/* ══════════════════════════════════════════
   KLIMASUD — style.css
   ══════════════════════════════════════════ */

/* ── VARIABLES ── */
:root {
  --blue: #0284c7;
  --blue-light: #38bdf8;
  --blue-dark: #075985;
  --cyan: #0891b2;
  --orange: #f97316;
  --green: #16a34a;
  --dark: #dcefff;
  --darker: #eaf6ff;
  --card: #ffffff;
  --text: #0b2947;
  --muted: #4f6b85;
  --border: rgba(2, 132, 199, 0.18);
  --glow: rgba(2, 132, 199, 0.28);
  --shadow: rgba(15, 65, 110, 0.14);
}

/* ── RESET & BASE ── */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(180deg, #eaf6ff 0%, #f6fbff 35%, #e9f5ff 100%);
  color: var(--text);
  font-family: 'Nunito', sans-serif;
  overflow-x: hidden;
}

/* ── NAVIGATION ── */
nav {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1200px, 92%);
  z-index: 100;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 26px;
  box-shadow: 0 10px 34px var(--shadow);
  transition: top .3s ease, padding .3s ease, background .3s ease, box-shadow .3s ease;
}

nav.nav-scrolled {
  top: 10px;
  padding: 9px 26px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 14px 40px var(--shadow);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo img {
  height: 52px;
  border-radius: 8px;
}

.nav-brand {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.7rem;
  letter-spacing: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--orange), var(--blue));
  background-size: 300% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  position: relative;
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
  font-size: .9rem;
  letter-spacing: .5px;
  transition: color .2s;
  text-transform: uppercase;
}

.nav-links a:hover {
  color: var(--blue);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  border-radius: 2px;
  transition: width .25s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  background: linear-gradient(135deg, var(--blue-light), var(--blue));
  color: #fff;
  padding: 10px 22px;
  border: none;
  border-radius: 50px;
  font-weight: 800;
  font-family: 'Nunito', sans-serif;
  text-decoration: none;
  font-size: .9rem;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 4px 20px var(--glow);
  position: relative;
  overflow: hidden;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px var(--glow);
}

/* ── NAV TOGGLE (BURGER) ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: 92px;
  left: 4%;
  right: 4%;
  z-index: 99;
  list-style: none;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 20px 50px var(--shadow);
  flex-direction: column;
  padding: 10px 22px 16px;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .5px;
  text-transform: uppercase;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

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

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 5% 80px;
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(2, 132, 199, .16) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 10% 70%, rgba(249, 115, 22, .12) 0%, transparent 70%),
    var(--darker);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(2, 132, 199, .16) 1.5px, transparent 1.5px);
  background-size: 38px 38px;
  animation: gridMove 20s linear infinite;
}

.hero::after {
  content: '';
  position: absolute;
  top: -100px;
  right: 6%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, .35) 0%, transparent 70%);
  filter: blur(60px);
  animation: driftA 18s ease-in-out infinite;
  pointer-events: none;
}

@keyframes gridMove {
  0%   { background-position: 0 0; }
  100% { background-position: 38px 38px; }
}

@keyframes driftA {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(50px, 40px) scale(1.15); }
}

@keyframes driftB {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(-40px, -30px) scale(1.1); }
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 60px;
  max-width: 1200px;
  margin: auto;
  position: relative;
  z-index: 1;
}

.hero-text {
  flex: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .65);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 6px 18px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: .5px;
  margin-bottom: 22px;
  text-transform: uppercase;
  box-shadow: 0 4px 16px var(--shadow);
}

.hero-badge span {
  width: 8px;
  height: 8px;
  background: var(--blue);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .5; transform: scale(1.4); }
}

h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 1.0;
  letter-spacing: 2px;
  margin-bottom: 18px;
  color: var(--text);
}

h1 .accent-blue {
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--blue-dark));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 5s ease infinite;
}

h1 .accent-orange { color: var(--orange); }

.hero-sub {
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 36px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--orange), #ea580c);
  color: #fff;
  padding: 14px 32px;
  border: none;
  border-radius: 50px;
  font-weight: 800;
  font-family: 'Nunito', sans-serif;
  text-decoration: none;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 10px 28px rgba(249, 115, 22, .35);
  transition: transform .2s, box-shadow .2s;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(249, 115, 22, .48);
}

