:root{--bg:#f4f7f9;--surface:#fff;--surface-2:#eef3f6;--border:#e4e6f0;--text:#1c1d26;--muted:#6b6d80;--faint:#646677;--accent:#0e7490;--accent-soft:#d9f1f7;--danger:#d13438;--shadow:0 1px 2px #1414280a, 0 8px 24px #1414280f;--radius:16px;--radius-sm:10px}:root[data-theme=dark]{--bg:#0a0f14;--surface:#171822;--surface-2:#1f2130;--border:#2a2c3d;--text:#eceef6;--muted:#9fa2b8;--faint:#8b8ea6;--accent:#22d3ee;--accent-soft:#0e2b33;--danger:#ff6b6f;--shadow:0 1px 2px #0000004d, 0 12px 32px #00000059}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,Roboto,sans-serif;font-size:15px;line-height:1.55}button{font:inherit;cursor:pointer;color:inherit;background:0 0;border:none}input,textarea,select{font:inherit;color:inherit}:where(input:not([type=checkbox]):not([type=radio]):not([type=file]),textarea,select){border:1px solid var(--border);background:var(--surface-2);color:var(--text);border-radius:var(--radius-sm);outline:none;padding:10px 12px;transition:border-color .15s,box-shadow .15s}:where(input:not([type=checkbox]):not([type=radio]):not([type=file]),textarea,select):focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent)}select option{color:initial}::selection{background:var(--accent-soft)}.app{grid-template-columns:260px 1fr;height:100%;display:grid;overflow:hidden}.sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;min-height:0;display:flex}.main{flex-direction:column;min-width:0;min-height:0;display:flex;overflow-y:auto}.brand{letter-spacing:-.02em;align-items:center;gap:10px;padding:18px 18px 10px;font-size:17px;font-weight:700;display:flex}.brand .logo{background:linear-gradient(135deg,#0e7490,#22d3ee);border-radius:9px;place-items:center;width:30px;height:30px;font-size:17px;display:grid}.side-scroll{flex:1;min-height:0;padding:6px 10px;overflow-y:auto}.side-label{text-transform:uppercase;letter-spacing:.08em;color:var(--faint);padding:12px 8px 6px;font-size:11px;font-weight:600}.nav-item{border-radius:var(--radius-sm);width:100%;color:var(--muted);text-align:left;align-items:center;gap:10px;padding:9px 10px;font-weight:500;transition:background .12s,color .12s;display:flex}.nav-item:hover{background:var(--surface-2);color:var(--text)}.nav-item.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.class-dot{border-radius:50%;flex:none;width:10px;height:10px}.nav-item .emoji{font-size:15px;line-height:1}.nav-item .count{color:var(--faint);background:var(--surface-2);border-radius:999px;margin-left:auto;padding:1px 8px;font-size:12px}.nav-item.active .count{background:var(--surface)}.side-foot{border-top:1px solid var(--border);gap:8px;padding:10px;display:flex}.add-class{color:var(--accent);font-weight:600}.btn{border-radius:var(--radius-sm);background:var(--surface-2);color:var(--text);border:1px solid #0000;align-items:center;gap:7px;padding:9px 14px;font-weight:600;transition:filter .12s,background .12s,transform 50ms;display:inline-flex}.btn:hover{filter:brightness(.97)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:disabled:hover{filter:none}.btn:disabled:active{transform:none}.btn.primary{background:var(--accent);color:#fff}:root[data-theme=dark] .btn.primary,:root[data-theme=dark] .seg button.on{background:#0e7490}.btn.ghost{border-color:var(--border);background:0 0}.btn.danger{color:var(--danger)}.btn.small{padding:6px 10px;font-size:13px}.icon-btn{width:34px;height:34px;color:var(--muted);border-radius:9px;place-items:center;display:grid}.icon-btn:hover{background:var(--surface-2);color:var(--text)}.topbar{background:color-mix(in srgb, 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h2{letter-spacing:-.01em;margin:0;font-size:15px}.section-head .line{background:var(--border);flex:1;height:1px}.tiles{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;display:grid}.tile{padding:18px 16px 14px}.tile .n{letter-spacing:-.03em;background:linear-gradient(175deg,#67e8f9 5%,#22d3ee 50%,#0e7490 100%);color:#0000;-webkit-background-clip:text;background-clip:text;width:fit-content;font-size:56px;font-weight:800;line-height:1.05}.tile .l{color:var(--muted);margin-top:2px;font-size:13px}.editor{padding:6px}.editor .title-input{letter-spacing:-.01em;background:0 0;border:none;outline:none;width:100%;padding:12px 14px 4px;font-size:20px;font-weight:700}.editor .title-input:focus,.editor .body-input:focus{box-shadow:none}.editor .body-input{resize:vertical;background:0 0;border:none;outline:none;width:100%;min-height:240px;padding:6px 14px 14px;font-size:15px;line-height:1.6}.editor-bar{border-top:1px solid 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.sp-dot{background:var(--accent);border-color:var(--accent)}.sp-day.today .sp-day-name{color:var(--accent)}.sp-day.testday .sp-dot{background:var(--danger);border-color:var(--danger)}.sp-day.past .sp-block:not(.done){border-style:dashed}.sp-day-collapsed{text-align:left;width:100%;color:var(--muted);align-items:center;gap:8px;padding:10px 0;font-size:13.5px;display:flex}.sp-blocks{flex-direction:column;gap:10px;display:flex}.sp-leftover{border-radius:var(--radius-sm);background:var(--surface-2);border:1px dashed var(--border);color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;padding:8px 10px;font-size:12.5px;display:flex}.sp-block{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);align-items:flex-start;gap:12px;padding:14px 14px 14px 18px;transition:border-color .14s,background .2s,box-shadow .2s;display:flex;position:relative}.sp-block:before{content:"";background:var(--border);border-radius:var(--radius) 0 0 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transparent);border-top-color:var(--accent)}.sp-title{letter-spacing:-.01em;font-size:15px;font-weight:600;display:inline-block;position:relative}.sp-detail{color:var(--muted);margin-top:3px;font-size:13px;line-height:1.45}.sp-meta{color:var(--faint);flex-wrap:wrap;align-items:center;gap:6px;margin-top:6px;font-size:12.5px;display:flex}.sp-meta em{color:var(--accent);font-style:normal;font-weight:700}.sp-more{width:30px;height:30px;color:var(--faint);border-radius:9px;flex:none;font-size:17px;line-height:1}.sp-more:hover{background:var(--surface-2);color:var(--text)}.sp-go{margin-top:12px}.sp-block.next{border-color:var(--accent);box-shadow:0 1px 2px #1414280a, 0 12px 30px color-mix(in srgb, var(--accent) 18%, transparent)}.sp-block.next:before{background:linear-gradient(#67e8f9,#0e7490)}.sp-block.next .sp-kind{background:var(--accent-soft)}.sp-block.done{background:color-mix(in srgb, var(--surface-2) 55%, var(--surface));box-shadow:none}.sp-block.done:before{background:color-mix(in srgb, var(--accent) 45%, var(--border))}.sp-block.done .sp-title{color:var(--faint)}.sp-block.done .sp-kind{filter:grayscale()}.sp-check{border:2px solid var(--border);color:#fff;border-radius:9px;flex:none;place-items:center;width:28px;height:28px;font-size:15px;transition:background .18s,border-color .18s;display:grid;position:relative}.sp-check:hover{border-color:var(--accent)}.sp-check span{opacity:0;transition:transform .22s cubic-bezier(.2,1.5,.4,1),opacity .14s;transform:scale(.4)rotate(-18deg)}.sp-block.done .sp-check{background:var(--accent);border-color:var(--accent)}.sp-block.done .sp-check span{opacity:1;transform:none}.sp-block.done .sp-check:after{content:"";border-radius:11px;animation:.45s ease-out sp-ring;position:absolute;inset:-2px}@keyframes sp-ring{0%{box-shadow:0 0 0 0 color-mix(in srgb, var(--accent) 55%, transparent)}to{box-shadow:0 0 0 14px #0000}}.sp-block.done .sp-title:after{content:"";background:currentColor;width:100%;height:1px;animation:.24s ease-out 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var(--surface))}.sp-card-top{align-items:flex-start;gap:12px;margin-bottom:10px;display:flex}.sp-card-emoji{font-size:22px;line-height:1.2}.sp-card-title{letter-spacing:-.01em;font-size:15.5px;font-weight:700}.sp-card-when{text-align:right;flex:none}.sp-card-when strong{color:var(--accent);letter-spacing:-.02em;font-size:20px;display:block}.sp-card-when span{color:var(--faint);font-size:11px}.sp-today-row{text-align:left;border-bottom:1px solid var(--border);align-items:center;gap:10px;width:100%;padding:11px 4px;display:flex}.sp-today-row:last-child{border-bottom:none}.sp-today-row .at{font-size:14px;font-weight:600}.sp-form .field{margin-bottom:18px}.sp-sources{flex-wrap:wrap;gap:8px;display:flex}.sp-sources .class-chip.on{background:var(--accent-soft);border-color:var(--accent);color:var(--text)}.sp-pick{border:1px solid 