/* GiangIT LMS – public + student UI */
:root{
  --navy:#0a1838; --navy-2:#0f2350; --navy-3:#13306e;
  --primary:#2563eb; --primary-d:#1d4ed8; --primary-50:#eff6ff;
  --orange:#f97316; --orange-d:#ea580c;
  --green:#16a34a; --red:#dc2626;
  --ink:#0f172a; --ink-2:#334155; --muted:#64748b; --line:#e5e7eb; --bg:#f5f7fb; --card:#fff;
  --radius:12px; --shadow:0 1px 2px rgba(15,23,42,.05),0 4px 16px rgba(15,23,42,.05);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);font-size:15px;line-height:1.55}
a{color:var(--primary);text-decoration:none}
img{max-width:100%}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .4em}
.ic{flex:none;vertical-align:middle}
.wrap{max-width:1240px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)} .center{text-align:center}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:18px}
.empty{color:var(--muted);padding:12px 0}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:8px;padding:10px 18px;font:600 14px/1.2 inherit;cursor:pointer;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-d)}
.btn-orange{background:var(--orange);color:#fff}.btn-orange:hover{background:var(--orange-d)}
.btn-success{background:var(--green);color:#fff}.btn-success:disabled{opacity:.7;cursor:default}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)}.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn-ghost-dark{background:#fff;color:var(--ink-2);border:1px solid var(--line)}.btn-ghost-dark:hover{border-color:var(--primary);color:var(--primary)}
.btn-lg{padding:14px 24px;font-size:15px}.btn-sm{padding:7px 12px;font-size:13px}.btn-block{width:100%}
.link-plain{color:var(--ink);font-weight:500}

/* alerts */
.alert{padding:11px 14px;border-radius:8px;margin:12px 0;font-size:14px;border:1px solid}
.alert-success{background:#f0fdf4;border-color:#bbf7d0;color:#166534}
.alert-error{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.alert-info{background:#eff6ff;border-color:#bfdbfe;color:#1e40af}
.alert.sm{font-size:12.5px;padding:8px 10px;margin:6px 0 0}

/* brand */
.brand{display:flex;align-items:center;gap:10px;color:var(--navy)}
.brand b{display:block;font-size:20px;font-weight:800;letter-spacing:-.3px}
.brand small{display:block;font-size:10.5px;color:var(--muted);margin-top:-3px}
.brand-mark{width:36px;height:36px;border-radius:9px;background:var(--navy);color:#fff;display:grid;place-items:center}
.brand.light{color:#fff}.brand.light small{color:#94a3b8}.brand.light .brand-mark{background:var(--primary)}

/* top nav */
.topnav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.topnav-in{display:flex;align-items:center;gap:28px;height:68px}
.mainnav{display:flex;gap:26px}.mainnav a{color:var(--ink);font-weight:500;font-size:14.5px}.mainnav a:hover{color:var(--primary)}
.search{flex:1;max-width:340px;display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:8px;padding:0 12px;background:#fff;color:var(--muted)}
.search input{border:0;outline:0;padding:9px 0;width:100%;font:inherit;font-size:13.5px;background:transparent}
.nav-actions{display:flex;align-items:center;gap:18px;margin-left:auto}
.burger{display:none;background:none;border:0;cursor:pointer;color:inherit;padding:6px}

