:root {
  --black: #000000;
  --green: #00ff88;
  --cyan: #00e5ff;
  --red: #ff2244;
  --dim-green: #00ff8844;
  --dim-cyan: #00e5ff22;
  --text: #c8ffec;
  --muted: #3a5a4a;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--black);
  color: var(--text);
  font-family: 'Courier New', Courier, monospace;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Scanline overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.18) 2px,
    rgba(0, 0, 0, 0.18) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* ─── HERO ─────────────────────────────────────────────── */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  overflow: hidden;
}

/* circuit SVG background */
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.08;
  pointer-events: none;
}

.floating-symbols {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.sym {
  position: absolute;
  font-size: 1.2rem;
  color: var(--dim-green);
  animation: drift linear infinite;
  opacity: 0;
  user-select: none;
}

@keyframes drift {
  0%   { transform: translateY(0) rotate(0deg);   opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 0.6; }
  100% { transform: translateY(-120vh) rotate(360deg); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

/* Coordinates badge */
.coords {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--muted);
  border: 1px solid var(--muted);
  padding: 0.25rem 0.75rem;
}

/* Glitch title */
.title {
  font-size: clamp(3.5rem, 12vw, 9rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--green);
  text-shadow:
    0 0 8px var(--green),
    0 0 30px var(--dim-green);
  position: relative;
  line-height: 1;
}

.title::before,
.title::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  background: var(--black);
  clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
}

.title::before {
  color: var(--red);
  left: 3px;
  animation: glitch-top 3.5s infinite steps(1);
}

.title::after {
  color: var(--cyan);
  left: -3px;
  animation: glitch-bot 3.5s infinite steps(1) 0.1s;
}

@keyframes glitch-top {
  0%,  100% { clip-path: polygon(0 0, 100% 0, 100% 0, 0 0); }
  5%         { clip-path: polygon(0 12%, 100% 12%, 100% 22%, 0 22%); }
  10%        { clip-path: polygon(0 0, 100% 0, 100% 0, 0 0); }
  35%        { clip-path: polygon(0 55%, 100% 55%, 100% 65%, 0 65%); }
  40%        { clip-path: polygon(0 0, 100% 0, 100% 0, 0 0); }
  70%        { clip-path: polygon(0 80%, 100% 80%, 100% 90%, 0 90%); }
  75%        { clip-path: polygon(0 0, 100% 0, 100% 0, 0 0); }
}

@keyframes glitch-bot {
  0%,  100% { clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%); }
  5%         { clip-path: polygon(0 30%, 100% 30%, 100% 40%, 0 40%); }
  10%        { clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%); }
  45%        { clip-path: polygon(0 68%, 100% 68%, 100% 78%, 0 78%); }
  50%        { clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%); }
  80%        { clip-path: polygon(0 5%, 100% 5%, 100% 15%, 0 15%); }
  85%        { clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%); }
}

/* Tagline */
.tagline {
  font-size: clamp(0.75rem, 2vw, 1rem);
  letter-spacing: 0.3em;
  color: var(--cyan);
  min-height: 1.4em;
  text-transform: uppercase;
}

.cursor {
  display: inline-block;
  width: 0.6em;
  height: 1em;
  background: var(--cyan);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* Hex ticker */
.ticker-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.15em;
}

.ticker-wrap .label {
  color: var(--red);
}

#hex-ticker {
  color: var(--green);
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--muted);
  z-index: 2;
}

.arrow {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--muted));
  animation: pulse-down 2s ease-in-out infinite;
}

@keyframes pulse-down {
  0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
  50%       { opacity: 1;   transform: scaleY(1); }
}

/* ─── SYMBOL BAND ───────────────────────────────────────── */

.symbol-band {
  padding: 4rem 2rem;
  border-top: 1px solid #0f2a1a;
  border-bottom: 1px solid #0f2a1a;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3rem;
}

.glyph-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  opacity: 0.7;
  transition: opacity 0.3s, transform 0.3s;
  cursor: default;
}

.glyph-card:hover {
  opacity: 1;
  transform: translateY(-4px);
}

.glyph {
  font-size: 2.5rem;
  color: var(--cyan);
  text-shadow: 0 0 12px var(--cyan);
}

.glyph-label {
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ─── SIGNAL SECTION ────────────────────────────────────── */

.signal-section {
  padding: 6rem 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1100px;
  margin: 0 auto;
  align-items: center;
}

@media (max-width: 700px) {
  .signal-section {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding: 4rem 1.5rem;
  }
}

.signal-text h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--green);
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
  text-shadow: 0 0 6px var(--green);
}

.signal-text p {
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--muted);
  letter-spacing: 0.05em;
  max-width: 38ch;
}

.signal-text p + p {
  margin-top: 1rem;
}

.redacted {
  background: var(--muted);
  color: var(--muted);
  border-radius: 2px;
  user-select: none;
  padding: 0 2px;
}

.signal-diagram {
  display: flex;
  justify-content: center;
}

.signal-diagram svg {
  width: 100%;
  max-width: 360px;
  height: auto;
  filter: drop-shadow(0 0 12px var(--dim-cyan));
}

/* ─── FOOTER ────────────────────────────────────────────── */

footer {
  padding: 2rem;
  text-align: center;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--muted);
  border-top: 1px solid #0a1a10;
}

footer span {
  color: var(--red);
}

/* ─── RESPONSIVE ────────────────────────────────────────── */

@media (max-width: 600px) {
  .symbol-band {
    gap: 2rem;
    padding: 3rem 1.5rem;
  }
  .glyph {
    font-size: 2rem;
  }
}