/* The landing site's theme (innovation-hacks-ai.net, custom.css): dark ground #0C111D, surface #161B26,
   primary #379AE6 with #0c87e5 on hover, pale accent #7ec8f8, text #f5f5f5 / #94969C, hairlines of the primary at
   low alpha, 20px card radius, Urbanist, 0.5px letter-spacing. One theme, as the landing site has one. */
:root{
  --bg:#0C111D; --surface:#161B26; --surface-2:rgba(22,27,38,.5); --sunk:#1F242F;
  --ink:#f5f5f5; --ink-2:#CECFD2; --muted:#94969C;
  --rule:rgba(55,154,230,.12); --rule-strong:rgba(55,154,230,.3);
  --accent:#379AE6; --accent-hover:#0c87e5; --accent-pale:#7ec8f8; --accent-soft:rgba(55,154,230,.1);
  --good:#34d399; --good-soft:rgba(52,211,153,.1); --warn:#fbbf24; --warn-soft:rgba(251,191,36,.1);
  --bad:#f87171; --bad-soft:rgba(248,113,113,.08);
  --sans:"Urbanist","Segoe UI",system-ui,sans-serif; --mono:"SF Mono","Fira Code",Consolas,ui-monospace,monospace;
}
*{box-sizing:border-box}
html{color-scheme:dark}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--sans);letter-spacing:.5px}
a{color:var(--accent-pale)}
header.top{position:sticky;top:0;z-index:10;border-bottom:1px solid var(--rule);background:rgba(12,17,29,.85);backdrop-filter:blur(10px)}
header.top .in{max-width:1100px;margin:0 auto;padding:14px 24px;display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center}
@media (min-width:900px){header.top .in{flex-wrap:nowrap}header.top nav{flex-wrap:nowrap;white-space:nowrap}}
header.top .brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);margin-right:auto;font-weight:700;font-size:17px}
header.top .brand img{height:40px;width:auto}
header.top .brand small{font-weight:500;color:var(--muted);font-size:13px;letter-spacing:.08em;text-transform:uppercase}
header.top nav{display:flex;flex-wrap:wrap;gap:4px 22px;align-items:center}
header.top nav a{text-decoration:none;color:#b0b3b8;font-weight:500;font-size:15px}
header.top nav a:hover{color:var(--ink)}
header.top nav a.cta{background:var(--accent);color:#fff;border-radius:999px;padding:8px 18px;font-weight:600;box-shadow:0 2px 12px rgba(55,154,230,.25)}
header.top nav a.cta:hover{background:var(--accent-hover)}
main{max-width:1100px;margin:0 auto;padding:48px 24px 90px}
.prose{max-width:72ch}
h1{font-size:clamp(32px,4.6vw,48px);line-height:1.12;margin:0 0 14px;font-weight:800;letter-spacing:-.01em;text-wrap:balance}
h1 em{font-style:normal;color:var(--accent-pale)}
h2{font-size:26px;margin:44px 0 10px;font-weight:700;letter-spacing:0}
h3{font-size:19px;margin:28px 0 6px;font-weight:700}
.lede{font-size:19px;color:var(--ink-2)}
.muted{color:var(--muted)}
.eyebrow{display:inline-block;font:600 12px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--accent-pale);background:var(--accent-soft);border:1px solid var(--rule-strong);border-radius:999px;padding:8px 16px;margin-bottom:18px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px;margin:32px 0}
.card{background:var(--surface-2);border:1px solid var(--rule);border-radius:20px;padding:30px 28px}
.card h3{margin-top:0}
.card .eyebrow{margin-bottom:14px}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:600;padding:10px 22px;border-radius:999px;border:0;cursor:pointer;font:600 15px var(--sans);letter-spacing:.3px;box-shadow:0 2px 12px rgba(55,154,230,.25);transition:background .2s}
.btn:hover{background:var(--accent-hover)}
.btn.secondary{background:var(--sunk);color:var(--ink);box-shadow:none;border:1px solid var(--rule-strong)}
.btn.secondary:hover{background:#262c38}
.btn.danger{background:var(--bad);color:#1a0b0b;box-shadow:none}
.btn[disabled]{opacity:.5;cursor:default}
.btn:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,a:focus-visible{outline:2px solid var(--accent-pale);outline-offset:2px}
form.stack{display:grid;gap:16px;max-width:580px}
label{display:grid;gap:6px;font-size:14px;color:var(--muted)}
input[type=text],input[type=email],input[type=tel],input[type=url],input[type=number],input[type=password],input[type=file],textarea,select{
