:root{--ink:#211c33;--muted:#6f6a7f;--paper:#fbf8f2;--violet:#5d4ab3;--violet-dark:#32256f;--gold:#e8b24b;--line:#ded8ea;--green:#2f956a;--red:#8e3553;--shadow:0 24px 70px rgba(32,24,69,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--ink);background:radial-gradient(circle at 8% 15%,rgba(232,178,75,.16),transparent 31%),radial-gradient(circle at 92% 10%,rgba(93,74,179,.16),transparent 31%),#f4f0e9;font-family:Georgia,"Noto Serif TC","Times New Roman",serif}.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;background:#fff;color:#111;padding:12px 18px;border-radius:12px}.skip-link:focus{top:16px}.header-button{border:1px solid rgba(33,28,51,.16);background:#fff;color:var(--ink);border-radius:999px;padding:10px 18px;font:700 14px system-ui,sans-serif;text-decoration:none}.connection-pill,.user-pill{display:inline-flex;align-items:center;min-height:38px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid rgba(33,28,51,.12);font:700 13px/1.2 system-ui,sans-serif}.connection-pill[data-state=online]{color:#116846;background:#ecfbf4}.connection-pill[data-state=error]{color:#a03535;background:#fff1f1}.eyebrow{font:800 11px/1.2 system-ui,sans-serif;letter-spacing:.2em;color:var(--violet);text-transform:uppercase}
.loading-card{max-width:620px;margin:12vh auto;padding:54px;text-align:center;background:rgba(255,255,255,.9);border-radius:34px;box-shadow:var(--shadow)}.loading-mark{display:grid;place-content:center;width:70px;height:70px;margin:auto;border-radius:22px;background:var(--violet-dark);color:#fff;font-size:25px;font-weight:900}.loading-card h1{font-size:36px}.loading-card p{color:var(--muted);font:600 15px system-ui,sans-serif}
.planner-shell{max-width:1520px;margin:auto;padding:clamp(28px,4vw,64px)}.planner-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;background:linear-gradient(132deg,#211938,#403178 58%,#6b55bf);color:#fff;border-radius:34px;padding:clamp(32px,5vw,66px);box-shadow:var(--shadow);overflow:hidden}.planner-hero .eyebrow{color:#e7dfff}.planner-hero h1{font-size:clamp(44px,6vw,82px);line-height:1;margin:16px 0}.planner-hero p{margin:0;max-width:720px;color:rgba(255,255,255,.76);font:600 clamp(15px,1.3vw,19px)/1.6 system-ui,sans-serif}.hero-date{width:150px;aspect-ratio:1;border:1px solid rgba(255,255,255,.22);border-radius:50%;background:rgba(255,255,255,.1);display:grid;place-content:center;text-align:center;backdrop-filter:blur(10px);flex:0 0 auto}.hero-date strong{font-size:47px;line-height:1}.hero-date span{margin-top:8px;color:rgba(255,255,255,.72);font:800 12px system-ui,sans-serif}
.date-toolbar{display:grid;grid-template-columns:auto minmax(220px,360px) auto;justify-content:center;align-items:end;gap:12px;margin:22px 0;padding:16px;border:1px solid rgba(51,39,100,.1);border-radius:22px;background:rgba(255,255,255,.74)}.date-toolbar button,.board-actions button{border:1px solid #d9d0ee;background:#fff;color:var(--violet-dark);border-radius:13px;padding:13px 17px;font:800 13px system-ui,sans-serif;cursor:pointer}.date-toolbar label span{display:block;margin-bottom:6px;color:var(--muted);font:800 11px system-ui,sans-serif}.date-toolbar input{width:100%;border:1px solid #d8d1e2;background:#fff;border-radius:13px;padding:12px 14px;color:var(--ink);font:750 15px system-ui,sans-serif}
.planner-board,.archive-board{background:rgba(255,255,255,.91);border:1px solid rgba(255,255,255,.96);box-shadow:var(--shadow);border-radius:34px;padding:clamp(24px,4vw,52px);margin-top:22px}.board-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;padding-bottom:24px;border-bottom:1px solid var(--line)}.board-heading h2{font-size:clamp(28px,3vw,42px);margin:8px 0}.board-heading p{margin:0;color:var(--muted);font:600 14px/1.55 system-ui,sans-serif}.board-actions{display:flex;align-items:center;gap:12px}.board-actions>span{color:var(--muted);font:700 13px system-ui,sans-serif}.board-actions>span strong{color:var(--ink);font-size:24px}.board-actions button{background:var(--violet-dark);color:#fff;border-color:var(--violet-dark)}.status-message{margin:18px 0 0;border-radius:14px;padding:12px 15px;background:#edf9f3;color:#176542;font:750 13px system-ui,sans-serif}.status-message[data-state=error]{background:#fff0f2;color:#9b3149}
