/* ============================================
   Realistic Sketch — Main Stylesheet
   Professional, premium design system
   ============================================ */

/* ---------- 1. CSS Variables ---------- */
:root {
  /* Colors — refined art-studio palette */
  --color-bg: #f7f3ec;
  --color-bg-alt: #efe8dc;
  --color-surface: #ffffff;
  --color-text: #1c1917;
  --color-text-muted: #57534e;
  --color-text-light: #78716c;
  --color-primary: #1c1917;
  --color-accent: #b45309;
  --color-accent-hover: #92400e;
  --color-accent-soft: rgba(180, 83, 9, 0.12);
  --color-border: #e7e0d4;
  --color-border-strong: #d6cbb8;
  --color-success: #2d6a4f;
  --color-error: #9b2226;
  --color-overlay: rgba(28, 25, 23, 0.7);
  --color-hero-bg: #1c1917;
  --color-hero-text: #fafaf9;

  /* Typography */
  --font-serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --space-4xl: 6rem;

  /* Layout */
  --container: 72rem;
  --container-narrow: 42rem;
  --header-height: 4.5rem;

  /* Radius & Shadows */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --shadow-hover: 0 8px 28px rgba(0, 0, 0, 0.14);

  /* Transitions */
  --transition: 0.25s ease;
  --transition-slow: 0.4s ease;

  /* Focus */
  --focus-ring: 0 0 0 3px rgba(180, 83, 9, 0.45);
}

/* ---------- 2. Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 100%;
}

@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;
  }
}

body {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-hover);
}

a:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: 2px;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

button:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* ---------- 3. Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  margin-bottom: var(--space-sm);
}

h4 {
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
}

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

.lead {
  font-size: 1.2rem;
  line-height: 1.75;
  color: var(--color-text-muted);
}

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

.text-muted {
  color: var(--color-text-muted);
}

/* ---------- 4. Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

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

.section {
  padding-block: var(--space-3xl);
}

.section-sm {
  padding-block: var(--space-2xl);
}

.section-alt {
  background-color: var(--color-bg-alt);
}

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

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ---------- 5. Header & Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(247, 243, 236, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.logo:hover {
  color: var(--color-primary);
}

.logo-mark {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-accent);
}

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

.nav-desktop a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 0.25rem 0;
}

.nav-desktop a:hover,
.nav-desktop a.active {
  color: var(--color-accent);
}

.nav-desktop a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}

.nav-toggle:hover {
  background: var(--color-accent-soft);
}

.nav-toggle svg {
  width: 1.5rem;
  height: 1.5rem;
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--header-height) 0 0 0;
  background: var(--color-bg);
  z-index: 999;
  padding: var(--space-xl);
  overflow-y: auto;
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: var(--space-md) 0;
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--color-accent);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 2000;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.skip-link:focus {
  top: var(--space-md);
}

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  text-decoration: none;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: #000;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

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

.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1.05rem 2.25rem;
  font-size: 1.05rem;
}

/* ---------- 7. Hero (Split Layout) ---------- */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: min(82vh, 620px);
  background: var(--color-hero-bg);
  overflow: hidden;
}

.hero-content-side {
  display: flex;
  align-items: center;
  padding: var(--space-3xl) var(--space-xl);
  background: var(--color-hero-bg);
  color: var(--color-hero-text);
}

.hero-content-side .hero-content {
  max-width: 32rem;
  margin-inline: auto;
  width: 100%;
}

.hero-content-side h1 {
  color: var(--color-hero-text);
  margin-bottom: var(--space-md);
  font-size: clamp(2.1rem, 4.2vw, 3.25rem);
}

.hero-content-side .lead {
  color: rgba(250, 250, 249, 0.82);
  margin-bottom: var(--space-xl);
}

.hero-media-side {
  position: relative;
  min-height: 320px;
  overflow: hidden;
}

.hero-media-side img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero-media-side::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(28, 25, 23, 0.35) 0%, transparent 40%);
  pointer-events: none;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fbbf24;
  margin-bottom: var(--space-md);
  background: rgba(251, 191, 36, 0.15);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
}

/* Blog cards */
.blog-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 0.5rem;
}

.blog-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.blog-card-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.blog-card-featured .card-image {
  aspect-ratio: 16 / 10;
  min-height: 280px;
}

.blog-card-featured .card-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-2xl);
}

.blog-card-featured h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  margin-bottom: 0.75rem;
}

/* ---------- 8. Cards & Gallery ---------- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.card-image {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.card-body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.card-body p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  flex: 1;
}

.card-meta {
  font-size: 0.8rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
}

/* Gallery grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-alt);
  cursor: pointer;
  aspect-ratio: 1 / 1;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 500;
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

/* ---------- 9. Category Cards ---------- */
.category-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 280px;
  display: flex;
  align-items: flex-end;
}

.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.category-card:hover img {
  transform: scale(1.08);
}

.category-card-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: var(--space-xl);
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: #fff;
}

.category-card-content h3 {
  color: #fff;
  margin-bottom: 0.25rem;
}

.category-card-content p {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* ---------- 10. Article / Content ---------- */
.article-header {
  padding-block: var(--space-2xl) var(--space-xl);
  text-align: center;
}

