/* Bahamas Reef Works - shared stylesheet. Layout concept: one dive, surface to 1,000 m; dark-first, single theme. */
:root{
  --abyss:#050d14; --deep:#0a1a28; --ink:#10283a; --line:#1e3a50;
  --foam:#eef6f8; --mist:#9db4c2; --aqua:#2ee6c5; --aqua-deep:#0fb79b; --buoy:#ff7a1a; --sand:#f3dfb6;
  --display:'Syne',ui-sans-serif,system-ui,sans-serif;
  --body:'Hanken Grotesk',ui-sans-serif,system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--abyss);color:var(--foam);font-family:var(--body);font-size:17px;line-height:1.55;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--abyss)}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--display);text-wrap:balance;margin:0;line-height:1.05;letter-spacing:-.02em}
p{margin:0}
.wrap{width:min(1240px,100%);margin-inline:auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.grain{position:fixed;inset:0;pointer-events:none;z-index:9;opacity:.07;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--aqua)}
.eyebrow.b{color:var(--buoy)}
.chip{display:inline-flex;align-items:center;gap:.4em;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;padding:.35em .7em;border:1px solid var(--line);border-radius:999px;color:var(--mist);background:rgba(5,13,20,.55);backdrop-filter:blur(6px)}
.concept{position:absolute;left:14px;bottom:14px;z-index:2;pointer-events:none}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:8;background:linear-gradient(to bottom,rgba(5,13,20,.94),rgba(5,13,20,.8));backdrop-filter:blur(10px);border-bottom:1px solid rgba(30,58,80,.6)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:64px;flex-wrap:wrap;padding-block:.4rem}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;font-family:var(--display);font-weight:800;letter-spacing:.02em;font-size:1rem;text-transform:uppercase}
.brand svg{width:30px;height:30px;flex:none}
.links{display:flex;gap:1.2rem;font-size:.92rem;font-weight:500;flex-wrap:wrap}
.links a{text-decoration:none;color:var(--mist);padding:.3em 0;border-bottom:2px solid transparent}
.links a:hover,.links a:focus-visible{color:var(--foam)}
.links a.on{color:var(--foam);border-bottom-color:var(--aqua)}
.links a.buoy{color:var(--buoy)}
.links a.buoy.on{border-bottom-color:var(--buoy)}
.btn{display:inline-flex;align-items:center;gap:.5em;padding:.8em 1.3em;border-radius:999px;font-weight:600;text-decoration:none;font-size:.95rem;border:1px solid transparent;transition:transform .15s ease,background .15s ease;cursor:pointer;font-family:inherit}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--aqua);color:#04231d}
.btn.ghost{border-color:rgba(238,246,248,.35);color:var(--foam);background:transparent}
.btn.orange{background:var(--buoy);color:#2a1200}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--aqua);outline-offset:3px}
@media (max-width:900px){.links{gap:.9rem;font-size:.86rem}}

/* hero */
.hero{position:relative;min-height:min(88vh,860px);display:grid;align-items:end;isolation:isolate;overflow:hidden}
.hero.short{min-height:min(62vh,620px)}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transform:scale(1.04)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(to top,rgba(5,13,20,.97) 0%,rgba(5,13,20,.55) 45%,rgba(5,13,20,.15) 100%)}
.hero .wrap{padding-block:3.5rem 3rem;width:min(1320px,100%)}
.hero h1{font-size:clamp(3.2rem,10vw,9.5rem);font-weight:800;line-height:.9;letter-spacing:-.04em}
.hero.short h1{font-size:clamp(2.4rem,6vw,5.2rem);line-height:.98;letter-spacing:-.03em;max-width:16ch}
.hero h1 span{display:block}
.hero h1 .w1{color:var(--aqua)}.hero h1 .w2{color:var(--foam)}.hero h1 .w3{color:var(--buoy)}
.hero .lead{max-width:40rem;font-size:clamp(1.05rem,1.6vw,1.25rem);color:#d8e6ec;margin-top:1.4rem;font-weight:300}
.hero .lead b{font-weight:600;color:var(--foam)}
.hero .cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.hero .meta{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mist);margin-bottom:1.2rem}
.hero .meta i{font-style:normal;color:var(--aqua)}
.hero.b .meta i,.hero.b .eyebrow{color:var(--buoy)}

