frontend/static/css/theme.css

/* ============================================================
   SIGMA — RISK ANALYTICS PLATFORM
   Gryffindor × Corporate Finance Design System
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ── Design Tokens ── */
:root {
  /* Gryffindor Palette */
  --scarlet:         #AE0001;
  --scarlet-dark:    #740001;
  --scarlet-light:   #D4000A;
  --scarlet-glow:    rgba(174, 0, 1, 0.25);
  --gold:            #D3A625;
  --gold-light:      #F0C040;
  --gold-pale:       #EDD9A3;
  --gold-glow:       rgba(211, 166, 37, 0.2);
  --gold-border:     rgba(211, 166, 37, 0.18);
  --gold-border-bright: rgba(211, 166, 37, 0.45);

  /* Dark Finance Backgrounds */
  --bg-900:          #07080F;
  --bg-800:          #0C0F1A;
  --bg-700:          #111523;
  --bg-600:          #171C2E;
  --bg-500:          #1D2339;
  --bg-400:          #242B44;

  /* Typography */
  --text-100:        #F2EDE4;
  --text-200:        #C8BEA8;
  --text-300:        #8A8FA8;
  --text-400:        #545970;

  /* Borders */
  --border-dim:      rgba(255,255,255,0.05);
  --border:          rgba(211, 166, 37, 0.12);
  --border-bright:   rgba(211, 166, 37, 0.35);

  /* Status */
  --positive:        #22C55E;
  --positive-bg:     rgba(34, 197, 94, 0.10);
  --negative:        #EF4444;
  --negative-bg:     rgba(239, 68, 68, 0.10);
  --warning:         #F59E0B;
  --warning-bg:      rgba(245, 158, 11, 0.10);
  --neutral:         #64748B;

  /* Regime Colors */
  --regime-calm:           #22C55E;
  --regime-inflation:      #F59E0B;
  --regime-credit:         #EF4444;
  --regime-crisis:         #7C3AED;

  /* Sizing */
  --sidebar-w:          228px;
  --sidebar-collapsed:  60px;
  --header-h:           60px;
  --radius-sm:       6px;
  --radius-md:       10px;
  --radius-lg:       14px;
  --radius-xl:       20px;

  /* Transitions */
  --ease:            cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast:        150ms;
  --dur-normal:      250ms;
  --dur-slow:        400ms;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-800);
  color: var(--text-100);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-700); }
::-webkit-scrollbar-thumb { background: var(--bg-400); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ── Layout ── */
.app-wrapper { display: flex; min-height: 100vh; }

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-collapsed);
  min-height: 100vh;
  background: var(--bg-900);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow: hidden;
  transition: width var(--dur-normal) var(--ease), box-shadow var(--dur-normal) var(--ease);
}

.sidebar:hover {
  width: var(--sidebar-w);
  box-shadow: 4px 0 40px rgba(0,0,0,0.6);
}

.sidebar-brand {
  padding: 20px 12px 16px;
  border-bottom: 1px solid var(--border);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-shield {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--scarlet-dark), var(--scarlet));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 16px var(--scarlet-glow);
  position: relative;
  overflow: hidden;
}

.brand-shield::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 50%;
  background: rgba(255,255,255,0.08);
  border-radius: 8px 8px 0 0;
}

.brand-shield svg { position: relative; z-index: 1; }

.brand-text {
  line-height: 1.2;
  white-space: nowrap;
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease);
}
.sidebar:hover .brand-text { opacity: 1; transition-delay: 0.08s; }

.brand-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-sub {
  font-size: 9.5px;
  color: var(--text-300);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
}

/* Nav */
.sidebar-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }

.nav-section-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-400);
  padding: 12px 10px 6px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease);
}
.sidebar:hover .nav-section-label { opacity: 1; transition-delay: 0.05s; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-300);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  transition: all var(--dur-fast) var(--ease);
  margin-bottom: 2px;
  position: relative;
}