/* hero */
.hero{background:radial-gradient(1200px 500px at 75% 30%,#1b3f8f 0%,transparent 60%),linear-gradient(180deg,#091634,#0b1d47);color:#fff;overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.05fr 1fr;gap:20px;padding-top:34px;padding-bottom:26px;align-items:center}
.pill{display:inline-flex;align-items:center;gap:6px;background:rgba(37,99,235,.35);border:1px solid rgba(147,197,253,.4);color:#dbeafe;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600}
.hero h1{font-size:46px;font-weight:800;margin:16px 0 4px;letter-spacing:-1px;line-height:1.08}
.hero h2{font-size:30px;font-weight:800;color:#60a5fa;margin:0 0 14px}
.hero h2 em{font-style:normal;color:#93c5fd}
.hero p{color:#cbd5e1;max-width:520px;margin:0 0 22px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:30px;margin-top:30px;flex-wrap:wrap}
.hero-stats>div{display:grid;grid-template-columns:auto 1fr;column-gap:10px;align-items:center;color:#60a5fa}
.hero-stats .ic{grid-row:span 2}.hero-stats .star{color:#fbbf24}
.hero-stats b{color:#fff;font-size:22px;line-height:1}.hero-stats span{color:#cbd5e1;font-size:12.5px}
.hero-art{position:relative;min-height:330px;display:flex;align-items:center;justify-content:center}
.hero-photo{max-height:340px;object-fit:contain;filter:drop-shadow(0 20px 40px rgba(0,0,0,.4))}
.rack{width:190px;margin-left:-60px;padding:12px;border-radius:10px;background:linear-gradient(#1e293b,#0f172a);border:1px solid #334155;box-shadow:0 30px 60px rgba(0,0,0,.45),0 0 80px rgba(37,99,235,.35)}
.rack .u{height:34px;margin:6px 0;border-radius:4px;background:linear-gradient(90deg,#0b1220,#1e293b);border:1px solid #334155;display:flex;align-items:center;gap:6px;padding:0 10px}
.rack .u i{width:6px;height:6px;border-radius:50%;background:#22c55e;box-shadow:0 0 6px #22c55e;animation:blink 2.4s infinite}
.rack .u i:nth-child(2){background:#3b82f6;box-shadow:0 0 6px #3b82f6;animation-delay:.6s}
.rack .u i:nth-child(3){background:#f59e0b;box-shadow:0 0 6px #f59e0b;animation-delay:1.2s}
.rack .u span{flex:1;height:4px;margin-left:10px;border-radius:2px;background:repeating-linear-gradient(90deg,#334155 0 6px,transparent 6px 9px)}
@keyframes blink{50%{opacity:.25}}
.hand{position:absolute;left:0;top:24px;font:600 22px/1.25 "Segoe Script","Brush Script MT",cursive;color:#e2e8f0;transform:rotate(-8deg);margin:0}
.tech-chips{position:absolute;right:125px;top:30px;display:flex;flex-direction:column;gap:8px}
.tech-chips span{display:flex;align-items:center;gap:10px;background:rgba(10,24,56,.75);border:1px solid rgba(96,165,250,.45);border-radius:10px;padding:10px 14px;font-weight:700;font-size:15px;backdrop-filter:blur(4px);color:#fff}
.tech-chips .ic{color:#60a5fa}
.hero-words{position:absolute;right:0;top:12px;list-style:none;margin:0;padding:0;font:600 19px/1.75 "Segoe Script","Brush Script MT",cursive;color:#bfdbfe;transform:rotate(-4deg)}

/* sections */
.block{padding-top:26px;padding-bottom:6px}
.sec-title{font-size:23px;font-weight:800;margin:0}
.sec-sub{color:var(--muted);margin:2px 0 14px;font-size:14px}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px}
.more{font-weight:600;font-size:13.5px;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;margin-bottom:14px}
.page-title{font-size:24px;font-weight:800;margin:4px 0 14px}

.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cat-card{--c:#2563eb;display:flex;align-items:flex-start;gap:18px;background:#fff;border:1px solid #eef2f7;border-radius:16px;padding:20px;color:var(--ink);
  box-shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.05);transition:transform .15s,box-shadow .15s,border-color .15s}
.cat-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--c) 35%,#fff);box-shadow:0 14px 32px rgba(15,23,42,.10)}
.cat-ic{width:84px;height:84px;flex:none;border-radius:16px;display:grid;place-items:center;color:var(--c);
  background:linear-gradient(145deg,color-mix(in srgb,var(--c) 16%,#fff),color-mix(in srgb,var(--c) 8%,#fff))}
.cat-ic .ic{stroke-width:2.1}
.cat-ic img{width:64%;height:64%;object-fit:contain}
.cat-ic.has-img{background:none;width:84px;height:92px;border-radius:18px}
.cat-ic.has-img img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 4px 10px rgba(15,23,42,.10))}
.cat-card:hover .cat-ic.has-img img{transform:scale(1.04);transition:transform .15s}
.cat-body{flex:1;min-width:0;display:flex;flex-direction:column;align-self:stretch}
.cat-body b{display:block;font-size:18px;font-weight:800;color:#0b1b4d;line-height:1.25;letter-spacing:-.2px}
.cat-body small{display:block;color:#475569;font-size:14.5px;line-height:1.45;margin-top:6px}
.cat-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:auto;padding-top:12px}
.cat-foot em{font-style:normal;color:var(--primary);font-size:15px;font-weight:500}
.cat-arrow{width:40px;height:40px;flex:none;border-radius:50%;display:grid;place-items:center;color:var(--primary);background:#eaf2ff;transition:.15s}
.cat-card:hover .cat-arrow{background:var(--primary);color:#fff}

