/* ============================================================
   RDR 2026 — Visites scolaires Marina · Charte graphique
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Lato:wght@400;700;900&family=Montserrat:wght@400;500;600;700&display=swap');

:root{
  --vert1:#00676E; --marine:#191D31; --jaune:#FCDD00; --bleuclair:#4DA8DE; --vert2:#419992;
  --verteau:#5DBFC0; --verteau2:#85D8D5; --verteau3:#C1E1D9; --vert3:#2A646D; --vert4:#20515E;
  --orange:#F5BE41; --orange2:#F19F39; --violet:#7894F7;
  --ink:#191D31; --paper:#FBFCFC; --paper2:#EEF5F3; --card:#FFFFFF;
  --line:#D7E3E1; --line2:#E7EEEC; --muted:#5A6A6C; --muted2:#7E8E8E;
  --serif:'Lato',sans-serif; --body:'Montserrat',sans-serif;
  --radius:10px; --radius-sm:7px;
  --shadow:0 1px 2px rgba(25,29,49,.04),0 8px 24px -12px rgba(25,29,49,.14);
  --shadow-lg:0 2px 6px rgba(25,29,49,.05),0 24px 60px -24px rgba(25,29,49,.24);
  --maxw:1140px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* ---------- HEADER ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(251,252,252,.86);backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:50px;width:auto}
.brand-txt{line-height:1.1}
.brand-txt b{font-family:var(--serif);font-weight:900;font-size:15px;letter-spacing:.04em;color:var(--marine);display:block}
.brand-txt span{font-family:var(--body);font-weight:600;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--vert1)}
.nav{display:flex;align-items:center;gap:8px}
.nav a{font-family:var(--body);font-weight:600;font-size:14.5px;color:var(--marine);padding:9px 16px;border-radius:40px;transition:background .15s,color .15s}
.nav a:hover{background:var(--paper2)}
.nav a.active{background:var(--vert1);color:#fff}
.nav a.cta{background:var(--jaune);color:var(--marine)}
.nav a.cta:hover{background:#ffe84d}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2.5px;background:var(--marine);border-radius:2px;margin:5px 0;transition:.2s}

/* ---------- HERO ---------- */
.hero{position:relative;background:var(--marine);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:
  radial-gradient(120% 120% at 88% -10%, rgba(0,103,110,.55), transparent 55%);pointer-events:none}
.hero-motif{position:absolute;right:-90px;bottom:-120px;width:560px;opacity:.5;transform:scaleX(-1);pointer-events:none}
.hero .wrap{position:relative;z-index:2;padding:74px 28px 84px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:start}
.eyebrow{display:inline-flex;align-items:center;gap:11px;font-family:var(--body);font-weight:600;font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--verteau2)}
.eyebrow::before{content:"";width:26px;height:3px;background:var(--jaune)}
.hero h1{font-family:var(--serif);font-weight:900;font-size:clamp(34px,4.6vw,58px);line-height:1.03;letter-spacing:-.01em;margin:20px 0 0}
.hero h1 em{font-style:normal;color:var(--jaune)}
.hero p.lead{font-size:clamp(16px,1.5vw,18.5px);color:rgba(255,255,255,.82);max-width:540px;margin-top:22px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{display:flex;gap:30px;margin-top:40px;flex-wrap:wrap}
.hero-fact .n{font-family:var(--serif);font-weight:900;font-size:36px;line-height:1;color:#fff}
.hero-fact .l{font-size:13px;color:rgba(255,255,255,.72);margin-top:7px;max-width:150px}

