:root {
  /* Primitive Color Tokens */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  --color-cream-50: rgba(252, 252, 249, 1);
  --color-cream-100: rgba(255, 255, 253, 1);
  --color-gray-200: rgba(245, 245, 245, 1);
  --color-gray-300: rgba(167, 169, 169, 1);
  --color-gray-400: rgba(119, 124, 124, 1);
  --color-slate-500: rgba(98, 108, 113, 1);
  --color-brown-600: rgba(94, 82, 64, 1);
  --color-charcoal-700: rgba(31, 33, 33, 1);
  --color-charcoal-800: rgba(38, 40, 40, 1);
  --color-slate-900: rgba(19, 52, 59, 1);
  --color-teal-300: rgba(50, 184, 198, 1);
  --color-teal-400: rgba(45, 166, 178, 1);
  --color-teal-500: rgba(33, 128, 141, 1);
  --color-teal-600: rgba(29, 116, 128, 1);
  --color-teal-700: rgba(26, 104, 115, 1);
  --color-teal-800: rgba(41, 150, 161, 1);
  --color-red-400: rgba(255, 84, 89, 1);
  --color-red-500: rgba(192, 21, 47, 1);
  --color-orange-400: rgba(230, 129, 97, 1);
  --color-orange-500: rgba(168, 75, 47, 1);

  /* RGB versions for opacity control */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;
  --color-slate-500-rgb: 98, 108, 113;
  --color-red-500-rgb: 192, 21, 47;
  --color-red-400-rgb: 255, 84, 89;
  --color-orange-500-rgb: 168, 75, 47;
  --color-orange-400-rgb: 230, 129, 97;

  /* Background color tokens (Light Mode) */
  --color-bg-1: rgba(59, 130, 246, 0.08); /* Light blue */
  --color-bg-2: rgba(245, 158, 11, 0.08); /* Light yellow */
  --color-bg-3: rgba(34, 197, 94, 0.08); /* Light green */
  --color-bg-4: rgba(239, 68, 68, 0.08); /* Light red */
  --color-bg-5: rgba(147, 51, 234, 0.08); /* Light purple */
  --color-bg-6: rgba(249, 115, 22, 0.08); /* Light orange */
  --color-bg-7: rgba(236, 72, 153, 0.08); /* Light pink */
  --color-bg-8: rgba(6, 182, 212, 0.08); /* Light cyan */

  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);
  --color-select-caret: rgba(var(--color-slate-900-rgb), 0.8);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  /* Typography */
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    /* RGB versions for opacity control (Dark Mode) */
    --color-gray-400-rgb: 119, 124, 124;
    --color-teal-300-rgb: 50, 184, 198;
    --color-gray-300-rgb: 167, 169, 169;
    --color-gray-200-rgb: 245, 245, 245;

    /* Background color tokens (Dark Mode) */
    --color-bg-1: rgba(29, 78, 216, 0.15); /* Dark blue */
    --color-bg-2: rgba(180, 83, 9, 0.15); /* Dark yellow */
    --color-bg-3: rgba(21, 128, 61, 0.15); /* Dark green */
    --color-bg-4: rgba(185, 28, 28, 0.15); /* Dark red */
    --color-bg-5: rgba(107, 33, 168, 0.15); /* Dark purple */
    --color-bg-6: rgba(194, 65, 12, 0.15); /* Dark orange */
    --color-bg-7: rgba(190, 24, 93, 0.15); /* Dark pink */
    --color-bg-8: rgba(8, 145, 178, 0.15); /* Dark cyan */

    /* Semantic Color Tokens (Dark Mode) */
    --color-background: var(--color-charcoal-700);
    --color-surface: var(--color-charcoal-800);
    --color-text: var(--color-gray-200);
    --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
    --color-primary: var(--color-teal-300);
    --color-primary-hover: var(--color-teal-400);
    --color-primary-active: var(--color-teal-800);
    --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
    --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
    --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
    --color-border: rgba(var(--color-gray-400-rgb), 0.3);
    --color-error: var(--color-red-400);
    --color-success: var(--color-teal-300);
    --color-warning: var(--color-orange-400);
    --color-info: var(--color-gray-300);
    --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
    --color-btn-primary-text: var(--color-slate-900);
    --color-card-border: rgba(var(--color-gray-400-rgb), 0.2);
    --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
      inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    --button-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

    /* Common style patterns - updated for dark mode */
    --focus-ring: 0 0 0 3px var(--color-focus-ring);
    --focus-outline: 2px solid var(--color-primary);
    --status-bg-opacity: 0.15;
    --status-border-opacity: 0.25;
    --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

    /* RGB versions for dark mode */
    --color-success-rgb: var(--color-teal-300-rgb);
    --color-error-rgb: var(--color-red-400-rgb);
    --color-warning-rgb: var(--color-orange-400-rgb);
    --color-info-rgb: var(--color-gray-300-rgb);
  }
}

/* Data attribute for manual theme switching */
[data-color-scheme="dark"] {
  /* RGB versions for opacity control (dark mode) */
  --color-gray-400-rgb: 119, 124, 124;
  --color-teal-300-rgb: 50, 184, 198;
  --color-gray-300-rgb: 167, 169, 169;
  --color-gray-200-rgb: 245, 245, 245;

  /* Colorful background palette - Dark Mode */
  --color-bg-1: rgba(29, 78, 216, 0.15); /* Dark blue */
  --color-bg-2: rgba(180, 83, 9, 0.15); /* Dark yellow */
  --color-bg-3: rgba(21, 128, 61, 0.15); /* Dark green */
  --color-bg-4: rgba(185, 28, 28, 0.15); /* Dark red */
  --color-bg-5: rgba(107, 33, 168, 0.15); /* Dark purple */
  --color-bg-6: rgba(194, 65, 12, 0.15); /* Dark orange */
  --color-bg-7: rgba(190, 24, 93, 0.15); /* Dark pink */
  --color-bg-8: rgba(8, 145, 178, 0.15); /* Dark cyan */

  /* Semantic Color Tokens (Dark Mode) */
  --color-background: var(--color-charcoal-700);
  --color-surface: var(--color-charcoal-800);
  --color-text: var(--color-gray-200);
  --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
  --color-primary: var(--color-teal-300);
  --color-primary-hover: var(--color-teal-400);
  --color-primary-active: var(--color-teal-800);
  --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
  --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
  --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
  --color-border: rgba(var(--color-gray-400-rgb), 0.3);
  --color-error: var(--color-red-400);
  --color-success: var(--color-teal-300);
  --color-warning: var(--color-orange-400);
  --color-info: var(--color-gray-300);
  --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
  --color-btn-primary-text: var(--color-slate-900);
  --color-card-border: rgba(var(--color-gray-400-rgb), 0.15);
  --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  --color-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
  --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

