/* ============================================
   WCE Climatisation — Design System V2
   Inspiration: aerothermie-services.fr (sobre, pro)
   ============================================ */

:root {
  --navy: #0A2540;
  --navy-dark: #061A2F;
  --navy-light: #16385C;
  --orange: #F59E0B;
  --orange-dark: #D97706;
  --white: #ffffff;
  --off: #F8FAFC;
  --grey-50: #F8FAFC;
  --grey-100: #F1F5F9;
  --grey-200: #E2E8F0;
  --grey-300: #CBD5E1;
  --grey-500: #64748B;
  --grey-700: #334155;
  --grey-900: #0F172A;
  --green: #10B981;
  --red: #EF4444;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.08);
  --shadow: 0 4px 12px rgba(15,23,42,.08), 0 2px 4px rgba(15,23,42,.04);
  --shadow-lg: 0 20px 40px -12px rgba(15,23,42,.18);
  --ease: cubic-bezier(.2,.7,.3,1);
  --max: 1280px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--grey-900);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: all .3s var(--ease);
}
.header.scrolled {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--grey-200);
  padding: 12px 0;
}
.header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 22px;
  color: var(--white);
  transition: color .3s;
}
.header.scrolled .logo { color: var(--navy); }
.logo__mark {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  border-radius: 12px;
  display: grid; place-items: center;
  color: var(--white);
  font-weight: 900;
  font-size: 18px;
  box-shadow: var(--shadow);
}
.logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.logo__text small { font-size: 11px; font-weight: 500; opacity: .8; letter-spacing: .04em; text-transform: uppercase; }
.nav { display: flex; gap: 4px; align-items: center; }
.nav a {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14.5px;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  transition: all .2s;
  white-space: nowrap;
}
.nav a:hover { background: rgba(255,255,255,.12); color: var(--white); }
.nav a.active { color: var(--white); background: rgba(255,255,255,.12); }
.header.scrolled .nav a { color: var(--grey-700); }
.header.scrolled .nav a:hover { background: var(--grey-100); color: var(--navy); }
.header.scrolled .nav a.active { background: var(--grey-100); color: var(--navy); }

.header__cta {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 22px;
  background: var(--orange);
  color: var(--white);
  border-radius: 999px;
  font-weight: 700;
  font-size: 14.5px;
  transition: all .2s;
  box-shadow: 0 4px 12px rgba(245,158,11,.3);
}
.header__cta:hover { background: var(--orange-dark); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(245,158,11,.4); }

.burger { display: none; background: none; border: 0; color: var(--white); font-size: 24px; cursor: pointer; }
.header.scrolled .burger { color: var(--navy); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  border: 0;
  cursor: pointer;
  transition: all .25s var(--ease);
  text-decoration: none;
}
.btn-primary { background: var(--orange); color: var(--white); box-shadow: 0 4px 14px rgba(245,158,11,.35); }
.btn-primary:hover { background: var(--orange-dark); transform: translateY(-2px); box-shadow: 0 8px 22px rgba(245,158,11,.45); }
.btn-ghost { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,.35); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: var(--white); }
.btn-dark { background: var(--navy); color: var(--white); }
.btn-dark:hover { background: var(--navy-dark); transform: translateY(-2px); }

/* ===== HERO (big photo, dark overlay) ===== */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px 0 80px;
  color: var(--white);
  overflow: hidden;
  display: flex;
  align-items: center;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  /* Voile plus léger pour laisser voir la photo du salon */
  background:
    linear-gradient(110deg, rgba(10,37,64,.78) 0%, rgba(10,37,64,.4) 45%, rgba(10,37,64,.15) 100%),
    linear-gradient(180deg, rgba(10,37,64,.05) 0%, rgba(10,37,64,.55) 100%);
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(255,255,255,.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 28px;
}
.hero__badge .dot { width: 8px; height: 8px; background: var(--green); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(16,185,129,.6); }
  50% { box-shadow: 0 0 0 8px rgba(16,185,129,0); }
}
.hero h1 {
  font-size: clamp(42px, 6.5vw, 84px);
  line-height: 1.02;
  font-weight: 800;
  letter-spacing: -.02em;
  max-width: 900px;
  margin-bottom: 28px;
}
.hero h1 em {
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  color: var(--orange);
}
.hero__sub {
  font-size: clamp(17px, 1.6vw, 21px);
  line-height: 1.55;
  max-width: 640px;
  color: rgba(255,255,255,.88);
  margin-bottom: 40px;
}
.hero__ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 60px; }
.hero__stats {
  display: flex;
  gap: 56px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,.15);
  max-width: 700px;
}
.hero__stat strong {
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: var(--orange);
  line-height: 1;
  margin-bottom: 6px;
}
.hero__stat span {
  font-size: 13px;
  color: rgba(255,255,255,.75);
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ===== TRUST BAR ===== */
.trust {
  background: var(--navy-dark);
  color: var(--white);
  padding: 28px 0;
  border-top: 1px solid rgba(255,255,255,.08);
}
.trust__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.trust__item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14.5px;
  font-weight: 500;
}
.trust__item svg { color: var(--green); flex-shrink: 0; }