.roadmap{display:flex;align-items:stretch;gap:8px}
.road-step{flex:1;border-radius:10px;padding:14px 8px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:3px;min-width:0}
.road-step b{font-size:14px;color:var(--ink)}.road-step small{font-size:11.5px;color:var(--ink-2)}
.road-step.white{background:#fff;border:1px solid var(--line);color:var(--primary)}
.road-arrow{display:grid;place-items:center;color:var(--ink-2)}

.course-grid{display:grid;gap:14px}.course-grid.six{grid-template-columns:repeat(6,1fr)}.course-grid.four{grid-template-columns:repeat(4,1fr)}
.ccard{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;color:var(--ink);display:flex;flex-direction:column;transition:.15s}
.ccard:hover{box-shadow:0 10px 24px rgba(15,23,42,.1);transform:translateY(-2px)}
.ccard-thumb{position:relative;height:96px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--c),color-mix(in srgb,var(--c) 55%,#0a1838))}
.ccard-thumb.has-img{height:120px;background:linear-gradient(145deg,color-mix(in srgb,var(--c) 14%,#fff),color-mix(in srgb,var(--c) 5%,#fff))}
.ccard-thumb.has-img img{height:92px;width:auto;max-width:80%;object-fit:contain;filter:drop-shadow(0 4px 10px rgba(15,23,42,.12));transition:transform .15s}
.ccard:hover .ccard-thumb.has-img img{transform:scale(1.05)}
.badge{z-index:1;position:absolute;left:8px;top:8px;font-size:11px;font-weight:700;padding:2px 8px;border-radius:5px;color:#fff}
.badge.hot{background:#ef4444}.badge.new{background:#22c55e}.badge.best{background:#f97316}.badge.cloud{background:#f59e0b;color:#1f2937}
.ccard-body{padding:10px 12px 12px;display:flex;flex-direction:column;gap:3px;flex:1}
.ccard-body>b{font-size:14px}.ccard-body>small{color:var(--muted);font-size:12px}
.meta{display:flex;gap:12px;color:var(--muted);font-size:12px;margin-top:6px}.meta span{display:flex;align-items:center;gap:4px}
.rating{font-size:12.5px;font-weight:600;color:#f59e0b;display:flex;align-items:center;gap:4px}.rating small{color:var(--muted);font-weight:400}
.price-row{display:flex;align-items:flex-end;justify-content:space-between;margin-top:auto;padding-top:8px;gap:6px}
.price{color:var(--primary);font-size:15px;display:block}.price-row s{color:var(--muted);font-size:12px}

.careers{display:grid;grid-template-columns:1fr 300px;gap:24px;align-items:start}
.career-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.career{display:flex;gap:12px;align-items:center;padding:16px;border-radius:10px;background:color-mix(in srgb,var(--c) 12%,#fff);border:1px solid color-mix(in srgb,var(--c) 25%,#fff)}
.career>span{width:44px;height:44px;border-radius:9px;display:grid;place-items:center;background:var(--c);color:#fff;flex:none}
.career b{display:block;font-size:14px}.career small{font-weight:700;color:var(--ink-2)}
.testimonial{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.testimonial p{margin:0 0 14px;font-size:14.5px}
.testimonial footer{display:flex;gap:12px;align-items:center}.testimonial small{display:block;color:var(--muted)}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:700;font-size:13px;flex:none}
.partners{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px}
.partners span{background:#fff;border:1px solid var(--line);border-radius:10px;height:62px;display:grid;place-items:center;font-weight:800;font-size:19px;letter-spacing:-.3px}

.cta-band{background:linear-gradient(90deg,#0a1838,#13306e);color:#fff;margin-top:34px}
.cta-in{display:flex;align-items:center;gap:22px;padding-top:26px;padding-bottom:26px;flex-wrap:wrap}
.cta-ic{color:#60a5fa}.cta-in h3{font-size:21px;margin:0 0 4px}.cta-in p{margin:0;color:#cbd5e1;max-width:440px;font-size:14px}
.cta-feats{display:flex;gap:22px;list-style:none;margin:0 0 0 auto;padding:0;color:#cbd5e1;font-size:14px}.cta-feats li{display:flex;gap:8px;align-items:center}
.footer{background:#071029;color:#94a3b8;padding:30px 0 16px;font-size:14px}
.footer-in{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.footer h4{color:#fff;margin-bottom:10px}
.footer a,.footer span{display:block;color:#94a3b8;margin:4px 0}.footer a.brand{display:flex;color:#fff;margin-bottom:10px}.footer .brand span{margin:0;color:inherit}.footer .brand small{color:#94a3b8}.copy{border-top:1px solid #1e293b;margin-top:20px;padding-top:14px;font-size:12.5px}

