/* =====================================================================
   ROSALINA HOTEL YANBU — Main Stylesheet
   Design System: Aman/Four Seasons elegance + Rosalina warmth
   Mobile-first | RTL/LTR | 5 Languages
   ===================================================================== */

/* =====================================================
   1. CSS RESET & BASE
   ===================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { line-height: 1.6; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img, picture, video { display: block; max-width: 100%; height: auto; }
button { font: inherit; cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
input, textarea, select { font: inherit; }

/* =====================================================
   2. DESIGN TOKENS (CSS Variables)
   ===================================================== */
:root {
  /* Colors — Aman elegance + Rosalina warmth */
  --color-cream:        #FAF6F0;
  --color-cream-deep:   #F1EADD;
  --color-white:        #FFFFFF;
  --color-terracotta:   #B85C3D;
  --color-terracotta-soft: #D4836B;
  --color-terracotta-deep: #8F4329;
  --color-charcoal:     #2C2A28;
  --color-stone:        #6B5D54;
  --color-stone-light:  #9B8E83;
  --color-gold:         #C9A961;
  --color-gold-deep:    #A88940;
  --color-sand:         #E8DDD0;
  --color-sand-light:   #F0E8DC;

  /* Semantic colors */
  --bg-primary:         var(--color-cream);
  --bg-secondary:       var(--color-white);
  --bg-elevated:        var(--color-white);
  --text-primary:       var(--color-charcoal);
  --text-secondary:     var(--color-stone);
  --text-muted:         var(--color-stone-light);
  --accent-primary:     var(--color-terracotta);
  --accent-secondary:   var(--color-gold);
  --border-color:       var(--color-sand);
  --border-soft:        var(--color-sand-light);

  /* Typography — Latin/English */
  --font-display: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Type scale (Modular Scale 1.25) */
  --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 */

  /* Spacing scale */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --container-max: 1280px;
  --container-narrow: 1040px;
  --container-text: 720px;
  --gutter: 1.5rem;

  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows — Soft & elegant */
  --shadow-sm:  0 1px 2px rgba(44, 42, 40, 0.04);
  --shadow-md:  0 4px 12px rgba(44, 42, 40, 0.06);
  --shadow-lg:  0 12px 32px rgba(44, 42, 40, 0.08);
  --shadow-xl:  0 24px 60px rgba(44, 42, 40, 0.12);
  --shadow-warm: 0 8px 32px rgba(184, 92, 61, 0.15);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 600ms;

  /* Z-index scale */
  --z-base: 1;
  --z-dropdown: 50;
  --z-sticky: 100;
  --z-banner: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-toast: 600;
  --z-tooltip: 700;
}

/* =====================================================
   3. LANGUAGE-SPECIFIC FONTS
   ===================================================== */
html[lang="ar"] body, html[lang="ar"] {
  font-family: 'IBM Plex Sans Arabic', 'Tajawal', 'Segoe UI', sans-serif;
}
html[lang="ar"] .font-display,
html[lang="ar"] h1, html[lang="ar"] h2, html[lang="ar"] h3,
html[lang="ar"] h4, html[lang="ar"] h5, html[lang="ar"] h6 {
  font-family: 'Tajawal', 'IBM Plex Sans Arabic', sans-serif;
  font-weight: 700;
}

html[lang="ko"] body { font-family: 'Noto Sans KR', sans-serif; }
html[lang="zh"] body { font-family: 'Noto Sans SC', sans-serif; }
html[lang="hi"] body { font-family: 'Noto Sans Devanagari', sans-serif; }

/* =====================================================
   4. BASE TYPOGRAPHY (English/Latin default)
   ===================================================== */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  letter-spacing: -0.01em;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 500;
}

h1 { font-size: clamp(var(--text-4xl), 6vw, var(--text-7xl)); font-weight: 400; }
h2 { font-size: clamp(var(--text-3xl), 4.5vw, var(--text-5xl)); font-weight: 400; }
h3 { font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl)); }
h4 { font-size: clamp(var(--text-xl), 2.5vw, var(--text-3xl)); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); text-transform: uppercase; letter-spacing: 0.1em; }

p { color: var(--text-secondary); line-height: 1.7; }

.text-eyebrow {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 500;
  color: var(--accent-primary);
  margin-bottom: var(--space-4);
  display: inline-block;
}

.text-lead {
  font-size: clamp(var(--text-lg), 2vw, var(--text-xl));
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 300;
}

/* =====================================================
   5. LAYOUT UTILITIES
   ===================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.container-narrow { max-width: var(--container-narrow); }
.container-text   { max-width: var(--container-text); }

