/* Quiz Me! flashcards */
.qm-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.qm-head h1 { margin-bottom: 8px !important; }
.qm-profile { display: flex; flex-direction: column; align-items: flex-end; padding: 6px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-elev); margin-bottom: 10px; }
.qm-profile span { font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); font-weight: 700; }
.qm-profile b { font: 500 16px var(--serif); }
.qm-profile:hover { border-color: var(--accent); }
.page-head kbd, .qm-actions kbd { font: 600 11px var(--sans); border: 1px solid var(--line-2); border-bottom-width: 2px; border-radius: 5px; padding: 0 5px; color: var(--ink-3); background: var(--bg-elev); }

/* counts: new / learning / due */
.qm-counts { display: inline-flex; gap: 10px; font-style: normal; font-weight: 700; font-variant-numeric: tabular-nums; font-size: 14px; }
.qm-counts i { font-style: normal; min-width: 18px; text-align: right; }
.c-new { color: #3a72c4; } .c-learn { color: #c4453a; } .c-due { color: #2f8f5b; }
[data-theme="dark"] .c-new { color: #7fa9ea; } [data-theme="dark"] .c-learn { color: #ef8a80; } [data-theme="dark"] .c-due { color: #6cc496; }
.qm-legend { display: flex; align-items: center; gap: 6px 14px; font-size: 12.5px; color: var(--ink-3); flex-wrap: wrap; margin-left: auto; }
.qm-legend i { display: inline-block; width: 9px; height: 9px; border-radius: 3px; background: currentColor; margin-right: -8px; }
.qm-legend .c-new { color: #3a72c4; } .qm-legend .c-learn { color: #c4453a; } .qm-legend .c-due { color: #2f8f5b; }

.qm-today { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; margin-bottom: 18px; padding: 16px 20px; border-radius: 16px; background: var(--bg-elev); border: 1px solid var(--line); }
.qm-today b { display: block; font: 400 30px/1 var(--serif); }
.qm-today span { font-size: 12px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .07em; font-weight: 600; }
.qm-group h3 { font: 500 20px var(--serif); margin: 26px 0 10px; }
.qm-decks { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 10px; }
.qm-deck { display: flex; align-items: center; gap: 14px; padding: 12px 16px 12px 12px; background: var(--bg-elev); border: 1px solid var(--line); border-radius: 14px; transition: all .15s; }
.qm-deck:hover { border-color: var(--accent); box-shadow: var(--shadow); transform: translateY(-1px); }
.qm-deck .guide-icon { flex-basis: 48px; height: 48px; border-radius: 14px; }
.qm-deck .guide-icon svg { width: 24px; height: 24px; }
.qm-deck:hover .guide-icon { background: var(--accent); color: #fff; }
.qm-deck-body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.qm-deck-body b { font: 500 16.5px/1.25 var(--serif); }
.qm-deck-body span { font-size: 12.5px; color: var(--ink-3); }

/* study */
.qm-study { max-width: 760px; margin: 0 auto; padding: 22px 24px 40px; }
.qm-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.qm-counts.big { font-size: 18px; gap: 16px; }
.qm-card { background: var(--bg-elev); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow-lg); padding: 26px 30px 30px; min-height: 280px; display: flex; flex-direction: column; }
.qm-card-top { display: flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); }
.qm-card-top .guide-icon { flex-basis: 34px; height: 34px; border-radius: 10px; }
.qm-card-top .guide-icon svg { width: 18px; height: 18px; }
.qm-card-top em { margin-left: auto; font-style: normal; color: #3a72c4; background: color-mix(in srgb, #3a72c4 12%, transparent); padding: 2px 8px; border-radius: 6px; }
.qm-front { font: 400 23px/1.45 var(--serif); margin: 26px 0 8px; color: var(--ink); }
.qm-front i { color: var(--accent); }
.qm-back { border-top: 1px dashed var(--line-2); margin-top: 18px; padding-top: 18px; animation: fade .25s ease both; }
.qm-answer { font: 400 19px/1.6 var(--serif); color: var(--ink); }
.qm-answer i { color: var(--accent); }
.fc-sub { display: block; margin-top: 10px; font: 400 15px/1.55 var(--sans); color: var(--ink-2); }
.qm-case { display: flex; flex-direction: column; gap: 2px; margin-top: 18px; padding: 12px 16px; border-radius: 12px; background: var(--accent-soft); }
.qm-case b { font: 500 16px var(--serif); color: var(--ink); }
.qm-case span { font-size: 12.5px; color: var(--accent); font-weight: 600; }
.qm-case:hover b { color: var(--accent); }
.qm-actions { margin-top: 18px; display: flex; justify-content: center; }
.qm-show { min-width: 240px; padding: 14px 24px; font-size: 15px; }
.qm-show kbd { margin-left: 8px; background: transparent; color: inherit; opacity: .7; border-color: currentColor; }
.qm-grades { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; width: 100%; }
.qm-grade { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 12px 8px 10px; border-radius: 14px; border: 1px solid var(--line); background: var(--bg-elev); cursor: pointer; transition: all .15s; position: relative; }
.qm-grade b { font-size: 15px; }
.qm-grade span { font-size: 12.5px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.qm-grade kbd { position: absolute; top: 6px; right: 8px; font-size: 10px; }
.qm-grade.g1 b { color: #c4453a; } .qm-grade.g2 b { color: #b7791f; } .qm-grade.g3 b { color: #2f8f5b; } .qm-grade.g4 b { color: #3a72c4; }
[data-theme="dark"] .qm-grade.g1 b { color: #ef8a80; } [data-theme="dark"] .qm-grade.g2 b { color: #e6b45e; } [data-theme="dark"] .qm-grade.g3 b { color: #6cc496; } [data-theme="dark"] .qm-grade.g4 b { color: #7fa9ea; }
.qm-grade:hover { border-color: currentColor; transform: translateY(-1px); box-shadow: var(--shadow); }
.qm-grade.g1:hover { border-color: #c4453a; } .qm-grade.g2:hover { border-color: #b7791f; } .qm-grade.g3:hover { border-color: #2f8f5b; } .qm-grade.g4:hover { border-color: #3a72c4; }
.qm-done { text-align: center; padding: 50px 20px; background: var(--bg-elev); border: 1px solid var(--line); border-radius: 22px; }
.qm-done .guide-icon { margin: 0 auto 14px; }
.qm-done h2 { font: 400 30px var(--serif); margin: 0 0 8px; }
.qm-done p { color: var(--ink-2); max-width: 52ch; margin: 0 auto 18px; }