.btn-primary::after,
.form-submit::after,
.nav-cta::after {
  content: '';
  position: absolute;
  top: 0;
  left: -75%;
  width: 45%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, .6), transparent);
  transform: skewX(-20deg);
  transition: left .6s ease;
}

.btn-primary:hover::after,
.form-submit:hover::after,
.nav-cta:hover::after {
  left: 125%;
}

.btn-secondary {
  border: 2px solid var(--blue);
  color: var(--blue);
  padding: 12px 30px;
  border-radius: 50px;
  font-weight: 800;
  text-decoration: none;
  font-size: 1rem;
  transition: background .2s, color .2s, transform .2s, box-shadow .2s;
  background: rgba(255, 255, 255, .55);
}

.btn-secondary:hover {
  background: var(--blue);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 10px 28px var(--glow);
}

.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-logo-wrap {
  position: relative;
  width: 340px;
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: bob 4.5s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-16px); }
}

.hero-logo-wrap::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--blue), var(--orange), var(--green), var(--blue));
  animation: spin 6s linear infinite;
  opacity: .55;
  filter: blur(6px);
}

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

.hero-logo-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #ffffff;
  transform: scale(.92);
  box-shadow: 0 20px 50px var(--shadow);
}

.hero-logo-wrap img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* ── HERO PHOTO SHOWCASE ── */
.hero-photo-stack {
  position: relative;
  width: 360px;
  height: 420px;
}

.hero-photo {
  position: absolute;
  object-fit: cover;
  border-radius: 24px;
  border: 6px solid #fff;
  box-shadow: 0 30px 60px var(--shadow);
}

.hero-photo-main {
  width: 300px;
  height: 380px;
  top: 0;
  right: 0;
  z-index: 1;
  animation: bob 5.5s ease-in-out infinite;
}

.hero-photo-accent {
  width: 190px;
  height: 150px;
  bottom: -10px;
  left: 0;
  z-index: 2;
  animation: bob 5.5s ease-in-out infinite reverse;
  animation-delay: -2.2s;
}

.hero-photo-badge {
  position: absolute;
  bottom: 26px;
  right: 26px;
  z-index: 3;
  background: #ffffff;
  padding: 10px 18px;
  border-radius: 14px;
  font-weight: 800;
  font-size: .82rem;
  color: var(--blue);
  box-shadow: 0 12px 28px var(--shadow);
  animation: pulse 3.5s ease-in-out infinite;
}

/* ── WAVE DIVIDERS ── */
.wave-divider {
  display: block;
  width: 100%;
  line-height: 0;
  position: relative;
  z-index: 2;
  margin-top: -2px;
}

.wave-divider svg {
  width: 100%;
  height: 60px;
  display: block;
}

/* ── STATS ── */
.stats {
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 5%;
}

.stats-inner {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
  max-width: 900px;
  margin: auto;
}

.stat {
  text-align: center;
}

.stat-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3rem;
  background: linear-gradient(135deg, var(--blue), var(--cyan), var(--orange));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 6s ease infinite;
}

.stat-label {
  color: var(--muted);
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* ── SECTIONS COMMUNES ── */
section {
  padding: 90px 5%;
}

.section-label {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 3px;
  font-size: .9rem;
  color: var(--blue);
  text-transform: uppercase;
  margin-bottom: 10px;
}

h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: 1.5px;
  margin-bottom: 14px;
  color: var(--text);
}

.section-sub {
  color: var(--muted);
  max-width: 540px;
  line-height: 1.7;
  margin-bottom: 54px;
}

/* ── SERVICES ── */
#services {
  position: relative;
}

#services::before {
  content: '';
  position: absolute;
  top: 40px;
  right: 4%;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(249, 115, 22, .16) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
  animation: driftA 18s ease-in-out infinite;
}

#services > div {
  position: relative;
  z-index: 1;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 1200px;
  margin: auto;
}

@media (min-width: 700px) {
  .services-grid .service-card:first-child {
    grid-column: span 2;
    display: flex;
    align-items: center;
    gap: 28px;
  }

