/**
 * MaterialForge — Design System v3.0
 * Professional Discovery Lab — Fixed Layout
 */

:root {
  --bg-primary:   #0a0e14;
  --bg-secondary: #111823;
  --bg-panel:     #161f2d;
  --bg-border:    #1e293b;
  
  --accent:       #00d4aa;
  --accent-glow:  rgba(0, 212, 170, 0.4);
  --accent2:      #3b82f6;
  --accent3:      #f59e0b;
  
  --text-1:       #f8fafc;
  --text-2:       #94a3b8;
  --text-3:       #64748b;
  
  --atom-A:       #ef4444;
  --atom-B:       #3b82f6;
  --atom-C:       #f59e0b;
  --atom-P:       #8b5cf6;
  
  --mono: 'JetBrains Mono', monospace;
  --sans: 'Inter', system-ui, sans-serif;
  
  --shadow-sm: 0 4px 12px rgba(0,0,0,0.5);
  --glass: rgba(22, 31, 45, 0.7);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background-color: var(--bg-primary);
  color: var(--text-1);
  font-family: var(--sans);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ── HEADER & NAVIGATION ── */
header {
  height: 52px;
  min-height: 52px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--bg-border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 24px;
  z-index: 100;
  flex-shrink: 0;
}

.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: #000; font-size: 15px;
}
.logo-text { font-size: 15px; font-weight: 700; letter-spacing: -0.5px; }
.logo-sub { font-size: 9px; color: var(--text-3); font-weight: 600; letter-spacing: 1px; margin-top: -2px; }

.nav-tabs { display: flex; height: 100%; align-items: stretch; }
.nav-tab {
  background: transparent; border: none;
  padding: 0 14px; color: var(--text-2);
  font-weight: 600; font-size: 11px; letter-spacing: 0.5px;
  cursor: pointer; position: relative; transition: color 0.2s;
  white-space: nowrap;
}
.nav-tab:hover { color: var(--text-1); }
.nav-tab.active { color: var(--accent); }
.nav-tab.active::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px; background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.header-status { margin-left: auto; display: flex; align-items: center; gap: 10px; background: rgba(0,0,0,0.2); padding: 5px 10px; border-radius: 6px; flex-shrink: 0; }
.status-dot { width: 7px; height: 7px; background: #22c55e; border-radius: 50%; box-shadow: 0 0 8px #22c55e; }
.status-dot.offline { background: #ef4444; box-shadow: 0 0 8px #ef4444; }
#status-text { font-size: 9px; font-weight: 700; color: var(--text-2); white-space: nowrap; }

/* ── TAB CONTENT ENGINE ── */
.tab-content { display: none; flex: 1; overflow: hidden; position: relative; }
.tab-content.active { display: flex; }

/* ── PLAYGROUND LAYOUT ── */
/* Main grid: left=lattice+charts, right=sidebar controls */
.app {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  grid-template-rows: auto 1fr;
  height: 100%;
  width: 100%;
  overflow: hidden;
}

/* KPI Strip — spans full width */
.kpi-strip {
  grid-column: 1 / -1;
  display: flex;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--bg-border);
  overflow-x: auto;
  flex-shrink: 0;
}
.kpi-card { padding: 10px 16px; border-right: 1px solid var(--bg-border); flex: 1; min-width: 100px; }
.kpi-label { font-size: 9px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-3); font-weight: 700; margin-bottom: 2px; }
.kpi-value { font-size: 17px; font-weight: 700; font-family: var(--mono); color: var(--accent); }
.phase-crystalline { color: var(--accent); }
.phase-polycrystalline { color: var(--accent2); }
.phase-amorphous { color: var(--text-3); }

/* ── MAIN AREA (left) — Lattice + Charts ── */
.main {
  background: var(--bg-primary);
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  gap: 16px;
}

.viz-area {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

/* Top row: lattice + properties side by side */
.viz-row-top {
  display: grid;
  grid-template-columns: minmax(420px, 1fr) minmax(320px, 420px);
  gap: 20px;
  align-items: stretch;
}

.lattice-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.lattice-wrap {
  background: #080a0f;
  border-radius: 16px;
  padding: 18px;
  border: 1px solid var(--bg-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-sm);
  width: min(100%, 540px);
  margin: 0 auto;
}

.lattice-meta {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 9px;
}
.lattice-title {
  align-self: stretch;
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-2);
  text-transform: uppercase;
}
#lattice-canvas {
  width: min(100%, 380px);
  height: auto;
  aspect-ratio: 1;
  border-radius: 10px;
  cursor: crosshair;
  image-rendering: pixelated;
  box-shadow: 0 0 30px rgba(0,0,0,0.5);
  background: radial-gradient(circle at center, rgba(0,212,170,0.07), transparent 60%);
}

