*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: #0a0a0a;
  color: #f0f0f0;
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

:root {
  --ink: #f0f0f0;
  --muted: #8a8a8a;
  --void: #0a0a0a;
  --panel: #141414;
  --panel-2: #1c1c1c;
  --volt: #c8ff00;
  --volt-dim: rgba(200,255,0,0.12);
  --line: rgba(240,240,240,0.08);
  --flap: #1a1a1a;
}

/* ——— SPLIT-FLAP BOARD NAV (unique) ——— */
.board {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #111;
  border-bottom: 3px solid #222;
  padding: 14px 20px 16px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}
.board .header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}
.board .name {
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.board .name span { color: var(--volt); }
.board .clock {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.flaps {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 520px;
}
.flaps a {
  display: grid;
  grid-template-columns: 52px 1fr 72px;
  align-items: center;
  background: var(--flap);
  border: 1px solid #2a2a2a;
  border-radius: 2px;
  padding: 0;
  overflow: hidden;
  transition: all 0.15s;
  font-family: ui-monospace, Menlo, Consolas, monospace;
}
.flaps a .code {
  background: #0d0d0d;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
  text-align: center;
  padding: 10px 4px;
  border-right: 1px solid #2a2a2a;
  letter-spacing: 0.04em;
}
.flaps a .dest {
  padding: 10px 14px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #ccc;
}
.flaps a .status {
  text-align: center;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  border-left: 1px solid #2a2a2a;
  padding: 10px 4px;
}
.flaps a:hover {
  border-color: #444;
}
.flaps a:hover .dest { color: #fff; }
.flaps a.active {
  border-color: var(--volt);
  box-shadow: 0 0 0 1px var(--volt-dim);
}
.flaps a.active .code {
  background: var(--volt);
  color: #0a0a0a;
}
.flaps a.active .dest { color: var(--volt); }
.flaps a.active .status { color: var(--volt); }

.mob {
  display: none;
  background: var(--volt);
  color: #0a0a0a;
  border: none;
  font-weight: 800;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 14px;
  cursor: pointer;
}

/* ——— START HERO ——— */
.start {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 28px 40px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
}
.start .tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--volt);
  margin-bottom: 12px;
}
.start h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -1.2px;
  line-height: 1.05;
  margin-bottom: 16px;
}
.start h1 em {
  font-style: normal;
  color: var(--volt);
}
.start p {
  color: var(--muted);
  max-width: 420px;
  margin-bottom: 28px;
  font-size: 1.05rem;
}
.start .frame {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.start .frame img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  filter: contrast(1.05) saturate(0.9);
}
.start .frame .badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--volt);
  color: #0a0a0a;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 10px;
  font-family: ui-monospace, Menlo, monospace;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 13px 24px;
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-volt {
  background: var(--volt);
  color: #0a0a0a;
}
.btn-volt:hover { filter: brightness(1.1); }
.btn-ghost {
  background: transparent;
  border: 1.5px solid var(--ink);
  color: var(--ink);
}
.btn-ghost:hover { background: var(--ink); color: var(--void); }

/* ——— BLOCKS ——— */
.blocks {
  max-width: 1100px;
  margin: 0 auto 40px;
  padding: 0 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.block {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 22px;
}
.block .n {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.7rem;
  color: var(--volt);
  margin-bottom: 8px;
  font-weight: 700;
}
.block h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.block p {
  font-size: 0.88rem;
  color: var(--muted);
}

/* ——— REPS ——— */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 28px 56px;
}
.section .tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--volt);
  margin-bottom: 8px;
}
.section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 28px;
}

.reps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.rep {
  background: var(--panel);
  border: 1px solid var(--line);
  overflow: hidden;
  display: grid;
  grid-template-columns: 140px 1fr;
}
.rep img {
  width: 100%;
  height: 100%;
  min-height: 140px;
  object-fit: cover;
}
.rep .body { padding: 20px; }
.rep .code {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.68rem;
  color: var(--volt);
  margin-bottom: 6px;
  font-weight: 700;
}
.rep h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.rep p {
  font-size: 0.9rem;
  color: var(--muted);
}

/* ——— ORIGIN ——— */
.origin-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 70vh;
}
.origin-split img {
  width: 100%;
  height: 100%;
  min-height: 400px;
  object-fit: cover;
  filter: contrast(1.05);
}
.origin-split .txt {
  background: var(--panel);
  padding: 56px 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.origin-split .txt .tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--volt);
  margin-bottom: 12px;
}
.origin-split .txt h1 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}
.origin-split .txt p {
  color: var(--muted);
  margin-bottom: 12px;
}

/* ——— SIGNAL ——— */
.signal-wrap {
  max-width: 1100px;
  margin: 28px auto 60px;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 12px;
}
.signal-side {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 36px;
}
.signal-side h2 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 22px;
}
.s-row { margin-bottom: 16px; }
.s-row .lbl {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--volt);
  margin-bottom: 4px;
}
.s-row p, .s-row a {
  font-size: 0.95rem;
  color: var(--muted);
}
.s-row a:hover { color: var(--volt); }

.signal-form {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 32px;
}
.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 5px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  background: var(--void);
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--ink);
  font-size: 0.95rem;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--volt);
}
.form-group textarea { min-height: 110px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.ft {
  border-top: 1px solid var(--line);
  padding: 28px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
}
.ft strong { color: var(--ink); }

@media (max-width: 860px) {
  .flaps {
    display: none;
    max-width: 100%;
  }
  .flaps.open { display: flex; }
  .mob { display: inline-block; }
  .start { grid-template-columns: 1fr; }
  .start .frame img { height: 260px; }
  .blocks { grid-template-columns: 1fr; }
  .reps-grid { grid-template-columns: 1fr; }
  .rep { grid-template-columns: 100px 1fr; }
  .origin-split { grid-template-columns: 1fr; }
  .origin-split img { min-height: 260px; }
  .origin-split .txt { padding: 36px 24px; }
  .signal-wrap { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}