.task-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:24px}.task-card{border:1px solid var(--line);border-radius:20px;background:#fff;overflow:hidden}.task-card[open]{grid-column:1/-1;border-color:rgba(93,74,179,.4);box-shadow:0 16px 40px rgba(48,35,99,.1)}.task-card summary{display:grid;grid-template-columns:auto 1fr auto;gap:13px;align-items:center;padding:18px;cursor:pointer;list-style:none}.task-card summary::-webkit-details-marker{display:none}.task-number{display:grid;place-content:center;width:43px;height:43px;border-radius:14px;background:#f0ecfb;color:var(--violet);font:900 16px system-ui,sans-serif}.task-summary-copy strong{display:block;font-size:17px}.task-summary-copy small{display:block;margin-top:4px;color:var(--muted);font:650 11px system-ui,sans-serif}.task-chevron{color:var(--violet);font-size:20px;transition:.2s}.task-card[open] .task-chevron{transform:rotate(180deg)}.task-form{padding:0 20px 22px}.task-timer-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:0 0 18px;padding:16px 18px;border:1px solid #d9d0ee;border-radius:17px;background:linear-gradient(120deg,#f5f1ff,#fff8e7)}.task-timer-bar span{display:block;color:var(--muted);font:800 11px system-ui,sans-serif}.task-timer-bar strong{display:block;margin-top:4px;color:var(--violet-dark);font:900 25px/1 system-ui,sans-serif;font-variant-numeric:tabular-nums}.task-timer-bar button{border:0;border-radius:999px;background:var(--violet-dark);color:#fff;padding:11px 17px;font:800 13px system-ui,sans-serif;cursor:pointer}.title-field span,.question-field span{display:block;margin-bottom:7px;font:800 12px/1.35 system-ui,sans-serif}.title-field input,.question-field textarea{width:100%;border:1px solid #dcd5e6;border-radius:13px;background:#fff;padding:12px 14px;color:var(--ink);font:600 15px/1.5 system-ui,sans-serif}.title-field input:focus,.question-field textarea:focus{outline:3px solid rgba(93,74,179,.11);border-color:var(--violet)}.task-questions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;margin-top:18px}.question-field{padding:13px;border:1px solid #e5dfec;border-radius:15px;background:#fbfafc}.question-field textarea{min-height:82px;resize:vertical}.question-field[data-reflection=true]{background:#f5f0fb;border-color:#d9cbea}.difficulty-rating{display:flex;align-items:center;gap:14px;margin:18px 0 0;padding:16px 18px;border:1px solid #eadcaf;border-radius:17px;background:#fffaf0}.difficulty-rating legend{padding:0 7px;color:#6d5220;font:800 12px system-ui,sans-serif}.difficulty-rating>span{color:var(--muted);font:750 12px system-ui,sans-serif}.rating-stars{display:flex;gap:4px}.rating-stars button{border:0;background:transparent;color:#d8cfbd;font-size:26px;line-height:1;padding:2px;cursor:pointer}.rating-stars button[aria-pressed=true]{color:#e2a92e;text-shadow:0 2px 7px rgba(190,129,0,.25)}.task-form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px;flex-wrap:wrap}.task-form-actions button{border:1px solid #d9d0ee;border-radius:13px;padding:12px 17px;background:#fff;color:var(--violet-dark);font:800 13px system-ui,sans-serif;cursor:pointer}.task-form-actions .stop-timer{margin-right:auto;background:#fff5df;border-color:#e8c472;color:#6f4910}.task-form-actions .move-task{color:#644b17;border-color:#e4c97e}.task-form-actions .save-task{background:var(--violet-dark);border-color:var(--violet-dark);color:#fff}.task-form-actions .archive-task{background:var(--green);border-color:var(--green);color:#fff}.task-form-actions button:disabled,.task-timer-bar button:disabled{opacity:.55;cursor:wait}
