/* ============================================================
   Construction Maxime Viens, Cantons-de-l'Est
   ============================================================ */

/* --- Custom Properties --- */
:root {
  --color-bg: #101012;
  --color-bg-alt: #161619;
  --color-white: #F5F5F7;
  --color-text: #D4D4D8;
  --color-text-light: #82828C;
  --color-accent: #4EAD2B;
  --color-accent-dark: #3D8A22;
  --color-accent-light: #1E1E22;
  --color-accent-warm: #A0A0AB;
  --color-surface: #1C1C20;
  --color-surface-raised: #242428;
  --color-border: #2C2C32;
  --color-border-light: #38383F;
  --color-overlay-start: rgba(14, 14, 18, 0.80);
  --color-overlay-end: rgba(14, 14, 18, 0.45);
  --color-glow: rgba(160, 160, 171, 0.05);
  --color-error: #E53E3E;
  --color-success: #4EAD2B;

  --font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.75rem;
  --font-size-4xl: 3.75rem;

  --max-width: 1280px;
  --header-height: 80px;
  --radius: 6px;
  --radius-lg: 10px;
  --shadow: 0 2px 12px rgba(0,0,0,0.25), 0 0 0 1px rgba(255,255,255,0.03);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.35), 0 0 0 1px rgba(255,255,255,0.04);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

body::before,
body::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

body::before {
  background:
    radial-gradient(800px at 78% 6%, rgba(78,173,43,0.14) 0%, rgba(78,173,43,0.03) 45%, transparent 80%),
    radial-gradient(600px at 88% 65%, rgba(255,255,255,0.18) 0%, rgba(255,255,255,0.04) 40%, transparent 75%);
}

body::after {
  background:
    radial-gradient(850px at 15% 80%, rgba(78,173,43,0.12) 0%, rgba(78,173,43,0.025) 45%, transparent 80%),
    radial-gradient(550px at 55% 30%, rgba(255,255,255,0.16) 0%, rgba(255,255,255,0.03) 40%, transparent 75%);
}

main,
.site-footer {
  position: relative;
  z-index: 1;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent-warm); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-white); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* --- Utilities --- */
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }
.section[id] { scroll-margin-top: var(--header-height); }
.section--alt { background: transparent; }
.text-center { text-align: center; }
.mt-sm { margin-top: 1rem; }
.mt-md { margin-top: 2rem; }
.mt-lg { margin-top: 3rem; }
.narrow { max-width: 800px; margin-left: auto; margin-right: auto; }

/* --- Scroll Reveal --- */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-children.visible .card:nth-child(1),
.stagger-children.visible .feature:nth-child(1),
.stagger-children.visible .engagement-card:nth-child(1),
.stagger-children.visible .value-card:nth-child(1) { transition-delay: 0s; }

.stagger-children.visible .card:nth-child(2),
.stagger-children.visible .feature:nth-child(2),
.stagger-children.visible .engagement-card:nth-child(2),
.stagger-children.visible .value-card:nth-child(2) { transition-delay: 0.1s; }

.stagger-children.visible .card:nth-child(3),
.stagger-children.visible .feature:nth-child(3),
.stagger-children.visible .engagement-card:nth-child(3),
.stagger-children.visible .value-card:nth-child(3) { transition-delay: 0.2s; }

.stagger-children.visible .card:nth-child(4),
.stagger-children.visible .feature:nth-child(4),
.stagger-children.visible .engagement-card:nth-child(4),
.stagger-children.visible .value-card:nth-child(4) { transition-delay: 0.3s; }

.stagger-children .card,
.stagger-children .feature,
.stagger-children .engagement-card,
.stagger-children .value-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.visible .card,
.stagger-children.visible .feature,
.stagger-children.visible .engagement-card,
.stagger-children.visible .value-card {
  opacity: 1;
  transform: translateY(0);
}