  .services-grid .service-card:first-child .service-icon {
    margin-bottom: 0;
    font-size: 3.6rem;
  }
}

.service-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  transition: transform .25s, box-shadow .25s, border-color .25s;
  cursor: default;
  box-shadow: 0 4px 20px var(--shadow);
}

.service-card:hover {
  transform: translateY(-8px) scale(1.015);
  box-shadow: 0 24px 50px var(--shadow), 0 0 40px var(--glow);
  border-color: var(--blue);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--orange));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  font-size: 2.8rem;
  margin-bottom: 20px;
  display: block;
  transition: transform .35s ease;
}

.service-card:hover .service-icon {
  transform: scale(1.15) rotate(-6deg);
}

.service-card h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  letter-spacing: 1px;
  margin-bottom: 10px;
  color: var(--text);
}

.service-card p {
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.65;
}

.service-tag {
  display: inline-block;
  margin-top: 18px;
  font-size: .78rem;
  font-weight: 700;
  background: rgba(2, 132, 199, .1);
  color: var(--blue);
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: .3px;
}

/* ── MARQUES ── */
.brands {
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 50px 5%;
  text-align: center;
}

.brands h3 {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 2px;
  color: var(--muted);
  margin-bottom: 32px;
  font-size: 1rem;
}

.brands-row {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.brand-pill {
  background: rgba(2, 132, 199, .05);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 14px 28px;
  font-weight: 800;
  font-size: .95rem;
  letter-spacing: 1px;
  color: var(--muted);
  transition: color .2s, border-color .2s, background .2s, transform .2s, box-shadow .2s;
}

.brand-pill:hover {
  color: var(--blue-dark);
  border-color: var(--blue);
  background: rgba(2, 132, 199, .1);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px var(--glow);
}

/* ── RÉALISATIONS ── */
#realisations {
  position: relative;
  background: var(--dark);
}

#realisations::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 5%;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, .3) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
  animation: driftB 22s ease-in-out infinite;
}

#realisations > div {
  position: relative;
  z-index: 1;
}

.gallery-grid {
  columns: 3 280px;
  column-gap: 22px;
  max-width: 1200px;
  margin: auto;
}

.gallery-item {
  position: relative;
  display: block;
  break-inside: avoid;
  margin-bottom: 22px;
  border-radius: 20px;
  overflow: hidden;
  cursor: zoom-in;
  box-shadow: 0 6px 24px var(--shadow);
  transition: transform .3s ease, box-shadow .3s ease;
}

.gallery-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 48px var(--shadow), 0 0 30px var(--glow);
}

.gallery-item img {
  width: 100%;
  display: block;
  transition: transform .5s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(0deg, rgba(6, 20, 35, .9) 10%, transparent 100%);
  color: #fff;
  padding: 40px 16px 14px;
}

.gallery-caption-title {
  font-weight: 800;
  font-size: .98rem;
  margin-bottom: 3px;
}

.gallery-caption-sub {
  font-size: .8rem;
  opacity: .88;
}

.gallery-note {
  text-align: center;
  color: var(--muted);
  font-size: .88rem;
  margin-top: 32px;
  font-style: italic;
}

/* ── LIGHTBOX ── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(4, 16, 30, .92);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 500;
  padding: 40px;
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-width: 90vw;
  max-height: 78vh;
  border-radius: 14px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .5);
}

.lightbox-caption {
  color: #fff;
  margin-top: 18px;
  font-weight: 700;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 28px;
  background: rgba(255, 255, 255, .15);
  border: none;
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  transition: background .2s ease;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, .3);
}

/* ── MODALE DEVIS ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 16, 30, .55);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 600;
  padding: 24px;
}

.modal-overlay.open {
  display: flex;
}

.modal-card {
  position: relative;
  background: var(--darker);
  border-radius: 24px;
  padding: 40px;
  width: 100%;
  max-width: 500px;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: 0 40px 80px rgba(4, 16, 30, .4);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: rgba(2, 132, 199, .1);
  border: none;
  color: var(--text);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-size: 1.05rem;
  cursor: pointer;
  transition: background .2s ease;
}

