:root {
  --navy-950: #03101f;
  --navy-900: #071a33;
  --navy-800: #0a2948;
  --navy-700: #104164;
  --blue-600: #078fce;
  --cyan-500: #18b9e6;
  --cyan-300: #76dcf3;
  --sky-100: #e6f7fc;
  --ink: #10283e;
  --muted: #587084;
  --line: #d8e5ed;
  --paper: #f5f9fc;
  --white: #ffffff;
  --success: #117a58;
  --shadow: 0 24px 70px rgba(5, 31, 54, .12);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 400 1rem/1.7 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 2000; padding: 10px 16px; background: var(--white); color: var(--navy-900); border-radius: 10px; }
.skip-link:focus { top: 16px; }
.eyebrow { margin: 0 0 12px; color: var(--blue-600); font-weight: 800; font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; }
.eyebrow-light { color: var(--cyan-300); }
h1, h2, h3 { margin: 0; line-height: 1.08; text-wrap: balance; }
h1 { font-size: clamp(2.8rem, 6.4vw, 5.9rem); letter-spacing: -.062em; }
h2 { font-size: clamp(2.1rem, 4vw, 3.8rem); letter-spacing: -.045em; }
h3 { font-size: 1.25rem; letter-spacing: -.02em; }
p { margin: 0; }
.lead { max-width: 720px; color: var(--muted); font-size: 1.08rem; }
.section { padding-block: 92px; }
.section-white { background: var(--white); }
.section-dark { color: var(--white); background: radial-gradient(circle at 12% 16%, rgba(24,185,230,.22), transparent 26%), var(--navy-950); }
.section-head { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 48px; align-items: end; margin-bottom: 44px; }
.section-head > p { color: var(--muted); }
.section-dark .section-head > p { color: rgba(255,255,255,.7); }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 9px; padding: 0 20px; border: 1px solid transparent; border-radius: 12px; font-weight: 800; transition: transform .16s ease, background .16s ease, border-color .16s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: linear-gradient(135deg, var(--blue-600), var(--cyan-500)); box-shadow: 0 15px 36px rgba(7,143,206,.27); }
.button-secondary { color: var(--navy-900); background: var(--white); border-color: var(--line); }
.button-dark { color: var(--white); background: var(--navy-900); }
.button-ghost { color: var(--white); background: rgba(3,16,31,.45); border-color: rgba(255,255,255,.3); backdrop-filter: blur(10px); }
.text-link { color: var(--blue-600); font-weight: 800; }
.text-link:hover { text-decoration: underline; }
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 14px 45px rgba(5,31,54,.06); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 1000; color: var(--white); background: rgba(3,16,31,.95); border-bottom: 1px solid rgba(255,255,255,.12); backdrop-filter: blur(14px); }
.header-row { min-height: 82px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; margin-right: auto; white-space: nowrap; }
.brand img { width: 48px; height: 48px; object-fit: contain; }
.brand-copy { display: grid; line-height: 1.05; }
.brand-copy strong { color: var(--white); font-size: 1.05rem; letter-spacing: -.01em; }
.brand-copy small { margin-top: 4px; color: var(--cyan-300); font-size: .68rem; font-weight: 750; letter-spacing: .09em; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: 5px; }
.main-nav a { padding: 10px 11px; border-radius: 9px; color: rgba(255,255,255,.78); font-size: .9rem; font-weight: 680; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--white); background: rgba(255,255,255,.09); }
.header-phone { color: var(--navy-950); background: var(--cyan-300); min-height: 42px; padding-inline: 14px; }
.menu-button { display: none; width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.22); border-radius: 10px; color: var(--white); background: transparent; font-size: 1.35rem; }

/* Hero */
.hero { position: relative; overflow: hidden; color: var(--white); background: var(--navy-950); }
.hero-main { min-height: 720px; display: grid; grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr); align-items: stretch; }
.hero-copy { position: relative; z-index: 2; align-self: center; padding: 78px 54px 82px 0; }
.hero-copy h1 { max-width: 700px; }
.hero-copy .intro { max-width: 620px; margin-top: 25px; color: rgba(255,255,255,.76); font-size: 1.12rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-zone { display: inline-flex; align-items: center; gap: 9px; margin-top: 24px; color: var(--cyan-300); font-size: .9rem; font-weight: 750; }
.hero-zone::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan-500); box-shadow: 0 0 0 7px rgba(24,185,230,.15); }
.hero-visual { position: relative; min-height: 720px; margin-right: calc((100vw - min(1180px, calc(100vw - 40px))) / -2); }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; object-position: 48% center; }
.hero-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--navy-950) 0%, transparent 27%), linear-gradient(0deg, rgba(3,16,31,.58), transparent 40%); }
.hero-card { position: absolute; z-index: 2; right: 34px; bottom: 34px; width: min(340px, calc(100% - 68px)); padding: 22px; background: rgba(3,16,31,.78); border: 1px solid rgba(255,255,255,.2); border-radius: 18px; backdrop-filter: blur(12px); }
.hero-card strong { display: block; margin-bottom: 4px; color: var(--cyan-300); font-size: 1.05rem; }
.hero-card span { color: rgba(255,255,255,.73); font-size: .9rem; }
.proof-strip { border-bottom: 1px solid var(--line); background: var(--white); }
.proof-grid { min-height: 102px; display: grid; grid-template-columns: repeat(3, 1fr); align-items: center; }
.proof-item { padding: 16px 30px; border-right: 1px solid var(--line); }
.proof-item:first-child { padding-left: 0; }
.proof-item:last-child { border-right: 0; }
.proof-item strong { display: block; color: var(--navy-900); }
.proof-item span { color: var(--muted); font-size: .88rem; }

