:root {
  --bg: #0d1117;
  --bg-surface: #161b22;
  --bg-card: #1c2128;
  --bg-hover: #252b33;
  --bg-input: #0d1117;
  --border: #30363d;
  --border-focus: #f0983a;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --text-dim: #484f58;
  --accent: #f0983a;
  --accent-glow: rgba(240, 152, 58, 0.15);
  --green: #3fb950;
  --blue: #58a6ff;
  --red: #f85149;
  --purple: #bc8cff;
  --pink: #f778ba;
  --radius: 10px;
  --radius-sm: 5px;
  --shadow: 0 2px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 4px 24px rgba(0,0,0,0.5);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
}

/* ---- HEADER ---- */
.app-header {
  background: linear-gradient(135deg, #1a1208 0%, #2a1a08 50%, #1a1208 100%);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}
.header-inner { max-width: 1400px; margin: 0 auto; }
.header-top { display: flex; align-items: baseline; gap: 1rem; margin-bottom: 0.6rem; }
.logo {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.logo-icon { font-size: 1.3rem; margin-right: 0.2rem; }
.subtitle {
  color: var(--text-dim);
  font-size: 0.8rem;
}

/* ---- TAB BAR ---- */
.tab-bar {
  display: flex;
  gap: 0;
  position: relative;
}
.tab-btn {
  background: none;
  border: none;
  padding: 0.6rem 1.4rem;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.2s;
  position: relative;
  z-index: 1;
}
.tab-btn:hover { color: var(--text-muted); }
.tab-btn.active { color: var(--accent); }
.tab-indicator {
  position: absolute;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px 2px 0 0;
  transition: left 0.3s ease, width 0.3s ease;
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ---- TAB CONTENT ---- */
.tab-content { flex: 1; display: flex; flex-direction: column; }
.hidden { display: none !important; }

/* ---- SEED BAR ---- */
.seed-bar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 0.8rem 2rem;
}
.seed-bar-inner { max-width: 1400px; margin: 0 auto; }
.seed-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}
.seed-input-group {
  display: flex;
  gap: 0.5rem;
  max-width: 520px;
}
.seed-input-group input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.seed-input-group input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.btn {
  padding: 0.5rem 1.2rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: var(--accent);
  color: #1a1208;
  box-shadow: 0 2px 8px rgba(240,152,58,0.2);
}
.btn-primary:hover { background: #e08a2e; box-shadow: 0 2px 12px rgba(240,152,58,0.3); }
.seed-hint {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 0.3rem;
}
.seed-hint.active { color: var(--green); }

/* ---- MAIN LAYOUT (ANVIL) ---- */
.main-content {
  flex: 1;
  display: grid;
  grid-template-columns: 380px 1fr;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  gap: 0;
  min-height: 0;
}
.main-content:has(.pinned-panel:not(.hidden)),
.main-content.has-pins {
  grid-template-columns: 300px 380px 1fr;
}

/* ---- PINNED PANEL ---- */
.pinned-panel {
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: calc(100vh - 200px);
  position: sticky;
  top: 0;
  overflow: hidden;
}
.pinned-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1rem 0.5rem;
}
.pinned-header h2 { font-size: 0.9rem; font-weight: 600; }
.pinned-list {
  overflow-y: auto;
  flex: 1;
  padding: 0 0.6rem 0.6rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.pinned-list::-webkit-scrollbar { width: 6px; }
.pinned-list::-webkit-scrollbar-track { background: transparent; }
.pinned-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.pinned-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 0.7rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.pinned-card:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
  box-shadow: 0 2px 8px rgba(240,152,58,0.08);
}
.pinned-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.3rem;
  margin-bottom: 0.35rem;
}
.pinned-card-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.btn-unpin {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 0.65rem;
  cursor: pointer;
  padding: 0.1rem 0.2rem;
  border-radius: 3px;
  flex-shrink: 0;
  line-height: 1;
  transition: color 0.15s, background 0.15s;
}
.btn-unpin:hover { color: var(--red); background: rgba(248,81,73,0.12); }
.pinned-card-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.35rem;
  flex-wrap: wrap;
}
.pinned-input {
  font-size: 0.6rem;
  font-weight: 600;
  padding: 0.08rem 0.3rem;
  border-radius: 3px;
  font-family: var(--mono);
}
.pinned-target { font-size: 0.7rem; font-weight: 600; font-family: var(--mono); color: var(--accent); }
.pinned-no-seed { color: var(--text-dim); }
.pinned-card-seq { display: flex; flex-wrap: wrap; gap: 0.15rem; align-items: center; }
.pinned-card-seq .step-badge-sm { font-size: 0.58rem; padding: 0.1rem 0.3rem; }
.pinned-card-seq .step-arrow { font-size: 0.5rem; }
.pinned-card-nosol { font-size: 0.7rem; color: var(--red); font-family: var(--mono); }