.archive-board{margin-bottom:50px}.archive-count{display:grid;place-content:center;min-width:54px;height:54px;border-radius:18px;background:#eef9f3;color:var(--green);font:900 20px system-ui,sans-serif}.archive-list{display:grid;gap:12px;margin-top:20px}.archive-empty{padding:28px;text-align:center;border:1px dashed #d8d1e2;border-radius:18px;color:var(--muted);font:650 14px system-ui,sans-serif}.archive-item{border:1px solid #d9e9e0;border-radius:18px;background:#f7fcf9}.archive-item summary{padding:17px 19px;cursor:pointer}.archive-item summary strong{font-size:17px}.archive-item summary small{display:block;margin-top:5px;color:var(--muted);font:650 11px system-ui,sans-serif}.archive-content{padding:0 19px 20px}.archive-answer{border-top:1px solid #dfece5;padding:12px 0}.archive-answer strong{display:block;font:800 12px/1.45 system-ui,sans-serif}.archive-answer p{margin:5px 0 0;white-space:pre-wrap;font:600 14px/1.55 system-ui,sans-serif;color:#3c4e45}.reactivate-task{margin-top:14px;border:1px solid #b9ddca;border-radius:13px;padding:11px 16px;background:#fff;color:#176542;font:800 13px system-ui,sans-serif;cursor:pointer}.reactivate-task:disabled{opacity:.55}

/* Saved work is intentionally warmer and more prominent than an unused slot. */
.task-summary-copy strong{font-size:clamp(20px,1.6vw,25px);line-height:1.2}.task-summary-copy .saved-task-title{color:#b47700;text-shadow:0 1px 0 rgba(255,255,255,.8)}.task-card[data-saved=true]{border-color:#ead59a}.task-card[data-saved=true] .task-number{background:linear-gradient(145deg,#fff3bf,#f3c966);color:#704600}.task-grid>.task-card:nth-child(4n+1){background:linear-gradient(135deg,#fff,#f8f3ff)}.task-grid>.task-card:nth-child(4n+2){background:linear-gradient(135deg,#fff,#effaf4)}.task-grid>.task-card:nth-child(4n+3){background:linear-gradient(135deg,#fff,#fff7e2)}.task-grid>.task-card:nth-child(4n+4){background:linear-gradient(135deg,#fff,#fff0ec)}
.question-heading{display:flex!important;align-items:flex-start;justify-content:space-between;gap:12px}.question-heading b{flex:1}.thinking-time-pill{flex:0 0 auto;padding:5px 8px;border-radius:999px;background:#eee9f9;color:#5d4ab3;font:800 10px/1 system-ui,sans-serif;font-style:normal;font-variant-numeric:tabular-nums;white-space:nowrap}.question-field:nth-child(4n+1){background:#fbf8ff}.question-field:nth-child(4n+2){background:#f4fbf8}.question-field:nth-child(4n+3){background:#fffaf0}.question-field:nth-child(4n+4){background:#fff5f2}.question-field.is-thinking{border-color:#e5ad2f;box-shadow:0 0 0 3px rgba(232,178,75,.18)}.question-field.is-thinking .thinking-time-pill{background:#ffdd88;color:#684100}

.day-planner{margin-top:26px;padding:clamp(22px,3vw,36px);border:1px solid #f0d5b2;border-radius:28px;background:linear-gradient(145deg,rgba(255,252,245,.97),rgba(243,250,247,.96));box-shadow:0 18px 50px rgba(45,81,68,.09)}.day-planner-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;padding-bottom:20px;border-bottom:1px solid #e6ddce}.day-planner-heading h3{margin:7px 0 4px;font-size:clamp(27px,3vw,39px)}.day-planner-heading p{margin:0;color:var(--muted);font:600 13px/1.5 system-ui,sans-serif}.day-planner-key{display:inline-flex;align-items:center;gap:8px;color:#31745b;font:800 12px system-ui,sans-serif;white-space:nowrap}.day-planner-key i{width:10px;height:10px;border-radius:50%;background:#45a97c;box-shadow:0 0 0 5px rgba(69,169,124,.12)}.hour-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 14px;margin-top:20px}.hour-block{display:grid;grid-template-columns:68px