/* Casebook case page: the case file (manila folder), the notebook (marks), hints, closing the case, the solved report. */
.case-head{padding:14px 0 4px}
.crumbs{font-size:14px;color:var(--ink-soft);margin:0 0 6px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.crumbs a{color:var(--ink-soft)}
.case-head h1{font-size:clamp(34px,5vw,56px);letter-spacing:-1.6px;line-height:1;margin:0 0 8px;font-weight:800}
.case-head .meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--ink-soft);font-size:15px}
.case-head .meta .venue{margin-right:4px}

.board{display:grid;grid-template-columns:minmax(0,.94fr) minmax(0,1.06fr);gap:26px;align-items:start;padding:8px 0 24px;position:relative}
.board.briefing{grid-template-columns:minmax(0,760px)}
.board.briefing .book{display:none}
@media (max-width:980px){.board{grid-template-columns:minmax(0,1fr);gap:18px}}

/* ---- the case file ---- */
.file{position:relative}
@media (min-width:981px){.board:not(.briefing) .file{position:sticky;top:12px}}
.file .paper{padding:18px 20px 20px}
.story{font-family:var(--serif);font-size:18.5px;line-height:1.55;margin:0 0 14px;max-width:62ch}
.incident{border-left:4px solid var(--cb);background:color-mix(in srgb,var(--cb) 7%,var(--manila-2));border-radius:4px 12px 12px 4px;padding:10px 14px;margin:0 0 16px}
.incident h2{font-size:14px;font-weight:600;color:var(--manila-soft);margin:0 0 2px;letter-spacing:.1px}
.incident p{margin:0;font-family:var(--serif);font-size:18px;line-height:1.45}
.people{list-style:none;padding:0;margin:0 0 4px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.people li{display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px}
.people .pt{width:76px;height:76px}
.people b{font-size:16px;line-height:1.15}
.people span{font-size:13px;color:var(--manila-soft);line-height:1.25}
@media (max-width:420px){.people .pt{width:60px;height:60px}}
@media (max-width:980px){.board:not(.briefing) .people{display:none}.story{font-size:17px}}
@media (max-width:420px){.mk{font-size:13.5px;padding:6px 5px}.chips{gap:5px}.who,.where{padding:10px 10px 12px}}
.clues-h{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin:18px 0 6px}
.clues-h h2{font-size:20px;margin:0;letter-spacing:-.3px}
.clues-h small{font-size:13px;color:var(--manila-soft)}
.clues{list-style:none;counter-reset:clue;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}
.clues li{counter-increment:clue}
.clues button{all:unset;box-sizing:border-box;display:grid;grid-template-columns:30px minmax(0,1fr);gap:8px;width:100%;padding:8px 10px;border-radius:10px;font-family:var(--serif);font-size:18px;line-height:1.4;cursor:pointer;color:var(--manila-ink)}
.clues button::before{content:counter(clue);font-family:var(--font);font-weight:800;font-size:15px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:var(--manila);color:var(--manila-ink);margin-top:1px}
@media (hover:hover){.clues button:hover{background:color-mix(in srgb,var(--manila) 60%,transparent)}}
.clues button:focus-visible{outline:3px solid var(--focus);outline-offset:0}
.clues button[aria-pressed="true"]{color:var(--manila-soft);text-decoration:line-through;text-decoration-thickness:1.5px;text-decoration-color:color-mix(in srgb,var(--manila-ink) 45%,transparent)}
.clues button[aria-pressed="true"]::before{background:transparent;box-shadow:inset 0 0 0 1.5px var(--manila-edge);color:var(--manila-soft)}
.clues button.cite{background:color-mix(in srgb,var(--bloom) 18%,var(--manila-2));box-shadow:inset 3px 0 0 var(--bloom)}
.start-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:18px}
.start-row p{margin:0;font-size:15px;color:var(--manila-soft);flex:1 1 220px}
.lesson{margin:0 0 14px;padding:10px 14px;border-radius:12px;background:var(--cb-tint);color:var(--ink);font-size:16px}
.lesson b{color:var(--cb-ink)}

/* stamp on a closed case */
.stamp{position:absolute;right:14px;top:-40px;z-index:3;transform:rotate(-9deg);border:4px double var(--cb);color:var(--cb);border-radius:10px;padding:6px 14px 5px;font-weight:800;font-size:22px;letter-spacing:1.5px;text-transform:uppercase;background:color-mix(in srgb,var(--manila-2) 70%,transparent);pointer-events:none;line-height:1.1;text-align:center}
.stamp small{display:block;font-size:11px;letter-spacing:.6px;font-weight:600}
.stamp.revealed{border-color:var(--ink-soft);color:var(--ink-soft)}
.stamp.landing{animation:stamp .42s cubic-bezier(.2,1.4,.4,1) both}
@keyframes stamp{0%{transform:rotate(-16deg) scale(1.9);opacity:0}60%{opacity:1}100%{transform:rotate(-9deg) scale(1);opacity:1}}

