/* The Ninth — working demo. Plain CSS, no build step. */

:root {
  --paper: #F5F1E8;
  --paperDeep: #EDE6D6;
  --paperLight: #FBF8F1;
  --ink: #1A1613;
  --charcoal: #1a1512;
  --inkMuted: #5C544A;
  --inkFaint: #8A8074;
  --accent: #7A2E2B;
  --accentSoft: #9C4844;
  --rule: #D9CFB9;
  --ruleDark: #3A322B;
  --creamMuted: rgba(245, 241, 232, 0.68);
  --creamFaint: rgba(245, 241, 232, 0.42);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.serif { font-family: 'Instrument Serif', serif; font-weight: 400; letter-spacing: -0.01em; }
.mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.faint { color: var(--inkFaint); }
.accent { color: var(--accent); }
.container { max-width: 1160px; margin: 0 auto; padding: 0 32px; }
.rule { height: 1px; background: var(--rule); border: 0; margin: 24px 0; }
.rule-dark { height: 1px; background: var(--ruleDark); border: 0; margin: 28px 0; }

:focus-visible { outline: 2px solid var(--accentSoft); outline-offset: 2px; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Nav ---------- */
nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(26, 21, 18, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ruleDark);
}
nav .inner {
  max-width: 1160px; margin: 0 auto; padding: 18px 32px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
nav .brand { text-decoration: none; color: var(--paper); display: flex; align-items: baseline; }
nav .wordmark { font-family: 'Instrument Serif', serif; font-size: 22px; }
nav .est {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  color: var(--creamFaint); letter-spacing: 1.5px; margin-left: 10px;
}
nav .links { display: flex; gap: 26px; flex-wrap: wrap; }
nav .links a { color: var(--creamMuted); text-decoration: none; font-size: 13px; transition: color 0.2s; }
nav .links a:hover { color: var(--paper); }
@media (max-width: 720px) {
  nav .inner { flex-direction: column; align-items: flex-start; gap: 10px; padding: 14px 24px; }
  nav .links { gap: 18px; }
}

/* ---------- Dark sections ---------- */
.dark { background: var(--charcoal); color: var(--paper); }
.dark .faint { color: var(--creamFaint); }
.dark .intro, .dark .lede, .dark .prompt-body, .dark .small-note { color: var(--creamMuted); }
.dark h1, .dark h2 { color: var(--paper); }

/* ---------- Hero ---------- */
.hero { padding: 110px 0 96px; }
.hero h1 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(46px, 7.5vw, 92px);
  line-height: 1.02; letter-spacing: -0.02em; margin-top: 30px;
}
.hero h1 .flip { display: block; font-style: italic; color: var(--accentSoft); }
.lede { font-size: 18px; max-width: 660px; margin-top: 30px; line-height: 1.6; color: var(--creamMuted); }

.arc { margin-top: 64px; max-width: 760px; }
.arc-line { height: 1px; background: linear-gradient(to right, var(--ruleDark), var(--accentSoft)); }
.arc-stops { display: flex; justify-content: space-between; margin-top: -5px; }
.arc-stop { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.arc-stop .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--paper); }
.arc-stop .dot.sealed { background: var(--accentSoft); }

.hero-meta { display: flex; gap: 48px; margin-top: 56px; flex-wrap: wrap; }
.hero-meta div span:first-child {
  display: block; font-family: 'JetBrains Mono', monospace; font-size: 10px;
  color: var(--creamFaint); letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 8px;
}
.hero-meta div span:last-child { font-size: 20px; }

/* ---------- Sections ---------- */
.section { padding: 100px 0; border-top: 1px solid var(--rule); }
.section.dark { border-top: 0; }
.section h2 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.08; letter-spacing: -0.015em; max-width: 880px; margin-top: 18px;
}
.section h2 em { font-style: italic; color: var(--accent); }
.section.dark h2 em { color: var(--accentSoft); }
.intro { font-size: 17px; color: var(--inkMuted); max-width: 620px; margin-top: 22px; line-height: 1.65; }

