/* ── Reset & base ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d0d1a;
  --bg2:       #1a1a2e;
  --bg3:       #12122a;
  --accent:    #00d4aa;
  --accent2:   #00af8a;
  --text:      #c8d0e8;
  --text-dim:  #6a7490;
  --text-hdr:  #00d4aa;
  --green:     #00d250;
  --yellow:    #e6c800;
  --orange:    #ff8c00;
  --red:       #dc1e1e;
  --pk-green:  #005a22;
  --pk-yellow: #645500;
  --pk-orange: #723c00;
  --pk-red:    #641212;
  --dimmed:    #1c1c32;
  --border:    #00d4aa;
  --no-data:   #41465f;
  --row-h:     26px;
  --hdr-h:     28px;
  --ftr-h:     20px;
  --pad:       5px;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Share Tech Mono', monospace;
  font-size: 13px;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

/* ── Header ──────────────────────────────────────────────────────── */
header {
  background: var(--bg2);
  border-bottom: 1px solid var(--accent);
  padding: 10px 14px 8px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

h1 {
  font-family: 'Orbitron', monospace;
  font-size: clamp(16px, 4vw, 22px);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
  line-height: 1;
}

.subtitle {
  font-size: 9px;
  color: var(--text-dim);
  letter-spacing: 0.18em;
  margin-top: 3px;
}

.byline {
  font-size: 10px;
  color: var(--text-dim);
  white-space: nowrap;
  margin-top: 2px;
}

/* ── Controls ────────────────────────────────────────────────────── */
.controls {
  background: var(--bg2);
  border-bottom: 1px solid rgba(0,212,170,0.25);
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.vantage-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.ctrl-label {
  color: var(--text-dim);
  font-size: 11px;
  white-space: nowrap;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  color: var(--text);
  font-size: 11px;
  white-space: nowrap;
}

.radio-label input[type="radio"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

.ctrl-select, .ctrl-input {
  background: var(--bg3);
  color: var(--text);
  border: 1px solid rgba(0,212,170,0.35);
  border-radius: 3px;
  padding: 3px 6px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.ctrl-select:focus, .ctrl-input:focus { border-color: var(--accent); }
.ctrl-select:disabled, .ctrl-input:disabled { opacity: 0.4; cursor: not-allowed; }

#region-select { min-width: 130px; }
#radius-select { min-width: 80px; }
#grid-input    { width: 64px; text-transform: uppercase; }

.btn-row { display: flex; gap: 8px; }

.btn {
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  font-weight: bold;
  border: 1px solid var(--accent2);
  border-radius: 4px;
  padding: 6px 14px;
  cursor: pointer;
  transition: opacity 0.15s, background 0.15s;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.btn:active { opacity: 0.75; transform: scale(0.97); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; pointer-events: none; }
.btn-start { background: var(--accent2); color: #fff; border-color: var(--accent); }
.btn-stop  { background: var(--accent2); color: #fff; border-color: var(--accent); }
.btn-reset { background: #3a3a5e; color: var(--text); border-color: #555580; }

/* ── Space-weather bar ───────────────────────────────────────────── */
#sw-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 6px 12px;
  background: var(--bg3);
  border-bottom: 1px solid rgba(0,212,170,0.2);
}

.sw-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.sw-lbl {
  font-size: 10px;
  color: var(--accent);
  white-space: nowrap;
  letter-spacing: 0.04em;
}

.sw-val {
  font-size: 10px;
  font-weight: bold;
  color: #fff;
  background: #1a7a3a;
  padding: 2px 6px;
  border-radius: 3px;
  white-space: nowrap;
  min-width: 28px;
  text-align: center;
  letter-spacing: 0.03em;
}

.sw-utc {
  font-family: 'Share Tech Mono', monospace;
  letter-spacing: 0.08em;
  min-width: 58px;
}

.sw-sep {
  flex: 1;
}

@media (max-width: 599px) {
  #sw-bar { gap: 6px 10px; padding: 5px 10px; }
  .sw-lbl { font-size: 9px; }
  .sw-val { font-size: 9px; padding: 1px 4px; }
  .sw-sep { display: none; }
}

