/* Silver & Sails website. Colors and fonts follow brand/BRAND.md. */
:root{
  --sea:#13202b;--sea2:#1c2d3a;--sea3:#24394a;
  --title:#d8a43f;--gold:#f2c14e;--oldgold:#e3a92c;--foam:#f5ead0;--foam2:#c9d3d9;
  --bg:#f7eed6;--card:#fffaf0;--panel2:#efdfb6;--line:#d2b46a;--text:#1c2d3a;--muted:#55636d;
  --oxblood:#8a1c1c;--red:#c0392b;--teal:#1f7a8c;--green:#2e8b57;
  --display:'IM Fell English SC',Georgia,serif;--head:'Alegreya SC',Georgia,serif;--sans:'Nunito',system-ui,-apple-system,'Segoe UI',sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-weight:600;font-size:18px;line-height:1.6;-webkit-font-smoothing:antialiased}
img,video,svg{max-width:100%;height:auto;display:block}
a{color:var(--teal)}
h1,h2,h3{margin:0;text-wrap:balance;line-height:1.12;font-weight:400}
p{margin:0 0 1em}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:720px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.rule{display:flex;align-items:center;gap:12px;color:var(--title);margin:14px auto;justify-content:center}
.rule::before,.rule::after{content:"";height:1px;width:72px;background:currentColor;opacity:.7}
.rule span{width:7px;height:7px;background:currentColor;transform:rotate(45deg)}
.eyebrow{font-family:var(--sans);font-weight:900;text-transform:uppercase;letter-spacing:.14em;font-size:14px;color:var(--teal);margin-bottom:10px}
.dark .eyebrow{color:var(--gold)}
section{padding:88px 0}
/* headings: Alegreya SC (oxblood) on light, IM Fell SC (gold) on navy */
section h2{font-family:var(--head);font-weight:800;font-size:clamp(32px,5vw,46px);color:var(--oxblood);margin-bottom:18px}
.dark{background:var(--sea);color:var(--foam)}
.dark h2{font-family:var(--display);font-weight:400;font-size:clamp(36px,5.6vw,54px);color:var(--title)}
.dark a{color:var(--gold)}
.lede{font-size:20px;color:var(--muted)}
.dark .lede{color:var(--foam2)}

/* nav */
.nav{position:absolute;top:0;left:0;right:0;z-index:5}
.nav .wrap{display:flex;justify-content:space-between;align-items:center;height:72px}
.nav .mark{display:flex;align-items:center;gap:10px;font-family:var(--display);color:var(--title);text-decoration:none;letter-spacing:.03em;font-size:24px}
.nav .mark img{width:40px;height:40px}
.nav nav{display:flex;gap:22px;align-items:center}
.nav nav a{color:#cfd8de;text-decoration:none;font-size:16px;font-weight:700}
.nav nav a:hover{color:var(--gold)}
.nav nav a.keep{color:var(--sea);background:linear-gradient(180deg,#ffd76e,#e8a92a);padding:7px 14px;border-radius:10px;box-shadow:0 2px 0 #7d5510;font-weight:800}
@media (max-width:760px){.nav nav a:not(.keep){display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--sans);font-weight:800;font-size:19px;text-decoration:none;padding:14px 26px;border-radius:12px;border:2px solid transparent;cursor:pointer;transition:transform .15s,filter .15s}
.btn:hover{transform:translateY(-1px);filter:brightness(1.05)}
.btn.pri{background:linear-gradient(180deg,#ffd76e,#e8a92a);color:var(--sea);border-color:#a8771a;box-shadow:0 4px 0 #7d5510}
.btn.ghost{border-color:rgba(242,193,78,.6);color:var(--gold);background:rgba(19,32,43,.4)}
.btn.sec{background:#fff7e2;color:var(--text);border-color:var(--line);box-shadow:0 3px 0 #b8964a}
.btn:focus-visible{outline:3px solid var(--gold);outline-offset:3px}