/* compte a rebours grand depart */
.countdown{margin-top:34px}
.cd-head{font-family:var(--body);font-weight:700;font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--verteau2);margin-bottom:13px;display:flex;align-items:center;gap:10px}
.cd-head::before{content:"";width:22px;height:3px;background:var(--jaune);flex-shrink:0}
.cd-grid{display:flex;gap:12px;flex-wrap:wrap}
.cd-seg{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:13px 18px;min-width:78px;text-align:center}
.cd-n{font-family:var(--serif);font-weight:900;font-size:36px;line-height:1;color:#fff;display:block;font-variant-numeric:tabular-nums}
.cd-l{font-family:var(--body);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.58);margin-top:7px;display:block}
@media (max-width:680px){.cd-seg{min-width:64px;padding:11px 12px}.cd-n{font-size:28px}}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--body);font-weight:700;font-size:15px;padding:14px 26px;border-radius:46px;border:0;cursor:pointer;transition:transform .12s,box-shadow .15s,background .15s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--jaune);color:var(--marine)}
.btn-primary:hover{background:#ffe84d;box-shadow:0 10px 24px -10px rgba(252,221,0,.6)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.28)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}
.btn-teal{background:var(--vert1);color:#fff}
.btn-teal:hover{background:#00767e}
.btn-lg{font-size:16.5px;padding:16px 32px}
.btn-block{width:100%;justify-content:center}

/* ---------- FORM CARD (hero right) ---------- */
.form-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow-lg);overflow:hidden;color:var(--ink)}
.form-card-head{background:linear-gradient(120deg,var(--vert1),var(--vert2));color:#fff;padding:20px 26px}
.form-card-head h2{font-family:var(--serif);font-weight:900;font-size:20px}
.form-card-head p{font-size:13px;color:rgba(255,255,255,.85);margin-top:2px}
.form-card-body{padding:24px 26px 26px}

/* ---------- SECTIONS ---------- */
.section{padding:84px 0}
.section.alt{background:var(--paper2)}
.section.marine{background:var(--marine);color:#fff}
.section-head{max-width:680px;margin-bottom:46px}
.section-head .eyebrow{color:var(--vert1)}
.section.marine .section-head .eyebrow{color:var(--verteau2)}
.section-head h2{font-family:var(--serif);font-weight:900;font-size:clamp(28px,3.4vw,40px);line-height:1.08;letter-spacing:-.01em;margin-top:16px}
.section-head p{font-size:16.5px;color:var(--muted);margin-top:14px}
.section.marine .section-head p{color:rgba(255,255,255,.78)}
.center{text-align:center;margin-left:auto;margin-right:auto}

/* ---------- FORM ELEMENTS ---------- */
.field{margin-bottom:16px}
.field.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:0}
.field.row2>.field{margin-bottom:16px}
.grp-label{font-family:var(--body);font-weight:700;font-size:11.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--vert1);margin:22px 0 14px;display:flex;align-items:center;gap:10px}
.grp-label:first-child{margin-top:0}
.grp-label::after{content:"";flex:1;height:1px;background:var(--line)}
label.lab{display:block;font-family:var(--body);font-weight:600;font-size:13px;color:var(--marine);margin-bottom:6px}
label.lab .req{color:var(--orange2)}
.control,select.control,input.control{width:100%;font-family:var(--body);font-size:15px;color:var(--ink);background:#fff;border:1.5px solid var(--line);border-radius:var(--radius-sm);padding:12px 14px;transition:border-color .15s,box-shadow .15s;-webkit-appearance:none;appearance:none}
.control::placeholder{color:#aab6b6}
.control:focus{outline:none;border-color:var(--vert1);box-shadow:0 0 0 3.5px rgba(0,103,110,.13)}
select.control{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2300676E' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 13px center;padding-right:38px}
.hint{font-size:12px;color:var(--muted2);margin-top:5px}

/* radio group (village) */
.radio-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.radio-card{position:relative;border:1.5px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;cursor:pointer;transition:border-color .15s,background .15s}
.radio-card input{position:absolute;opacity:0;pointer-events:none}
.radio-card .rc-t{font-family:var(--serif);font-weight:700;font-size:15px;color:var(--marine)}
.radio-card .rc-s{font-size:12.5px;color:var(--muted);margin-top:2px}
.radio-card:hover{border-color:var(--verteau)}
.radio-card:has(input:checked){border-color:var(--vert1);background:var(--paper2);box-shadow:0 0 0 1px var(--vert1) inset}

