/* ===========================================================================
   SpaceX Launch Dashboard — dark theme
   Tokens are mirrored in spacex_dash_app.py for the Plotly figures.
   ======================================================================== */

:root {
  --bg: #0b0e14;
  --surface: #11151c;
  --surface-2: #161b24;
  --surface-glass: rgba(22, 27, 36, 0.66);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e8ecf3;
  --text-muted: #93a0b4;
  --accent: #4da3ff;
  --accent-strong: #2f7fe0;
  --accent-soft: rgba(77, 163, 255, 0.14);
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
  --font-body: 'Inter', -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
}

/* ---- Base ------------------------------------------------------------- */

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg) !important;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Subtle nebula glow + starfield, fixed behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(ellipse 60% 40% at 18% -5%, rgba(77, 163, 255, 0.10), transparent 60%),
    radial-gradient(ellipse 50% 35% at 85% 0%, rgba(139, 124, 246, 0.08), transparent 60%),
    radial-gradient(1px 1px at 25px 35px, rgba(255, 255, 255, 0.32), transparent 1.5px),
    radial-gradient(1px 1px at 160px 120px, rgba(255, 255, 255, 0.22), transparent 1.5px),
    radial-gradient(1.5px 1.5px at 310px 60px, rgba(255, 255, 255, 0.28), transparent 2px),
    radial-gradient(1px 1px at 420px 200px, rgba(255, 255, 255, 0.18), transparent 1.5px),
    radial-gradient(1px 1px at 530px 90px, rgba(255, 255, 255, 0.25), transparent 1.5px);
  background-size:
    100% 100%, 100% 100%,
    620px 620px, 620px 620px, 620px 620px, 620px 620px, 620px 620px;
}

/* ---- Header ------------------------------------------------------------ */

.app-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 14, 20, 0.78);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.app-header-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  flex: none;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  color: #fff;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-strong), #6f5cf1);
  box-shadow: 0 0 18px rgba(77, 163, 255, 0.35);
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
  white-space: nowrap;
}

.brand-tagline {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.github-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.95rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--surface-2);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.github-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.github-btn .bi {
  font-size: 1.1rem;
}

/* ---- Page shell -------------------------------------------------------- */

.app-shell {
  max-width: 1320px;
  margin: 0 auto;
  padding: 1.75rem 1.5rem 2.5rem;
}

.app-footer {
  margin-top: 2.25rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

/* ---- Glass cards -------------------------------------------------------- */

.glass-card {
  height: 100%;
  padding: 1.4rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.chart-card {
  padding-bottom: 0.9rem;
}

/* ---- Section headers ----------------------------------------------------- */

.section-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.1rem;
}

.icon-chip {
  width: 36px;
  height: 36px;
  flex: none;
  display: grid;
  place-items: center;
  font-size: 1rem;
  color: var(--accent);
  border-radius: 10px;
  background: var(--accent-soft);
  border: 1px solid rgba(77, 163, 255, 0.25);
}

.section-title {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.section-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ---- KPI tiles ------------------------------------------------------------ */

.kpi-row {
  margin-bottom: 1rem;
}

.kpi-card {
  padding: 1.15rem 1.3rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.kpi-card:hover {
  transform: translateY(-3px);
  border-color: rgba(77, 163, 255, 0.35);
}

.kpi-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.kpi-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-muted);
}

.kpi-icon {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  color: var(--accent);
  border-radius: 9px;
  background: var(--accent-soft);
}

.kpi-value {
  margin-top: 0.45rem;
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
}

.kpi-detail {
  margin-top: 0.2rem;
  font-size: 0.76rem;
  color: var(--text-muted);
}

/* ---- Filter controls -------------------------------------------------------- */

.control-label {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
}

.control-label .bi {
  color: var(--accent);
}

.control-hint {
  margin-top: 0.55rem;
  font-size: 0.74rem;
  color: var(--text-muted);
}

/* ---- dcc.Dropdown dark override (react-select v1 classes) ----------------- */

.themed-dropdown .Select-control {
  height: 44px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
}

.themed-dropdown .Select-placeholder,
.themed-dropdown .Select--single > .Select-control .Select-value {
  line-height: 42px;
  padding-left: 14px;
  color: var(--text);
}

.themed-dropdown .Select-value-label,
.themed-dropdown .Select-input > input {
  color: var(--text) !important;
}

.themed-dropdown .Select-input {
  height: 42px;
}

.themed-dropdown .Select-arrow {
  border-top-color: var(--text-muted);
}

.themed-dropdown .Select.is-open > .Select-control .Select-arrow {
  border-bottom-color: var(--accent);
}

.themed-dropdown .Select.is-focused > .Select-control,
.themed-dropdown .Select.is-open > .Select-control {
  background: var(--surface-2);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.themed-dropdown .Select-menu-outer {
  margin-top: 6px;
  background: #151a23;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.themed-dropdown .Select-menu {
  background: transparent;
}

.themed-dropdown .Select-option,
.themed-dropdown .VirtualizedSelectOption {
  background: transparent;
  color: var(--text-muted);
  font-size: 0.88rem;
  cursor: pointer;
}

.themed-dropdown .Select-option.is-focused,
.themed-dropdown .VirtualizedSelectFocusedOption {
  background: var(--accent-soft);
  color: var(--text);
}

.themed-dropdown .Select-option.is-selected,
.themed-dropdown .VirtualizedSelectSelectedOption {
  background: rgba(77, 163, 255, 0.22);
  color: var(--text);
  font-weight: 600;
}

/* ---- dcc.RangeSlider dark override (rc-slider classes) --------------------- */

#payload-slider {
  margin-top: 0.4rem;
}

#payload-slider .rc-slider-rail {
  height: 5px;
  background: rgba(255, 255, 255, 0.10);
  border-radius: 999px;
}

#payload-slider .rc-slider-track {
  height: 5px;
  background: linear-gradient(90deg, var(--accent-strong), var(--accent));
  border-radius: 999px;
}

#payload-slider .rc-slider-step {
  height: 5px;
}

#payload-slider .rc-slider-dot {
  bottom: -3px;
  width: 7px;
  height: 7px;
  background: var(--surface-2);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

#payload-slider .rc-slider-dot-active {
  border-color: var(--accent);
}

#payload-slider .rc-slider-handle {
  width: 16px;
  height: 16px;
  margin-top: -6px;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  opacity: 1;
}

#payload-slider .rc-slider-handle:active,
#payload-slider .rc-slider-handle:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-soft);
}

#payload-slider .rc-slider-mark-text {
  margin-top: 4px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

#payload-slider .rc-slider-mark-text-active {
  color: var(--text);
}

.rc-slider-tooltip-inner {
  padding: 4px 10px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text);
  background: #1a2030;
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  box-shadow: var(--shadow);
}

.rc-slider-tooltip-arrow {
  display: none;
}

/* ---- Loading spinner area --------------------------------------------------- */

._dash-loading-callback {
  background: transparent;
}

/* ---- Responsive tweaks -------------------------------------------------------- */

@media (max-width: 768px) {
  .app-shell {
    padding: 1.25rem 1rem 2rem;
  }

  .app-header-inner {
    padding: 0.75rem 1rem;
  }

  .brand-title {
    font-size: 1rem;
    white-space: normal;
  }

  .brand-tagline {
    display: none;
  }

  .glass-card {
    padding: 1.15rem 1.15rem;
  }

  .kpi-value {
    font-size: 1.5rem;
  }
}

@media (max-width: 575px) {
  .github-label {
    display: none;
  }

  .github-btn {
    padding: 0.5rem 0.7rem;
  }
}