/* ── Elite Dangerous HUD theme ─────────────────────────────── */
:root {
  --bg:        #050505;
  --bg-panel:  rgba(20, 10, 2, 0.35);
  --orange:    #ff7100;   /* ED primary HUD orange */
  --orange-hi: #ffb000;   /* highlight / hover */
  --orange-dim:#a84a00;
  --text:      #ffce9e;
  --text-dim:  #8a5a30;
  --glow:      0 0 8px rgba(255, 113, 0, 0.65), 0 0 24px rgba(255, 113, 0, 0.35);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Orbitron', sans-serif;
  overflow-x: hidden;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  -webkit-font-smoothing: antialiased;
}

/* radial backdrop glow */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(circle at 50% 38%, rgba(255, 113, 0, 0.10), transparent 55%),
    radial-gradient(circle at 50% 120%, rgba(255, 113, 0, 0.08), transparent 50%),
    var(--bg);
}

/* faint HUD grid */
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; opacity: 0.05; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,113,0,0.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,113,0,0.6) 1px, transparent 1px);
  background-size: 64px 64px;
}

.scanlines {
  position: fixed; inset: 0; z-index: 50; pointer-events: none; opacity: 0.35;
  background: repeating-linear-gradient(
    to bottom, rgba(0,0,0,0) 0, rgba(0,0,0,0) 2px, rgba(0,0,0,0.25) 3px, rgba(0,0,0,0) 4px);
  mix-blend-mode: multiply;
}
.vignette {
  position: fixed; inset: 0; z-index: 49; pointer-events: none;
  box-shadow: inset 0 0 240px 40px rgba(0,0,0,0.9);
}

/* ── Hero / countdown ──────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  position: relative; padding: 4vh 4vw;
}

.hero-frame {
  width: 100%;
  text-align: center;
  padding: 2vh 2vw;
  position: relative;
}

/* Visually hidden, but available to screen readers and search engines. */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.tagline {
  font-size: clamp(0.75rem, 2vw, 1.6rem);
  letter-spacing: 0.55em;
  text-indent: 0.55em; /* compensate trailing letter-spacing so it stays centred */
  color: var(--orange);
  text-shadow: 0 0 10px rgba(255, 113, 0, 0.4);
  margin-bottom: clamp(0.8rem, 3vh, 2rem);
}

.countdown {
  display: flex; flex-wrap: nowrap; align-items: flex-start; justify-content: center;
  gap: clamp(0.4rem, 1.5vw, 2rem);
  color: var(--orange);
  line-height: 0.9;
}
.countdown[data-state="imminent"] { display: none; }
.countdown[data-state="loading"] .num { opacity: 0.4; }

.seg { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; }
.num {
  font-weight: 900;
  font-size: clamp(3.5rem, 17vw, 30rem);
  text-shadow: var(--glow);
  white-space: nowrap;
}
/* Fixed-width cell per digit — Orbitron isn't monospace, so without this the
   row reflows every second as the glyph widths change. */
.num .d {
  display: inline-block;
  width: 0.64em;
  text-align: center;
}
.lbl {
  font-size: clamp(0.5rem, 1.4vw, 1rem);
  color: var(--text-dim);
  letter-spacing: 0.35em;
  margin-top: 0.6em;
}
.sep {
  font-weight: 700;
  font-size: clamp(2.5rem, 11vw, 19rem);
  color: var(--orange-dim);
  text-shadow: var(--glow);
  animation: blink 2s steps(1) infinite;
  flex-shrink: 0;
}
@keyframes blink { 0%, 50% { opacity: 1; } 51%, 100% { opacity: 0.25; } }

.imminent {
  display: none;
  font-weight: 900;
  font-size: clamp(2.5rem, 13vw, 18rem);
  color: var(--orange-hi);
  text-shadow: var(--glow);
  animation: pulse 1.1s ease-in-out infinite;
}
.countdown[data-state="imminent"] + .imminent { display: block; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.55; transform: scale(1.03); } }