/* auth */
.auth-wrap{min-height:calc(100vh - 260px);display:grid;place-items:center;padding:40px 16px}
.auth{width:100%;max-width:420px}.auth h1{font-size:24px}
label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin:12px 0}
input,select,textarea{display:block;width:100%;margin-top:6px;padding:10px 12px;border:1px solid #cbd5e1;border-radius:8px;font:inherit;font-size:14px;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid #bfdbfe;border-color:var(--primary)}
input:disabled{background:#f1f5f9}
.filters{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap}.filters input,.filters select{margin:0;width:auto;min-width:220px}
.narrow{max-width:860px}
.prose{font-size:15px}.prose p{margin:0 0 .8em}

/* timeline */
.timeline{list-style:none;padding:0;margin:0;position:relative}
.timeline:before{content:"";position:absolute;left:17px;top:10px;bottom:10px;width:2px;background:var(--line)}
.timeline li{display:flex;gap:16px;align-items:flex-start;position:relative}
.tl-dot{width:36px;height:36px;border-radius:50%;color:#fff;display:grid;place-items:center;font-weight:700;flex:none;margin-top:14px;z-index:1}
.tl-card{flex:1;display:flex;align-items:center;gap:14px}.tl-card small{display:block;color:var(--muted)}.tl-card .more{margin:0 0 0 auto}
.tl-card.col{flex-direction:column;align-items:stretch}.tl-h{display:flex;gap:12px;align-items:center}
.tl-course{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:8px 10px;border-radius:8px;background:#f8fafc;color:var(--ink);font-size:14px}
.tl-course:hover{background:var(--primary-50)}

/* ============ student app shell ============ */
body.app{display:flex;min-height:100vh}
.sidebar{width:240px;background:linear-gradient(180deg,#0b1a3d,#0a1633);color:#cbd5e1;padding:18px 12px;position:sticky;top:0;height:100vh;overflow-y:auto;flex:none;z-index:60}
.sidebar .brand{padding:0 8px 16px}
.sidebar nav a,.sidebar .logout{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:9px;color:#cbd5e1;font-size:14px;font-weight:500;margin:2px 0;width:100%;background:none;border:0;font-family:inherit;cursor:pointer;text-align:left}
.sidebar nav a:hover,.sidebar .logout:hover{background:rgba(255,255,255,.06);color:#fff}
.sidebar nav a.active{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(37,99,235,.35)}
.nav-group{font-size:10.5px;font-weight:700;letter-spacing:.8px;color:#64748b;padding:14px 12px 4px}
.count{margin-left:auto;font-style:normal;background:#ef4444;color:#fff;font-size:11px;font-weight:700;border-radius:999px;min-width:20px;height:20px;display:grid;place-items:center;padding:0 6px}
.app-main{flex:1;min-width:0;display:flex;flex-direction:column}
.app-top{height:62px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:16px;padding:0 24px;position:sticky;top:0;z-index:40}
.app-top .search{max-width:420px}
.top-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.bell{position:relative;color:var(--ink-2);width:36px;height:36px;border-radius:50%;background:#f1f5f9;display:grid;place-items:center}
.bell i{position:absolute;top:7px;right:8px;width:8px;height:8px;border-radius:50%;background:#ef4444;border:2px solid #fff}
.who{text-align:right;line-height:1.2}.who b{display:block;font-size:13.5px}.who small{color:var(--muted);font-size:12px}
.app-content{padding:22px 24px 40px;max-width:1300px;width:100%}
.app-main>.alert{margin:14px 24px 0}

