: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;
}

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--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%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
}

@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 */
/* Custom romantic theme variables */
:root {
  /* Midnight Romance Theme */
  --bg-primary: #0B0C10;
  --text-primary: #FF6F91;
  --accent-purple: #C77DFF;
  --accent-blue: #5DE2E7;
  --white: #ffffff;
  --glow-pink: rgba(255, 111, 145, 0.6);
  --glow-purple: rgba(199, 125, 255, 0.6);
  --glow-blue: rgba(93, 226, 231, 0.6);
  
  /* Light theme colors */
  --bg-light: #FFF5F8;
  --text-light: #E91E63;
  --accent-light: #F8BBD9;
  --secondary-light: #FCE4EC;
}

/* Light theme */
[data-theme="light"] {
  --bg-primary: var(--bg-light);
  --text-primary: var(--text-light);
  --accent-purple: var(--accent-light);
  --accent-blue: var(--accent-light);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 12, 16, 0.95);
  backdrop-filter: blur(10px);
  padding: 15px 0;
  border-bottom: 1px solid var(--accent-purple);
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  align-items: center;
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--accent-purple);
  text-shadow: 0 0 10px var(--glow-purple);
}

.theme-toggle {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: 2px solid var(--accent-purple);
  border-radius: 50%;
  width: 45px;
  height: 45px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  box-shadow: 0 0 15px var(--glow-purple);
  transform: translateY(-50%) scale(1.1);
}

.theme-icon {
  font-size: 20px;
  color: var(--accent-purple);
}

/* Floating Music Player */
.floating-music-player {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 999;
  background: rgba(11, 12, 16, 0.9);
  border: 2px solid var(--accent-purple);
  border-radius: 15px;
  padding: 10px 15px;
  display: flex;
  align-items: center;
  gap: 10px;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 20px var(--glow-purple);
}

.music-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 20px;
  animation: heartbeat 2s infinite;
}

@keyframes heartbeat {
  0%, 50%, 100% { transform: scale(1); }
  25%, 75% { transform: scale(1.2); }
}

.music-info {
  color: var(--text-primary);
  font-size: 12px;
  white-space: nowrap;
}

/* Section Styling */
.section {
  min-height: 100vh;
  padding: 100px 0 50px;
  position: relative;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 50px;
  text-shadow: 0 0 20px var(--glow-pink);
  animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
  from { text-shadow: 0 0 20px var(--glow-pink); }
  to { text-shadow: 0 0 30px var(--glow-pink), 0 0 40px var(--glow-pink); }
}

/* Intro Section */
.intro-section {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(circle at center, rgba(199, 125, 255, 0.1) 0%, var(--bg-primary) 70%);
  position: relative;
  overflow: hidden;
}

.main-title {
  font-size: 3.5rem;
  margin-bottom: 30px;
  opacity: 0;
  animation: fadeInUp 2s ease forwards;
  background: linear-gradient(45deg, var(--text-primary), var(--accent-purple), var(--accent-blue));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: none;
}

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

.typewriter {
  font-size: 1.5rem;
  margin-bottom: 40px;
  min-height: 60px;
  opacity: 0;
  animation: fadeIn 1s ease forwards 2s;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

.explore-btn {
  background: linear-gradient(45deg, var(--accent-purple), var(--accent-blue));
  color: white;
  border: none;
  padding: 15px 30px;
  border-radius: 25px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0 20px var(--glow-purple);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.explore-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 0 30px var(--glow-purple);
}

/* Sparkles Canvas */
.sparkles-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

#sparkles-canvas {
  width: 100%;
  height: 100%;
}

/* Floating Hearts */
#floating-hearts {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.floating-heart {
  position: absolute;
  color: var(--text-primary);
  font-size: 20px;
  animation: floatUp 6s linear infinite;
  opacity: 0.7;
}

@keyframes floatUp {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.7;
  }
  90% {
    opacity: 0.7;
  }
  100% {
    transform: translateY(-100px) rotate(360deg);
    opacity: 0;
  }
}