/* ---- STAR / PIN BUTTONS ---- */
.btn-star {
  background: none;
  border: none;
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-dim);
  padding: 0.1rem;
  flex-shrink: 0;
  transition: color 0.15s, transform 0.15s;
}
.btn-star:hover { color: var(--accent); transform: scale(1.2); }
.btn-star.starred { color: var(--accent); }
.btn-pin {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-dim);
  padding: 0.25rem 0.5rem;
  flex-shrink: 0;
  transition: color 0.15s, border-color 0.15s, transform 0.15s;
}
.btn-pin:hover { color: var(--accent); border-color: var(--accent); transform: scale(1.1); }
.btn-pin.starred { color: var(--accent); border-color: var(--accent); }
.detail-title-row { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 0.6rem; }
.detail-title-row .detail-title { margin-bottom: 0; }

/* ---- RECIPE PANEL (LEFT) ---- */
.recipe-panel {
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: calc(100vh - 200px);
  position: sticky;
  top: 0;
}
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.2rem 0.5rem;
}
.panel-header h2 { font-size: 0.95rem; font-weight: 600; }
.recipe-count {
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.12rem 0.5rem;
  border-radius: 10px;
  font-family: var(--mono);
}
.search-group { padding: 0 1.2rem; margin-bottom: 0.5rem; }
.search-group input {
  width: 100%;
  padding: 0.45rem 0.7rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.82rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-group input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0 1.2rem 0.5rem;
}
.filter-row select {
  flex: 1;
  min-width: 70px;
  padding: 0.3rem 0.4rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.72rem;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}
.filter-row select:focus { border-color: var(--border-focus); }
.recipe-list {
  list-style: none;
  overflow-y: auto;
  flex: 1;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.recipe-list::-webkit-scrollbar { width: 6px; }
.recipe-list::-webkit-scrollbar-track { background: transparent; }
.recipe-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
.recipe-item {
  padding: 0.55rem 1.2rem;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.recipe-item:hover { background: var(--bg-hover); }
.recipe-item.selected { background: var(--accent-glow); border-left: 3px solid var(--accent); }
.recipe-item-info { flex: 1; min-width: 0; }
.recipe-item-name {
  font-size: 0.82rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.recipe-item-sub {
  font-size: 0.68rem;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.recipe-item-input {
  font-size: 0.58rem;
  font-weight: 600;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  flex-shrink: 0;
  font-family: var(--mono);
  white-space: nowrap;
}
.input-ingot        { color: #d4af37; background: rgba(212,175,55,0.12); }
.input-double-ingot { color: #e0c060; background: rgba(224,192,96,0.15); }
.input-sheet        { color: #6db6f0; background: rgba(109,182,240,0.12); }
.input-double-sheet { color: #8cc8ff; background: rgba(140,200,255,0.15); }
.input-rod          { color: #c8a878; background: rgba(200,168,120,0.12); }
.input-long-rod     { color: #d4b888; background: rgba(212,184,136,0.15); }
.input-bloom        { color: #f08080; background: rgba(240,128,128,0.12); }
.input-dust         { color: #b0b0b0; background: rgba(176,176,176,0.12); }
.recipe-item-tier {
  font-size: 0.62rem;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  flex-shrink: 0;
  font-family: var(--mono);
}