/* ===== SECTIONS ===== */
.section { padding: 100px 0; }
.section--tight { padding: 70px 0; }
.section--dark { background: var(--navy); color: var(--white); }
.section--grey { background: var(--grey-50); }
.container { max-width: var(--max); margin: 0 auto; padding: 0 32px; }

.section__header { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.section__tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(245,158,11,.12);
  color: var(--orange-dark);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 18px;
}
.section--dark .section__tag { background: rgba(245,158,11,.2); color: var(--orange); }
.section__title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.1;
  margin-bottom: 18px;
}
.section__title em { font-family: 'Instrument Serif', Georgia, serif; font-style: italic; font-weight: 400; color: var(--orange); }
.section__sub { font-size: 18px; color: var(--grey-500); line-height: 1.6; }
.section--dark .section__sub { color: rgba(255,255,255,.75); }

/* ===== PRESENTATION BLOCK (short intro after hero) ===== */
.intro { padding: 90px 0; }
.intro__grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: center;
}
.intro__photo {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  box-shadow: var(--shadow-lg);
}
.intro__photo img { width: 100%; height: 100%; object-fit: cover; image-rendering: -webkit-optimize-contrast; image-rendering: crisp-edges; }
.intro__photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(10,37,64,.6) 100%);
}
.intro__tag-photo {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  z-index: 1;
}
.intro__content h2 {
  font-size: clamp(30px, 3.5vw, 44px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.15;
  margin-bottom: 24px;
}
.intro__content h2 em { font-family: 'Instrument Serif', Georgia, serif; font-style: italic; font-weight: 400; color: var(--orange); }
.intro__content p {
  font-size: 17px;
  color: var(--grey-700);
  line-height: 1.7;
  margin-bottom: 20px;
}
.intro__signature {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--grey-200);
}
.intro__signature-name { font-weight: 700; color: var(--navy); }
.intro__signature-role { font-size: 13px; color: var(--grey-500); }

/* ===== SERVICES ===== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: all .3s var(--ease);
  border: 1px solid var(--grey-200);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--grey-300);
}
.service-card__icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: grid; place-items: center;
  margin-bottom: 24px;
  color: var(--white);
  font-size: 24px;
}
.service-card--red .service-card__icon { background: linear-gradient(135deg, #ef4444, #dc2626); }
.service-card--navy .service-card__icon { background: linear-gradient(135deg, var(--navy), var(--navy-light)); }
.service-card--green .service-card__icon { background: linear-gradient(135deg, var(--green), #059669); }
.service-card h3 { font-size: 24px; font-weight: 800; margin-bottom: 12px; color: var(--navy); }
.service-card p { color: var(--grey-500); font-size: 15px; line-height: 1.65; margin-bottom: 24px; flex: 1; }
.service-card__list { list-style: none; margin-bottom: 24px; }
.service-card__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  font-size: 14px;
  color: var(--grey-700);
  border-bottom: 1px solid var(--grey-100);
}
.service-card__list li:last-child { border-bottom: 0; }
.service-card__list svg { color: var(--green); flex-shrink: 0; margin-top: 3px; }
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--navy);
  font-weight: 700;
  font-size: 14.5px;
  transition: gap .2s;
}
.service-card__link:hover { gap: 14px; color: var(--orange-dark); }

/* ===== KEY NUMBERS ===== */
.numbers {
  background: var(--navy);
  color: var(--white);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.numbers::before {
  content: "";
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(245,158,11,.15), transparent 70%);
  border-radius: 50%;
}
.numbers__grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}
.number {
  text-align: center;
  padding: 24px;
  border-right: 1px solid rgba(255,255,255,.1);
}
.number:last-child { border-right: 0; }
.number strong {
  display: block;
  font-size: clamp(44px, 5vw, 64px);
  font-weight: 800;
  color: var(--orange);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -.02em;
}
.number span {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,.8);
  line-height: 1.5;
}

/* ===== ZONE ===== */
.zone__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.zone__map {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
  position: relative;
  min-height: 400px;
}
.zone__chips { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 24px; }
.zone__chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: var(--grey-50);
  border-radius: 12px;
  font-weight: 600;
  font-size: 14.5px;
  color: var(--navy);
  border: 1px solid var(--grey-200);
}
.zone__chip strong { color: var(--orange-dark); font-size: 13px; font-weight: 800; }

