/* ============================================
   ADVANCED DESIGN SYSTEM
   Universal Landing Page Generator
   ============================================ */

/* ==========================================
   1. DESIGN TOKENS
   ========================================== */

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

  /* Primary Colors */
  --color-primary-50: #f0f4ff;
  --color-primary-100: #e0e7ff;
  --color-primary-200: #c7d2fe;
  --color-primary-300: #a5b4fc;
  --color-primary-400: #818cf8;
  --color-primary-500: #6366f1;
  --color-primary-600: #4f46e5;
  --color-primary-700: #4338ca;
  --color-primary-800: #3730a3;
  --color-primary-900: #312e81;

  /* Secondary Colors */
  --color-secondary-50: #fdf4ff;
  --color-secondary-100: #fae8ff;
  --color-secondary-200: #f5d0fe;
  --color-secondary-300: #f0abfc;
  --color-secondary-400: #e879f9;
  --color-secondary-500: #d946ef;
  --color-secondary-600: #c026d3;
  --color-secondary-700: #a21caf;
  --color-secondary-800: #86198f;
  --color-secondary-900: #701a75;

  /* Accent Colors */
  --color-accent-50: #fff7ed;
  --color-accent-100: #ffedd5;
  --color-accent-200: #fed7aa;
  --color-accent-300: #fdba74;
  --color-accent-400: #fb923c;
  --color-accent-500: #f97316;
  --color-accent-600: #ea580c;
  --color-accent-700: #c2410c;
  --color-accent-800: #9a3412;
  --color-accent-900: #7c2d12;

  /* Neutral Colors */
  --color-neutral-50: #fafafa;
  --color-neutral-100: #f5f5f5;
  --color-neutral-200: #e5e5e5;
  --color-neutral-300: #d4d4d4;
  --color-neutral-400: #a3a3a3;
  --color-neutral-500: #737373;
  --color-neutral-600: #525252;
  --color-neutral-700: #404040;
  --color-neutral-800: #262626;
  --color-neutral-900: #171717;

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

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

  /* Font Families */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Poppins', 'Inter', sans-serif;
  --font-mono: 'Fira Code', 'Consolas', monospace;

  /* Font Sizes */
  --text-xs: 0.75rem; /* 12px */
  --text-sm: 0.875rem; /* 14px */
  --text-base: 1rem; /* 16px */
  --text-lg: 1.125rem; /* 18px */
  --text-xl: 1.25rem; /* 20px */
  --text-2xl: 1.5rem; /* 24px */
  --text-3xl: 1.875rem; /* 30px */
  --text-4xl: 2.25rem; /* 36px */
  --text-5xl: 3rem; /* 48px */
  --text-6xl: 3.75rem; /* 60px */
  --text-7xl: 4.5rem; /* 72px */
  --text-8xl: 6rem; /* 96px */
  --text-9xl: 8rem; /* 128px */

  /* Font Weights */
  --font-thin: 100;
  --font-extralight: 200;
  --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: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --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-px: 1px;
  --space-0-5: 0.125rem; /* 2px */
  --space-1: 0.25rem; /* 4px */
  --space-1-5: 0.375rem; /* 6px */
  --space-2: 0.5rem; /* 8px */
  --space-2-5: 0.625rem; /* 10px */
  --space-3: 0.75rem; /* 12px */
  --space-3-5: 0.875rem; /* 14px */
  --space-4: 1rem; /* 16px */
  --space-5: 1.25rem; /* 20px */
  --space-6: 1.5rem; /* 24px */
  --space-7: 1.75rem; /* 28px */
  --space-8: 2rem; /* 32px */
  --space-9: 2.25rem; /* 36px */
  --space-10: 2.5rem; /* 40px */
  --space-11: 2.75rem; /* 44px */
  --space-12: 3rem; /* 48px */
  --space-14: 3.5rem; /* 56px */
  --space-16: 4rem; /* 64px */
  --space-20: 5rem; /* 80px */
  --space-24: 6rem; /* 96px */
  --space-28: 7rem; /* 112px */
  --space-32: 8rem; /* 128px */
  --space-36: 9rem; /* 144px */
  --space-40: 10rem; /* 160px */
  --space-44: 11rem; /* 176px */
  --space-48: 12rem; /* 192px */
  --space-52: 13rem; /* 208px */
  --space-56: 14rem; /* 224px */
  --space-60: 15rem; /* 240px */
  --space-64: 16rem; /* 256px */
  --space-72: 18rem; /* 288px */
  --space-80: 20rem; /* 320px */
  --space-96: 24rem; /* 384px */