/* hero */
.hero{position:relative;background:radial-gradient(ellipse at 50% 22%,rgba(31,122,140,.42) 0%,transparent 55%),radial-gradient(ellipse at 50% 30%,#1f3040 0%,var(--sea) 62%,#0d161e 100%);color:var(--foam);text-align:center;padding:96px 0 80px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:url(media/chart-bg.svg) center 55%/min(1500px,160%) auto no-repeat;opacity:.12;pointer-events:none}
.hero .wrap{position:relative}
.hero .logo{width:min(640px,100%);margin:0 auto;filter:drop-shadow(0 18px 30px rgba(0,0,0,.5))}
.hero .tag{font-family:var(--display);font-size:clamp(22px,3vw,28px);color:var(--title);margin:14px 0 18px;letter-spacing:.02em}
.hero .pitch{max-width:600px;margin:0 auto 32px;font-size:19px;color:var(--foam2)}
.hero .ctas{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero .fine{margin-top:18px;font-size:15px;color:#8fa0ab;letter-spacing:.03em}
.trailer{margin:60px auto 0;max-width:920px;border:2px solid var(--oldgold);border-radius:16px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.55);background:#000;aspect-ratio:16/9}
.trailer video{width:100%;height:100%}

/* cards shared */
.step,.card,.ticket,.extras span{background:var(--card);border:2px solid var(--oldgold);border-radius:16px;box-shadow:0 5px 0 rgba(28,45,58,.14)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px;counter-reset:s}
.step{padding:24px 22px;position:relative}
.step::before{counter-increment:s;content:counter(s,upper-roman);font-family:var(--head);font-weight:800;color:var(--oldgold);font-size:30px;display:block;margin-bottom:4px}
.step h3{font-family:var(--head);font-weight:800;font-size:25px;color:var(--oxblood);margin-bottom:8px}
.step p{font-size:16.5px;margin:0;color:var(--muted)}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* chart */
.chartsec{background:linear-gradient(180deg,var(--sea) 0%,var(--sea2) 100%)}
.chartgrid{display:grid;grid-template-columns:1fr 1.5fr;gap:48px;align-items:center}
@media (max-width:860px){.chartgrid{grid-template-columns:1fr}}
.chart svg{width:100%;height:auto}
.chart{border:2px solid rgba(216,164,63,.45);border-radius:10px;overflow:hidden;background:#152532;box-shadow:0 0 0 6px rgba(28,45,58,.6),0 0 0 7px rgba(216,164,63,.25)}
.chart svg{display:block}
.chart .grat{stroke:#24394a;stroke-width:1;fill:none}
.chart .land{fill:#2a4153;stroke:rgba(216,164,63,.55);stroke-width:1;stroke-linejoin:round}
.chart .tropic{stroke:var(--gold);stroke-width:1.2;stroke-dasharray:6 6;opacity:.5;fill:none}
.chart .eq{opacity:.3}
.chart .tlab{fill:#8fa0ab;font:italic 600 15px var(--sans)}
.chart circle{fill:var(--gold);stroke:var(--sea);stroke-width:1.5}
.chart circle:hover{fill:#fff}
.chart .plab{fill:var(--foam);font:800 16px var(--sans);paint-order:stroke;stroke:#152532;stroke-width:4px;stroke-linejoin:round}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:18px 26px;margin-top:28px}
.stat b{display:block;font-family:var(--display);font-weight:400;font-size:48px;color:var(--title);line-height:1}
.stat span{font-size:16px;color:var(--foam2)}

/* features */
.feat{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-top:72px}
.feat:first-of-type{margin-top:48px}
.feat.flip .shot{order:2}
.feat .shot{border-radius:16px;overflow:hidden;border:2px solid var(--oldgold);box-shadow:0 8px 0 rgba(28,45,58,.14)}
.feat h3{font-family:var(--head);font-weight:800;font-size:32px;color:var(--oxblood);margin-bottom:12px}
.feat p{color:var(--muted)}
@media (max-width:820px){.feat{grid-template-columns:1fr;gap:22px}.feat.flip .shot{order:0}}
.extras{display:flex;flex-wrap:wrap;gap:10px;margin-top:60px;justify-content:center}
.extras span{border-radius:999px;padding:6px 16px;font-size:16px;font-weight:700;box-shadow:0 3px 0 rgba(28,45,58,.12)}