/* decks & settings */
.qm-settings { display: grid; grid-template-columns: 1fr 1.4fr; gap: 16px; }
.qm-field { display: grid; grid-template-columns: 1fr 110px; align-items: center; gap: 12px; margin-bottom: 10px; font-size: 14px; }
.qm-profiles { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.qm-profile-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.qm-table-wrap { overflow-x: auto; background: var(--bg-elev); border: 1px solid var(--line); border-radius: 16px; }
.qm-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.qm-table th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); padding: 12px 14px; border-bottom: 1px solid var(--line); }
.qm-table td { padding: 8px 14px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.qm-table tr:last-child td { border-bottom: 0; }
.qm-row-deck { display: flex; align-items: center; gap: 10px; font: 500 15px var(--serif); }
.qm-row-deck .guide-icon { flex-basis: 32px; height: 32px; border-radius: 9px; }
.qm-row-deck .guide-icon svg { width: 17px; height: 17px; }
.qm-row-deck:hover span { color: var(--accent); }

/* stats */
.qm-tiles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-bottom: 16px; }
.qm-tile { background: var(--bg-elev); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; }
.qm-tile span { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); }
.qm-tile b { display: block; font: 400 34px/1.1 var(--serif); margin: 6px 0 2px; color: var(--ink); }
.qm-tile em { font-style: normal; font-size: 12.5px; color: var(--ink-3); }
.qm-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; align-items: start; }
.qm-charts .panel { margin-bottom: 16px; }
.chart { width: 100%; height: auto; display: block; overflow: visible; stroke: none; stroke-width: 0; }
.chart * { stroke: none; }
.chart .cg { stroke: var(--line); stroke-width: 1; }
.chart .ct { fill: var(--ink-3); font: 500 10px var(--sans); }
.chart .cb path { fill: var(--accent); opacity: .85; transition: opacity .12s; }
.chart .cb.hover path { opacity: 1; }
.chart .cb.hover rect { fill: color-mix(in srgb, var(--ink) 5%, transparent); }
.hbars { display: grid; gap: 7px; }
.hbar { display: grid; grid-template-columns: minmax(150px, 220px) 1fr 44px; align-items: center; gap: 10px; font-size: 13px; padding: 2px 4px; border-radius: 8px; }
.hbar.hover { background: var(--bg-sunk); }
.hbar-l { display: flex; align-items: center; gap: 8px; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hbar-l .guide-icon { flex: 0 0 22px; height: 22px; border-radius: 6px; border: 0; }
.hbar-l .guide-icon svg { width: 13px; height: 13px; }
.hbar-l .guide-icon::after { display: none; }
.hbar-track { height: 8px; border-radius: 4px; background: var(--bg-sunk); overflow: hidden; }
.hbar-track i { display: block; height: 100%; border-radius: 4px; background: var(--accent); opacity: .85; }
.hbar-v { text-align: right; font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }
.chart-tip { position: fixed; z-index: 300; pointer-events: none; opacity: 0; background: var(--ink); color: var(--bg); font-size: 12.5px; font-weight: 500; padding: 6px 10px; border-radius: 8px; box-shadow: var(--shadow); transition: opacity .1s; max-width: 280px; }