/* access code field accent */
.field.code .control{letter-spacing:.25em;font-weight:700;text-align:center;font-size:17px}

/* form note / rgpd */
.form-note{font-size:12px;color:var(--muted2);line-height:1.5;margin-top:16px;padding-top:16px;border-top:1px solid var(--line2)}
.form-note a{color:var(--vert1);font-weight:600}

/* badge places */
.places{display:inline-flex;align-items:center;gap:7px;font-family:var(--body);font-weight:600;font-size:12.5px;padding:5px 12px;border-radius:30px;background:var(--paper2);color:var(--vert1)}
.places .dot{width:7px;height:7px;border-radius:50%;background:var(--vert2)}
.places.low{background:#fff5e8;color:#c47c12}.places.low .dot{background:var(--orange2)}
.places.full{background:#fdeaea;color:#b23b3b}.places.full .dot{background:#d24a4a}

/* ---------- PARCOURS ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.step{position:relative;padding:0 14px;text-align:center}
.step-ico{width:78px;height:78px;border-radius:50%;background:#fff;border:2px solid var(--line);display:flex;align-items:center;justify-content:center;margin:0 auto 18px;position:relative;z-index:2}
.step-ico img{width:42px;height:42px;object-fit:contain}
.step-ico .glyph{font-size:32px}
.step.done .step-ico{background:var(--vert1);border-color:var(--vert1)}
.steps::before{content:"";position:absolute;left:12%;right:12%;top:39px;height:3px;background:repeating-linear-gradient(90deg,var(--verteau) 0 12px,transparent 12px 22px);z-index:1}
.step-n{font-family:var(--body);font-weight:700;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--vert1)}
.step-t{font-family:var(--serif);font-weight:700;font-size:18px;color:var(--marine);margin:6px 0 8px}
.step-d{font-size:13.5px;color:var(--muted);line-height:1.45}
.section.marine .step-ico{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.2)}
.section.marine .step-t{color:#fff}.section.marine .step-d{color:rgba(255,255,255,.72)}
.section.marine .step-n{color:var(--verteau2)}

/* ---------- CARDS / FEATURE GRID ---------- */
.grid{display:grid;gap:22px}
.grid.g2{grid-template-columns:1fr 1fr}
.grid.g3{grid-template-columns:repeat(3,1fr)}
.grid.g4{grid-template-columns:repeat(4,1fr)}
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 26px;box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s}
.tile:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.tile .num{font-family:var(--serif);font-weight:900;font-size:18px;color:#fff;background:var(--vert1);width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.tile h3{font-family:var(--serif);font-weight:700;font-size:19px;color:var(--marine);margin-bottom:8px}
.tile p{font-size:14.5px;color:var(--muted);line-height:1.5}
.tile.accent{border-top:4px solid var(--vert1)}

/* big number callout */
.callouts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.callout{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.callout .big{font-family:var(--serif);font-weight:900;font-size:52px;line-height:.95;color:var(--vert1);letter-spacing:-.02em}
.callout .lbl{font-size:14.5px;color:var(--muted);margin-top:10px}
.section.marine .callout{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12)}
.section.marine .callout .big{color:#fff}.section.marine .callout .lbl{color:rgba(255,255,255,.72)}