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

  --radius-none: 0;
  --radius-sm: 0.125rem; /* 2px */
  --radius-base: 0.25rem; /* 4px */
  --radius-md: 0.375rem; /* 6px */
  --radius-lg: 0.5rem; /* 8px */
  --radius-xl: 0.75rem; /* 12px */
  --radius-2xl: 1rem; /* 16px */
  --radius-3xl: 1.5rem; /* 24px */
  --radius-4xl: 2rem; /* 32px */
  --radius-full: 9999px;

  /* === Shadows (Elevation) === */

  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-base: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-2xl: 0 35px 60px -15px rgb(0 0 0 / 0.3);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);

  /* Colored Shadows */
  --shadow-primary: 0 10px 40px -10px var(--color-primary-500);
  --shadow-secondary: 0 10px 40px -10px var(--color-secondary-500);
  --shadow-accent: 0 10px 40px -10px var(--color-accent-500);

  /* === Transitions === */

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Easing Functions */
  --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);

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

  --z-0: 0;
  --z-10: 10;
  --z-20: 20;
  --z-30: 30;
  --z-40: 40;
  --z-50: 50;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;

  /* === Gradients === */

  --gradient-primary: var(--color-primary-500);
  --gradient-secondary: var(--color-secondary-500);
  --gradient-accent: var(--color-accent-500);
  --gradient-rainbow: #3b82f6;
  --gradient-sunset: #f59e0b;
  --gradient-ocean: #3b82f6;
  --gradient-fire: #ef4444;
  --gradient-ice: #3b82f6;

  /* Mesh Gradients */
  --gradient-mesh-1:
    radial-gradient(at 40% 20%, hsla(28, 100%, 74%, 1) 0px, transparent 50%),
    radial-gradient(at 80% 0%, hsla(189, 100%, 56%, 1) 0px, transparent 50%),
    radial-gradient(at 0% 50%, hsla(355, 100%, 93%, 1) 0px, transparent 50%),
    radial-gradient(at 80% 50%, hsla(340, 100%, 76%, 1) 0px, transparent 50%),
    radial-gradient(at 0% 100%, hsla(22, 100%, 77%, 1) 0px, transparent 50%),
    radial-gradient(at 80% 100%, hsla(242, 100%, 70%, 1) 0px, transparent 50%),
    radial-gradient(at 0% 0%, hsla(343, 100%, 76%, 1) 0px, transparent 50%);

  /* === Blur Values === */

  --blur-none: 0;
  --blur-sm: 4px;
  --blur-base: 8px;
  --blur-md: 12px;
  --blur-lg: 16px;
  --blur-xl: 24px;
  --blur-2xl: 40px;
  --blur-3xl: 64px;

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

  --container-xs: 20rem; /* 320px */
  --container-sm: 24rem; /* 384px */
  --container-md: 28rem; /* 448px */
  --container-lg: 32rem; /* 512px */
  --container-xl: 36rem; /* 576px */
  --container-2xl: 42rem; /* 672px */
  --container-3xl: 48rem; /* 768px */
  --container-4xl: 56rem; /* 896px */
  --container-5xl: 64rem; /* 1024px */
  --container-6xl: 72rem; /* 1152px */
  --container-7xl: 80rem; /* 1280px */
  --container-full: 100%;
}

/* ==========================================
   2. ENHANCED THEME SYSTEM
   ========================================== */

