/* ── Reset & base ──────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f5f4f0;
  --surface: #ffffff;
  --border: #e0ddd8;
  --text: #2c2b28;
  --muted: #888580;
  --accent: #4a6fa5;
  --accent-dark: #3a5a8a;
  --current: #eef2f8;
  --current-border: #4a6fa5;
  --seen: #f9f9f7;
  --unseen: #fafaf8;
  --urgent: #c0392b;
  --radius: 8px;
  --font: 'Georgia', serif;
  --font-ui: system-ui, -apple-system, sans-serif;
}

html { font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  min-height: 100vh;
}

.page { min-height: 100vh; }

h1, h2, h3 { font-family: var(--font); font-weight: normal; }
h1 { font-size: 1.8rem; }
h2 { font-size: 1.3rem; margin-bottom: 1rem; }
h3 { font-size: 1.1rem; margin: 1rem 0 0.5rem; }

input, textarea, button {
  font-family: var(--font-ui);
  font-size: 1rem;
}

a { color: var(--accent); }

/* ── Forms ─────────────────────────────────────────────────────────────────── */

label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.9rem;
}

input[type="text"],
input[type="number"],
textarea {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  width: 100%;
  transition: border-color 0.15s;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

textarea { resize: vertical; }

.field-row {
  display: flex;
  gap: 1rem;
}
.field-row label { flex: 1; }

/* ── Buttons ───────────────────────────────────────────────────────────────── */

.btn-primary, .btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-family: var(--font-ui);
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
  text-align: center;
  margin-top: 0.5rem;
}
.btn-primary:hover { background: var(--accent-dark); }

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}
.btn-secondary:hover { background: var(--current); }

/* ── Cards ─────────────────────────────────────────────────────────────────── */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

/* ── Index page ────────────────────────────────────────────────────────────── */

.center-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.site-title {
  text-align: center;
  font-size: 2.4rem;
  margin-bottom: 0.25rem;
}

.site-subtitle {
  text-align: center;
  color: var(--muted);
  font-style: italic;
  margin-bottom: 2.5rem;
}

.error-banner {
  background: #fdecea;
  border: 1px solid #e0a0a0;
  color: #8b2020;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  font-family: var(--font-ui);
  font-size: 0.9rem;
}

.card-row {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.card-row .card { flex: 1; }

.divider {
  font-family: var(--font-ui);
  color: var(--muted);
  padding: 1rem 0;
  align-self: center;
}

/* ── Lobby page ────────────────────────────────────────────────────────────── */

.lobby-page {
  max-width: 560px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

.lobby-card {
  margin-top: 1.5rem;
}

.game-code-label {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.game-code {
  font-family: monospace;
  font-size: 2.2rem;
  font-weight: bold;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.player-list {
  list-style: none;
  margin-bottom: 1.5rem;
}

.player-list li {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tag {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--current);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
}

.hint {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.75rem;
  text-align: center;
}

.waiting-msg {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  color: var(--muted);
  text-align: center;
  padding: 0.5rem 0;
}

/* ── Game header ───────────────────────────────────────────────────────────── */

.game-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
}

.game-header.sticky {
  position: sticky;
  top: 0;
  z-index: 10;
}

.game-header h1 { font-size: 1.4rem; }

.game-header .description {
  font-size: 0.9rem;
  color: var(--muted);
  margin-top: 0.2rem;
  max-width: 60ch;
}

.header-right {
  text-align: right;
  flex-shrink: 0;
}

.round-label {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.2rem;
}

.timer {
  font-family: monospace;
  font-size: 2rem;
  font-weight: bold;
  color: var(--accent);
  transition: color 0.3s;
}

.timer-urgent {
  color: var(--urgent);
}

/* ── Parts container ───────────────────────────────────────────────────────── */

.parts-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── Part cards ────────────────────────────────────────────────────────────── */

.part-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  background: var(--surface);
}

.part-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.part-label {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.editing-badge {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--accent);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
}

.seen-badge {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  color: var(--muted);
}

.current-part {
  background: var(--current);
  border-color: var(--current-border);
}

.seen-part {
  background: var(--seen);
}

.unseen-part {
  background: var(--unseen);
  opacity: 0.7;
}

.part-textarea {
  width: 100%;
  min-height: 200px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  background: var(--surface);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  resize: vertical;
}

.part-textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.part-text {
  font-size: 0.95rem;
  line-height: 1.65;
  white-space: pre-wrap;
}

.muted { color: var(--muted); font-style: italic; }

/* ── Two-column history layout (seen parts) ─────────────────────────────── */

.part-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.col-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

/* ── Story page ────────────────────────────────────────────────────────────── */

.story-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.story-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.story-header h1 { font-size: 2rem; margin-bottom: 0.5rem; }
.story-header .description {
  color: var(--muted);
  font-style: italic;
  margin-bottom: 1rem;
}

.story-complete-badge {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.story-body { margin-bottom: 2.5rem; }

.story-part {
  margin-bottom: 1.5rem;
}

.story-part-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.story-text {
  font-size: 1.05rem;
  line-height: 1.8;
  white-space: pre-wrap;
}

.story-divider {
  text-align: center;
  color: var(--muted);
  font-size: 1.1rem;
  margin: 1.5rem 0;
}

.story-footer {
  text-align: center;
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* ── History page ──────────────────────────────────────────────────────────── */

.history-page {
  padding: 2.5rem 1.5rem;
}

.history-scroll-wrapper {
  overflow-x: auto;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.history-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
}

.history-table th,
.history-table td {
  border: 1px solid var(--border);
  padding: 0;
  vertical-align: top;
}

.history-part-col {
  width: 6rem;
  min-width: 6rem;
}

.history-round-col {
  min-width: 220px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: var(--bg);
  padding: 0.6rem 0.75rem;
  text-align: center;
}

.history-part-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: var(--bg);
  padding: 0.75rem;
  text-align: right;
  white-space: nowrap;
  position: sticky;
  left: 0;
  z-index: 1;
}

.history-cell {
  padding: 0.75rem;
  background: var(--surface);
}

.history-cell-missing {
  color: var(--muted);
  text-align: center;
  font-size: 1.2rem;
}

.history-text {
  font-family: var(--font);
  font-size: 0.9rem;
  line-height: 1.6;
  white-space: pre-wrap;
  margin-bottom: 0.4rem;
}

.history-author {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  color: var(--muted);
  text-align: right;
  font-style: italic;
}

/* ── Game lobby within game header ─────────────────────────────────────────── */

.game-header .description { font-style: italic; }

/* ── Responsive ────────────────────────────────────────────────────────────── */

@media (max-width: 640px) {
  .card-row { flex-direction: column; }
  .divider { text-align: center; }
  .game-header { flex-direction: column; }
  .header-right { text-align: left; }
  .part-columns { grid-template-columns: 1fr; }
}