/* ==========================================================================
   Design System Variables
   VocSeed - Digital Productivity. Career Intelligence.
   Light & Professional Aesthetic with Blue Primary
   ========================================================================== */

:root {
  /* ========== Color Palette ========== */

  /* Primary - White Background System */
  --color-primary: #ffffff;           /* Main background: pure white */
  --color-primary-light: #f8fafc;     /* Light gray-white */
  --color-primary-dark: #f1f5f9;      /* Slightly darker gray-white */

  /* Secondary - Light Blue Gray */
  --color-secondary: #e2e8f0;
  --color-secondary-light: #f1f5f9;
  --color-secondary-dark: #cbd5e1;

  /* Accent - VocSeed Blue */
  --color-accent: #2196F3;            /* Primary blue */
  --color-accent-light: #64B5F6;      /* Light blue */
  --color-accent-dark: #1976D2;       /* Dark blue */
  --color-accent-glow: rgba(33, 150, 243, 0.3);

  /* Accent Secondary - Golden Yellow (from logo decorative dots) */
  --color-accent-secondary: #FFC107;  /* Golden yellow */
  --color-accent-secondary-glow: rgba(255, 193, 7, 0.3);

  /* Accent Tertiary - Deep Blue */
  --color-accent-tertiary: #1565C0;
  --color-accent-tertiary-glow: rgba(21, 101, 192, 0.3);

  /* Neutrals */
  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray-50: #fafafa;
  --color-gray-100: #f5f5f7;
  --color-gray-200: #e8e8ed;
  --color-gray-300: #d1d1d6;
  --color-gray-400: #aeaeb2;
  --color-gray-500: #8e8e93;
  --color-gray-600: #636366;
  --color-gray-700: #48484a;
  --color-gray-800: #3a3a3c;
  --color-gray-900: #1c1c1e;

  /* Text Colors - Dark System */
  --color-text-primary: #1e293b;      /* Primary text: deep blue-gray */
  --color-text-secondary: #475569;    /* Secondary text */
  --color-text-muted: #94a3b8;        /* Muted text */

  /* Semantic Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #ffffff 0%, #e3f2fd 50%, #bbdefb 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  --gradient-accent-hover: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
  --gradient-card: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
  --gradient-text: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  --gradient-glow: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 70%);
  --gradient-gold: linear-gradient(135deg, var(--color-accent-secondary) 0%, #ffb300 100%);

  /* ========== Typography ========== */

  /* Font Families */
  --font-display: 'Clash Display', 'SF Pro Display', system-ui, sans-serif;
  --font-heading: 'Satoshi', 'SF Pro Display', system-ui, sans-serif;
  --font-body: 'Inter', 'SF Pro Text', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
  --font-chinese: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;

  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.925rem + 0.375vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.375rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.625rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.75rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
  --text-5xl: clamp(3rem, 2.25rem + 3.75vw, 5rem);
  --text-6xl: clamp(3.75rem, 2.75rem + 5vw, 6.5rem);
  --text-7xl: clamp(4.5rem, 3.25rem + 6.25vw, 8rem);

  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  --font-black: 900;

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;
  --leading-loose: 2;

  /* Letter Spacing */
  --tracking-tighter: -0.05em;
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /* ========== Spacing Scale ========== */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */
  --space-40: 10rem;    /* 160px */
  --space-48: 12rem;    /* 192px */
  --space-56: 14rem;    /* 224px */
  --space-64: 16rem;    /* 256px */

  /* Section Spacing */
  --section-padding-y: clamp(4rem, 8vw, 8rem);
  --section-padding-x: clamp(1rem, 5vw, 3rem);

  /* ========== Layout ========== */
  --container-xs: 480px;
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1440px;
  --container-max: 1600px;

  /* Grid */
  --grid-columns: 12;
  --grid-gap: clamp(1rem, 2vw, 2rem);

  /* ========== Borders & Radius ========== */
  --radius-none: 0;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --radius-full: 9999px;

  --border-width: 1px;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-color-hover: rgba(0, 0, 0, 0.15);
  --border-color-accent: rgba(33, 150, 243, 0.3);

  /* ========== Shadows ========== */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.15);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);

  /* Glow Shadows */
  --shadow-glow-accent: 0 0 30px var(--color-accent-glow);
  --shadow-glow-gold: 0 0 30px var(--color-accent-secondary-glow);
  --shadow-glow-blue: 0 0 30px var(--color-accent-tertiary-glow);

