/* ============================================================
   APC — Avenir & Projet Construction — Design System
   Palette: Charcoal + Or (inspiré logo APC)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Inter:wght@300;400;500;600&display=swap');

:root, [data-theme="light"] {
  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* Spacing */
  --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;

  /* Surfaces — Gris pierre élégant */
  --color-bg:             #f5f4f0;
  --color-surface:        #faf9f7;
  --color-surface-2:      #ffffff;
  --color-surface-offset: #eeece7;
  --color-divider:        #dbd8d2;
  --color-border:         #d0cdc7;

  /* Text */
  --color-text:           #1e1c17;
  --color-text-muted:     #6b6960;
  --color-text-faint:     #b0ada8;
  --color-text-inverse:   #f8f7f4;

  /* Primary — Or APC */
  --color-primary:        #e88a1a;
  --color-primary-hover:  #c8720e;
  --color-primary-active: #a55a08;
  --color-primary-highlight: #faebd8;

  /* Accent — Charcoal profond */
  --color-accent:         #2c2a23;
  --color-accent-hover:   #1a1915;

  /* Semantic */
  --color-success:        #437a22;
  --color-error:          #a12c7b;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.625rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(30,28,23,0.06);
  --shadow-md: 0 4px 16px rgba(30,28,23,0.09);
  --shadow-lg: 0 12px 40px rgba(30,28,23,0.14);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;
}

[data-theme="dark"] {
  --color-bg:             #18170f;
  --color-surface:        #1e1d14;
  --color-surface-2:      #22211a;
  --color-surface-offset: #1b1a13;
  --color-divider:        #2e2d24;
  --color-border:         #3a3930;
  --color-text:           #d6d4cc;
  --color-text-muted:     #7a7870;
  --color-text-faint:     #55534b;
  --color-text-inverse:   #1e1c17;
  --color-primary:        #e88a1a;
  --color-primary-hover:  #f09e40;
  --color-primary-active: #f5b560;
  --color-primary-highlight: #3a2410;
  --color-accent:         #f0ede6;
  --color-accent-hover:   #ffffff;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #18170f;
    --color-surface:        #1e1d14;
    --color-surface-2:      #22211a;
    --color-surface-offset: #1b1a13;
    --color-divider:        #2e2d24;
    --color-border:         #3a3930;
    --color-text:           #d6d4cc;
    --color-text-muted:     #7a7870;
    --color-text-faint:     #55534b;
    --color-text-inverse:   #1e1c17;
    --color-primary:        #e88a1a;
    --color-primary-hover:  #f09e40;
    --color-primary-highlight: #3a2410;
    --color-accent:         #f0ede6;
    --color-accent-hover:   #ffffff;
  }
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 5vw, var(--space-16));
}
.container--narrow {
  max-width: var(--content-default);
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-interactive);
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
  gap: var(--space-6);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo img {
  height: 48px;
  width: auto;
  border-radius: var(--radius-sm);
}
.nav-brand-name {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: 0.01em;
}
.nav-brand-name strong {
  display: block;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
@media (max-width: 768px) {
  .nav-brand-name { display: none; }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.nav-links a:hover {
  color: var(--color-primary);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-interactive);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Mobile nav toggle */
.nav-hamburger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  background: transparent;
}

