/* Student portal + admin. Loaded after styles.css and academy.css. */
body.app{background:#f4f4f2}
.topbar{background:var(--navy);color:#fff}
.topbar .bound{display:flex;align-items:center;gap:16px;min-height:72px}
.topbar .logo img{height:36px}
.topbar .who{margin-left:auto;display:flex;align-items:center;gap:14px;font-size:13.5px;color:rgba(255,255,255,.75)}
.topbar .who a{color:#fff}
.linkbtn{background:none;border:1px solid rgba(255,255,255,.25);color:#fff;font:inherit;font-size:13px;border-radius:999px;padding:8px 16px;cursor:pointer;min-height:36px}
.linkbtn:hover{background:rgba(255,255,255,.1)}
.page{padding-block:clamp(28px,4vw,48px) 80px}
.page-title{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.page-title h1{font-size:clamp(26px,3.4vw,38px);letter-spacing:-.03em;line-height:1.15}
.page-title p{color:var(--soft);margin-top:6px;font-size:15px}
.crumb{font-size:13px;color:var(--soft);margin-bottom:10px;display:inline-block}
.crumb:hover{color:var(--purple)}

.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:clamp(18px,2.4vw,28px)}
.card+.card{margin-top:16px}
.card h2{font-size:18px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.card h2 .count-pill{font-size:12px;font-weight:500;background:#f1f1f1;border-radius:999px;padding:3px 10px;color:var(--soft)}
.grid2{display:grid;grid-template-columns:1.4fr 1fr;gap:16px;align-items:start}
@media(max-width:900px){.grid2{grid-template-columns:1fr}}

/* dashboard cohort cards */
.my-cohorts{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:16px}
.my-cohort{display:flex;flex-direction:column;gap:14px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;transition:transform .2s,box-shadow .2s}
.my-cohort:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(17,27,40,.08)}
.my-cohort h3{font-size:19px;font-weight:600}
.my-cohort .meta{font-size:13.5px;color:var(--soft)}
.my-cohort .bar{background:#efefef;margin-top:0}
.my-cohort .go{margin-top:auto;font-size:14px;font-weight:500;color:var(--purple)}

/* next class hero */
.next{background:var(--navy);color:#fff;border-radius:22px;padding:clamp(22px,3vw,34px);display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;position:relative;overflow:hidden}
.next::after{content:"";position:absolute;right:-120px;top:-140px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(249,98,6,.4),transparent 65%)}
.next>*{position:relative;z-index:1}
.next small{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.55)}
.next h2{font-size:clamp(20px,2.4vw,26px);font-weight:600;margin:6px 0 4px}
.next p{color:rgba(255,255,255,.7);font-size:14px}
.next .count{margin-top:16px;max-width:360px}
.next .count div{background:rgba(255,255,255,.08)}
.next .count small{color:rgba(255,255,255,.55)}
@media(max-width:700px){.next{grid-template-columns:1fr}}

/* lists */
.list{display:grid;gap:10px}
.row{display:flex;align-items:center;gap:14px;padding:14px 16px;background:#f7f7f7;border-radius:14px;flex-wrap:wrap}
.row .grow{flex:1;min-width:180px}
.row b{display:block;font-weight:500;font-size:14.5px}
.row small{font-size:12.5px;color:var(--soft)}
.row.past{opacity:.8}
.num{flex:0 0 34px;height:34px;border-radius:10px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);font-size:12.5px;font-weight:600}
.btn-sm{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:8px 14px;border-radius:999px;font:inherit;font-size:13px;font-weight:500;
  border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;transition:border-color .2s,background .2s}
.btn-sm:hover{border-color:var(--ink)}
.btn-sm.primary{background:var(--grad);border:0;color:#fff}
.btn-sm.dark{background:var(--navy);border-color:var(--navy);color:#fff}
.btn-sm.danger{color:#b91c1c}
.btn-sm:disabled{opacity:.5;cursor:default}
.muted{color:var(--soft);font-size:14px}
.badge{display:inline-flex;font-size:11.5px;font-weight:600;border-radius:999px;padding:4px 10px;white-space:nowrap}
.badge.todo{background:#f1f1f1;color:var(--soft)}
.badge.submitted{background:#e0e7ff;color:#3730a3}
.badge.reviewed{background:#dcfce7;color:#15803d}
.badge.redo{background:#ffedd5;color:#c2410c}
.badge.live{background:#dcfce7;color:#15803d}