/* --- Typography --- */
h1, h2, h3, h4 {
  line-height: 1.15;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.03em;
}

h1 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  letter-spacing: -0.04em;
}

h2 {
  font-size: var(--font-size-xl);
  margin-bottom: 1rem;
}

h3 {
  font-size: var(--font-size-lg);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

p {
  margin-bottom: 1rem;
  color: var(--color-text-light);
}

.section-header {
  max-width: 640px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 36px;
  height: 2px;
  background: var(--color-accent-warm);
  border-radius: 1px;
  margin: 1rem auto 0;
  box-shadow: 0 0 12px rgba(160,160,171,0.25);
}

.section-header p {
  margin-top: 1rem;
  font-size: var(--font-size-lg);
}

@media (min-width: 768px) {
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
}

@media (min-width: 1024px) {
  h1 { font-size: var(--font-size-4xl); }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: 100px;
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  white-space: nowrap;
  letter-spacing: 0.015em;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(78,173,43,0.2);
  transform: translateY(-1px);
}

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

.btn--outline:hover {
  background: rgba(255,255,255,0.04);
  color: var(--color-white);
  border-color: var(--color-text-light);
  transform: translateY(-1px);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-bg);
  border-color: var(--color-white);
}

.btn--white:hover {
  background: rgba(255,255,255,0.88);
  color: var(--color-bg);
  border-color: rgba(255,255,255,0.88);
  transform: translateY(-1px);
}

.btn--sm {
  padding: 0.35rem 0.9rem;
  font-size: 0.75rem;
}

.btn:active:not(:disabled) {
  transform: scale(0.98);
  transition-duration: 0.1s;
}

.btn:disabled {
  opacity: 0.5;
  pointer-events: none;
  transform: none;
}

.btn--loading {
  color: transparent !important;
  pointer-events: none;
  position: relative;
}

.btn--loading::after {
  content: '';
  position: absolute;
  width: 1.1em;
  height: 1.1em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: btnSpin 0.6s linear infinite;
}

.btn--primary.btn--loading::after { border-color: var(--color-white); border-right-color: transparent; }
.btn--white.btn--loading::after { border-color: var(--color-bg); border-right-color: transparent; }

@keyframes btnSpin {
  to { transform: rotate(360deg); }
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.site-header.scrolled {
  background: rgba(30, 30, 36, 0.82);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 12px rgba(0,0,0,0.25), inset 0 -1px 0 rgba(255,255,255,0.03);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.site-header__logo { flex-shrink: 0; line-height: 0; }
.site-header__logo img {
  height: 46px;
  width: auto;
  transition: filter var(--transition);
}
.site-header:not(.scrolled) .site-header__logo img {
  filter: brightness(0) invert(1);
}

/* Nav */
.site-header__nav { display: none; flex: 1; min-width: 0; }
.site-header__nav ul { display: flex; align-items: center; justify-content: center; gap: 1.5rem; }

.site-header__nav a {
  color: rgba(255,255,255,0.7);
  font-size: var(--font-size-sm);
  font-weight: 500;
  position: relative;
  transition: color var(--transition);
}

.site-header:not(.scrolled) .site-header__nav a { color: rgba(255,255,255,0.9); }
.site-header:not(.scrolled) .site-header__nav a:hover,
.site-header:not(.scrolled) .site-header__nav a.active { color: #fff; }

.site-header__nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-warm);
  transition: width var(--transition);
}

.site-header:not(.scrolled) .site-header__nav a::after { background: #fff; }

.site-header__nav a:hover::after,
.site-header__nav a.active::after { width: 100%; }
.site-header__nav a:hover { color: var(--color-white); }
.site-header.scrolled .site-header__nav a:hover { color: var(--color-white); }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown > a { display: flex; align-items: center; gap: 0.25rem; }
.nav-dropdown__arrow { font-size: 0.625rem; transition: transform var(--transition); }

.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 12px);
  left: -1rem;
  min-width: 230px;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
}

.nav-dropdown:hover .nav-dropdown__menu,
.nav-dropdown:focus-within .nav-dropdown__menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown:hover .nav-dropdown__arrow,
.nav-dropdown:focus-within .nav-dropdown__arrow { transform: rotate(180deg); }

.nav-dropdown__menu a {
  display: block;
  padding: 0.625rem 1.25rem;
  font-size: var(--font-size-sm);
  color: var(--color-text) !important;
}