.nav-item:hover {
  background: var(--bg-500);
  color: var(--text-100);
}

.nav-item.active {
  background: linear-gradient(90deg, rgba(174,0,1,0.18), rgba(174,0,1,0.06));
  color: var(--gold-pale);
  border-left: 2px solid var(--gold);
  padding-left: 10px;
}

.nav-item .nav-icon {
  width: 18px; height: 18px;
  flex-shrink: 0;
  opacity: 0.7;
}

.nav-item.active .nav-icon { opacity: 1; color: var(--gold); }

/* Nav label text — fades in when sidebar expands */
.nav-label {
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease);
}
.sidebar:hover .nav-label { opacity: 1; transition-delay: 0.07s; }

.nav-badge {
  margin-left: auto;
  background: var(--scarlet);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease);
}
.sidebar:hover .nav-badge { opacity: 1; transition-delay: 0.09s; }

/* Sidebar footer */
.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  overflow: hidden;
}

/* Tiny regime dot — only visible when sidebar is collapsed */
.regime-dot-mini {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  animation: pulse 2s infinite;
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  align-self: center;
  margin: 2px 0;
}
.regime-dot-mini.calm           { background: var(--regime-calm); }
.regime-dot-mini.inflation_stress { background: var(--regime-inflation); }
.regime-dot-mini.credit_stress  { background: var(--regime-credit); }
.regime-dot-mini.crisis         { background: var(--regime-crisis); }
/* Hide mini dot when expanded */
.sidebar:hover .regime-dot-mini { opacity: 0; height: 0; margin: 0; }

/* Full footer content — hidden when collapsed */
.sidebar-footer-content {
  width: 100%;
  white-space: nowrap;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity var(--dur-fast) var(--ease), max-height var(--dur-normal) var(--ease);
}
.sidebar:hover .sidebar-footer-content {
  opacity: 1;
  max-height: 80px;
  transition-delay: 0.07s;
}

.sidebar-footer-label {
  font-size: 10px;
  color: var(--text-400);
  letter-spacing: 0.05em;
  margin-bottom: 5px;
  text-transform: uppercase;
}

.regime-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.regime-badge.calm         { background: rgba(34,197,94,0.15);   color: var(--regime-calm); }
.regime-badge.inflation_stress { background: rgba(245,158,11,0.15); color: var(--regime-inflation); }
.regime-badge.credit_stress    { background: rgba(239,68,68,0.15);  color: var(--regime-credit); }
.regime-badge.crisis        { background: rgba(124,58,237,0.15); color: var(--regime-crisis); }

.regime-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ── Main Content ── */
.main-content {
  margin-left: var(--sidebar-collapsed);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--dur-normal) var(--ease);
  will-change: margin-left;
}

/* Sidebar pushes content when expanded */
.sidebar:hover ~ .main-content {
  margin-left: var(--sidebar-w);
}

/* ── Top Header ── */
.top-header {
  height: var(--header-h);
  background: var(--bg-900);
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
}

.header-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-100);
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-stat {
  text-align: right;
}

.header-stat-label {
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-400);
}

.header-stat-value {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-100);
}

.header-divider {
  width: 1px;
  height: 28px;
  background: var(--border);
}

/* ── Page Body ── */
.page-body { padding: 28px; flex: 1; }

/* ── Section Header ── */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 20px;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-100);
  line-height: 1.2;
}

.section-subtitle {
  font-size: 12px;
  color: var(--text-300);
  margin-top: 3px;
}

.section-rule {
  display: block;
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
  margin-top: 6px;
}

/* ── Cards ── */
.card {
  background: var(--bg-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--dur-normal) var(--ease),
              box-shadow var(--dur-normal) var(--ease);
}

.card:hover {
  border-color: var(--border-bright);
  box-shadow: 0 0 24px var(--gold-glow);
}

.card-header {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.card-body { padding: 20px; }

/* Card inner spacing — margin insets the element itself (not just its content) */
.card > *:not(.card-header) {
  margin-left: 20px;
  margin-right: 20px;
}
.card > *:not(.card-header):first-of-type { margin-top: 16px; }
.card > *:last-child:not(.card-header)    { margin-bottom: 20px; }