/* assignments */
.assign{border:1px solid var(--line);border-radius:16px;padding:18px}
.assign+.assign{margin-top:12px}
.assign-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.assign h3{font-size:15.5px;font-weight:600}
.assign p{font-size:14px;line-height:1.65;color:var(--soft);margin-top:6px}
.feedback{margin-top:12px;background:#fff8f1;border-left:3px solid var(--purple);border-radius:8px;padding:12px 14px;font-size:14px;line-height:1.6}
.inline-form{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:14px}
.inline-form input,.inline-form textarea{grid-column:1/-1}
@media(min-width:640px){.inline-form input[type=url]{grid-column:1}.inline-form textarea{grid-column:1/-1}}

/* forms */
input.in,textarea.in,select.in{width:100%;font:inherit;font-size:14px;color:var(--ink);background:#f6f6f6;border:1px solid #e2e2e2;border-radius:12px;padding:11px 13px;min-height:44px}
textarea.in{min-height:80px;resize:vertical}
input.in:focus,textarea.in:focus,select.in:focus{outline:none;border-color:var(--purple);background:#fff}
label.lb{display:block;font-size:12.5px;font-weight:500;margin-bottom:6px}
.fgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:12px}
.fgrid .full{grid-column:1/-1}
.msg{font-size:13.5px;margin-top:10px;min-height:1em}
.msg.err{color:#b91c1c}
.msg.ok{color:#15803d}

/* login / enrol */
.auth{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}
.auth-side{background:var(--navy);color:#fff;padding:clamp(28px,5vw,64px);display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.auth-side::after{content:"";position:absolute;right:-160px;bottom:-160px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(249,98,6,.4),transparent 65%)}
.auth-side>*{position:relative;z-index:1}
.auth-side .logo img{height:40px}
.auth-side h2{font-size:clamp(28px,3.6vw,44px);line-height:1.1;letter-spacing:-.03em;max-width:14ch}
.auth-side p{color:rgba(255,255,255,.7);margin-top:14px;max-width:40ch;line-height:1.7}
.auth-main{display:grid;place-items:center;padding:clamp(24px,5vw,64px)}
.auth-box{width:min(420px,100%)}
.auth-box h1{font-size:30px;letter-spacing:-.03em}
.auth-box>p{color:var(--soft);margin:8px 0 24px;line-height:1.6}
.dev-link{margin-top:16px;padding:14px;border-radius:12px;background:#fff7ed;border:1px dashed var(--purple);font-size:13px;word-break:break-all}
@media(max-width:800px){.auth{grid-template-columns:1fr}.auth-side{min-height:240px}}

/* admin */
.admin{display:grid;grid-template-columns:280px 1fr;gap:20px;align-items:start}
.admin-nav{position:sticky;top:20px}
.admin-nav a{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:12px 14px;border-radius:12px;font-size:14px}
.admin-nav a:hover{background:#f1f1f1}
.admin-nav a.on{background:var(--navy);color:#fff}
.admin-nav a small{font-size:11.5px;opacity:.7}
.tabs-bar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.tabs-bar button{font:inherit;font-size:13.5px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 16px;cursor:pointer;min-height:40px}
.tabs-bar button.on{background:var(--navy);border-color:var(--navy);color:#fff}
.tabs-bar .dot-n{display:inline-grid;place-items:center;min-width:18px;height:18px;border-radius:9px;background:var(--purple);color:#fff;font-size:11px;margin-left:6px;padding:0 5px}
table.t{width:100%;border-collapse:collapse;font-size:13.5px}
table.t th{text-align:left;font-weight:500;color:var(--soft);font-size:12px;padding:8px 10px;border-bottom:1px solid var(--line)}
table.t td{padding:12px 10px;border-bottom:1px solid #f0f0f0;vertical-align:top}
.scroll-x{overflow-x:auto}
details.edit{margin-top:10px}
details.edit summary{cursor:pointer;font-size:13px;color:var(--purple);font-weight:500}
@media(max-width:900px){.admin{grid-template-columns:1fr}.admin-nav{position:static}}