  /* Card Shadows */
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08), 0 0 1px rgba(0, 0, 0, 0.1);
  --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.12), 0 0 1px rgba(0, 0, 0, 0.15);

  /* ========== Transitions ========== */
  --duration-instant: 75ms;
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 700ms;
  --duration-slowest: 1000ms;

  /* Easing */
  --ease-linear: linear;
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-elastic: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-out-cubic: cubic-bezier(0.33, 1, 0.68, 1);

  /* ========== Z-Index Scale ========== */
  --z-below: -1;
  --z-base: 0;
  --z-raised: 10;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-tooltip: 600;
  --z-toast: 700;
  --z-max: 9999;

  /* ========== Glass Effect ========== */
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-bg-hover: rgba(255, 255, 255, 0.95);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-blur: blur(20px);

  /* ========== Navbar ========== */
  --navbar-height: 80px;
  --navbar-height-scrolled: 64px;
  --navbar-bg: transparent;
  --navbar-bg-scrolled: rgba(255, 255, 255, 0.95);
}
/* ==========================================================================
   Base Styles & CSS Reset
   VocSeed - Light Theme
   ========================================================================== */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* Import Clash Display and Satoshi from Fontshare (official source) */
@import url('https://api.fontshare.com/v2/css?f[]=clash-display@700,600,500&display=swap');
@import url('https://api.fontshare.com/v2/css?f[]=satoshi@700,500,400&display=swap');

/* Logo font style - matches VocSeed logo */
.logo-font {
  font-family: 'Clash Display', var(--font-display), sans-serif;
  font-style: italic;
  font-weight: 700;
  color: var(--color-accent);
}

/* ==========================================================================
   Modern CSS Reset
   ========================================================================== */

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

/* Prevent font size inflation */
html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  scroll-behavior: smooth;
}

/* Remove default margin and set core body defaults */
body {
  min-height: 100vh;
  line-height: var(--leading-normal);
  font-family: var(--font-body), var(--font-chinese);
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  color: var(--color-text-primary);
  background-color: var(--color-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Remove list styles on ul, ol with a list role */
ul[role='list'],
ol[role='list'] {
  list-style: none;
}

/* Set core link defaults */
a {
  color: inherit;
  text-decoration: none;
  text-decoration-skip-ink: auto;
}

/* Make images responsive */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Inherit fonts for inputs and buttons */
input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

/* Remove default button styles */
button {
  background: none;
  border: none;
  cursor: pointer;
}

/* Avoid text overflows */
p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

/* Remove animations for people who've turned them off */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Typography Base
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading), var(--font-chinese);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
}

h1 {
  font-family: var(--font-display), var(--font-chinese);
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-tighter);
}

h2 {
  font-size: var(--text-4xl);
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* Lead text */
.lead {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* Small text */
small,
.text-sm {
  font-size: var(--text-sm);
}

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

/* Links */
a:not([class]) {
  color: var(--color-accent);
  transition: color var(--duration-fast) var(--ease-out);
}

a:not([class]):hover {
  color: var(--color-accent-dark);
}

/* Strong emphasis */
strong,
b {
  font-weight: var(--font-semibold);
}

/* Code */
code,
kbd,
samp,
pre {
  font-family: var(--font-mono);
}

code {
  padding: var(--space-1) var(--space-2);
  background: var(--color-secondary-light);
  border-radius: var(--radius-sm);
  font-size: 0.9em;
  color: var(--color-accent-dark);
}

pre {
  padding: var(--space-4);
  background: var(--color-primary-dark);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

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

/* Blockquote */
blockquote {
  padding-left: var(--space-6);
  border-left: 4px solid var(--color-accent);
  font-style: italic;
  color: var(--color-text-secondary);
}

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

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ==========================================================================
   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;
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-3) var(--space-6);
  background: var(--color-accent);
  color: var(--color-white);
  font-weight: var(--font-semibold);
  text-decoration: none;
  border-radius: var(--radius-lg);
  z-index: var(--z-max);
  transition: top var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
  top: var(--space-4);
  outline: 2px solid var(--color-accent-dark);
  outline-offset: 2px;
}

/* Text alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Text colors */
.text-white { color: var(--color-white); }
.text-dark { color: var(--color-text-primary); }
.text-gray { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }
.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Font weights */
.font-light { font-weight: var(--font-light); }
.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

/* Display utility */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* Scrollbar styling - Light theme */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-primary-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--color-gray-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-400);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-gray-300) var(--color-primary-dark);
}
/* ==========================================================================
   Layout System
   ========================================================================== */