/* Tables and chart containers need special handling */
.card > .data-table  { margin-left: 0; margin-right: 0; }
.card > .chart-container { margin-left: 8px; margin-right: 8px; }

/* ── Metric Cards ── */
.metric-card {
  background: var(--bg-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
  transition: all var(--dur-normal) var(--ease);
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

.metric-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3), 0 0 20px var(--gold-glow);
}

.metric-label {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-400);
  margin-bottom: 8px;
}

.metric-value {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 26px;
  font-weight: 600;
  color: var(--text-100);
  line-height: 1;
}

.metric-value.positive { color: var(--positive); }
.metric-value.negative { color: var(--negative); }
.metric-value.gold     { color: var(--gold); }

.metric-sub {
  font-size: 11px;
  color: var(--text-300);
  margin-top: 5px;
}

/* ── Tables ── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-bright);
  white-space: nowrap;
  background: var(--bg-600);
}

.data-table tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-dim);
  color: var(--text-200);
}

.data-table tbody tr:last-child td { border-bottom: none; }

.data-table tbody tr:hover td {
  background: var(--bg-600);
  color: var(--text-100);
}

.data-table .num {
  font-family: 'IBM Plex Mono', monospace;
  text-align: right;
  white-space: nowrap;
}

.data-table .positive { color: var(--positive); }
.data-table .negative { color: var(--negative); }

/* ── Stress Type Badges ── */
.stress-badge {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 3px;
}

.stress-badge.historical   { background: rgba(211,166,37,0.15); color: var(--gold); }
.stress-badge.regime_shock { background: rgba(174,0,1,0.15);   color: #FF7777; }
.stress-badge.macro_scenario{ background: rgba(59,130,246,0.15); color: #60A5FA; }

/* ── Chart Containers ── */
.chart-container {
  position: relative;
  width: 100%;
  /* height must be set via inline style or a specific class */
}

/* Canvas must be absolutely positioned so it never affects its container's
   layout — this breaks the Chart.js ResizeObserver ↔ layout feedback loop */
.chart-container canvas {
  position: absolute !important;
  top: 0; left: 0;
  width: 100% !important;
  height: 100% !important;
}

.chart-placeholder {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-400);
  font-size: 12px;
}

/* ── Weight Sliders ── */
.weight-slider-group { margin-bottom: 16px; }

.weight-slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.weight-asset-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-200);
}

.weight-value-display {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold);
  min-width: 48px;
  text-align: right;
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--bg-400);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--gold);
  cursor: pointer;
  box-shadow: 0 0 8px var(--gold-glow);
  transition: transform var(--dur-fast) var(--ease);
}

input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }

/* ── Buttons ── */
.btn-gold {
  background: linear-gradient(135deg, var(--gold), #B8900E);
  color: var(--bg-900);
  border: none;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.btn-gold:hover {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--gold-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text-300);
  border: 1px solid var(--border);
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold-pale);
}

.btn-scarlet {
  background: linear-gradient(135deg, var(--scarlet-light), var(--scarlet-dark));
  color: #fff;
  border: none;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.btn-scarlet:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--scarlet-glow);
}

/* ── Scenario Cards ── */
.scenario-card {
  background: var(--bg-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 15px;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
  margin-bottom: 8px;
}

.scenario-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-600);
}

.scenario-card.selected {
  border-color: var(--gold);
  background: linear-gradient(90deg, rgba(211,166,37,0.08), rgba(211,166,37,0.02));
  box-shadow: 0 0 0 1px var(--gold), 0 0 16px var(--gold-glow);
}

.scenario-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-100);
  margin-bottom: 3px;
}

.scenario-return {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  font-weight: 600;
}

/* ── Progress Bars ── */
.weight-bar {
  height: 5px;
  border-radius: 3px;
  margin-top: 5px;
  transition: width 0.4s var(--ease);
}

