/* learn.css - Trilivy Learn (learn.trilivy.app). One stylesheet for every page. */
:root{
  --navy:#0a2a4a; --blue:#1a5276; --sky:#2980b9; --teal:#14a085; --teal-l:#e3f6f1;
  --ink:#1f2d3a; --muted:#5d6d7e; --line:#d9e2ea; --bg:#f4f7fa; --card:#fff;
  --warn:#b9770e; --warn-l:#fdf3e1; --bad:#a93226; --bad-l:#fdecea; --ok:#1e8449; --ok-l:#e8f6ee;
  --r:12px; --shadow:0 1px 2px rgba(10,42,74,.06),0 4px 16px rgba(10,42,74,.06);
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--sky)}
h1,h2,h3{color:var(--navy);line-height:1.25;margin:0 0 .5em}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* top bar */
.top{background:var(--navy);color:#fff;position:sticky;top:0;z-index:20}
.top .wrap{display:flex;align-items:center;gap:18px;height:58px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:650;font-size:17px}
.brand img{height:26px;filter:brightness(0) invert(1)}
.brand span{color:#7fe0c8}
.nav{display:flex;gap:4px;margin-left:12px}
.nav a{color:#cfe0ee;text-decoration:none;padding:7px 12px;border-radius:8px;font-size:14px}
.nav a:hover,.nav a.on{background:rgba(255,255,255,.1);color:#fff}
.who{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:#cfe0ee;min-width:0}
.who .chip{background:rgba(255,255,255,.12);border-radius:20px;padding:4px 10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:320px}
.who a{color:#fff;text-decoration:none;border:1px solid rgba(255,255,255,.3);border-radius:8px;padding:5px 10px}
@media (max-width:720px){.nav{display:none}.who .chip{max-width:150px}}

/* hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 60%,#1d6f8f 100%);color:#fff;padding:56px 0 64px}
.hero .kicker{text-transform:uppercase;letter-spacing:.12em;font-size:12px;color:#7fe0c8;font-weight:700}
.hero h1{color:#fff;font-size:clamp(28px,4.4vw,46px);margin:10px 0 14px;max-width:780px}
.hero p.lead{font-size:18px;color:#d6e6f2;max-width:720px;margin:0 0 26px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:10px;padding:11px 18px;font-weight:650;font-size:14px;cursor:pointer;text-decoration:none;font-family:inherit}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:#0f8a72}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn-line{background:#fff;color:var(--blue);border:1px solid var(--line)}
.btn-line:hover{background:#eef5fb}
.btn[disabled],.btn.off{opacity:.45;cursor:not-allowed;pointer-events:none}

/* sections */
.sec{padding:44px 0}
.sec h2{font-size:24px}
.sec p.sub{color:var(--muted);margin:-4px 0 22px;max-width:760px}
.pillars{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.pillar{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow)}
.pillar .ic{width:38px;height:38px;border-radius:10px;background:var(--teal-l);color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:10px}
.pillar h3{font-size:16px;margin-bottom:6px}
.pillar p{margin:0;color:var(--muted);font-size:14px}
.flow{display:flex;gap:0;flex-wrap:wrap;counter-reset:f;margin-top:6px}
.flow div{flex:1 1 160px;padding:14px 16px 14px 46px;position:relative;background:var(--card);border:1px solid var(--line);margin:-1px 0 0 -1px;font-size:14px}
.flow div:first-child{border-radius:var(--r) 0 0 var(--r)}
.flow div:last-child{border-radius:0 var(--r) var(--r) 0}
.flow div::before{counter-increment:f;content:counter(f);position:absolute;left:14px;top:14px;width:22px;height:22px;border-radius:50%;background:var(--navy);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.flow b{display:block;color:var(--navy)}
.flow span{color:var(--muted);font-size:13px}
@media (max-width:720px){.flow div,.flow div:first-child,.flow div:last-child{border-radius:0;flex-basis:100%}}

/* course cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s}
a.card:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(10,42,74,.12)}
.card .splash{height:132px;padding:18px;color:#fff;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.card .splash::after{content:"";position:absolute;right:-40px;bottom:-60px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.09)}
.card .code{font:700 12px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.08em;background:rgba(0,0,0,.18);padding:5px 8px;border-radius:6px;align-self:flex-start}
.card .splash h3{color:#fff;font-size:20px;margin:0;position:relative;z-index:1}
.card .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card .body p{margin:0;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:12px;background:var(--bg);border:1px solid var(--line);border-radius:20px;padding:2px 9px;color:var(--muted)}
.tag.ok{background:var(--ok-l);border-color:#bfe5cd;color:var(--ok)}
.bar{height:6px;border-radius:6px;background:#e6edf3;overflow:hidden}
.bar i{display:block;height:100%;background:var(--teal);border-radius:6px}
.card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.g0{background:linear-gradient(135deg,#0a2a4a,#1a5276)}
.g1{background:linear-gradient(135deg,#0e6655,#14a085)}
.g2{background:linear-gradient(135deg,#1a5276,#2e86c1)}
.g3{background:linear-gradient(135deg,#4a235a,#7d3c98)}
.g4{background:linear-gradient(135deg,#7e5109,#ca6f1e)}
.g5{background:linear-gradient(135deg,#17202a,#2c3e50)}