/* marquee */
.marquee{overflow:hidden;border-block:1px solid var(--line);background:var(--deep);padding-block:.75rem;font-family:var(--display);font-weight:700;letter-spacing:.06em;text-transform:uppercase;font-size:.95rem;color:var(--mist)}
.marquee .track{display:flex;gap:3rem;width:max-content;animation:slide 40s linear infinite;white-space:nowrap}
.marquee .track span b{color:var(--aqua);font-weight:700}
@keyframes slide{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.marquee .track{animation:none}}

/* sections */
section{padding-block:clamp(3.5rem,8vw,7rem)}
.band{background:var(--deep)}
.head{display:grid;gap:1rem;max-width:52rem;margin-bottom:clamp(1.8rem,4vw,3rem)}
.head h2{font-size:clamp(2rem,4.6vw,3.8rem);font-weight:800}
.head p{color:var(--mist);font-size:1.1rem;max-width:42rem}
.head p b,.prose b{color:var(--foam);font-weight:600}
.prose{max-width:68ch;display:grid;gap:1rem;color:#cfdce3;font-size:1.05rem}
.prose h3{font-size:1.45rem;margin-top:.6rem;color:var(--foam)}
.prose ul,.prose ol{margin:0;padding-left:1.2em;display:grid;gap:.4rem}
.prose li::marker{color:var(--aqua)}
.b .prose li::marker,.b .step::before,.b .eyebrow{color:var(--buoy)}
.two{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.5rem,4vw,4rem);align-items:start}
.two.rev>.fig{order:2}
@media (max-width:900px){.two{grid-template-columns:1fr}.two.rev>.fig{order:0}}

/* figures + lightbox */
.fig{margin:0;position:relative;border-radius:22px;overflow:hidden;max-width:100%;cursor:zoom-in;background:var(--ink)}
.fig img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .6s ease}
.fig.wide img{aspect-ratio:16/9}
.fig.tall img{aspect-ratio:4/5}
.fig:hover img{transform:scale(1.03)}
.fig figcaption{position:absolute;inset:auto 0 0 0;padding:2.4rem 1rem .9rem;background:linear-gradient(to top,rgba(5,13,20,.9),rgba(5,13,20,0));font-size:.9rem;color:#d8e6ec;pointer-events:none}
.fig .zoom{position:absolute;top:12px;right:12px;width:34px;height:34px;border-radius:50%;background:rgba(5,13,20,.6);border:1px solid var(--line);display:grid;place-items:center;color:var(--foam);font-family:var(--mono);font-size:1rem;pointer-events:none}
.lb{position:fixed;inset:0;z-index:50;background:rgba(5,13,20,.96);display:none;align-items:center;justify-content:center;padding:max(16px,env(safe-area-inset-left,0px))}
.lb.open{display:flex}
.lb img{max-width:min(96vw,1400px);max-height:78vh;object-fit:contain;border-radius:12px;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.lb .cap{position:absolute;left:0;right:0;bottom:max(18px,env(safe-area-inset-bottom,0px));text-align:center;padding-inline:4rem;color:#d8e6ec;font-size:.95rem}
.lb .cap small{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mist);margin-top:.3rem}
.lb button{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:rgba(16,40,58,.8);color:var(--foam);font-size:1.4rem;cursor:pointer;font-family:var(--mono)}
.lb .prev{left:max(12px,env(safe-area-inset-left,0px))}.lb .next{right:max(12px,env(safe-area-inset-right,0px))}
.lb .close{top:max(14px,env(safe-area-inset-top,0px));right:max(14px,env(safe-area-inset-right,0px));transform:none}

