:root{
  --navy:#06202e;
  --navy-2:#0b3246;
  --teal:#1f9ab0;
  --teal-lite:#5fd0e0;
  --sand:#e8d5b5;
  --ink:#0d1b22;
  --body:#3c5260;
  --bg:#ffffff;
  --bg-alt:#f3f8fa;
  --line:#dde8ed;
  --radius:16px;
  --wrap:1140px;
  --shadow:0 1px 2px rgba(6,32,46,.05),0 12px 32px rgba(6,32,46,.07);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  margin:0;background:var(--bg);color:var(--body);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:Fraunces,Georgia,serif;color:var(--ink);line-height:1.12;margin:0 0 .5em;letter-spacing:-.015em}
h1{font-size:clamp(2.6rem,6.2vw,4.5rem);font-weight:600}
h1 em{font-style:normal;color:var(--teal)}
h2{font-size:clamp(1.9rem,3.6vw,2.7rem);font-weight:600}
h3{font-size:1.12rem;font-weight:600;margin-bottom:.35em}
p{margin:0 0 1rem}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:100;background:#fff;padding:10px 16px;border-radius:8px}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px}

/* NAV */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);background:rgba(255,255,255,.82);border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s}
.nav.scrolled{border-color:var(--line);box-shadow:0 6px 24px rgba(6,32,46,.06)}
.nav-in{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--navy);font-size:1.12rem;font-weight:500;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand strong{font-weight:700}
.brand-mark{width:30px;height:30px;color:var(--teal);flex:none}
.links{display:flex;gap:26px;margin-left:auto;font-size:.95rem}
.links a{color:var(--body)}
.links a:hover{color:var(--teal);text-decoration:none}
.burger{display:none;margin-left:auto;background:none;border:0;padding:10px;cursor:pointer}
.burger span{display:block;width:22px;height:2px;background:var(--navy);border-radius:2px}
.burger span+span{margin-top:5px}

/* BUTTONS */
.btn{display:inline-block;background:var(--teal);color:#fff;padding:14px 26px;border-radius:999px;font-weight:600;font-size:.98rem;box-shadow:0 8px 20px rgba(31,154,176,.28);transition:transform .18s,box-shadow .18s,background .18s}
.btn:hover{background:#1a869a;transform:translateY(-2px);box-shadow:0 12px 26px rgba(31,154,176,.34);text-decoration:none}
.btn-sm{padding:9px 18px;font-size:.9rem;box-shadow:none}
.btn.ghost{background:transparent;color:var(--navy);border:1.5px solid var(--line);box-shadow:none}
.btn.ghost:hover{background:var(--bg-alt);border-color:var(--teal);color:var(--teal)}

/* HERO */
.hero{position:relative;overflow:hidden;background:linear-gradient(170deg,#06202e,#0b3246 55%,#124a5e);color:#dbeaf0;padding:88px 0 0}
.hero-bg{position:absolute;inset:auto 0 0 0;height:44%;pointer-events:none;z-index:1}
.waves{width:100%;height:100%;display:block}
.w{fill:#ffffff}
.w1{opacity:.05;animation:drift 22s ease-in-out infinite alternate}
.w2{opacity:.05;animation:drift 17s ease-in-out infinite alternate-reverse}
.w3{fill:var(--bg);opacity:1}
@keyframes drift{from{transform:translateX(-30px)}to{transform:translateX(30px)}}
@media (prefers-reduced-motion:reduce){.w1,.w2{animation:none}}
.hero-in{position:relative;z-index:2;padding-bottom:180px;max-width:900px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.84rem;letter-spacing:.07em;text-transform:uppercase;color:var(--sand);border:1px solid rgba(232,213,181,.3);padding:7px 16px;border-radius:999px;margin:0 0 26px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--sand)}
.hero h1{color:#fff}
.lead{font-size:clamp(1.05rem,1.7vw,1.22rem);max-width:640px;color:#b9d2dd;margin-bottom:34px}
.cta{display:flex;flex-wrap:wrap;gap:14px}
.cta.center{justify-content:center}
.hero .btn.ghost{color:#fff;border-color:rgba(255,255,255,.3)}
.hero .btn.ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff}
.stats{display:flex;flex-wrap:wrap;gap:46px;margin:56px 0 0;padding-top:30px;border-top:1px solid rgba(255,255,255,.14)}
.stats div{margin:0}
.stats dt{font-family:Fraunces,serif;font-size:2.1rem;color:#fff;line-height:1}
.stats dd{margin:6px 0 0;font-size:.9rem;color:#9fbdca;max-width:170px}