/* dashboard */
.welcome{background:linear-gradient(120deg,#1d4ed8,#2563eb 50%,#3b82f6);color:#fff;border-radius:16px;padding:22px 24px;margin-bottom:18px;box-shadow:0 10px 30px rgba(37,99,235,.25)}
.welcome-top{display:flex;justify-content:space-between;gap:16px}
.welcome h1{font-size:26px;font-weight:800;margin:0 0 4px}.welcome p{margin:0;color:#dbeafe}
.date{color:#dbeafe;font-size:13px;white-space:nowrap}
.welcome-stats{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:12px;margin-top:18px}
.welcome-stats>div{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:12px 16px}
.welcome-stats b{display:flex;align-items:center;gap:6px;font-size:20px}.welcome-stats small{color:#dbeafe;font-size:12.5px}
.welcome-stats .lv{display:flex;gap:12px;align-items:center}.welcome-stats .lv>div{flex:1}
.crown{color:#fbbf24}
.bar{height:8px;background:#e5e7eb;border-radius:999px;overflow:hidden;flex:1}
.bar i{display:block;height:100%;background:var(--primary);border-radius:999px;transition:width .4s}
.bar.light{background:rgba(255,255,255,.25);margin:4px 0}.bar.light i{background:#fbbf24}
.bar-row{display:flex;align-items:center;gap:10px;margin:8px 0 4px}.bar-row b{font-size:13.5px;min-width:38px;text-align:right}
.bar-row.sm{width:180px;margin:0}
.dash-row{display:grid;grid-template-columns:1.55fr 1fr;gap:18px}
.dash-row>.card{margin-bottom:18px}
.card h3{font-size:17px}
.card-head{display:flex;justify-content:space-between;align-items:baseline}.card-head .more{margin:0}
.resume h3{border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:14px}
.resume-in{display:flex;gap:18px}
.thumb{width:130px;height:120px;border-radius:10px;flex:none;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--c),#0a1838)}
.resume-body{flex:1;display:flex;flex-direction:column;gap:2px}.resume-body>b{font-size:16px}.resume-body>span{color:var(--ink-2);font-size:14px}
.resume-body .btn{align-self:flex-end;margin-top:10px}
.week-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;text-align:center;margin:14px 0}
.wd{display:flex;flex-direction:column;align-items:center;gap:6px;padding:8px 0;border-radius:8px}
.wd small{color:var(--muted);font-size:12px}.wd b{font-size:14px}.wd.we b{color:var(--primary)}
.wd.today{background:var(--primary-50);outline:1px solid #bfdbfe}
.dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:#d1d5db}
.dot.done{background:var(--green)}.dot.doing{background:var(--primary)}
.legend{display:flex;gap:18px;justify-content:center;font-size:13px;color:var(--ink-2)}.legend span{display:flex;gap:6px;align-items:center}
.mc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:12px}
.mc-grid.wide{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.mcard{border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;background:#fff}
.mcard-thumb{height:100px;display:grid;place-items:center;color:#fff;background:var(--c)}
.mcard-body{padding:12px;display:flex;flex-direction:column;gap:2px;flex:1}.mcard-body>b{font-size:14.5px}.mcard-body>small{font-size:12.5px;color:var(--muted)}
.mcard-body .btn{margin-top:auto}.mcard-body .muted{margin-bottom:10px}
.sg{display:flex;gap:12px;align-items:center;padding:10px;border-radius:9px;color:var(--ink)}
.sg:hover{background:#f8fafc}.sg small{display:block;color:var(--muted);font-size:12.5px}
.sg-ic{width:42px;height:42px;border-radius:9px;display:grid;place-items:center;color:#fff;background:var(--c);flex:none}