.modal-close:hover {
  background: rgba(2, 132, 199, .2);
}

.devis-cta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.devis-cta-text {
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 26px;
}

@media (max-width: 600px) {
  .modal-card {
    padding: 28px 22px;
  }
}

/* ── POURQUOI NOUS ── */
#pourquoi {
  background: var(--darker) !important;
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  max-width: 1100px;
  margin: auto;
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.why-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 24px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
  box-shadow: 0 4px 18px var(--shadow);
}

.why-item:hover {
  border-color: var(--orange);
  transform: translateX(6px);
  box-shadow: 0 12px 30px rgba(249, 115, 22, .18);
}

.why-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.why-item h4 {
  font-weight: 800;
  margin-bottom: 5px;
  font-size: 1rem;
  color: var(--text);
}

.why-item p {
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.6;
}

.why-visual {
  position: relative;
}

.why-card-big {
  position: relative;
  border-radius: 24px;
  padding: 48px 36px;
  text-align: center;
  box-shadow: 0 20px 50px var(--shadow);
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background-image:
    linear-gradient(0deg, rgba(6, 20, 35, .88) 0%, rgba(6, 20, 35, .25) 60%, rgba(6, 20, 35, .1) 100%),
    url('photos/toiture-fujitsu-coucher-soleil.jpg');
  background-size: cover;
  background-position: center;
  color: #fff;
}

.why-card-big .why-big-label,
.why-card-big .why-big-sub {
  position: relative;
  z-index: 1;
  color: #fff;
}

.why-card-big .why-big-sub {
  opacity: .92;
}

.why-big-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 7rem;
  line-height: 1;
  background: linear-gradient(135deg, var(--blue), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.why-big-label {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.why-big-sub {
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.6;
}

/* ── FAQ ── */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
  box-shadow: 0 4px 16px var(--shadow);
}

.faq-item:hover {
  border-color: var(--blue);
  box-shadow: 0 10px 30px var(--glow);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  color: var(--text);
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-align: left;
  padding: 22px 24px;
  cursor: pointer;
}

.faq-icon {
  flex-shrink: 0;
  font-size: 1.3rem;
  color: var(--blue);
  transition: transform .25s;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
  padding: 0 24px;
}

.faq-item.open .faq-answer {
  max-height: 240px;
  padding: 0 24px 22px;
}

.faq-answer p {
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.65;
}

/* ── ZONE ── */
.zone {
  text-align: center;
  background:
    radial-gradient(ellipse 60% 60% at 50% 100%, rgba(2, 132, 199, .14) 0%, transparent 70%),
    var(--darker);
}

.zone-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 48px;
}

.chip {
  background: rgba(255, 255, 255, .65);
  border: 1px solid rgba(2, 132, 199, .3);
  border-radius: 50px;
  padding: 10px 22px;
  font-weight: 700;
  font-size: .9rem;
  color: var(--blue);
  transition: background .2s, transform .2s, box-shadow .2s;
  box-shadow: 0 3px 12px var(--shadow);
}

.chip:hover {
  background: #ffffff;
  transform: translateY(-3px);
  box-shadow: 0 10px 24px var(--glow);
}

.zone-note {
  color: var(--muted);
  font-size: .95rem;
}

/* ── CONTACT ── */
.contact {
  background: var(--card);
  border-top: 1px solid var(--border);
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  bottom: 30px;
  left: 3%;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(8, 145, 178, .18) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
  animation: driftB 20s ease-in-out infinite;
}

.contact-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
  max-width: 1100px;
  margin: auto;
}

.contact-info h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: 1.5px;
  margin-bottom: 14px;
}

.contact-info p {
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: rgba(2, 132, 199, .05);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 22px;
  text-decoration: none;
  color: var(--text);
  transition: border-color .2s, background .2s, transform .2s, box-shadow .2s;
}

.contact-card:hover {
  border-color: var(--blue);
  background: rgba(2, 132, 199, .09);
  transform: translateY(-3px);
  box-shadow: 0 12px 28px var(--glow);
}

.contact-card-icon {
  font-size: 1.6rem;
}

.contact-card-label {
  font-size: .78rem;
  color: var(--muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 3px;
}

