:root {
  --green: #00ff87;
  --green-dim: #00c466;
  --green-dark: #003820;
  --amber: #ffb347;
  --amber-dark: #3a2800;
  --red: #ff4f4f;
  --red-dark: #3a0000;
  --blue: #4fc3f7;
  --blue-dark: #002a3a;
  --purple: #c084fc;
  --purple-dark: #1e0a3a;
  --bg: #080c08;
  --bg2: #0d130d;
  --bg3: #121a12;
  --bg4: #172017;
  --border: #1a2a1a;
  --border2: #243424;
  --text: #bdd8bd;
  --text-dim: #5a7a5a;
  --text-bright: #e8f5e8;
  --mono: 'Space Mono', monospace;
  --display: 'Bebas Neue', sans-serif;
  --body: 'DM Sans', sans-serif;
  --radius: 4px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 14px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--green-dim); }

/* Header */
header {
  position: sticky; top: 0; z-index: 200;
  background: rgba(8, 12, 8, 0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 52px; gap: 16px;
}
.logo { font-family: var(--display); font-size: 24px; color: var(--green); letter-spacing: 3px; white-space: nowrap; flex-shrink: 0; }
.logo-sub { font-family: var(--mono); font-size: 9px; color: var(--text-dim); letter-spacing: 1px; }
.header-center { display: flex; align-items: center; gap: 8px; flex: 1; justify-content: center; }
.plant-count-display { font-family: var(--display); font-size: 32px; color: var(--green); line-height: 1; min-width: 60px; text-align: center; }
.plant-count-label { font-family: var(--mono); font-size: 9px; color: var(--text-dim); text-align: center; }
nav { display: flex; gap: 2px; flex-wrap: wrap; justify-content: flex-end; }
nav a {
  font-family: var(--mono); font-size: 10px; color: var(--text-dim);
  text-decoration: none; padding: 4px 8px;
  border: 1px solid transparent; border-radius: var(--radius);
  transition: all 0.15s; white-space: nowrap;
}
nav a:hover { color: var(--green); border-color: var(--border2); }

/* Configurator */
.configurator { background: var(--bg2); border-bottom: 2px solid var(--green); padding: 28px 24px; position: relative; overflow: hidden; }
.configurator::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 50% -20%, rgba(0,255,135,0.06) 0%, transparent 70%); pointer-events: none; }
.config-inner { max-width: 1200px; margin: 0 auto; }
.config-title { font-family: var(--display); font-size: 48px; color: var(--text-bright); letter-spacing: 2px; line-height: 1; }
.config-title span { color: var(--green); }
.config-subtitle { font-family: var(--mono); font-size: 11px; color: var(--text-dim); margin-top: 4px; margin-bottom: 24px; }
.config-grid { display: grid; grid-template-columns: 1fr 1fr 1fr auto; gap: 20px; align-items: end; }
.config-field label { font-family: var(--mono); font-size: 10px; color: var(--green); text-transform: uppercase; letter-spacing: 1px; display: block; margin-bottom: 8px; }
.config-field input[type=range] { width: 100%; -webkit-appearance: none; height: 3px; background: var(--border2); border-radius: 2px; outline: none; cursor: pointer; }
.config-field input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%; background: var(--green); box-shadow: 0 0 12px rgba(0,255,135,0.5); cursor: pointer; transition: transform 0.1s; }
.config-field input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.2); }
.range-val { font-family: var(--display); font-size: 36px; color: var(--green); line-height: 1; margin-top: 6px; }
.range-unit { font-family: var(--mono); font-size: 10px; color: var(--text-dim); }
.config-field select {
  width: 100%; background: var(--bg3); border: 1px solid var(--border2);
  color: var(--text-bright); padding: 10px 14px;
  font-family: var(--mono); font-size: 11px; border-radius: var(--radius);
  outline: none; cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2300ff87' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
}
.config-field select:focus { border-color: var(--green); }
.config-field select option { background: var(--bg3); }
.btn-calculate { background: var(--green); color: #050f05; font-family: var(--display); font-size: 22px; letter-spacing: 2px; padding: 14px 28px; border: none; border-radius: var(--radius); cursor: pointer; transition: all 0.2s; white-space: nowrap; }
.btn-calculate:hover { background: #00e07a; box-shadow: 0 0 24px rgba(0,255,135,0.4); }

