/* ============================================
   STERKE MERKEN HOTEL - BASE CSS
   Luxurious, Modern, Sophisticated Design System
   ============================================ */

/* ============================================
   CSS VARIABLES - DESIGN TOKENS
   ============================================ */
:root {
  /* === COLOR PALETTE === */
  /* Primary - Deep Blues */
  --color-primary-900: #0a1628;
  --color-primary-800: #132a4a;
  --color-primary-700: #1a3d6b;
  --color-primary-600: #224f8c;
  --color-primary-500: #2a5fad;
  --color-primary-400: #4a7bc4;
  --color-primary-300: #7099d4;
  --color-primary-200: #a0b9e4;
  --color-primary-100: #d0ddf4;
  --color-primary-50: #e8f0fa;

  /* Accent - Gold/Luxury */
  --color-accent-900: #4a3500;
  --color-accent-800: #755400;
  --color-accent-700: #9f7300;
  --color-accent-600: #c99200;
  --color-accent-500: #d4a017;
  --color-accent-400: #dbb449;
  --color-accent-300: #e5c875;
  --color-accent-200: #eedca1;
  --color-accent-100: #f7f0d0;
  --color-accent-50: #fdfbf0;

  /* Warm Neutrals */
  --color-neutral-900: #2d2520;
  --color-neutral-800: #453930;
  --color-neutral-700: #5d4e41;
  --color-neutral-600: #756352;
  --color-neutral-500: #8d7863;
  --color-neutral-400: #a59482;
  --color-neutral-300: #bdb0a1;
  --color-neutral-200: #d5ccc1;
  --color-neutral-100: #ede8e0;
  --color-neutral-50: #f8f6f3;

  /* Grayscale */
  --color-gray-900: #111827;
  --color-gray-800: #1f2937;
  --color-gray-700: #374151;
  --color-gray-600: #4b5563;
  --color-gray-500: #6b7280;
  --color-gray-400: #9ca3af;
  --color-gray-300: #d1d5db;
  --color-gray-200: #e5e7eb;
  --color-gray-100: #f3f4f6;
  --color-gray-50: #f9fafb;

  /* Semantic Colors */
  --color-success-700: #065f46;
  --color-success-500: #059669;
  --color-success-300: #6ee7b7;
  --color-success-100: #d1fae5;

  --color-warning-700: #92400e;
  --color-warning-500: #d97706;
  --color-warning-300: #fcd34d;
  --color-warning-100: #fef3c7;

  --color-danger-700: #991b1b;
  --color-danger-500: #dc2626;
  --color-danger-300: #fca5a5;
  --color-danger-100: #fee2e2;

  /* Surface Colors */
  --color-background: #ffffff;
  --color-surface: var(--color-neutral-50);
  --color-surface-elevated: #ffffff;
  --color-surface-dark: var(--color-primary-900);
  --color-overlay: rgba(10, 22, 40, 0.85);

  /* Text Colors */
  --color-text-primary: var(--color-neutral-900);
  --color-text-secondary: var(--color-neutral-600);
  --color-text-tertiary: var(--color-neutral-500);
  --color-text-inverse: #ffffff;
  --color-text-accent: var(--color-accent-600);
  --color-text-link: var(--color-primary-600);
  --color-text-link-hover: var(--color-primary-700);

  /* Border Colors */
  --color-border-light: var(--color-neutral-200);
  --color-border-default: var(--color-neutral-300);
  --color-border-dark: var(--color-neutral-400);
  --color-border-accent: var(--color-accent-500);

  /* === TYPOGRAPHY === */
  /* Font Families */
  --font-family-primary: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-family-heading: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
  --font-family-accent: 'Montserrat', 'Helvetica Neue', sans-serif;
  --font-family-mono: 'Monaco', 'Courier New', monospace;

  /* Font Sizes - Fluid Typography Scale */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --font-size-sm: clamp(0.875rem, 0.825rem + 0.25vw, 1rem);
  --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --font-size-md: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
  --font-size-lg: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --font-size-xl: clamp(1.5rem, 1.35rem + 0.75vw, 1.875rem);
  --font-size-2xl: clamp(1.875rem, 1.65rem + 1.125vw, 2.25rem);
  --font-size-3xl: clamp(2.25rem, 1.95rem + 1.5vw, 3rem);
  --font-size-4xl: clamp(3rem, 2.55rem + 2.25vw, 4rem);
  --font-size-5xl: clamp(3.75rem, 3.15rem + 3vw, 5rem);

