:root {
  --bg0: #0e1019;
  --bg1: #1b1430;
  --bg2: #2a1b3d;
  --ink: #ece9e1;
  --muted: #8e8ca3;
  --amber: #ffb24a;
  --amber-soft: #ffcf94;
  --line: rgba(255, 255, 255, 0.08);
  --card: rgba(255, 255, 255, 0.035);
}

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

body {
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(120% 80% at 50% -10%, var(--bg2) 0%, var(--bg1) 38%, var(--bg0) 78%);
  background-attachment: fixed;
  display: flex;
  justify-content: center;
  padding: clamp(1.25rem, 4vw, 3rem) 1.25rem 3rem;
}

.bat-bg {
  position: fixed;
  top: 7%;
  left: 50%;
  width: min(70vw, 520px);
  transform: translateX(-50%);
  fill: rgba(255, 255, 255, 0.035);
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 560px;
}

.loading { color: var(--muted); text-align: center; padding: 3rem 0; }

header { text-align: center; margin-bottom: 2.25rem; }

h1 {
  font-size: clamp(1.7rem, 6vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.place {
  color: var(--muted);
  margin-top: 0.4rem;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.label {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--muted);
  margin-bottom: 0.6rem;
}

/* tonight */
.tonight {
  text-align: center;
  padding: 2rem 1.25rem 2.25rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.time {
  font-size: clamp(3.4rem, 16vw, 5.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 38px rgba(255, 178, 74, 0.28);
}
.time.off { color: var(--muted); text-shadow: none; }

.range {
  margin-top: 0.7rem;
  font-size: 1.05rem;
  color: var(--amber-soft);
}
.range b {
  color: var(--amber);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.sub { margin-top: 0.55rem; color: var(--muted); font-size: 0.9rem; }
.time.off + .sub { color: var(--muted); }

.sunset {
  margin-top: 1.1rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

/* banner */
.banner {
  margin: 1.1rem 0 2rem;
  padding: 0.85rem 1.1rem;
  border-radius: 12px;
  font-size: 0.92rem;
  line-height: 1.45;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  color: var(--ink);
}
.banner.peak {
  background: rgba(255, 178, 74, 0.1);
  border-color: rgba(255, 178, 74, 0.4);
  color: var(--amber-soft);
}
.banner.off { color: var(--muted); }
.banner.lull {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 178, 74, 0.22);
  color: var(--amber-soft);
}

/* what-shifts-the-time */
.factors { margin-top: 2.25rem; }

/* week */
.nights { list-style: none; }
.nights li {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 0.5rem 1rem;
  padding: 0.85rem 0.25rem;
  border-bottom: 1px solid var(--line);
}
.nights li:last-child { border-bottom: none; }

.r-day { font-size: 1rem; }
.r-time {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}
.r-time.off { color: var(--muted); font-weight: 500; }
.r-note {
  grid-column: 2;
  justify-self: end;
  color: var(--muted);
  font-size: 0.78rem;
}

/* report form */
.report {
  margin-top: 2.25rem;
  padding: 1.5rem 1.25rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.report-intro {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
  margin-bottom: 1.1rem;
}
.field { margin-bottom: 0.9rem; }
.field label { display: block; font-size: 0.82rem; margin-bottom: 0.35rem; }
.field label span { color: var(--muted); }
.field input {
  width: 100%;
  padding: 0.7rem 0.8rem;
  font-size: 1rem;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.field input::placeholder { color: var(--muted); }
.field input:focus { outline: none; border-color: var(--amber); }
.field input[type="date"]::-webkit-calendar-picker-indicator,
.field input[type="time"]::-webkit-calendar-picker-indicator {
  filter: invert(1) opacity(0.55);
  cursor: pointer;
}
#r-submit {
  width: 100%;
  margin-top: 0.3rem;
  padding: 0.8rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--bg0);
  background: var(--amber);
  border: none;
  border-radius: 10px;
  cursor: pointer;
}
#r-submit:hover { background: var(--amber-soft); }
.report-status { margin-top: 0.8rem; font-size: 0.9rem; min-height: 1.1em; }
.report-status.ok { color: var(--amber-soft); }
.report-status.err { color: #ff8a8a; }

/* about / education */
.about { margin-top: 2.25rem; }
.about > p { font-size: 0.98rem; line-height: 1.6; }
.about i { color: var(--amber-soft); font-style: italic; }
.facts { list-style: none; margin: 1.2rem 0; }
.facts li {
  padding: 0.1rem 0 0.1rem 0.95rem;
  border-left: 2px solid rgba(255, 178, 74, 0.4);
  margin-bottom: 0.85rem;
  font-size: 0.92rem;
  line-height: 1.55;
}
.facts b { color: var(--amber-soft); }
.watch { font-size: 0.92rem; line-height: 1.6; color: var(--muted); }
.watch b { color: var(--ink); }

/* footer */
footer { margin-top: 2.5rem; color: var(--muted); font-size: 0.85rem; line-height: 1.55; }
footer a { color: var(--amber-soft); }
footer p + p { margin-top: 0.7rem; }
.fine { font-size: 0.78rem; opacity: 0.8; }