:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-alt: #1f2630;
  --border: #30363d;
  --accent: #3fb950;
  --accent-glow: rgba(63, 185, 80, 0.2);
  --purple: #a371f7;
  --purple-glow: rgba(163, 113, 247, 0.22);
  --gold: #e3b341;
  --danger: #f85149;
  --text: #e6edf3;
  --muted: #8b949e;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.65;
  font-size: 16px;
}
a { color: #58a6ff; text-decoration: none; transition: color 0.15s; }
a:hover { color: #79c0ff; text-decoration: underline; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 20px; }

/* Header & Nav */
.site-header {
  background: rgba(22, 27, 34, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  flex-wrap: wrap;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none !important;
}
.brand-badge {
  background: linear-gradient(135deg, #a371f7, #3fb950);
  color: #0d1117;
  font-weight: 900;
  padding: 4px 9px;
  border-radius: 6px;
  font-size: 0.85rem;
}
.nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  text-decoration: none;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  background: var(--panel-alt);
}

/* Hero Section */
.hero {
  padding: 36px 0 24px;
  text-align: center;
}
.version-pill {
  display: inline-block;
  background: var(--purple-glow);
  color: #d2a8ff;
  border: 1px solid rgba(163, 113, 247, 0.45);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}
h1 {
  font-size: clamp(1.85rem, 3.6vw, 2.65rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: #ffffff;
}
.hero-sub {
  max-width: 780px;
  margin: 0 auto 22px;
  color: var(--muted);
  font-size: 1.05rem;
}

/* Presets Bar */
.presets-bar {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 24px;
}
.presets-title {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.preset-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.preset-btn {
  background: var(--panel-alt);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 13px;
  border-radius: 8px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.preset-btn:hover {
  border-color: var(--purple);
  background: var(--purple-glow);
  transform: translateY(-1px);
}

/* Main Calculator Grid */
.calc-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 22px;
  margin-bottom: 40px;
}
@media (max-width: 900px) {
  .calc-grid { grid-template-columns: 1fr; }
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
}
.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
}
label.field-label {
  display: block;
  font-size: 0.84rem;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 6px;
}
select, input[type="number"], input[type="text"] {
  width: 100%;
  background: #0d1117;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.95rem;
  font-weight: 600;
}
select:focus, input:focus {
  outline: none;
  border-color: var(--purple);
}

/* Enchantment Picker List */
.ench-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 460px;
  overflow-y: auto;
  padding-right: 4px;
}
.ench-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 9px 12px;
  transition: border-color 0.15s;
}
.ench-item.selected {
  border-color: var(--accent);
  background: rgba(63, 185, 80, 0.1);
}
.ench-item.incompatible {
  opacity: 0.42;
}
.ench-name {
  font-weight: 600;
  font-size: 0.92rem;
}
.ench-meta {
  font-size: 0.76rem;
  color: var(--muted);
}
.lvl-group {
  display: flex;
  gap: 4px;
}
.lvl-btn {
  background: #0d1117;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  min-width: 32px;
  height: 30px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}
.lvl-btn:hover {
  border-color: var(--text);
  color: var(--text);
}
.lvl-btn.active {
  background: var(--accent);
  color: #0d1117;
  border-color: var(--accent);
}

/* Results Panel */
.summary-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
.stat-box {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  text-align: center;
}
.stat-label {
  font-size: 0.76rem;
  color: var(--muted);
  text-transform: uppercase;
  font-weight: 700;
}
.stat-val {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--accent);
  font-family: var(--mono);
  margin-top: 2px;
}
.survival-banner {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.survival-banner.safe {
  background: rgba(63, 185, 80, 0.14);
  border: 1px solid rgba(63, 185, 80, 0.45);
  color: #56d364;
}
.survival-banner.danger {
  background: rgba(248, 81, 73, 0.15);
  border: 1px solid rgba(248, 81, 73, 0.5);
  color: #ff7b72;
}
.steps-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.step-card {
  background: #0d1117;
  border: 1px solid var(--border);
  border-left: 4px solid var(--purple);
  border-radius: 9px;
  padding: 12px 14px;
}
.step-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
  color: var(--muted);
  margin-bottom: 6px;
}
.step-cost {
  background: var(--purple-glow);
  color: #d2a8ff;
  font-family: var(--mono);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
}
.step-formula {
  font-weight: 700;
  font-size: 0.96rem;
  color: var(--text);
}
.action-bar {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.btn-action {
  flex: 1;
  background: var(--panel-alt);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 9px 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.86rem;
  cursor: pointer;
}
.btn-action:hover { border-color: var(--accent); color: var(--accent); }

/* Content Sections */
.content-section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 30px;
  margin-bottom: 28px;
}
.content-section h2 {
  font-size: 1.55rem;
  color: #ffffff;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
}
.content-section h3 {
  font-size: 1.18rem;
  color: #d2a8ff;
  margin: 20px 0 8px;
}
.content-section p {
  margin-bottom: 14px;
  color: #c9d1d9;
}
.content-section ul, .content-section ol {
  margin: 0 0 16px 22px;
  color: #c9d1d9;
}
.content-section li { margin-bottom: 8px; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 16px 0; }
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
table.data-table th, table.data-table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
table.data-table th {
  background: var(--panel-alt);
  color: #ffffff;
  font-weight: 700;
}
table.data-table tr:nth-child(even) { background: rgba(255,255,255,0.02); }

/* FAQ Grid */
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.faq-item:last-child { border-bottom: none; }
.faq-q {
  font-weight: 700;
  font-size: 1.06rem;
  color: #ffffff;
  margin-bottom: 6px;
}
.faq-a { color: #c9d1d9; margin: 0; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 36px 0;
  margin-top: 48px;
  color: var(--muted);
  font-size: 0.88rem;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}