/* ============================================================
   THE FORGE - Custom CSS
   MA476 Joint Distributions
   ============================================================ */

/* Navbar branding */
.navbar {
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}

.navbar-brand {
  font-weight: 700 !important;
  letter-spacing: 0.5px;
  padding: 0 !important;
  margin: 0 8px 0 0 !important;
}

.navbar .nav-link {
  padding-top: 4px !important;
  padding-bottom: 4px !important;
}

/* Forge logo: anvil over fire */
.forge-brand {
  display: flex;
  align-items: center;
  gap: 0;
  line-height: 1;
  position: relative;
}

.forge-logo {
  position: relative;
  width: 95px;
  height: 62px;
  flex-shrink: 0;
  overflow: visible;
}

.forge-anvil {
  position: absolute;
  top: 0;
  left: 0;
  width: 95px;
  height: auto;
  z-index: 2;
  filter: drop-shadow(0 0 5px rgba(232, 114, 58, 0.5));
}

.forge-fire {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: auto;
  height: 62px;
  z-index: 3;
  opacity: 0.9;
}

.forge-text {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding-left: 8px;
}

.forge-title {
  color: #C5A55A;
  font-weight: 800;
  font-size: 1.1em;
  letter-spacing: 1px;
}

.forge-subtitle {
  color: #8A9DAF;
  font-weight: 400;
  font-size: 0.85em;
}

/* Card styling */
.card {
  border: 1px solid #444 !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.card-header {
  background-color: rgba(197,165,90,0.12) !important;
  border-bottom: 1px solid #444 !important;
  font-weight: 600;
  font-size: 0.9em;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #C5A55A !important;
}

/* Sidebar */
.bslib-sidebar-layout > .sidebar {
  background-color: #1E1E1E !important;
  border-right: 1px solid #444 !important;
}

.sidebar .form-label, .sidebar label {
  color: #C5A55A !important;
  font-weight: 600;
  font-size: 0.85em;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* Slider track */
.irs--shiny .irs-bar {
  background: #C5A55A !important;
  border-color: #C5A55A !important;
}

.irs--shiny .irs-handle {
  background: #E8723A !important;
  border-color: #E8723A !important;
}

.irs--shiny .irs-single {
  background: #C5A55A !important;
  color: #1E1E1E !important;
}

/* Buttons */
.btn-warning {
  background-color: #E8723A !important;
  border-color: #E8723A !important;
  color: #F5F0E6 !important;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-warning:hover {
  background-color: #D4622E !important;
  border-color: #D4622E !important;
}

/* Active nav tab */
.navbar .nav-link.active {
  color: #C5A55A !important;
  border-bottom: 2px solid #C5A55A;
}

.navbar .nav-link {
  color: #A0A0A0 !important;
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.85em;
  letter-spacing: 0.5px;
}

.navbar .nav-link:hover {
  color: #F5F0E6 !important;
}

/* Horizontal rules */
hr {
  border-color: #444 !important;
}

/* Select inputs */
.selectize-input {
  background-color: #404040 !important;
  border-color: #555 !important;
  color: #F5F0E6 !important;
}

.selectize-dropdown {
  background-color: #404040 !important;
  border-color: #555 !important;
  color: #F5F0E6 !important;
}

.selectize-dropdown .option {
  color: #F5F0E6 !important;
}

.selectize-dropdown .option.active {
  background-color: #C5A55A !important;
  color: #1E1E1E !important;
}

/* Checkbox styling */
.form-check-input:checked {
  background-color: #C5A55A !important;
  border-color: #C5A55A !important;
}

/* Radio button styling */
.form-check-input[type="radio"]:checked {
  background-color: #C5A55A !important;
  border-color: #C5A55A !important;
}

/* Progress bar */
.progress-bar {
  background-color: #E8723A !important;
}

/* ============================================================
   The Blueprint - Offcanvas Drawer
   ============================================================ */

.blueprint-fab {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1040;
  background: rgba(197,165,90,0.9);
  color: #1E1E1E;
  border: none;
  border-radius: 24px;
  padding: 10px 18px;
  font-weight: 700;
  font-size: 0.8em;
  letter-spacing: 0.5px;
  cursor: pointer;
  box-shadow: 0 3px 12px rgba(0,0,0,0.4);
  transition: all 0.2s ease;
}