.two-col { display: grid; grid-template-columns: 5fr 6fr; gap: 56px; margin-top: 16px; align-items: start; }
@media (max-width: 880px) { .two-col { grid-template-columns: 1fr; gap: 40px; } }

/* ---------- Panels & forms ---------- */
.panel {
  background: var(--paperLight);
  border: 1px solid var(--rule);
  padding: 28px;
}
.panel-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 16px; }
.panel h3 { font-size: 30px; line-height: 1.15; margin-bottom: 10px; }
.prompt-body { color: var(--inkMuted); font-size: 15px; line-height: 1.65; margin-bottom: 20px; }

.panel label.mono { display: block; margin: 18px 0 8px; }
textarea, input[type="text"] {
  width: 100%;
  font-family: 'Instrument Serif', serif;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--rule);
  padding: 14px 16px;
  resize: vertical;
  transition: border-color 0.2s;
}
textarea::placeholder, input::placeholder { color: var(--inkFaint); font-style: italic; }
textarea:focus, input[type="text"]:focus { border-color: var(--accentSoft); outline: none; }

.panel-foot { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 20px; flex-wrap: wrap; }

.btn {
  font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--paper); background: var(--ink);
  border: 1px solid var(--ink);
  padding: 12px 20px; cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn:hover { background: var(--accent); border-color: var(--accent); }
.btn-ghost { background: transparent; color: inherit; border-color: currentColor; opacity: 0.85; }
.btn-ghost:hover { background: transparent; color: var(--accentSoft); border-color: var(--accentSoft); opacity: 1; }
.dark .btn { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.dark .btn:hover { background: var(--accentSoft); color: var(--paper); border-color: var(--accentSoft); }

/* ---------- Capture ---------- */
.week-control { margin-top: 44px; max-width: 340px; }
.week-stepper { display: flex; align-items: center; gap: 20px; margin: 14px 0 18px; }
.week-stepper button {
  width: 44px; height: 44px; font-size: 20px; line-height: 1;
  font-family: 'JetBrains Mono', monospace;
  background: transparent; color: var(--ink);
  border: 1px solid var(--rule); cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.week-stepper button:hover { border-color: var(--accent); color: var(--accent); }
.week-readout { display: flex; align-items: baseline; gap: 10px; }
.week-readout .serif { font-size: 54px; line-height: 1; min-width: 62px; text-align: center; }

input[type="range"] {
  width: 100%; appearance: none; -webkit-appearance: none;
  height: 2px; background: var(--rule); cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none; -webkit-appearance: none;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--paperLight);
  box-shadow: 0 0 0 1px var(--accent);
}
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--paperLight);
  box-shadow: 0 0 0 1px var(--accent);
}
.range-ends { display: flex; justify-content: space-between; margin-top: 8px; }

.entries-strip { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.entry-chip {
  display: flex; justify-content: space-between; align-items: baseline; gap: 16px;
  padding: 12px 16px; border: 1px solid var(--rule); background: var(--paper);
  animation: chipIn 0.4s ease;
}
@keyframes chipIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.entry-chip .t { font-family: 'Instrument Serif', serif; font-size: 16px; }

/* ---------- Letters ---------- */
.letters-grid { grid-template-columns: 6fr 5fr; }
@media (max-width: 880px) { .letters-grid { grid-template-columns: 1fr; } }
.seal-choice { border: 0; margin-top: 20px; }
.seal-options { display: flex; gap: 10px; margin-top: 8px; }
.seal-options label { flex: 1; cursor: pointer; }
.seal-options input { position: absolute; opacity: 0; }
.seal-options span {
  display: block; text-align: center; padding: 10px 0;
  font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 1.2px; text-transform: uppercase;
  border: 1px solid var(--rule); color: var(--inkMuted);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.seal-options input:checked + span { border-color: var(--accent); color: var(--accent); background: var(--paper); }
.seal-options input:focus-visible + span { outline: 2px solid var(--accentSoft); outline-offset: 2px; }

