/* ==========================================================================
   Cold Case Files — shared styles
   UI chrome (desk, folder, answer key) + evidence document styles + print.
   ========================================================================== */

:root {
  --desk: #1d1a17;
  --desk-2: #2a2520;
  --ink: #1f1b16;
  --ink-soft: #4a4238;
  --paper: #f6f1e4;
  --paper-2: #efe7d3;
  --paper-line: #d9cfb8;
  --manila: #d8b878;
  --manila-dark: #b8954f;
  --red: #a3241b;
  --red-soft: #c9473c;
  --blue-ink: #1d3a7a;
  --green: #2f6b3a;
  --ui-text: #ece4d4;
  --ui-muted: #a89c88;
  --focus: #f0c560;
  --radius: 6px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .45);
  --font-ui: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-type: "Special Elite", "Courier Prime", "Courier New", monospace;
  --font-mono: "Courier Prime", "Courier New", monospace;
  --font-hand: "Caveat", "Comic Sans MS", cursive;
  --font-news: "Playfair Display", Georgia, serif;
  --font-stamp: "Oswald", Impact, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  color: var(--ui-text);
  background:
    radial-gradient(ellipse at 30% 0%, rgba(255, 220, 160, .08), transparent 60%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.012) 0 2px, transparent 2px 7px),
    var(--desk);
  line-height: 1.5;
}

a { color: var(--focus); }
a:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }

/* ---------- top bar ---------- */
.topbar {
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.25);
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(6px);
}
.topbar .wrap { display: flex; align-items: center; gap: 16px; min-height: 56px; flex-wrap: wrap; }
.brand {
  font-family: var(--font-stamp); letter-spacing: .12em; text-transform: uppercase;
  color: var(--ui-text); text-decoration: none; font-size: 18px; display: flex; align-items: center; gap: 10px;
}
.brand .badge-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--red-soft); box-shadow: 0 0 0 3px rgba(201,71,60,.25); }
.topnav { display: flex; gap: 6px; margin-left: auto; flex-wrap: wrap; }
.topnav a, .btn {
  display: inline-flex; align-items: center; gap: 8px;
  font: 600 14px/1 var(--font-ui); padding: 10px 14px; border-radius: var(--radius);
  color: var(--ui-text); text-decoration: none; border: 1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.04);
  cursor: pointer;
}
.topnav a:hover, .btn:hover { background: rgba(255,255,255,.1); }
.topnav a[aria-current="page"] { background: var(--manila); color: var(--ink); border-color: var(--manila); }
.btn-primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-soft); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-ghost { background: transparent; }

/* ---------- landing ---------- */
.hero { padding: 56px 0 24px; }
.hero h1 { font-family: var(--font-type); font-weight: 400; font-size: clamp(32px, 6vw, 56px); margin: 0 0 12px; letter-spacing: .02em; }
.hero p { color: var(--ui-muted); max-width: 680px; font-size: 18px; margin: 0; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 32px 0; }
.step { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); border-radius: 10px; padding: 16px; }
.step b { display: block; font-family: var(--font-stamp); letter-spacing: .08em; text-transform: uppercase; color: var(--manila); margin-bottom: 6px; }
.step p { margin: 0; color: var(--ui-muted); font-size: 15px; }

.case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; padding: 8px 0 64px; }
.case-card {
  position: relative; display: block; text-decoration: none; color: var(--ink);
  background: linear-gradient(180deg, var(--manila) 0%, #cfae6d 100%);
  border-radius: 4px 14px 6px 6px; padding: 28px 22px 22px; box-shadow: var(--shadow);
  transition: transform .15s ease;
}
.case-card::before {
  content: ""; position: absolute; top: -14px; left: 0; width: 42%; height: 18px;
  background: var(--manila); border-radius: 8px 8px 0 0;
}
.case-card:hover { transform: translateY(-4px) rotate(-.4deg); }
.case-card .no { font-family: var(--font-mono); font-size: 13px; letter-spacing: .1em; }
.case-card h2 { font-family: var(--font-type); font-weight: 400; margin: 6px 0 8px; font-size: 26px; }
.case-card p { margin: 0 0 14px; color: #3d3222; }
.case-card .meta { display: flex; gap: 8px; flex-wrap: wrap; font-size: 13px; }
.chip { display: inline-block; padding: 3px 9px; border-radius: 99px; background: rgba(0,0,0,.12); font-weight: 600; font-size: 12px; }
.stamp-unsolved {
  position: absolute; right: 14px; top: 14px; transform: rotate(8deg);
  font-family: var(--font-stamp); color: var(--red); border: 3px solid var(--red); padding: 2px 8px; letter-spacing: .1em; opacity: .85;
}