.section { padding: var(--space-16) 0; }
@media (min-width: 768px) { .section { padding: var(--space-24) 0; } }
@media (min-width: 1024px) { .section { padding: var(--space-32) 0; } }

.section-header { text-align: center; max-width: 720px; margin: 0 auto var(--space-12); }
.section-header.left { text-align: start; margin-inline: 0; }

/* =====================================================
   6. BUTTONS
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: var(--radius-full);
  transition: all var(--duration-base) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
  text-align: center;
  min-height: 48px;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-primary);
  color: var(--color-white);
}
.btn-primary:hover {
  background: var(--color-terracotta-deep);
  transform: translateY(-2px);
  box-shadow: var(--shadow-warm);
}

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

.btn-gold {
  background: var(--color-gold);
  color: var(--color-charcoal);
}
.btn-gold:hover {
  background: var(--color-gold-deep);
  transform: translateY(-2px);
  box-shadow: var(--shadow-warm);
}

.btn-ghost {
  color: var(--text-primary);
  padding-inline: var(--space-4);
}
.btn-ghost:hover { color: var(--accent-primary); }

.btn-sm { padding: var(--space-2) var(--space-5); font-size: var(--text-sm); min-height: 40px; }
.btn-lg { padding: var(--space-5) var(--space-10); font-size: var(--text-lg); min-height: 56px; }

.btn-icon { padding: var(--space-3); min-width: 48px; }

/* =====================================================
   7. NAVIGATION (Header)
   ===================================================== */
.site-header {
  position: fixed;
  top: 0;
  inset-inline: 0;
  z-index: var(--z-sticky);
  background: rgba(250, 246, 240, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--duration-base) var(--ease-out);
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: var(--border-color);
  box-shadow: var(--shadow-sm);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-6);
}
@media (min-width: 1024px) { .nav-wrap { height: 88px; } }

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.nav-logo-mark {
  width: 40px;
  height: 40px;
  background: var(--accent-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  font-style: italic;
}
.nav-logo-text { display: none; }
@media (min-width: 768px) { .nav-logo-text { display: block; } }
.nav-logo-text small {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 400;
  margin-top: 2px;
}

.nav-menu {
  display: none;
  align-items: center;
  gap: var(--space-8);
}
@media (min-width: 1024px) { .nav-menu { display: flex; } }

.nav-menu a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--duration-fast);
}
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  inset-inline-start: 0;
  width: 0;
  height: 1px;
  background: var(--accent-primary);
  transition: width var(--duration-base) var(--ease-out);
}
.nav-menu a:hover, .nav-menu a.active { color: var(--accent-primary); }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Language switcher */
.lang-switcher {
  position: relative;
}
.lang-current {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast);
  background: transparent;
}
.lang-current:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}
.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  inset-inline-end: 0;
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 160px;
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--duration-base) var(--ease-out);
}
.lang-switcher.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast);
  text-align: start;
}
.lang-option:hover { background: var(--bg-primary); }
.lang-option.active { color: var(--accent-primary); font-weight: 600; }
.lang-flag { font-size: var(--text-lg); }

/* Mobile menu toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: var(--space-3);
}
@media (min-width: 1024px) { .menu-toggle { display: none; } }
.menu-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all var(--duration-base) var(--ease-out);
  margin: 0 auto;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile menu drawer */
.mobile-menu {
  position: fixed;
  top: 72px;
  inset-inline: 0;
  bottom: 0;
  background: var(--color-cream);
  z-index: calc(var(--z-sticky) - 1);
  padding: var(--space-8) var(--gutter);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-base) var(--ease-out);
  overflow-y: auto;
}
.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}
.mobile-menu nav { display: flex; flex-direction: column; gap: var(--space-2); }
.mobile-menu nav a {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  color: var(--text-primary);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border-soft);
}
.mobile-menu nav a.active { color: var(--accent-primary); }
.mobile-menu .mobile-actions {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* =====================================================
   8. STICKY BOOKING BAR (Conversion Priority)
   ===================================================== */
.sticky-book-bar {
  position: fixed;
  bottom: 0;
  inset-inline: 0;
  z-index: var(--z-sticky);
  background: var(--color-charcoal);
  color: var(--color-white);
  padding: var(--space-4) var(--gutter);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.15);
  transform: translateY(100%);
  transition: transform var(--duration-base) var(--ease-out);
}
.sticky-book-bar.visible { transform: translateY(0); }