.nav-dropdown__menu a:hover { background: rgba(255,255,255,0.05); color: var(--color-white) !important; }
.nav-dropdown__menu a::after { display: none; }

/* Header actions */
.site-header__actions { display: flex; align-items: center; gap: 1rem; flex-shrink: 0; }

.site-header__phone {
  display: none;
  color: rgba(255,255,255,0.7);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.site-header:not(.scrolled) .site-header__phone { color: rgba(255,255,255,0.9); }

.site-header__cta { display: none; }

/* Language Switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.25);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.lang-switch:hover {
  background: rgba(255,255,255,0.1);
  color: var(--color-white);
  border-color: rgba(255,255,255,0.5);
}
.site-header:not(.scrolled) .lang-switch {
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.site-header:not(.scrolled) .lang-switch:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.7);
  color: #fff;
}

/* Hamburger */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: rgba(255,255,255,0.85);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
}

.site-header:not(.scrolled) .menu-toggle span { background: #fff; }

.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile nav overlay */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 99;
  padding: 2rem 1.5rem;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}

.mobile-nav.open { transform: translateX(0); }

.mobile-nav a {
  display: block;
  padding: 0.875rem 0;
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav a:hover { color: var(--color-white); }

.mobile-nav__phone { text-align: center; font-weight: 600; margin-top: 1.5rem; }

@media (min-width: 1100px) {
  .site-header__nav { display: block; }
  .site-header__phone { display: block; }
  .site-header__cta { display: inline-flex; }
  .menu-toggle { display: none; }
}

@media (min-width: 1280px) {
  .site-header__nav ul { gap: 2rem; }
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-bg);
  padding-top: var(--header-height);
}

.hero--short {
  min-height: 60vh;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, var(--color-overlay-start) 0%, var(--color-overlay-end) 55%, var(--color-overlay-start) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  color: var(--color-white);
  max-width: 780px;
  padding: 4rem 0;
  animation: heroReveal 0.8s ease-out 0.15s both;
}

@keyframes heroReveal {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero__content h1 {
  color: var(--color-white);
  margin-bottom: 1.25rem;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero__content p {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-lg);
  margin-bottom: 2.5rem;
  line-height: 1.8;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.4);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* --- Trust Bar --- */
.trust-bar {
  background: transparent;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 2.25rem 0;
  position: relative;
  z-index: 2;
}

.trust-bar__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.trust-bar__item strong {
  display: block;
  font-size: var(--font-size-xl);
  color: var(--color-white);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.trust-bar__item span {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

@media (min-width: 768px) {
  .trust-bar__grid { grid-template-columns: repeat(4, 1fr); }

  .trust-bar__item {
    position: relative;
  }

  .trust-bar__item + .trust-bar__item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 15%;
    height: 70%;
    width: 1px;
    background: var(--color-border);
  }
}

/* --- Cards --- */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .card-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .card-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .card-grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255,255,255,0.05);
  transform: translateY(-2px);
}

a.card { color: inherit; }

.card__image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg);
}

.card__photo-count {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm, 4px);
  pointer-events: none;
}

.card--gallery .card__image {
  cursor: pointer;
}

.card__gallery-trigger {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 0.75rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.22), transparent 45%);
}

.card__gallery-cta {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  font-size: 0.8rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.18);
  transition: background var(--transition);
}

.card__gallery-trigger:hover .card__gallery-cta,
.card__gallery-trigger:focus-visible .card__gallery-cta {
  background: rgba(255, 255, 255, 0.25);
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card__image img { transform: scale(1.03); }

.card__body { padding: 1.5rem; }
.card__body h3 { margin-bottom: 0.5rem; }
.card__body p { font-size: var(--font-size-sm); margin-bottom: 1rem; }

.card__tag {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent-warm);
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  background: rgba(160, 160, 171, 0.10);
  border-radius: 100px;
  margin-bottom: 0.75rem;
}