/* Modern Blue Theme */
[data-theme='modern-blue'] {
  --theme-primary: var(--color-primary-600);
  --theme-secondary: var(--color-secondary-600);
  --theme-accent: var(--color-accent-500);
  --theme-gradient: #3b82f6;
  --theme-text: var(--color-neutral-900);
  --theme-bg: var(--color-neutral-50);
}

/* Sunset Theme */
[data-theme='sunset'] {
  --theme-primary: #10b981;
  --theme-secondary: #f5576c;
  --theme-accent: #feca57;
  --theme-gradient: #10b981;
  --theme-text: var(--color-neutral-900);
  --theme-bg: #fff5f7;
}

/* Ocean Theme */
[data-theme='ocean'] {
  --theme-primary: #4facfe;
  --theme-secondary: #00f2fe;
  --theme-accent: #43e97b;
  --theme-gradient: #3b82f6;
  --theme-text: var(--color-neutral-900);
  --theme-bg: #f0f9ff;
}

/* Forest Theme */
[data-theme='forest'] {
  --theme-primary: #43e97b;
  --theme-secondary: #38f9d7;
  --theme-accent: #4facfe;
  --theme-gradient: #10b981;
  --theme-text: var(--color-neutral-900);
  --theme-bg: #f0fdf4;
}

/* Dark Mode Theme */
[data-theme='dark-mode'] {
  --theme-primary: #6366f1;
  --theme-secondary: #10b981;
  --theme-accent: #ec4899;
  --theme-gradient: #1e3a8a;
  --theme-text: var(--color-neutral-100);
  --theme-bg: #0f172a;
}

/* Vibrant Theme */
[data-theme='vibrant'] {
  --theme-primary: #fa709a;
  --theme-secondary: #fee140;
  --theme-accent: #30cfd0;
  --theme-gradient: #f59e0b;
  --theme-text: var(--color-neutral-900);
  --theme-bg: #fffbeb;
}

/* NEW THEMES */

/* Neon Theme */
[data-theme='neon'] {
  --theme-primary: #ff006e;
  --theme-secondary: #8338ec;
  --theme-accent: #3a86ff;
  --theme-gradient: #3b82f6;
  --theme-text: var(--color-neutral-100);
  --theme-bg: #0a0a0a;
}

/* Nature Theme */
[data-theme='nature'] {
  --theme-primary: #2d6a4f;
  --theme-secondary: #52b788;
  --theme-accent: #95d5b2;
  --theme-gradient: #10b981;
  --theme-text: var(--color-neutral-900);
  --theme-bg: #f7f9f7;
}

/* Monochrome Theme */
[data-theme='monochrome'] {
  --theme-primary: #404040;
  --theme-secondary: #737373;
  --theme-accent: #a3a3a3;
  --theme-gradient: #171717;
  --theme-text: var(--color-neutral-900);
  --theme-bg: #fafafa;
}

/* Pastel Theme */
[data-theme='pastel'] {
  --theme-primary: #ffadad;
  --theme-secondary: #ffd6a5;
  --theme-accent: #caffbf;
  --theme-gradient: #10b981;
  --theme-text: var(--color-neutral-900);
  --theme-bg: #fff8f8;
}

/* ==========================================
   3. UTILITY CLASSES
   ========================================== */

/* Display */
.ds-block {
  display: block;
}
.ds-inline {
  display: inline;
}
.ds-inline-block {
  display: inline-block;
}
.ds-flex {
  display: flex;
}
.ds-inline-flex {
  display: inline-flex;
}
.ds-grid {
  display: grid;
}
.ds-hidden {
  display: none;
}

