:root{color-scheme:light;--ink:#172525;--muted:#667675;--line:#d9e2df;--paper:#f4f6f3;--panel:#fff;--pine:#142a2b;--pine-2:#28504d;--mint:#b8e1d1;--red:#b84545;--shadow:0 12px 34px rgba(28,54,52,.08);font-family:Inter,Manrope,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:15px}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink)}button,input,textarea,select{font:inherit}button{min-height:44px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);padding:0 14px;cursor:pointer}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(40,104,96,.28);outline-offset:2px}.hidden{display:none!important}.login-shell{min-height:100dvh;display:grid;place-items:center;padding:24px;background:linear-gradient(145deg,#102223,#244541)}.login-card{width:min(420px,100%);padding:32px;border-radius:10px;background:var(--panel);box-shadow:0 25px 70px rgba(0,0,0,.25)}.brand-mark{display:grid;place-items:center;width:54px;height:54px;border-radius:8px;background:var(--pine);color:var(--mint);font-weight:800;letter-spacing:-1px}.brand-mark.small{width:36px;height:36px;font-size:12px}.eyebrow{margin:16px 0 4px;color:var(--pine-2);font-size:12px;font-weight:800;letter-spacing:.11em;text-transform:uppercase}h1{margin:0;font-size:28px;line-height:34px;letter-spacing:-.03em}h2{font-size:19px}.muted{color:var(--muted)}.stack{display:grid;gap:16px;margin-top:24px}.stack.compact{gap:10px;margin-top:12px}label{display:grid;gap:7px;font-size:13px;font-weight:700}input,textarea,select{width:100%;border:1px solid #c9d4d1;border-radius:7px;background:#fff;padding:11px 12px;color:var(--ink)}textarea{resize:vertical}.primary{border-color:var(--pine);background:var(--pine);color:#fff;font-weight:750}.danger{border-color:var(--red)}.primary.danger{background:var(--red)}.error,.warning{padding:10px 12px;border-radius:7px;background:#f9e8e6;color:#852f2f}.app{min-height:100dvh}.topbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 max(18px,env(safe-area-inset-left));background:rgba(244,246,243,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.brand-button{display:flex;align-items:center;gap:10px;border:0;background:transparent;font-weight:800}.top-actions{display:flex;align-items:center;gap:8px}.icon-button{width:44px;padding:0;font-size:19px}.chip{display:inline-flex;align-items:center;min-height:30px;padding:0 9px;border-radius:999px;background:#e4ebe8;color:#39504e;font-size:12px;font-weight:750}.chip.offline{background:#f4dfdc;color:#8d3833}.page{width:min(1120px,100%);margin:auto;padding:32px 20px 64px}.page.narrow{width:min(700px,100%)}.page-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.panel{border:1px solid var(--line);border-radius:10px;background:var(--panel);padding:20px;box-shadow:var(--shadow)}.notice{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px;padding:16px;border:1px solid #dcc889;border-radius:8px;background:#fff9e7}.notice p{margin:5px 0 0;color:var(--muted)}.lecture-list{display:grid;gap:10px}.lecture-card{display:grid;grid-template-columns:1fr auto;gap:12px;padding:17px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}.lecture-card:hover{border-color:#9bb1ab}.lecture-card h2{margin:0 0 5px;font-size:17px}.lecture-card p{margin:0;color:var(--muted);font-size:13px}.lecture-card time{font-size:12px;color:var(--muted)}.empty{padding:38px;border:1px dashed #b7c4c0;border-radius:8px;text-align:center;color:var(--muted)}.back-button{margin-bottom:22px;border:0;background:transparent;padding:0}.recording-checks{display:grid;gap:7px;padding:14px;border-radius:7px;background:#eef3f0}.recording-checks p{margin:0;font-weight:800}.recording-page{min-height:calc(100dvh - 64px);padding:0 20px 60px}.recording-header{position:sticky;top:64px;z-index:4;display:flex;align-items:center;justify-content:space-between;max-width:1120px;margin:0 auto 20px;padding:15px 0;background:var(--paper)}.recording-header>div{display:flex;align-items:center;gap:10px}.record-dot{width:11px;height:11px;border-radius:50%;background:#d53d3d;box-shadow:0 0 0 5px rgba(213,61,61,.12)}.recording-header time{font-variant-numeric:tabular-nums;font-size:22px;font-weight:800}.recording-grid{display:grid;grid-template-columns:minmax(300px,.8fr) minmax(360px,1.2fr);gap:18px;max-width:1120px;margin:auto}.energy-state{display:grid;gap:4px;padding-bottom:18px;border-bottom:1px solid var(--line)}.energy-state span{font-size:12px;color:var(--pine-2);font-weight:800;text-transform:uppercase}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin:20px 0;background:var(--line)}.stats-grid div{padding:14px;background:#fff}.stats-grid dt{font-size:12px;color:var(--muted)}.stats-grid dd{margin:4px 0 0;font-size:20px;font-weight:800}.upload-line{display:grid;gap:7px;margin-bottom:18px;font-size:13px;color:var(--muted)}.wide{width:100%}.button-row,.attachment-row{display:flex;flex-wrap:wrap;gap:8px}.file-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 13px;border:1px solid var(--line);border-radius:7px;background:#fff;cursor:pointer}.file-button input{position:absolute;width:1px;height:1px;opacity:0}.attachment-row{margin:18px 0}.timeline{display:grid;gap:8px}.timeline-item{display:grid;grid-template-columns:70px 1fr;gap:10px;padding:10px 0;border-top:1px solid var(--line)}.timeline-item time{color:var(--pine-2);font-variant-numeric:tabular-nums;font-size:12px;font-weight:800}.timeline-item p{margin:0;white-space:pre-wrap}.player-panel{margin-bottom:24px}.player-panel audio{width:100%}.player-meta{display:flex;justify-content:space-between;align-items:center;margin-top:10px;color:var(--muted);font-size:13px}.lecture-detail-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:28px}.materials{display:grid;gap:8px}.material{display:block;padding:12px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);text-decoration:none}.material small{display:block;margin-top:4px;color:var(--muted)}.user-list{display:grid;gap:8px;margin-top:18px}.user-row{display:flex;align-items:center;justify-content:space-between;padding:10px;border-top:1px solid var(--line)}.toast{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom));z-index:20;max-width:360px;padding:12px 16px;border-radius:7px;background:var(--pine);color:#fff;box-shadow:var(--shadow)}@media(max-width:760px){.topbar{height:58px}.brand-button>span:last-child{display:none}.page{padding:24px 14px 60px}.page-heading{align-items:start}.recording-header{top:58px}.recording-grid,.lecture-detail-grid{grid-template-columns:1fr}.recording-page{padding:0 12px 50px}.panel{padding:16px}.notice{align-items:start;flex-direction:column}.stats-grid{margin:16px 0}}@media(prefers-color-scheme:dark){:root{color-scheme:dark;--ink:#edf4f1;--muted:#a8b7b3;--line:#344642;--paper:#101817;--panel:#172321;--pine:#b8e1d1;--pine-2:#91c9b6;--mint:#18312d;--shadow:none}button,input,textarea,select,.lecture-card,.material,.file-button{background:#172321;color:var(--ink)}.topbar,.recording-header{background:rgba(16,24,23,.94)}.brand-mark{background:#b8e1d1;color:#142a2b}.primary{background:#3f776d;border-color:#5f988d}.stats-grid div{background:var(--panel)}.recording-checks{background:#1c2c29}.chip{background:#293b37;color:#d2e0dc}}
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