/* Gallery Section */
.gallery-section {
  background: linear-gradient(135deg, rgba(93, 226, 231, 0.05) 0%, rgba(199, 125, 255, 0.05) 100%);
}

.gallery-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 0 30px var(--glow-purple);
}

.slider-container {
  position: relative;
  height: 500px;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide.active {
  opacity: 1;
}

.slide-content {
  text-align: center;
  color: white;
}

.placeholder-image {
  width: 400px;
  height: 300px;
  background: linear-gradient(45deg, var(--accent-purple), var(--accent-blue));
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  margin: 0 auto 20px;
  box-shadow: 0 0 25px var(--glow-purple);
}

.slide-caption {
  font-size: 1.2rem;
  margin-top: 20px;
  text-shadow: 0 0 10px var(--glow-pink);
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(199, 125, 255, 0.8);
  color: white;
  border: none;
  padding: 15px 20px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  transition: all 0.3s ease;
  z-index: 10;
}

.prev-btn {
  left: 20px;
}

.next-btn {
  right: 20px;
}

.slider-btn:hover {
  background: var(--accent-purple);
  box-shadow: 0 0 15px var(--glow-purple);
}

.slider-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot.active {
  background: var(--accent-purple);
  box-shadow: 0 0 10px var(--glow-purple);
}

/* Timeline Section */
.timeline-section {
  background: rgba(11, 12, 16, 0.95);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent-purple), var(--accent-blue));
  box-shadow: 0 0 10px var(--glow-purple);
}

.timeline-item {
  position: relative;
  margin: 50px 0;
  opacity: 0;
  animation: slideInTimeline 1s ease forwards;
}

.timeline-item:nth-child(even) {
  animation-delay: 0.2s;
}

.timeline-item:nth-child(odd) {
  animation-delay: 0.4s;
}

@keyframes slideInTimeline {
  to {
    opacity: 1;
    transform: translateY(0);
  }
  from {
    opacity: 0;
    transform: translateY(30px);
  }
}

.timeline-date {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-purple);
  color: white;
  padding: 10px 20px;
  border-radius: 20px;
  font-weight: bold;
  box-shadow: 0 0 15px var(--glow-purple);
  z-index: 10;
}

.timeline-content {
  background: rgba(199, 125, 255, 0.1);
  border: 2px solid var(--accent-purple);
  border-radius: 15px;
  padding: 30px;
  margin-top: 30px;
  backdrop-filter: blur(5px);
  position: relative;
}

.timeline-content h3 {
  color: var(--accent-purple);
  margin-bottom: 15px;
  font-size: 1.5rem;
}

.memory-hearts {
  position: absolute;
  top: -10px;
  right: -10px;
  width: 30px;
  height: 30px;
}

.memory-hearts::before {
  content: '💕';
  font-size: 20px;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 60%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  80% { transform: translateY(-5px); }
}

/* Constellation Section */
.constellation-section {
  background: radial-gradient(circle at center, rgba(93, 226, 231, 0.1) 0%, var(--bg-primary) 70%);
  min-height: 80vh;
}

.constellation-container {
  position: relative;
  height: 600px;
  border-radius: 20px;
  overflow: hidden;
  border: 2px solid var(--accent-blue);
  box-shadow: 0 0 30px var(--glow-blue);
}

#constellation-canvas {
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, #000011 0%, #001122 100%);
}

/* Games Section */
.games-section {
  background: linear-gradient(135deg, rgba(199, 125, 255, 0.05) 0%, rgba(255, 111, 145, 0.05) 100%);
}

.game-card {
  background: rgba(199, 125, 255, 0.1);
  border: 2px solid var(--accent-purple);
  border-radius: 20px;
  padding: 30px;
  margin: 30px 0;
  backdrop-filter: blur(5px);
  box-shadow: 0 0 20px var(--glow-purple);
}

.game-card h3 {
  text-align: center;
  color: var(--accent-purple);
  margin-bottom: 25px;
  font-size: 1.8rem;
}