/* ---------- case viewer layout ---------- */
.case-head { padding: 24px 0 8px; display: flex; flex-wrap: wrap; align-items: end; gap: 12px 24px; }
.case-head h1 { font-family: var(--font-type); font-weight: 400; margin: 0; font-size: clamp(26px, 4vw, 38px); }
.case-head .no { font-family: var(--font-mono); color: var(--ui-muted); letter-spacing: .08em; }
.case-head .actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }

.objective-card {
  background: #fffbe8; color: var(--ink); border-radius: 4px; padding: 16px 18px 16px 22px; margin: 16px 0 20px;
  box-shadow: var(--shadow); position: relative; border-left: 6px solid var(--red);
  transform: rotate(-.3deg);
}
.objective-card .label { font-family: var(--font-stamp); letter-spacing: .14em; text-transform: uppercase; color: var(--red); font-size: 14px; }
.objective-card h2 { margin: 2px 0 6px; font-family: var(--font-type); font-weight: 400; font-size: 22px; }
.objective-card p { margin: 0 0 10px; font-family: var(--font-mono); font-size: 16px; }
.objective-card.closed { border-left-color: var(--green); }
.objective-card.closed .label { color: var(--green); }

.layout { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 24px; align-items: start; padding-bottom: 64px; }
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } }

.folder {
  background: var(--manila); color: var(--ink); border-radius: 4px 12px 6px 6px; padding: 14px; box-shadow: var(--shadow);
  position: sticky; top: 72px; max-height: calc(100vh - 88px); overflow: auto;
}
@media (max-width: 900px) { .folder { position: static; max-height: none; } }
.envelope { margin-bottom: 14px; }
.envelope h3 {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  font-family: var(--font-stamp); text-transform: uppercase; letter-spacing: .1em; font-size: 15px; margin: 4px 0 8px;
  padding-bottom: 6px; border-bottom: 2px dashed rgba(0,0,0,.25);
}
.envelope.sealed { opacity: .75; }
.envelope.sealed .sealed-note { font-family: var(--font-mono); font-size: 14px; background: rgba(0,0,0,.08); padding: 10px; border-radius: 4px; }
.seal { font-size: 11px; padding: 2px 6px; border-radius: 3px; background: var(--red); color: #fff; letter-spacing: .08em; }
.seal.open { background: var(--green); }
.exhibit-list { list-style: none; margin: 0; padding: 0; }
.exhibit-list button {
  width: 100%; text-align: left; display: grid; grid-template-columns: 52px 1fr; gap: 8px; align-items: baseline;
  background: var(--paper); color: var(--ink); border: 0; border-radius: 3px; padding: 9px 10px; margin-bottom: 5px;
  font: 15px/1.3 var(--font-mono); cursor: pointer; box-shadow: 0 1px 0 rgba(0,0,0,.15);
}
.exhibit-list button:hover { background: #fff; }
.exhibit-list button[aria-current="true"] { outline: 3px solid var(--red); }
.exhibit-list .num { font-weight: 700; color: var(--red); }
.exhibit-list .new { font-family: var(--font-ui); font-size: 10px; font-weight: 700; color: #fff; background: var(--red); padding: 1px 5px; border-radius: 3px; margin-left: 6px; vertical-align: 2px; }

.webdir { background: rgba(0,0,0,.08); border-radius: 4px; padding: 10px; }
.webdir a { color: var(--blue-ink); font-family: var(--font-mono); font-weight: 700; }
.webdir p { margin: 2px 0 10px; font-size: 13px; }

.reader { min-width: 0; }
.reader-empty {
  border: 2px dashed rgba(255,255,255,.15); border-radius: 10px; padding: 48px 24px; text-align: center; color: var(--ui-muted);
  font-family: var(--font-mono);
}
.reader-nav { display: flex; justify-content: space-between; gap: 8px; margin: 12px 0; }