/* ---- the notebook ---- */
.book{display:flex;flex-direction:column;gap:12px;min-width:0}
.bar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(6px);padding:8px 0;margin:-8px 0 0}
.bar .time{font-variant-numeric:tabular-nums;font-weight:600;font-size:16px;min-width:52px;color:var(--ink-soft)}
.bar .sp{flex:1}
.pen{display:inline-flex;background:var(--paper-2);border-radius:12px;padding:3px}
.pen button{border:0;background:transparent;border-radius:9px;padding:7px 11px;font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;color:var(--ink-soft);min-height:38px}
.pen button[aria-pressed="true"]{background:var(--card);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.15)}
.pen svg{width:16px;height:16px}
.bar .btn{min-height:42px;padding:8px 12px}
@media (max-width:520px){.bar .lbl{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.pen button{padding:7px 10px}}
.nb-h{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin:2px 0 -4px}
.nb-h h2{font-size:20px;margin:0;letter-spacing:-.3px}
.nb-h small{font-size:13px;color:var(--ink-soft)}
.who{background:var(--card);border-radius:18px;padding:12px 14px 14px;box-shadow:0 1px 0 var(--line)}
.who-h{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.who-h .pt{width:42px;height:42px}
.who-h b{font-size:17px;line-height:1.1}
.who-h span{display:block;font-size:13px;color:var(--ink-soft)}
.who-h .sum{margin-left:auto;font-size:13px;color:var(--cb-ink);font-weight:600;text-align:right;line-height:1.25}
.mrow{display:grid;grid-template-columns:62px minmax(0,1fr);gap:8px;align-items:center;margin-top:6px}
.mrow>span{font-size:13px;font-weight:600;color:var(--ink-soft)}
.chips{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
@media (max-width:520px){.mrow{grid-template-columns:1fr;gap:3px}}
.mk{position:relative;border:2px solid var(--line);background:var(--paper);border-radius:11px;min-height:44px;padding:6px 8px;font-weight:600;font-size:14.5px;line-height:1.15;text-align:center;justify-content:center;color:var(--ink);touch-action:manipulation;display:flex;align-items:center;overflow-wrap:break-word;hyphens:auto;min-width:0}
@media (hover:hover){.mk:hover{border-color:color-mix(in srgb,var(--ink) 30%,transparent)}}
.mk[data-v="1"]{background:var(--cb);border-color:var(--cb);color:var(--cb-on)}
.mk[data-v]::before{content:"";position:absolute;left:6px;top:6px;width:9px;height:5px;border-left:2.5px solid currentColor;border-bottom:2.5px solid currentColor;transform:rotate(-45deg)}
.mk[data-v="-1"]{background:transparent;color:var(--ink-soft);text-decoration:line-through;text-decoration-thickness:1.5px;border-style:dashed}
.mk[data-v="-1"]::before{border:0;width:10px;height:10px;left:5px;top:5px;transform:none;background:linear-gradient(45deg,transparent 40%,currentColor 40% 60%,transparent 60%),linear-gradient(-45deg,transparent 40%,currentColor 40% 60%,transparent 60%)}
.mk.dim:not([data-v]){color:var(--ink-soft);opacity:.62}
.mk.bad{border-color:var(--bad);box-shadow:0 0 0 2px var(--bad)}
.mk.hl{outline:3px solid var(--bloom);outline-offset:2px;animation:hl 1.2s ease-in-out 2}
@keyframes hl{50%{outline-offset:5px}}
.who .warn,.where .warn{margin:8px 0 0;font-size:14px;color:var(--bad);font-weight:600;background:var(--bad-bg);border-radius:10px;padding:6px 10px}
.where{background:var(--card);border-radius:18px;padding:12px 14px 14px}
.where h3{font-size:16px;margin:0 0 2px}
.where p.h{margin:0 0 4px;font-size:13px;color:var(--ink-soft)}
.where .mrow{grid-template-columns:110px minmax(0,1fr)}
@media (max-width:520px){.where .mrow{grid-template-columns:1fr}}