/* parents */
.promise{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px}
.promise div{background:var(--sea2);border:1.5px solid rgba(242,193,78,.4);border-radius:14px;padding:18px 18px 16px}
.promise h3{font-family:var(--sans);font-weight:900;font-size:20px;color:var(--gold);margin-bottom:6px}
.promise p{font-size:16.5px;color:var(--foam2);margin:0}
@media (max-width:820px){.promise{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.promise{grid-template-columns:1fr}}
.callout{margin-top:40px;background:var(--sea3);border-left:4px solid var(--oldgold);padding:22px 26px;border-radius:0 14px 14px 0}
.callout h3{font-family:var(--sans);font-weight:900;font-size:21px;color:var(--gold);margin-bottom:8px}
.callout p{color:var(--foam2);margin:0}

/* teachers */
.two{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:start}
@media (max-width:820px){.two{grid-template-columns:1fr;gap:28px}}
.ticks{list-style:none;padding:0;margin:0}
.ticks li{padding:12px 0 12px 32px;border-bottom:1px solid var(--line);position:relative}
.ticks li::before{content:"";position:absolute;left:4px;top:21px;width:9px;height:9px;background:var(--oldgold);transform:rotate(45deg)}
.ticks b{font-weight:900}
.card{padding:28px}
.card h3{font-family:var(--head);font-weight:800;font-size:28px;color:var(--oxblood);margin-bottom:10px}

/* story */
.story{background:var(--panel2)}
.story blockquote{margin:0;font-size:clamp(20px,2.6vw,25px);line-height:1.55;font-weight:700;color:var(--text)}
.story .sig{margin-top:22px;font-family:var(--head);font-weight:800;font-size:20px;color:var(--oxblood)}

/* price */
.price{text-align:center}
.ticket{max-width:520px;margin:36px auto 0;padding:36px 30px}
.ticket .amt{font-family:var(--head);font-weight:800;font-size:76px;color:var(--oxblood);line-height:1}
.ticket .once{font-size:18px;color:var(--muted);margin:6px 0 22px}
.ticket ul{list-style:none;padding:0;margin:0 0 26px;text-align:left}
.ticket li{padding:9px 0 9px 30px;position:relative;border-bottom:1px dashed var(--line)}
.ticket li::before{content:"✓";position:absolute;left:4px;color:var(--green);font-weight:900}
.never{margin-top:22px;font-size:16px;color:var(--muted)}

/* faq */
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{cursor:pointer;font-weight:800;font-size:20px;color:var(--text);padding:14px 30px 14px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:10px;font-weight:900;font-size:24px;color:var(--oxblood)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);margin:0 0 16px}

/* final + footer */
.final{text-align:center}
.final .compact{width:180px;margin:0 auto 18px;filter:drop-shadow(0 10px 20px rgba(0,0,0,.45))}
footer{background:#0d161e;color:#8fa0ab;padding:40px 0;font-size:15px}
footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer a{color:#cfd8de;text-decoration:none;margin-right:18px;font-weight:700}
footer a:hover{color:var(--gold)}

/* doc pages */
.doc{padding:120px 0 80px}
.doc h1{font-family:var(--head);font-weight:800;font-size:clamp(38px,6vw,54px);color:var(--oxblood);margin-bottom:8px}
.doc h2{font-family:var(--head);font-weight:800;font-size:27px;color:var(--text);margin:40px 0 12px}
.doc .updated{color:var(--muted)}
.doc .nav{position:absolute;background:var(--sea)}
.doc li{margin-bottom:8px}
.facts{width:100%;border-collapse:collapse;font-size:17px}
.facts th{text-align:left;font-weight:700;color:var(--muted);width:34%;padding:10px 12px 10px 0;vertical-align:top;border-bottom:1px solid var(--line)}
.facts td{padding:10px 0;border-bottom:1px solid var(--line)}
.shots{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-top:16px}
.shots a{display:block;border:2px solid var(--oldgold);border-radius:12px;overflow:hidden;background:var(--sea)}
.shots a.logo-dl{padding:14px;display:flex;align-items:center;justify-content:center}
pre.copy{white-space:pre-wrap;background:var(--card);border:2px solid var(--line);padding:18px;font-family:var(--sans);font-weight:600;font-size:17px;border-radius:12px}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}
@media (max-width:600px){.chart .plab{font-size:21px;stroke-width:5px}.chart .tlab{font-size:19px}.chart circle{r:6.5}}