  /* Common style patterns - updated for dark mode */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for dark mode */
  --color-success-rgb: var(--color-teal-300-rgb);
  --color-error-rgb: var(--color-red-400-rgb);
  --color-warning-rgb: var(--color-orange-400-rgb);
  --color-info-rgb: var(--color-gray-300-rgb);
}

[data-color-scheme="light"] {
  /* RGB versions for opacity control (light mode) */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;

  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);

  /* RGB versions for light mode */
  --color-success-rgb: var(--color-teal-500-rgb);
  --color-error-rgb: var(--color-red-500-rgb);
  --color-warning-rgb: var(--color-orange-500-rgb);
  --color-info-rgb: var(--color-slate-500-rgb);
}

/* Base styles */
html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-md);
}

p {
  margin: 0 0 var(--space-16) 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
  color: var(--color-primary-hover);
}

code,
pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
}

.btn--primary:active {
  background: var(--color-primary-active);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-text);
}

.btn--secondary:hover {
  background: var(--color-secondary-hover);
}

.btn--secondary:active {
  background: var(--color-secondary-active);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-secondary);
}

.btn--google {
  background: #fff;
  border: 1px solid #dadce0;
  color: #3c4043;
  font-weight: 500;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn--google:hover {
  background: #f8f9fa;
  border-color: #c4c7c5;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
  transform: translateY(-1px);
}

.btn--google:active {
  background: #f1f3f4;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  transform: translateY(0);
}

.btn--google img {
  vertical-align: middle;
  margin-top: -1px; /* Fine-tune vertical alignment */
}

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

/* Add a dark mode specific caret */
@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

/* Also handle data-color-scheme */
[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-group {
  margin-bottom: var(--space-16);
}

/* Card component */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

/* Status indicators - simplified with CSS variables */
.status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.status--success {
  background-color: rgba(
    var(--color-success-rgb, 33, 128, 141),
    var(--status-bg-opacity)
  );
  color: var(--color-success);
  border: 1px solid
    rgba(var(--color-success-rgb, 33, 128, 141), var(--status-border-opacity));
}

.status--error {
  background-color: rgba(
    var(--color-error-rgb, 192, 21, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-error);
  border: 1px solid
    rgba(var(--color-error-rgb, 192, 21, 47), var(--status-border-opacity));
}

.status--warning {
  background-color: rgba(
    var(--color-warning-rgb, 168, 75, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-warning);
  border: 1px solid
    rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-border-opacity));
}

.status--info {
  background-color: rgba(
    var(--color-info-rgb, 98, 108, 113),
    var(--status-bg-opacity)
  );
  color: var(--color-info);
  border: 1px solid
    rgba(var(--color-info-rgb, 98, 108, 113), var(--status-border-opacity));
}

/* Container layout */
.container {
  width: 100%;
  max-width: 100vw;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
  box-sizing: border-box;
  overflow-x: hidden;
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
  }
}
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
  }
}
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Utility classes */
.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-4 {
  gap: var(--space-4);
}
.gap-8 {
  gap: var(--space-8);
}
.gap-16 {
  gap: var(--space-16);
}

.m-0 {
  margin: 0;
}
.mt-8 {
  margin-top: var(--space-8);
}
.mb-8 {
  margin-bottom: var(--space-8);
}
.mx-8 {
  margin-left: var(--space-8);
  margin-right: var(--space-8);
}
.my-8 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.p-0 {
  padding: 0;
}
.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}
.px-8 {
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}
.py-16 {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}
.px-16 {
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.block {
  display: block;
}
.hidden {
  display: none;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border-secondary);
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2')
    format('woff2');
}

/* END PERPLEXITY DESIGN SYSTEM */
:root {
  /* Primitive Color Tokens */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  --color-cream-50: rgba(252, 252, 249, 1);
  --color-cream-100: rgba(255, 255, 253, 1);
  --color-gray-200: rgba(245, 245, 245, 1);
  --color-gray-300: rgba(167, 169, 169, 1);
  --color-gray-400: rgba(119, 124, 124, 1);
  --color-slate-500: rgba(98, 108, 113, 1);
  --color-brown-600: rgba(94, 82, 64, 1);
  --color-charcoal-700: rgba(31, 33, 33, 1);
  --color-charcoal-800: rgba(38, 40, 40, 1);
  --color-slate-900: rgba(19, 52, 59, 1);
  --color-teal-300: rgba(50, 184, 198, 1);
  --color-teal-400: rgba(45, 166, 178, 1);
  --color-teal-500: rgba(33, 128, 141, 1);
  --color-teal-600: rgba(29, 116, 128, 1);
  --color-teal-700: rgba(26, 104, 115, 1);
  --color-teal-800: rgba(41, 150, 161, 1);
  --color-red-400: rgba(255, 84, 89, 1);
  --color-red-500: rgba(192, 21, 47, 1);
  --color-orange-400: rgba(230, 129, 97, 1);
  --color-orange-500: rgba(168, 75, 47, 1);

  /* Medical/Healthcare specific colors */
  --color-medical-blue: rgba(30, 64, 175, 1);
  --color-medical-teal: rgba(20, 184, 166, 1);
  --color-medical-green: rgba(16, 185, 129, 1);
  
  /* RGB versions for opacity control */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;
  --color-slate-500-rgb: 98, 108, 113;
  --color-red-500-rgb: 192, 21, 47;
  --color-red-400-rgb: 255, 84, 89;
  --color-orange-500-rgb: 168, 75, 47;
  --color-orange-400-rgb: 230, 129, 97;
  --color-medical-blue-rgb: 30, 64, 175;
  --color-medical-teal-rgb: 20, 184, 166;
  --color-medical-green-rgb: 16, 185, 129;

  /* Background color tokens */
  --color-bg-1: rgba(59, 130, 246, 0.08);
  --color-bg-2: rgba(245, 158, 11, 0.08);
  --color-bg-3: rgba(34, 197, 94, 0.08);
  --color-bg-4: rgba(239, 68, 68, 0.08);
  --color-bg-5: rgba(147, 51, 234, 0.08);
  --color-bg-6: rgba(249, 115, 22, 0.08);
  --color-bg-7: rgba(236, 72, 153, 0.08);
  --color-bg-8: rgba(6, 182, 212, 0.08);