/* Metrics bar */
.metrics-bar { background: var(--bg3); border-bottom: 1px solid var(--border); padding: 12px 24px; }
.metrics-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 1px; }
.metric { padding: 8px 16px; border-right: 1px solid var(--border); text-align: center; }
.metric:last-child { border-right: none; }
.metric-val { font-family: var(--display); font-size: 26px; color: var(--green); line-height: 1; }
.metric-label { font-family: var(--mono); font-size: 9px; color: var(--text-dim); margin-top: 2px; }
.metric.warn .metric-val { color: var(--amber); }
.metric.info .metric-val { color: var(--blue); }

/* Tab system */
.tabs-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.tabs-nav { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-top: 24px; overflow-x: auto; }
.tab-btn { font-family: var(--mono); font-size: 11px; color: var(--text-dim); padding: 10px 18px; border: none; border-bottom: 2px solid transparent; background: transparent; cursor: pointer; transition: all 0.15s; white-space: nowrap; margin-bottom: -1px; }
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--green); border-bottom-color: var(--green); }
.tab-content { display: none; padding: 28px 0; }
.tab-content.active { display: block; }

/* Section headers */
.sec-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.sec-num { font-family: var(--mono); font-size: 10px; color: var(--green); opacity: 0.4; }
.sec-title { font-family: var(--display); font-size: 38px; color: var(--text-bright); letter-spacing: 1px; }
.sec-desc { font-family: var(--mono); font-size: 11px; color: var(--text-dim); margin-bottom: 24px; }

/* Cards & grids */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; transition: border-color 0.2s; }
.card:hover { border-color: rgba(0,255,135,0.15); }
.card-tag { font-family: var(--mono); font-size: 9px; color: var(--green); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 8px; }
.card h3 { font-size: 15px; font-weight: 600; color: var(--text-bright); margin-bottom: 6px; }
.card p { font-size: 13px; color: var(--text-dim); line-height: 1.6; }

/* Stat boxes */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin-bottom: 24px; }
.stat-box { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; text-align: center; }
.stat-val { font-family: var(--display); font-size: 30px; color: var(--green); line-height: 1; }
.stat-unit { font-family: var(--mono); font-size: 9px; color: var(--text-dim); }
.stat-label { font-size: 11px; color: var(--text-dim); margin-top: 3px; }
.dyn { color: var(--amber) !important; }

/* Tables */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th { background: var(--bg3); border-bottom: 1px solid var(--border2); padding: 8px 12px; text-align: left; font-family: var(--mono); font-size: 9px; color: var(--green); text-transform: uppercase; letter-spacing: 1px; white-space: nowrap; }
td { border-bottom: 1px solid var(--border); padding: 8px 12px; color: var(--text); vertical-align: top; }
tr:last-child td { border-bottom: none; }
tr:nth-child(even) td { background: rgba(255,255,255,0.01); }
tr:hover td { background: rgba(0,255,135,0.03); }
td.highlight { color: var(--text-bright); font-weight: 600; }
td.green { color: var(--green); font-family: var(--mono); font-size: 11px; }
td.amber { color: var(--amber); }
td.blue { color: var(--blue); }

/* Schematic */
.schematic { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; font-family: var(--mono); font-size: 11px; white-space: pre; overflow-x: auto; line-height: 1.7; color: var(--green); }
.schematic .d { color: var(--text-dim); }
.schematic .a { color: var(--amber); }
.schematic .b { color: var(--blue); }
.schematic .r { color: var(--red); }
.schematic .w { color: var(--text-bright); }

/* Callout */
.callout { border-left: 2px solid var(--green); padding: 12px 16px; background: rgba(0,255,135,0.04); border-radius: 0 var(--radius) var(--radius) 0; margin: 14px 0; font-size: 13px; }
.callout.warn { border-left-color: var(--amber); background: rgba(255,179,71,0.04); }
.callout.info { border-left-color: var(--blue); background: rgba(79,195,247,0.04); }
.callout.danger { border-left-color: var(--red); background: rgba(255,79,79,0.04); }
.callout strong { color: var(--green); }
.callout.warn strong { color: var(--amber); }
.callout.info strong { color: var(--blue); }
.callout.danger strong { color: var(--red); }