/* ===== TESTIMONIALS ===== */
.testi__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testi {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--grey-200);
  position: relative;
  transition: all .3s var(--ease);
}
.testi:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.testi__stars { color: var(--orange); font-size: 18px; letter-spacing: 2px; margin-bottom: 18px; }
.testi__quote { font-size: 15px; line-height: 1.7; color: var(--grey-700); margin-bottom: 24px; }
.testi__author { display: flex; align-items: center; gap: 14px; padding-top: 20px; border-top: 1px solid var(--grey-200); }
.testi__avatar {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  border-radius: 50%;
  display: grid; place-items: center;
  color: var(--white);
  font-weight: 700;
}
.testi__author-info strong { display: block; color: var(--navy); font-size: 14.5px; }
.testi__author-info small { font-size: 12.5px; color: var(--green); font-weight: 600; }

/* ===== FAQ ===== */
.faq { max-width: 820px; margin: 0 auto; }
.faq details {
  background: var(--white);
  border: 1px solid var(--grey-200);
  border-radius: 14px;
  margin-bottom: 12px;
  transition: all .2s;
}
.faq details[open] { border-color: var(--orange); box-shadow: var(--shadow); }
.faq summary {
  padding: 22px 28px;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-weight: 700;
  color: var(--navy);
  font-size: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 300;
  color: var(--orange);
  transition: transform .3s;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > p, .faq details > div {
  padding: 0 28px 24px;
  color: var(--grey-700);
  line-height: 1.7;
  font-size: 15px;
}

/* ===== CTA BAND ===== */
.cta-band {
  background: linear-gradient(120deg, var(--orange) 0%, var(--orange-dark) 100%);
  color: var(--white);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  top: 50%; left: 10%;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(255,255,255,.15), transparent 70%);
  border-radius: 50%;
  transform: translateY(-50%);
}
.cta-band__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  flex-wrap: wrap;
}
.cta-band h2 { font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; line-height: 1.15; margin-bottom: 8px; }
.cta-band p { opacity: .95; font-size: 17px; }
.cta-band__phone {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--white);
  color: var(--navy);
  padding: 18px 32px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 22px;
  font-weight: 800;
  transition: all .25s var(--ease);
  box-shadow: 0 10px 30px rgba(0,0,0,.2);
}
.cta-band__phone:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 16px 36px rgba(0,0,0,.28); }
.cta-band__phone svg { color: var(--orange); }

/* ===== FOOTER ===== */
.footer { background: var(--navy-dark); color: rgba(255,255,255,.75); padding: 70px 0 32px; }
.footer__grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer__logo { color: var(--white); font-size: 24px; font-weight: 800; display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.footer__about { font-size: 14px; line-height: 1.7; margin-bottom: 20px; }
.footer__socials { display: flex; gap: 10px; }
.footer__socials a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  display: grid; place-items: center;
  color: var(--white);
  transition: all .2s;
}
.footer__socials a:hover { background: var(--orange); transform: translateY(-2px); }
.footer h4 { color: var(--white); font-size: 15px; font-weight: 700; margin-bottom: 18px; text-transform: uppercase; letter-spacing: .05em; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 10px; }
.footer ul a { font-size: 14.5px; transition: color .2s; }
.footer ul a:hover { color: var(--orange); }
.footer__contact-item { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; font-size: 14px; }
.footer__contact-item svg { color: var(--orange); flex-shrink: 0; margin-top: 3px; }
.footer__bottom {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 32px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  font-size: 13px;
  color: rgba(255,255,255,.5);
  flex-wrap: wrap;
}

/* ===== STICKY MOBILE CTA ===== */
.sticky-mobile { display: none; }

/* ===== REVEAL ANIM ===== */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .nav { display: none; }
  .burger { display: block; }
  .numbers__grid { grid-template-columns: repeat(2, 1fr); }
  .number:nth-child(2) { border-right: 0; }
  .trust__inner { grid-template-columns: repeat(2, 1fr); }
  .services__grid, .testi__grid { grid-template-columns: 1fr; }
  .intro__grid, .zone__grid { grid-template-columns: 1fr; gap: 48px; }
  .footer__grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
}
@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .hero { padding: 120px 0 60px; }
  .hero__stats { gap: 32px; }
  .hero__stat strong { font-size: 28px; }
  .numbers__grid { grid-template-columns: 1fr; gap: 8px; }
  .number { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.1); padding: 20px; }
  .number:last-child { border-bottom: 0; }
  .trust__inner { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .cta-band__inner { flex-direction: column; text-align: center; }
  .sticky-mobile {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--white);
    padding: 12px;
    gap: 10px;
    box-shadow: 0 -4px 20px rgba(0,0,0,.1);
    z-index: 900;
  }
  .sticky-mobile .btn { flex: 1; justify-content: center; padding: 14px; }
  body { padding-bottom: 80px; }
  .header__cta { padding: 10px 16px; font-size: 13px; }
}