/* course page */
.course-head .tag{display:inline-flex;gap:4px;align-items:center;background:#dcfce7;color:#166534;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px}
.course-head h1{font-size:26px;font-weight:800;margin:10px 0 2px}.course-head>p{margin:0}
.player-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px;margin-top:16px}
.player{position:relative;aspect-ratio:16/9;background:#0f172a;border-radius:10px;overflow:hidden;display:grid;place-items:center}
.player video,.player iframe{width:100%;height:100%;border:0;background:#000}
.player-msg{color:#cbd5e1;text-align:center;padding:20px}.player-msg p{margin:10px 0 14px}
.now-playing{position:absolute;left:10px;bottom:52px;background:rgba(255,255,255,.92);color:var(--ink);font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;display:flex;gap:6px;align-items:center;pointer-events:none;max-width:70%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.player:has(.player-msg) .now-playing{bottom:10px}
.player-bar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:10px}
.lesson-panel{position:relative;min-height:320px}
.lp-inner{position:absolute;inset:0;border:1px solid var(--line);border-radius:10px;display:flex;flex-direction:column;overflow:hidden;background:#fff}
.lp-head{padding:12px 14px;border-bottom:1px solid var(--line);background:#f8fafc}
.lp-head b{display:block}.lp-head .bar-row{margin-bottom:0}.lp-head form{margin-top:8px}
.lp-list{overflow-y:auto;flex:1}
.lp-chapter{padding:9px 14px;font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.4px;background:#f8fafc;border-bottom:1px solid var(--line);position:sticky;top:0}
.lp-item{display:flex;gap:10px;align-items:center;padding:11px 14px;border-bottom:1px solid #f1f5f9;color:var(--ink);font-size:13.5px}
.lp-item:hover{background:#f8fafc}
.lp-item.current{background:var(--primary-50);box-shadow:inset 3px 0 0 var(--primary)}
.lp-st{width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:#e2e8f0;color:var(--ink-2);flex:none}
.lp-item.current .lp-st{background:var(--primary);color:#fff}
.lp-item.done .lp-st{background:var(--green);color:#fff}
.lp-t{flex:1;min-width:0;display:flex;flex-direction:column}.lp-t b{font-size:12px;color:var(--primary)}
.lp-t span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lp-d{color:var(--muted);font-size:12px;display:flex;flex-direction:column;align-items:flex-end}.lp-d em{font-style:normal;color:var(--green);font-weight:600;font-size:11px}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:4px 0 16px}
.tabs button{background:none;border:0;padding:10px 14px;font:600 14px inherit;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button.active{color:var(--primary);border-color:var(--primary)}
.tab-pane{display:none}.tab-pane.active{display:block}
.checks{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:8px 20px}.checks li{display:flex;gap:8px;align-items:flex-start}.checks .ic{color:var(--green);margin-top:4px}
.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.info-grid small{display:block;color:var(--muted)}
.dots{margin:0;padding-left:20px}

.table{width:100%;border-collapse:collapse}.table th,.table td{padding:10px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.table th{font-size:12.5px;color:var(--muted);text-transform:uppercase}.table tr.me{background:var(--primary-50)}
.notif.unread{border-left:4px solid var(--primary)}.notif b{display:block}.notif p{margin:8px 0 0}
.form h3{margin-bottom:4px}

/* responsive */
@media (max-width:1200px){.course-grid.six{grid-template-columns:repeat(3,1fr)}.cat-grid{grid-template-columns:repeat(2,1fr)}.cat-ic{width:70px;height:70px}.cat-ic.has-img{width:70px;height:77px}
  .player-grid{grid-template-columns:minmax(0,1fr) 300px}}
@media (max-width:980px){
  .hero-in,.careers,.dash-row,.player-grid{grid-template-columns:1fr}
  .hero-art{display:none}.roadmap{flex-wrap:wrap}.road-arrow{display:none}.road-step{flex:1 1 30%}
  .career-grid{grid-template-columns:repeat(2,1fr)}.course-grid.four{grid-template-columns:repeat(2,1fr)}
  .mainnav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:12px 20px;border-bottom:1px solid var(--line)}
  .mainnav.open{display:flex}.burger{display:block}.topnav .search{display:none}
  .sidebar{position:fixed;left:-260px;transition:left .2s}.sidebar.open{left:0}
  .welcome-stats{grid-template-columns:1fr 1fr}.lesson-panel{min-height:0}.lp-inner{position:static;max-height:440px}
  .info-grid{grid-template-columns:1fr 1fr}.cta-feats{margin:0}
}
@media (max-width:640px){
  .hero h1{font-size:34px}.hero h2{font-size:22px}
  .cat-grid,.course-grid.six,.course-grid.four,.mc-grid,.career-grid{grid-template-columns:1fr}
  .resume-in{flex-direction:column}.thumb{width:100%}.checks{grid-template-columns:1fr}.who{display:none}
  .app-content{padding:16px}.app-top{padding:0 12px}.footer-in{grid-template-columns:1fr}.nav-actions .link-plain{display:none}
}

/* video protection */
.player video{-webkit-user-select:none;user-select:none}
.wm{position:absolute;z-index:3;pointer-events:none;color:rgba(255,255,255,.38);font:600 13px/1.2 ui-monospace,Consolas,monospace;text-shadow:0 0 2px rgba(0,0,0,.6);white-space:nowrap;transition:left 1.5s,top 1.5s;user-select:none}
.fs-btn{position:absolute;right:10px;top:10px;z-index:4;width:34px;height:34px;border-radius:8px;border:0;background:rgba(15,23,42,.6);color:#fff;font-size:18px;cursor:pointer;opacity:.7}
.fs-btn:hover{opacity:1}
.player:fullscreen{border-radius:0;aspect-ratio:auto;width:100vw;height:100vh}
.player:fullscreen .now-playing{display:none}