/* ==========================================================================
   Container
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--section-padding-x);
  padding-right: var(--section-padding-x);
}

.container--sm {
  max-width: var(--container-sm);
}

.container--md {
  max-width: var(--container-md);
}

.container--lg {
  max-width: var(--container-lg);
}

.container--xl {
  max-width: var(--container-xl);
}

.container--2xl {
  max-width: var(--container-2xl);
}

.container--full {
  max-width: 100%;
}

/* ==========================================================================
   Grid System
   ========================================================================== */

.grid {
  display: grid;
  gap: var(--grid-gap);
}

/* Column configurations */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

/* Auto-fit responsive grid */
.grid-auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-auto-fill {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* Gap utilities */
.gap-0 { gap: 0; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }
.gap-16 { gap: var(--space-16); }

/* Column span */
.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-5 { grid-column: span 5 / span 5; }
.col-span-6 { grid-column: span 6 / span 6; }
.col-span-full { grid-column: 1 / -1; }

/* ==========================================================================
   Flexbox Utilities
   ========================================================================== */

.flex { display: flex; }
.inline-flex { display: inline-flex; }

/* Direction */
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-row-reverse { flex-direction: row-reverse; }
.flex-col-reverse { flex-direction: column-reverse; }

/* Wrap */
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

/* Justify content */
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }

/* Align items */
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.items-stretch { align-items: stretch; }

/* Align self */
.self-auto { align-self: auto; }
.self-start { align-self: flex-start; }
.self-end { align-self: flex-end; }
.self-center { align-self: center; }
.self-stretch { align-self: stretch; }

/* Flex grow/shrink */
.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-initial { flex: 0 1 auto; }
.flex-none { flex: none; }
.grow { flex-grow: 1; }
.grow-0 { flex-grow: 0; }
.shrink { flex-shrink: 1; }
.shrink-0 { flex-shrink: 0; }

/* ==========================================================================
   Spacing Utilities
   ========================================================================== */

/* Margin */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }
.mt-20 { margin-top: var(--space-20); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-10 { margin-bottom: var(--space-10); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }
.mb-20 { margin-bottom: var(--space-20); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

/* Padding */
.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.p-10 { padding: var(--space-10); }
.p-12 { padding: var(--space-12); }

.px-0 { padding-left: 0; padding-right: 0; }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }
.py-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
.py-20 { padding-top: var(--space-20); padding-bottom: var(--space-20); }

/* ==========================================================================
   Width & Height
   ========================================================================== */

.w-full { width: 100%; }
.w-screen { width: 100vw; }
.w-auto { width: auto; }
.max-w-full { max-width: 100%; }
.max-w-screen { max-width: 100vw; }

.h-full { height: 100%; }
.h-screen { height: 100vh; }
.h-auto { height: auto; }
.min-h-screen { min-height: 100vh; }

/* ==========================================================================
   Position
   ========================================================================== */

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.static { position: static; }

.inset-0 { inset: 0; }
.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

/* ==========================================================================
   Z-Index
   ========================================================================== */

.z-0 { z-index: var(--z-base); }
.z-10 { z-index: var(--z-raised); }
.z-20 { z-index: var(--z-dropdown); }
.z-30 { z-index: var(--z-sticky); }
.z-40 { z-index: var(--z-overlay); }
.z-50 { z-index: var(--z-modal); }

/* ==========================================================================
   Overflow
   ========================================================================== */

.overflow-auto { overflow: auto; }
.overflow-hidden { overflow: hidden; }
.overflow-visible { overflow: visible; }
.overflow-scroll { overflow: scroll; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-hidden { overflow-y: hidden; }

/* ==========================================================================
   Display
   ========================================================================== */

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

/* ==========================================================================
   Visibility
   ========================================================================== */

.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* ==========================================================================
   Object Fit
   ========================================================================== */

.object-contain { object-fit: contain; }
.object-cover { object-fit: cover; }
.object-fill { object-fit: fill; }
.object-none { object-fit: none; }
.object-center { object-position: center; }

/* ==========================================================================
   Border Radius
   ========================================================================== */

.rounded-none { border-radius: var(--radius-none); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-3xl { border-radius: var(--radius-3xl); }
.rounded-full { border-radius: var(--radius-full); }

/* ==========================================================================
   Aspect Ratio
   ========================================================================== */

.aspect-auto { aspect-ratio: auto; }
.aspect-square { aspect-ratio: 1 / 1; }
.aspect-video { aspect-ratio: 16 / 9; }
.aspect-photo { aspect-ratio: 4 / 3; }

