/* --- 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');

/* --- CSS Variables --- */
:root {
  --bg:          #0a0c10;
  --bg-card:     #111318;
  --bg-card2:    #181b22;
  --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:      #10b981;
  --reverb-dim:  rgba(16,185,129,0.15);
  --reverb-glow: rgba(16,185,129,0.3);
  --delayA:      #3b82f6;
  --delayA-dim:  rgba(59,130,246,0.15);
  --delayA-glow: rgba(59,130,246,0.3);
  --delayB:      #ef4444;
  --delayB-dim:  rgba(239,68,68,0.15);
  --delayB-glow: rgba(239,68,68,0.3);
  --midi:        #f59e0b;
  --midi-dim:    rgba(245,158,11,0.15);
  --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, #0d1117 0%, #111827 60%, #0d1117 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(168,85,247,0.08) 0%, transparent 70%),
              radial-gradient(ellipse 50% 50% at 20% 80%, rgba(13,148,136,0.06) 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 {
  line-height: 1;
  color: #ffffff;
  font-style: italic;
  font-weight: 900;
}
.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(10,12,16,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-inner::-webkit-scrollbar { display: none; }
.nav-btn {
  flex-shrink: 0;
  padding: 1rem 1.25rem;
  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: #0d0f14;
  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;
}

/* --- 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; }
}