:root {
  --bg-obsidian: #060913;
  --bg-navy: #0b1120;
  --bg-card: rgba(15, 23, 42, 0.78);
  --bg-card-elevated: rgba(23, 33, 58, 0.86);
  --border-subtle: rgba(226, 232, 240, 0.1);
  --border-gold: rgba(212, 175, 55, 0.38);
  --text-ivory: #f8f5ee;
  --text-slate: #cbd5e1;
  --text-muted: #94a3b8;
  --accent-gold: #e5c158;
  --accent-gold-dim: rgba(229, 193, 88, 0.16);
  --accent-cyan: #38bdf8;
  --status-good: #10b981;
  --status-warn: #f59e0b;
  --status-poor: #f43f5e;
  --font-display: "Georgia", "Iowan Old Style", "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--bg-obsidian);
  color: var(--text-ivory);
  font-family: var(--font-sans);
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 14% 8%, rgba(212, 175, 55, 0.12), transparent 38%),
    radial-gradient(circle at 86% 18%, rgba(56, 189, 248, 0.09), transparent 42%),
    linear-gradient(180deg, var(--bg-obsidian) 0%, var(--bg-navy) 52%, var(--bg-obsidian) 100%);
}

a {
  color: var(--accent-gold);
  text-decoration: none;
  transition:
    color 0.18s ease,
    opacity 0.18s ease;
}

a:hover {
  color: #fde68a;
}

a:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
  border-radius: 0.25rem;
}

.deck-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.deck-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: rgba(6, 9, 19, 0.85);
  border-bottom: 1px solid var(--border-subtle);
}

.deck-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 4.25rem;
  flex-wrap: wrap;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-ivory);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.brand-crest {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-gold);
  background: linear-gradient(135deg, rgba(229, 193, 88, 0.24), rgba(15, 23, 42, 0.9));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav-search {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-search-input {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--border-subtle);
  border-radius: 0.375rem;
  color: var(--text-ivory);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  padding: 0.35rem 0.65rem;
  width: 14rem;
}

.nav-search-input:focus {
  outline: 1px solid var(--accent-gold);
  border-color: var(--border-gold);
}

.nav-search-btn {
  background: var(--accent-gold-dim);
  border: 1px solid var(--border-gold);
  border-radius: 0.375rem;
  color: var(--accent-gold);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.7rem;
  text-transform: uppercase;
}

.nav-search-btn:hover {
  background: rgba(229, 193, 88, 0.28);
}

.hero-search {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  max-width: 38rem;
  margin: 1.25rem 0 1.5rem;
}

.hero-search-input {
  flex: 1;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--border-gold);
  border-radius: 0.5rem;
  color: var(--text-ivory);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 0.65rem 0.95rem;
}

.hero-search-input:focus {
  outline: 2px solid var(--accent-gold);
}

.hero-search-btn {
  background: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  border-radius: 0.5rem;
  color: var(--bg-obsidian);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.65rem 1.15rem;
  text-transform: uppercase;
  white-space: nowrap;
}

.hero-search-btn:hover {
  background: #fde68a;
}

.nav-links a {
  color: var(--text-slate);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

.nav-links a:hover {
  color: var(--accent-gold);
}

.slide-section {
  padding: 4.25rem 0;
  border-bottom: 1px solid var(--border-subtle);
  scroll-margin-top: 5rem;
}

.section-head-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.chapter-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-gold);
  margin-bottom: 0.75rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.15rem, 4.2vw, 3.65rem);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  color: var(--text-ivory);
}

.hero-title-tight {
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 2.8vw, 2.4rem);
  font-weight: 400;
  line-height: 1.2;
  margin: 0 0 0.75rem;
  color: var(--text-ivory);
}

.card-subtitle {
  margin: 0.2rem 0 0.5rem;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text-ivory);
}

.lead-copy {
  font-size: 1.08rem;
  color: var(--text-slate);
  max-width: 72ch;
  margin: 0 0 1.75rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}

.mb-md {
  margin-bottom: 1.5rem;
}

.exec-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 20px 45px rgba(2, 6, 23, 0.45);
  transition:
    transform 0.24s ease,
    border-color 0.24s ease;
}

