:root{--bg:#060607;--panel:#0B0B0D;--text:#F4F4F5;--soft:#D4D4D8;--muted:#A1A1AA;--dim:#71717A;--faint:#52525B;--line:rgba(255,255,255,.07);--line2:rgba(255,255,255,.1);--or:#FF6A00;--or2:#FF8A3D;--ok:#FFB07A;--err:#FCA5A5}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font-family:'Geist',system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit}
svg{display:block}
:focus-visible{outline:2px solid var(--or);outline-offset:3px}
.mono{font-family:'Geist Mono',ui-monospace,monospace}
.wrap{width:min(1120px,100% - 32px);margin-inline:auto}
.glow{position:fixed;left:50%;top:-520px;width:1300px;height:900px;border-radius:50%;background:radial-gradient(closest-side,rgba(255,106,0,.22),rgba(255,106,0,.06) 50%,transparent 72%);transform:translateX(-50%);pointer-events:none;z-index:0}
.page{position:relative;z-index:1}
.eyebrow{font:12px 'Geist Mono',monospace;letter-spacing:.14em;color:var(--or2)}
.muted{color:var(--muted)}.dim{color:var(--dim)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 20px;font:500 14px/1 'Geist',sans-serif;border-radius:11px;border:0;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s,opacity .2s}
.btn:active{transform:translateY(1px)}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn-or{color:var(--bg);background:var(--or);box-shadow:inset 0 0 0 1px rgba(255,140,60,.6),0 10px 34px -8px rgba(255,106,0,.6)}
.btn-or:hover{box-shadow:inset 0 0 0 1px rgba(255,160,90,.8),0 14px 44px -8px rgba(255,106,0,.8)}
.btn-ghost{color:var(--text);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12)}
.btn-ghost:hover{background:rgba(255,255,255,.09)}
.btn-white{color:#111;background:#F4F4F5}
.btn-white:hover{background:#fff}

/* top bar */
.bar{position:sticky;top:12px;z-index:20;margin:16px auto 0;padding:8px 8px 8px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px;background:rgba(20,20,22,.6);border:1px solid var(--line);border-radius:14px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.logo{display:flex;align-items:center;gap:10px;font-weight:600;font-size:15px;letter-spacing:.14em}
.bar-r{display:flex;align-items:center;gap:8px}
.pts-pill{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:10px;background:rgba(255,106,0,.08);border:1px solid rgba(255,106,0,.25);font:500 13px 'Geist Mono',monospace;color:var(--or2)}
.me{display:flex;align-items:center;gap:8px;padding:4px 10px 4px 4px;border-radius:10px;border:1px solid var(--line);font-size:13px;color:var(--soft);max-width:220px}
.me img,.me .av{width:26px;height:26px;border-radius:8px;flex-shrink:0;object-fit:cover;background:#1c1c20;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--or2)}
.me span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.logout{padding:9px 12px;font-size:13px;color:var(--muted);background:none;border:0;cursor:pointer;border-radius:9px}
.logout:hover{color:var(--text);background:rgba(255,255,255,.05)}

.card{position:relative;padding:28px;border-radius:18px;background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.015));border:1px solid var(--line)}
.h1{margin:0;font-weight:600;font-size:clamp(32px,4.4vw,48px);line-height:1.05;letter-spacing:-.035em}
.h3{margin:0;font-weight:600;font-size:20px;letter-spacing:-.02em}

/* progress */
.meter{height:6px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.meter i{display:block;height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,var(--or2),var(--or));box-shadow:0 0 12px rgba(255,106,0,.6);transition:width .6s cubic-bezier(.2,.7,.2,1)}

/* lesson rows */
.mod{display:flex;flex-direction:column;gap:8px}
.mod-h{display:flex;justify-content:space-between;align-items:baseline;padding:0 4px 6px;font-size:13px;color:var(--dim)}
.mod-h b{font:500 12px 'Geist Mono',monospace;letter-spacing:.12em;color:var(--muted)}
.row{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:14px;background:rgba(255,255,255,.025);border:1px solid var(--line);transition:background .2s,border-color .2s}
a.row:hover{background:rgba(255,255,255,.05);border-color:var(--line2)}
.row .ic{width:30px;height:30px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.row.done .ic{background:rgba(255,106,0,.14)}
.row.open .ic{border:2px solid var(--or);box-shadow:0 0 16px rgba(255,106,0,.35)}
.row.locked{opacity:.5}
.row.locked .ic{border:1px solid var(--line2)}
.row .t{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}
.row .t b{font-weight:500;font-size:15px}
.row .t small{font-size:13px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row .p{font:12px 'Geist Mono',monospace;color:var(--or2);white-space:nowrap}
.row.locked .p{color:var(--faint)}
.row.cur{border-color:rgba(255,106,0,.45);background:rgba(255,106,0,.06)}

/* achievements */
.ach-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.ach{padding:18px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.02);display:flex;flex-direction:column;gap:10px}
.ach .medal{width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.04);border:1px solid var(--line2)}
.ach b{font-weight:500;font-size:14px}
.ach small{font-size:12.5px;line-height:1.45;color:var(--dim)}
.ach .ap{font:11px 'Geist Mono',monospace;color:var(--faint)}
.ach.on{border-color:rgba(255,106,0,.35);background:linear-gradient(180deg,rgba(255,106,0,.1),rgba(255,106,0,.02))}
.ach.on .medal{background:rgba(255,106,0,.16);border-color:rgba(255,106,0,.5);box-shadow:0 0 20px rgba(255,106,0,.35)}
.ach.on .ap{color:var(--or2)}
.ach:not(.on){opacity:.55}

/* toast */
.toasts{position:fixed;right:16px;bottom:16px;z-index:50;display:flex;flex-direction:column;gap:10px;max-width:calc(100% - 32px)}
.toast{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:14px;background:rgba(24,20,17,.92);border:1px solid rgba(255,106,0,.45);box-shadow:0 20px 50px -10px rgba(255,106,0,.45);backdrop-filter:blur(12px);animation:tin .5s cubic-bezier(.2,.8,.2,1) both;font-size:14px}
.toast b{display:block;font-weight:600}
.toast small{color:var(--muted)}
@keyframes tin{from{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:none}}

/* countdown */
.cd-g{display:flex;gap:8px}
.cd-u{min-width:70px;padding:12px 8px 10px;border-radius:12px;background:rgba(255,255,255,.03);border:1px solid var(--line2);display:flex;flex-direction:column;align-items:center;gap:5px}
.cd-u b{font:600 30px/1 'Geist Mono',monospace;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.cd-u small{font:10px 'Geist Mono',monospace;letter-spacing:.1em;color:var(--dim)}
.cd-u.s b{color:var(--or2)}

.spinner{width:22px;height:22px;border-radius:50%;border:2px solid rgba(255,106,0,.2);border-top-color:var(--or);animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.center-load{min-height:60vh;display:flex;align-items:center;justify-content:center}
[hidden]{display:none!important}

@media (max-width:640px){
  .bar{padding-left:14px}
  .me span,.logout-t{display:none}
  .me{padding:4px}
  .card{padding:20px}
  .row{padding:14px}
  .row .t small{white-space:normal}
  .cd-u{min-width:0;flex:1}
  .cd-u b{font-size:24px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}