/* SECTIONS */
.section{padding:96px 0}
.section.alt{background:var(--bg-alt)}
.kicker{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);font-weight:600;margin:0 0 12px}
.kicker.light{color:var(--sand)}
.sub{font-size:1.08rem;max-width:620px;margin-bottom:46px}
.sub.light{color:#b9d2dd}
.grid{display:grid;gap:22px}
.cards{grid-template-columns:repeat(3,1fr)}
.three{grid-template-columns:repeat(3,1fr)}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c7dde6}
.ico{font-size:1.6rem;margin-bottom:14px}
.card p{margin:0;font-size:.97rem}

/* SPLIT */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.ticks{list-style:none;padding:0;margin:26px 0 0}
.ticks li{position:relative;padding-left:30px;margin-bottom:12px}
.ticks li::before{content:"";position:absolute;left:0;top:.55em;width:16px;height:9px;border-left:2.5px solid var(--teal);border-bottom:2.5px solid var(--teal);transform:rotate(-45deg)}
.ticks.light li{color:#cfe2ea}
.ticks.light li::before{border-color:var(--teal-lite)}
.two-col{columns:2;column-gap:46px}
.two-col li{break-inside:avoid}
.chart{margin:0;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.chart .axis line{stroke:var(--line);stroke-width:1.5}
.curve{stroke:var(--teal);stroke-width:3;stroke-linecap:round}
.pt{fill:var(--navy)}
.lbl{font-size:11px;fill:var(--body);text-anchor:middle;font-family:Inter,sans-serif}
figcaption{font-size:.86rem;color:var(--body);margin-top:14px;border-top:1px solid var(--line);padding-top:12px}

/* PILLS */
.pill{background:var(--bg-alt);border-radius:var(--radius);padding:28px;border:1px solid var(--line)}
.section.alt .pill{background:var(--bg)}
.num{font-family:Fraunces,serif;font-size:1.5rem;color:var(--teal);display:block;margin-bottom:10px}
.pill p{margin:0;font-size:.97rem}
.note{margin-top:34px;font-size:.9rem;background:#fff6e6;border:1px solid #f0dcb4;color:#6b5428;padding:14px 18px;border-radius:12px;display:inline-block}

/* LEVEE */
.levee{background:linear-gradient(160deg,#06202e,#0b3246);color:#cfe2ea}
.levee h2,.levee h3{color:#fff}
.tiles{margin-bottom:52px}
.tile{border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:26px;background:rgba(255,255,255,.04)}
.t-k{font-family:Fraunces,serif;font-size:1.35rem;color:#fff;margin:0 0 4px;line-height:1.25}
.t-v{margin:0;font-size:.82rem;letter-spacing:.09em;text-transform:uppercase;color:var(--sand)}
.use-h{font-size:1.05rem;letter-spacing:.02em}

/* TEAM */
.member{text-align:left}
.av{width:62px;height:62px;border-radius:50%;background:linear-gradient(145deg,var(--teal),var(--navy-2));margin-bottom:16px;display:flex;align-items:center;justify-content:center;color:#fff;font-family:Fraunces,serif;font-size:1.3rem}
.av::after{content:attr(data-i)}
.member p{font-size:.97rem;margin:0}

/* CTA FINAL */
.cta-final{text-align:center;padding:104px 0}
.cta-final .sub{margin:0 auto 34px}
.contact{margin-top:30px;font-size:.95rem}

/* FOOTER */
.foot{background:var(--navy);color:#8fb0bf;padding:30px 0;font-size:.9rem}
.foot-in{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
.foot p{margin:0}
.foot nav{display:flex;gap:22px}
.foot a{color:#8fb0bf}
.foot a:hover{color:#fff}

/* REVEAL */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* RESPONSIVE */
@media (max-width:960px){
  .cards,.three{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:40px}
}
@media (max-width:720px){
  body{font-size:16px}
  .links{position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px 20px 18px;display:none;box-shadow:0 14px 30px rgba(6,32,46,.09)}
  .links.open{display:flex}
  .links a{padding:12px 0;border-bottom:1px solid var(--line)}
  .burger{display:block}
  .nav-in .btn-sm{display:none}
  .cards,.three{grid-template-columns:1fr}
  .two-col{columns:1}
  .section{padding:68px 0}
  .hero{padding-top:56px}
  .hero-in{padding-bottom:130px}
  .stats{gap:28px}
  .stats dt{font-size:1.75rem}
  .foot-in{flex-direction:column;align-items:flex-start}
}