/* ---- DETAIL PANEL (RIGHT) ---- */
.detail-panel {
  padding: 1.8rem 2.5rem;
  overflow-y: auto;
  height: calc(100vh - 200px);
}
.detail-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-dim);
  text-align: center;
}
.empty-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.3; }
.detail-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--accent);
}
.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}
.meta-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-family: var(--mono);
}
.tier-badge { background: #1a3a2a; color: var(--green); }
.input-badge { background: #1a2a3a; color: var(--blue); }
.bonus-badge { background: #3a2a1a; color: var(--accent); }
.id-badge { background: var(--bg-card); color: var(--text-muted); }
.detail-section { margin-bottom: 1.6rem; }
.detail-section h3 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.rules-display { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.rule-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 500;
  transition: border-color 0.2s;
}
.rule-type { font-weight: 600; text-transform: capitalize; }
.rule-order { color: var(--text-muted); font-size: 0.72rem; }
.target-display { font-family: var(--mono); font-size: 2.5rem; font-weight: 700; color: var(--accent); }
.target-no-seed { font-family: var(--font); font-size: 0.85rem; font-weight: 400; color: var(--text-dim); }
.anvil-bar-container { margin-top: 0.8rem; }
.anvil-bar {
  position: relative;
  height: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: visible;
}
.anvil-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #2a4a1a 0%, #3a6a2a 100%);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  transition: width 0.4s ease;
}
.anvil-bar-marker {
  position: absolute;
  top: -4px;
  width: 3px;
  height: 36px;
  background: var(--accent);
  border-radius: 2px;
  transition: left 0.4s ease;
  box-shadow: 0 0 8px var(--accent);
}
.anvil-bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.62rem;
  color: var(--text-dim);
  font-family: var(--mono);
  margin-top: 0.2rem;
  padding: 0 2px;
}
.step-count {
  font-family: var(--mono);
  font-size: 0.7rem;
  background: var(--bg-card);
  padding: 0.12rem 0.5rem;
  border-radius: 10px;
  color: var(--text-muted);
  margin-left: 0.5rem;
  text-transform: none;
  letter-spacing: 0;
}
.solution-steps { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 1rem; }
.step-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.28rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--mono);
  border: 1px solid transparent;
  transition: box-shadow 0.2s;
}
.step-badge.is-rule { border-color: var(--accent); box-shadow: 0 0 6px var(--accent-glow); }
.step-arrow { color: var(--text-dim); font-size: 0.6rem; margin: 0 0.05rem; }
.step-punch   { background: #1a3a1a; color: #6dd66d; }
.step-bend    { background: #1a2a3a; color: #6db6f0; }
.step-upset   { background: #2a1a3a; color: #b68cf0; }
.step-shrink  { background: #3a1a2a; color: #f08cb6; }
.step-hit_light  { background: #3a2a1a; color: #f0b66d; }
.step-hit_medium { background: #3a2010; color: #f09050; }
.step-hit_hard   { background: #3a1510; color: #f07050; }
.step-draw    { background: #2a2018; color: #c8a878; }
.solution-path {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  background: var(--bg-card);
  padding: 0.65rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  line-height: 1.8;
  word-break: break-all;
}

/* ---- TIER COLORS ---- */
.tier-1 { color: #d4875e; background: rgba(212,135,94,0.12); }
.tier-2 { color: #d4af37; background: rgba(212,175,55,0.12); }
.tier-3 { color: #a8a8a8; background: rgba(168,168,168,0.12); }
.tier-4 { color: #b4b4c8; background: rgba(180,180,200,0.12); }
.tier-5 { color: #6a9bd4; background: rgba(106,155,212,0.12); }
.tier-6 { color: #d46a6a; background: rgba(212,106,106,0.12); }

/* ============================================================
   ALLOY CALCULATOR TAB
   ============================================================ */
.alloy-page {
  flex: 1;
  padding: 1.5rem 2rem;
  overflow-y: auto;
}
.alloy-container {
  max-width: 900px;
  margin: 0 auto;
}
.alloy-top-bar {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  margin-bottom: 1.2rem;
  box-shadow: var(--shadow);
}
.alloy-controls-row {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.alloy-mode-toggle, .alloy-calc-toggle {
  display: inline-flex;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.mode-btn {
  background: none;
  border: none;
  padding: 0.45rem 1.4rem;
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s;
}
.mode-btn:hover { color: var(--text-muted); }
.mode-btn.active {
  background: var(--accent);
  color: #1a1208;
}
.alloy-target-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}
.alloy-select {
  flex: 1;
  min-width: 200px;
  padding: 0.5rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}
.alloy-select:focus { border-color: var(--border-focus); }
.alloy-ingot-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.alloy-ingot-input {
  width: 60px;
  padding: 0.5rem 0.5rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.85rem;
  text-align: center;
  outline: none;
  transition: border-color 0.2s;
}
.alloy-ingot-input:focus { border-color: var(--border-focus); }