@media (max-width: 980px) { .qm-tiles { grid-template-columns: repeat(2, 1fr); } .qm-charts, .qm-settings { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .qm-grades { grid-template-columns: repeat(2, 1fr); } .qm-front { font-size: 20px; } .qm-card { padding: 20px; } .hbar { grid-template-columns: 120px 1fr 40px; } }

/* three-part answers: background / ruling / importance */
.qm-answer .fc-secs { display: grid; gap: 14px; }
.fc-sec h4 { margin: 0 0 4px; font: 700 11px var(--sans); letter-spacing: .09em; text-transform: uppercase; color: var(--accent); }
.fc-sec p { margin: 0; font: 400 16.5px/1.6 var(--serif); color: var(--ink); }
.fc-vote { display: block; margin-top: 6px; font: 500 13px var(--sans); color: var(--ink-3); }
.fc-src { margin: 16px 0 0; font: 400 12px/1.5 var(--sans); color: var(--ink-3); }
.fc-src a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }

/* Learning Center: term decks */
.qm-terms { margin-top: 34px; }
.qm-court { border: 1px solid var(--line); border-radius: 14px; background: var(--bg-elev); margin-bottom: 10px; }
.qm-court summary { cursor: pointer; padding: 14px 18px; display: flex; align-items: baseline; gap: 12px; list-style: none; }
.qm-court summary::-webkit-details-marker { display: none; }
.qm-court summary::before { content: '▸'; color: var(--ink-3); transition: transform .15s; }
.qm-court[open] summary::before { transform: rotate(90deg); }
.qm-court summary b { font: 500 17px var(--serif); }
.qm-court summary span { font-size: 12.5px; color: var(--ink-3); }
.qm-term-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 8px; padding: 0 18px 16px; }
.qm-term-list a { display: flex; flex-direction: column; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); }
.qm-term-list a:hover { border-color: var(--accent); }
.qm-term-list b { font: 500 14.5px var(--serif); }
.qm-term-list span { font-size: 12px; color: var(--ink-3); }

/* Learning Center: games */
.game-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; max-width: 1000px; margin: 0 auto; }
.game-card { display: flex; flex-direction: column; gap: 8px; padding: 20px 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--bg-elev); color: var(--ink); transition: all .15s; }
.game-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); }
.game-card b { font: 500 21px var(--serif); }
.game-card span { font-size: 14px; color: var(--ink-2); line-height: 1.5; }
.game-card em { margin-top: auto; font-style: normal; font-size: 13px; font-weight: 600; color: var(--accent); }
.game-score { font-size: 13px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.game-prompt { margin: 18px 0 6px; }
.game-case { font: 400 22px/1.35 var(--serif); margin: 0 0 10px; }
.game-case i { color: var(--accent); }
.game-q { font: 400 16.5px/1.6 var(--serif); color: var(--ink); }
.game-opts { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
.game-opt { text-align: left; padding: 13px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); color: var(--ink); font: 400 15px/1.55 var(--sans); cursor: pointer; transition: border-color .15s, background .15s; display: flex; gap: 10px; align-items: flex-start; }
.game-opt:hover:not(.done) { border-color: var(--accent); }
.game-opt.sel { border-color: var(--accent); background: var(--accent-soft); }
.game-opt.done { cursor: default; }
.game-opt.right { border-color: #2f8f5b; background: color-mix(in srgb, #2f8f5b 14%, var(--bg)); }
.game-opt.wrong { border-color: #c4453a; background: color-mix(in srgb, #c4453a 14%, var(--bg)); }
.game-opt i { color: var(--accent); }
.game-after { margin-top: 18px; display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.game-after p { margin: 0; color: var(--ink-2); }
.tl-n { flex: 0 0 22px; height: 22px; border-radius: 50%; border: 1px solid var(--line-2); font-size: 12px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; }
.dd-clues { margin: 18px 0 6px; padding-left: 22px; display: flex; flex-direction: column; gap: 10px; font: 400 15.5px/1.6 var(--serif); }
.dd-more { align-self: flex-start; margin-top: 6px; }
.qm-study.wide { max-width: 1060px; }
.match-board { display: grid; grid-template-columns: 1fr 2fr; gap: 16px; }
.match-col { display: flex; flex-direction: column; gap: 10px; }
.match-item { text-align: left; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-elev); color: var(--ink); font: 400 14px/1.5 var(--sans); cursor: pointer; min-height: 64px; transition: all .15s; }
.match-item:not(.desc) { font: 400 15.5px/1.35 var(--serif); }
.match-item i { color: var(--accent); }
.match-item:hover:not(.matched) { border-color: var(--accent); }
.match-item.sel { border-color: var(--accent); background: var(--accent-soft); }
.match-item.wrong { border-color: #c4453a; background: color-mix(in srgb, #c4453a 14%, var(--bg-elev)); }
.match-item.matched { border-color: #2f8f5b; background: color-mix(in srgb, #2f8f5b 12%, var(--bg-elev)); opacity: .65; cursor: default; }
@media (max-width: 700px) { .match-board { grid-template-columns: 1fr; } }