/* ==========================================================================
   Section Layouts
   ========================================================================== */

/* Two column layout with image */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.split-layout--reverse .split-layout__content {
  order: 2;
}

.split-layout--reverse .split-layout__media {
  order: 1;
}

.split-layout__content {
  max-width: 540px;
}

.split-layout__media {
  position: relative;
}

.split-layout__media img {
  width: 100%;
  border-radius: var(--radius-2xl);
}

/* Feature grid with icons */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
}

.feature-item {
  padding: var(--space-8);
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  transition: all var(--duration-normal) var(--ease-out);
}

.feature-item:hover {
  transform: translateY(-4px);
  border-color: var(--border-color-hover);
}

.feature-item__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  padding: var(--space-3);
  background: var(--glass-bg);
  border-radius: var(--radius-lg);
  color: var(--color-accent);
}

.feature-item:hover .feature-item__icon {
  background: var(--color-accent);
  color: var(--color-white);
}

.feature-item__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.feature-item__description {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
}

/* Masonry grid (CSS columns based) */
.masonry {
  column-count: 3;
  column-gap: var(--space-6);
}

.masonry > * {
  break-inside: avoid;
  margin-bottom: var(--space-6);
}

/* Bento grid layout */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, minmax(200px, auto));
  gap: var(--space-4);
}

.bento-item {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  transition: all var(--duration-normal) var(--ease-out);
}

.bento-item:hover {
  border-color: var(--border-color-hover);
}

.bento-item--large {
  grid-column: span 2;
  grid-row: span 2;
}

.bento-item--wide {
  grid-column: span 2;
}

.bento-item--tall {
  grid-row: span 2;
}
/* ==========================================================================
   Component Styles
   VocSeed - Light Theme Components
   ========================================================================== */

/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  background: var(--navbar-bg);
  backdrop-filter: blur(0);
  z-index: var(--z-sticky);
  transition: height var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out),
              backdrop-filter var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.navbar.scrolled {
  height: var(--navbar-height-scrolled);
  background: var(--navbar-bg-scrolled);
  backdrop-filter: var(--glass-blur);
  box-shadow: 0 1px 0 var(--border-color);
}

.navbar.navbar--hidden {
  transform: translateY(-100%);
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  text-decoration: none;
}

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

.navbar__menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.navbar__item {
  position: relative;
}

.navbar__link {
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--duration-fast) var(--ease-out);
}

.navbar__link:hover {
  color: var(--color-accent);
  background: rgba(33, 150, 243, 0.08);
}

.navbar__link.active {
  color: var(--color-accent);
}

.navbar__link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
  cursor: pointer;
  touch-action: manipulation;
}

.navbar__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-out);
}

/* Mobile Menu Overlay */
.navbar__overlay {
  display: none;
}

@media (max-width: 1023px) {
  .navbar__overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-out);
    z-index: calc(var(--z-modal) - 1);
  }

  .navbar.mobile-open .navbar__overlay {
    opacity: 1;
    visibility: visible;
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  line-height: 1;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  touch-action: manipulation;
  transition: transform var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.btn--primary {
  background: var(--gradient-accent);
  color: var(--color-white);
  box-shadow: 0 4px 15px var(--color-accent-glow);
}

.btn--primary:hover {
  background: var(--gradient-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--color-accent-glow);
}

.btn--secondary {
  background: var(--color-white);
  color: var(--color-text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn--secondary:hover {
  background: var(--color-primary-light);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-md);
}

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

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

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

.btn--ghost:hover {
  color: var(--color-accent);
  background: rgba(33, 150, 243, 0.08);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-xl);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn--icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-lg);
}

.btn svg {
  width: 20px;
  height: 20px;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

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

.card__image {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.card:hover .card__image img {
  transform: scale(1.05);
}

.card__content {
  padding: var(--space-6);
}

.card__tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-accent);
  background: rgba(33, 150, 243, 0.1);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.card__description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-color);
}

/* Product Card Variant */
.card--product {
  text-align: center;
}

.card--product .card__icon {
  width: 64px;
  height: 64px;
  margin: var(--space-6) auto var(--space-4);
  padding: var(--space-4);
  background: rgba(33, 150, 243, 0.1);
  border-radius: var(--radius-xl);
  color: var(--color-accent);
  transition: all var(--duration-normal) var(--ease-out);
}

.card--product:hover .card__icon {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-glow-accent);
}

/* Feature Card Variant */
.card--feature {
  padding: var(--space-8);
}

.card--feature .card__number {
  font-family: var(--font-display);
  font-size: var(--text-6xl);
  font-weight: var(--font-bold);
  color: var(--color-accent);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: var(--space-4);
}