/* ---------- ENCADREMENT CALCULATOR ---------- */
.calc{display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.calc-inputs{padding:32px 34px}
.calc-out{background:linear-gradient(150deg,var(--vert1),var(--vert4));color:#fff;padding:32px 34px;display:flex;flex-direction:column;justify-content:center}
.calc-out .res-n{font-family:var(--serif);font-weight:900;font-size:64px;line-height:1}
.calc-out .res-l{font-size:15px;color:rgba(255,255,255,.85);margin-top:6px}
.calc-out .res-ratio{margin-top:18px;font-size:13.5px;color:var(--verteau2);font-weight:600}
.calc-status{margin-top:22px;padding:14px 16px;border-radius:8px;font-size:13.5px;font-weight:600;display:flex;align-items:flex-start;gap:9px;background:rgba(255,255,255,.12)}
.calc-status.ok{background:rgba(133,216,213,.2)}
.calc-status.warn{background:rgba(245,190,65,.22);color:#fff}
.calc-status.bad{background:rgba(210,74,74,.28)}

/* ---------- INFO CALLOUT BANNERS ---------- */
.note{display:flex;gap:16px;align-items:flex-start;background:var(--paper2);border:1px solid var(--line);border-left:4px solid var(--vert1);border-radius:var(--radius-sm);padding:18px 22px;margin:18px 0}
.note.warn{border-left-color:var(--orange2);background:#fff9ef}
.note .ic{font-size:20px;line-height:1.3}
.note p{font-size:14.5px;color:var(--marine)}
.note strong{color:var(--vert1)}

/* ---------- FOOTER ---------- */
.site-footer{background:var(--marine);color:#fff;padding:54px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.14)}
.foot-brand img{height:56px;margin-bottom:16px}
.foot-brand p{font-size:13.5px;color:rgba(255,255,255,.66);max-width:300px}
.foot-col h4{font-family:var(--body);font-weight:700;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--verteau2);margin-bottom:14px}
.foot-col a,.foot-col p{display:block;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:9px}
.foot-col a:hover{color:var(--jaune)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:22px;font-size:12.5px;color:rgba(255,255,255,.5);flex-wrap:wrap;gap:10px}

/* ---------- TOAST / CONFIRM ---------- */
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(120%);background:var(--marine);color:#fff;padding:16px 24px;border-radius:50px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:12px;font-weight:600;font-size:14.5px;z-index:100;transition:transform .35s cubic-bezier(.2,.9,.3,1.2);max-width:90vw}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast .check{width:24px;height:24px;border-radius:50%;background:var(--jaune);color:var(--marine);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}

/* page hero (guide) smaller */
.page-hero{background:var(--marine);color:#fff;position:relative;overflow:hidden}
.page-hero .hero-motif{width:440px;opacity:.4;bottom:-100px;right:-60px}
.page-hero .wrap{position:relative;z-index:2;padding:60px 28px 64px}
.page-hero h1{font-family:var(--serif);font-weight:900;font-size:clamp(30px,4vw,50px);line-height:1.04;margin-top:18px;max-width:760px}
.page-hero h1 em{font-style:normal;color:var(--jaune)}
.page-hero p{font-size:17px;color:rgba(255,255,255,.8);max-width:620px;margin-top:18px}

/* anchor offset under sticky header */
.anchor{scroll-margin-top:90px}

/* ---------- RESPONSIVE ---------- */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .calc{grid-template-columns:1fr}
  .grid.g4{grid-template-columns:1fr 1fr}
  .callouts{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr;gap:34px 18px}
  .steps::before{display:none}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .wrap{padding:0 20px}
  .nav{position:fixed;inset:74px 0 auto 0;flex-direction:column;align-items:stretch;gap:4px;background:var(--paper);padding:16px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-130%);transition:transform .25s;z-index:40}
  .nav.open{transform:translateY(0)}
  .nav a{padding:13px 16px}
  .burger{display:block}
  .grid.g2,.grid.g3,.grid.g4,.callouts,.steps,.field.row2{grid-template-columns:1fr}
  .field.row2>.field{margin-bottom:16px}
  .foot-grid{grid-template-columns:1fr}
  .section{padding:60px 0}
  .hero .wrap{padding:54px 20px 64px}
  .calc-out .res-n{font-size:52px}
}