  /* Healthcare themed semantic colors */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-medical-blue);
  --color-primary-hover: rgba(var(--color-medical-blue-rgb), 0.9);
  --color-primary-active: rgba(var(--color-medical-blue-rgb), 0.8);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-white);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-medical-green);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-medical-blue-rgb), 0.4);

  /* Typography */
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;
  --space-48: 48px;
  --space-64: 64px;
  --space-80: 80px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Base styles */
html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  width: 100%;
  overflow-x: hidden;
  position: relative;
}

*, *::before, *::after {
  box-sizing: inherit;
}

/* Ensure all containers are responsive */
img,
picture,
video,
canvas,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Prevent horizontal overflow */
html {
  overflow-x: hidden;
  width: 100%;
}

/* Make all containers fluid */
.container,
.hero,
.features,
.pricing,
.dashboard,
.analyzer,
section {
  max-width: 100%;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p {
  margin: 0 0 var(--space-16) 0;
  line-height: var(--line-height-normal);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
  color: var(--color-primary-hover);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-secondary);
}

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
}

.btn--lg {
  padding: var(--space-12) var(--space-24);
  font-size: var(--font-size-lg);
}

.btn--full-width {
  width: 100%;
}

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.form-group {
  margin-bottom: var(--space-16);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
}

/* Layout */
.container {
  width: 100%;
  max-width: 100vw;
  margin: 0 auto;
  padding: 0 var(--space-16);
  box-sizing: border-box;
  overflow-x: hidden;
}

.page {
  display: none;
  min-height: calc(100vh - 80px);
}

.page.active {
  display: block;
}

/* Navigation */
.navbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-16) 0;
  position: sticky;
  top: 0;
  z-index: 1000; /* Increased z-index to ensure it's above everything */
}

.navbar button,
.navbar a,
.navbar .nav-link,
.navbar .btn {
  position: relative;
  z-index: 1001; /* Ensure buttons are above navbar background */
  cursor: pointer !important; /* Force cursor to pointer */
  pointer-events: auto !important; /* Ensure pointer events work */
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.nav-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.nav-brand h2 {
  color: var(--color-primary);
  margin: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-24);
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  transition: color var(--duration-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.user-menu,
.auth-menu {
  display: flex;
  align-items: center;
  gap: var(--space-16);
}

.hidden {
  display: none !important;
}

/* Mobile Menu Toggle (Hamburger) - Hidden by default on desktop */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 102;
  transition: transform var(--duration-normal);
  position: relative;
}

.mobile-menu-toggle:hover {
  transform: scale(1.1);
}

.mobile-menu-toggle:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.hamburger-line {
  width: 100%;
  height: 3px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all var(--duration-normal) ease;
  display: block;
}

/* Hamburger animation when menu is open */
.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: translateX(-20px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Navigation Styles */
@media (max-width: 768px) {
  /* Show hamburger menu on mobile */
  .mobile-menu-toggle {
    display: flex;
  }

  /* Hide nav links by default on mobile */
  .nav-links {
    position: fixed;
    top: 72px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 72px);
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-24);
    transition: left var(--duration-normal) ease;
    overflow-y: auto;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 101;
  }

  /* Show nav links when menu is active */
  .nav-links.active {
    left: 0;
  }

  
  /* Stack nav links vertically on mobile */
  .nav-link {
    width: 100%;
    padding: var(--space-16);
    border-bottom: 1px solid var(--color-border);
    font-size: 1.1rem;
    text-align: left;
  }
  
  /* User menu and auth menu stack vertically */
  .user-menu,
  .auth-menu {
    flex-direction: column;
    width: 100%;
    gap: var(--space-12);
    padding-top: var(--space-16);
    border-top: 2px solid var(--color-border);
    margin-top: var(--space-16);
  }
  
  .user-menu .nav-link,
  .auth-menu .nav-link {
    border-bottom: 1px solid var(--color-border);
  }
  
  .user-menu .btn,
  .auth-menu .btn {
    width: 100%;
    justify-content: center;
  }
  
  /* Make navbar container position relative for absolute positioning */
  .navbar .container {
    position: relative;
  }
  
  /* Reduce navbar brand size on mobile */
  .nav-brand h2 {
    font-size: 1.1rem;
  }
  
  .nav-logo {
    height: 32px;
  }
}

/* Tablet adjustments */
@media (min-width: 769px) and (max-width: 991px) {
  .nav-links {
    gap: var(--space-16);
  }
  
  .nav-link {
    font-size: 0.9rem;
  }
  
  .nav-brand h2 {
    font-size: 1.15rem;
  }
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-3));
  padding: var(--space-80) 0;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: var(--space-24);
  background: linear-gradient(135deg, var(--color-primary), var(--color-medical-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-32);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: var(--space-16);
  justify-content: center;
  margin-bottom: var(--space-24);
  flex-wrap: wrap;
}

.trust-indicator {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin: 0;
}

/* Features Section */
.features {
  padding: var(--space-80) 0;
  background: var(--color-surface);
}

.features h2 {
  text-align: center;
  margin-bottom: var(--space-48);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-32);
}

.feature-card {
  text-align: center;
  padding: var(--space-24);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--space-16);
}

.feature-card h3 {
  margin-bottom: var(--space-12);
}

.feature-card p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* Pricing */
.pricing-preview {
  padding: var(--space-80) 0;
}

.pricing-preview h2 {
  text-align: center;
  margin-bottom: var(--space-48);
}

.pricing-cta {
  text-align: center;
  margin-top: var(--space-32);
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--space-48);
}

.billing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-16);
  margin-top: var(--space-24);
}

.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-border);
  transition: .4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--color-primary);
}

input:checked + .slider:before {
  transform: translateX(26px);
}

.discount-badge {
  background: var(--color-success);
  color: white;
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

.pricing-cards,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-24);
  margin-bottom: var(--space-48);
}

.pricing-card {
  background: var(--color-surface);
  border: 2px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  text-align: center;
  position: relative;
  transition: transform var(--duration-normal), box-shadow var(--duration-normal);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
  border-color: var(--color-primary);
  transform: scale(1.05);
}

.pricing-card.popular::before {
  content: "Most Popular";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: var(--space-4) var(--space-16);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.pricing-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-8);
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.pricing-billing {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-24);
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-32) 0;
}

.pricing-features li {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-faq {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: var(--space-24);
  padding: var(--space-24);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
}

.faq-item h4 {
  margin-bottom: var(--space-12);
}

.faq-item p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* Demo Page */
.demo-header {
  text-align: center;
  margin-bottom: var(--space-48);
  padding-top: var(--space-48);
}