/* Inner pages */
.inner-hero { color: var(--white); background: radial-gradient(circle at 80% 25%, rgba(24,185,230,.28), transparent 28%), linear-gradient(135deg, var(--navy-950), var(--navy-800)); }
.inner-hero-content { padding-block: 86px 76px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; color: rgba(255,255,255,.58); font-size: .84rem; }
.breadcrumbs a:hover { color: var(--white); }
.inner-hero h1 { max-width: 900px; font-size: clamp(2.7rem, 5.4vw, 5rem); }
.inner-hero .intro { max-width: 760px; margin-top: 22px; color: rgba(255,255,255,.75); font-size: 1.1rem; }
.inner-hero .hero-actions { margin-top: 28px; }

/* Services */
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.service-card { min-height: 300px; padding: 30px; display: flex; flex-direction: column; }
.service-number { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; color: var(--blue-600); background: var(--sky-100); font-weight: 900; }
.service-card h3 { margin-top: 48px; font-size: 1.45rem; }
.service-card p { margin-top: 12px; color: var(--muted); }
.service-card .text-link { margin-top: auto; padding-top: 28px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { padding: 26px; }
.feature h3 { margin-bottom: 10px; }
.feature p { color: var(--muted); }
.check-list { display: grid; gap: 13px; margin: 24px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 30px; color: var(--muted); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; color: var(--success); font-weight: 900; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .75fr); gap: 54px; align-items: start; }
.prose h2 { margin-bottom: 22px; font-size: clamp(2rem, 3.2vw, 3rem); }
.prose h3 { margin: 34px 0 10px; }
.prose p + p { margin-top: 16px; }
.prose p, .prose li { color: var(--muted); }
.aside-card { position: sticky; top: 108px; padding: 28px; }
.aside-card h3 { margin-bottom: 13px; }
.aside-card p { color: var(--muted); }
.aside-card .button { width: 100%; margin-top: 22px; }

/* Zones */
.zones-layout { display: grid; grid-template-columns: minmax(0, .92fr) minmax(430px, 1.08fr); gap: 40px; align-items: center; }
.zone-list { display: grid; gap: 14px; margin-top: 30px; }
.zone-item { display: grid; grid-template-columns: 54px 1fr; gap: 16px; align-items: center; padding: 17px; border: 1px solid var(--line); border-radius: 16px; background: var(--white); }
.zone-item b { display: block; }
.zone-item span { color: var(--muted); font-size: .88rem; }
.zone-index { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 14px; color: var(--white); background: var(--navy-900); font-weight: 900; }
.zone-item:first-child .zone-index { color: var(--navy-950); background: var(--cyan-300); }
.zone-diagram { position: relative; min-height: 460px; overflow: hidden; border-radius: 28px; color: var(--white); background: linear-gradient(145deg, #0a2948, #03101f); box-shadow: var(--shadow); }
.zone-diagram::before { content: ""; position: absolute; inset: 0; opacity: .14; background-image: linear-gradient(rgba(255,255,255,.38) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.38) 1px, transparent 1px); background-size: 52px 52px; }
.map-label { position: absolute; z-index: 2; padding: 7px 10px; border-radius: 9px; background: rgba(3,16,31,.78); border: 1px solid rgba(255,255,255,.12); font-size: .78rem; font-weight: 750; }
.map-label::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: var(--cyan-300); }
.map-oleron { left: 12%; top: 38%; color: var(--cyan-300); }
.map-larochelle { left: 44%; top: 14%; }
.map-rochefort { left: 52%; top: 39%; }
.map-royan { left: 45%; top: 70%; }
.map-saintes { left: 72%; top: 62%; }
.map-origin { position: absolute; z-index: 1; left: 21%; top: 45%; width: 135px; height: 135px; border: 1px solid rgba(118,220,243,.55); border-radius: 50%; box-shadow: 0 0 0 48px rgba(24,185,230,.1), 0 0 0 112px rgba(24,185,230,.045); }
.zone-note { position: absolute; left: 28px; bottom: 24px; z-index: 2; max-width: 310px; color: rgba(255,255,255,.66); font-size: .78rem; }
.city-links { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.city-links a { padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--navy-700); background: var(--white); font-size: .84rem; font-weight: 700; }
.city-links a:hover { color: var(--white); background: var(--navy-900); border-color: var(--navy-900); }