minmax(0,1fr);gap:12px;padding:13px;border:1px solid #e5dfd4;border-radius:17px;background:rgba(255,255,255,.86);transition:.2s}.hour-block:nth-child(4n+2),.hour-block:nth-child(4n+3){background:rgba(245,251,248,.94)}.hour-block[data-filled=true]{border-color:#d8b75d;box-shadow:0 9px 24px rgba(142,103,19,.08)}.hour-block>time{padding-top:10px;color:#a26419;font:900 15px/1 system-ui,sans-serif;font-variant-numeric:tabular-nums}.hour-content textarea{width:100%;min-height:60px;resize:vertical;border:1px solid #ded8ce;border-radius:12px;padding:10px 12px;background:#fff;color:var(--ink);font:600 14px/1.5 system-ui,sans-serif}.hour-content textarea:focus{outline:3px solid rgba(47,149,106,.13);border-color:#3b9b72}.hour-tags{display:flex;align-items:flex-start;gap:9px;margin-top:8px}.hour-tags>span{padding-top:5px;color:#756f64;font:800 10px system-ui,sans-serif;white-space:nowrap}.hour-tag-list{display:flex;flex-wrap:wrap;gap:5px}.hour-tag-list button{min-width:29px;height:29px;border:1px solid #ddd3c2;border-radius:9px;background:#fff;color:#665c4b;font:850 11px system-ui,sans-serif;cursor:pointer}.hour-tag-list button[aria-pressed=true]{border-color:#2f956a;background:#2f956a;color:#fff;box-shadow:0 4px 10px rgba(47,149,106,.2)}
[hidden]{display:none!important}@media(max-width:900px){.task-grid{grid-template-columns:1fr}.task-questions,.hour-grid{grid-template-columns:1fr}.board-heading,.day-planner-heading{align-items:flex-start;flex-direction:column}.board-actions{width:100%;justify-content:space-between}}@media(max-width:600px){.planner-shell{padding:18px 12px}.planner-hero{border-radius:24px;padding:28px 22px;align-items:flex-start}.planner-hero h1{font-size:43px}.hero-date{width:92px}.hero-date strong{font-size:30px}.hero-date span{font-size:9px}.date-toolbar{grid-template-columns:1fr 1fr}.date-toolbar label{grid-column:1/-1;grid-row:1}.planner-board,.archive-board,.day-planner{border-radius:24px;padding:21px 14px}.board-actions{align-items:center;flex-wrap:wrap}.task-card[open]{margin-inline:-2px}.task-form{padding-inline:13px}.task-timer-bar{align-items:flex-start;flex-direction:column}.difficulty-rating{align-items:flex-start;flex-wrap:wrap}.task-form-actions{flex-direction:column}.task-form-actions button{width:100%}.task-form-actions .stop-timer{margin-right:0}.question-heading{align-items:flex-start;flex-direction:column}.hour-block{grid-template-columns:52px minmax(0,1fr);padding:11px}.hour-tags{display:block}.hour-tags>span{display:block;margin-bottom:6px}}

/* Priority, tag, editable-timer and daily-summary enhancements. */
.task-card[data-tagged=true]{border:3px solid transparent;background:linear-gradient(#fff,#fff) padding-box,var(--tag-edge) border-box}.task-card[data-tagged=true][open]{background:linear-gradient(#fff,#fff) padding-box,var(--tag-edge) border-box}.summary-tags{display:flex!important;gap:5px;margin-top:8px}.summary-tags i{width:10px;height:10px;border-radius:50%;box-shadow:0 0 0 2px #fff,0 0 0 3px rgba(33,28,51,.12)}
.task-timer-bar strong[tabindex="0"]{cursor:text;text-decoration:underline dotted;text-underline-offset:5px}.timer-edit-input{width:155px;border:1px solid #8f7ccb;border-radius:9px;padding:7px 9px;color:var(--violet-dark);font:900 19px/1 system-ui,sans-serif;font-variant-numeric:tabular-nums}
.export-step20{margin-top:9px;border:1px solid #d8c06b;border-radius:10px;padding:8px 12px;background:#fff8da;color:#634a07;font:800 11px system-ui,sans-serif;cursor:pointer}.task-tag-picker{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 0;padding:16px;border:1px solid #dfd7ea;border-radius:17px;background:#faf8fc}.task-tag-picker legend{padding:0 7px;color:var(--muted);font:800 12px system-ui,sans-serif}.task-tag-picker button{border:2px solid var(--tag-color);border-radius:999px;padding:8px 12px;background:#fff;color:#4b4559;font:800 11px system-ui,sans-serif;cursor:pointer}.task-tag-picker button[aria-pressed=true]{background:var(--tag-color);color:var(--tag-text);box-shadow:0 5px 13px color-mix(in srgb,var(--tag-color) 35%,transparent)}
