/* ── Reset & Base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0f0f13;
  --surface:     #1a1a24;
  --surface2:    #22222f;
  --border:      #2e2e40;
  --text:        #e8e8f0;
  --text-muted:  #888899;
  --accent:      #8b7cf8;
  --accent2:     #f0c040;
  --cross:       #f0c040;
  --danger:      #e05050;
  --success:     #50c878;
  --radius:      10px;
  --radius-sm:   6px;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Layout ──────────────────────────────────────────────────────────────── */
.app-wrapper {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px 16px 80px;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.app-header {
  text-align: center;
  padding: 40px 0 32px;
  position: relative;
}

.app-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.app-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.app-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-style: italic;
}

.locale-toggle {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: border-color 0.2s;
}
.locale-toggle:hover { border-color: var(--accent); }

/* ── Form ────────────────────────────────────────────────────────────────── */
.mls-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 32px;
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }

input[type="text"],
input[type="date"],
input[type="time"],
input[type="number"],
select {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 10px 14px;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
  appearance: none;
}
input:focus { border-color: var(--accent); }
input:disabled { opacity: 0.4; cursor: not-allowed; }

/* Date/time native pickers in dark mode */
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator {
  filter: invert(0.7);
  cursor: pointer;
}

.checkbox-group { margin-bottom: 14px; }
.checkbox-label { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 0.9rem; }
.checkbox-label input { width: auto; }

.tz-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.6;
}
.tz-hint code {
  font-size: 0.75em;
  background: var(--surface2);
  padding: 1px 4px;
  border-radius: 3px;
  color: var(--accent);
}

/* City autocomplete */
.city-suggestions {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-top: 4px;
  list-style: none;
  max-height: 220px;
  overflow-y: auto;
  z-index: 100;
  position: relative;
}
.suggestion-item {
  padding: 10px 14px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
}
.suggestion-item:hover { background: var(--border); }
.city-name { font-weight: 500; }
.city-meta { color: var(--text-muted); font-size: 0.8rem; }
.suggestion-note { padding: 8px 14px; font-size: 0.75rem; color: var(--text-muted); font-style: italic; }

.location-display { margin-top: 8px; font-size: 0.85rem; }
.loc-confirmed { color: var(--success); }

.manual-coords {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-top: 8px;
}

.form-error {
  background: rgba(224,80,80,0.12);
  border: 1px solid var(--danger);
  border-radius: var(--radius-sm);
  color: var(--danger);
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.calculate-btn {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: opacity 0.2s, transform 0.1s;
}
.calculate-btn:hover:not(:disabled) { opacity: 0.9; transform: translateY(-1px); }
.calculate-btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ── Primitives Section ──────────────────────────────────────────────────── */
.primitives-section { margin-bottom: 32px; }

.section-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
}

.primitives-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 600px) { .primitives-grid { grid-template-columns: 1fr; } }

.column-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.primitive-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
  position: relative;
  overflow: hidden;
}

.primitive-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

/* Day Master card */
.day-master-card { border-top: 3px solid var(--accent, #8b7cf8); }
.day-master-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.dm-stem-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--dm-bg, rgba(139,124,248,0.15));
  border: 1px solid var(--accent, #8b7cf8);
  flex-shrink: 0;
}
.dm-stem {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--accent, #8b7cf8);
}
.dm-label {
  font-size: 1.05rem;
  font-weight: 600;
}
.element-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-bottom: 8px;
}
.primitive-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Balance card */
.balance-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.balance-icon { font-size: 1.3rem; }
.balance-label { font-size: 1rem; font-weight: 600; }

.dist-bar {
  display: flex;
  height: 10px;
  border-radius: 5px;
  overflow: hidden;
  margin-bottom: 10px;
  gap: 2px;
}
.dist-segment {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  transition: width 0.4s ease;
}
.dist-label { font-size: 0.6rem; color: #fff; font-weight: 700; white-space: nowrap; }

.balance-narrative {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Sign cards */
.sign-badge {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.sign-degree {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.sign-unknown {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}
.cusp-warning, .time-sensitive-note {
  font-size: 0.75rem;
  color: var(--accent2);
  margin-top: 4px;
}