/* ===== Career map (home + /roadmap) ===== */
.cmap{--g:44px;--blue:#1d6fe0;--arrow:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 12'%3E%3Cpath d='M0 0l10 6-10 6z' fill='%231d6fe0'/%3E%3C/svg%3E");
  display:grid;grid-template-columns:220px minmax(170px,1fr) minmax(230px,1.35fr) minmax(170px,1fr) 220px;grid-template-rows:repeat(var(--rows),minmax(74px,auto));
  column-gap:var(--g);row-gap:12px;margin-top:6px;position:relative}
.cmap>*{position:relative}
/* connectors */
.cmap-start::after{content:"";position:absolute;right:calc(var(--g)/-2 - 1px);top:calc(100% / var(--rows) / 2);bottom:calc(100% / var(--rows) / 2);border-left:2.5px solid var(--blue)}
.cmap-track::before,.cmap-track::after,.cmap-cert::after,.cmap-role::after,.role-bubble::after,.cmap-sec::after{content:"";position:absolute;top:50%;height:12px;margin-top:-6px;
  background:var(--arrow) right center/10px 12px no-repeat,linear-gradient(var(--blue),var(--blue)) left center/calc(100% - 8px) 2.5px no-repeat}
.cmap-track::before{left:calc(var(--g)/-2);width:calc(var(--g)/2)}
.cmap-track::after{right:calc(var(--g) * -1 + 2px);width:calc(var(--g) - 2px)}
.cmap-cert::after{right:calc(var(--g)/-2);width:calc(var(--g)/2);background:linear-gradient(var(--blue),var(--blue)) left center/100% 2.5px no-repeat}
.cmap-role::after{left:calc(var(--g)/-2);width:calc(var(--g)/2)}
.cmap-role.merge::before{content:"";position:absolute;left:calc(var(--g)/-2 - 1px);top:25%;bottom:25%;border-left:2.5px solid var(--blue)}
.role-bubble::after{right:calc(var(--g)/-2 - 2px);width:calc(var(--g)/2);background:linear-gradient(var(--blue),var(--blue)) left center/100% 2.5px no-repeat}
.cmap-sec::before{content:"";position:absolute;left:calc(var(--g)/-2 - 1px);top:calc(100% / var(--rows) * 1);bottom:calc(100% / var(--rows) / 2);border-left:2.5px solid var(--blue)}
.cmap-sec::after{left:calc(var(--g)/-2);width:calc(var(--g)/2);top:40%}
/* start column */
.cmap-start{background:linear-gradient(180deg,#0f3b8c,#0a2766);border-radius:14px;color:#fff;padding:18px 14px;display:flex;flex-direction:column;gap:14px;box-shadow:0 10px 24px rgba(10,39,102,.25)}
.cmap-start-head{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:8px 0 4px}
.cmap-start-head .ic{color:#3b82f6;stroke-width:3.5}
.cmap-start-head b{font-size:26px;font-weight:800;line-height:1.15;letter-spacing:.3px;text-transform:uppercase}
.cmap-help{border:1.5px solid rgba(96,165,250,.6);border-radius:12px;padding:12px}
.cmap-help h4{display:flex;align-items:center;gap:10px;margin:0 0 8px;font-size:15px;text-transform:uppercase;line-height:1.25}
.cmap-help ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.cmap-help li{display:flex;gap:8px;font-size:13.5px;line-height:1.35;color:#e2e8f0}
.cmap-help li .ic{flex:none;width:18px;height:18px;padding:2px;border-radius:50%;background:#3b82f6;color:#fff;stroke-width:3.5;margin-top:1px}
/* tracks */
.cmap-track{display:flex;color:#fff;text-decoration:none}
.cmap-track .trk{flex:1;display:flex;align-items:center;gap:14px;padding:0 34px 0 18px;font-weight:700;font-size:15.5px;text-transform:uppercase;letter-spacing:.2px;
  background:linear-gradient(135deg,var(--c,#1d6fe0),#1756c4);clip-path:polygon(0 0,calc(100% - 22px) 0,100% 50%,calc(100% - 22px) 100%,0 100%);border-radius:10px 0 0 10px;transition:filter .15s}
.cmap-track:hover .trk{filter:brightness(1.08)}
.cmap-track.alt .trk{background:linear-gradient(135deg,#6d28d9,#4f46e5)}
.cmap-track b{line-height:1.2}
/* certs */
.cmap-cert{display:flex;align-items:center;gap:10px;background:#c9f7e3;border-radius:12px;padding:10px 14px;color:#0f172a}
.cmap-cert.alt{background:#dbeafe}
.cert-main{display:flex;align-items:center;gap:12px;flex:1;min-width:0}
.cert-ic{flex:none;width:44px;height:44px;border-radius:10px;background:#fff;display:grid;place-items:center;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.cert-main b{display:block;font-size:15.5px;font-weight:800;line-height:1.2}
.cert-main small{display:block;font-size:13.5px;color:#1e293b}
.cert-next{display:flex;align-items:center;gap:6px;color:var(--blue)}
.cert-next-box{background:#a7f0cf;border-radius:10px;padding:10px 12px;color:#0f172a;font-size:15px}
/* roles */
.cmap-role{display:flex;align-items:center}
.role-bubble{width:100%;min-height:96px;display:flex;align-items:center;justify-content:center;gap:12px;padding:12px 18px;background:#fef9a8;border:2.5px solid var(--blue);border-radius:50%;color:#0f172a;text-align:left}
.role-bubble .ic{flex:none;color:var(--blue)}
.role-bubble b{display:block;font-size:16px;font-weight:800;text-transform:uppercase;line-height:1.2}
.role-bubble small{display:block;font-size:13.5px;color:#334155}
/* security */
.cmap-sec{display:flex;align-items:stretch}
.sec-card{width:100%;background:#fbcaca;border-radius:14px;padding:22px 16px;display:flex;flex-direction:column;align-items:center;text-align:center;box-shadow:0 10px 24px rgba(220,38,38,.12)}
.sec-card>.ic{color:#dc2626;fill:#fee2e2}
.sec-card>b{font-size:24px;font-weight:800;color:#1e3a8a;text-transform:uppercase;margin-top:8px}
.sec-card>small{font-size:15px;color:#1e3a8a;margin-bottom:12px}
.sec-card ul{list-style:none;margin:0;padding:0;display:grid;gap:12px;align-self:stretch;text-align:left}
.sec-card li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:#0f172a}
.sec-card li .ic{flex:none;width:24px;height:24px;padding:4px;border-radius:50%;background:#1e40af;color:#fff;stroke-width:3.5}