.timeline-label { margin-bottom: 8px; }
.letter-timeline { list-style: none; border-left: 1px solid var(--rule); margin-top: 12px; }
.letter-timeline li { position: relative; padding: 0 0 28px 28px; }
.letter-timeline li::before {
  content: ""; position: absolute; left: -5px; top: 8px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent);
}
.letter-timeline li.open-letter::before { background: var(--inkFaint); }
.letter-timeline .lt-meta { display: flex; gap: 14px; align-items: baseline; flex-wrap: wrap; }
.letter-timeline .lt-title { font-family: 'Instrument Serif', serif; font-size: 24px; line-height: 1.2; margin-top: 4px; }
.letter-timeline .lt-sealed {
  margin-top: 8px; padding: 10px 14px;
  border: 1px dashed var(--rule); background: var(--paperDeep);
  color: var(--inkMuted); font-size: 13px; font-style: italic;
}
.letter-timeline .lt-del {
  background: none; border: 0; cursor: pointer;
  font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 1px;
  color: var(--inkFaint); text-transform: uppercase; padding: 0;
}
.letter-timeline .lt-del:hover { color: var(--accent); }
.letter-empty { color: var(--inkFaint); font-style: italic; padding: 8px 0 0 28px; }

/* ---------- Choir ---------- */
.choir-grid { display: grid; grid-template-columns: 5fr 6fr; gap: 56px; margin-top: 56px; align-items: start; }
@media (max-width: 880px) { .choir-grid { grid-template-columns: 1fr; gap: 44px; } }

.choir-invite { border: 1px solid var(--ruleDark); padding: 28px; background: rgba(245, 241, 232, 0.03); }
.invite-row { display: flex; gap: 10px; margin: 14px 0 12px; align-items: stretch; }
.invite-link {
  flex: 1; display: flex; align-items: center;
  font-family: 'JetBrains Mono', monospace; font-size: 13px; letter-spacing: 0.5px;
  padding: 12px 14px; border: 1px dashed var(--ruleDark); color: var(--paper);
  overflow-x: auto; white-space: nowrap;
}
.small-note { font-size: 14px; margin: 10px 0 16px; line-height: 1.6; }
.choir-invite .btn { width: 100%; margin-top: 4px; }
.choir-invite .invite-row .btn { width: auto; margin-top: 0; }

.list-title { margin-bottom: 12px; }
.choir-lists > div + div { margin-top: 40px; }
.voice-list { display: flex; flex-direction: column; gap: 12px; }
.voice-card { border: 1px solid var(--ruleDark); padding: 18px 20px; animation: chipIn 0.4s ease; }
.voice-card .vc-top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.voice-card .vc-name { font-family: 'Instrument Serif', serif; font-size: 22px; }
.voice-card .vc-role { margin-top: 2px; }
.voice-card .vc-quote { margin-top: 10px; font-size: 14px; color: var(--creamMuted); font-style: italic; line-height: 1.55; }
.voice-card .vc-actions { display: flex; gap: 10px; margin-top: 14px; }
.voice-card .vc-actions .btn { padding: 9px 16px; font-size: 10px; }
.badge-received { color: var(--creamFaint); }
.badge-pending { color: var(--accentSoft); }
.voice-empty { color: var(--creamFaint); font-style: italic; font-size: 14px; }

/* ---------- Archive ---------- */
.scrubber { margin-top: 56px; position: relative; }
.scrub-track { display: flex; justify-content: space-between; align-items: flex-end; height: 34px; margin-bottom: 10px; }
.scrub-track .wk {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 4px;
}
.scrub-track .wk .tick { width: 1px; height: 8px; background: var(--rule); }
.scrub-track .wk.major .tick { height: 14px; background: var(--inkFaint); }
.scrub-track .wk .cnt { display: flex; gap: 2px; }
.scrub-track .wk .cnt i { width: 4px; height: 4px; border-radius: 50%; background: var(--accent); }
.scrub-track .wk.sealed-cell .tick { background: var(--accent); height: 14px; }
.scrub-track .wk.all-cell .tick { height: 14px; background: var(--inkFaint); }
.scrub-legend { display: flex; justify-content: space-between; margin-top: 10px; }
.scrub-readout { font-size: 26px; margin-top: 18px; min-height: 34px; }