/* Glow border effect */
.card--glow::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.card--glow:hover::before {
  opacity: 1;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-32) var(--space-8);
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero__background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__background::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.9) 0%,
    rgba(255, 255, 255, 0.7) 50%,
    var(--color-primary) 100%
  );
}

.hero__content {
  position: relative;
  max-width: var(--container-lg);
  text-align: center;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-accent);
  background: rgba(33, 150, 243, 0.1);
  border: 1px solid rgba(33, 150, 243, 0.2);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-6xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tighter);
  margin-bottom: var(--space-6);
  color: var(--color-accent);
}

.hero__title span {
  display: inline;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  max-width: 640px;
  margin: 0 auto var(--space-8);
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  animation: float 2s ease-in-out infinite;
}

.hero__scroll-icon {
  width: 24px;
  height: 40px;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-full);
  position: relative;
}

.hero__scroll-icon::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  animation: scrollIndicator 2s ease-in-out infinite;
}

/* ==========================================================================
   Section Components
   ========================================================================== */

.section {
  position: relative;
  padding: var(--section-padding-y) 0;
}

.section__header {
  max-width: var(--container-md);
  margin: 0 auto var(--space-16);
  text-align: center;
}

.section__label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  margin-bottom: var(--space-4);
}

.section__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.section__description {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   Stats / Counter
   ========================================================================== */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
}

.stat {
  text-align: center;
  padding: var(--space-8);
}

.stat__value {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat__value span {
  color: var(--color-accent);
}

.stat__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* ==========================================================================
   Timeline
   ========================================================================== */

.timeline {
  position: relative;
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: var(--space-8) 0;
}

.timeline__line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    180deg,
    transparent 0%,
    var(--color-accent) 10%,
    var(--color-accent) 90%,
    transparent 100%
  );
  transform-origin: top;
}

.timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  margin-bottom: var(--space-16);
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--duration-slow) var(--ease-out);
}

.timeline__item.revealed {
  opacity: 1;
  transform: translateY(0);
}

.timeline__item:nth-child(odd) .timeline__content {
  text-align: right;
  grid-column: 1;
}

.timeline__item:nth-child(odd) .timeline__media {
  grid-column: 2;
}

.timeline__item:nth-child(even) .timeline__content {
  grid-column: 2;
  grid-row: 1;
}

.timeline__item:nth-child(even) .timeline__media {
  grid-column: 1;
  grid-row: 1;
}

.timeline__dot {
  position: absolute;
  left: 50%;
  top: 0;
  width: 16px;
  height: 16px;
  background: var(--color-white);
  border: 3px solid var(--color-accent);
  border-radius: var(--radius-full);
  transform: translateX(-50%) scale(0);
  transition: transform var(--duration-normal) var(--ease-elastic);
  z-index: 1;
}

.timeline__dot.animate {
  transform: translateX(-50%) scale(1);
}

.timeline__dot::before {
  content: '';
  position: absolute;
  inset: -8px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-full);
  opacity: 0;
  animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.timeline__year {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.timeline__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

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

.timeline__media {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.timeline__media img {
  width: 100%;
  height: auto;
}

/* ==========================================================================
   Carousel
   ========================================================================== */

.carousel {
  position: relative;
  overflow: hidden;
}

.carousel__track {
  display: flex;
}

.carousel__slide {
  flex-shrink: 0;
  width: 100%;
}

.carousel__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  z-index: 10;
  box-shadow: var(--shadow-md);
}

.carousel__nav:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.carousel__nav--prev {
  left: var(--space-4);
}

.carousel__nav--next {
  right: var(--space-4);
}

.carousel__nav svg {
  width: 24px;
  height: 24px;
}

.carousel__pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.carousel__dot {
  width: 8px;
  height: 8px;
  background: var(--color-gray-300);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.carousel__dot.active,
.carousel__dot:hover {
  background: var(--color-accent);
  transform: scale(1.2);
}

/* Logo Carousel (Client logos) */
.logo-carousel {
  overflow: hidden;
  mask-image: linear-gradient(
    90deg,
    transparent 0%,
    black 10%,
    black 90%,
    transparent 100%
  );
}

.logo-carousel__track {
  display: flex;
  gap: var(--space-16);
  animation: marquee 30s linear infinite;
}

.logo-carousel__item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  opacity: 0.5;
  filter: grayscale(100%);
  transition: all var(--duration-fast) var(--ease-out);
}