/* ── Narrative Box ── */
.narrative-box {
  background: linear-gradient(135deg, var(--bg-600), var(--bg-700));
  border: 1px solid var(--border-bright);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin-bottom: 14px;
}

.narrative-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 7px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.narrative-text {
  font-size: 13px;
  color: var(--text-200);
  line-height: 1.65;
}

/* ── Factor Exposure Bars ── */
.factor-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border-dim);
}

.factor-row:last-child { border-bottom: none; }

.factor-label {
  font-size: 12px;
  color: var(--text-200);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.factor-bar-track {
  flex: 2;
  height: 4px;
  background: var(--bg-400);
  border-radius: 2px;
  overflow: hidden;
}

.factor-bar-fill {
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transition: width 0.6s var(--ease);
}

.factor-shap {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--text-300);
  width: 52px;
  text-align: right;
}

/* ── Regime Timeline ── */
.regime-timeline {
  display: flex;
  height: 20px;
  border-radius: 4px;
  overflow: hidden;
  gap: 1px;
  background: var(--bg-400);
}

.regime-segment,
.regime-tick {
  flex: 1;
  height: 100%;
  transition: opacity 0.2s;
  cursor: default;
  min-width: 3px;
}

.regime-segment:hover,
.regime-tick:hover { opacity: 0.7; }

/* Regime tick colours — match Phase 3 HMM labels */
.regime-tick.calm,
.regime-segment.calm            { background: var(--regime-calm); }
.regime-tick.inflation_stress,
.regime-segment.inflation_stress { background: var(--regime-inflation); }
.regime-tick.credit_stress,
.regime-segment.credit_stress   { background: var(--regime-credit); }
.regime-tick.crisis,
.regime-segment.crisis          { background: var(--regime-crisis); }
/* fallbacks for Phase 10 names if ever mixed */
.regime-tick.bull_trend         { background: var(--regime-calm); }
.regime-tick.low_vol_bull       { background: #48BB78; }
.regime-tick.high_vol           { background: #ED8936; }
.regime-tick.recovery           { background: var(--gold); }
.regime-tick.bear_market        { background: var(--regime-crisis); }

/* ── Loading Spinner ── */
.chart-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 40px;
  color: var(--text-400);
  font-size: 12px;
}

.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* ── Methodology ── */
.phase-card {
  display: flex;
  gap: 16px;
  padding: 18px;
  background: var(--bg-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  transition: border-color var(--dur-normal) var(--ease);
}

.phase-card:hover { border-color: var(--border-bright); }

.phase-number {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--scarlet-dark), var(--scarlet));
  display: flex; align-items: center; justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--gold-pale);
  flex-shrink: 0;
  box-shadow: 0 0 12px var(--scarlet-glow);
}

.phase-info { flex: 1; }

.phase-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-100);
  margin-bottom: 3px;
}

.phase-desc {
  font-size: 12px;
  color: var(--text-300);
  line-height: 1.55;
}

/* ── Utility ── */
.text-gold      { color: var(--gold); }
.text-scarlet   { color: var(--scarlet-light); }
.text-positive  { color: var(--positive); }
.text-negative  { color: var(--negative); }
.text-muted     { color: var(--text-300); }
.font-mono      { font-family: 'IBM Plex Mono', monospace; }
.font-display   { font-family: 'Space Grotesk', sans-serif; }
.divider        { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .mobile-menu-btn { display: flex; }
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-100);
  cursor: pointer;
  padding: 4px;
}

/* ── Grid helpers ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-2-1 { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
.grid-1-2 { display: grid; grid-template-columns: 1fr 2fr; gap: 16px; }

@media (max-width: 900px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-2-1, .grid-1-2 { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .page-body { padding: 16px; }
}

/* ── Tag / badge chips ── */
.tag {
  display: inline-block;
  background: var(--bg-500);
  color: var(--text-300);
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-right: 3px;
}

/* ── Monospace cell ── */
.mono {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
}

/* ── Positive / negative colour variables ── */
:root {
  --positive: #2EC4A0;
  --negative: #E8455A;
}