.lattice-legend {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 12px;
  align-self: stretch;
}
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 9px; font-weight: 700; color: var(--text-3); text-transform: uppercase; }
.legend-dot { width: 8px; height: 8px; border-radius: 3px; flex-shrink: 0; }

.interaction-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.interaction-chip {
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--text-2);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.lattice-summary,
.properties-card {
  width: min(100%, 540px);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.summary-block,
.workbench-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px;
  border-radius: 10px;
  background: rgba(8, 12, 20, 0.7);
  border: 1px solid rgba(255,255,255,0.05);
}

.summary-label {
  color: var(--text-3);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.summary-value {
  color: var(--text-1);
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
}

/* Chart Cards */
.chart-card {
  background: linear-gradient(180deg, rgba(22, 31, 45, 0.96), rgba(13, 19, 29, 0.96));
  border-radius: 16px;
  padding: 18px;
  border: 1px solid rgba(148,163,184,0.10);
  box-shadow: 0 16px 40px rgba(0,0,0,0.28);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chart-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── SIDEBAR (right) — Controls ── */
.sidebar {
  background: var(--bg-secondary);
  border-left: 1px solid var(--bg-border);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  height: 100%;
}

.panel {
  background: var(--bg-panel);
  border-radius: 10px;
  padding: 14px;
  border: 1px solid rgba(255,255,255,0.03);
}
.panel-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-3);
  margin-bottom: 12px;
  border-bottom: 1px solid var(--bg-border);
  padding-bottom: 6px;
}

/* ── FORM ELEMENTS ── */
.fields { display: flex; flex-direction: column; gap: 12px; }
.field label {
  display: block;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-3);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
select, input[type="range"] {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--bg-border);
  color: #fff;
  padding: 8px;
  border-radius: 6px;
  font-size: 12px;
  outline: none;
}
input[type="range"] { padding: 0; }

.btn {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary { background: var(--accent); color: #000; box-shadow: 0 4px 12px var(--accent-glow); }
.btn-primary:active { transform: scale(0.98); }
.btn-secondary { background: rgba(255,255,255,0.05); color: var(--text-2); border: 1px solid var(--bg-border); }

.action-tabs {
  display: flex;
  background: var(--bg-primary);
  border-radius: 6px;
  padding: 3px;
  border: 1px solid var(--bg-border);
}
.action-tab {
  flex: 1;
  border: none;
  padding: 6px;
  font-size: 9px;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  background: transparent;
  color: var(--text-3);
}
.action-tab.active { background: var(--accent2); color: #fff; }

.atom-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.atom-btn {
  background: var(--bg-primary);
  border: 1px solid var(--bg-border);
  border-radius: 6px;
  padding: 6px 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: transform 0.1s;
}
.atom-btn .symbol {
  width: 24px; height: 24px;
  border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: #fff; font-size: 12px;
  background: var(--bg-border);
}
.atom-btn.selected { border-color: var(--accent); background: rgba(0, 212, 170, 0.05); }
.atom-btn.selected .symbol { color: #000; }
.atom-btn[data-atom="A"].selected .symbol { background: var(--atom-A); }
.atom-btn[data-atom="B"].selected .symbol { background: var(--atom-B); }
.atom-btn[data-atom="C"].selected .symbol { background: var(--atom-C); }
.atom-btn[data-atom="P"].selected .symbol { background: var(--atom-P); }
.atom-btn span:last-child { font-size: 8px; font-weight: 700; color: var(--text-3); text-transform: uppercase; }

.workbench-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.control-note {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border-radius: 10px;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--bg-border);
  color: var(--text-2);
  font-size: 11px;
  line-height: 1.5;
}

/* Telemetry Box */
.log-box {
  height: 100px;
  overflow-y: auto;
  background: #000;
  border-radius: 6px;
  padding: 10px;
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1.6;
}
.log-entry { margin-bottom: 3px; display: flex; border-bottom: 1px solid rgba(255,255,255,0.03); padding-bottom: 3px; }
.log-ts { color: var(--text-3); width: 60px; flex-shrink: 0; }
.log-ok { color: var(--accent); }
.log-err { color: #ef4444; }

/* Progress Meters */
.prop-meters { display: flex; flex-direction: column; gap: 12px; }
.prop-row { display: flex; flex-direction: column; gap: 4px; }
.prop-header { display: flex; justify-content: space-between; align-items: center; }
.prop-name { font-size: 10px; font-weight: 600; color: var(--text-2); }
.prop-vals { font-size: 11px; font-family: var(--mono); color: var(--text-1); font-weight: 700; }
.prop-bar-bg { height: 6px; background: rgba(255,255,255,0.05); border-radius: 3px; position: relative; overflow: hidden; }
.prop-bar-fill { height: 100%; transition: width 0.4s ease; border-radius: 3px; }
.prop-bar-target { position: absolute; top: 0; height: 100%; width: 2px; background: #fff; z-index: 2; transition: left 0.4s ease; box-shadow: 0 0 6px #fff; }