.logo-carousel__item:hover {
  opacity: 1;
  filter: grayscale(0%);
}

.logo-carousel__item img {
  max-height: 100%;
  max-width: 150px;
}

/* ==========================================================================
   Form Components
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--duration-fast) var(--ease-out);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%231e293b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  background-size: 16px;
  padding-right: var(--space-12);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  position: relative;
  padding: var(--space-20) 0 var(--space-8);
  background: var(--color-primary-dark);
  border-top: 1px solid var(--border-color);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.footer__brand {
  max-width: 320px;
}

.footer__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
}

.footer__logo-img {
  width: auto;
  height: auto;
  max-width: 160px;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.footer__qrcode {
  margin-top: var(--space-4);
  display: flex;
  justify-content: center;
}

.footer__qrcode-img {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-md);
  object-fit: contain;
}

.footer__description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
  letter-spacing: 0.02em;
}

.footer__social {
  display: flex;
  gap: var(--space-3);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
}

.footer__social-link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.footer__column-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-6);
}

.footer__links {
  list-style: none;
}

.footer__link {
  display: block;
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__link:hover {
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-color);
}

.footer__copyright {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer__legal {
  display: flex;
  gap: var(--space-6);
}

.footer__legal-link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__legal-link:hover {
  color: var(--color-accent);
}

/* ==========================================================================
   Tabs
   ========================================================================== */

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--color-primary-dark);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-8);
}

.tab {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.tab:hover {
  color: var(--color-accent);
}

.tab.active {
  color: var(--color-white);
  background: var(--color-accent);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn var(--duration-normal) var(--ease-out);
}

/* ==========================================================================
   Accordion
   ========================================================================== */

.accordion {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-white);
}

.accordion__item {
  border-bottom: 1px solid var(--border-color);
}

.accordion__item:last-child {
  border-bottom: none;
}

.accordion__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background var(--duration-fast) var(--ease-out);
}

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

.accordion__icon {
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  transition: transform var(--duration-fast) var(--ease-out);
}

.accordion__item.active .accordion__icon {
  transform: rotate(180deg);
}

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out);
}

.accordion__item.active .accordion__content {
  max-height: 500px;
}

.accordion__body {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.modal.active {
  opacity: 1;
  visibility: visible;
  overscroll-behavior: contain;
}

.modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal__container {
  position: relative;
  max-width: var(--container-md);
  width: 100%;
  max-height: 90vh;
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transform: scale(0.95) translateY(20px);
  transition: transform var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-2xl);
}

.modal.active .modal__container {
  transform: scale(1) translateY(0);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-color);
}

.modal__title {
  font-size: var(--text-xl);
  color: var(--color-text-primary);
}

.modal__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-lg);
  transition: all var(--duration-fast) var(--ease-out);
}

.modal__close:hover {
  background: var(--color-primary-light);
  color: var(--color-text-primary);
}

.modal__body {
  padding: var(--space-6);
  overflow-y: auto;
  max-height: calc(90vh - 140px);
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-6);
  border-top: 1px solid var(--border-color);
}

/* ==========================================================================
   Tags / Pills
   ========================================================================== */

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background: var(--color-primary-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
}

.tag--accent {
  color: var(--color-accent);
  background: rgba(33, 150, 243, 0.1);
  border-color: rgba(33, 150, 243, 0.2);
}

.tag--gold {
  color: var(--color-accent-secondary);
  background: rgba(255, 193, 7, 0.1);
  border-color: rgba(255, 193, 7, 0.2);
}

.tag--blue {
  color: var(--color-accent-tertiary);
  background: rgba(21, 101, 192, 0.1);
  border-color: rgba(21, 101, 192, 0.2);
}

/* ==========================================================================
   Loading States
   ========================================================================== */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-primary-light) 25%,
    var(--color-primary-dark) 50%,
    var(--color-primary-light) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-primary-dark);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* ==========================================================================
   Page Loader
   ========================================================================== */

.page-loader {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  z-index: var(--z-max);
  opacity: 1;
  visibility: visible;
  transition: opacity var(--duration-slow) var(--ease-out),
              visibility var(--duration-slow) var(--ease-out);
}

.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.page-loader__logo {
  width: 64px;
  height: 64px;
  animation: pulse 1.5s ease-in-out infinite;
}

.page-loader__spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--color-primary-dark);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.page-loader__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
}

/* ==========================================================================
   Form Validation States
   ========================================================================== */

.form-group--error .form-input,
.form-group--error .form-textarea,
.form-group--error .form-select {
  border-color: var(--color-error);
}