  font:15px var(--sans);letter-spacing:.3px;padding:10px 12px;border:1px solid var(--rule-strong);border-radius:10px;background:var(--surface);color:var(--ink);width:100%}
input[type=number]{font-family:var(--mono)}
input[type=file]{padding:8px}
textarea{min-height:120px;resize:vertical}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.check input{margin-top:5px;accent-color:var(--accent)}
input[type=radio]{accent-color:var(--accent)}
.notice{border-radius:14px;padding:14px 18px;margin:18px 0;border:1px solid var(--rule)}
.notice.info{background:var(--accent-soft)}
.notice.warn{background:var(--warn-soft);border-color:rgba(251,191,36,.3)}
.notice.good{background:var(--good-soft);border-color:rgba(52,211,153,.3)}
.notice.bad{background:var(--bad-soft);border-color:rgba(248,113,113,.3)}
.tbl{overflow-x:auto;border:1px solid var(--rule);border-radius:14px;background:var(--surface-2);margin:16px 0}
table{border-collapse:collapse;width:100%;font-size:14.5px}
th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--rule);vertical-align:top}
th{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:rgba(55,154,230,.06)}
tr:last-child td{border-bottom:none}
td.n,th.n{text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:0}
pre{font:14px/1.55 var(--mono);letter-spacing:0;background:rgba(10,14,24,.9);border:1px solid var(--rule);border-radius:12px;padding:14px 16px;overflow-x:auto;color:var(--ink-2)}
code{font-family:var(--mono);font-size:.9em;letter-spacing:0;color:var(--accent-pale)}
/* syllabus */
.hero2{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:40px;align-items:center;margin-bottom:28px}
.hero2 .btn{margin-right:8px;margin-bottom:8px}
.ladder{margin:0;background:var(--surface-2);border:1px solid var(--rule);border-radius:20px;padding:20px 18px 14px}
.ladder svg{width:100%;height:auto;display:block}
.ladder figcaption{font-size:13.5px;color:var(--muted);margin-top:8px;text-align:center}
.glance{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:24px;align-items:center;margin:28px 0 10px;padding:26px 0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.clock{display:flex;gap:18px;align-items:center}
.clock svg{width:120px;height:120px;flex:none}
.clock-legend{display:grid;gap:8px;font-size:14px;color:var(--ink-2)}
.clock-legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:8px;vertical-align:-1px}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.stat{text-align:center;display:grid;gap:6px}
.stat b{font:800 40px/1 var(--sans);color:var(--accent-pale);letter-spacing:-.01em}
.stat span{font:600 12px/1.4 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.week{margin:48px 0 0}
.week-card{display:grid;grid-template-columns:auto minmax(0,1fr);gap:20px;align-items:start;background:linear-gradient(135deg,rgba(55,154,230,.14),rgba(22,27,38,.5));border:1px solid var(--rule-strong);border-radius:20px;padding:22px 24px;margin-bottom:14px}
.week-icon{width:76px;height:76px;border-radius:18px;background:rgba(55,154,230,.14);border:1px solid var(--rule-strong);display:grid;place-items:center;color:var(--accent)}
.week-icon svg{width:48px;height:48px}
.week-no{font:600 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent-pale);margin-bottom:8px}
.week-intro h2{margin:0 0 8px;font-size:24px}
.week-outcome{margin:0;color:var(--ink-2);font-size:15px}
.daygrid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.day{background:var(--surface-2);border:1px solid var(--rule);border-radius:16px;padding:16px 18px;display:grid;gap:6px;align-content:start;position:relative}
.day.check,.day.defence{grid-column:1 / -1}
.day.check{background:rgba(251,191,36,.06);border-color:rgba(251,191,36,.3)}
.day.check .day-no{color:var(--warn)}
.day.defence{background:rgba(52,211,153,.07);border-color:rgba(52,211,153,.35)}
.day.defence .day-no{color:var(--good)}
.day.capstone{background:var(--accent-soft);border-color:var(--rule-strong)}
.day-no{font:600 11.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:6px}