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

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 1.75;

  /* Letter Spacing */
  --letter-spacing-tighter: -0.05em;
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;
  --letter-spacing-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-7: 1.75rem;    /* 28px */
  --space-8: 2rem;       /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-14: 3.5rem;    /* 56px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */

  /* === BORDER RADIUS === */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-default: 0.5rem; /* 8px */
  --radius-md: 0.75rem;    /* 12px */
  --radius-lg: 1rem;       /* 16px */
  --radius-xl: 1.5rem;     /* 24px */
  --radius-2xl: 2rem;      /* 32px */
  --radius-full: 9999px;

  /* === SHADOWS === */
  --shadow-xs: 0 1px 2px 0 rgba(10, 22, 40, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(10, 22, 40, 0.1), 0 1px 2px -1px rgba(10, 22, 40, 0.1);
  --shadow-default: 0 4px 6px -1px rgba(10, 22, 40, 0.1), 0 2px 4px -2px rgba(10, 22, 40, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(10, 22, 40, 0.1), 0 4px 6px -4px rgba(10, 22, 40, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(10, 22, 40, 0.1), 0 8px 10px -6px rgba(10, 22, 40, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(10, 22, 40, 0.25);
  --shadow-2xl: 0 35px 60px -15px rgba(10, 22, 40, 0.3);
  --shadow-inner: inset 0 2px 4px 0 rgba(10, 22, 40, 0.05);
  --shadow-accent: 0 4px 14px 0 rgba(212, 160, 23, 0.35);
  --shadow-accent-lg: 0 8px 24px 0 rgba(212, 160, 23, 0.45);

  /* === TRANSITIONS === */
  --transition-fast: 150ms;
  --transition-base: 250ms;
  --transition-slow: 350ms;
  --transition-slower: 500ms;

  --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-luxury: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* === Z-INDEX SCALE === */
  --z-base: 0;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;

  /* === LAYOUT === */
  --container-max-width: 1440px;
  --container-padding: var(--space-6);
  --content-max-width: 65ch;
  --header-height: 80px;
}

/* ============================================
   CSS RESET & NORMALIZE
   ============================================ */

/* Box sizing */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Remove default margin and padding */
* {
  margin: 0;
  padding: 0;
}

/* HTML & Body */
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  min-height: 100vh;
  line-height: var(--line-height-normal);
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  overflow-x: hidden;
}

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

/* Form elements */
input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

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

/* Remove list styling */
ul,
ol {
  list-style: none;
}

/* Table reset */
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* Remove text decoration from abbreviations */
abbr[title] {
  text-decoration: none;
}

/* ============================================
   BASE TYPOGRAPHY
   ============================================ */

/* Headings */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-8);
}

h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-6);
}

h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-5);
}

h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

h5 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
}

h6 {
  font-size: var(--font-size-md);
  margin-bottom: var(--space-3);
}

/* Paragraphs */
p {
  margin-bottom: var(--space-4);
  max-width: var(--content-max-width);
  line-height: var(--line-height-relaxed);
}

p:last-child {
  margin-bottom: 0;
}

/* Links */
a {
  color: var(--color-text-link);
  text-decoration: none;
  transition: color var(--transition-base) var(--ease-out);
}

a:hover {
  color: var(--color-text-link-hover);
}

a:focus-visible {
  outline: 2px solid var(--color-accent-500);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Strong & Emphasis */
strong,
b {
  font-weight: var(--font-weight-bold);
}

em,
i {
  font-style: italic;
}

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

/* Code */
code,
kbd,
samp,
pre {
  font-family: var(--font-family-mono);
  font-size: 0.9em;
}

code {
  padding: 0.125rem 0.375rem;
  background-color: var(--color-neutral-100);
  border-radius: var(--radius-sm);
  color: var(--color-primary-700);
}

pre {
  padding: var(--space-4);
  background-color: var(--color-neutral-100);
  border-radius: var(--radius-default);
  overflow-x: auto;
}

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

/* Blockquote */
blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-6);
  border-left: 4px solid var(--color-accent-500);
  background-color: var(--color-neutral-50);
  font-style: italic;
  color: var(--color-text-secondary);
}

