/* --- Responsive grid fix for overview --- */
@media (max-width: 768px) {
  [style*="grid-template-columns:1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }
}

/* --- Route buttons (Tab 02) --- */
.route-btn {
  padding: .5rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: .8rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: .08em;
  cursor: pointer;
  transition: all .2s;
}

.route-btn:hover {
  border-color: var(--border-bright);
  color: var(--text);
}

.route-btn.active {
  background: rgba(16, 185, 129, .12);
  border-color: rgba(16, 185, 129, .4);
  color: #10b981;
}

/* --- Flow node (Tab 02) --- */
.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 90px;
  min-height: 70px;
  padding: .75rem 1rem;
  border-radius: var(--radius-sm);
  border: 2px solid;
  font-family: 'JetBrains Mono', monospace;
  font-size: .78rem;
  font-weight: 700;
  text-align: center;
  transition: box-shadow .3s;
}

.flow-arrow {
  padding: 0 .5rem;
  color: var(--text-muted);
  font-size: 1.3rem;
  line-height: 70px;
}


/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

@font-face {
  font-family: 'Aborne';
  src: url('Aborne.otf') format('opentype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

/* --- CSS Variables --- */
:root {
  --bg: #0f0d0c;
  --bg-card: #161312;
  --bg-card2: #1d1a18;
  --border: rgba(255, 255, 255, 0.07);
  --border-bright: rgba(255, 255, 255, 0.14);
  --text: #e8eaf0;
  --text-muted: #6b7280;
  --text-dim: #9ca3af;

  /* Layer colours */
  --reverb: #d4af37;
  --reverb-dim: rgba(212, 175, 55, 0.15);
  --reverb-glow: rgba(212, 175, 55, 0.3);
  --delayA: #e5e7eb;
  --delayA-dim: rgba(229, 231, 235, 0.15);
  --delayA-glow: rgba(229, 231, 235, 0.3);
  --delayB: #9ca3af;
  --delayB-dim: rgba(156, 163, 175, 0.15);
  --delayB-glow: rgba(156, 163, 175, 0.3);
  --midi: #4b5563;
  --midi-dim: rgba(75, 85, 99, 0.15);
  --gold: #d4af37;
  --gold-dim: rgba(212, 175, 55, 0.15);
  --gold-glow: rgba(212, 175, 55, 0.3);
  --panic: #ef4444;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.6);
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* --- Typography --- */
h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

h3 {
  font-size: 1.15rem;
}

h4 {
  font-size: 0.95rem;
}

code,
.mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
}

p {
  color: var(--text-dim);
}

a {
  color: var(--delayA);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* --- Layout --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- HEADER / HERO --- */
.site-header {
  background: linear-gradient(160deg, #110e0c 0%, #1c1613 60%, #110e0c 100%);
  border-bottom: 1px solid var(--border);
  padding: 4rem 1.5rem 3rem;
  position: relative;
  overflow: hidden;
}

.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 60% 50%, rgba(212, 175, 55, 0.09) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(239, 68, 68, 0.07) 0%, transparent 60%);
  pointer-events: none;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.header-image-container {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1.5rem;
}

@media (min-width: 768px) {
  .header-inner {
    grid-template-columns: 1.3fr 1fr;
    gap: 2rem;
  }

  .header-image-container {
    margin-top: 0;
  }
}

.header-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: #ffffff;
}

.header-title {
  font-family: 'Aborne', sans-serif;
  line-height: 1;
  color: #ffffff;
  font-weight: normal;
  font-style: normal;
  font-size: clamp(3.5rem, 12vw, 8rem);
}

.header-sub {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 560px;
}

.header-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid;
}

.badge-live {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border-color: rgba(16, 185, 129, 0.3);
}

.badge-midi {
  background: var(--midi-dim);
  color: var(--midi);
  border-color: rgba(245, 158, 11, 0.3);
}

