/* ===== Feng Shui Lens — mobile-first styles ===== */
:root {
  --bg: #f6f2ea;
  --card: #ffffff;
  --ink: #2b2620;
  --muted: #6f675c;
  --accent: #8c2f2f;
  --accent-ink: #ffffff;
  --secondary: #2f5d50;
  --line: #e3dccf;
  --chip: #efe9dd;
  --error: #b3261e;
  --radius: 16px;
  --shadow: 0 2px 10px rgba(43, 38, 32, 0.08);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171412;
    --card: #211d1a;
    --ink: #efe9df;
    --muted: #a89e90;
    --accent: #d46a5f;
    --accent-ink: #1c110f;
    --secondary: #7fbfa9;
    --line: #38312b;
    --chip: #2c2723;
    --error: #ff8a80;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.app-header {
  padding: 20px 16px 8px;
  text-align: center;
}
.app-header h1 { margin: 0; font-size: 1.5rem; letter-spacing: 0.02em; }
.logo { color: var(--accent); }
.tagline { margin: 4px 0 0; color: var(--muted); font-size: 0.9rem; }

.layout {
  display: grid;
  gap: 16px;
  padding: 12px 16px 32px;
  max-width: 640px;
  margin: 0 auto;
}
/* Tablet / desktop: two columns — photo left, reading right */
@media (min-width: 820px) {
  .layout {
    max-width: 1100px;
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
  #capture-section { grid-column: 1 / -1; }
  #photo-section { grid-column: 1; }
  #reading-section { grid-column: 2; }
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 16px;
}
.card h2 { margin: 0 0 8px; font-size: 1.1rem; }
.hint { color: var(--muted); font-size: 0.9rem; margin: 0 0 14px; }

/* Buttons — big touch targets */
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-secondary { background: var(--card); color: var(--ink); border-color: var(--line); }
.btn-ghost { background: transparent; color: var(--muted); border-color: var(--line); }
.btn-icon { font-size: 1.1em; }

.error { color: var(--error); font-weight: 600; }

.canvas-wrap {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #000;
}
#photo-canvas { display: block; width: 100%; height: auto; touch-action: pan-y; }

.meta-panel { margin-top: 12px; display: grid; gap: 6px; }
.meta-row {
  display: flex; justify-content: space-between; gap: 12px;
  font-size: 0.92rem; border-bottom: 1px dashed var(--line); padding: 4px 0;
}
.meta-row .k { color: var(--muted); }
.meta-row .v { text-align: right; font-variant-numeric: tabular-nums; }
.badge {
  display: inline-block; font-size: 0.75rem; padding: 1px 8px; border-radius: 999px;
  background: var(--chip); color: var(--muted); margin-left: 6px;
}

.fallback {
  margin-top: 14px; padding: 12px;
  border: 1px dashed var(--line); border-radius: 12px;
}
.fallback p { margin: 0 0 10px; font-size: 0.95rem; }

.dial-row { margin-top: 12px; display: grid; gap: 10px; }
.dial-row label { font-size: 0.95rem; }
.dial-row output { font-weight: 700; margin-left: 6px; }
input[type="range"] { width: 100%; accent-color: var(--accent); min-height: 32px; }
.cardinal-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  min-width: 44px; min-height: 40px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--chip); color: var(--ink);
  font-weight: 600; cursor: pointer;
}
.chip:active { background: var(--accent); color: var(--accent-ink); }

/* Reading */
.direction-hero {
  display: flex; align-items: center; gap: 14px;
  padding: 12px; border-radius: 12px; background: var(--chip); margin-bottom: 14px;
}
.trigram { font-size: 2.4rem; line-height: 1; }
.direction-hero h3 { margin: 0; font-size: 1.15rem; }
.direction-hero p { margin: 2px 0 0; color: var(--muted); font-size: 0.9rem; }

.reading-block { margin: 14px 0; }
.reading-block h4 {
  margin: 0 0 6px; font-size: 0.85rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--muted);
}
.reading-block ul { margin: 0; padding-left: 20px; }
.reading-block li { margin: 4px 0; }

.color-swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.swatch {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px 4px 4px; border: 1px solid var(--line);
  border-radius: 999px; font-size: 0.85rem;
}
.swatch i {
  width: 22px; height: 22px; border-radius: 50%; display: inline-block;
  border: 1px solid rgba(0,0,0,0.15);
}

.app-footer { text-align: center; color: var(--muted); font-size: 0.8rem; padding: 8px 16px 24px; }

@media (prefers-reduced-motion: no-preference) {
  .card { transition: box-shadow 0.2s ease; }
}