/* stats, cards, steps */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.stat{background:var(--abyss);padding:1.5rem 1.3rem}
.stat .n{font-family:var(--display);font-weight:800;font-size:clamp(2.2rem,4.2vw,3.4rem);letter-spacing:-.03em;color:var(--aqua);font-variant-numeric:tabular-nums;line-height:1}
.stat .n small{font-size:.5em;letter-spacing:0;color:var(--mist);margin-left:.15em}
.stat .l{margin-top:.5rem;color:var(--mist);font-size:.95rem}
.b .stat .n{color:var(--buoy)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}
.card{border:1px solid var(--line);border-radius:18px;padding:1.3rem;background:var(--ink);display:grid;gap:.5rem;align-content:start}
.card h3{font-size:1.15rem;font-weight:700}
.card p{color:var(--mist);font-size:.95rem}
.card .k{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--aqua)}
.b .card .k{color:var(--buoy)}
.pcards{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:1.2rem}
.pc{display:grid;grid-template-rows:auto 1fr;border:1px solid var(--line);border-radius:22px;overflow:hidden;background:var(--ink);text-decoration:none;transition:border-color .2s}
.pc:hover{border-color:var(--aqua)}.pc.b:hover{border-color:var(--buoy)}
.pc .ph{position:relative;aspect-ratio:16/10;max-width:100%}
.pc .ph img{width:100%;height:100%;object-fit:cover}
.pc .bd{padding:1.3rem 1.3rem 1.5rem;display:grid;gap:.55rem;align-content:start}
.pc h3{font-size:1.6rem;font-weight:800}
.pc p{color:var(--mist)}
.pc .go{margin-top:.5rem;font-family:var(--mono);font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--aqua)}
.pc.b .go{color:var(--buoy)}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem;counter-reset:s}
.step{border:1px solid var(--line);border-radius:18px;padding:1.3rem 1.3rem 1.4rem;background:var(--ink);display:grid;gap:.5rem;align-content:start}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--mono);font-size:.8rem;color:var(--aqua);letter-spacing:.1em}
.step h3{font-size:1.15rem;font-weight:700}
.step p{color:var(--mist);font-size:.95rem}
.timeline{display:grid;gap:0;border-left:2px solid var(--line);margin-left:.6rem}
.tl-i{position:relative;padding:0 0 1.4rem 1.6rem}
.tl-i::before{content:"";position:absolute;left:-7px;top:.35rem;width:12px;height:12px;border-radius:50%;background:var(--aqua);box-shadow:0 0 0 4px var(--abyss)}
.b .tl-i::before{background:var(--buoy)}
.tl-i .t{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--aqua)}
.b .tl-i .t{color:var(--buoy)}
.tl-i h3{font-size:1.1rem;margin:.2rem 0 .3rem}
.tl-i p{color:var(--mist);font-size:.95rem;max-width:60ch}

/* tables */
.tablewrap{overflow-x:auto;max-width:100%;border:1px solid var(--line);border-radius:16px}
table.spec{width:100%;border-collapse:collapse;font-size:.92rem;min-width:520px}
table.spec th,table.spec td{text-align:left;padding:.75rem .9rem;border-bottom:1px solid var(--line);vertical-align:top}
table.spec th{font-family:var(--mono);font-weight:500;letter-spacing:.08em;text-transform:uppercase;font-size:.68rem;color:var(--mist);background:var(--ink)}
table.spec tr:last-child td{border-bottom:0}
table.spec td.o{color:var(--buoy);font-family:var(--mono)}
table.spec td.m{font-family:var(--mono);font-size:.85rem}
.note{font-family:var(--mono);font-size:.74rem;color:var(--mist);margin-top:.8rem;line-height:1.6}

/* faq */
.faq{display:grid;gap:.6rem;max-width:68ch}
.faq details{border:1px solid var(--line);border-radius:14px;background:var(--ink);padding:0 1.1rem}
.faq summary{cursor:pointer;padding:1rem 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:1rem}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--aqua)}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 1.1rem;color:var(--mist)}