/* notes from the casebook: hints, coach, messages */
.note{border-radius:16px;padding:12px 14px;background:color-mix(in srgb,var(--bloom) 12%,var(--card));border-left:5px solid var(--bloom);display:flex;flex-direction:column;gap:8px}
.note p{margin:0;font-family:var(--serif);font-size:17px;line-height:1.5}
.note .k{font-family:var(--font);font-weight:600;font-size:14px;color:var(--ink-soft)}
.note .row{display:flex;gap:8px;flex-wrap:wrap}
.note .btn{min-height:40px;padding:7px 12px;font-size:15px}
.note.coach{background:var(--cb-tint);border-left-color:var(--cb)}
.note.msg{background:var(--card);border-left-color:var(--ink-soft)}
.note.wrong{background:var(--card);border-left-color:var(--brass)}
.closer{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.closer p{margin:0;font-size:14px;color:var(--ink-soft);flex:1 1 200px}

/* closing the case: choose who */
.accuse{background:var(--manila-2);color:var(--manila-ink);border-radius:18px;padding:14px 16px 16px;box-shadow:var(--folder-shadow)}
.accuse h2{margin:0 0 4px;font-size:22px;letter-spacing:-.4px}
.accuse>p{margin:0 0 10px;font-family:var(--serif);font-size:17px}
.suspects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:0 0 12px;border:0;padding:0}
.suspects legend{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.suspects label{position:relative;display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 6px;border-radius:14px;background:var(--manila);cursor:pointer;text-align:center;font-weight:600;box-shadow:inset 0 0 0 2px transparent}
.suspects input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.suspects .pt{width:54px;height:54px}
.suspects label:has(input:checked){box-shadow:inset 0 0 0 3px var(--cb);background:color-mix(in srgb,var(--cb) 14%,var(--manila-2))}
.suspects label:has(input:focus-visible){outline:3px solid var(--focus);outline-offset:2px}
.accuse .row{display:flex;gap:8px;flex-wrap:wrap}

/* paused / error / solved */
.paused{position:absolute;inset:0;z-index:8;display:flex;align-items:flex-start;justify-content:center;padding-top:80px;background:color-mix(in srgb,var(--paper) 82%,transparent);backdrop-filter:blur(8px);border-radius:18px}
.paused .box{background:var(--card);border-radius:20px;padding:20px 22px;box-shadow:var(--lift);text-align:center;max-width:340px}
.paused h2{margin:0 0 6px;font-size:26px}
.paused p{margin:0 0 14px;color:var(--ink-soft)}
.board.is-paused .file .clues,.board.is-paused .book .who,.board.is-paused .book .where{filter:blur(7px)}
.err{background:var(--card);border-radius:18px;padding:18px 20px;max-width:620px;box-shadow:var(--lift)}
.err h2{margin:0 0 6px}
.err p{color:var(--ink-soft);margin:0 0 12px}
.report{background:var(--card);border-radius:20px;padding:18px 20px 20px;display:flex;flex-direction:column;gap:14px}
.report h2{margin:0;font-size:30px;letter-spacing:-.8px;line-height:1.05}
.report .stats{display:flex;gap:8px;flex-wrap:wrap}
.report .stats span{background:var(--paper-2);border-radius:999px;padding:4px 12px;font-weight:600;font-size:14px}
.report .stats span.ok{background:var(--good);color:#fff}
.report .verdict{font-family:var(--serif);font-size:19px;line-height:1.45;margin:0}
.report .epi{font-family:var(--serif);font-size:18px;line-height:1.5;margin:0;background:var(--manila-2);color:var(--manila-ink);border-radius:12px;padding:12px 14px}
.report h3{margin:4px 0 0;font-size:18px}
.proof{margin:0;padding:0;list-style:none;counter-reset:pf;display:flex;flex-direction:column;gap:8px}
.proof li{counter-increment:pf;display:grid;grid-template-columns:28px minmax(0,1fr);gap:8px;font-family:var(--serif);font-size:16.5px;line-height:1.5}
.proof li::before{content:counter(pf);font-family:var(--font);font-weight:800;font-size:13px;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:var(--paper-2);margin-top:1px}
.report .row{display:flex;gap:8px;flex-wrap:wrap}
.report .next{border-top:1px solid var(--line);padding-top:12px;font-size:15px;color:var(--ink-soft)}
.report .next a{color:var(--cb-ink);font-weight:600}
.answer{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;list-style:none;padding:0;margin:0}
.answer li{background:var(--paper-2);border-radius:12px;padding:8px 4px;text-align:center;font-size:14px;line-height:1.3;overflow-wrap:break-word;min-width:0}
.answer strong{font-size:13px;color:var(--cb-ink)}
.answer .pt{width:40px;height:40px;margin:0 auto 4px}
.answer b{display:block;font-size:15px}
.answer li.culprit{box-shadow:inset 0 0 0 2px var(--cb)}