/* Horizontal Rule */
hr {
  margin: var(--space-8) 0;
  border: 0;
  border-top: 1px solid var(--color-border-default);
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-fluid {
  width: 100%;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow {
  width: 100%;
  max-width: 1024px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Section Spacing */
.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.section-sm {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.section-lg {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

/* Flex Utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.flex-nowrap {
  flex-wrap: nowrap;
}

.items-start {
  align-items: flex-start;
}

.items-center {
  align-items: center;
}

.items-end {
  align-items: flex-end;
}

.items-stretch {
  align-items: stretch;
}

.justify-start {
  justify-content: flex-start;
}

.justify-center {
  justify-content: center;
}

.justify-end {
  justify-content: flex-end;
}

.justify-between {
  justify-content: space-between;
}

.justify-around {
  justify-content: space-around;
}

.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); }

/* Grid Utilities */
.grid {
  display: grid;
}

.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)); }

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ============================================
   COMPONENT STYLES
   ============================================ */

/* === 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-family-accent);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-default);
  cursor: pointer;
  transition: all var(--transition-base) var(--ease-luxury);
  white-space: nowrap;
  user-select: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent-500);
  outline-offset: 3px;
}

/* Button Primary */
.btn-primary {
  color: var(--color-text-inverse);
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-700));
  box-shadow: var(--shadow-default);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-primary-700), var(--color-primary-800));
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Button Accent (Gold) */
.btn-accent {
  color: var(--color-primary-900);
  background: linear-gradient(135deg, var(--color-accent-500), var(--color-accent-600));
  box-shadow: var(--shadow-accent);
}

.btn-accent:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-accent-600), var(--color-accent-700));
  box-shadow: var(--shadow-accent-lg);
  transform: translateY(-2px);
}

.btn-accent:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Button Secondary */
.btn-secondary {
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-neutral-100);
  border-color: var(--color-neutral-400);
  box-shadow: var(--shadow-default);
}

/* Button Outline */
.btn-outline {
  color: var(--color-primary-600);
  background-color: transparent;
  border-color: var(--color-primary-600);
}

.btn-outline:hover:not(:disabled) {
  color: var(--color-text-inverse);
  background-color: var(--color-primary-600);
}

.btn-outline-accent {
  color: var(--color-accent-600);
  background-color: transparent;
  border-color: var(--color-accent-600);
}

.btn-outline-accent:hover:not(:disabled) {
  color: var(--color-primary-900);
  background-color: var(--color-accent-600);
}

/* Button Ghost */
.btn-ghost {
  color: var(--color-text-primary);
  background-color: transparent;
}

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

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

.btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--font-size-xl);
}

/* Button States */
.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* === CARDS === */
.card {
  background-color: var(--color-surface-elevated);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-default);
  overflow: hidden;
  transition: all var(--transition-base) var(--ease-luxury);
}

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

.card-luxury {
  background: linear-gradient(135deg, var(--color-surface-elevated), var(--color-neutral-50));
  border: 1px solid var(--color-border-light);
}

.card-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}

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

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

.card-image {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.card-image-top {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* === FORM ELEMENTS === */
.form-group {
  margin-bottom: var(--space-6);
}

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

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background-color: var(--color-surface-elevated);
  border: 2px solid var(--color-border-default);
  border-radius: var(--radius-default);
  transition: all var(--transition-base) var(--ease-out);
}

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

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

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary-600);
  box-shadow: 0 0 0 3px rgba(34, 79, 140, 0.1);
}

.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible {
  outline: 2px solid var(--color-accent-500);
  outline-offset: 2px;
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-danger-500);
}

.form-input.success,
.form-select.success,
.form-textarea.success {
  border-color: var(--color-success-500);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background-color: var(--color-neutral-100);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-help {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.form-error {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-danger-500);
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.form-check-input {
  width: 1.25rem;
  height: 1.25rem;
  cursor: pointer;
  accent-color: var(--color-primary-600);
}

.form-check-label {
  cursor: pointer;
  user-select: none;
}

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-primary {
  color: var(--color-text-inverse);
  background-color: var(--color-primary-600);
}

.badge-accent {
  color: var(--color-primary-900);
  background-color: var(--color-accent-500);
}