@media (max-width: 768px) {
  .nav-links, .nav-cta .btn-primary { display: none; }
  .nav-hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface-2);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-6);
    gap: var(--space-6);
    align-items: flex-start;
    box-shadow: var(--shadow-lg);
  }
  .nav-links.open a {
    font-size: var(--text-base);
  }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 90vh;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--color-accent);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('./assets/facade-apres.jpg');
  background-size: cover;
  background-position: center 40%;
  filter: brightness(0.45);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-16) var(--space-8);
  max-width: 900px;
  margin-inline: auto;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2) var(--space-3);
  font-family: 'Barlow Condensed', 'Impact', sans-serif;
  font-size: clamp(0.85rem, 0.7rem + 0.8vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #e88a1a;
  margin-bottom: var(--space-6);
}
.hero-eyebrow::before,
.hero-eyebrow::after {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: #e88a1a;
}
@media (max-width: 480px) {
  .eyebrow-sep { display: none; }
  .hero-eyebrow { flex-direction: column; gap: var(--space-1); }
  .hero-eyebrow::before, .hero-eyebrow::after { display: none; }
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 0.8rem + 3vw, 3.5rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.1;
  margin-bottom: var(--space-6);
}
.hero h1 em {
  font-style: normal;
  color: var(--color-primary);
}
.hero-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  margin-bottom: var(--space-8);
  line-height: 1;
}
.hero-brand-main {
  font-family: 'League Gothic', 'Alternate Gothic', 'Impact', sans-serif;
  font-size: clamp(2.4rem, 1rem + 4.5vw, 5rem);
  font-weight: 400;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1;
}
.hero-brand-sub {
  font-family: 'Dancing Script', 'Pacifico', cursive;
  font-size: clamp(1.6rem, 0.8rem + 2.5vw, 3rem);
  font-weight: 700;
  color: #e88a1a;
  line-height: 1.1;
  margin-top: -4px;
}

.hero-subtitle {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-10);
  font-weight: 400;
  max-width: 60ch;
  margin-inline: auto;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}
.hero-actions .btn-primary {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}
.hero-actions .btn-outline {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  color: #ffffff;
  border-color: rgba(255,255,255,0.4);
}
.hero-actions .btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.5);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  animation: bounce 2s ease-in-out infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ============================================================
   STATS BAND
   ============================================================ */
.stats-band {
  background: var(--color-accent);
  padding-block: var(--space-10);
}
[data-theme="dark"] .stats-band {
  background: var(--color-surface-offset);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-8);
  text-align: center;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}
.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
}
.stat-label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}
[data-theme="dark"] .stat-label {
  color: var(--color-text-muted);
}

/* ============================================================
   SECTIONS GÉNÉRIQUES
   ============================================================ */
section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.section-tag::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  line-height: 1.15;
}
.section-lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.7;
  margin-bottom: var(--space-12);
}

/* ============================================================
   ABOUT / PRÉSENTATION
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-10), 5vw, var(--space-24));
  align-items: center;
}
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; }
}
.about-image-wrap {
  position: relative;
}
.about-image-wrap img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.about-badge {
  position: absolute;
  bottom: -var(--space-6);
  right: -var(--space-6);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  box-shadow: var(--shadow-md);
  bottom: var(--space-6);
  right: var(--space-6);
}
.about-content { display: flex; flex-direction: column; }
.about-intro {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}
.about-text {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}
.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-8);
}
.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}
.highlight-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}
.highlight-text h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}
.highlight-text p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  max-width: none;
}

/* ============================================================
   SERVICES
   ============================================================ */
.services-section {
  background: var(--color-surface-offset);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}
.service-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition-interactive);
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--color-primary);
}
.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}
.service-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.service-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: none;
}
.service-list {
  list-style: none;
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.service-list li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  max-width: none;
}
.service-list li::before {
  content: '';
  display: block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

/* ============================================================
   DOMAINES D'INTERVENTION
   ============================================================ */
.domains-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
@media (max-width: 600px) {
  .domains-grid { grid-template-columns: 1fr; }
}
.domain-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  cursor: default;
}
.domain-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.domain-card:hover img {
  transform: scale(1.04);
}
.domain-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(18,16,10,0.85) 0%, rgba(18,16,10,0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
}
.domain-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.domain-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: #ffffff;
  line-height: 1.2;
}