.ico{width:15px;height:15px;flex:none}
.day-title{font-weight:700;font-size:17px;line-height:1.3}
.day-sub{color:var(--ink-2);font-size:14.5px;line-height:1.5}
.day-foot{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:6px;margin-top:4px}
.track{margin-top:56px}
.track h2{margin-top:0}
.trackline{list-style:none;padding:0;margin:22px 0 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;position:relative}
.trackline::before{content:"";position:absolute;left:5%;right:5%;top:9px;height:3px;background:linear-gradient(90deg,#379AE6,#7ec8f8);border-radius:3px}
.trackline li{display:grid;gap:4px;padding-top:30px;position:relative;font-size:14px;color:var(--ink-2)}
.trackline li b{color:var(--ink);font-size:16px}
.trackline .dot{position:absolute;top:2px;left:calc(50% - 9px);width:18px;height:18px;border-radius:50%;background:var(--warn);border:3px solid var(--bg)}
.trackline .final .dot{background:var(--good)}
.trackline li{text-align:center}
.cards.three{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));margin-top:48px}
@media (max-width:900px){.hero2,.glance{grid-template-columns:1fr}.trackline{grid-template-columns:1fr 1fr}.trackline::before{display:none}.trackline li{text-align:left;padding-top:0;padding-left:28px}.trackline .dot{left:0;top:4px}}
@media (max-width:760px){.daygrid{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}.stat b{font-size:32px}.week-card{grid-template-columns:1fr}.clock{flex-direction:column;align-items:flex-start}}
.item{background:var(--surface-2);border:1px solid var(--rule);border-radius:20px;padding:22px 24px;margin:20px 0}
.item .id{font:600 12px var(--mono);color:var(--accent-pale);letter-spacing:.1em}
.item p{margin:10px 0}
.item .q{font-weight:700;color:var(--ink)}
.opts{display:grid;gap:10px;margin:12px 0}
.opts label{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink);padding:10px 12px;border:1px solid var(--rule);border-radius:12px;background:var(--surface);cursor:pointer}
.opts label:hover{border-color:var(--rule-strong)}
.opts input{margin-top:4px}
.row{display:flex;flex-wrap:wrap;gap:14px;align-items:end}
.row label{min-width:190px}
.timer{position:sticky;top:69px;z-index:5;background:rgba(12,17,29,.92);backdrop-filter:blur(8px);border:1px solid var(--rule);border-radius:14px;padding:10px 18px;display:flex;gap:18px;align-items:center;font-size:14px;margin-bottom:18px}
.timer b{font-family:var(--mono);font-size:20px;letter-spacing:0;color:var(--accent-pale)}
.timer.low b{color:var(--bad)}
.timer .save{color:var(--muted);margin-left:auto}
.pill{display:inline-block;font:600 11px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;padding:5px 9px;border-radius:999px;background:var(--sunk);color:var(--ink-2);border:1px solid var(--rule)}
.pill.good{background:var(--good-soft);color:var(--good);border-color:rgba(52,211,153,.3)}
.pill.bad{background:var(--bad-soft);color:var(--bad);border-color:rgba(248,113,113,.3)}
.pill.warn{background:var(--warn-soft);color:var(--warn);border-color:rgba(251,191,36,.3)}
.pill.info{background:var(--accent-soft);color:var(--accent-pale);border-color:var(--rule-strong)}
.answer{background:var(--surface);border:1px solid var(--rule);border-radius:12px;padding:10px 14px;white-space:pre-wrap;font-size:14.5px;color:var(--ink-2)}
.key{font-size:13.5px;color:var(--muted);margin-top:8px}
.grade{display:grid;grid-template-columns:140px 1fr;gap:12px;margin-top:12px;align-items:start}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0}
.actions form{display:inline}
footer{border-top:1px solid var(--rule);color:var(--muted);font-size:13.5px;background:rgba(10,14,24,.9)}
footer .in{max-width:1100px;margin:0 auto;padding:22px 24px;display:flex;flex-wrap:wrap;gap:8px 24px}
footer a{color:var(--accent-pale)}
@media (max-width:640px){main{padding:28px 16px 60px}.grade{grid-template-columns:1fr}header.top .in{padding:12px 16px}.timer{top:0;border-radius:0;margin-inline:-16px}}