.card__meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* --- Testimonial --- */
.testimonial {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.testimonial::before {
  content: '\201C';
  display: block;
  font-size: 6rem;
  line-height: 1;
  color: var(--color-accent-warm);
  opacity: 0.25;
  font-family: Georgia, serif;
  margin-bottom: -1.5rem;
  text-shadow: 0 0 30px rgba(160,160,171,0.12);
}

.testimonial blockquote {
  font-size: var(--font-size-lg);
  font-style: italic;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

.testimonial cite {
  font-style: normal;
  font-weight: 600;
  color: var(--color-white);
}

.testimonial cite span {
  display: block;
  font-weight: 400;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-top: 0.25rem;
}

/* --- Testimonial Carousel --- */
.testimonial-carousel {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
}

.testimonial-carousel .testimonial {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.testimonial-carousel .testimonial.active {
  position: relative;
  opacity: 1;
  pointer-events: auto;
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 0.625rem;
  margin-top: 2rem;
}

.testimonial-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border-light);
  transition: background var(--transition), transform var(--transition);
  padding: 0;
}

.testimonial-dot.active {
  background: var(--color-accent-warm);
  transform: scale(1.25);
}

.testimonial-dot:hover {
  background: var(--color-text-light);
}

/* --- Features / Why Us --- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .features-grid--4 { grid-template-columns: repeat(4, 1fr); }
  .features-grid--3 { grid-template-columns: repeat(3, 1fr); }
}

.feature {
  text-align: center;
  padding: 2.5rem 1.5rem;
}

.feature__icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-accent-warm);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  transition: border-color var(--transition), background var(--transition);
}

.feature:hover .feature__icon {
  border-color: var(--color-border-light);
  background: var(--color-surface-raised);
}

.feature h3 { font-size: var(--font-size-base); margin-bottom: 0.5rem; }
.feature p { font-size: var(--font-size-sm); }

/* --- Timeline / Process --- */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline__step {
  position: relative;
  padding-left: 68px;
  padding-bottom: 3.5rem;
}

.timeline__step:last-child { padding-bottom: 0; }

.timeline__number {
  position: absolute;
  left: 0;
  top: 0;
  width: 48px;
  height: 48px;
  background: var(--color-accent-warm);
  color: var(--color-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
  z-index: 1;
  box-shadow: 0 2px 12px rgba(160,160,171,0.20), 0 1px 3px rgba(0,0,0,0.2);
}

.timeline__step h3 { margin-bottom: 0.5rem; }
.timeline__step p { font-size: var(--font-size-sm); }

@media (min-width: 768px) {
  .timeline::before { left: 50%; transform: translateX(-50%); }
  .timeline__step { width: 50%; padding-left: 0; padding-right: 3.5rem; }
  .timeline__step:nth-child(even) { margin-left: 50%; padding-left: 3.5rem; padding-right: 0; }
  .timeline__step:nth-child(odd) .timeline__number { right: -24px; left: auto; }
  .timeline__step:nth-child(even) .timeline__number { left: -24px; }
}

/* --- Accordion (FAQ) --- */
.accordion-group h3 {
  font-size: var(--font-size-lg);
  margin-bottom: 1rem;
  margin-top: 2.5rem;
  color: var(--color-accent-warm);
}

.accordion-group h3:first-child { margin-top: 0; }

.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: border-color var(--transition);
}

.accordion.open { border-color: var(--color-accent-warm); }

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.125rem 1.25rem;
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface);
  transition: background var(--transition), color var(--transition);
}

.accordion__trigger:hover { background: var(--color-surface-raised); }
.accordion.open .accordion__trigger { color: var(--color-accent-warm); }

.accordion__icon {
  font-size: 1.25rem;
  font-weight: 300;
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 1rem;
}

.accordion.open .accordion__icon { transform: rotate(45deg); }

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.accordion__content__inner {
  padding: 0 1.25rem 1.25rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* --- Gallery / Filter --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2.5rem;
  padding: 0.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
}

.filter-btn {
  padding: 0.5rem 1.125rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border: 1.5px solid transparent;
  border-radius: 100px;
  color: var(--color-text-light);
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.filter-btn:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.04);
}

.filter-btn.active {
  background: var(--color-white);
  color: var(--color-bg);
  border-color: var(--color-white);
  box-shadow: 0 1px 6px rgba(0,0,0,0.2);
}