/* Love Calculator */
.love-calculator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.love-calculator input {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid var(--accent-purple);
  border-radius: 10px;
  padding: 12px 20px;
  color: var(--text-primary);
  font-size: 1.1rem;
  text-align: center;
  width: 200px;
}

.love-calculator input::placeholder {
  color: rgba(255, 111, 145, 0.7);
}

.plus-sign {
  font-size: 2rem;
  color: var(--accent-purple);
  font-weight: bold;
}

.calc-btn {
  background: linear-gradient(45deg, var(--accent-purple), var(--accent-blue));
  color: white;
  border: none;
  padding: 12px 25px;
  border-radius: 25px;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 0 15px var(--glow-purple);
}

.calc-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 25px var(--glow-purple);
}

.love-result {
  font-size: 2rem;
  font-weight: bold;
  text-align: center;
  margin-top: 20px;
  opacity: 0;
  transform: scale(0);
  transition: all 0.5s ease;
}

.love-result.show {
  opacity: 1;
  transform: scale(1);
}

/* Heart Game */
.heart-game {
  text-align: center;
}

.game-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

#start-game {
  background: var(--accent-purple);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 15px;
  cursor: pointer;
  transition: all 0.3s ease;
}

#start-game:hover {
  box-shadow: 0 0 15px var(--glow-purple);
}

#heart-game-canvas {
  border: 2px solid var(--accent-purple);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.3);
  width: 100%;
  height: 300px;
}

.game-message {
  margin-top: 15px;
  font-size: 1.2rem;
  font-weight: bold;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.game-message.show {
  opacity: 1;
}

/* Stone Crusher */
.crusher-game {
  text-align: center;
}

.stone-block {
  width: 200px;
  height: 200px;
  background: linear-gradient(45deg, #666, #999);
  border-radius: 10px;
  margin: 20px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
  font-weight: bold;
  color: white;
}

.stone-block:hover {
  transform: scale(1.05);
}

.stone-block.breaking {
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.crusher-message {
  margin-top: 20px;
  font-size: 1.3rem;
  font-weight: bold;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.crusher-message.show {
  opacity: 1;
}

/* Anniversary Section */
.anniversary-section {
  background: radial-gradient(circle at center, rgba(199, 125, 255, 0.15) 0%, var(--bg-primary) 70%);
}

.celebration-card {
  background: rgba(255, 111, 145, 0.1);
  border: 2px solid var(--text-primary);
  border-radius: 20px;
  padding: 40px;
  text-align: center;
  position: relative;
  box-shadow: 0 0 30px var(--glow-pink);
}

.countdown-timer {
  margin-bottom: 30px;
}

.timer-display {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.time-unit {
  background: rgba(199, 125, 255, 0.2);
  border: 2px solid var(--accent-purple);
  border-radius: 15px;
  padding: 20px;
  min-width: 100px;
}

.time-unit span {
  display: block;
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--accent-purple);
}

.time-unit label {
  font-size: 1rem;
  color: var(--text-primary);
}

.celebration-message {
  font-size: 1.5rem;
  margin: 30px 0;
  text-shadow: 0 0 10px var(--glow-pink);
}

#fireworks-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  border-radius: 20px;
}

/* Diary Section */
.diary-section {
  background: linear-gradient(135deg, rgba(93, 226, 231, 0.05) 0%, rgba(255, 111, 145, 0.05) 100%);
}

.diary-card {
  background: rgba(199, 125, 255, 0.1);
  border: 2px solid var(--accent-purple);
  border-radius: 20px;
  padding: 30px;
  margin: 30px 0;
  backdrop-filter: blur(5px);
  box-shadow: 0 0 20px var(--glow-purple);
}

.diary-card h3 {
  text-align: center;
  color: var(--accent-purple);
  margin-bottom: 25px;
  font-size: 1.5rem;
}

/* Quote Display */
.quote-display {
  text-align: center;
}

.love-quote {
  font-size: 1.3rem;
  font-style: italic;
  margin: 20px 0;
  padding: 20px;
  background: rgba(255, 111, 145, 0.1);
  border-radius: 15px;
  border-left: 4px solid var(--text-primary);
  text-shadow: 0 0 10px var(--glow-pink);
}