/* ============ VISUALISATION COURANTS ============ */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.viz-section{background:var(--navy);color:#cfe2ea;padding:92px 0 72px}
.viz-section h2{color:#fff}
.viz-section .sub{color:#a8c6d3;margin-bottom:38px}
.viz-panel{position:relative;max-width:1340px;margin:0 auto;padding:0 20px}
.viz-map{position:relative}
#viz-canvas{
  display:block;width:100%;height:clamp(230px,44vw,700px);
  background:var(--navy);border-radius:20px;
  border:1px solid rgba(255,255,255,.1);
  box-shadow:0 30px 70px rgba(0,0,0,.4);
  opacity:0;transition:opacity .7s ease;
  cursor:grab;touch-action:pan-y;
}
#viz-canvas.dragging{cursor:grabbing}
#viz-canvas:focus-visible{outline:2px solid var(--teal-lite);outline-offset:3px}
#golfe-viz.ready #viz-canvas{opacity:1}

/* zoom */
.viz-zoom{
  position:absolute;right:24px;top:108px;display:flex;flex-direction:column;
  background:rgba(6,32,46,.6);backdrop-filter:blur(6px);border-radius:12px;
  border:1px solid rgba(255,255,255,.08);overflow:hidden;
  opacity:0;transition:opacity .7s ease;
}
#golfe-viz.ready .viz-zoom{opacity:1}
.viz-zoom button{
  width:36px;height:34px;border:0;background:transparent;color:#cfe2ea;cursor:pointer;
  font:inherit;font-size:1.05rem;line-height:1;transition:background .18s,color .18s;
}
.viz-zoom button+button{border-top:1px solid rgba(255,255,255,.08)}
.viz-zoom button:hover{background:rgba(255,255,255,.1);color:#fff}
.viz-zoom button:disabled{color:#4f6b78;cursor:default;background:transparent}
.viz-hint{
  position:absolute;left:50%;bottom:84px;transform:translateX(-50%);margin:0;
  background:rgba(6,32,46,.78);color:#cfe2ea;font-size:.78rem;letter-spacing:.02em;
  padding:8px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.1);
  opacity:0;transition:opacity .3s ease;pointer-events:none;white-space:nowrap;
}
.viz-hint.on{opacity:1}

/* suivi d'un bateau et vue du bord */
.viz-follow{
  position:absolute;left:24px;top:136px;display:flex;align-items:center;gap:8px;
  background:rgba(6,32,46,.7);backdrop-filter:blur(6px);padding:7px 8px 7px 12px;
  border-radius:12px;border:1px solid rgba(240,217,176,.35);font-size:.76rem;color:#f6ead3;
}
.viz-follow[hidden]{display:none}
.viz-follow button{
  border:1px solid rgba(255,255,255,.18);background:transparent;color:#cfe2ea;cursor:pointer;
  border-radius:8px;padding:4px 9px;font:inherit;font-size:.72rem;transition:background .18s,color .18s;
}
.viz-follow button:hover{background:rgba(255,255,255,.1);color:#fff}
.viz-follow button[aria-pressed=true]{background:rgba(78,224,138,.16);border-color:rgba(78,224,138,.5);color:#cdf7df}
.viz-bord{
  position:absolute;right:70px;top:108px;width:360px;height:200px;display:block;
  border-radius:12px;border:1px solid rgba(255,255,255,.14);box-shadow:0 14px 34px rgba(0,0,0,.45);
  background:#06202e;
}
.viz-bord[hidden]{display:none}
@media (max-width:860px){
  .viz-follow{left:12px;top:auto;bottom:12px;font-size:.68rem;gap:6px;padding:5px 6px 5px 9px}
  .viz-bord{right:auto;left:12px;top:12px;width:56%;height:38%}
}
.viz-status{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  margin:0;color:#7fa3b4;font-size:.95rem;letter-spacing:.04em;pointer-events:none;
}