.exec-card:hover {
  border-color: rgba(229, 193, 88, 0.28);
}

.exec-card-gold {
  border-color: var(--border-gold);
  background: linear-gradient(160deg, rgba(229, 193, 88, 0.1), rgba(15, 23, 42, 0.88));
}

.stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 2.6vw, 2.45rem);
  line-height: 1.15;
  color: var(--text-ivory);
  font-variant-numeric: tabular-nums;
}

.stat-value-sm {
  font-size: 1.4rem;
}

.stat-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

.stat-meta-inline {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0;
}

.tone-good {
  color: var(--status-good);
}

.tone-warn {
  color: var(--status-warn);
}

.tone-poor {
  color: var(--status-poor);
}

.tone-gold {
  color: var(--accent-gold);
}

.mono-text {
  font-family: var(--font-mono);
}

.provenance {
  margin-top: 0.9rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(226, 232, 240, 0.08);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.control-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  padding: 1.25rem;
  border-radius: 0.9rem;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 155px;
  flex: 1;
}

.control-group label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.control-select,
.control-button {
  background: rgba(6, 9, 19, 0.9);
  border: 1px solid var(--border-subtle);
  color: var(--text-ivory);
  border-radius: 0.55rem;
  padding: 0.6rem 0.85rem;
  font-size: 0.88rem;
  font-family: var(--font-sans);
}

.control-select:focus,
.control-button:focus {
  outline: 2px solid var(--accent-gold);
  outline-offset: 1px;
}

.control-button {
  display: inline-block;
  cursor: pointer;
  background: linear-gradient(135deg, rgba(229, 193, 88, 0.22), rgba(229, 193, 88, 0.08));
  border-color: var(--border-gold);
  color: var(--accent-gold);
  font-weight: 600;
}

.pill-cluster {
  display: inline-flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.switch-link {
  display: inline-block;
  padding: 0.45rem 0.9rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-subtle);
  color: var(--text-slate);
  font-size: 0.84rem;
}

.switch-link-active {
  border-color: var(--border-gold);
  background: var(--accent-gold-dim);
  color: var(--accent-gold);
  font-weight: 600;
}

.table-scroll {
  overflow-x: auto;
  border-radius: 0.9rem;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(226, 232, 240, 0.07);
}

.data-table th {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-muted);
  background: rgba(6, 9, 19, 0.55);
  white-space: nowrap;
}

.data-table tbody tr:hover {
  background: rgba(229, 193, 88, 0.05);
}

.num-col {
  text-align: right !important;
  font-family: var(--font-mono);
}

.cpu-bar-cell {
  min-width: 170px;
}

.cpu-bar-head {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
}

.bar-track {
  width: 100%;
  height: 0.52rem;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 0.35rem;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-cyan));
  transform-origin: left center;
  animation: bar-grow 0.95s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.chart-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
}

.chart-foot {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  flex-wrap: wrap;
}

.chart-svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

.chart-line {
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: chart-draw 1.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.chart-area {
  opacity: 0;
  animation: chart-fade 1.1s ease 0.25s forwards;
}

.chart-threshold {
  stroke: rgba(245, 158, 11, 0.55);
  stroke-dasharray: 5 5;
  stroke-width: 1.25;
}

.funnel-step {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 0.65rem;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(226, 232, 240, 0.07);
  margin-bottom: 0.55rem;
}

.funnel-step-stack {
  display: block;
}

.notice-box {
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.08);
  color: var(--text-ivory);
  font-size: 0.88rem;
  margin-bottom: 1.25rem;
}

.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.65s ease,
    transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

.js .reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.deck-footer {
  padding: 3rem 0 4rem;
  color: var(--text-muted);
  font-size: 0.82rem;
}

@keyframes chart-draw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes chart-fade {
  to {
    opacity: 0.24;
  }
}

@keyframes bar-grow {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .js .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .chart-line,
  .bar-fill {
    animation: none !important;
    stroke-dashoffset: 0 !important;
    opacity: 1 !important;
    transform: none !important;
  }
  .chart-area {
    animation: none !important;
    opacity: 0.24 !important;
  }
}