/* Chess Pattern Trainer — mineral/editorial */
:root {
  --ink: #111111;
  --paper: #f4f1ea;
  --pencil: #C2362E;
  --muted: rgba(17,17,17,0.65);
  --faint: rgba(17,17,17,0.4);
  --rule: rgba(17,17,17,0.15);
  --ok: #1f6a4a;
  --warn: #c08400;
  --bad: var(--pencil);
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  min-height: 100vh;
}

.page { max-width: 1080px; margin: 0 auto; padding: 0 24px 64px; }

/* Top strip */
.strip {
  border-bottom: 1px solid var(--rule);
  margin-bottom: 32px;
}
.strip-inner {
  display: flex; align-items: center; gap: 24px;
  padding: 16px 0;
  font-size: 13px;
}
.brand {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 20px; font-weight: 600; letter-spacing: -0.5px;
  color: var(--ink); text-decoration: none;
}
.brand-pencil { color: var(--pencil); }
.report-meta { color: var(--muted); flex: 1; font-size: 12px; }
.pos-nav { display: flex; gap: 6px; }
.pos-nav button {
  background: transparent; border: 1px solid var(--rule);
  padding: 6px 12px; font: inherit; font-size: 12px;
  border-radius: 999px; cursor: pointer; color: var(--muted);
  letter-spacing: 0.3px;
}
.pos-nav button:hover { color: var(--ink); border-color: var(--ink); }
.pos-nav button.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* Hero */
.hero { margin-bottom: 32px; max-width: 760px; }
.hero-kicker {
  font-size: 11px; letter-spacing: 2px; color: var(--pencil);
  text-transform: uppercase; font-weight: 700; margin-bottom: 8px;
}
.hero-title {
  font-family: "Cormorant Garamond", "Hoefler Text", Georgia, serif;
  font-size: 40px; line-height: 1.05; letter-spacing: -0.5px;
  font-weight: 600; margin: 0 0 12px;
}
.hero-frame {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-style: italic; font-size: 20px; line-height: 1.4;
  color: var(--ink); margin: 0;
}

/* Analysis layout */
.analysis-grid {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) 320px;
  gap: 16px;
  align-items: start;
  margin-bottom: 16px;
}
@media (max-width: 900px) {
  .analysis-grid { grid-template-columns: 16px 1fr; }
  .panel { grid-column: 1 / -1; margin-top: 16px; }
}

/* Eval bar */
.eval-bar {
  height: 480px;
  width: 16px;
  background: #1a1d1a;
  border: 1px solid var(--rule);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
.eval-bar-fill {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  background: #ede7d8;
  height: 50%;
  transition: height 0.25s ease;
}

/* Board */
.board-wrap {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  position: relative;
}
#board { width: 480px; height: 480px; max-width: 100%; }
@media (max-width: 520px) {
  #board { width: calc(100vw - 32px); height: calc(100vw - 32px); }
  .eval-bar { height: calc(100vw - 32px); }
}

.analysis-hint { font-size: 12px; color: var(--faint); margin-top: 8px; text-align: center; letter-spacing: 0.3px; }

/* Side panel */
.panel {
  background: rgba(255,255,255,0.6);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 20px;
}
.panel-section { margin-bottom: 24px; }
.panel-section:last-child { margin-bottom: 0; }
.panel-label {
  font-size: 11px; letter-spacing: 2px; color: var(--pencil);
  text-transform: uppercase; font-weight: 700; margin-bottom: 10px;
}
.panel-eval {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 22px; font-weight: 600; margin-bottom: 12px;
}
.panel-lines { margin: 0; padding-left: 0; list-style: none; }
.panel-lines li {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 12px; color: var(--muted);
  padding: 4px 0; border-top: 1px solid var(--rule);
  letter-spacing: 0.2px;
}
.panel-lines li:first-child { border-top: 0; }
.panel-lines .pv-score { color: var(--ink); font-weight: 600; margin-right: 8px; }

.panel-actions { display: flex; flex-direction: column; gap: 8px; }
.btn {
  background: var(--ink); color: var(--paper); border: none;
  padding: 10px 16px; font: inherit; font-weight: 700;
  border-radius: 3px; cursor: pointer;
  font-size: 13px; letter-spacing: 0.3px;
  text-align: left;
}
.btn:hover { background: var(--pencil); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.panel-context {
  font-size: 14px; line-height: 1.55; color: var(--muted);
  margin: 0 0 10px;
}
.panel-context-fix {
  font-size: 14px; line-height: 1.55; color: var(--ink);
  font-style: italic; margin: 0;
}

.footer {
  margin-top: 64px; padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-size: 12px; color: var(--faint);
  letter-spacing: 0.3px; text-align: center;
}
.footer p { margin: 0; }