/* diagrams */
.diag{border:1px solid var(--line);border-radius:22px;background:linear-gradient(to bottom,#0b2a3f 0%,#07131c 55%,#040a10 100%);padding:1rem;max-width:100%}
.diag svg{width:100%;height:auto;display:block}
.diag.light{background:#0d1c27}

/* map + legend */
.legend{display:flex;flex-wrap:wrap;gap:1rem 1.6rem;margin-top:1rem;font-family:var(--mono);font-size:.76rem;color:var(--mist)}
.legend i{display:inline-block;width:12px;height:12px;border-radius:50%;margin-right:.5em;vertical-align:-1px}

/* gallery */
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}
.gal .fig img{aspect-ratio:16/10}

/* who */
.who{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.cap{border-top:2px solid var(--aqua);padding-top:1rem;display:grid;gap:.4rem;align-content:start}
.cap h3{font-size:1.15rem;font-weight:700}
.cap p{color:var(--mist);font-size:.95rem}
video{width:100%;border-radius:22px;background:#000;display:block;max-width:100%}

/* cta band */
.ctaband{border-block:1px solid var(--line);background:var(--deep)}
.ctaband .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem 2rem}
.ctaband h2{font-size:clamp(1.5rem,3vw,2.3rem);font-weight:800}
.ctaband p{color:var(--mist)}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,4rem);align-items:start}
@media (max-width:860px){.contact{grid-template-columns:1fr}}
.contact h2{font-size:clamp(2.2rem,5vw,4rem);font-weight:800}
.contact .big{color:var(--mist);font-size:1.1rem;margin-top:1rem;max-width:34rem}
.details{display:grid;gap:.9rem;margin-top:1.6rem}
.detail{display:grid;gap:.15rem}
.detail .k{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--aqua)}
.detail .v{font-size:1.05rem;user-select:all}
form{display:grid;gap:.9rem;border:1px solid var(--line);border-radius:22px;padding:1.5rem;background:var(--ink)}
label{display:grid;gap:.35rem;font-size:.85rem;color:var(--mist)}
input,textarea,select{font:inherit;color:var(--foam);background:var(--abyss);border:1px solid var(--line);border-radius:12px;padding:.8em .9em;width:100%;min-width:0}
textarea{min-height:120px;resize:vertical}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}
@media (max-width:520px){.row2{grid-template-columns:1fr}}
.sent{display:none;border-radius:12px;padding:.9em 1em;background:rgba(46,230,197,.12);border:1px solid var(--aqua-deep);font-size:.95rem}
.sent.show{display:block}

/* footer */
footer{border-top:1px solid var(--line);padding-block:2.5rem 3rem;color:var(--mist);font-size:.88rem}
footer .wrap{display:grid;gap:1.2rem}
footer .row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem}
footer .fl{display:flex;flex-wrap:wrap;gap:1rem}
footer .fl a{text-decoration:none;color:var(--mist)}
footer .small{font-family:var(--mono);font-size:.72rem;line-height:1.7;max-width:70rem}

/* depth gauge */
.gauge{position:fixed;right:max(14px,env(safe-area-inset-right,0px));top:50%;transform:translateY(-50%);z-index:7;display:grid;gap:.4rem;justify-items:end;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;color:var(--mist);pointer-events:none}
.gauge .d{font-size:1.15rem;color:var(--aqua);font-variant-numeric:tabular-nums;transition:color .3s}
.gauge .bar{width:3px;height:140px;background:var(--line);border-radius:3px;position:relative;overflow:hidden}
.gauge .bar i{position:absolute;left:0;top:0;width:100%;height:0;background:var(--aqua);transition:height .3s,background .3s}
.gauge.b .d{color:var(--buoy)}.gauge.b .bar i{background:var(--buoy)}
@media (max-width:1000px){.gauge{display:none}}

/* reveal */
.rv{opacity:.001;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}
.no-js .rv{opacity:1;transform:none}