.demo-section {
  max-width: 1000px;
  margin: 0 auto var(--space-48);
}

.demo-input {
  margin-bottom: var(--space-32);
}

.demo-textarea {
  min-height: 200px;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
}

.demo-actions {
  display: flex;
  gap: var(--space-16);
  margin-top: var(--space-16);
  flex-wrap: wrap;
}

.demo-results {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  margin-top: var(--space-24);
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-24);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid var(--color-border);
}

.results-stats {
  display: flex;
  gap: var(--space-16);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.entity-group {
  margin-bottom: var(--space-24);
}

.entity-group h4 {
  margin-bottom: var(--space-12);
  padding: var(--space-8) var(--space-12);
  background: var(--color-bg-1);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.entity-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-8) var(--space-12);
  margin: var(--space-4) 0;
  background: var(--color-background);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
}

.entity-text {
  font-weight: var(--font-weight-medium);
}

.entity-confidence {
  font-size: var(--font-size-sm);
  padding: var(--space-2) var(--space-8);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
}

.confidence-high {
  background: rgba(var(--color-medical-green-rgb), 0.1);
  color: var(--color-success);
}

.confidence-medium {
  background: rgba(var(--color-orange-500-rgb), 0.1);
  color: var(--color-warning);
}

.confidence-low {
  background: rgba(var(--color-red-500-rgb), 0.1);
  color: var(--color-error);
}

.demo-upgrade {
  text-align: center;
}

.upgrade-card {
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-3));
  padding: var(--space-48) var(--space-32);
  border-radius: var(--radius-xl);
  max-width: 600px;
  margin: 0 auto;
}

/* Dashboard */
.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-32);
  padding-top: var(--space-48);
}

.plan-badge {
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.plan-free {
  background: var(--color-bg-2);
  color: var(--color-warning);
}

.plan-professional {
  background: rgba(var(--color-medical-green-rgb), 0.1);
  color: var(--color-success);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-24);
  margin-bottom: var(--space-32);
}

.dashboard-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  border: 1px solid var(--color-card-border);
}

.dashboard-card.full-width {
  grid-column: 1 / -1;
}

.dashboard-card h3 {
  margin-bottom: var(--space-16);
  font-size: var(--font-size-lg);
}

.usage-stats {
  margin-bottom: var(--space-16);
}

.usage-bar {
  background: var(--color-bg-2);
  height: 8px;
  border-radius: var(--radius-full);
  margin: var(--space-8) 0;
  overflow: hidden;
}

.usage-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width var(--duration-normal);
}

.usage-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.quick-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.activity-log {
  max-height: 300px;
  overflow-y: auto;
}

.activity-item {
  display: flex;
  justify-content: space-between;
  padding: var(--space-12);
  border-bottom: 1px solid var(--color-border);
}

.activity-item:last-child {
  border-bottom: none;
}

.activity-action {
  font-weight: var(--font-weight-medium);
}

.activity-time {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.upgrade-prompt {
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-3));
  padding: var(--space-32);
  border-radius: var(--radius-xl);
  text-align: center;
}

/* Analyzer */
.analyzer-tabs {
  display: flex;
  margin-bottom: var(--space-24);
  border-bottom: 1px solid var(--color-border);
}

.tab-btn {
  background: none;
  border: none;
  padding: var(--space-12) var(--space-16);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--duration-fast);
  font-weight: var(--font-weight-medium);
}

.tab-btn.active {
  border-bottom-color: var(--color-primary);
  color: var(--color-primary);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.upload-area {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-48);
  text-align: center;
  transition: border-color var(--duration-fast);
  cursor: pointer;
}

.upload-area:hover {
  border-color: var(--color-primary);
}

.upload-area.dragover {
  border-color: var(--color-primary);
  background: var(--color-bg-1);
}

.upload-icon {
  font-size: 3rem;
  margin-bottom: var(--space-16);
}

.upload-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
}

.processing-options {
  background: var(--color-surface);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  margin: var(--space-24) 0;
}

.option-group {
  margin-bottom: var(--space-16);
}

.option-group:last-child {
  margin-bottom: 0;
}

.analysis-results {
  margin-top: var(--space-24);
}

.results-actions {
  display: flex;
  gap: var(--space-8);
}

.results-tabs {
  display: flex;
  margin: var(--space-24) 0;
  border-bottom: 1px solid var(--color-border);
}

.results-tab-btn {
  background: none;
  border: none;
  padding: var(--space-12) var(--space-16);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--duration-fast);
}

.results-tab-btn.active {
  border-bottom-color: var(--color-primary);
  color: var(--color-primary);
}

.results-tab-content {
  display: none;
}

.results-tab-content.active {
  display: block;
}

.highlighted-text {
  line-height: 1.8;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
}

.entity-highlight {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-medium);
}

.entity-disease {
  background: rgba(var(--color-red-500-rgb), 0.1);
  color: var(--color-red-500);
}

.entity-drug {
  background: rgba(var(--color-medical-blue-rgb), 0.1);
  color: var(--color-medical-blue);
}

.entity-symptom {
  background: rgba(var(--color-orange-500-rgb), 0.1);
  color: var(--color-orange-500);
}

.entity-anatomy {
  background: rgba(var(--color-medical-green-rgb), 0.1);
  color: var(--color-medical-green);
}

.entities-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-16);
}

.entities-table th,
.entities-table td {
  padding: var(--space-12);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.entities-table th {
  background: var(--color-bg-1);
  font-weight: var(--font-weight-semibold);
}

/* API Documentation */
.api-header {
  text-align: center;
  margin-bottom: var(--space-48);
  padding-top: var(--space-48);
}

.api-content {
  max-width: 800px;
  margin: 0 auto;
}

.api-section {
  margin-bottom: var(--space-48);
}

.api-section h2 {
  margin-bottom: var(--space-24);
}

.code-block {
  background: var(--color-charcoal-700);
  color: var(--color-gray-200);
  padding: var(--space-16);
  border-radius: var(--radius-base);
  margin: var(--space-16) 0;
  overflow-x: auto;
}

.code-block pre {
  margin: 0;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
}

.api-key-section {
  background: var(--color-surface);
  padding: var(--space-16);
  border-radius: var(--radius-base);
  margin: var(--space-16) 0;
}

.api-key-display {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  margin-top: var(--space-12);
}

.api-key {
  font-family: var(--font-family-mono);
  background: var(--color-background);
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
  flex: 1;
  font-size: var(--font-size-sm);
}