.form-group--error .form-input:focus,
.form-group--error .form-textarea:focus,
.form-group--error .form-select:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-group--success .form-input,
.form-group--success .form-textarea,
.form-group--success .form-select {
  border-color: var(--color-success);
}

.form-group--success .form-input:focus,
.form-group--success .form-textarea:focus,
.form-group--success .form-select:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.form-error {
  display: none;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-error);
}

.form-group--error .form-error {
  display: block;
}

.form-helper {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Required field indicator */
.form-label--required::after {
  content: ' *';
  color: var(--color-error);
}

/* Form success message */
.form-success {
  text-align: center;
  padding: var(--space-12);
}

.form-success__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-6);
  color: var(--color-success);
}

.form-success h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.form-success p {
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Feature Grid
   ========================================================================== */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.feature-item {
  text-align: center;
  padding: var(--space-8);
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border-color);
  transition: all var(--duration-normal) var(--ease-out);
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-color-accent);
}

.feature-item__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  padding: var(--space-3);
  background: rgba(33, 150, 243, 0.1);
  border-radius: var(--radius-xl);
  color: var(--color-accent);
  transition: all var(--duration-normal) var(--ease-out);
}

.feature-item:hover .feature-item__icon {
  background: var(--color-accent);
  color: var(--color-white);
}

.feature-item__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
}

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

@media (max-width: 1023px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 639px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}
/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

/*
   Breakpoint Reference:
   - sm: 640px   (Mobile landscape)
   - md: 768px   (Tablet)
   - lg: 1024px  (Desktop)
   - xl: 1280px  (Large desktop)
   - 2xl: 1440px (Wide screens)
*/

/* ==========================================================================
   Mobile First - Base styles are mobile
   ========================================================================== */

/* Small devices (landscape phones, 640px and up) */
@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .sm\:flex-row { flex-direction: row; }
  .sm\:hidden { display: none; }
  .sm\:block { display: block; }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .md\:flex-row { flex-direction: row; }
  .md\:hidden { display: none; }
  .md\:block { display: block; }
  .md\:flex { display: flex; }

  .masonry {
    column-count: 2;
  }
}

/* Large devices (desktops, 1024px and up) */
@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .lg\:flex-row { flex-direction: row; }
  .lg\:hidden { display: none; }
  .lg\:block { display: block; }
  .lg\:flex { display: flex; }

  .masonry {
    column-count: 3;
  }
}

/* Extra large devices (large desktops, 1280px and up) */
@media (min-width: 1280px) {
  .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .xl\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .xl\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

/* ==========================================================================
   Component Responsive Overrides
   ========================================================================== */

/* Navigation - Mobile */
@media (max-width: 1023px) {
  .navbar {
    padding: 0 var(--space-4);
  }

  .navbar__toggle {
    display: flex;
  }

  .navbar__menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 320px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-20) var(--space-6) var(--space-6);
    background: var(--color-primary);
    border-left: 1px solid var(--border-color);
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-out);
    overflow-y: auto;
    z-index: var(--z-modal);
  }

  .navbar.mobile-open .navbar__menu {
    transform: translateX(0);
  }

  .navbar__item {
    opacity: 0;
    transform: translateX(20px);
    transition: all var(--duration-normal) var(--ease-out);
  }

  .navbar.mobile-open .navbar__item {
    opacity: 1;
    transform: translateX(0);
  }

  .navbar__link {
    display: block;
    padding: var(--space-4);
    font-size: var(--text-lg);
    border-radius: var(--radius-lg);
  }

  .navbar__link.active::after {
    display: none;
  }

  .navbar__actions {
    display: none;
  }

  /* Mobile menu toggle animation */
  .navbar.mobile-open .navbar__toggle span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .navbar.mobile-open .navbar__toggle span:nth-child(2) {
    opacity: 0;
  }

  .navbar.mobile-open .navbar__toggle span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}

/* Hero - Tablet and below */
@media (max-width: 1023px) {
  .hero {
    padding: var(--space-24) var(--space-4);
    min-height: auto;
  }

  .hero__title {
    font-size: var(--text-4xl);
  }

  .hero__description {
    font-size: var(--text-lg);
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .hero__scroll {
    display: none;
  }
}

/* Split layout - Tablet and below */
@media (max-width: 1023px) {
  .split-layout {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .split-layout--reverse .split-layout__content,
  .split-layout--reverse .split-layout__media {
    order: unset;
  }