/* Flex Utilities */
.ds-flex-row {
  flex-direction: row;
}
.ds-flex-col {
  flex-direction: column;
}
.ds-flex-wrap {
  flex-wrap: wrap;
}
.ds-items-start {
  align-items: flex-start;
}
.ds-items-center {
  align-items: center;
}
.ds-items-end {
  align-items: flex-end;
}
.ds-justify-start {
  justify-content: flex-start;
}
.ds-justify-center {
  justify-content: center;
}
.ds-justify-end {
  justify-content: flex-end;
}
.ds-justify-between {
  justify-content: space-between;
}
.ds-justify-around {
  justify-content: space-around;
}

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

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

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

/* Text Transform */
.ds-uppercase {
  text-transform: uppercase;
}
.ds-lowercase {
  text-transform: lowercase;
}
.ds-capitalize {
  text-transform: capitalize;
}

/* Overflow */
.ds-overflow-auto {
  overflow: auto;
}
.ds-overflow-hidden {
  overflow: hidden;
}
.ds-overflow-visible {
  overflow: visible;
}
.ds-overflow-scroll {
  overflow: scroll;
}

/* Position */
.ds-relative {
  position: relative;
}
.ds-absolute {
  position: absolute;
}
.ds-fixed {
  position: fixed;
}
.ds-sticky {
  position: sticky;
}

/* ==========================================
   4. ANIMATION PRESETS
   ========================================== */

@keyframes ds-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes ds-fade-out {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

@keyframes ds-slide-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes ds-slide-down {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes ds-slide-left {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes ds-slide-right {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes ds-scale-up {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes ds-rotate-in {
  from {
    opacity: 0;
    transform: rotate(-5deg) scale(0.9);
  }
  to {
    opacity: 1;
    transform: rotate(0) scale(1);
  }
}

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

@keyframes ds-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes ds-shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

/* Animation Classes */
.ds-animate-fade-in {
  animation: ds-fade-in var(--transition-base) ease-out;
}
.ds-animate-slide-up {
  animation: ds-slide-up var(--transition-slow) ease-out;
}
.ds-animate-slide-down {
  animation: ds-slide-down var(--transition-slow) ease-out;
}
.ds-animate-slide-left {
  animation: ds-slide-left var(--transition-slow) ease-out;
}
.ds-animate-slide-right {
  animation: ds-slide-right var(--transition-slow) ease-out;
}
.ds-animate-scale-up {
  animation: ds-scale-up var(--transition-base) ease-out;
}
.ds-animate-rotate-in {
  animation: ds-rotate-in var(--transition-slow) ease-out;
}
.ds-animate-bounce {
  animation: ds-bounce 2s infinite;
}
.ds-animate-pulse {
  animation: ds-pulse 2s infinite;
}

/* ==========================================
   5. GLASSMORPHISM & MODERN EFFECTS
   ========================================== */

.ds-glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(var(--blur-lg));
  -webkit-backdrop-filter: blur(var(--blur-lg));
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.ds-glass-dark {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(var(--blur-lg));
  -webkit-backdrop-filter: blur(var(--blur-lg));
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.ds-morphism {
  background: var(--color-neutral-50);
  box-shadow:
    20px 20px 60px #d1d1d1,
    -20px -20px 60px #ffffff;
}

.ds-morphism-inset {
  background: var(--color-neutral-50);
  box-shadow:
    inset 20px 20px 60px #d1d1d1,
    inset -20px -20px 60px #ffffff;
}

/* ==========================================
   6. RESPONSIVE BREAKPOINTS
   ========================================== */

/* Mobile First Approach */
/* xs: 0-639px (default) */
/* sm: 640px+ */
/* md: 768px+ */
/* lg: 1024px+ */
/* xl: 1280px+ */
/* 2xl: 1536px+ */

/* ==========================================
   7. COMMON COMPONENTS
   ========================================== */

/* === Button Base === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2-5) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: var(--leading-normal);
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

/* Button Variants */
.btn--primary {
  background: var(--color-primary-600);
  color: white;
}

.btn--primary:hover:not(:disabled) {
  background: var(--color-primary-700);
}

.btn--secondary {
  background: var(--color-neutral-100);
  color: var(--color-neutral-800);
  border: 1px solid var(--color-neutral-300);
}