/* Timeline */
.timeline { position: relative; padding-left: 24px; }
.timeline::before { content: ''; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 1px; background: var(--border2); }
.tl-item { position: relative; margin-bottom: 20px; }
.tl-item::before { content: ''; position: absolute; left: -20px; top: 6px; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 6px var(--green); }
.tl-week { font-family: var(--mono); font-size: 9px; color: var(--green); margin-bottom: 2px; text-transform: uppercase; letter-spacing: 1px; }
.tl-title { font-size: 14px; font-weight: 600; color: var(--text-bright); }
.tl-body { font-size: 12px; color: var(--text-dim); margin-top: 3px; }

/* Parts list */
.parts-list { list-style: none; }
.parts-list li { display: flex; justify-content: space-between; align-items: baseline; padding: 7px 0; border-bottom: 1px solid var(--border); gap: 12px; font-size: 12px; }
.parts-list li:last-child { border-bottom: none; }
.pi-name { color: var(--text-bright); flex-shrink: 0; }
.pi-spec { color: var(--text-dim); font-family: var(--mono); font-size: 10px; flex: 1; padding: 0 12px; }
.pi-qty { color: var(--green); font-family: var(--mono); font-size: 10px; white-space: nowrap; }
.pi-qty.dyn { color: var(--amber); }

/* Seed database */
.seed-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.seed-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; cursor: pointer; transition: all 0.2s; position: relative; overflow: hidden; }
.seed-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; opacity: 0; transition: opacity 0.2s; }
.seed-card.indica::before { background: var(--purple); }
.seed-card.sativa::before { background: var(--green); }
.seed-card.hybrid::before { background: var(--amber); }
.seed-card.auto::before { background: var(--blue); }
.seed-card:hover { border-color: rgba(0,255,135,0.2); transform: translateY(-1px); }
.seed-card:hover::before { opacity: 1; }
.seed-card.selected { border-color: var(--green); background: var(--bg3); }
.seed-card.selected::before { opacity: 1; }
.seed-type-badge { font-family: var(--mono); font-size: 9px; padding: 2px 8px; border-radius: 2px; display: inline-block; margin-bottom: 8px; }
.badge-indica { background: rgba(192,132,252,0.15); color: var(--purple); border: 1px solid rgba(192,132,252,0.3); }
.badge-sativa { background: rgba(0,255,135,0.1); color: var(--green); border: 1px solid rgba(0,255,135,0.2); }
.badge-hybrid { background: rgba(255,179,71,0.1); color: var(--amber); border: 1px solid rgba(255,179,71,0.2); }
.badge-auto { background: rgba(79,195,247,0.1); color: var(--blue); border: 1px solid rgba(79,195,247,0.2); }
.seed-name { font-size: 15px; font-weight: 600; color: var(--text-bright); margin-bottom: 4px; }
.seed-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; margin-top: 10px; }
.seed-meta-item { font-family: var(--mono); font-size: 9px; }
.seed-meta-label { color: var(--text-dim); }
.seed-meta-val { color: var(--text-bright); }
.seed-bar { height: 3px; background: var(--border2); border-radius: 2px; margin-top: 3px; overflow: hidden; }
.seed-bar-fill { height: 100%; border-radius: 2px; background: var(--green); transition: width 0.3s; }
.seed-notes { font-size: 11px; color: var(--text-dim); margin-top: 8px; line-height: 1.5; }
.seed-filters { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.filter-btn { font-family: var(--mono); font-size: 10px; padding: 5px 12px; border: 1px solid var(--border2); background: transparent; color: var(--text-dim); border-radius: 2px; cursor: pointer; transition: all 0.15s; }
.filter-btn:hover, .filter-btn.active { color: var(--green); border-color: var(--green); background: rgba(0,255,135,0.05); }
.seed-search { width: 100%; background: var(--bg2); border: 1px solid var(--border2); color: var(--text-bright); padding: 10px 14px; font-family: var(--mono); font-size: 11px; border-radius: var(--radius); outline: none; margin-bottom: 16px; }
.seed-search:focus { border-color: var(--green); }
.selected-seeds-panel { background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--radius); padding: 16px; margin-bottom: 24px; }
.selected-seeds-panel h4 { font-family: var(--mono); font-size: 10px; color: var(--green); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 1px; }
.selected-list { display: flex; gap: 8px; flex-wrap: wrap; }
.selected-tag { background: rgba(0,255,135,0.1); border: 1px solid rgba(0,255,135,0.3); color: var(--green); font-family: var(--mono); font-size: 10px; padding: 3px 10px; border-radius: 2px; display: flex; align-items: center; gap: 6px; }
.selected-tag button { background: none; border: none; color: var(--green); cursor: pointer; font-size: 14px; line-height: 1; padding: 0; }