.contact-card-val {
  font-weight: 800;
  font-size: 1rem;
}

/* ── FORMULAIRE ── */
.contact-form {
  background: var(--darker);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px;
  box-shadow: 0 10px 34px var(--shadow);
}

.form-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  letter-spacing: 1px;
  margin-bottom: 24px;
  color: var(--text);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 18px;
}

label {
  display: block;
  font-size: .82rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 7px;
}

input,
select,
textarea {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 13px 16px;
  color: var(--text);
  font-family: 'Nunito', sans-serif;
  font-size: .95rem;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--glow);
}

select option {
  background: #ffffff;
}

textarea {
  resize: vertical;
  min-height: 110px;
}

.form-submit {
  width: 100%;
  background: linear-gradient(135deg, var(--blue-light), var(--blue));
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 15px;
  font-family: 'Nunito', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  letter-spacing: .5px;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 10px 28px var(--glow);
  position: relative;
  overflow: hidden;
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px var(--glow);
}

/* ── FOOTER ── */
footer {
  background: var(--dark);
  border-top: 1px solid var(--border);
  padding: 40px 5%;
  text-align: center;
}

.footer-brand {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem;
  letter-spacing: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--orange), var(--blue));
  background-size: 300% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 8s ease infinite;
  margin-bottom: 8px;
}

footer p {
  color: var(--muted);
  font-size: .85rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin: 16px 0;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: .85rem;
  font-weight: 700;
  transition: color .2s;
}

.footer-links a:hover {
  color: var(--blue);
}

.footer-copy {
  margin-top: 8px;
  font-size: .78rem !important;
}

/* ── SCROLL PROGRESS ── */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--orange));
  z-index: 999;
  transition: width .1s linear;
}

/* ── BACK TO TOP ── */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--blue-light), var(--blue));
  color: #fff;
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 8px 22px var(--glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity .3s ease, transform .3s ease, visibility .3s ease, box-shadow .2s ease;
  z-index: 90;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  box-shadow: 0 12px 28px var(--glow);
  transform: translateY(-3px);
}

/* ── DEVIS FLOTTANT ── */
.devis-float {
  position: fixed;
  bottom: 28px;
  right: 96px;
  z-index: 90;
  background: linear-gradient(135deg, var(--orange), #ea580c);
  color: #fff;
  border: none;
  padding: 14px 24px;
  border-radius: 50px;
  font-weight: 800;
  font-family: 'Nunito', sans-serif;
  font-size: .9rem;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(249, 115, 22, .45);
  transition: transform .2s ease, box-shadow .2s ease;
  animation: floatPulseOrange 2.8s ease-in-out infinite;
}

.devis-float:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(249, 115, 22, .6);
}

@keyframes floatPulseOrange {
  0%, 100% { box-shadow: 0 8px 24px rgba(249, 115, 22, .45); }
  50%      { box-shadow: 0 8px 32px rgba(249, 115, 22, .7); }
}

/* ── WHATSAPP FLOTTANT ── */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  left: 28px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25d366, #128c4a);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, .45);
  z-index: 90;
  animation: floatPulse 2.8s ease-in-out infinite;
  transition: transform .2s ease, box-shadow .2s ease;
}

.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 30px rgba(37, 211, 102, .6);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
}

@keyframes floatPulse {
  0%, 100% { box-shadow: 0 8px 24px rgba(37, 211, 102, .45); }
  50%      { box-shadow: 0 8px 32px rgba(37, 211, 102, .75); }
}

/* ── ANIMATIONS ── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}

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

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-inner,
  .why-grid,
  .contact-inner {
    flex-direction: column;
    grid-template-columns: 1fr;
  }

  .hero-visual {
    display: none;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }
}

@media (min-width: 901px) {
  .nav-mobile {
    display: none !important;
  }
}

@media (max-width: 600px) {
  .stats-inner {
    gap: 30px;
  }

  .hero-btns {
    flex-direction: column;
  }

  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 20px;
    left: 20px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
  }

  .devis-float {
    bottom: 82px;
    left: 20px;
    right: auto;
    padding: 11px 18px;
    font-size: .8rem;
  }
}