/* ---------- answer key ---------- */
.answer-wrap { max-width: 820px; margin: 0 auto; padding: 24px 16px 80px; }
.progress { display: flex; gap: 8px; margin: 16px 0 24px; flex-wrap: wrap; }
.progress .p { flex: 1 1 140px; padding: 10px 12px; border-radius: 6px; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); font-size: 14px; }
.progress .p b { display: block; font-family: var(--font-stamp); letter-spacing: .1em; text-transform: uppercase; font-size: 12px; color: var(--ui-muted); }
.progress .p.done { border-color: var(--green); background: rgba(47,107,58,.25); }
.progress .p.current { border-color: var(--focus); }
.panel { background: var(--paper); color: var(--ink); border-radius: 6px; padding: 22px; box-shadow: var(--shadow); margin-bottom: 20px; }
.panel h2 { font-family: var(--font-type); font-weight: 400; margin: 0 0 6px; }
.panel .prompt { font-family: var(--font-mono); font-size: 17px; margin: 0 0 18px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 700; margin-bottom: 6px; }
.field select, .field input {
  width: 100%; font: 16px var(--font-ui); padding: 11px 12px; border-radius: 6px; border: 1px solid #b7ab92; background: #fff; color: var(--ink);
}
.feedback { margin-top: 16px; padding: 14px; border-radius: 6px; font-weight: 600; }
.feedback.bad { background: #f6d9d4; color: #6b130c; border: 1px solid #e3a59c; }
.feedback.good { background: #d9ecd9; color: #1d4a26; border: 1px solid #9fcca6; }
.hint-box { margin-top: 16px; }
.hint { background: #fff6cf; border-left: 4px solid var(--focus); padding: 10px 12px; margin: 8px 0; font-family: var(--font-mono); }
.solved-list .solved { border-left: 4px solid var(--green); padding: 8px 12px; margin: 10px 0; background: rgba(47,107,58,.08); }
.solved-list h3 { margin: 0 0 4px; font-size: 16px; }
.solved-list p { margin: 0; font-size: 15px; }
.panel .btn:not(.btn-primary) { color: var(--ink); border-color: #b7ab92; background: #fff; }
.panel .btn:not(.btn-primary):hover { background: var(--paper-2); }
.muted { color: var(--ui-muted); }
.panel .muted { color: var(--ink-soft); }

.footer { color: var(--ui-muted); font-size: 13px; padding: 24px 0 40px; border-top: 1px solid rgba(255,255,255,.08); }

/* ==========================================================================
   Evidence documents. Exhibit HTML in cases/<id>/documents uses these classes.
   ========================================================================== */
.doc {
  background: var(--paper); color: var(--ink); padding: clamp(18px, 4vw, 44px); border-radius: 2px;
  box-shadow: var(--shadow); font-family: var(--font-mono); font-size: 16px; line-height: 1.55; position: relative;
  background-image: linear-gradient(transparent 0, transparent), radial-gradient(circle at 80% 10%, rgba(160,130,60,.08), transparent 40%);
  overflow-wrap: anywhere;
}
.doc + .doc { margin-top: 24px; }
.doc h1, .doc h2, .doc h3 { font-family: var(--font-type); font-weight: 400; line-height: 1.2; }
.doc h1 { font-size: 26px; margin: 0 0 4px; }
.doc h2 { font-size: 20px; margin: 22px 0 8px; }
.doc h3 { font-size: 17px; margin: 16px 0 6px; }
.doc p { margin: 0 0 12px; }
.doc .exhibit-tag {
  position: absolute; top: 14px; right: 14px; font: 700 13px var(--font-ui); background: #fff; border: 2px solid var(--ink);
  padding: 3px 8px; letter-spacing: .06em;
}
.doc .letterhead { border-bottom: 3px double var(--ink); padding-bottom: 10px; margin-bottom: 18px; padding-right: 70px; }
.doc .letterhead .org { font-family: var(--font-stamp); letter-spacing: .12em; text-transform: uppercase; font-size: 15px; }
.doc .letterhead .sub { font-size: 13px; color: var(--ink-soft); }
.doc .fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 0; border: 1px solid var(--ink); margin: 12px 0 18px; }
.doc .fields div { border: 1px solid rgba(0,0,0,.35); padding: 6px 8px; }
.doc .fields b { display: block; font: 700 11px var(--font-ui); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); }
.doc table { width: 100%; border-collapse: collapse; margin: 10px 0 18px; font-size: 15px; }
.doc th, .doc td { border: 1px solid rgba(0,0,0,.4); padding: 5px 7px; text-align: left; vertical-align: top; }
.doc th { background: rgba(0,0,0,.07); font: 700 12px var(--font-ui); text-transform: uppercase; letter-spacing: .04em; }
.doc .table-scroll { overflow-x: auto; }
.doc td.num, .doc th.num { text-align: right; white-space: nowrap; }
.doc .timeline td:first-child { white-space: nowrap; overflow-wrap: normal; width: 1%; }
.doc .stamp {
  display: inline-block; font-family: var(--font-stamp); text-transform: uppercase; letter-spacing: .12em;
  color: var(--red); border: 3px solid var(--red); padding: 2px 10px; transform: rotate(-6deg); opacity: .8; font-size: 18px;
}
.doc .stamp.blue { color: var(--blue-ink); border-color: var(--blue-ink); }
.doc .redact { background: #111; color: transparent; user-select: none; padding: 0 .2em; }
.doc .sig { font-family: var(--font-hand); font-size: 30px; color: var(--blue-ink); line-height: 1; }
.doc .hand { font-family: var(--font-hand); font-size: 24px; color: var(--blue-ink); line-height: 1.25; }
.doc .hand.red { color: var(--red); }
.doc .note-margin { font-family: var(--font-hand); color: var(--red); font-size: 22px; }
.doc .small { font-size: 13px; }
.doc hr { border: 0; border-top: 1px dashed rgba(0,0,0,.4); margin: 18px 0; }
.doc ul, .doc ol { padding-left: 22px; margin: 0 0 12px; }
.doc .two-col { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }

/* transcripts */
.doc .transcript p { margin: 0 0 10px; padding-left: 108px; text-indent: -108px; }
.doc .transcript .who { font-weight: 700; display: inline-block; width: 108px; text-indent: 0; }
.doc .transcript .action { font-style: italic; color: var(--ink-soft); padding-left: 0; text-indent: 0; }
@media (max-width: 560px) {
  .doc .transcript p { padding-left: 0; text-indent: 0; }
  .doc .transcript .who { display: block; width: auto; }
}

/* photos */
.doc .photos { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; margin: 16px 0; }
.doc .photo { background: #fff; padding: 10px 10px 14px; box-shadow: 0 4px 14px rgba(0,0,0,.25); transform: rotate(-.8deg); }
.doc .photo:nth-child(even) { transform: rotate(.9deg); }
.doc .photo svg { display: block; width: 100%; height: auto; background: #333; }
.doc .photo figcaption { font-family: var(--font-hand); font-size: 21px; color: var(--ink); line-height: 1.15; margin-top: 8px; }
.doc .figure svg { display: block; width: 100%; height: auto; }

/* handwritten / notebook paper */
.doc.notebook {
  background-color: #fdfbf3;
  background-image: repeating-linear-gradient(transparent 0 31px, #b9d3ea 31px 32px), linear-gradient(90deg, transparent 52px, #e6a3a3 52px 54px, transparent 54px);
  padding-left: 70px; line-height: 32px;
}
.doc.notebook .hand { line-height: 32px; font-size: 25px; }
.doc.notebook p { margin: 0 0 32px; }

/* newspaper clipping */
.doc.clipping { font-family: var(--font-news); background: #ece6d6; max-width: 720px; }
.doc.clipping .masthead { font-family: var(--font-news); font-weight: 900; font-size: 30px; text-align: center; border-bottom: 2px solid var(--ink); }
.doc.clipping .dateline { text-align: center; font: 12px var(--font-ui); letter-spacing: .1em; text-transform: uppercase; border-bottom: 1px solid var(--ink); padding: 4px 0; margin-bottom: 14px; }
.doc.clipping h1 { font-family: var(--font-news); font-weight: 900; font-size: 30px; }
.doc.clipping .byline { font: 12px var(--font-ui); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 10px; }
.doc.clipping .cols { columns: 2 260px; column-gap: 24px; text-align: justify; }

/* receipts / statements */
.doc.receipt { max-width: 380px; margin-left: auto; margin-right: auto; font-size: 14px; }

/* citation / form */
.doc.form { background: #fdf7d7; }

/* map & diagram */
.doc .legend { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 14px; margin-top: 8px; }

/* ==========================================================================
   Print: one exhibit per page, no chrome.
   ========================================================================== */
#print-area { display: none; }
@media print {
  @page { margin: 14mm; }
  body { background: #fff; color: #000; }
  .topbar, .folder, .reader, .objective-card .actions, .case-head .actions, .no-print, .footer { display: none !important; }
  #print-area { display: block; }
  .layout { display: block; }
  .doc, .objective-card { box-shadow: none; transform: none; }
  .doc { page-break-after: always; break-after: page; border: 1px solid #ccc; }
  .doc .photo { box-shadow: none; border: 1px solid #999; transform: none; break-inside: avoid; }
  .print-cover { page-break-after: always; break-after: page; color: #000; font-family: var(--font-type); }
}