/* certificate */
.cert-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;background:#e9e7e2}
.cert{width:min(1000px,100%);aspect-ratio:1.414;background:#fffdf8;position:relative;padding:clamp(28px,6vw,72px);display:flex;flex-direction:column;
  box-shadow:0 30px 80px rgba(0,0,0,.15);overflow:hidden}
.cert::before{content:"";position:absolute;inset:14px;border:2px solid var(--navy);pointer-events:none}
.cert::after{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(249,98,6,.25),transparent 65%)}
.cert .logo img{height:clamp(30px,4vw,46px)}
.cert small{font-size:clamp(10px,1.2vw,13px);letter-spacing:.2em;text-transform:uppercase;color:var(--soft)}
.cert .name{font-size:clamp(30px,6vw,64px);font-weight:600;letter-spacing:-.03em;line-height:1.1;margin:10px 0}
.cert .course{font-size:clamp(16px,2.4vw,26px);font-weight:500}
.cert .course span{color:var(--purple)}
.cert-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:flex-end;gap:20px;font-size:clamp(10px,1.2vw,13px);color:var(--soft)}
.cert-foot b{display:block;color:var(--ink);font-size:clamp(12px,1.5vw,16px);font-weight:600}
.cert-actions{margin-top:20px;display:flex;gap:10px;justify-content:center}
@media print{.cert-wrap{background:none;padding:0}.cert{box-shadow:none;width:100%}.cert-actions{display:none}}

/* replay player + deadline */
.player-card{background:var(--navy);color:#fff;border-radius:22px;padding:clamp(14px,2vw,22px)}
.player{position:relative;aspect-ratio:16/9;border-radius:14px;overflow:hidden;background:#000}
.player iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.player-meta{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;padding:16px 6px 4px}
.player-meta h2{font-size:clamp(17px,2vw,21px);font-weight:600}
.player-meta p{font-size:13.5px;color:rgba(255,255,255,.65);margin-top:2px}
.deadline{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.75)}
.deadline .count{margin:0;grid-template-columns:repeat(4,58px);gap:6px}
.deadline .count div{background:rgba(255,255,255,.08);padding:6px 0}
.deadline .count b{font-size:16px}
.closed{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px}
.closed h2{font-size:20px;margin-bottom:6px}

/* ---------- course player ---------- */
.course{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:20px;align-items:start}
.course-side{position:sticky;top:16px;max-height:calc(100vh - 32px);overflow:auto}
@media(max-width:980px){.course{grid-template-columns:1fr}.course-side{position:static;max-height:none}}
.lesson-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:18px 4px 4px}
.lesson-head small{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--soft)}
.lesson-head h2{font-size:clamp(18px,2.2vw,24px);font-weight:600;letter-spacing:-.02em;margin-top:2px}
.lesson-nav{display:flex;gap:8px;flex-wrap:wrap}
.no-video{position:absolute;inset:0;display:grid;place-items:center;text-align:center;color:rgba(255,255,255,.75);padding:20px;font-size:14px}
.mod{border-bottom:1px solid var(--line)}
.mod:last-child{border-bottom:0}
.mod summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:10px;padding:14px 4px;font-weight:600;font-size:14.5px}
.mod summary::-webkit-details-marker{display:none}
.mod summary small{font-weight:400;color:var(--soft);white-space:nowrap}
.les{display:flex;align-items:center;gap:10px;width:100%;text-align:left;font:inherit;font-size:13.5px;color:var(--ink);background:none;border:0;
  border-radius:10px;padding:10px 8px;cursor:pointer;min-height:44px}
.les:hover{background:#f5f5f5}
.les.on{background:rgba(249,98,6,.08);color:#b54703;font-weight:500}
.les .tick{flex:0 0 20px;height:20px;border-radius:50%;border:1.5px solid #cfcfcf;display:grid;place-items:center}
.les .tick.done{background:#16a34a;border-color:#16a34a;color:#fff}
.les .tick svg{width:12px;height:12px}
.les .dur{margin-left:auto;font-size:12px;color:var(--soft);white-space:nowrap}
.les.locked{opacity:.55}
.access{border-radius:20px;padding:20px 22px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px}
.access.replay{background:#fff7ed;border:1px solid #fed7aa}
.access.ended{background:var(--navy);color:#fff}
.access h3{font-size:17px;font-weight:600}
.access p{font-size:14px;margin-top:4px;opacity:.8}
.access .count{margin:0;grid-template-columns:repeat(4,56px);gap:6px}
.access .count div{padding:6px 0}
.access.replay .count div{background:#fff}
.progress-line{display:flex;align-items:center;gap:12px;font-size:13.5px;color:var(--soft);margin-top:8px}
.progress-line .bar{flex:1;max-width:280px;margin:0;background:#e9e9e9}