/* ============================================================
   PROCESSUS
   ============================================================ */
.process-section {
  background: var(--color-surface-offset);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
  counter-reset: steps;
}
.process-step {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  position: relative;
}
.process-step::after {
  content: '';
  position: absolute;
  top: 26px;
  left: calc(100% + var(--space-4));
  width: calc(var(--space-8) - var(--space-4));
  height: 1px;
  border-top: 2px dashed var(--color-border);
}
.process-step:last-child::after { display: none; }
@media (max-width: 600px) {
  .process-steps { grid-template-columns: 1fr; }
  .process-step::after { display: none; }
}
.step-number {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-highlight);
}
.process-step h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
}
.process-step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: none;
}

/* ============================================================
   RÉALISATIONS / GALERIE
   ============================================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto;
  gap: var(--space-4);
}
.gallery-item {
  overflow: hidden;
  border-radius: var(--radius-lg);
  position: relative;
}
.gallery-item.featured {
  grid-column: span 2;
  grid-row: span 2;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16/10;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.gallery-item.featured img {
  aspect-ratio: 16/9;
}
.gallery-item:hover img {
  transform: scale(1.04);
}
.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(20,18,12,0.9), transparent);
  padding: var(--space-4) var(--space-5);
  opacity: 0;
  transition: opacity var(--transition-interactive);
}
.gallery-item:hover .gallery-caption {
  opacity: 1;
}
.gallery-caption span {
  font-size: var(--text-xs);
  color: #ffffff;
  font-weight: 500;
}
@media (max-width: 768px) {
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-item.featured { grid-column: span 2; }
}
@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-item.featured { grid-column: span 1; }
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-section {
  background: var(--color-accent);
}
[data-theme="dark"] .contact-section {
  background: var(--color-surface-offset);
}
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(var(--space-10), 5vw, var(--space-24));
  align-items: start;
}
@media (max-width: 768px) {
  .contact-inner { grid-template-columns: 1fr; }
}
.contact-info .section-title,
.contact-info .section-lead,
.contact-info .section-tag {
  /* on dark bg */
}
.contact-section .section-title { color: #ffffff; }
.contact-section .section-lead { color: rgba(255,255,255,0.7); }
[data-theme="dark"] .contact-section .section-title { color: var(--color-text); }
[data-theme="dark"] .contact-section .section-lead { color: var(--color-text-muted); }

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.contact-detail-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(199,139,42,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}
.contact-detail-text h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  margin-bottom: 2px;
}
[data-theme="dark"] .contact-detail-text h4 { color: var(--color-text); }
.contact-detail-text p,
.contact-detail-text a {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  max-width: none;
}
[data-theme="dark"] .contact-detail-text p,
[data-theme="dark"] .contact-detail-text a { color: var(--color-text-muted); }
.contact-detail-text a:hover { color: var(--color-primary); }

.contact-form {
  background: var(--color-surface-2);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-lg);
}
.form-group {
  margin-bottom: var(--space-5);
}
.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-highlight);
}
.form-textarea {
  resize: vertical;
  min-height: 120px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
}
.form-submit {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--text-base);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-accent);
  color: rgba(255,255,255,0.6);
  padding-block: var(--space-12) var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.08);
}
[data-theme="dark"] .site-footer {
  background: #0e0d09;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-10);
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer-brand img {
  height: 48px;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-sm);
}
.footer-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  max-width: 30ch;
  color: rgba(255,255,255,0.55);
}
.footer-col h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer-links a {
  text-decoration: none;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-interactive);
}
.footer-links a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
}
.footer-bottom a {
  color: rgba(255,255,255,0.45);
  text-decoration: none;
}
.footer-bottom a:hover { color: var(--color-primary); }

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* ============================================================
   FORM SUCCESS MESSAGE
   ============================================================ */
.form-success {
  display: none;
  background: var(--color-primary-highlight);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  color: var(--color-primary-active, var(--color-primary));
  font-size: var(--text-sm);
  font-weight: 500;
  margin-top: var(--space-4);
  text-align: center;
}
.form-success.show { display: block; }