/* course page */
.chead{padding:40px 0 34px;color:#fff}
.chead h1{color:#fff;font-size:clamp(26px,3.6vw,38px);margin:8px 0}
.chead p{color:#e2edf5;max-width:760px;margin:0 0 18px}
.cols{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}
@media (max-width:900px){.cols{grid-template-columns:1fr}}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow)}
.panel+.panel{margin-top:16px}
.mod{border:1px solid var(--line);border-radius:10px;margin-bottom:12px;overflow:hidden;background:#fff}
.mod h3{font-size:15px;margin:0;padding:12px 14px;background:#f8fafc;border-bottom:1px solid var(--line)}
.mod h3 small{color:var(--muted);font-weight:400}
.steps{list-style:none;margin:0;padding:4px 0}
.steps li a,.steps li span.lk{display:flex;align-items:center;gap:10px;padding:8px 14px;color:var(--ink);text-decoration:none;font-size:14px}
.steps li a:hover{background:#f2f7fb}
.st{width:20px;height:20px;border-radius:50%;border:2px solid #c7d3de;flex:none;display:flex;align-items:center;justify-content:center;font-size:11px;color:#fff}
.st.done{background:var(--teal);border-color:var(--teal)}
.st.lock{border-style:dashed}
.kind{margin-left:auto;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.objs{margin:0;padding-left:18px;color:var(--muted);font-size:14px}
.objs li{margin:3px 0}
.kv{display:flex;justify-content:space-between;font-size:14px;padding:6px 0;border-bottom:1px dashed var(--line)}
.kv:last-child{border:0}
.kv span{color:var(--muted)}

/* player */
.player{display:grid;grid-template-columns:300px minmax(0,1fr);min-height:calc(100vh - 58px)}
.side{background:#fff;border-right:1px solid var(--line);padding:16px 0;overflow:auto;max-height:calc(100vh - 58px);position:sticky;top:58px}
.side .ct{padding:0 16px 12px;border-bottom:1px solid var(--line);margin-bottom:8px}
.side .ct a{font-size:12px;text-decoration:none}
.side .ct b{display:block;color:var(--navy);margin:4px 0 8px}
.side .mt{padding:10px 16px 4px;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.side .steps li a{padding:7px 16px;font-size:13.5px}
.side .steps li a.cur{background:#e9f3fa;font-weight:600;box-shadow:inset 3px 0 0 var(--sky)}
.side .steps li span.lk{padding:7px 16px;font-size:13.5px;color:#9aa8b5}
.main{padding:24px;min-width:0}
.main .frame{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.main iframe{width:100%;border:0;display:block;min-height:70vh}
.pnav{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:16px;flex-wrap:wrap}
.toggle-side{display:none}
@media (max-width:900px){
  .player{grid-template-columns:1fr}
  .side{position:static;max-height:none;border-right:0;border-bottom:1px solid var(--line);display:none}
  .side.open{display:block}
  .toggle-side{display:inline-flex;margin-bottom:12px}
  .main{padding:14px}
}

/* checks (quiz, assessment, hands-on) */
.check h2{font-size:22px}
.check .intro{color:var(--muted);margin-bottom:18px}
.q{border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:14px;background:#fff}
.q .qn{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.q .scen{background:#f6f9fb;border-left:3px solid var(--sky);padding:10px 12px;border-radius:6px;font-size:14px;margin:6px 0 10px}
.q p.qt{font-weight:600;margin:0 0 10px}
.opt{display:flex;gap:10px;align-items:flex-start;padding:9px 11px;border:1px solid var(--line);border-radius:8px;margin-bottom:7px;cursor:pointer;font-size:14px}
.opt:hover{background:#f6fafd}
.opt input{margin-top:3px}
.opt.right{background:var(--ok-l);border-color:#a9dcbc}
.opt.wrong{background:var(--bad-l);border-color:#f2b8b0}
.fb{font-size:13.5px;margin-top:8px;padding:9px 11px;border-radius:8px;background:#f4f7fa;color:var(--ink)}
.result{border-radius:var(--r);padding:18px 20px;margin-bottom:18px;display:flex;gap:16px;align-items:center}
.result.ok{background:var(--ok-l);border:1px solid #bfe5cd}
.result.bad{background:var(--bad-l);border:1px solid #f2c3bc}
.result.wait{background:var(--warn-l);border:1px solid #f1d9ad}
.result .big{font-size:34px;font-weight:800;color:var(--navy);min-width:86px;text-align:center}
.result p{margin:0}
.ho-block{margin-bottom:14px}
.ho-block h3{font-size:15px;margin-bottom:6px}
.ho-block ol{margin:0;padding-left:20px}
.ho-block ol li{margin:5px 0}
textarea{width:100%;min-height:260px;border:1px solid var(--line);border-radius:10px;padding:12px;font:14px/1.5 inherit;font-family:inherit;resize:vertical}
textarea:focus,input:focus{outline:2px solid var(--sky);outline-offset:-1px}
details{border:1px solid var(--line);border-radius:8px;padding:8px 12px;background:#fbfcfd;margin-bottom:12px}
details summary{cursor:pointer;font-weight:600;color:var(--blue)}
.timer{font:700 14px ui-monospace,Menlo,monospace;background:var(--navy);color:#fff;border-radius:8px;padding:6px 10px}

/* misc */
.note{background:var(--warn-l);border:1px solid #f1d9ad;border-radius:10px;padding:12px 14px;font-size:14px;margin-bottom:16px}
.empty{background:#fff;border:1px dashed var(--line);border-radius:var(--r);padding:30px;text-align:center;color:var(--muted)}
.foot-site{color:var(--muted);font-size:12.5px;text-align:center;padding:30px 0 40px}
table.t{width:100%;border-collapse:collapse;font-size:13.5px;background:#fff}
table.t th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);padding:8px 10px;border-bottom:2px solid var(--line);white-space:nowrap}
table.t td{padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.tabs a{padding:7px 13px;border-radius:8px;text-decoration:none;color:var(--blue);background:#fff;border:1px solid var(--line);font-size:14px}
.tabs a.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.scroll-x{overflow-x:auto}