.meta {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: clamp(1rem, 4vw, 4rem);
  margin-top: clamp(1.5rem, 5vh, 4rem);
}
.meta dt { font-size: clamp(0.5rem, 1.1vw, 0.8rem); color: var(--text-dim); letter-spacing: 0.3em; }
.meta dd { font-size: clamp(0.85rem, 1.8vw, 1.4rem); color: var(--text); margin-top: 0.4em; text-shadow: 0 0 6px rgba(255,113,0,0.3); }

.scroll-hint {
  position: absolute; bottom: 3vh; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.4rem;
  color: var(--text-dim); text-decoration: none; font-size: 0.7rem; letter-spacing: 0.3em;
  opacity: 0; transition: color 0.2s, opacity 0.5s ease;
}
.scroll-hint:hover { color: var(--orange-hi); }

/* ── Kiosk idle behaviour ──────────────────────────────────── */
/* Untouched (no "active" class) → pure clock: cursor and scroll hint hidden.
   Any pointer/touch/key activity adds .active for a few seconds (see app.js). */
body:not(.active) { cursor: none; }
body.active .scroll-hint { opacity: 1; }
.scroll-hint .chev { font-size: 1.6rem; animation: bob 1.8s ease-in-out infinite; }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(6px); } }

/* ── History ───────────────────────────────────────────────── */
.history {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 6vh 4vw 2vh;
}
.history-frame {
  width: min(1400px, 96vw); margin: 0 auto; flex: 1;
  display: flex; flex-direction: column;
}
.subtitle {
  font-weight: 500; font-size: clamp(1rem, 2.6vw, 1.8rem);
  letter-spacing: 0.3em; color: var(--orange-hi); text-shadow: var(--glow);
}
.caption {
  font-size: clamp(0.6rem, 1.2vw, 0.85rem); color: var(--text-dim);
  letter-spacing: 0.15em; text-transform: none; margin: 0.8rem 0 1.6rem; max-width: 60ch;
}
.chart-wrap {
  position: relative; flex: 1; min-height: 320px;
  border: 1px solid rgba(255,113,0,0.2); background: var(--bg-panel); padding: 1rem;
}
#tickChart { width: 100% !important; height: 100% !important; }
.chart-empty {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: var(--text-dim); letter-spacing: 0.2em; font-size: clamp(0.8rem, 2vw, 1.2rem); text-align: center; padding: 2rem;
}
/* The .chart-empty display:flex above outranks the [hidden] attribute's
   UA display:none, so hidden had no effect. Restore it explicitly. */
.chart-empty[hidden] { display: none; }

/* ── About / SEO content ───────────────────────────────────── */
.about {
  padding: 8vh 4vw 2vh;
}
.about-frame {
  width: min(900px, 92vw); margin: 0 auto;
}
.about p {
  text-transform: none; letter-spacing: 0.02em; line-height: 1.7;
  color: var(--text); font-size: clamp(0.85rem, 1.6vw, 1.05rem);
  margin: 0.9rem 0; max-width: 75ch;
}
.about strong { color: var(--orange-hi); font-weight: 500; }
.about a { color: var(--orange); text-decoration: none; border-bottom: 1px solid rgba(255,113,0,0.4); }
.about a:hover { color: var(--orange-hi); }
.about .q {
  font-weight: 500; text-transform: none; letter-spacing: 0.04em;
  color: var(--orange); font-size: clamp(1rem, 2vw, 1.3rem);
  margin: 2rem 0 0.4rem;
}
.about abbr { text-decoration: none; border-bottom: 1px dotted var(--text-dim); cursor: help; }

.disclaimer {
  width: min(900px, 92vw); margin: 2.5rem auto 0;
  text-transform: none; letter-spacing: 0.02em; font-size: 0.7rem; line-height: 1.5;
  color: var(--text-dim); opacity: 0.7;
}

.footer {
  width: min(900px, 92vw); margin: 1.2rem auto 0;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
  padding-top: 1.2rem; border-top: 1px solid rgba(255,113,0,0.15);
  font-size: 0.65rem; letter-spacing: 0.25em; color: var(--text-dim);
}
.footer a { color: var(--text-dim); text-decoration: none; }
.footer a:hover { color: var(--orange-hi); }

@media (max-width: 600px) {
  body { letter-spacing: 0.04em; }
  .lbl { letter-spacing: 0.2em; }
}