.code-examples {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-24);
}

.code-example h4 {
  margin-bottom: var(--space-12);
}

/* Billing */
.billing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-24);
  margin: var(--space-32) 0;
}

.billing-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  border: 1px solid var(--color-card-border);
}

.billing-card.full-width {
  grid-column: 1 / -1;
}

.billing-card h3 {
  margin-bottom: var(--space-16);
}

.plan-info {
  margin-bottom: var(--space-16);
}

.plan-name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-8);
}

.plan-price {
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

.chart-container {
  height: 200px;
  position: relative;
}

.payment-method {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-16);
  background: var(--color-background);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
}

.card-info {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.card-icon {
  font-size: var(--font-size-xl);
}

.card-type {
  background: var(--color-primary);
  color: white;
  padding: var(--space-2) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

.billing-actions {
  display: flex;
  gap: var(--space-16);
  justify-content: center;
  margin-top: var(--space-32);
}

/* About Page */
.about-header {
  text-align: center;
  margin-bottom: var(--space-48);
  padding-top: var(--space-48);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-section {
  margin-bottom: var(--space-48);
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-24);
  margin-top: var(--space-24);
}

.use-case-card {
  text-align: center;
  padding: var(--space-24);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
}

.use-case-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-16);
}

.use-case-card h3 {
  margin-bottom: var(--space-12);
}

.use-case-card p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* Stripe Elements Styles */
.stripe-card-element {
    padding: 12px 16px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: white;
    font-size: 16px;
    transition: border-color 0.15s ease;
}

.stripe-card-element:focus {
    outline: none;
    border-color: #1E40AF;
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.card-errors {
    color: #dc3545;
    font-size: 14px;
    margin-top: 4px;
    display: none;
}

.card-errors.show {
    display: block;
}

/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  max-height: 90%;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-24);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  cursor: pointer;
  color: var(--color-text-secondary);
}

.modal-body {
  padding: var(--space-24);
}

.checkout-summary {
  background: var(--color-background);
  padding: var(--space-16);
  border-radius: var(--radius-base);
  margin-bottom: var(--space-24);
}

.checkout-summary h4 {
  margin-bottom: var(--space-8);
}

.checkout-summary p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* Loading */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1001;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-16);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .nav-links {
    gap: var(--space-16);
  }
  
  .features-grid,
  .pricing-cards,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .dashboard-grid,
  .billing-grid {
    grid-template-columns: 1fr;
  }
  
  .demo-actions {
    flex-direction: column;
  }
  
  .results-header {
    flex-direction: column;
    gap: var(--space-16);
  }
  
  .results-actions {
    justify-content: center;
  }
  
  .billing-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .use-cases-grid {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 0 var(--space-12);
  }
}

/* Utility classes */
.text-center { text-align: center; }
.text-sm { font-size: var(--font-size-sm); }
.text-lg { font-size: var(--font-size-lg); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.mt-16 { margin-top: var(--space-16); }
.mb-16 { margin-bottom: var(--space-16); }
.p-16 { padding: var(--space-16); }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: var(--space-8); }
.gap-16 { gap: var(--space-16); }

/* Footer Styles */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-64) 0 var(--space-32);
  margin-top: var(--space-80);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--space-48);
  margin-bottom: var(--space-32);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.footer-logo {
  height: 50px;
  width: auto;
  object-fit: contain;
  margin-bottom: var(--space-8);
}

.footer-tagline {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin: 0;
}

.footer-description {
  color: var(--color-text-secondary);
  margin: 0;
  font-size: var(--font-size-sm);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-32);
}

.footer-column h4 {
  margin-bottom: var(--space-16);
  font-size: var(--font-size-md);
  color: var(--color-text);
}

.footer-column a {
  display: block;
  margin-bottom: var(--space-8);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: color var(--duration-fast);
}

.footer-column a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: var(--space-24);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.footer-powered {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

.footer-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  transition: color var(--duration-fast);
}

.footer-link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* Legal Pages Styles */
.legal-header {
  text-align: center;
  margin-bottom: var(--space-48);
  padding-top: var(--space-48);
}

.legal-updated {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-top: var(--space-8);
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: var(--space-48);
}

.legal-section {
  margin-bottom: var(--space-48);
}

.legal-section h2 {
  margin-bottom: var(--space-24);
  color: var(--color-primary);
}

.legal-section h3 {
  margin-top: var(--space-24);
  margin-bottom: var(--space-16);
}

.legal-section ul,
.legal-section ol {
  margin: var(--space-16) 0;
  padding-left: var(--space-32);
}

.legal-section li {
  margin-bottom: var(--space-8);
  line-height: var(--line-height-normal);
}

.legal-email {
  margin-top: var(--space-16);
}

.legal-email a {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-lg);
}

/* Selected Files Display */
.selected-files {
  margin-top: var(--space-24);
  padding: var(--space-16);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.selected-files h4 {
  margin-bottom: var(--space-12);
  font-size: var(--font-size-md);
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-12);
  background: var(--color-background);
  border-radius: var(--radius-base);
  margin-bottom: var(--space-8);
  border: 1px solid var(--color-border);
}

.file-info {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  flex: 1;
}

.file-icon {
  font-size: var(--font-size-xl);
}

.file-details {
  flex: 1;
}

.file-name {
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-2);
}

.file-size {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.file-remove {
  background: none;
  border: none;
  color: var(--color-error);
  cursor: pointer;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  transition: background-color var(--duration-fast);
}

.file-remove:hover {
  background: rgba(var(--color-error-rgb), 0.1);
}

/* Improved Analysis Results Display */
.results-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
}

.results-summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-16);
  margin-bottom: var(--space-32);
}

.summary-card {
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-3));
  padding: var(--space-20);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--color-card-border);
}

.summary-card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-8);
}

.summary-card-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.summary-card-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.entity-group {
  margin-bottom: var(--space-32);
  background: var(--color-background);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  border: 1px solid var(--color-border);
}

.entity-group h4 {
  margin-bottom: var(--space-16);
  padding: var(--space-12) var(--space-16);
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-3));
  border-radius: var(--radius-base);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.entity-count-badge {
  background: var(--color-primary);
  color: white;
  padding: var(--space-2) var(--space-12);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

.entity-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-12) var(--space-16);
  margin: var(--space-8) 0;
  background: var(--color-surface);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
  transition: all var(--duration-fast);
}

.entity-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.entity-text {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.entity-confidence {
  font-size: var(--font-size-sm);
  padding: var(--space-4) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
}