.article-header .breadcrumb {
  margin-bottom: var(--space-md);
}

.article-hero {
  max-width: 900px;
  margin: 0 auto var(--space-2xl);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.article-hero img {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: cover;
}

.article-content {
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-bottom: var(--space-3xl);
}

.article-content h2 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.article-content h3 {
  margin-top: var(--space-xl);
}

.article-content ul,
.article-content ol {
  margin-bottom: var(--space-md);
  padding-left: 1.4rem;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 0.4rem;
  line-height: 1.65;
}

.article-content figure {
  margin: var(--space-xl) 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-alt);
}

.article-content figure img {
  width: 100%;
}

.article-content figcaption {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.article-content blockquote {
  border-left: 4px solid var(--color-accent);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-xl) 0;
  background: var(--color-accent-soft);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-text-muted);
}

/* Breadcrumbs */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

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

.breadcrumb-sep {
  color: var(--color-text-light);
}

/* ---------- 11. Forms ---------- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

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

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

.form-error {
  color: var(--color-error);
  font-size: 0.875rem;
  margin-top: 0.35rem;
  display: none;
}

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

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

.form-success {
  display: none;
  padding: var(--space-lg);
  background: rgba(45, 106, 79, 0.1);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-md);
  color: var(--color-success);
  margin-bottom: var(--space-lg);
}

.form-success.is-visible {
  display: block;
}

/* ---------- 12. Footer ---------- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  padding-top: var(--space-3xl);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: var(--space-md);
}

.footer-brand p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.7);
  max-width: 20rem;
}

.footer-col h4 {
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

.footer-col ul li {
  margin-bottom: 0.55rem;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  padding-block: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.55);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.55);
}

.footer-bottom a:hover {
  color: var(--color-accent);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ---------- 13. Cookie Consent ---------- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1500;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.1);
  padding: var(--space-lg);
  transform: translateY(100%);
  transition: transform 0.35s ease;
}

.cookie-banner.is-visible {
  transform: translateY(0);
}

.cookie-inner {
  max-width: var(--container);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
}

.cookie-text {
  flex: 1;
  min-width: 240px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.cookie-text a {
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* Cookie preferences modal */
.cookie-modal {
  position: fixed;
  inset: 0;
  z-index: 1600;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  background: var(--color-overlay);
}

.cookie-modal.is-open {
  display: flex;
}

.cookie-modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  max-width: 480px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-xl);
  box-shadow: var(--shadow-lg);
}

.cookie-modal-content h3 {
  margin-bottom: var(--space-md);
}

.cookie-option {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.cookie-option:last-of-type {
  border-bottom: none;
}

.cookie-option label {
  flex: 1;
  cursor: pointer;
}

.cookie-option strong {
  display: block;
  margin-bottom: 0.2rem;
}

.cookie-option p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

.cookie-option input[type="checkbox"] {
  width: 1.2rem;
  height: 1.2rem;
  margin-top: 0.2rem;
  accent-color: var(--color-accent);
}

/* ---------- 14. Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1700;
  background: rgba(0, 0, 0, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.lightbox.is-open {
  display: flex;
}

.lightbox img {
  max-width: 95%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.lightbox-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.75rem;
  height: 2.75rem;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: background var(--transition);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ---------- 15. Back to top ---------- */
.back-to-top {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  width: 2.75rem;
  height: 2.75rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 900;
  box-shadow: var(--shadow-md);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
}

/* ---------- 16. Page-specific ---------- */
.page-hero {
  background: var(--color-bg-alt);
  padding-block: var(--space-3xl);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.page-hero h1 {
  margin-bottom: var(--space-sm);
}

.page-hero .lead {
  max-width: 36rem;
  margin-inline: auto;
}

.section-header {
  text-align: center;
  max-width: 36rem;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

/* Feature list */
.feature-list {
  display: grid;
  gap: var(--space-lg);
}

.feature-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.feature-icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

/* Contact info */
.contact-info {
  display: grid;
  gap: var(--space-lg);
}

.contact-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.contact-item strong {
  display: block;
  margin-bottom: 0.2rem;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-lg);
}

.faq-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

/* Ad placeholder (commented in HTML) */
.ad-slot {
  min-height: 90px;
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.85rem;
  margin-block: var(--space-xl);
}

/* 404 */
.error-page {
  text-align: center;
  padding-block: var(--space-4xl);
}

.error-page h1 {
  font-size: clamp(4rem, 12vw, 8rem);
  color: var(--color-border-strong);
  margin-bottom: var(--space-sm);
  line-height: 1;
}

/* Legal pages */
.legal-content {
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-block: var(--space-2xl) var(--space-3xl);
}

.legal-content h2 {
  margin-top: var(--space-2xl);
  font-size: 1.4rem;
}

.legal-content h3 {
  margin-top: var(--space-lg);
  font-size: 1.15rem;
}

.legal-content ul {
  list-style: disc;
  padding-left: 1.4rem;
  margin-bottom: var(--space-md);
}

.legal-content li {
  margin-bottom: 0.35rem;
}

.legal-updated {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

/* Related */
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

/* ---------- 17. 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;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

/* ---------- 18. Animations (subtle) ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

@media (prefers-reduced-motion: reduce) {
  .animate-in {
    animation: none;
  }
}