/* ── Cocktail Section ────────────────────────────────────────────────────── */
.cocktail-section { margin-bottom: 32px; }

.cocktail-intro {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.themes-list { display: flex; flex-direction: column; gap: 16px; }

.theme-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: border-color 0.2s;
}
.theme-card.cross-system-theme {
  border-color: var(--cross);
  background: rgba(240,192,64,0.04);
}

.theme-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.theme-icon { font-size: 1.3rem; }
.theme-name { font-size: 1.1rem; font-weight: 700; }

.resonance-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 12px;
  letter-spacing: 0.03em;
}
.resonance-badge.cross-system {
  background: rgba(240,192,64,0.15);
  color: var(--cross);
  border: 1px solid var(--cross);
}
.resonance-badge.single-system {
  background: var(--surface2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.theme-strength-bar {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin-top: 14px;
  overflow: hidden;
}
.strength-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.6s ease;
}
.cross-system-theme .strength-fill { background: var(--cross); }

.theme-narrative {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 8px;
}

/* ── Calculation Section ─────────────────────────────────────────────────── */
.calc-section { margin-bottom: 40px; }

.calc-toggle {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 12px 18px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: border-color 0.2s;
}
.calc-toggle:hover { border-color: var(--accent); }
.toggle-arrow { font-size: 0.7rem; }

.calc-panels {
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  overflow: hidden;
}

/* Calc + signals tables scroll horizontally on narrow phones */
.calc-table, .signals-table {
  min-width: 340px;
}
.calc-panel, .theme-breakdown {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.calc-panel {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}
.calc-panel:last-child { border-bottom: none; }

.calc-panel-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.calc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.calc-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.calc-table td:first-child { color: var(--text-muted); width: 40%; white-space: nowrap; }

code {
  font-family: 'SF Mono', Consolas, 'Courier New', monospace;
  font-size: 0.88em;
  background: var(--surface2);
  padding: 2px 5px;
  border-radius: 3px;
  color: var(--accent);
}

.calc-note { font-size: 0.78rem; color: var(--text-muted); display: block; margin-top: 3px; }
.calc-warn { font-size: 0.78rem; color: var(--accent2); }
.calc-footnote { font-size: 0.78rem; color: var(--text-muted); margin-top: 12px; line-height: 1.5; }

/* Theme breakdown in calc panel */
.theme-breakdown { margin-bottom: 20px; }
.theme-breakdown h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 8px; }
.score-badge { font-size: 0.75rem; color: var(--text-muted); font-weight: normal; margin-left: 8px; }

.signals-table { width: 100%; border-collapse: collapse; font-size: 0.78rem; }
.signals-table th { text-align: left; padding: 5px 8px; color: var(--text-muted); border-bottom: 1px solid var(--border); }
.signals-table td { padding: 5px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.sig-source { color: var(--text-muted); font-family: monospace; font-size: 0.73rem; }
.sig-system { font-size: 0.72rem; padding: 2px 6px !important; border-radius: 10px; }
.badge-bazi    { background: rgba(90,138,74,0.2);  color: #5a8a4a; }
.badge-western { background: rgba(139,124,248,0.2); color: var(--accent); }
.sig-strength { text-align: right; font-weight: 700; }
.sig-note { color: var(--text-muted); }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.app-footer {
  text-align: center;
  padding: 24px;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

/* ── Validation banner ───────────────────────────────────────────────────── */
.validation-banner {
  background: rgba(240,192,64,0.12);
  border-bottom: 1px solid var(--accent2);
  color: var(--accent2);
  padding: 8px 16px;
  font-size: 0.82rem;
  text-align: center;
}

/* ── Four Pillars (八字) table ───────────────────────────────────────────── */
.four-pillars-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 12px;
}

.four-pillars-row {
  display: flex;
  gap: 6px;
  margin-top: 10px;
}

.pillar-cell {
  flex: 1;
  min-width: 0;
  text-align: center;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 4px;
}

.pillar-label-top {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
  text-transform: uppercase;
}

/* Stem (天干) and Branch (地支) stacked */
.pillar-stem {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
}

.pillar-branch {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
  margin-bottom: 4px;
}