.new-quote-btn {
  background: var(--text-primary);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 15px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.new-quote-btn:hover {
  box-shadow: 0 0 15px var(--glow-pink);
  transform: scale(1.05);
}

/* Diary Input */
.diary-input {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

#new-note {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid var(--accent-purple);
  border-radius: 10px;
  padding: 15px;
  color: var(--text-primary);
  font-size: 1rem;
  resize: vertical;
  min-height: 100px;
  font-family: Arial, sans-serif;
}

#new-note::placeholder {
  color: rgba(255, 111, 145, 0.7);
}

.add-note-btn {
  background: linear-gradient(45deg, var(--accent-purple), var(--text-primary));
  color: white;
  border: none;
  padding: 12px 25px;
  border-radius: 15px;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  align-self: flex-start;
}

.add-note-btn:hover {
  box-shadow: 0 0 20px var(--glow-purple);
  transform: scale(1.05);
}

/* Notes Container */
.notes-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 25px;
}

.note-card {
  background: rgba(255, 111, 145, 0.15);
  border: 2px solid var(--text-primary);
  border-radius: 15px;
  padding: 20px;
  position: relative;
  transform: rotate(-2deg);
  transition: all 0.3s ease;
  box-shadow: 0 0 15px var(--glow-pink);
}

.note-card:nth-child(even) {
  transform: rotate(2deg);
}

.note-card:hover {
  transform: rotate(0deg) scale(1.05);
  z-index: 10;
}

.note-card::before {
  content: '💕';
  position: absolute;
  top: -10px;
  right: -10px;
  font-size: 20px;
  animation: heartbeat 2s infinite;
}

/* Wish Jar */
.wish-jar {
  width: 200px;
  height: 200px;
  background: linear-gradient(to bottom, rgba(93, 226, 231, 0.3), rgba(199, 125, 255, 0.3));
  border: 3px solid var(--accent-blue);
  border-radius: 50% 50% 60% 60%;
  margin: 20px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease;
  text-align: center;
  font-weight: bold;
}

.wish-jar:hover {
  transform: scale(1.1);
  box-shadow: 0 0 30px var(--glow-blue);
}

.jar-glow {
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border-radius: 50% 50% 60% 60%;
  background: linear-gradient(45deg, var(--accent-blue), var(--accent-purple));
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.wish-jar:hover .jar-glow {
  opacity: 0.3;
}

.wishes-display {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 20px;
}

.wish-item {
  background: rgba(93, 226, 231, 0.2);
  border: 1px solid var(--accent-blue);
  border-radius: 20px;
  padding: 8px 15px;
  font-size: 0.9rem;
  opacity: 0;
  animation: wishFloat 1s ease forwards;
}

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

/* Compliment Display */
.compliment-display {
  text-align: center;
}

.compliment-text {
  font-size: 1.4rem;
  font-weight: bold;
  margin: 20px 0;
  padding: 20px;
  background: rgba(93, 226, 231, 0.1);
  border-radius: 15px;
  border: 2px solid var(--accent-blue);
  text-shadow: 0 0 10px var(--glow-blue);
}

.compliment-btn {
  background: var(--accent-blue);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 15px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.compliment-btn:hover {
  box-shadow: 0 0 15px var(--glow-blue);
  transform: scale(1.05);
}

/* Chat Section */
.chat-section {
  background: rgba(11, 12, 16, 0.95);
}

.chat-container {
  max-width: 600px;
  margin: 0 auto;
  background: rgba(199, 125, 255, 0.1);
  border: 2px solid var(--accent-purple);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: blur(5px);
  box-shadow: 0 0 30px var(--glow-purple);
}

.chat-messages {
  height: 400px;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.chat-message {
  max-width: 70%;
  padding: 12px 18px;
  border-radius: 18px;
  position: relative;
  animation: messageSlide 0.5s ease;
}