/* ---- Alloy Optimization ---- */
.alloy-optimize-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.8rem;
  flex-wrap: wrap;
}
.alloy-opt-select {
  padding: 0.4rem 0.6rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.78rem;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}
.alloy-opt-select:focus { border-color: var(--border-focus); }

/* ---- Alloy Component Header ---- */
.alloy-comp-header {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

/* ---- Alloy Components ---- */
.alloy-components {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}
.comp-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.comp-card.valid { border-color: rgba(63,185,80,0.3); }
.comp-card.invalid { border-color: rgba(248,81,73,0.3); }
.comp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
}
.comp-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}
.comp-range {
  font-size: 0.72rem;
  font-family: var(--mono);
  color: var(--text-muted);
}
.comp-range .pct-val { color: var(--accent); font-weight: 600; }
.comp-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.5rem;
}
.comp-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.55rem;
}
.comp-item-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  flex: 1;
  white-space: nowrap;
}
.comp-item-mb {
  font-size: 0.6rem;
  font-family: var(--mono);
  color: var(--text-dim);
}
.comp-item input[type="number"] {
  width: 44px;
  padding: 0.2rem 0.3rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.75rem;
  text-align: center;
  outline: none;
  transition: border-color 0.2s;
}
.comp-item input[type="number"]:focus { border-color: var(--border-focus); }
.comp-mb-total {
  margin-top: 0.5rem;
  font-size: 0.72rem;
  font-family: var(--mono);
  color: var(--text-muted);
}
.comp-mb-total .mb-num { color: var(--accent); font-weight: 600; }
.comp-mb-total .pct-ok { color: var(--green); }
.comp-mb-total .pct-bad { color: var(--red); }

/* ---- Ore Source Sections ---- */
.ore-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: 100%;
  background: none;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.7rem;
  margin-top: 0.6rem;
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.ore-toggle::before {
  content: "\25B6";
  font-size: 0.55rem;
  transition: transform 0.2s;
}
.ore-toggle.open::before { transform: rotate(90deg); }
.ore-toggle:hover { color: var(--accent); border-color: var(--accent); }
.ore-sections { margin-top: 0.5rem; }
.ore-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.6rem;
  margin-bottom: 0.4rem;
}
.ore-section:last-child { margin-bottom: 0; }
.ore-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}
.ore-section-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text);
}
.ore-section-pct {
  font-size: 0.65rem;
  font-family: var(--mono);
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}

/* ---- Bloomery ---- */
.bloomery-panel {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.bloomery-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.bloomery-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  min-width: 7rem;
}
.bloomery-size-toggle {
  display: flex;
  gap: 0.3rem;
}
.bloomery-info {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
  padding: 0.6rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.bloomery-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
  margin-top: 0.3rem;
}
.bloomery-table th {
  text-align: left;
  padding: 0.45rem 0.6rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.bloomery-table td {
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
}
.bloomery-table tbody tr:hover { background: var(--accent-glow); }
.bloomery-best { background: rgba(99,102,241,0.06); }
.bloomery-best .bl-blooms { color: var(--accent); font-weight: 700; }
.bl-item-name { font-weight: 600; color: var(--text); }
.bl-num { font-family: var(--mono); text-align: right; }
.bl-blooms { font-weight: 600; }
.bl-waste { font-family: var(--mono); font-size: 0.72rem; color: var(--text-muted); }
.bloomery-summary {
  font-size: 0.82rem;
  padding: 0.7rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  line-height: 1.6;
}
.bl-highlight {
  color: var(--accent);
  font-weight: 700;
  font-size: 1rem;
}
.bloomery-custom-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.5rem;
}
.bloomery-btn-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.3rem;
}
.bloomery-custom-result { margin-top: 0.8rem; }
.bloomery-result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
}
.bl-result-row {
  display: flex;
  justify-content: space-between;
  padding: 0.3rem 0;
  font-size: 0.82rem;
  border-bottom: 1px solid var(--border);
}
.bl-result-row:last-child { border-bottom: none; }
.bl-note { color: var(--text-muted); font-style: italic; }
.bl-warn { color: #ef4444; font-size: 0.82rem; font-weight: 600; }