/* Environment */
.env-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.env-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.env-stage { font-family: var(--mono); font-size: 9px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.env-param { display: flex; justify-content: space-between; align-items: center; padding: 4px 0; border-bottom: 1px solid var(--border); font-size: 12px; }
.env-param:last-child { border-bottom: none; }
.env-key { color: var(--text-dim); }
.env-val { font-family: var(--mono); color: var(--green); font-size: 11px; }

/* VPD table */
.vpd-table { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.vpd-row { display: grid; grid-template-columns: 120px 1fr 1fr 1fr 1fr 1fr; border-bottom: 1px solid var(--border); }
.vpd-row:last-child { border-bottom: none; }
.vpd-cell { padding: 8px 10px; font-family: var(--mono); font-size: 10px; }
.vpd-header .vpd-cell { background: var(--bg3); color: var(--green); font-size: 9px; text-transform: uppercase; letter-spacing: 1px; }
.vpd-cell.optimal { background: rgba(0,255,135,0.08); color: var(--green); }
.vpd-cell.good { background: rgba(255,179,71,0.06); color: var(--amber); }
.vpd-cell.danger { background: rgba(255,79,79,0.06); color: var(--red); }

/* Legal */
.legal-map { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.legal-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.legal-status { font-family: var(--mono); font-size: 10px; padding: 3px 8px; border-radius: 2px; display: inline-block; margin-bottom: 8px; }
.legal-ok { background: rgba(0,255,135,0.1); color: var(--green); border: 1px solid rgba(0,255,135,0.2); }
.legal-warn { background: rgba(255,179,71,0.1); color: var(--amber); border: 1px solid rgba(255,179,71,0.2); }
.legal-no { background: rgba(255,79,79,0.1); color: var(--red); border: 1px solid rgba(255,79,79,0.2); }

/* Buttons & toolbar */
.btn-secondary { background: transparent; border: 1px solid var(--border2); color: var(--text-dim); font-family: var(--mono); font-size: 10px; padding: 6px 14px; border-radius: var(--radius); cursor: pointer; transition: all 0.15s; }
.btn-secondary:hover { color: var(--green); border-color: var(--green); }
.toolbar { display: flex; gap: 8px; justify-content: flex-end; margin-bottom: 20px; }

/* Week table */
.week-table-wrap { overflow-x: auto; }
.week-table { min-width: 900px; }
.week-table td, .week-table th { font-size: 11px; padding: 6px 10px; }

/* Footer */
footer { margin-top: 48px; border-top: 1px solid var(--border); padding: 24px; font-family: var(--mono); font-size: 10px; color: var(--text-dim); text-align: center; line-height: 2; }

/* Mobile menu button */
.mobile-menu-btn {
  display: none; background: transparent; border: 1px solid var(--border2);
  color: var(--green); font-size: 20px; padding: 4px 10px; border-radius: var(--radius);
  cursor: pointer; line-height: 1;
}
.mobile-menu-btn:hover { border-color: var(--green); }

/* Accessibility — focus ring */
:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }
.tab-btn:focus-visible, .filter-btn:focus-visible, nav a:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }

/* Skip-to-content (screen reader) */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* Print / light theme */
@media print {
  body { background: #fff; color: #111; }
  header, .metrics-bar, .tabs-nav, footer, .mobile-menu-btn { display: none; }
  .tab-content { display: block !important; page-break-inside: avoid; }
  .card { border-color: #ccc; }
  .schematic { background: #f5f5f5; color: #111; }
  .stat-val, .metric-val { color: #111; }
}

/* Responsive */
@media (max-width: 768px) {
  header { flex-wrap: wrap; height: auto; padding: 10px 16px; gap: 8px; }
  .mobile-menu-btn { display: block; }
  .config-grid { grid-template-columns: 1fr 1fr; }
  .configurator { padding: 20px 16px; }
  .tabs-container { padding: 0 16px; }
  nav {
    display: none; position: absolute; top: 52px; left: 0; right: 0;
    background: rgba(8, 12, 8, 0.98); backdrop-filter: blur(16px);
    flex-direction: column; padding: 12px; gap: 4px;
    border-bottom: 1px solid var(--border); z-index: 199;
  }
  nav.mobile-open { display: flex; }
  nav a { padding: 8px 16px; border-bottom: 1px solid var(--border); }
  .vpd-row { grid-template-columns: 80px repeat(5, 1fr); }
}