.highlighted-text {
  line-height: 2;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  padding: var(--space-20);
  background: var(--color-background);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  white-space: pre-wrap;
  word-wrap: break-word;
}

.entity-highlight {
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-semibold);
  transition: all var(--duration-fast);
  cursor: pointer;
  border: 1px solid transparent;
}

.entity-highlight:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-sm);
}

/* Responsive Footer */
@media (max-width: 768px) {
  .footer {
    padding: var(--space-48) 0 var(--space-24);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-32);
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--space-24);
  }
  
  .footer-bottom {
    text-align: center;
  }
}

/* Additional Aesthetic Improvements */

/* Smooth animations for page transitions */
.page {
  animation: fadeIn var(--duration-normal) var(--ease-standard);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Enhanced pricing card animations */
.pricing-card {
  transition: all var(--duration-normal) var(--ease-standard);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

/* Feature card hover effects */
.feature-card {
  transition: all var(--duration-normal) var(--ease-standard);
}

.feature-card:hover {
  transform: translateY(-4px);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
}

/* Use case card hover effects */
.use-case-card {
  transition: all var(--duration-normal) var(--ease-standard);
}

.use-case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

/* Enhanced button animations */
.btn {
  overflow: hidden;
  position: relative;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%);
  transition: width var(--duration-normal), height var(--duration-normal);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

/* Summary card animations */
.summary-card {
  transition: all var(--duration-normal) var(--ease-standard);
  cursor: default;
}

.summary-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-md);
}

/* Enhanced demo results appearance */
.demo-results {
  animation: slideIn var(--duration-normal) var(--ease-standard);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Results stats container enhancement */
.results-stats {
  width: 100%;
}

/* Smooth scroll padding for navigation */
:target {
  scroll-margin-top: 100px;
}

/* Enhanced table hover effects */
.entities-table tbody tr {
  transition: background-color var(--duration-fast);
}

.entities-table tbody tr:hover {
  background: var(--color-bg-1);
}

/* Loading animation enhancement */
.loading-overlay {
  backdrop-filter: blur(4px);
}

/* Modal animation */
.modal {
  animation: modalFadeIn var(--duration-normal) var(--ease-standard);
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal-content {
  animation: modalSlideIn var(--duration-normal) var(--ease-standard);
}

@keyframes modalSlideIn {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Enhanced nav link hover */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--duration-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Footer link animations */
.footer-column a {
  position: relative;
  padding-left: var(--space-4);
}

.footer-column a::before {
  content: '→';
  position: absolute;
  left: -10px;
  opacity: 0;
  transition: all var(--duration-fast);
}

.footer-column a:hover::before {
  left: 0;
  opacity: 1;
}

/* Legal section scrollbar styling */
.legal-content {
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-border);
}

.legal-content::-webkit-scrollbar {
  width: 8px;
}

.legal-content::-webkit-scrollbar-track {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

.legal-content::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.legal-content::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-hover);
}

/* Activity log scrollbar styling */
.activity-log {
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-border);
}

.activity-log::-webkit-scrollbar {
  width: 6px;
}

.activity-log::-webkit-scrollbar-track {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

.activity-log::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

/* Focus states for accessibility */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Selection styling */
::selection {
  background: var(--color-primary);
  color: white;
}

/* Gradient text for hero */
.hero h1 {
  animation: gradientShift 5s ease infinite;
  background-size: 200% auto;
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% center;
  }
  50% {
    background-position: 100% center;
  }
}

/* Upload area pulse effect on drag */
.upload-area.dragover {
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    border-color: var(--color-primary);
  }
  50% {
    border-color: var(--color-primary-hover);
    background: var(--color-bg-1);
  }
}

/* Tooltip-like effect for confidence badges */
.entity-confidence {
  cursor: help;
  position: relative;
}

/* Improved discount badge */
.discount-badge {
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-2px);
  }
}

/* Loading spinner enhancement */
.spinner {
  box-shadow: 0 0 20px rgba(var(--color-primary-rgb), 0.3);
}

/* Trust indicator animation */
.trust-indicator {
  animation: fadeInUp 1s ease-out 0.5s backwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Card border glow on hover */
.dashboard-card:hover,
.billing-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

/* Smooth transitions for all interactive elements */
a, button, input, select, textarea {
  transition: all var(--duration-fast) var(--ease-standard);
}

/* Partner Advertisement Card */
.partner-ad {
  padding: var(--space-64) 0;
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-5));
}

.partner-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-48);
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--color-card-border);
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-standard);
}

.partner-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.partner-badge {
  position: absolute;
  top: var(--space-24);
  right: var(--space-24);
  background: linear-gradient(135deg, var(--color-primary), var(--color-medical-teal));
  color: white;
  padding: var(--space-8) var(--space-20);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-md);
}

.partner-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-48);
  align-items: center;
}

.partner-info h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-12);
  color: var(--color-text);
}

.partner-info h3 {
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  margin-bottom: var(--space-16);
}

.partner-info p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-24);
  line-height: 1.6;
}

.partner-features {
  list-style: none;
  padding: 0;
  margin: var(--space-24) 0;
}

.partner-features li {
  padding: var(--space-8) 0;
  font-size: var(--font-size-md);
  color: var(--color-text);
  display: flex;
  align-items: center;
}

.partner-features li:before {
  margin-right: var(--space-8);
}

.partner-info .btn {
  margin-top: var(--space-24);
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
}

.partner-visual {
  text-align: center;
  padding: var(--space-32);
}

.partner-icon {
  font-size: 8rem;
  margin-bottom: var(--space-24);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

.partner-subtext {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-style: italic;
  margin-top: var(--space-16);
}

/* Responsive Partner Ad */
@media (max-width: 768px) {
  .partner-ad {
    padding: var(--space-48) 0;
  }
  
  .partner-card {
    padding: var(--space-32);
  }
  
  .partner-badge {
    position: static;
    display: inline-block;
    margin-bottom: var(--space-16);
  }
  
  .partner-content {
    grid-template-columns: 1fr;
    gap: var(--space-32);
  }
  
  .partner-info h2 {
    font-size: var(--font-size-2xl);
  }
  
  .partner-info h3 {
    font-size: var(--font-size-xl);
  }
  
  .partner-icon {
    font-size: 5rem;
  }
}

/* Security Question Styles */
.security-section {
  margin-top: var(--space-24);
  padding: var(--space-20);
  background: var(--color-bg-1);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
}

.security-section h4 {
  margin-bottom: var(--space-12);
  font-size: var(--font-size-lg);
  color: var(--color-primary);
}