/* forms */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form{display:grid;gap:14px}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:600px){.form .row2{grid-template-columns:1fr}}
.form label{display:grid;gap:6px;font-weight:800;font-size:16px}
.form label small{font-weight:600;color:var(--muted)}
.form input[type=text],.form input[type=email],.form select,.form textarea{font:600 17px var(--sans);color:var(--text);background:#fffdf7;border:2px solid var(--line);border-radius:10px;padding:11px 12px;width:100%}
.form textarea{min-height:130px;resize:vertical}
.form input:focus-visible,.form select:focus-visible,.form textarea:focus-visible{outline:3px solid var(--gold);outline-offset:1px;border-color:var(--oldgold)}
.form .check{display:flex;gap:10px;align-items:flex-start;font-weight:700;font-size:15.5px}
.form .check input{width:20px;height:20px;margin-top:3px;flex:none;accent-color:var(--oxblood)}
.form .radios{display:flex;flex-wrap:wrap;gap:8px 18px;font-weight:700}
.form .radios label{display:flex;gap:6px;align-items:center;font-size:16px}
.form .radios input{accent-color:var(--oxblood);width:18px;height:18px}
.form button:disabled{opacity:.6;cursor:default;transform:none}
.form-msg{font-weight:800;min-height:1.4em;margin:0}
.form-msg.ok{color:var(--green)}
.form-msg.err{color:var(--red)}
.dark .form label,.dark .form .check{color:var(--foam)}
.dark .form label small{color:var(--foam2)}
.dark .form-msg.ok{color:#7fd6a0}
.dark .form-msg.err{color:#ff8a7a}
.fine-print{font-size:14px;color:var(--muted)}
.dark .fine-print{color:#8fa0ab}

/* signup band */
.signup{background:linear-gradient(180deg,var(--sea2),var(--sea))}
.signup .wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:center}
@media (max-width:820px){.signup .wrap{grid-template-columns:1fr;gap:24px}}
.signup .form{background:rgba(255,255,255,.04);border:1.5px solid rgba(242,193,78,.35);border-radius:16px;padding:22px}
.signup .inline{display:flex;gap:10px;flex-wrap:wrap}
.signup .inline input{flex:1 1 240px}
.signup .inline select{flex:0 1 160px;width:auto}

/* teachers page */
.tpage section{padding:64px 0}
.tpage .thero{background:radial-gradient(ellipse at 50% 0%,rgba(31,122,140,.4),transparent 60%),var(--sea);color:var(--foam);padding:130px 0 70px;text-align:center}
.thero h1{font-family:var(--display);font-weight:400;font-size:clamp(40px,6.5vw,64px);color:var(--title);line-height:1.05}
.thero p{max-width:640px;margin:16px auto 26px;font-size:20px;color:var(--foam2)}
.learn{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
@media (max-width:900px){.learn{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.learn{grid-template-columns:1fr}}
.learn div{background:var(--card);border:2px solid var(--oldgold);border-radius:16px;padding:20px;box-shadow:0 5px 0 rgba(28,45,58,.14)}
.learn h3{font-family:var(--head);font-weight:800;font-size:22px;color:var(--oxblood);margin-bottom:8px}
.learn p{font-size:16px;color:var(--muted);margin:0}
.plan{counter-reset:p;list-style:none;padding:0;margin:24px 0 0;display:grid;gap:12px}
.plan li{background:var(--card);border:2px solid var(--line);border-radius:14px;padding:16px 18px 16px 70px;position:relative}
.plan li::before{counter-increment:p;content:counter(p);position:absolute;left:18px;top:14px;width:36px;height:36px;border-radius:50%;background:var(--oxblood);color:#fff;font-weight:900;display:flex;align-items:center;justify-content:center}
.plan b{display:block;font-weight:900}
.qs{columns:2;column-gap:40px;padding-left:20px}
@media (max-width:760px){.qs{columns:1}}
.qs li{break-inside:avoid;margin-bottom:12px}
.req{background:var(--panel2)}
.req .card{max-width:760px;margin:24px auto 0}
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
@media (max-width:820px){.quotes{grid-template-columns:1fr}}
.quotes figure{margin:0;background:var(--card);border:2px solid var(--oldgold);border-radius:16px;padding:22px;box-shadow:0 5px 0 rgba(28,45,58,.14)}
.quotes blockquote{margin:0 0 12px;font-weight:700;font-size:18px}
.quotes figcaption{font-family:var(--head);font-weight:800;color:var(--oxblood)}