/* Audience / process */
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.audience-card { padding: 34px; }
.audience-card:first-child { color: var(--white); background: var(--navy-900); border-color: var(--navy-900); }
.audience-card p { margin-top: 14px; color: var(--muted); }
.audience-card:first-child p, .audience-card:first-child li { color: rgba(255,255,255,.7); }
.audience-card:first-child .check-list li::before { color: var(--cyan-300); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: step; }
.step { position: relative; padding: 28px; border-top: 3px solid var(--cyan-500); }
.step::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 32px; color: var(--blue-600); font-size: .8rem; font-weight: 900; letter-spacing: .1em; }
.step p { margin-top: 10px; color: var(--muted); }

/* Material and about */
.media-grid { display: grid; grid-template-columns: minmax(360px, .85fr) minmax(0, 1.15fr); gap: 56px; align-items: center; }
.media-frame { position: relative; overflow: hidden; border-radius: 28px; background: var(--navy-900); box-shadow: var(--shadow); }
.media-frame img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.media-caption { padding: 12px 16px; color: var(--muted); background: var(--white); font-size: .76rem; }
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 28px; }
.spec { padding: 17px; border-left: 3px solid var(--cyan-500); background: var(--white); }
.spec strong { display: block; color: var(--navy-900); }
.spec span { color: var(--muted); font-size: .85rem; }
.cert-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.cert-badge { padding: 9px 12px; border-radius: 999px; color: var(--navy-900); background: var(--sky-100); font-weight: 800; font-size: .86rem; }

/* Realisations */
.empty-realisation { padding: 40px; text-align: center; }
.empty-realisation h2 { font-size: clamp(2rem, 4vw, 3.3rem); }
.empty-realisation p { max-width: 690px; margin: 18px auto 0; color: var(--muted); }
.photo-guideline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 32px; text-align: left; }
.photo-guideline div { padding: 20px; border-radius: 15px; background: var(--paper); }
.photo-guideline strong { display: block; margin-bottom: 5px; }
.photo-guideline span { color: var(--muted); font-size: .88rem; }

/* FAQ */
.faq-list { display: grid; gap: 12px; max-width: 900px; margin-inline: auto; }
.faq-list details { background: var(--white); border: 1px solid var(--line); border-radius: 16px; }
.faq-list summary { position: relative; padding: 21px 54px 21px 22px; cursor: pointer; color: var(--navy-900); font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); color: var(--blue-600); font-size: 1.35rem; }
.faq-list details[open] summary::after { content: "−"; }
.faq-answer { padding: 0 22px 22px; color: var(--muted); }

/* Contact */
.contact-section { overflow: hidden; }
.contact-layout { display: grid; grid-template-columns: minmax(0, .8fr) minmax(440px, 1.2fr); gap: 58px; align-items: center; }
.contact-copy h2 { margin-bottom: 20px; }
.contact-copy > p:not(.eyebrow) { color: rgba(255,255,255,.7); }
.contact-details { display: grid; gap: 12px; margin-top: 28px; }
.contact-details a, .contact-details div { display: grid; gap: 1px; width: fit-content; }
.contact-details small { color: rgba(255,255,255,.5); }
.contact-details strong { color: var(--white); }
.contact-form { display: grid; gap: 15px; padding: 30px; color: var(--ink); background: var(--white); border-radius: 24px; box-shadow: 0 30px 80px rgba(0,0,0,.27); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-form label { display: grid; gap: 6px; color: var(--navy-700); font-size: .83rem; font-weight: 780; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; min-height: 48px; padding: 10px 12px; color: var(--ink); background: #f9fbfd; border: 1px solid #c8d8e3; border-radius: 10px; outline: none; }
.contact-form textarea { min-height: 118px; resize: vertical; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(7,143,206,.12); }
.contact-form .button { width: 100%; border: 0; }
.form-note, .form-status { color: var(--muted); font-size: .77rem; text-align: center; }
.form-status { min-height: 1.4em; color: var(--success); font-weight: 750; }

/* Legal */
.legal-shell { max-width: 900px; }
.legal-shell section + section { margin-top: 38px; padding-top: 38px; border-top: 1px solid var(--line); }
.legal-shell h2 { margin-bottom: 16px; font-size: 1.55rem; }
.legal-shell h3 { margin: 24px 0 8px; }
.legal-shell p + p { margin-top: 14px; }
.legal-shell p, .legal-shell li, .legal-shell address { color: var(--muted); font-style: normal; }
.legal-shell ul { padding-left: 20px; }