/* ---- Alloy Score ---- */
.alloy-score-row {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1.2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.alloy-score-circle {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--text-dim);
  flex-shrink: 0;
  background: var(--bg-card);
}
.alloy-score-circle.score-high { border-color: var(--green); }
.alloy-score-circle.score-mid  { border-color: var(--accent); }
.alloy-score-circle.score-low  { border-color: var(--red); }
.score-value {
  font-size: 1.4rem;
  font-weight: 700;
  font-family: var(--mono);
}
.score-high .score-value { color: var(--green); }
.score-mid  .score-value { color: var(--accent); }
.score-low  .score-value { color: var(--red); }
.alloy-score-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.score-sub {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
}
.score-sub-label {
  color: var(--text-muted);
  min-width: 65px;
}
.score-sub-val {
  font-family: var(--mono);
  font-weight: 600;
  color: var(--text);
}

/* ---- Alloy Results ---- */
.alloy-results {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  box-shadow: var(--shadow);
}
.alloy-results-title {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}
.alloy-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.alloy-stat {
  display: flex;
  flex-direction: column;
}
.alloy-stat-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}
.alloy-stat-value {
  font-size: 1.3rem;
  font-weight: 700;
  font-family: var(--mono);
  color: var(--text);
}
.alloy-stat-value.perfect { color: var(--green); }
.alloy-stat-value.wasteful { color: var(--accent); }
.badge-perfect {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(63,185,80,0.15);
  color: var(--green);
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.alloy-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.alloy-brk-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8rem;
}
.alloy-brk-metal {
  font-weight: 600;
  min-width: 120px;
}
.alloy-brk-items {
  flex: 1;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}
.alloy-brk-pct {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  min-width: 50px;
  text-align: right;
}
.alloy-brk-pct.ok { color: var(--green); }
.alloy-brk-pct.bad { color: var(--red); }
.alloy-brk-bar {
  width: 80px;
  height: 6px;
  background: var(--bg-card);
  border-radius: 3px;
  overflow: hidden;
  flex-shrink: 0;
}
.alloy-brk-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s ease;
}

/* ============================================================
   CHANGE LOG TAB
   ============================================================ */
.changelog-page {
  flex: 1;
  padding: 1.5rem 2rem;
  overflow-y: auto;
}
.changelog-container {
  max-width: 900px;
  margin: 0 auto;
}
.changelog-header {
  margin-bottom: 1rem;
}
.changelog-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}
.changelog-header p {
  color: var(--text-muted);
  margin-top: 0.3rem;
  font-size: 0.85rem;
}
.changelog-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.changelog-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  box-shadow: var(--shadow);
}
.changelog-item-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-bottom: 0.45rem;
}
.changelog-date {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  font-weight: 600;
}
.changelog-version {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}
.changelog-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}
.changelog-summary {
  color: var(--text-muted);
  font-size: 0.83rem;
  margin-bottom: 0.55rem;
}
.changelog-points {
  margin-left: 1rem;
  color: var(--text);
  font-size: 0.8rem;
}
.changelog-points li + li {
  margin-top: 0.25rem;
}

/* ---- FOOTER ---- */
.app-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 0.7rem 2rem;
  font-size: 0.68rem;
  color: var(--text-dim);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1100px) {
  .main-content:has(.pinned-panel:not(.hidden)),
  .main-content.has-pins {
    grid-template-columns: 250px 340px 1fr;
  }
}
@media (max-width: 900px) {
  .main-content,
  .main-content:has(.pinned-panel:not(.hidden)),
  .main-content.has-pins {
    grid-template-columns: 1fr;
  }
  .pinned-panel {
    height: auto;
    max-height: 35vh;
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .recipe-panel {
    height: auto;
    max-height: 50vh;
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .detail-panel { height: auto; min-height: 50vh; }
  .header-top { flex-direction: column; gap: 0.2rem; }
  .alloy-page { padding: 1rem; }
}
@media (max-width: 500px) {
  .app-header { padding: 0.8rem 1rem 0; }
  .seed-bar { padding: 0.7rem 1rem; }
  .detail-panel { padding: 1rem; }
  .filter-row { flex-wrap: wrap; }
  .tab-btn { padding: 0.5rem 0.8rem; font-size: 0.78rem; }
  .alloy-target-row { flex-direction: column; align-items: stretch; }
  .comp-items { grid-template-columns: 1fr 1fr; }
}