/* ── DOCUMENTATION & TABLES ── */
.doc-container {
  flex: 1; overflow-y: auto; padding: 40px 60px;
  max-width: 1000px; margin: 0 auto; line-height: 1.6;
}
.doc-container section { margin-bottom: 48px; }
.doc-container h2 { font-size: 24px; margin-bottom: 16px; color: var(--accent); }
.doc-container h3 { font-size: 16px; margin-top: 24px; color: var(--text-1); text-transform: uppercase; letter-spacing: 1px; }
.doc-container p { color: var(--text-2); margin-bottom: 16px; }

.doc-hero {
  padding: 28px;
  border-radius: 20px;
  background:
    radial-gradient(circle at top right, rgba(0, 212, 170, 0.16), transparent 30%),
    linear-gradient(180deg, rgba(17, 24, 35, 0.95), rgba(10, 14, 20, 0.96));
  border: 1px solid var(--bg-border);
  box-shadow: var(--shadow-sm);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.08;
  letter-spacing: -1.3px;
  margin-bottom: 14px;
}

.hero-text {
  max-width: 760px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-2);
}

.hero-grid,
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.stat-tile,
.metric-card {
  padding: 16px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(12, 18, 28, 0.92), rgba(8, 12, 20, 0.82));
  border: 1px solid rgba(255,255,255,0.07);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}

.doc-grid,
.readme-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  align-items: start;
}

.info-card {
  padding: 22px;
  border-radius: 16px;
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  box-shadow: var(--shadow-sm);
}

.info-card h2 {
  margin-bottom: 10px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.pill {
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(0, 212, 170, 0.08);
  border: 1px solid rgba(0, 212, 170, 0.18);
  color: var(--text-1);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.link-list a {
  color: var(--text-1);
  text-decoration: none;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  transition: border-color 0.2s, transform 0.2s, color 0.2s;
}

.link-list a:hover {
  color: var(--accent);
  border-color: rgba(0, 212, 170, 0.45);
  transform: translateY(-1px);
}

.insight-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.insight-item {
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(8, 12, 20, 0.68);
  border: 1px solid rgba(255,255,255,0.05);
  color: var(--text-2);
}

.table-wrap { overflow: hidden; border-radius: 8px; border: 1px solid var(--bg-border); background: var(--bg-panel); margin: 20px 0; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { background: rgba(0,0,0,0.2); padding: 12px 16px; text-align: left; color: var(--text-3); font-weight: 700; text-transform: uppercase; font-size: 11px; }
td { padding: 12px 16px; border-top: 1px solid var(--bg-border); }
tr:hover { background: rgba(255,255,255,0.02); }

#phase-pie-chart,
#scenario-bar-chart,
#reward-chart {
  filter: saturate(1.05);
}

code, pre { font-family: var(--mono); background: #000; padding: 4px 8px; border-radius: 4px; font-size: 13px; color: var(--accent2); }
pre { padding: 16px; display: block; border: 1px solid var(--bg-border); margin: 12px 0; overflow-x: auto; color: #fff; }

/* ── FOOTER ── */
.bottom-bar {
  height: 28px;
  min-height: 28px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--bg-border);
  font-size: 9px;
  color: var(--text-3);
  display: flex;
  align-items: center;
  padding: 0 20px;
  font-weight: 600;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

/* Overlay & Toasts */
.loading-overlay {
  position: fixed; inset: 0;
  background: var(--bg-primary);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transition: opacity 0.5s, visibility 0.5s;
}
.loading-overlay.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.spinner {
  width: 36px; height: 36px;
  border: 3px solid rgba(0, 212, 170, 0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #fff;
  color: #000;
  padding: 8px 18px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 11px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 2000;
}
.toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.toast.success { background: var(--accent); }
.toast.error { background: #ef4444; color: #fff; }

@media (max-width: 1100px) {
  .app {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-left: none;
    border-top: 1px solid var(--bg-border);
  }

  .viz-row-top {
    grid-template-columns: 1fr;
  }

  .lattice-wrap,
  .lattice-summary,
  .properties-card {
    width: 100%;
  }
}

@media (max-width: 700px) {
  header {
    padding: 0 14px;
    gap: 12px;
  }

  .nav-tabs {
    display: none;
  }

  .main {
    padding: 16px;
  }

  .doc-container {
    padding: 24px 18px;
  }

  .hero-grid,
  .metrics-grid,
  .doc-grid,
  .readme-grid {
    grid-template-columns: 1fr;
  }

  .summary-grid,
  .workbench-grid,
  .lattice-legend {
    grid-template-columns: 1fr 1fr;
  }

  .header-status {
    padding: 5px 8px;
  }
}