.badge-success {
  color: var(--color-text-inverse);
  background-color: var(--color-success-500);
}

.badge-warning {
  color: var(--color-primary-900);
  background-color: var(--color-warning-500);
}

.badge-danger {
  color: var(--color-text-inverse);
  background-color: var(--color-danger-500);
}

.badge-neutral {
  color: var(--color-text-primary);
  background-color: var(--color-neutral-200);
}

/* === ALERTS === */
.alert {
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-default);
  border-left: 4px solid;
  margin-bottom: var(--space-4);
}

.alert-success {
  color: var(--color-success-700);
  background-color: var(--color-success-100);
  border-color: var(--color-success-500);
}

.alert-warning {
  color: var(--color-warning-700);
  background-color: var(--color-warning-100);
  border-color: var(--color-warning-500);
}

.alert-danger {
  color: var(--color-danger-700);
  background-color: var(--color-danger-100);
  border-color: var(--color-danger-500);
}

.alert-info {
  color: var(--color-primary-700);
  background-color: var(--color-primary-100);
  border-color: var(--color-primary-500);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

/* Text Colors */
.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-inverse { color: var(--color-text-inverse); }
.text-accent { color: var(--color-text-accent); }
.text-success { color: var(--color-success-500); }
.text-warning { color: var(--color-warning-500); }
.text-danger { color: var(--color-danger-500); }

/* Background Colors */
.bg-primary { background-color: var(--color-primary-600); }
.bg-primary-dark { background-color: var(--color-primary-900); }
.bg-accent { background-color: var(--color-accent-500); }
.bg-surface { background-color: var(--color-surface); }
.bg-neutral { background-color: var(--color-neutral-50); }

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

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

/* Visibility */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

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

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

/* Width & Height */
.w-full { width: 100%; }
.h-full { height: 100%; }
.w-auto { width: auto; }
.h-auto { height: auto; }

/* Margin Utilities */
.m-0 { margin: var(--space-0); }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-4 { margin-top: var(--space-4); margin-bottom: var(--space-4); }
.my-6 { margin-top: var(--space-6); margin-bottom: var(--space-6); }
.my-8 { margin-top: var(--space-8); margin-bottom: var(--space-8); }
.mb-0 { margin-bottom: var(--space-0); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

/* Padding Utilities */
.p-0 { padding: var(--space-0); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.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); }

/* Border Radius */
.rounded { border-radius: var(--radius-default); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadows */
.shadow { box-shadow: var(--shadow-default); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-none { box-shadow: none; }

/* Opacity */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }

/* User Select */
.select-none { user-select: none; }
.select-all { user-select: all; }

/* Pointer Events */
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

/* ============================================
   ACCESSIBILITY
   ============================================ */

/* 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;
}

.sr-only-focusable:focus,
.sr-only-focusable:active {
  position: static;
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* Focus visible outline */
*:focus-visible {
  outline: 2px solid var(--color-accent-500);
  outline-offset: 2px;
}

/* Skip to main content */
.skip-to-main {
  position: absolute;
  top: -100px;
  left: 0;
  z-index: 9999;
  padding: var(--space-4) var(--space-6);
  background-color: var(--color-primary-600);
  color: var(--color-text-inverse);
  text-decoration: none;
  border-radius: var(--radius-default);
  transition: top var(--transition-base) var(--ease-out);
}

.skip-to-main:focus {
  top: var(--space-4);
  left: var(--space-4);
}

/* High contrast for reduced motion users */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-play-state: paused !important;
    transition: none !important;
  }
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

/* Mobile First Breakpoints */
@media (max-width: 640px) {
  .container,
  .container-narrow {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
  
  .section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }
  
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
}

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

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
  .show-mobile { display: none !important; }
}

/* 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) ")";
  }
  
  abbr[title]::after {
    content: " (" attr(title) ")";
  }
  
  pre,
  blockquote {
    border: 1px solid #999;
    page-break-inside: avoid;
  }
  
  thead {
    display: table-header-group;
  }
  
  tr,
  img {
    page-break-inside: avoid;
  }
  
  img {
    max-width: 100% !important;
  }
  
  p,
  h2,
  h3 {
    orphans: 3;
    widows: 3;
  }
  
  h2,
  h3 {
    page-break-after: avoid;
  }
}