/* légende */
.viz-legend{
  position:absolute;top:24px;right:44px;display:grid;
  grid-template-columns:auto 120px;grid-template-areas:"t bar" "s0 s1";
  gap:4px 12px;align-items:center;font-size:.7rem;letter-spacing:.1em;
  text-transform:uppercase;color:#8fb0bf;background:rgba(6,32,46,.55);
  backdrop-filter:blur(6px);padding:10px 14px;border-radius:12px;
  border:1px solid rgba(255,255,255,.08);
}
.lg-t{grid-area:t}
.lg-bar{grid-area:bar;height:5px;border-radius:3px;background:linear-gradient(90deg,#4fa0b9,#5fd0e0,#8ce8f0,#cdf0eb,#f0d9b0)}
.lg-s:first-of-type{grid-area:s0}
.lg-s:last-of-type{grid-area:s1;text-align:right}

/* horodatage sur la carte */
.viz-stamp{
  position:absolute;top:24px;left:44px;display:flex;align-items:center;gap:9px;
  background:rgba(6,32,46,.55);backdrop-filter:blur(6px);padding:9px 14px;
  border-radius:12px;border:1px solid rgba(255,255,255,.08);
  font-size:.78rem;color:#cfe2ea;letter-spacing:.02em;
  opacity:0;transition:opacity .7s ease;pointer-events:none;
}
#golfe-viz.ready .viz-stamp{opacity:1}
.stamp-dot{width:7px;height:7px;border-radius:50%;background:#7fa3b4;flex:none}
#golfe-viz.is-live .stamp-dot{background:#4ee08a;animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
@media (prefers-reduced-motion:reduce){
  #golfe-viz.is-live .stamp-dot{animation:none}
}

/* contrôles */
.viz-controls{
  position:relative;margin:-64px auto 0;max-width:880px;
  display:grid;gap:14px;
  background:rgba(8,38,54,.82);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.12);border-radius:16px;
  padding:16px 20px 14px;box-shadow:0 18px 40px rgba(0,0,0,.34);
}
.vc-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.play{
  width:38px;height:38px;flex:none;border-radius:50%;border:0;cursor:pointer;
  background:var(--teal);color:#fff;font-size:.78rem;line-height:1;
  display:flex;align-items:center;justify-content:center;transition:background .18s,transform .18s;
}
.play:hover{background:#2bb3cb;transform:scale(1.06)}
.chip{
  display:inline-flex;align-items:center;gap:7px;cursor:pointer;
  border:1px solid rgba(255,255,255,.18);background:transparent;color:#a8c6d3;
  border-radius:999px;padding:7px 15px;font:inherit;font-size:.8rem;
  transition:background .18s,color .18s,border-color .18s;
}
.chip:hover{border-color:rgba(255,255,255,.4);color:#fff}
.chip.on{background:rgba(78,224,138,.14);border-color:rgba(78,224,138,.5);color:#cdf7df}
.chip-dot{width:7px;height:7px;border-radius:50%;background:currentColor;flex:none}
.vc-when{display:flex;align-items:center;gap:8px;margin-left:auto}
.step{
  cursor:pointer;border:1px solid rgba(255,255,255,.18);background:transparent;
  color:#a8c6d3;border-radius:9px;padding:7px 11px;font:inherit;font-size:.78rem;
  transition:background .18s,color .18s;
}
.step:hover{background:rgba(255,255,255,.08);color:#fff}
.vc-when input[type=datetime-local]{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);
  color:#fff;border-radius:9px;padding:7px 10px;font:inherit;font-size:.8rem;
  color-scheme:dark;cursor:pointer;
}
.vc-when input[type=datetime-local]:focus-visible{outline:2px solid var(--teal-lite);outline-offset:1px}

/* courbe du jour */
.tide-chart{display:block;width:100%;height:auto;touch-action:none;cursor:ew-resize}

/* lecture */
.vc-read{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.rd{display:flex;flex-direction:column;gap:1px;min-width:0}
.rd-k{font-size:.64rem;letter-spacing:.11em;text-transform:uppercase;color:#7fa3b4}
.rd strong{font-family:Fraunces,serif;font-size:1.18rem;color:#fff;font-weight:600;line-height:1.2}
.rd-s{font-size:.73rem;color:#8fb0bf;line-height:1.35}

.viz-note{max-width:760px;margin:30px auto 0;text-align:center;font-size:.8rem;color:#7396a7;line-height:1.6}