.archive-table { margin-top: 36px; border: 1px solid var(--rule); background: var(--paperLight); }
.at-row {
  display: grid; grid-template-columns: 70px 110px 1fr 150px 170px;
  gap: 12px; padding: 14px 20px; border-bottom: 1px solid var(--rule);
  align-items: baseline;
  transition: background 0.25s, opacity 0.25s;
}
.at-row:not(.at-head) { animation: chipIn 0.35s ease; }
.at-head { background: var(--paperDeep); }
.at-row > * { min-width: 0; overflow-wrap: break-word; }
.at-row .e-title { font-family: 'Instrument Serif', serif; font-size: 18px; }
.at-row .e-title .ex-tag { font-family: 'JetBrains Mono', monospace; font-size: 9px; letter-spacing: 1px; color: var(--inkFaint); text-transform: uppercase; margin-left: 8px; }
.at-row .mono { color: var(--inkFaint); }
.at-row .rel-sealed { color: var(--accent); }
.at-row.dim { opacity: 0.28; }
.at-row.hit { background: var(--paperDeep); }
.at-empty { padding: 20px; color: var(--inkFaint); font-style: italic; }
@media (max-width: 760px) {
  .at-row { grid-template-columns: 72px 1fr 104px; gap: 10px; padding: 14px 16px; }
  .at-row .c-year, .at-row .c-type { display: none; }
}

.at-sealed-band {
  display: flex; flex-direction: column; gap: 6px;
  padding: 26px 20px;
  background: var(--charcoal); color: var(--paper);
}
.at-sealed-band .mono { color: var(--accentSoft); }
.at-sealed-band .sealed-note { font-size: 22px; font-style: italic; color: var(--creamMuted); }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--rule); padding: 48px 0 64px; background: var(--paperDeep); }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; }
.footer-inner .wordmark { font-size: 22px; }
.footer-note { margin-top: 10px; }
.footer-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Modal ---------- */
.modal-backdrop[hidden] { display: none; }
.modal-backdrop {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(26, 21, 18, 0.72);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; overflow-y: auto;
  animation: fadeIn 0.25s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  position: relative; width: 100%; max-width: 560px;
  max-height: calc(100vh - 48px); overflow-y: auto;
  animation: chipIn 0.3s ease;
}
.modal-close {
  position: absolute; top: 14px; right: 16px;
  background: none; border: 0; cursor: pointer;
  font-size: 26px; line-height: 1; color: var(--inkFaint);
}
.modal-close:hover { color: var(--accent); }
.modal h3 { font-size: 34px; margin: 12px 0 10px; }
.contrib-prompt { font-size: 24px; line-height: 1.2; margin: 8px 0 6px; }

.contrib-tabs { display: flex; gap: 0; margin: 18px 0 16px; border: 1px solid var(--rule); }
.tab {
  flex: 1; padding: 10px 0; cursor: pointer; background: transparent; border: 0;
  font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--inkMuted); transition: background 0.2s, color 0.2s;
}
.tab.active { background: var(--ink); color: var(--paper); }

.recorder { display: flex; align-items: center; gap: 20px; padding: 18px; border: 1px solid var(--rule); background: var(--paper); }
.rec-btn {
  width: 56px; height: 56px; border-radius: 50%; cursor: pointer;
  border: 1px solid var(--accent); background: transparent;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s;
}
.rec-btn:hover { background: rgba(122, 46, 43, 0.08); }
.rec-dot { width: 18px; height: 18px; border-radius: 50%; background: var(--accent); transition: border-radius 0.2s; }
.rec-btn.recording .rec-dot { border-radius: 3px; animation: pulse 1.2s ease infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.rec-time { font-size: 30px; line-height: 1.1; }
#recStatus { color: var(--inkMuted); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 28px; z-index: 200;
  transform: translate(-50%, 80px);
  background: var(--ink); color: var(--paper);
  padding: 12px 22px; font-size: 11px;
  opacity: 0; transition: transform 0.35s ease, opacity 0.35s ease;
  pointer-events: none; max-width: 90vw; text-align: center;
}
.toast.show { transform: translate(-50%, 0); opacity: 1; }