  .split-layout__content {
    max-width: 100%;
    text-align: center;
  }
}

/* Timeline - Tablet and below */
@media (max-width: 1023px) {
  .timeline__line {
    left: 24px;
  }

  .timeline__item {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    padding-left: var(--space-16);
  }

  .timeline__item:nth-child(odd) .timeline__content,
  .timeline__item:nth-child(even) .timeline__content {
    grid-column: 1;
    text-align: left;
  }

  .timeline__item:nth-child(odd) .timeline__media,
  .timeline__item:nth-child(even) .timeline__media {
    grid-column: 1;
    grid-row: auto;
  }

  .timeline__dot {
    left: 24px;
  }
}

/* Footer - Tablet and below */
@media (max-width: 1023px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }

  .footer__brand {
    grid-column: span 2;
    max-width: 100%;
    text-align: center;
    margin-bottom: var(--space-4);
  }

  .footer__social {
    justify-content: center;
  }
}

/* Footer - Mobile */
@media (max-width: 639px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .footer__brand {
    grid-column: 1;
  }

  .footer__column {
    text-align: center;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .footer__legal {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* Cards grid - Mobile */
@media (max-width: 639px) {
  .grid-auto-fit,
  .grid-auto-fill {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }
}

/* Bento grid - Responsive */
@media (max-width: 1023px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .bento-item--large {
    grid-column: span 2;
    grid-row: span 1;
  }
}

@media (max-width: 639px) {
  .bento-grid {
    grid-template-columns: 1fr;
  }

  .bento-item--large,
  .bento-item--wide {
    grid-column: span 1;
  }
}

/* Stats - Mobile */
@media (max-width: 639px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat {
    padding: var(--space-4);
  }

  .stat__value {
    font-size: var(--text-3xl);
  }
}

/* Carousel navigation - Mobile */
@media (max-width: 639px) {
  .carousel__nav {
    width: 40px;
    height: 40px;
  }

  .carousel__nav--prev {
    left: var(--space-2);
  }

  .carousel__nav--next {
    right: var(--space-2);
  }
}

/* Tabs - Mobile */
@media (max-width: 639px) {
  .tabs {
    flex-direction: column;
  }

  .tab {
    width: 100%;
    text-align: center;
  }
}

/* Modal - Mobile */
@media (max-width: 639px) {
  .modal {
    padding: var(--space-2);
  }

  .modal__container {
    max-height: 95vh;
    border-radius: var(--radius-xl);
  }

  .modal__header,
  .modal__body,
  .modal__footer {
    padding: var(--space-4);
  }
}

/* Form - Mobile */
@media (max-width: 639px) {
  .form-input,
  .form-textarea,
  .form-select {
    padding: var(--space-3);
    font-size: var(--text-base);
  }
}

/* Section spacing - Mobile */
@media (max-width: 639px) {
  .section {
    padding: var(--space-16) 0;
  }

  .section__header {
    margin-bottom: var(--space-10);
  }

  .section__title {
    font-size: var(--text-3xl);
  }
}

/* ==========================================================================
   Utility Responsive Helpers
   ========================================================================== */

/* Text alignment responsive */
@media (max-width: 1023px) {
  .lg\:text-left { text-align: left; }
  .lg\:text-center { text-align: center; }
}

@media (max-width: 767px) {
  .md\:text-center { text-align: center; }
}

/* Spacing responsive overrides */
@media (max-width: 767px) {
  .md\:mb-8 { margin-bottom: var(--space-8); }
  .md\:mt-8 { margin-top: var(--space-8); }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  a,
  a:visited {
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
  }

  .navbar,
  .hero__scroll,
  .footer__social,
  .carousel__nav,
  .carousel__pagination {
    display: none !important;
  }

  .hero {
    min-height: auto;
    padding: 2rem 0;
  }

  .section {
    padding: 2rem 0;
    page-break-inside: avoid;
  }

  img {
    max-width: 100% !important;
  }
}

/* ==========================================================================
   High Contrast Mode
   ========================================================================== */

@media (prefers-contrast: high) {
  :root {
    --border-color: rgba(0, 0, 0, 0.3);
    --border-color-hover: rgba(0, 0, 0, 0.5);
  }

  .btn--primary {
    border: 2px solid var(--color-accent-dark);
  }

  .card {
    border-width: 2px;
  }

  .navbar__link {
    border: 1px solid transparent;
  }

  .navbar__link:focus,
  .navbar__link:hover {
    border-color: var(--color-accent);
  }
}

/* ==========================================================================
   Theme Note
   VocSeed uses a light theme by default.
   ========================================================================== */