.filter-btn__count {
  font-weight: 400;
  opacity: 0.55;
  margin-left: 0.125rem;
}

.filter-btn.active .filter-btn__count {
  opacity: 0.5;
}

@media (max-width: 767px) {
  .filter-bar {
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    border-radius: var(--radius-lg);
    padding: 0.375rem;
    gap: 0.375rem;
  }

  .filter-bar::-webkit-scrollbar { display: none; }

  .filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    min-height: 40px;
  }
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .gallery-grid { grid-template-columns: repeat(3, 1fr); } }

.gallery-grid .card {
  transition: opacity 0.3s ease, border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.gallery-grid .card.hidden { display: none; }

.project-lightbox[hidden] {
  display: none;
}

.lightbox-open {
  overflow: hidden;
}

.lightbox-open .site-header {
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
}

.lightbox-open .mobile-bar {
  display: none;
}

.project-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.project-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 10, 9, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  cursor: pointer;
}

.project-lightbox__dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 920px);
  max-height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255,255,255,0.04);
}

.project-lightbox__close {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 1.125rem;
  line-height: 1;
  transition: background var(--transition), color var(--transition);
}

.project-lightbox__close:hover,
.project-lightbox__close:focus-visible {
  background: rgba(255, 255, 255, 0.22);
  color: var(--color-white);
}

.project-lightbox__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 3rem 0.875rem 1.125rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-white);
  flex-shrink: 0;
}

.project-lightbox__header h2 {
  color: var(--color-white);
  margin-bottom: 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.project-lightbox__header h2::after {
  display: none;
}

.project-lightbox__count {
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
  margin-bottom: 0;
  white-space: nowrap;
}

.project-lightbox__nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: background var(--transition), transform var(--transition);
  font-size: 1.5rem;
}

.project-lightbox__nav:hover,
.project-lightbox__nav:focus-visible {
  background: rgba(255, 255, 255, 0.18);
}

.project-lightbox__nav:disabled {
  opacity: 0.25;
  cursor: default;
}

.project-lightbox__viewport {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
}

.project-lightbox__viewport img {
  max-width: 100%;
  max-height: min(74vh, 780px);
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.project-lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

.project-lightbox__nav--prev {
  left: 0.5rem;
}

.project-lightbox__nav--next {
  right: 0.5rem;
}

@media (max-width: 767px) {
  .project-lightbox {
    padding: 0.75rem;
  }

  .project-lightbox__header {
    padding: 0.75rem 2.75rem 0.75rem 0.875rem;
  }

  .project-lightbox__header h2 {
    font-size: var(--font-size-sm);
  }

  .project-lightbox__viewport img {
    max-height: min(65vh, 600px);
  }

  .project-lightbox__nav {
    width: 36px;
    height: 36px;
    font-size: 1.3rem;
  }

  .project-lightbox__nav--prev {
    left: 0.25rem;
  }

  .project-lightbox__nav--next {
    right: 0.25rem;
  }
}

/* --- CTA Banner --- */
.cta-banner {
  background: transparent;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-white);
  text-align: center;
  padding: 3.5rem 0;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.cta-banner h2::after { display: none; }

.cta-banner p {
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
  margin-bottom: 2.5rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

.cta-banner__phone {
  color: var(--color-white);
  font-weight: 700;
  font-size: var(--font-size-lg);
}

.cta-banner__phone:hover { color: var(--color-accent-warm); }

/* --- Forms --- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .form-grid--2col { grid-template-columns: repeat(2, 1fr); }
}

.form-group { display: flex; flex-direction: column; }
.form-group--full { grid-column: 1 / -1; }

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem 1rem;
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent-warm);
  box-shadow: 0 0 0 3px rgba(184, 160, 128, 0.15);
}

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

.form-success {
  display: none;
  text-align: center;
  padding: 3rem 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.form-success.show { display: block; }
.form-success h3 { color: var(--color-accent-warm); margin-bottom: 0.5rem; }

.form-error {
  display: none;
  font-size: var(--font-size-sm);
  color: var(--color-error);
  margin-top: 0.325rem;
}