.btn--secondary:hover:not(:disabled) {
  background: var(--color-neutral-200);
}

.btn--ghost {
  background: transparent;
  color: var(--color-neutral-700);
}

.btn--ghost:hover:not(:disabled) {
  background: var(--color-neutral-100);
}

.btn--danger {
  background: var(--color-error);
  color: white;
}

.btn--danger:hover:not(:disabled) {
  background: #dc2626;
}

/* Button Sizes */
.btn--sm {
  padding: var(--space-1-5) var(--space-3);
  font-size: var(--text-xs);
}

.btn--lg {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
}

/* === Card Base === */
.card {
  background: var(--bg-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

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

.card--bordered {
  border: 1px solid var(--border-color);
  box-shadow: none;
}

.card__header {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-color);
}

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

.card__footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-color);
  background: var(--color-neutral-50);
}

/* === Form Elements === */
.input {
  width: 100%;
  padding: var(--space-2-5) var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--text-dark);
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.input:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.input::placeholder {
  color: var(--color-neutral-400);
}

.select {
  width: 100%;
  padding: var(--space-2-5) var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--text-dark);
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  appearance: none;
  background-image: 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='%23737373' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-10);
}

.select:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* === Badge === */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-0-5) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
}

.badge--primary {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
}

.badge--success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.badge--warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

.badge--error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
}

/* ==========================================
   8. ACCESSIBILITY STYLES
   ========================================== */

/* Focus visible styles for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Remove default focus for mouse users */
:focus:not(:focus-visible) {
  outline: none;
}

/* High contrast focus for buttons and interactive elements */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[role='button']:focus-visible,
[role='radio']:focus-visible,
[role='checkbox']:focus-visible,
[role='switch']:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

/* Skip link for screen readers */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary-600);
  color: white;
  text-decoration: none;
  z-index: var(--z-tooltip);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

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

/* Reduced motion preference */
@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;
  }
}

/* ==========================================
   9. DARK MODE
   ========================================== */

/* Dark mode using body.dark-mode class */
body.dark-mode {
  /* Override semantic colors */
  --bg-light: #1e293b;
  --bg-dark: #0f172a;
  --text-dark: #f1f5f9;
  --text-light: #e2e8f0;
  --border-color: #334155;
  --primary-color: #60a5fa;

  /* Background and text */
  background-color: var(--bg-dark);
  color: var(--text-dark);
}

/* Dark mode component overrides */
body.dark-mode .card {
  background: var(--bg-light);
  border-color: var(--border-color);
}

body.dark-mode .input,
body.dark-mode .select {
  background: var(--bg-dark);
  border-color: var(--border-color);
  color: var(--text-dark);
}

body.dark-mode .input::placeholder {
  color: var(--color-neutral-500);
}

body.dark-mode .btn--secondary {
  background: var(--bg-dark);
  color: var(--text-dark);
  border-color: var(--border-color);
}

body.dark-mode .btn--secondary:hover:not(:disabled) {
  background: var(--bg-light);
}

body.dark-mode .btn--ghost {
  color: var(--text-light);
}

body.dark-mode .btn--ghost:hover:not(:disabled) {
  background: var(--bg-light);
}

body.dark-mode .badge--primary {
  background: rgba(96, 165, 250, 0.2);
  color: #93c5fd;
}

/* Dark mode glass effect */
body.dark-mode .ds-glass {
  background: rgba(30, 41, 59, 0.8);
  border-color: rgba(255, 255, 255, 0.1);
}

/* System preference dark mode - only applies when no explicit mode is set */
/* Disabled to prevent conflicts with manual dark mode toggle */
/*
@media (prefers-color-scheme: dark) {
  body:not(.light-mode):not(.dark-mode) {
    --bg-light: #1e293b;
    --bg-dark: #0f172a;
    --text-dark: #f1f5f9;
    --text-light: #e2e8f0;
    --border-color: #334155;
  }
}
*/