.pillar-hidden {
  min-height: 1rem;
  font-size: 0.68rem;
  color: var(--accent2);
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}

.pillar-sub {
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 2px;
  letter-spacing: 0.04em;
}

.pillar-dim .pillar-stem,
.pillar-dim .pillar-branch {
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: 400;
}

.bazi-rule-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 12px;
}

.bazi-rule-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 0;
  font-size: 0.82rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.bazi-rule-row:last-child { border-bottom: none; }
.bazi-rule-row span { color: var(--text-muted); }
.bazi-rule-row strong {
  color: var(--text);
  text-align: right;
  font-weight: 650;
}

.calc-subtitle {
  font-size: 0.82rem;
  color: var(--accent2);
  margin: 18px 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.calc-table.compact th,
.calc-table.compact td {
  padding: 6px 8px;
  font-size: 0.78rem;
}
.active-cycle td {
  background: rgba(240,192,64,0.08);
  color: var(--accent2);
}
.shen-sha-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 8px 0 10px;
}
.shen-sha-toggle button {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  padding: 8px 10px;
  cursor: pointer;
  font-size: 0.78rem;
}
.shen-sha-toggle button.active {
  border-color: var(--accent2);
  color: var(--accent2);
}
.useful-strengthened { color: var(--success); }
.useful-weakened { color: var(--danger); }

/* ── Export Card Button ──────────────────────────────────────────────────── */
.export-card-btn {
  display: block;
  margin: 0 auto 28px;
  padding: 12px 32px;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 24px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background 0.2s, color 0.2s;
}
.export-card-btn:hover { background: var(--accent); color: #fff; }
.export-card-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Small phone overrides (≤400px) ─────────────────────────────────────── */
@media (max-width: 400px) {
  .app-title { font-size: 1.8rem; }
  .app-header { padding-top: 48px; }
  .mls-form { padding: 18px; }
  .theme-card { padding: 14px; }
  .pillar-stem, .pillar-branch { font-size: 1.2rem; }
  .pillar-label-top { font-size: 0.62rem; }
  .four-pillars-row { gap: 4px; }
  .pillar-cell { padding: 7px 2px; }
  .dm-stem-wrap { width: 44px; height: 44px; }
  .dm-stem { font-size: 1.7rem; }
}

/* ── 320px micro-phone ───────────────────────────────────────────────────── */
@media (max-width: 340px) {
  .pillar-stem, .pillar-branch { font-size: 1.05rem; }
  .four-pillars-row { gap: 3px; }
}

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ═══════════════════════════════════════════════════════════════════════════
   EMBLEM SECTION (Phase C)
   ═══════════════════════════════════════════════════════════════════════════ */

.emblem-section {
  padding: 32px 0 24px;
  text-align: center;
}

.emblem-preview-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 290px;
  margin: 20px 0 28px;
}

.emblem-preview-wrap svg {
  filter: drop-shadow(0 0 24px rgba(255,255,255,0.08));
  border-radius: 50%;
}

.emblem-loading {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted, #888);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

.emblem-spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.15);
  border-top-color: var(--accent, #c94b2c);
  border-radius: 50%;
  animation: emblem-spin 0.8s linear infinite;
}

@keyframes emblem-spin {
  to { transform: rotate(360deg); }
}

.emblem-error {
  color: #cc6666;
  font-size: 0.85rem;
}

.emblem-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.emblem-share-btn,
.emblem-dl-btn {
  padding: 11px 26px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
}

.emblem-share-btn {
  background: var(--accent, #c94b2c);
  color: #fff;
  border-color: var(--accent, #c94b2c);
}
.emblem-share-btn:hover:not(:disabled) {
  filter: brightness(1.15);
}

.emblem-dl-btn {
  background: transparent;
  color: var(--text-muted, #aaa);
  border-color: var(--border, #333);
}
.emblem-dl-btn:hover:not(:disabled) {
  border-color: var(--accent, #c94b2c);
  color: var(--accent, #c94b2c);
}

.emblem-share-btn:disabled,
.emblem-dl-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

@media (max-width: 400px) {
  .emblem-share-btn,
  .emblem-dl-btn { padding: 10px 18px; font-size: 0.85rem; }
}