.day-writing-total{display:flex;justify-content:flex-end;align-items:center;gap:14px;margin-top:18px;padding:15px 18px;border-radius:16px;background:linear-gradient(120deg,#eef8f4,#fff8df);color:var(--muted);font:800 12px system-ui,sans-serif}.day-writing-total strong{color:#225b47;font:900 24px system-ui,sans-serif;font-variant-numeric:tabular-nums}.archive-summary{display:flex;align-items:center;gap:10px}.archive-summary>span{color:var(--muted);font:750 11px system-ui,sans-serif}.completion-rate{display:grid;place-content:center;min-width:70px;height:54px;border-radius:18px;background:#fff4cf;color:#8a5a00;font:900 20px system-ui,sans-serif}
.task-grid[data-prioritizing=true]{grid-template-columns:1fr;padding:18px;border:2px dashed #9f8dd8;border-radius:24px;background:#f8f5ff}.task-grid[data-prioritizing=true] .task-card[data-saved=true]{cursor:grab;box-shadow:0 8px 20px rgba(50,37,111,.1)}.task-grid[data-prioritizing=true] .task-card[data-saved=false]{display:none}.task-card.is-dragging{opacity:.5;transform:scale(.98)}.board-actions [data-priority-save]{background:var(--green);border-color:var(--green)}
.archive-item[data-tagged=true]{border:3px solid transparent;background:linear-gradient(#fff,#fff) padding-box,var(--tag-edge) border-box}.archive-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:14px}.archive-tags span{padding:6px 10px;border-radius:999px;background:var(--tag-color);color:var(--tag-text);font:800 10px system-ui,sans-serif}
[data-tag-edge=reluctant]{--tag-edge:#ab12e6}[data-tag-edge=favourite]{--tag-edge:#ff3473}[data-tag-edge=teacher-added]{--tag-edge:#920909}[data-tag-edge=well-done]{--tag-edge:#ffd591}[data-tag-edge=break-15]{--tag-edge:#a1ff80}[data-tag-edge=prepare-materials]{--tag-edge:#32cd32}[data-tag-edge=hardest-today]{--tag-edge:#7f1734}[data-tag-edge=easiest-today]{--tag-edge:#74c9f1}
.task-tag-picker [data-tag-key=reluctant],.archive-tags [data-tag-key=reluctant]{--tag-color:#ab12e6;--tag-text:#fff}.task-tag-picker [data-tag-key=favourite],.archive-tags [data-tag-key=favourite]{--tag-color:#ff3473;--tag-text:#25182b}.task-tag-picker [data-tag-key=teacher-added],.archive-tags [data-tag-key=teacher-added]{--tag-color:#920909;--tag-text:#fff}.task-tag-picker [data-tag-key=well-done],.archive-tags [data-tag-key=well-done]{--tag-color:#ffd591;--tag-text:#25182b}.task-tag-picker [data-tag-key=break-15],.archive-tags [data-tag-key=break-15]{--tag-color:#a1ff80;--tag-text:#25182b}.task-tag-picker [data-tag-key=prepare-materials],.archive-tags [data-tag-key=prepare-materials]{--tag-color:#32cd32;--tag-text:#143714}.task-tag-picker [data-tag-key=hardest-today],.archive-tags [data-tag-key=hardest-today]{--tag-color:#7f1734;--tag-text:#fff}.task-tag-picker [data-tag-key=easiest-today],.archive-tags [data-tag-key=easiest-today]{--tag-color:#74c9f1;--tag-text:#173b51}
.summary-tags [data-tag-key=reluctant]{background:#ab12e6}.summary-tags [data-tag-key=favourite]{background:#ff3473}.summary-tags [data-tag-key=teacher-added]{background:#920909}.summary-tags [data-tag-key=well-done]{background:#ffd591}.summary-tags [data-tag-key=break-15]{background:#a1ff80}.summary-tags [data-tag-key=prepare-materials]{background:#32cd32}.summary-tags [data-tag-key=hardest-today]{background:#7f1734}.summary-tags [data-tag-key=easiest-today]{background:#74c9f1}
@media(max-width:600px){.day-writing-total{align-items:flex-start;flex-direction:column}.archive-summary{width:100%;flex-wrap:wrap}.task-tag-picker button{flex:1 1 42%}}