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h1{letter-spacing:-.02em;margin:0;font-size:20px}.sp-run-head p{color:var(--muted);margin:4px 0 0;font-size:13.5px}.sp-run-actions{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:14px;display:flex}.sp-run-notes{flex-direction:column;gap:4px;margin-top:12px;display:flex}.sp-card-face{text-align:center;width:100%;min-height:190px;padding:34px 20px;display:block}.sp-face-label{letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:12px;font-size:11px;font-weight:800}.sp-face-text{font-size:18px;font-weight:600;line-height:1.5}.sp-card-face .save-hint{margin-top:16px}.sp-question{padding:18px}.sp-q-text{font-size:16.5px;font-weight:600;line-height:1.5}.sp-choices{flex-direction:column;gap:8px;margin-top:14px;display:flex}.sp-choice{text-align:left;border-radius:var(--radius-sm);border:1.5px solid var(--border);background:var(--surface);padding:12px 14px;font-size:14.5px;line-height:1.4}.sp-choice.on{border-color:var(--accent);background:var(--accent-soft)}.sp-choice.quiz-hit{color:#fff;background:#17824a;border-color:#0000}.sp-choice.quiz-miss{color:#fff;background:#d13438;border-color:#0000}.sp-answer{border-radius:var(--radius-sm);background:var(--surface-2);margin-top:14px;padding:12px 14px;font-size:14px;line-height:1.5}.sp-answer.right{background:color-mix(in srgb, var(--accent) 12%, var(--surface))}.sp-answer.wrong{background:color-mix(in srgb, var(--danger) 12%, var(--surface))}.plan-helper{right:18px;bottom:calc(84px + env(safe-area-inset-bottom));background:var(--surface);border:1.5px solid var(--accent);width:50px;height:50px;color:var(--accent);z-index:30;border-radius:50%;place-items:center;font-size:21px;transition:transform .1s,background .15s;display:grid;position:fixed;box-shadow:0 6px 20px #0000002e}.plan-helper:active{transform:scale(.94)}.plan-helper.on{background:var(--accent-soft)}.plan-helper-scrim{display:none}.plan-helper-panel{right:18px;bottom:calc(142px + env(safe-area-inset-bottom));background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);z-index:31;flex-direction:column;width:min(380px,100vw - 36px);max-height:min(60vh,520px);animation:.14s ease-out helper-in;display:flex;position:fixed;overflow:hidden;box-shadow:0 18px 50px #00000038}@keyframes helper-in{0%{opacity:0;transform:translateY(8px)}}.plan-helper-head{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:8px;padding:12px 10px 12px 14px;display:flex}.plan-helper-head strong{font-size:14px}.plan-helper-log{flex:1;min-height:90px;padding:12px 14px;overflow-y:auto}.plan-helper-msg{white-space:pre-wrap;padding:7px 0;font-size:14px;line-height:1.55}.plan-helper-msg.me{background:var(--accent-soft);width:fit-content;max-width:85%;color:var(--text);border-radius:14px 14px 4px;margin-left:auto;padding:8px 12px}.plan-helper-msg.wait{color:var(--faint)}.plan-helper-tag{background:var(--accent-soft);color:var(--accent);vertical-align:middle;border-radius:999px;margin-left:8px;padding:1px 8px;font-size:11px;font-weight:700;display:inline-block}.plan-helper-undo{background:var(--surface-2);border:1px solid var(--border);color:var(--text);border-radius:999px;margin-top:8px;padding:5px 12px;font-size:12.5px;font-weight:600;display:block}.plan-helper-undo:hover{border-color:var(--accent);color:var(--accent)}.plan-helper-hint p{color:var(--muted);margin:0 0 10px;font-size:13.5px;line-height:1.5}.plan-helper-eg{text-align:left;border-radius:var(--radius-sm);background:var(--surface-2);width:100%;color:var(--text);margin-bottom:6px;padding:8px 10px;font-size:13px;display:block}.plan-helper-eg:hover{background:var(--accent-soft)}.plan-helper-error{color:var(--danger);margin:0;padding:0 14px 10px;font-size:13px}.plan-helper-input{background:var(--surface-2);border:1.5px solid var(--border);border-radius:22px;align-items:flex-end;gap:8px;margin:0 12px 12px;padding:7px 7px 7px 14px;transition:border-color .15s,box-shadow .15s;display:flex}.plan-helper-input:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent)}.plan-helper-input textarea{resize:none;min-width:0;max-height:132px;color:var(--text);background:0 0;border:0;outline:none;flex:1;margin:0;padding:6px 0;font-size:14px;line-height:1.45}.plan-helper-send{background:var(--accent);color:#fff;border-radius:50%;flex:none;place-items:center;width:34px;height:34px;font-size:16px;line-height:1;transition:transform .1s,background 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var(--border);border-radius:var(--radius);background:var(--surface);max-width:340px;padding:12px}.cal-head{justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px;display:flex}.cal-head strong{letter-spacing:-.01em;font-size:15px}.cal-nav{width:34px;height:34px;color:var(--muted);background:var(--surface-2);border-radius:10px;font-size:19px;line-height:1}.cal-nav:hover:not(:disabled){color:var(--text)}.cal-nav:disabled{opacity:.3;cursor:default}.cal-grid{grid-template-columns:repeat(7,1fr);gap:2px;display:grid}.cal-dow{text-align:center;letter-spacing:.04em;color:var(--faint);padding-bottom:6px;font-size:11px;font-weight:800}.cal-day{aspect-ratio:1;color:var(--text);border-radius:10px;place-items:center;font-size:13.5px;font-weight:600;transition:background .12s;display:grid}.cal-day:hover:not(:disabled){background:var(--surface-2)}.cal-day.out{color:var(--faint);font-weight:500}.cal-day:disabled{color:var(--faint);opacity:.45;cursor:default}.cal-day.today{box-shadow:inset 0 0 0 1.5px var(--accent)}.cal-day.on{background:var(--accent);color:#fff;font-weight:800}.cal-day.on.out{color:#fff}.cal-quick{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.cal-readback{border-top:1px solid var(--border);color:var(--muted);margin-top:10px;padding-top:10px;font-size:13px}.cal-readback strong{color:var(--text)}:root[data-theme=dark] .cal-day.on{background:#0e7490}@media (width<=760px){.cal{max-width:none}.cal-day{font-size:15px}}.sp-out-label{letter-spacing:.06em;text-transform:uppercase;color:var(--faint);margin-bottom:10px;font-size:11.5px;font-weight:700}.sp-out-sections{counter-reset:sp-out;margin:0;padding:0 0 0 22px;list-style:none;position:relative}.sp-out-sections:before{content:"";background:var(--border);border-radius:2px;width:2px;position:absolute;top:6px;bottom:10px;left:5px}.sp-out-section{counter-increment:sp-out;padding-bottom:18px;position:relative}.sp-out-section:last-child{padding-bottom:0}.sp-out-section:before{content:"";background:var(--surface);border:2px solid var(--accent);border-radius:50%;width:12px;height:12px;position:absolute;top:5px;left:-21px}.sp-out-role{letter-spacing:-.01em;font-size:14.5px;font-weight:700}.sp-out-job{color:var(--text);margin-top:3px;font-size:14px;line-height:1.5}.sp-out-points{color:var(--muted);flex-direction:column;gap:4px;margin:8px 0 0;padding-left:18px;font-size:13.5px;line-height:1.45;display:flex}.sp-out-ev,.sp-out-thesis{border-radius:var(--radius-sm);background:var(--surface-2);color:var(--text);margin-top:8px;padding:8px 10px;font-size:13px;line-height:1.45}.sp-out-thesis{background:var(--accent-soft);margin-top:12px}.sp-out-evlabel{color:var(--accent);margin-right:4px;font-weight:700}.sp-out-watch{border-top:1px solid var(--border);margin-top:18px;padding-top:14px}.sp-out-watch ul{color:var(--muted);flex-direction:column;gap:5px;margin:0;padding-left:18px;font-size:13.5px;line-height:1.45;display:flex}.sp-check-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.sp-check-row{text-align:left;border-radius:var(--radius-sm);border:1.5px solid var(--border);background:var(--surface);align-items:flex-start;gap:10px;width:100%;padding:11px 12px;transition:border-color .15s,background .15s;display:flex}@media (hover:hover){.sp-check-row:hover{border-color:var(--accent)}}.sp-check-row.on{border-color:var(--accent);background:var(--accent-soft)}.sp-check-box{border:1.5px solid var(--border);background:var(--surface);color:#0000;border-radius:6px;flex:none;place-items:center;width:20px;height:20px;margin-top:1px;font-size:12px;font-weight:700;display:grid}.sp-check-row.on .sp-check-box{background:var(--accent);border-color:var(--accent);color:#fff}:root[data-theme=dark] .sp-check-row.on .sp-check-box{background:#0e7490;border-color:#0e7490}.sp-check-text{font-size:14px;line-height:1.45;display:block}.sp-check-why{color:var(--muted);margin-top:3px;font-size:12.5px;line-height:1.4;display:block}.sp-check-row.on .sp-check-text{text-decoration:line-through;-webkit-text-decoration-color:var(--faint);text-decoration-color:var(--faint)}.sp-essay-card{margin-bottom:12px;padding:16px 18px}