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

.chat-message.user {
  background: var(--accent-purple);
  color: white;
  align-self: flex-end;
  border-bottom-right-radius: 6px;
}

.chat-message.bot {
  background: rgba(255, 111, 145, 0.2);
  color: var(--text-primary);
  align-self: flex-start;
  border-bottom-left-radius: 6px;
  border: 1px solid var(--text-primary);
}

.chat-message::before {
  content: '💕';
  position: absolute;
  top: -8px;
  right: -8px;
  font-size: 12px;
}

.chat-input {
  display: flex;
  padding: 20px;
  gap: 10px;
  border-top: 1px solid var(--accent-purple);
}

#chat-text {
  flex: 1;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid var(--accent-purple);
  border-radius: 20px;
  padding: 12px 18px;
  color: var(--text-primary);
  font-size: 1rem;
}

#chat-text::placeholder {
  color: rgba(255, 111, 145, 0.7);
}

.send-btn {
  background: var(--text-primary);
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.send-btn:hover {
  box-shadow: 0 0 15px var(--glow-pink);
  transform: scale(1.05);
}

/* Progress Section */
.progress-section {
  background: linear-gradient(135deg, rgba(93, 226, 231, 0.1) 0%, rgba(199, 125, 255, 0.1) 100%);
}

.love-progress-container {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.progress-bar {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid var(--accent-purple);
  border-radius: 25px;
  height: 30px;
  overflow: hidden;
  margin: 30px 0;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(45deg, var(--text-primary), var(--accent-purple), var(--accent-blue));
  width: 0%;
  border-radius: 25px;
  animation: fillProgress 3s ease-in-out infinite;
  box-shadow: 0 0 20px var(--glow-purple);
}

@keyframes fillProgress {
  0%, 100% { width: 95%; }
  50% { width: 100%; }
}

.progress-text {
  font-size: 1.3rem;
  font-weight: bold;
  text-shadow: 0 0 10px var(--glow-pink);
}

/* Secret Section */
.secret-section {
  background: rgba(11, 12, 16, 0.98);
}

.secret-game {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.hint {
  color: var(--accent-blue);
  font-style: italic;
  margin-bottom: 30px;
}

.secret-display {
  font-size: 2rem;
  font-weight: bold;
  margin: 30px 0;
  min-height: 60px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

.secret-key {
  background: var(--accent-purple);
  color: white;
  padding: 10px 15px;
  border-radius: 10px;
  margin: 0 5px;
  box-shadow: 0 0 10px var(--glow-purple);
  animation: keyGlow 1s ease;
}

@keyframes keyGlow {
  from { transform: scale(0); }
  to { transform: scale(1); }
}

.secret-message {
  background: rgba(255, 111, 145, 0.15);
  border: 2px solid var(--text-primary);
  border-radius: 20px;
  padding: 40px;
  margin-top: 30px;
  box-shadow: 0 0 30px var(--glow-pink);
  animation: revealMessage 1s ease;
}

@keyframes revealMessage {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Surprise Section */
.surprise-section {
  background: radial-gradient(circle at center, rgba(255, 111, 145, 0.2) 0%, var(--bg-primary) 70%);
}

.gift-container {
  max-width: 800px;
  margin: 0 auto;
}

.love-letter {
  background: rgba(199, 125, 255, 0.1);
  border: 2px solid var(--accent-purple);
  border-radius: 20px;
  padding: 40px;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 40px var(--glow-purple);
}

.gift-card {
  background: linear-gradient(45deg, var(--accent-purple), var(--accent-blue));
  color: white;
  padding: 30px;
  border-radius: 15px;
  margin: 30px 0;
  text-align: center;
  box-shadow: 0 0 25px var(--glow-purple);
}

.gift-card h4 {
  font-size: 1.8rem;
  margin-bottom: 20px;
}

.love-poem {
  margin-top: 30px;
  text-align: center;
}

.love-poem h4 {
  color: var(--text-primary);
  margin-bottom: 20px;
}

.poem-text {
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1.8;
  text-shadow: 0 0 10px var(--glow-pink);
}