@media (max-width:1180px){
  .cmap{display:flex;flex-direction:column;gap:10px}
  .cmap>*::before,.cmap>*::after,.role-bubble::after{display:none}
  .cmap-start{flex-direction:row;flex-wrap:wrap;align-items:center}.cmap-start-head{flex-direction:row}.cmap-start-head b{font-size:20px}
  .cmap-track{margin-top:8px}.cmap-track .trk{clip-path:none;border-radius:10px;padding:14px 18px}
  .role-bubble{border-radius:999px;min-height:0}
}

/* lesson attachments */
.tabs button{display:inline-flex;align-items:center;gap:6px}
.tab-count{background:#e2e8f0;color:#334155;border-radius:999px;font-size:11.5px;padding:0 7px;line-height:18px}
.tabs button.active .tab-count{background:var(--primary);color:#fff}
.att-list{padding:6px 18px}
.att{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid #f1f5f9}
.att:last-child{border-bottom:0}
.att-ic{--c:#64748b;width:48px;height:56px;flex:none;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  color:var(--c);background:color-mix(in srgb,var(--c) 10%,#fff);border:1px solid color-mix(in srgb,var(--c) 25%,#fff)}
.att-ic b{font-size:10px;letter-spacing:.5px}
.att-info{flex:1;min-width:0}.att-info b{display:block;font-size:15px}
.att-info small{display:block;color:var(--muted);font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.att-actions{display:flex;gap:8px;flex:none}
.att-lock{color:var(--muted)}
.ic.flip{transform:rotate(180deg)}
@media (max-width:640px){.att{flex-wrap:wrap}.att-actions{width:100%;justify-content:flex-end}}
.att-empty{display:flex;flex-direction:column;align-items:center;gap:6px;padding:28px 12px;color:#94a3b8;text-align:center}
.att-empty p{margin:0;font-size:14px}