/* ===============================================================
   Studio Creative — Pages SEO local (Côte d'Opale)
   Feuille partagée par developpeur-web-{ville}.html
   =============================================================== */
:root{--bg:#080b10;--bg2:#0c1018;--bg3:#111820;--cyan:#00d4ff;--blue:#3a7bd5;--accent:#00d4ff;--accent-dim:rgba(0,212,255,.10);--accent-glow:rgba(0,212,255,.45);--white:#fff;--gray:#8899aa;--gray2:#3a4a5a;--nav-h:72px}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--white);font-family:'Outfit',sans-serif;line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none}

#nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:1000;transition:background .4s,border-color .4s;border-bottom:1px solid transparent}
#nav.scrolled{background:rgba(8,11,16,.88);backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);border-color:rgba(0,212,255,.10)}
.nav-inner{display:flex;align-items:center;height:100%;max-width:1200px;width:92%;margin:0 auto}
.nav-logo{flex-shrink:0;line-height:0}.nav-logo img{height:40px;display:block}
.nav-back{display:inline-flex;align-items:center;gap:8px;margin-left:auto;font-size:13px;font-weight:500;color:var(--gray);padding:8px 20px;border-radius:50px;border:1px solid rgba(136,153,170,.2);background:rgba(136,153,170,.04);transition:color .25s,border-color .25s,background .25s}
.nav-back:hover{color:var(--white);border-color:rgba(0,212,255,.4);background:rgba(0,212,255,.08)}
.nav-back svg{transition:transform .25s;flex-shrink:0}.nav-back:hover svg{transform:translateX(-3px)}

.container{max-width:1200px;width:92%;margin:0 auto}
section{padding:100px 0}
.section-tag{display:inline-flex;align-items:center;gap:10px;font-size:11px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.section-tag::before{content:'';display:block;width:24px;height:1px;background:var(--accent)}
.section-title{font-size:clamp(30px,4vw,46px);font-weight:700;letter-spacing:-1px;margin-bottom:16px;line-height:1.1}
.section-title span{background:linear-gradient(135deg,var(--cyan),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-sub{font-size:17px;color:var(--gray);max-width:660px;line-height:1.7}
.reveal{opacity:0;transform:translateY(36px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* Fil d'Ariane */
.breadcrumb{padding:calc(var(--nav-h) + 22px) 0 0;font-size:13px;color:var(--gray2)}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb a{color:var(--gray);transition:color .25s}.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb li+li::before{content:'/';margin-right:8px;color:var(--gray2)}
.breadcrumb [aria-current]{color:var(--gray2)}

.hero{min-height:64vh;display:flex;align-items:center;padding-top:12px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 60% at 50% 40%,rgba(0,212,255,.10) 0%,transparent 70%);pointer-events:none}
.hero-content{position:relative;z-index:1;max-width:820px;padding:60px 0 60px}
.hero-badge{display:inline-flex;align-items:center;gap:10px;background:rgba(0,212,255,.1);border:1px solid rgba(0,212,255,.22);padding:6px 18px;border-radius:50px;font-size:12px;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--accent);margin-bottom:24px}
.hero h1{font-size:clamp(34px,4.6vw,56px);font-weight:900;line-height:1.06;letter-spacing:-2px;margin-bottom:24px}
.hero h1 span{background:linear-gradient(135deg,var(--white) 0%,var(--cyan) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:18px;font-weight:300;color:var(--gray);line-height:1.75;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;margin-top:48px}
.intro-text{font-size:17px;color:var(--gray);line-height:1.8}
.intro-text p{margin-bottom:20px}.intro-text strong{color:var(--white);font-weight:600}

.benefits-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;margin-top:52px}
.benefit-card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);border-radius:14px;padding:30px;transition:border-color .3s,transform .3s}
.benefit-card:hover{border-color:rgba(0,212,255,.25);transform:translateY(-4px)}
.benefit-ico{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px;background:rgba(0,212,255,.12)}
.benefit-card h3{font-size:17px;font-weight:600;margin-bottom:10px}
.benefit-card p{font-size:14px;color:var(--gray);line-height:1.65}

.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:28px;margin-top:52px;counter-reset:step}
.step-card{background:rgba(255,255,255,.02);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:32px;position:relative;counter-increment:step}
.step-card::before{content:counter(step);position:absolute;top:20px;right:24px;font-size:48px;font-weight:900;color:rgba(0,212,255,.1);line-height:1}
.step-card h3{font-size:16px;font-weight:600;margin-bottom:10px;color:var(--accent)}
.step-card p{font-size:14px;color:var(--gray);line-height:1.65}

.deliverables-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:32px}
.deliverable{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--gray);line-height:1.6}
.deliverable svg{flex-shrink:0;margin-top:3px}