.badge-flash {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.25);
}

/* --- STICKY NAV --- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 13, 12, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
}

.nav-btn {
  flex-shrink: 0;
  padding: 0.9rem 0.85rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  white-space: nowrap;
}

.nav-btn:hover {
  color: var(--text);
}

.nav-btn.active {
  color: var(--delayA);
  border-bottom-color: var(--delayA);
}

/* --- TABS --- */
.tab-panel {
  display: none;
  padding: 2.5rem 1.5rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

.tab-panel.active {
  display: block;
  animation: fadeUp 0.3s ease;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- CARDS --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: var(--border-bright);
}

.card-dark {
  background: #110e0c;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

/* --- GRID --- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

@media (max-width: 768px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* --- SECTION TITLES --- */
.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.section-intro {
  color: var(--text-dim);
  margin-bottom: 2rem;
  max-width: 680px;
}

/* --- LAYER TOGGLE BUTTONS --- */
.layer-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.25rem;
  width: fit-content;
  margin-bottom: 1.75rem;
}

.layer-btn {
  padding: 0.45rem 1.1rem;
  border: none;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  background: transparent;
  color: var(--text-muted);
  transition: all 0.2s;
}

.layer-btn:hover {
  color: var(--text);
}

.layer-btn.active-reverb {
  background: var(--reverb-dim);
  color: var(--reverb);
}

.layer-btn.active-delayA {
  background: var(--delayA-dim);
  color: var(--delayA);
}

.layer-btn.active-delayB {
  background: var(--delayB-dim);
  color: var(--delayB);
}

/* --- TABLES --- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
  vertical-align: top;
}

.data-table td:first-child {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--text);
  white-space: nowrap;
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.data-table tr:last-child td {
  border-bottom: none;
}

/* --- COLOUR ACCENTS in tables --- */
.col-reverb {
  color: var(--reverb) !important;
}

.col-delayA {
  color: var(--delayA) !important;
}

.col-delayB {
  color: var(--delayB) !important;
}

.col-midi {
  color: var(--midi) !important;
}

.col-gold {
  color: var(--gold) !important;
}

/* --- STATUS CHIP --- */
.chip {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
}

.chip-live {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
}

.chip-info {
  background: var(--delayA-dim);
  color: var(--delayA);
}

/* --- CHART CONTAINER --- */
.chart-wrap {
  position: relative;
  width: 100%;
  max-width: 480px;
  height: 280px;
  margin: 0 auto;
}

/* --- Emulator Embed (Tab 01) --- */
.emulator-embed-shell {
  width: 100%;
  height: min(920px, 92vh);
  min-height: 720px;
  overflow: hidden;
  background: #050608;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.emulator-embed {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: #050608;
}

@media (max-width: 768px) {
  .emulator-embed-shell {
    height: 980px;
    min-height: 820px;
  }
}

/* --- DIVIDER --- */
.divider {
  height: 1px;
  background: var(--border);
  margin: 2rem 0;
}

/* --- FOOTER --- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 1.5rem;
  text-align: center;
}

.site-footer p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.bmc-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.6rem 1.4rem;
  background: var(--gold-dim);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 999px;
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: all 0.2s;
}

.bmc-btn:hover {
  background: rgba(212, 175, 55, 0.25);
  box-shadow: 0 0 20px var(--gold-glow);
  text-decoration: none;
}

.hero-dl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .85rem 1.75rem;
  background: var(--text);
  color: var(--bg);
  text-decoration: none;
  font-weight: 800;
  font-size: 1rem;
  border-radius: var(--radius);
  transition: all .2s;
}

.hero-dl-btn:hover {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.15);
  text-decoration: none;
}

/* --- RESPONSIVE --- */
@media (max-width: 600px) {
  .site-header {
    padding: 2.5rem 1rem 2rem;
  }

  .tab-panel {
    padding: 1.5rem 1rem 3rem;
  }
}