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

.form-group--error input,
.form-group--error select,
.form-group--error textarea {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.12);
}

.form-group--success input,
.form-group--success select,
.form-group--success textarea {
  border-color: var(--color-success);
  box-shadow: 0 0 0 3px rgba(78, 173, 43, 0.15);
}

.form-banner-error {
  display: none;
  padding: 0.875rem 1.25rem;
  background: rgba(229, 62, 62, 0.08);
  border: 1px solid rgba(229, 62, 62, 0.25);
  border-radius: var(--radius);
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-bottom: 1.25rem;
}

.form-banner-error.show { display: block; }

/* --- Contact --- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 768px) {
  .contact-layout { grid-template-columns: 1.2fr 0.8fr; }
}

.contact-info__item { display: flex; gap: 0.75rem; margin-bottom: 1.5rem; }

.contact-info__icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-warm);
  font-size: 1.125rem;
}

.contact-info__item strong { display: block; margin-bottom: 0.125rem; }
.contact-info__item p { font-size: var(--font-size-sm); margin: 0; }

/* --- Team --- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

@media (min-width: 768px) { .team-grid { grid-template-columns: repeat(3, 1fr); } }

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

.team-member__photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 1rem;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
}

.team-member__photo img { width: 100%; height: 100%; object-fit: cover; }
.team-member h3 { font-size: var(--font-size-base); margin-bottom: 0.25rem; }
.team-member p { font-size: var(--font-size-sm); }

/* --- Values --- */
.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) { .values-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .values-grid { grid-template-columns: repeat(4, 1fr); } }

.value-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.value-card:hover {
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.value-card__icon { font-size: 2rem; margin-bottom: 1rem; }
.value-card h3 { margin-bottom: 0.5rem; }
.value-card p { font-size: var(--font-size-sm); }

/* --- Certifications --- */
.certifications {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: center;
  justify-content: center;
}

.cert-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.cert-badge strong { font-size: var(--font-size-sm); }
.cert-badge span { font-size: var(--font-size-sm); color: var(--color-text-light); }

/* --- Engagement --- */
.engagement-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) { .engagement-grid { grid-template-columns: repeat(3, 1fr); } }

.engagement-card {
  padding: 2rem;
  border-left: 3px solid var(--color-accent-warm);
  background: var(--color-surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  border-top: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.engagement-card:hover {
  border-left-color: var(--color-white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.engagement-card h3 { margin-bottom: 0.5rem; }
.engagement-card p { font-size: var(--font-size-sm); margin-bottom: 0; }

/* --- Story (about) --- */
.story-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) { .story-layout { grid-template-columns: 1fr 1fr; } }

.story-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  aspect-ratio: 4 / 3;
}

.story-image img { width: 100%; height: 100%; object-fit: cover; }

/* --- Intro text --- */
.intro-text { max-width: 800px; margin: 0 auto; }
.intro-text p { font-size: var(--font-size-lg); line-height: 1.8; }

/* --- Glow Burst --- */
.glow-burst {
  position: relative;
  z-index: 1;
}

.glow-burst {
  overflow: hidden;
}

.glow-burst::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 750%;
  height: 100%;
  background:
    radial-gradient(ellipse 60% 50% at 50% 50%,
      rgba(255, 255, 255, 0.12) 0%,
      rgba(255, 255, 255, 0.06) 25%,
      rgba(255, 255, 255, 0.025) 50%,
      rgba(255, 255, 255, 0.008) 70%,
      transparent 90%);
  pointer-events: none;
  z-index: 0;
}

.glow-burst > * {
  position: relative;
  z-index: 1;
}

/* --- Inline CTA --- */
.inline-cta {
  padding: 2.5rem 0 0;
}

/* --- Cert Row (homepage) --- */
.cert-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  padding: 1.75rem 0;
}

.cert-row .cert-badge {
  font-size: var(--font-size-sm);
  padding: 0.625rem 1rem;
}

/* --- Footer --- */
.site-footer {
  background: transparent;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-light);
  padding: 3.5rem 0 0;
}