.form-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-16) 0;
  display: block;
}

.form-help {
  display: block;
  margin-top: var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-style: italic;
}

.form-links {
  margin-top: var(--space-16);
  text-align: center;
  display: flex;
  justify-content: center;
  gap: var(--space-24);
}

.form-links a {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.form-links a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

.form-divider {
  margin: var(--space-24) 0;
  text-align: center;
  position: relative;
}

.form-divider::before,
.form-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 40%;
  height: 1px;
  background: var(--color-border);
}

.form-divider::before {
  left: 0;
}

.form-divider::after {
  right: 0;
}

.form-divider span {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding: 0 var(--space-12);
  background: var(--color-surface);
  position: relative;
  z-index: 1;
}

.modal-description {
  margin-bottom: var(--space-24);
  color: var(--color-text-secondary);
  font-size: var(--font-size-md);
  line-height: 1.6;
}

.security-question-display {
  margin: var(--space-24) 0;
  padding: var(--space-20);
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-3));
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-primary);
}

.security-question-display .form-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
}

.question-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: 0;
  padding: var(--space-12);
  background: var(--color-surface);
  border-radius: var(--radius-base);
}

.success-message {
  text-align: center;
  padding: var(--space-32);
}

.success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-24);
  background: var(--color-success);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: bold;
  animation: successPop 0.5s var(--ease-standard);
}

@keyframes successPop {
  0% {
    transform: scale(0);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

.success-message h4 {
  margin-bottom: var(--space-24);
  color: var(--color-success);
  font-size: var(--font-size-2xl);
}

.credentials-display {
  margin: var(--space-32) 0;
  padding: var(--space-24);
  background: var(--color-bg-3);
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-success);
}

.credentials-display label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
}

.credential-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin: 0;
  padding: var(--space-12);
  background: var(--color-surface);
  border-radius: var(--radius-base);
  font-family: var(--font-family-mono);
  word-break: break-all;
}

/* Forgot Credentials Button */
#forgot-credentials-btn {
  margin-right: var(--space-8);
}

/* Modal Body Max Height for Scrolling */
.modal-body {
  max-height: 70vh;
  overflow-y: auto;
}

/* Print styles */
/* ===========================================
   CORE RESPONSIVE FIXES
   =========================================== */

/* Ensure no element causes horizontal scroll */
* {
  max-width: 100%;
}

/* Allow specific elements to exceed if needed */
html,
body,
.container,
.hero,
.page,
section {
  max-width: none;
}

/* Fix common overflow issues */
pre,
code,
.code-block {
  overflow-x: auto;
  max-width: 100%;
  word-wrap: break-word;
}

/* Ensure tables don't break layout */
table {
  width: 100%;
  max-width: 100%;
  table-layout: fixed;
}

/* Make long text wrap */
p,
li,
span,
a {
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

/* Fix images and media */
img,
video,
iframe,
embed,
object {
  max-width: 100%;
  height: auto;
}

/* Ensure grids don't overflow */
.grid,
[class*="grid"],
[class*="-grid"] {
  max-width: 100%;
  overflow-x: hidden;
}

/* ===========================================
   RESPONSIVE DESIGN - MOBILE FIRST
   =========================================== */

/* Base: Mobile styles (already defined above) */

/* Small tablets and large phones (landscape) */
@media (min-width: 576px) {
  /* Typography adjustments */
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.875rem; }
  
  /* Buttons */
  .btn {
    padding: 0.625rem 1.5rem;
    font-size: 1rem;
  }
  
  /* Cards */
  .card {
    padding: var(--space-24);
  }
}

/* Tablets (portrait) */
@media (min-width: 768px) {
  /* Typography */
  h1 { font-size: 2.75rem; }
  h2 { font-size: 2.25rem; }
  
  /* Navigation */
  .nav-links {
    flex-direction: row;
    gap: var(--space-24);
  }
  
  /* Hero section */
  .hero h1 {
    font-size: 3rem;
    line-height: 1.1;
  }
  
  .hero-actions {
    flex-direction: row;
    justify-content: center;
  }
  
  /* Grids - 2 columns */
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-32);
  }
  
  .pricing-cards,
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Dashboard */
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Modal */
  .modal-content {
    max-width: 500px;
    margin: 5% auto;
  }
  
  /* Forms */
  .form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-16);
  }
}

/* Tablets (landscape) and small desktops */
@media (min-width: 992px) {
  /* Typography */
  h1 { font-size: 3.5rem; }
  h2 { font-size: 2.5rem; }
  
  /* Container spacing */
  .container {
    padding: 0 var(--space-32);
  }
  
  /* Hero */
  .hero {
    padding: 120px 0 80px;
  }
  
  .hero h1 {
    font-size: 3.5rem;
  }
  
  /* Grids - 3 columns */
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .pricing-cards,
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* Footer */
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* Navigation - full size */
  .navbar {
    padding: var(--space-16) 0;
  }
  
  .nav-container {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* Large desktops */
@media (min-width: 1200px) {
  /* Typography */
  h1 { font-size: 4rem; }
  
  /* Hero */
  .hero h1 {
    font-size: 4rem;
  }
  
  /* Container */
  .container {
    max-width: var(--container-xl);
  }
  
  /* Spacing */
  section {
    padding: 100px 0;
  }
  
  /* Cards get more breathing room */
  .feature-card,
  .pricing-card {
    padding: var(--space-40);
  }
}

/* Extra large screens */
@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
  
  /* Even more spacing */
  .hero {
    padding: 140px 0 100px;
  }
}

/* ===========================================
   MOBILE SPECIFIC STYLES
   =========================================== */

@media (max-width: 767px) {
  /* Reset font sizes for mobile */
  html {
    font-size: 14px;
  }
  
  /* Navigation */
  .navbar {
    padding: var(--space-12) 0;
  }
  
  .nav-logo {
    font-size: 1.25rem;
  }
  
  .nav-links {
    flex-direction: column;
    gap: var(--space-12);
  }
  
  .nav-link {
    font-size: 0.95rem;
    padding: 0.5rem 0;
  }
  
  /* Hero section */
  .hero {
    padding: 60px 0 40px;
    text-align: center;
  }
  
  .hero h1 {
    font-size: 2rem;
    line-height: 1.2;
    margin-bottom: var(--space-16);
  }
  
  .hero p {
    font-size: 1rem;
    margin-bottom: var(--space-24);
  }
  
  .hero-actions {
    flex-direction: column;
    gap: var(--space-12);
    align-items: stretch;
  }
  