.sticky-book-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.sticky-book-info {
  display: none;
  flex-direction: column;
}
@media (min-width: 768px) { .sticky-book-info { display: flex; } }
.sticky-book-info strong {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
}
.sticky-book-info span {
  font-size: var(--text-sm);
  color: var(--color-sand);
}
.sticky-book-actions {
  display: flex;
  gap: var(--space-3);
  flex: 1;
  justify-content: flex-end;
}
@media (max-width: 767px) { .sticky-book-actions { width: 100%; } .sticky-book-actions .btn { flex: 1; } }

/* =====================================================
   9. WHATSAPP FLOATING BUTTON
   ===================================================== */
.wa-float {
  position: fixed;
  bottom: 100px;
  inset-inline-end: var(--space-6);
  z-index: var(--z-sticky);
  width: 56px;
  height: 56px;
  background: #25D366;
  color: var(--color-white);
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35);
  transition: all var(--duration-base) var(--ease-out);
}
.wa-float:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.5);
}
.wa-float svg { width: 28px; height: 28px; }
.wa-float::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid #25D366;
  opacity: 0.4;
  animation: wa-pulse 2s infinite;
}
@keyframes wa-pulse {
  0% { transform: scale(1); opacity: 0.4; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* =====================================================
   10. CARDS
   ===================================================== */
.card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-base) var(--ease-out);
  border: 1px solid var(--border-soft);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-color);
}
.card-image {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-sand);
}
.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(1.06); }
.card-body { padding: var(--space-6); }
.card-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  margin-bottom: var(--space-2);
}
.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}
.card-text {
  color: var(--text-secondary);
  font-size: var(--text-base);
  line-height: 1.65;
}

/* =====================================================
   11. TRUST BADGES
   ===================================================== */
.trust-strip {
  background: var(--color-sand-light);
  padding: var(--space-6) 0;
  border-block: 1px solid var(--border-color);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  align-items: center;
  text-align: center;
}
@media (min-width: 768px) { .trust-grid { grid-template-columns: repeat(4, 1fr); } }
.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}
.trust-rating {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 500;
  color: var(--accent-primary);
}
.trust-stars {
  color: var(--color-gold);
  font-size: var(--text-base);
  letter-spacing: 2px;
}
.trust-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  font-weight: 500;
}

.best-rate-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-gold);
  color: var(--color-charcoal);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* =====================================================
   12. FORMS
   ===================================================== */
.form-group { margin-bottom: var(--space-5); }
.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--text-base);
  color: var(--text-primary);
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast);
  min-height: 48px;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(184, 92, 61, 0.1);
}
.form-textarea { min-height: 120px; resize: vertical; }
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 640px) { .form-row.cols-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px) { .form-row.cols-3 { grid-template-columns: repeat(3, 1fr); } }

/* Booking widget (hero) */
.booking-widget {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-soft);
}
.booking-widget-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

/* =====================================================
   13. FOOTER
   ===================================================== */
.site-footer {
  background: var(--color-charcoal);
  color: var(--color-cream);
  padding: var(--space-20) 0 var(--space-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }

.footer-brand h3 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  color: var(--color-white);
  margin-bottom: var(--space-4);
}
.footer-brand p {
  color: var(--color-sand);
  font-size: var(--text-base);
  line-height: 1.7;
  max-width: 360px;
}
.footer-col h6 {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-5);
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a {
  color: var(--color-sand);
  font-size: var(--text-sm);
  transition: color var(--duration-fast);
}
.footer-col a:hover { color: var(--color-terracotta-soft); }
.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(232, 221, 208, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-sm);
  color: var(--color-stone-light);
  text-align: center;
}
@media (min-width: 768px) { .footer-bottom { flex-direction: row; text-align: start; } }

/* =====================================================
   14. ANIMATIONS (Reveal on scroll)
   ===================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out);
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-delay="100"].revealed { transition-delay: 100ms; }
[data-reveal-delay="200"].revealed { transition-delay: 200ms; }
[data-reveal-delay="300"].revealed { transition-delay: 300ms; }
[data-reveal-delay="400"].revealed { transition-delay: 400ms; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* =====================================================
   15. UTILITIES
   ===================================================== */
.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;
}
.text-center { text-align: center; }
.text-start { text-align: start; }
.text-end { text-align: end; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Body padding (for fixed header & sticky bar) */
body {
  padding-top: 72px;
  padding-bottom: 80px; /* sticky bar */
}
@media (min-width: 1024px) { body { padding-top: 88px; } }

/* RTL adjustments */
html[dir="rtl"] .nav-menu a::after { left: auto; right: 0; }

/* Print */
@media print {
  .site-header, .sticky-book-bar, .wa-float, .mobile-menu { display: none !important; }
  body { padding: 0; }
}