@media (max-width:860px){
  /* Sur petit écran la carte est courte : on cesse de l'encombrer. Légende et
     horodatage passent au-dessus, le panneau de contrôle en dessous. */
  .viz-panel{display:flex;flex-direction:column;gap:10px}
  .viz-stamp,.viz-legend{position:static;order:1;opacity:1}
  .viz-stamp{align-self:flex-start}
  .viz-legend{align-self:stretch;grid-template-columns:auto 1fr;padding:8px 12px;font-size:.62rem}
  .viz-map{order:2}
  #viz-canvas{border-radius:16px}
  .viz-zoom{right:12px;top:12px}
  .viz-hint{bottom:14px;font-size:.7rem}
  .viz-status{order:2}
  .viz-controls{order:3;margin:0;max-width:none;padding:14px 16px}
  .vc-when{margin-left:0;width:100%}
  .vc-when input[type=datetime-local]{flex:1;min-width:0}
  .vc-read{grid-template-columns:repeat(2,1fr);gap:12px 10px}
  .viz-section{padding:68px 0 56px}
}
.viz-status[hidden]{display:none}

/* ============ PLANIFICATEUR PADDLE ============ */
.pd-intro{background:linear-gradient(170deg,#06202e,#0b3246 55%,#124a5e);color:#dbeaf0;padding:72px 0 48px}
.pd-intro h1{color:#fff;font-size:clamp(2rem,4.6vw,3.2rem)}
.pd-intro .lead{color:#c6dbe4;max-width:760px;font-size:1.08rem}
.pd-panel{background:var(--bg);padding:28px 0 0}
.pd-card{
  max-width:1300px;margin:0 auto;padding:22px 24px;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);display:grid;grid-template-columns:1.1fr 1fr 1.3fr;gap:22px 28px;align-items:start;
}
.pd-card h3{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);margin:0 0 10px}
.pd-step{display:flex;gap:12px;align-items:flex-start}
.pd-num{flex:none;width:28px;height:28px;border-radius:50%;background:var(--navy);color:#fff;font-weight:600;font-size:.85rem;display:flex;align-items:center;justify-content:center}
.pd-step p{margin:0 0 6px;font-size:.95rem}
.pd-val{font-weight:600;color:var(--ink)}
.pd-field{display:flex;align-items:center;gap:12px;margin:8px 0;font-size:.92rem}
.pd-field label{min-width:140px;color:var(--body)}
.pd-field input[type=range]{flex:1;accent-color:var(--teal)}
.pd-field output{min-width:64px;font-weight:600;color:var(--ink);text-align:right}
.pd-field input[type=checkbox]{accent-color:var(--teal);width:18px;height:18px}
.pd-small{font-size:.78rem;color:#6d8591;margin:4px 0 0}
.pd-status{font-size:.9rem;color:var(--teal);font-weight:600;margin:10px 0 0}
.pd-results{min-height:60px}
.pd-line{font-size:.95rem;margin:0 0 8px}
.pd-warn{color:#b4552f}
.pd-bands{display:flex;flex-wrap:wrap;gap:8px 14px;margin:6px 0 10px;font-size:.8rem;color:var(--body)}
.pd-band i{display:inline-block;width:14px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.pd-chart{display:flex;align-items:flex-end;gap:3px;height:84px;margin:10px 0 2px;border-bottom:1px solid var(--line);padding-bottom:16px;position:relative}
.pd-bar{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;position:relative}
.pd-bar i{display:block;width:100%;background:#9fc9d6;border-radius:3px 3px 0 0}
.pd-bar.best i{background:var(--teal)}
.pd-bar.none i{background:#e4b9ad;height:4px}
.pd-bar b{position:absolute;bottom:-16px;font-size:.66rem;font-weight:500;color:#6d8591}
.pd-ghost{border:1px solid var(--line);background:transparent;color:var(--body);border-radius:999px;padding:6px 14px;font:inherit;font-size:.82rem;cursor:pointer}
.pd-ghost:hover{border-color:var(--teal);color:var(--teal)}
.pd-method{padding:64px 0 80px}
.pd-method h2{font-size:1.7rem}
.pd-method p{max-width:760px}
#paddle.ready #viz-canvas{cursor:crosshair}
#paddle.ready #viz-canvas.dragging{cursor:grabbing}
@media (max-width:980px){.pd-card{grid-template-columns:1fr}}