/* Final Section */
.finale-section {
  background: radial-gradient(circle at center, rgba(93, 226, 231, 0.15) 0%, var(--bg-primary) 70%);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.final-letter {
  background: rgba(255, 111, 145, 0.1);
  border: 3px solid var(--text-primary);
  border-radius: 25px;
  padding: 50px;
  text-align: center;
  box-shadow: 0 0 40px var(--glow-pink);
  backdrop-filter: blur(10px);
}

.final-message {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 30px;
  text-shadow: 0 0 20px var(--glow-pink);
  background: linear-gradient(45deg, var(--text-primary), var(--accent-purple));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.letter-text {
  font-size: 1.2rem;
  line-height: 1.8;
  margin-bottom: 30px;
  text-shadow: 0 0 10px var(--glow-pink);
}

.signature {
  font-size: 1.3rem;
  font-style: italic;
  color: var(--accent-purple);
  text-shadow: 0 0 15px var(--glow-purple);
}

/* Footer */
.main-footer {
  background: rgba(11, 12, 16, 0.95);
  padding: 30px 0;
  text-align: center;
  border-top: 2px solid var(--accent-purple);
  position: relative;
}

.hidden-heart {
  position: absolute;
  bottom: 10px;
  right: 30px;
  font-size: 30px;
  cursor: pointer;
  transition: all 0.3s ease;
  animation: heartPulse 2s infinite;
}

@keyframes heartPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

.hidden-heart:hover {
  transform: scale(1.3);
  text-shadow: 0 0 20px var(--glow-pink);
}

/* Heart Particles Canvas */
#heart-particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  backdrop-filter: blur(5px);
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: var(--bg-primary);
  border: 2px solid var(--accent-purple);
  border-radius: 20px;
  padding: 40px;
  text-align: center;
  box-shadow: 0 0 30px var(--glow-purple);
  max-width: 400px;
  width: 90%;
}

.modal-content h3 {
  color: var(--accent-purple);
  margin-bottom: 25px;
}

#password-input {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid var(--accent-purple);
  border-radius: 10px;
  padding: 12px 20px;
  color: var(--text-primary);
  font-size: 1.1rem;
  text-align: center;
  width: 100%;
  margin-bottom: 20px;
}

.modal-btn {
  background: var(--accent-purple);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 10px;
  cursor: pointer;
  margin: 0 10px;
  transition: all 0.3s ease;
}

.modal-btn:hover {
  box-shadow: 0 0 15px var(--glow-purple);
}

.modal-btn.secondary {
  background: transparent;
  border: 2px solid var(--accent-purple);
  color: var(--accent-purple);
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.show {
  display: block !important;
}

/* Responsive Design */
@media (max-width: 768px) {
  .main-title {
    font-size: 2.5rem;
  }
  
  .typewriter {
    font-size: 1.2rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .nav-links {
    gap: 15px;
  }
  
  .nav-link {
    font-size: 0.9rem;
  }
  
  .placeholder-image {
    width: 300px;
    height: 200px;
    font-size: 1.2rem;
  }
  
  .timer-display {
    gap: 15px;
  }
  
  .time-unit {
    min-width: 80px;
    padding: 15px;
  }
  
  .time-unit span {
    font-size: 2rem;
  }
  
  .love-calculator {
    flex-direction: column;
  }
  
  .love-calculator input {
    width: 250px;
  }
  
  .timeline::before {
    left: 30px;
  }
  
  .timeline-content {
    margin-left: 60px;
  }
  
  .timeline-date {
    left: 30px;
    transform: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  .section {
    padding: 80px 0 30px;
  }
  
  .main-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .placeholder-image {
    width: 250px;
    height: 180px;
    font-size: 1rem;
  }
  
  .game-card {
    padding: 20px;
  }
  
  .timer-display {
    flex-direction: column;
    align-items: center;
  }
  
  .final-message {
    font-size: 1.5rem;
  }
  
  .letter-text {
    font-size: 1rem;
  }
}