.blueprint-fab:hover {
  background: #C5A55A;
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
  transform: translateY(-1px);
}

.blueprint-fab:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(197,165,90,0.4);
}

.blueprint-offcanvas {
  width: 420px !important;
  max-width: 90vw;
  background-color: #1E1E1E !important;
  border-left: 2px solid #C5A55A !important;
}

.blueprint-offcanvas-header {
  background: rgba(197,165,90,0.08);
  border-bottom: 1px solid rgba(197,165,90,0.2);
  padding: 14px 20px;
}

.blueprint-offcanvas-title {
  color: #C5A55A !important;
  font-size: 0.9em !important;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.blueprint-content {
  padding: 18px 20px;
  color: #F5F0E6;
  font-size: 0.9em;
  line-height: 1.7;
}

.blueprint-content h5 {
  color: #C5A55A;
  font-size: 0.85em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 16px 0 8px 0;
  border-bottom: 1px solid rgba(197,165,90,0.2);
  padding-bottom: 4px;
}

.blueprint-content h5:first-child {
  margin-top: 0;
}

.blueprint-eq {
  background: rgba(255,255,255,0.04);
  border-left: 3px solid #C5A55A;
  border-radius: 0 4px 4px 0;
  padding: 10px 16px;
  margin: 8px 0;
  font-size: 1em;
  overflow-x: auto;
}

.blueprint-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.blueprint-content .katex {
  color: #F5F0E6;
  font-size: 1.1em;
}

.blueprint-eq .katex {
  font-size: 1.15em;
}

/* ============================================================
   Reliability Block Diagram
   ============================================================ */

.reliability-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 16px;
  min-height: 120px;
}

.component-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 14px;
  border: 2px solid #C5A55A;
  border-radius: 6px;
  background: rgba(197,165,90,0.08);
  min-width: 55px;
  text-align: center;
}

.component-label {
  color: #F5F0E6;
  font-weight: 700;
  font-size: 0.9em;
}

.component-rate {
  color: #A0A0A0;
  font-size: 0.75em;
}

.connector-h {
  width: 28px;
  height: 2px;
  background: #8A9DAF;
  flex-shrink: 0;
}

.parallel-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  border-left: 2px solid #4A90D9;
  border-right: 2px solid #4A90D9;
  padding: 10px 14px;
  border-radius: 4px;
  position: relative;
}

.parallel-group::before,
.parallel-group::after {
  content: '';
  position: absolute;
  width: 2px;
  height: 100%;
  background: #4A90D9;
}

/* ============================================================
   Sketch the PDF Challenge (The Anvil)
   ============================================================ */

/* ============================================================
   Compact metrics (shared pattern)
   ============================================================ */

.metrics-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 16px;
}

.metrics-grid-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.metrics-grid-4 {
  grid-template-columns: 1fr 1fr 1fr 1fr;
}

.metric-card {
  border: 1px solid #444;
  border-radius: 6px;
  text-align: center;
  background: rgba(255,255,255,0.03);
}

.metric-card .card-header {
  padding: 6px 8px;
  font-size: 0.75em;
}

.metric-card .card-body {
  padding: 10px 8px;
}

.metric-value {
  color: #C5A55A;
  font-weight: 700;
  font-size: 1.2em;
}

/* ============================================================
   Independence verdict panel
   ============================================================ */

.verdict-panel {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px;
  border: 1px solid #444;
  border-radius: 6px;
  background: rgba(255,255,255,0.02);
}

.verdict-cell {
  text-align: center;
  padding: 8px;
}

.verdict-label {
  color: #A0A0A0;
  font-size: 0.75em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.verdict-value {
  font-size: 1.1em;
  font-weight: 600;
}

.verdict-independent {
  color: #4CAF50;
  font-weight: 700;
  font-size: 1.1em;
}

.verdict-dependent {
  color: #E8723A;
  font-weight: 700;
  font-size: 1.1em;
}

/* ============================================================
   KaTeX display in main content
   ============================================================ */

.katex-display-box {
  background: rgba(255,255,255,0.04);
  border-left: 3px solid #C5A55A;
  border-radius: 0 4px 4px 0;
  padding: 12px 16px;
  margin: 8px 0;
  overflow-x: auto;
}