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  
  /* Buttons */
  .btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    width: 100%;
    text-align: center;
  }
  
  .btn--sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }

  /* Google button mobile optimization */
  .btn--google {
    min-height: 44px; /* iOS touch target minimum */
    font-size: 0.95rem;
  }

  .btn--google img {
    width: 18px;
    height: 18px;
  }
  
  /* Cards */
  .card {
    padding: var(--space-20);
    margin-bottom: var(--space-16);
  }
  
  .feature-card,
  .pricing-card {
    padding: var(--space-24);
  }
  
  /* Grids become single column */
  .features-grid,
  .pricing-cards,
  .pricing-grid,
  .dashboard-grid,
  .analyzer-tabs,
  .results-tabs {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }
  
  /* Forms */
  .form-control {
    font-size: 16px; /* Prevents zoom on iOS */
    padding: 0.75rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  /* Modal */
  .modal-content {
    width: 95%;
    margin: 10% auto;
    max-height: 85vh;
    overflow-y: auto;
  }
  
  .modal-header h3 {
    font-size: 1.25rem;
  }
  
  .modal-body {
    padding: var(--space-20);
    max-height: 60vh;
    overflow-y: auto;
  }
  
  /* Tables - make them scrollable */
  .entities-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
  
  /* Footer */
  .footer {
    padding: var(--space-40) 0 var(--space-24);
    text-align: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-24);
    text-align: center;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
  }
  
  /* Dashboard stats */
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .stat-card {
    padding: var(--space-16);
  }
  
  /* Summary cards */
  .results-summary-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-12);
  }
  
  .summary-card {
    padding: var(--space-12);
  }
  
  .summary-card-value {
    font-size: 1.5rem;
  }
  
  /* Partner section */
  .partner-content {
    grid-template-columns: 1fr;
  }
  
  .partner-badge {
    position: static;
    margin-bottom: var(--space-12);
  }
  
  /* Navigation menu - mobile hamburger */
  .nav-menu {
    position: fixed;
    top: 60px;
    left: -100%;
    width: 100%;
    background: var(--color-surface);
    transition: left 0.3s ease;
    padding: var(--space-20);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  /* Spacing adjustments */
  section {
    padding: 40px 0;
  }
  
  .container {
    padding: 0 var(--space-16);
  }
  
  /* Typography */
  h1 { font-size: 1.75rem; margin-bottom: var(--space-16); }
  h2 { font-size: 1.5rem; margin-bottom: var(--space-12); }
  h3 { font-size: 1.25rem; margin-bottom: var(--space-12); }
  h4 { font-size: 1.1rem; margin-bottom: var(--space-8); }
  
  p, li {
    font-size: 0.95rem;
    line-height: 1.6;
  }
  
  /* Pricing features list */
  .pricing-features {
    font-size: 0.9rem;
  }
  
  .pricing-features li {
    padding: 0.5rem 0;
  }
}

/* Extra small devices (phones in portrait) */
@media (max-width: 375px) {
  html {
    font-size: 13px;
  }
  
  .hero h1 {
    font-size: 1.75rem;
  }
  
  .btn {
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
  }
  
  .card {
    padding: var(--space-16);
  }
  
  .modal-content {
    width: 98%;
  }
  
  .results-summary-cards {
    grid-template-columns: 1fr;
  }
  
  /* Extra tight spacing */
  .container {
    padding: 0 var(--space-12);
  }
}

/* Fluid typography for all screen sizes */
@media (min-width: 320px) and (max-width: 1920px) {
  html {
    font-size: calc(14px + (16 - 14) * ((100vw - 320px) / (1920 - 320)));
  }
  
  h1 {
    font-size: clamp(1.75rem, 5vw, 4rem);
  }
  
  h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
  }
  
  h3 {
    font-size: clamp(1.25rem, 3vw, 1.875rem);
  }
  
  .container {
    padding-left: clamp(12px, 3vw, 48px);
    padding-right: clamp(12px, 3vw, 48px);
  }
}

/* Continuous responsive breakpoints */
@media (max-width: 480px) {
  /* Ensure everything fits on tiny screens */
  .hero h1,
  .feature-card h3,
  .pricing-card h3 {
    font-size: clamp(1.25rem, 4vw, 2rem) !important;
  }
  
  /* Stack everything */
  .hero-actions,
  .form-row,
  .nav-links {
    flex-direction: column !important;
  }
  
  /* Reduce all spacing */
  section {
    padding: var(--space-32) 0 !important;
  }
  
  /* Ensure buttons fit */
  .btn {
    width: 100% !important;
    font-size: clamp(0.875rem, 3vw, 1rem) !important;
  }
}

@media (max-width: 360px) {
  /* Ultra small devices (old phones) */
  .container {
    padding: 0 var(--space-8) !important;
  }
  
  .card,
  .feature-card,
  .pricing-card {
    padding: var(--space-12) !important;
  }
  
  .btn {
    padding: 0.5rem 0.75rem !important;
  }
}

/* Landscape orientation adjustments */
@media (max-height: 600px) and (orientation: landscape) {
  .hero {
    padding: 40px 0 30px;
  }
  
  .modal-content {
    max-height: 90vh;
    overflow-y: auto;
  }
  
  .modal-body {
    max-height: 50vh;
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets */
  .btn,
  .nav-link,
  .tab-btn {
    min-height: 44px;
    min-width: 44px;
  }
  
  /* Remove hover effects on touch devices */
  .btn:hover,
  .card:hover,
  .feature-card:hover {
    transform: none;
  }
  
  /* Better tap highlighting */
  a, button {
    -webkit-tap-highlight-color: rgba(30, 64, 175, 0.3);
  }
}

/* High resolution displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Optimize for retina displays */
  body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  .logo img {
    image-rendering: -webkit-optimize-contrast;
  }
}

/* Print styles */
@media print {
  .navbar,
  .footer,
  .btn,
  .modal,
  .partner-ad {
    display: none !important;
  }
  
  .page {
    display: block !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  * {
    box-shadow: none !important;
  }
}

/* ===========================================
   ACCESSIBILITY & UTILITY CLASSES
   =========================================== */

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Responsive utilities */
.hide-mobile {
  display: none !important;
}

@media (min-width: 768px) {
  .hide-mobile {
    display: block !important;
  }
  
  .hide-desktop {
    display: none !important;
  }
}

/* Responsive text alignment */
.text-center-mobile {
  text-align: center;
}

@media (min-width: 768px) {
  .text-center-mobile {
    text-align: left;
  }
}