/* ==========================================================================
   THE LAST SPECIES - MASTER VARIATIONS COMMAND CENTER & DASHBOARD
   Clean Studio Dark / Alabaster Light Architecture
   ========================================================================== */

:root,
[data-theme="dark"] {
  --bg-primary: #090C10;
  --bg-elevated: #11161F;
  --bg-surface: #171E2B;
  --bg-glass: rgba(17, 22, 31, 0.82);
  --text-primary: #F3F5F8;
  --text-secondary: #9BA7B8;
  --text-muted: #687588;
  --accent: #10B981;
  --accent-strong: #059669;
  --accent-contrast: #FFFFFF;
  --accent-soft: rgba(16, 185, 129, 0.14);
  --border-subtle: rgba(243, 245, 248, 0.12);
  --border-active: rgba(16, 185, 129, 0.5);
  --shadow-card: 0 28px 64px rgba(0, 0, 0, 0.65);
}

[data-theme="light"] {
  --bg-primary: #F5F7FA;
  --bg-elevated: #FFFFFF;
  --bg-surface: #EBF0F5;
  --bg-glass: rgba(255, 255, 255, 0.88);
  --text-primary: #0B111E;
  --text-secondary: #334155;
  --text-muted: #5B6B82;
  --accent: #047857;
  --accent-strong: #065F46;
  --accent-contrast: #FFFFFF;
  --accent-soft: rgba(4, 120, 87, 0.1);
  --border-subtle: rgba(11, 17, 30, 0.12);
  --border-active: rgba(4, 120, 87, 0.45);
  --shadow-card: 0 24px 54px rgba(15, 23, 42, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              color 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Modular Typography Scale (>1.4x ratio) */
h1 {
  font-size: clamp(2.5rem, 4.5vw, 3.6rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(1.9rem, 3.2vw, 2.45rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.3rem, 2vw, 1.5rem);
  font-weight: 600;
  line-height: 1.25;
}

p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 65ch;
}

small {
  font-size: 0.75rem;
}

.italic-em {
  font-style: italic;
  color: var(--accent);
  line-height: 1.15;
  padding-bottom: 0.1em;
  display: inline-block;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 200;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 0.75rem 1.25rem;
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

.studio-grain {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.028;
  background-image: radial-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 0);
  background-size: 22px 22px;
}

.hub-container {
  width: 100%;
  max-width: 1420px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── HEADER (Single-line <= 72px) ────────────────────────────────────────── */
.hub-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 70px;
  background: var(--bg-glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-bar {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.hub-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  text-decoration: none;
  white-space: nowrap;
}

.hub-brand-name {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.hub-badge {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--border-active);
}

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

.hub-nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hub-nav-link:hover {
  color: var(--text-primary);
}

.hub-header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.theme-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  height: 40px;
  padding: 0 0.9rem;
  border-radius: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  cursor: pointer;
}

.theme-btn:hover {
  border-color: var(--accent);
}

.btn-hub {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 1.25rem;
  border-radius: 10px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1),
              background-color 0.2s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-hub:active {
  transform: scale(0.98);
}

.btn-hub-primary {
  background: var(--accent-strong);
  color: var(--accent-contrast);
  border: 1px solid var(--accent-strong);
}

.btn-hub-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.btn-hub-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-hub-secondary:hover {
  border-color: var(--accent);
}

/* ── SECTION 1: HERO OVERVIEW ────────────────────────────────────────────── */
.hub-hero {
  padding: 3.5rem 0 3rem;
  border-bottom: 1px solid var(--border-subtle);
}

.hub-hero-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}

.hub-eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

.hub-headline {
  margin-bottom: 1rem;
}

.hub-subtext {
  font-size: 1.08rem;
}

.hub-kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.kpi-tile {
  padding: 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.kpi-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.kpi-val {
  font-size: 1.45rem;
  color: var(--text-primary);
}

.kpi-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ── SECTION 2: 3 VARIATION CARDS GRID ───────────────────────────────────── */
.variations-section {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-head-stack {
  margin-bottom: 2.5rem;
}

.section-head-stack h2 {
  margin-bottom: 0.5rem;
}

.variations-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.var-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.var-card:hover,
.var-card.is-selected {
  transform: translateY(-4px);
  border-color: var(--border-active);
}

.var-card-preview {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #05070A;
}

.var-card-preview > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}

.var-card:hover .var-card-preview > img {
  transform: scale(1.04);
}

.var-dial-strip {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  display: flex;
  gap: 0.4rem;
  padding: 0.35rem;
  background: rgba(9, 12, 16, 0.82);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.var-dial-strip img {
  width: 38px;
  height: 38px;
  border-radius: 5px;
  object-fit: cover;
  display: block;
}

.var-card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 1;
  gap: 1.15rem;
}

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

.var-index-pill {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
}

.var-emerald {
  background: rgba(16, 185, 129, 0.15);
  color: #34D399;
}

.var-cobalt {
  background: rgba(59, 130, 246, 0.16);
  color: #60A5FA;
}

.var-ruby {
  background: rgba(225, 29, 72, 0.16);
  color: #FB7185;
}

.var-folder-path {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.var-desc {
  font-size: 0.94rem;
}

.var-specs-chips {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}

.chip-pair {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.8rem;
}

.chip-pair span {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  color: var(--text-muted);
}

.chip-pair strong {
  color: var(--text-primary);
  text-align: right;
}

.var-card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

/* ── SECTION 3: INTERACTIVE LIVE VIEWPORT STAGE ──────────────────────────── */
.viewport-dock-section {
  padding: 4.5rem 0;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
}

.dock-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 12px 12px 0 0;
}

.dock-heading {
  font-size: 1.35rem;
  margin-bottom: 0.15rem;
}

.dock-active-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--accent);
}

.dock-var-switcher,
.dock-device-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.dock-tab-btn,
.device-btn {
  height: 38px;
  padding: 0 0.95rem;
  border-radius: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  cursor: pointer;
}

.dock-tab-btn.is-active,
.device-btn.is-active,
.dock-tab-btn:hover,
.device-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--accent-soft);
}

.iframe-shell-outer {
  background: #05070A;
  border: 1px solid var(--border-subtle);
  border-top: none;
  border-radius: 0 0 12px 12px;
  padding: 1.25rem;
  display: flex;
  justify-content: center;
}

.iframe-viewport-box {
  width: 100%;
  height: 780px;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  overflow: hidden;
  background: #090C10;
  transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

#variation-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* ── SECTION 4: SHARED STANDARDS 2-COL CARDS ─────────────────────────────── */
.standards-section {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.standards-2col-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.standard-card {
  padding: 2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.standard-tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.12em;
}

.standard-card strong {
  font-size: 1.3rem;
}

/* ── FOOTER ──────────────────────────────────────────────────────────────── */
.hub-footer {
  padding: 3rem 0;
  background: var(--bg-elevated);
}

.hub-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.hub-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.hub-footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
}

.hub-footer-links a:hover {
  color: var(--text-primary);
}

.hub-footer-address {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  max-width: 100%;
}

/* ── RESPONSIVE BREAKPOINTS ──────────────────────────────────────────────── */
@media (max-width: 1120px) {
  .hub-hero-split,
  .variations-cards-grid {
    grid-template-columns: 1fr;
  }

  .hub-nav {
    display: none;
  }
}

@media (max-width: 768px) {
  .hub-container {
    padding: 0 1.25rem;
  }

  .hub-kpi-grid,
  .standards-2col-grid,
  .var-card-actions {
    grid-template-columns: 1fr;
  }

  .iframe-viewport-box {
    height: 620px;
  }
}