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var(--accent-soft)}.lk-switch:after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #22303b40;transition:left .18s ease}.lk-switch.on{background:var(--accent);box-shadow:none}.lk-switch.on:hover{background:var(--accent-hover)}.lk-switch.on:after{left:21px}.course-progress{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--rule);border-radius:var(--r-dialog);padding:13px 16px}.course-progress.finished{background:var(--sand);border-color:#dbc9ae}.course-progress .text{min-width:0}.course-progress .text b{display:block;font-size:.89rem;font-weight:500;line-height:1.3}.course-progress .text span{font-size:.79rem;color:var(--ink-soft)}.course-progress.finished .text span{color:#6b5b45}.course-progress .percent{margin-left:auto;flex-shrink:0;font-family:Cormorant,serif;font-size:1.5rem;color:var(--accent)}.course-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.course-list li{background:var(--surface);border:1px solid var(--rule);border-radius:var(--r-dialog);overflow:hidden;padding:0}.course-list li.open{border-color:var(--accent-soft)}.course-head{width:100%;text-align:left;display:flex;align-items:flex-start;gap:11px;background:transparent;border:0;box-shadow:none;border-radius:0;padding:13px 16px;min-height:48px}.course-head:hover{background:var(--paper-2);box-shadow:none}.course-head .seq{flex:0 0 auto;font-family:Cormorant,serif;font-size:1.2rem;line-height:1.2;color:var(--accent-soft)}.course-head .seq.done{color:var(--good)}.course-head .text{min-width:0;flex:1}.course-head .title{display:block;font-size:.95rem;font-weight:500;line-height:1.3}.course-head .date{display:block;font-size:.78rem;color:var(--ink-soft);margin-top:2px}.course-head .badge{flex-shrink:0;border-radius:999px;padding:3px 9px;margin-top:2px;font-size:.7rem;background:#2f7a551f;color:var(--good)}.course-head svg{flex-shrink:0;margin-top:3px;color:var(--ink-soft);transition:rotate .2s ease}.course-head svg.flip{rotate:180deg}.course-body{padding:0 16px 15px}.course-body .summary{margin:0 0 11px;font-size:.85rem;color:var(--ink-soft);line-height:1.45}.materials{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:7px}.materials li{padding:0;border:0;background:none}.materials li button,.materials li.locked{width:100%;text-align:left;display:flex;align-items:center;gap:11px;background:var(--paper-2);border:0;box-shadow:none;border-radius:11px;padding:11px 13px;min-height:48px;font-size:.88rem;color:var(--ink)}.materials li button:hover{background:var(--mist);box-shadow:none}.materials li.locked{background:var(--paper);color:var(--ink-mute)}.materials .icon{flex:0 0 30px;height:30px;border-radius:50%;background:var(--mist);color:var(--accent);display:flex;align-items:center;justify-content:center}.materials li.locked .icon{background:#e4e8ed;color:var(--ink-mute)}.materials .title{min-width:0;flex:1}.materials .meta{flex-shrink:0;font-size:.76rem;color:var(--accent-soft)}.course-video{width:100%;border-radius:var(--r-card);margin-top:11px;display:block;background:var(--ink)}.lk-tabs{position:fixed;bottom:0;left:0;right:0;display:flex;background:var(--surface);border-top:1px solid var(--rule);max-width:480px;margin:0 auto;padding-bottom:max(6px,env(safe-area-inset-bottom))}.lk-tabs button{flex:1;border:0;box-shadow:none;border-radius:0;padding:9px 0 8px;min-height:56px;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:.68rem;color:var(--ink-soft)}.lk-tabs button:hover{background:var(--paper-2);box-shadow:none}.lk-tabs button.active{color:var(--accent)}.lk-tabs button.active svg{stroke-width:2}.lk-tabs svg{display:block}.login{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:24px 20px;background:var(--paper)}.login-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--rule);border-radius:var(--r-dialog);padding:26px 24px 22px}.login-card small{display:block;font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:4px}.login-card h1{font-size:1.9rem;line-height:1.1;margin-bottom:10px}.login-card .muted{margin:0 0 18px;line-height:1.5}.login-card label{display:block;font-size:.78rem;color:var(--ink-soft);margin-bottom:6px}.login-card input{width:100%;min-width:0;min-height:48px;border-radius:11px;padding:12px 14px;font-size:.95rem}.login-card input.code{font-family:Cormorant,serif;font-size:1.8rem;line-height:1;letter-spacing:.22em;text-align:center;font-variant-numeric:tabular-nums}.login-card .primary{width:100%;min-height:48px;margin-top:16px;font-size:.92rem}.login-card .back{display:block;margin:14px auto 0;font-size:.85rem}.login-error{display:flex;gap:10px;align-items:flex-start;margin-top:14px;background:#b0455c14;border:1px solid rgba(176,69,92,.24);color:var(--danger-ink);border-radius:11px;padding:11px 13px;font-size:.85rem;line-height:1.4}.login-error svg{flex-shrink:0;margin-top:1px}.login-or{display:flex;align-items:center;gap:12px;margin:20px 0 16px;color:var(--ink-soft);font-size:.78rem}.login-or:before,.login-or:after{content:"";flex:1;height:1px;background:var(--rule)}.login-widget{display:flex;justify-content:center;min-height:40px}.login-foot{margin:18px 0 0;padding-top:16px;border-top:1px solid var(--rule-soft);font-size:.8rem;color:var(--ink-soft);line-height:1.45}.lk-cta{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:13px 26px;margin-top:4px;background:var(--accent);color:#fff;border-radius:999px;font-size:.9rem;font-weight:500}.lk-cta:hover{background:var(--accent-hover);color:#fff}.login-card .muted b{font-weight:500;color:var(--ink)}.login-hint{margin:12px 0 0;font-size:.79rem;color:var(--ink-soft);line-height:1.45}