/* ═══════════════════════════════════════════════════════════════
   LAYOUT — Navigation, sections, footer, pricing, features
   ═══════════════════════════════════════════════════════════════ */

/* ─── NAVIGATION ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(6, 8, 13, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--grid-15);
}

.nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
}

.nav__brand {
  display: flex; align-items: center; gap: 0.5rem;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
}
.nav__brand:hover { color: var(--text-primary); }

.nav__logo {
  color: var(--accent-light);
  font-size: 1.5rem;
}

.nav__links {
  display: flex; align-items: center; gap: 2rem;
}

.nav__link {
  color: var(--text-secondary);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  transition: color 0.2s;
}
.nav__link:hover { color: var(--text-primary); }

.nav__cta-btn {
  padding: 0.5rem 1.25rem;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--accent-light);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.25s var(--ease-out);
}
.nav__cta-btn:hover {
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-hover);
}

/* Hamburger (mobile) */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none; border: none; cursor: pointer;
  padding: 4px;
}
.nav__hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text-primary);
  transition: transform 0.3s;
}

/* ─── SECTIONS ─── */
.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-2xl) 1.5rem;
}

.section--alt {
  max-width: 100%;
  background: var(--bg-charcoal);
}
.section--alt > * {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.section__title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: var(--space-sm);
}

.section__subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-xl);
}

.section__more {
  text-align: center;
  margin-top: var(--space-xl);
}

/* ─── FEATURED GRID (3-col) ─── */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
}

/* ─── CARDS ─── */
.card {
  background: var(--bg-panel);
  border: 1px solid var(--grid-15);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), border-color 0.3s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(59, 130, 246, 0.08);
}

.card__img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: var(--bg-obsidian);
}

.card__body {
  padding: var(--space-md);
}

.card__cat {
  display: inline-block;
  font-size: 0.7rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}

.card__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: var(--space-xs);
}

.card__desc {
  color: var(--text-secondary);
  font-size: 0.8rem;
  line-height: 1.5;
}

/* ─── FEATURES GRID ─── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  padding: 0 1.5rem;
}

.feature-card {
  background: var(--bg-panel);
  border: 1px solid var(--grid-15);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: border-color 0.3s, transform 0.3s var(--ease-out);
}
.feature-card:hover {
  border-color: var(--accent, var(--accent));
  transform: translateY(-2px);
}

.feature-card__icon {
  font-size: 1.5rem;
  color: var(--accent, var(--accent));
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
  font-weight: 700;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.55;
}

/* ─── PRICING ─── */
.pricing-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .pricing-row {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    max-width: 800px;
  }
}

.pricing-card {
  background: var(--bg-panel);
  border: 1px solid var(--grid-15);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card--featured {
  border-color: var(--accent);
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.1);
}

.pricing-card__badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-glow) 100%);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 1rem;
  border-radius: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pricing-card__header { margin-bottom: var(--space-lg); }

.pricing-card__name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: var(--space-xs);
}

.pricing-card__desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.pricing-card__price {
  margin-bottom: var(--space-lg);
}

.pricing-card__amount {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: var(--text-primary);
}

.pricing-card__period {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.pricing-card__features {
  list-style: none;
  margin-bottom: var(--space-lg);
  flex: 1;
}

.pricing-card__features li {
  padding: 0.4rem 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--grid-15);
}
.pricing-card__features li::before {
  content: "\2713";
  color: var(--emerald);
  margin-right: 0.6rem;
  font-weight: 700;
}

/* ─── FOOTER ─── */
.footer {
  background: var(--bg-charcoal);
  border-top: 1px solid var(--grid-15);
  padding: var(--space-xl) 1.5rem var(--space-lg);
}

.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.footer__tagline {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: var(--space-xs);
}

.footer__heading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: var(--space-md);
}

.footer__link {
  display: block;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: var(--space-sm);
}
.footer__link:hover { color: var(--accent-light); }

.footer__disclaimer {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--grid-15);
}
.footer__disclaimer p {
  color: var(--text-dim);
  font-size: 0.7rem;
  line-height: 1.5;
  text-align: center;
  opacity: 0.7;
}

.footer__bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--grid-15);
  text-align: center;
}
.footer__bottom p {
  color: var(--text-dim);
  font-size: 0.75rem;
  margin-bottom: var(--space-xs);
}

/* ─── FILTER BAR ─── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  background: var(--bg-panel);
  border: 1px solid var(--grid-15);
  border-radius: 30px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
}
.filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent-light);
}
.filter-btn--active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 600;
}

/* ─── GALLERY PAGE ─── */
.gallery-page { padding-top: calc(var(--space-2xl) + 60px); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.gallery-grid__empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-dim);
  padding: var(--space-xl) 0;
}

/* ─── 3D VIZ SECTIONS ─── */
.viz-section {
  position: relative;
  width: 100%;
  padding: var(--space-2xl) 0;
}

.viz-section__header {
  text-align: center;
  padding: 0 1.5rem;
  margin-bottom: var(--space-lg);
}

.viz-canvas-wrap {
  position: relative;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--grid-15);
  background: var(--bg-panel);
}

.viz-canvas-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.viz-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md) var(--space-lg);
  margin-top: var(--space-lg);
  padding: 0 1.5rem;
}

.viz-legend__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.viz-legend__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Tooltip for 3D scenes */
.viz-tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(15, 19, 24, 0.95);
  border: 1px solid var(--grid);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
  color: var(--text-primary);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 10;
}
.viz-tooltip.visible { opacity: 1; }

/* ─── MAP CONTROLS ─── */
.map-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  max-width: 1200px;
  margin: 0 auto var(--space-lg);
  padding: 0 1.5rem;
}

/* D3 state paths */
.state {
  transition: fill 0.3s;
}
.state:hover {
  filter: brightness(1.3);
}

/* ─── DRILLDOWN PANEL ─── */
.drilldown-panel {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.drilldown-card {
  background: var(--bg-surface);
  border: 1px solid var(--grid-15);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-top: var(--space-lg);
  position: relative;
  animation: fadeInUp 0.3s var(--ease-out);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.drilldown-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: var(--space-md);
  color: var(--accent-light);
}

.drilldown-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.drilldown-metric {
  display: flex;
  flex-direction: column;
  min-width: 120px;
}

.drilldown-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.drilldown-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: var(--space-xs);
}

.drilldown-close {
  position: absolute;
  top: 12px; right: 16px;
  background: none; border: none;
  color: var(--text-dim);
  font-size: 1rem;
  cursor: pointer;
  font-family: var(--font-mono);
}
.drilldown-close:hover { color: var(--text-primary); }

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }

  .nav--open .nav__links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(6, 8, 13, 0.95);
    backdrop-filter: blur(12px);
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: 1px solid var(--grid-15);
  }

  .section__title { font-size: 1.75rem; }

  .featured-grid { grid-template-columns: 1fr; }

  .features-grid { grid-template-columns: 1fr; padding: 0; }

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

  .footer__inner { grid-template-columns: 1fr; gap: var(--space-lg); }

  .gallery-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }

  .viz-canvas-wrap { aspect-ratio: 4 / 3; }
}