/* Footer */
.site-footer { color: rgba(255,255,255,.72); background: #020b15; }
.footer-main { display: grid; grid-template-columns: 1.25fr .8fr .8fr 1fr; gap: 36px; padding-block: 58px; }
.footer-brand p { max-width: 300px; margin-top: 15px; color: rgba(255,255,255,.55); font-size: .9rem; }
.footer-title { margin-bottom: 13px; color: var(--white); font-size: .86rem; font-weight: 850; text-transform: uppercase; letter-spacing: .08em; }
.footer-links { display: grid; gap: 8px; font-size: .9rem; }
.footer-links a:hover { color: var(--cyan-300); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; padding-block: 20px; border-top: 1px solid rgba(255,255,255,.1); font-size: .78rem; }
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: 16px; }
.cookie-settings { padding: 0; border: 0; color: inherit; background: transparent; }
.cookie-settings:hover { color: var(--cyan-300); }

/* Cookies */
.cookie-banner { position: fixed; z-index: 3000; left: 18px; right: 18px; bottom: 18px; display: none; max-width: 820px; margin-inline: auto; padding: 22px; color: var(--white); background: rgba(3,16,31,.98); border: 1px solid rgba(255,255,255,.18); border-radius: 18px; box-shadow: 0 26px 80px rgba(0,0,0,.38); }
.cookie-banner.is-visible { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; }
.cookie-banner strong { display: block; margin-bottom: 5px; }
.cookie-banner p { color: rgba(255,255,255,.67); font-size: .87rem; }
.cookie-actions { display: flex; gap: 8px; }
.cookie-actions button { min-height: 42px; padding: 0 14px; border-radius: 10px; font-weight: 800; }
.cookie-accept { color: var(--navy-950); background: var(--cyan-300); border: 0; }
.cookie-refuse { color: var(--white); background: transparent; border: 1px solid rgba(255,255,255,.3); }

/* Utility */
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.center { text-align: center; }
.center .lead { margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 1040px) {
  .menu-button { display: grid; place-items: center; }
  .main-nav { position: fixed; inset: 82px 0 auto; display: none; padding: 18px 20px 28px; background: var(--navy-950); border-bottom: 1px solid rgba(255,255,255,.14); }
  .main-nav.is-open { display: grid; }
  .main-nav a { padding: 13px 12px; }
  .header-phone { margin-left: auto; }
  .hero-main { grid-template-columns: 1fr 1fr; }
  .hero-copy { padding-right: 32px; }
  .footer-main { grid-template-columns: 1.2fr 1fr 1fr; }
  .footer-main > :last-child { grid-column: 1 / -1; }
}

@media (max-width: 820px) {
  .container { width: min(100% - 30px, 1180px); }
  .section { padding-block: 72px; }
  .section-head, .hero-main, .content-grid, .zones-layout, .media-grid, .contact-layout { grid-template-columns: 1fr; }
  .section-head { gap: 18px; }
  .hero-main { min-height: auto; }
  .hero-copy { padding: 72px 0 58px; }
  .hero-visual { min-height: 430px; margin: 0 -15px; }
  .hero-visual::after { background: linear-gradient(180deg, var(--navy-950) 0%, transparent 24%), linear-gradient(0deg, rgba(3,16,31,.6), transparent 40%); }
  .proof-grid { grid-template-columns: 1fr; padding-block: 12px; }
  .proof-item, .proof-item:first-child { padding: 16px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .proof-item:last-child { border-bottom: 0; }
  .services-grid, .audience-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .aside-card { position: static; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-main > :last-child { grid-column: auto; }
}

@media (max-width: 600px) {
  h1 { font-size: clamp(2.65rem, 14vw, 4rem); }
  .brand-copy small { display: none; }
  .brand img { width: 42px; height: 42px; }
  .header-phone { width: 43px; min-height: 43px; padding: 0; font-size: 0; }
  .header-phone::after { content: "☎"; font-size: 1.15rem; }
  .hero-copy .intro, .inner-hero .intro { font-size: 1rem; }
  .hero-actions, .hero-actions .button { width: 100%; }
  .hero-visual { min-height: 350px; }
  .hero-card { right: 18px; bottom: 18px; width: calc(100% - 36px); }
  .services-grid, .feature-grid, .steps, .spec-grid, .photo-guideline, .form-row { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .service-card h3 { margin-top: 34px; }
  .zone-diagram { min-height: 400px; }
  .map-saintes { left: 65%; }
  .media-grid { gap: 32px; }
  .contact-form { padding: 21px; }
  .footer-main { grid-template-columns: 1fr; }
  .cookie-banner.is-visible { grid-template-columns: 1fr; }
  .cookie-actions, .cookie-actions button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}