.site-footer a { color: var(--color-text-light); }
.site-footer a:hover { color: var(--color-white); }

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; } }

.footer-col h4 {
  color: var(--color-text);
  font-size: var(--font-size-base);
  margin-bottom: 1.25rem;
}

.footer-col p { font-size: var(--font-size-sm); color: var(--color-text-light); }
.footer-col ul li { margin-bottom: 0.625rem; }
.footer-col ul a { font-size: var(--font-size-sm); }

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  padding: 1.5rem 0;
  font-size: var(--font-size-sm);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}

.footer-rbq { font-weight: 600; color: var(--color-text); }

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

.btn:focus-visible {
  outline: 2px solid var(--color-accent-warm);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(184, 160, 128, 0.2);
}

.btn--white:focus-visible,
.cta-banner .btn:focus-visible {
  outline-color: var(--color-white);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.15);
}

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

.accordion__trigger:focus-visible {
  outline: 2px solid var(--color-accent-warm);
  outline-offset: -2px;
}

.lang-switch:focus-visible {
  outline: 2px solid var(--color-accent-warm);
  outline-offset: 2px;
}

.site-header:not(.scrolled) .lang-switch:focus-visible,
.site-header:not(.scrolled) :focus-visible {
  outline-color: var(--color-white);
}

.menu-toggle:focus-visible {
  outline: 2px solid var(--color-accent-warm);
  outline-offset: 4px;
}

.site-header:not(.scrolled) .menu-toggle:focus-visible {
  outline-color: var(--color-white);
}

/* --- Mobile Action Bar --- */
.mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 98;
  padding: 0.625rem 1rem;
  padding-bottom: max(0.625rem, env(safe-area-inset-bottom));
  background: rgba(22, 22, 25, 0.88);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -2px 16px rgba(0,0,0,0.3);
  gap: 0.625rem;
  align-items: center;
}

.mobile-bar__phone {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: 100px;
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
  min-height: 44px;
  justify-content: center;
}

.mobile-bar__phone:hover {
  background: rgba(255,255,255,0.06);
  border-color: var(--color-text-light);
  color: var(--color-white);
}

.mobile-bar__cta {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  background: var(--color-accent);
  color: var(--color-white);
  border: 1px solid var(--color-accent);
  border-radius: 100px;
  transition: background var(--transition);
  white-space: nowrap;
  min-height: 44px;
}

.mobile-bar__cta:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
}

.mobile-bar.hidden { transform: translateY(100%); pointer-events: none; }

@media (max-width: 1099px) {
  .mobile-bar { display: flex; }
}

/* --- Mobile tightening --- */
@media (max-width: 1099px) {
  .site-footer { padding-bottom: 64px; }
}

@media (max-width: 767px) {
  .container { padding: 0 1.25rem; }
  .section { padding: 3rem 0; }
  .section-header { margin-bottom: 2rem; }
  .hero { min-height: 80vh; }
  .hero--short { min-height: 45vh; }
  .hero__content { padding: 2rem 0; }
  .hero__content p { margin-bottom: 1.5rem; }
  .trust-bar { padding: 1.5rem 0; }
  .feature { padding: 1.5rem 1rem; }
  .card__body { padding: 1.25rem; }
  .card-grid, .gallery-grid, .features-grid { gap: 1.25rem; }
  .timeline__step { padding-bottom: 2rem; }
  .cta-banner { padding: 2.5rem 0; }
  .cta-banner p { margin-bottom: 1.5rem; }
  .site-footer { padding-top: 2.5rem; }
  .footer-grid { gap: 1.5rem; padding-bottom: 1.5rem; }
  .contact-layout { gap: 1.5rem; }
  .story-layout { gap: 1.5rem; }
  .mobile-nav { padding: 1.5rem 1.25rem; }
  .mobile-nav a { padding: 0.75rem 0; font-size: var(--font-size-base); }
}

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

  html { scroll-behavior: auto; }

  .fade-in { opacity: 1; transform: none; }
  .stagger-children .card,
  .stagger-children .feature,
  .stagger-children .engagement-card,
  .stagger-children .value-card { opacity: 1; transform: none; }
}