/* Bloc d'infos locales */
.local-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:22px;margin-top:48px}
.local-fact{background:rgba(0,212,255,.04);border:1px solid rgba(0,212,255,.12);border-radius:14px;padding:28px}
.local-fact .num{font-size:clamp(30px,4vw,42px);font-weight:900;letter-spacing:-1.5px;line-height:1;background:linear-gradient(135deg,var(--cyan),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:10px}
.local-fact p{font-size:14px;color:var(--gray);line-height:1.6}

.case-study{background:rgba(0,212,255,.04);border:1px solid rgba(0,212,255,.12);border-radius:18px;padding:40px;margin-top:48px}
.case-study h3{font-size:20px;font-weight:700;margin-bottom:16px}
.case-study p{font-size:15px;color:var(--gray);line-height:1.7;margin-bottom:12px}
.case-study .case-link{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:14px;font-weight:600;margin-top:8px;transition:gap .3s}
.case-study .case-link:hover{gap:10px}

.cta{text-align:center;padding:100px 0}
.cta-title{font-size:clamp(28px,4vw,46px);font-weight:700;letter-spacing:-1px;margin-bottom:16px;line-height:1.1}
.cta-sub{font-size:17px;color:var(--gray);margin-bottom:40px}
.btn-p{padding:15px 38px;border-radius:50px;background:linear-gradient(135deg,var(--cyan),var(--blue));font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px;transition:opacity .3s,transform .3s;color:#04121a}
.btn-p:hover{opacity:.85;transform:translateY(-2px)}
.btn-s{padding:15px 34px;border-radius:50px;border:1px solid rgba(136,153,170,.25);background:rgba(136,153,170,.04);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px;color:var(--white);transition:border-color .3s,background .3s,transform .3s}
.btn-s:hover{border-color:rgba(0,212,255,.45);background:rgba(0,212,255,.08);transform:translateY(-2px)}

.faq-list{margin-top:48px;max-width:800px}
.faq-item{border-bottom:1px solid rgba(255,255,255,.06)}
.faq-q{width:100%;background:none;border:none;color:var(--white);font-family:inherit;font-size:16px;font-weight:600;text-align:left;padding:22px 0;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-q::after{content:'+';font-size:22px;color:var(--accent);transition:transform .3s;flex-shrink:0}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease}
.faq-item.open .faq-a{max-height:420px;padding-bottom:22px}
.faq-a p{font-size:15px;color:var(--gray);line-height:1.7}

.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;margin-top:40px}
.related-card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);border-radius:14px;padding:28px;transition:border-color .3s,transform .3s;display:block}
.related-card:hover{border-color:rgba(0,212,255,.25);transform:translateY(-4px)}
.related-card h3{font-size:16px;font-weight:600;margin-bottom:8px}
.related-card p{font-size:13px;color:var(--gray);line-height:1.6}

/* Maillage villes */
.cities-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-top:40px}
.city-card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);border-radius:14px;padding:26px;transition:border-color .3s,transform .3s;display:block}
.city-card:hover{border-color:rgba(0,212,255,.3);transform:translateY(-4px)}
.city-card h3{font-size:16px;font-weight:700;margin-bottom:6px}
.city-card .dist{font-size:12px;color:var(--cyan);font-weight:600;letter-spacing:.5px;margin-bottom:10px;display:block}
.city-card p{font-size:13px;color:var(--gray);line-height:1.6}
.city-card[aria-current]{border-color:rgba(0,212,255,.35);background:rgba(0,212,255,.06)}

footer{padding:60px 0;background:var(--bg2);border-top:1px solid rgba(255,255,255,.05)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:24px}
.footer-logo img{height:40px;opacity:.85;transition:opacity .3s}.footer-logo img:hover{opacity:1}
.footer-links{display:flex;gap:28px;flex-wrap:wrap}
.footer-links a{font-size:13px;color:var(--gray);transition:color .3s}.footer-links a:hover{color:var(--white)}
.footer-copy{font-size:12px;color:var(--gray2);letter-spacing:.5px}.footer-copy span{color:var(--accent)}
.footer-legal{font-size:11px;margin-top:8px}
.footer-legal a{color:var(--gray2);transition:color .2s}.footer-legal a:hover{color:var(--accent)}
.footer-zones{width:100%;border-top:1px solid rgba(255,255,255,.05);padding-top:22px;font-size:12px;color:var(--gray2);line-height:1.9;text-align:center}
.footer-zones strong{color:var(--gray);font-weight:600}
.footer-zones a{color:var(--gray);transition:color .25s}.footer-zones a:hover{color:var(--cyan)}

@media(max-width:960px){.intro-grid{grid-template-columns:1fr;gap:40px}.deliverables-list{grid-template-columns:1fr}}
@media(max-width:768px){.footer-inner{flex-direction:column;text-align:center}.benefits-grid,.steps-grid{grid-template-columns:1fr}}