/* ════════════════════════════════════════════════════════════════════
   DESKTOP / TABLET LAYOUT  (≥ 600px wide — the "Windows app" look)
   ════════════════════════════════════════════════════════════════════ */
.meters-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 10px 8px 4px;
  display: flex;
  justify-content: center;
}

.meters-grid {
  display: flex;
  gap: 6px;
  min-width: max-content;
  margin: 0 auto;
}

/* ── Single region panel (desktop) ───────────────────────────────── */
.region-panel {
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg2);
  width: 152px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.region-header {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  color: var(--text-hdr);
  text-align: center;
  padding: 5px 4px 4px;
  border-bottom: 1px solid rgba(0,212,170,0.3);
  letter-spacing: 0.05em;
  height: var(--hdr-h);
  display: flex;
  align-items: center;
  justify-content: center;
}

.band-rows {
  flex: 1;
  padding: var(--pad) var(--pad) 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.band-row {
  display: flex;
  align-items: center;
  height: var(--row-h);
  gap: 3px;
}

.band-label {
  font-size: 9px;
  color: var(--text);
  width: 30px;
  flex-shrink: 0;
  text-align: right;
}

.bar-wrap {
  flex: 1;
  position: relative;
  height: 14px;
  border: 1px solid rgba(0,212,170,0.25);
  border-radius: 2px;
  overflow: hidden;
  background: var(--dimmed);
}

canvas.bar-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.s-unit {
  font-size: 9px;
  width: 36px;
  text-align: right;
  flex-shrink: 0;
  color: var(--green);
}

.s-unit.no-data { color: var(--no-data); }

.region-footer {
  font-size: 9px;
  color: var(--no-data);
  text-align: center;
  padding: 4px;
  height: var(--ftr-h);
  border-top: 1px solid rgba(0,212,170,0.15);
  margin-top: 4px;
}

/* desktop: hide phone-only elements */
.phone-accordion { display: none; }

/* ════════════════════════════════════════════════════════════════════
   PHONE LAYOUT  (< 600px wide — tap-to-expand accordion)
   ════════════════════════════════════════════════════════════════════ */
@media (max-width: 599px) {

  /* hide the horizontal scroll layout entirely on phones */
  .meters-scroll { display: none; }

  /* show the accordion */
  .phone-accordion {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 8px 10px;
    overflow-y: auto;
  }

  /* ── Accordion row ─────────────────────────────────────────────── */
  .acc-row {
    border: 1px solid rgba(0,212,170,0.3);
    border-radius: 4px;
    margin-bottom: 6px;
    background: var(--bg2);
    overflow: hidden;
  }

  /* ── Collapsed header — always visible ─────────────────────────── */
  .acc-header {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    gap: 10px;
  }

  .acc-header:active { background: rgba(0,212,170,0.07); }

  .acc-region-name {
    font-family: 'Orbitron', monospace;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-hdr);
    letter-spacing: 0.05em;
    flex: 1;
  }

  /* Mini peak-band pills shown while collapsed */
  .acc-summary {
    display: flex;
    gap: 4px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .acc-pill {
    font-size: 9px;
    background: rgba(0,212,170,0.12);
    border: 1px solid rgba(0,212,170,0.3);
    border-radius: 3px;
    padding: 1px 5px;
    color: var(--accent);
    white-space: nowrap;
  }

  .acc-pill.no-data {
    background: transparent;
    border-color: rgba(100,100,130,0.3);
    color: var(--no-data);
  }

  .acc-chevron {
    font-size: 11px;
    color: var(--text-dim);
    transition: transform 0.2s ease;
    flex-shrink: 0;
    margin-left: 4px;
  }

  .acc-row.open .acc-chevron { transform: rotate(180deg); }
  .acc-row.open { border-color: var(--accent); }
  .acc-row.open .acc-header { border-bottom: 1px solid rgba(0,212,170,0.25); }

  /* ── Expanded detail panel ─────────────────────────────────────── */
  .acc-body {
    display: none;
    padding: 8px 10px 10px;
    flex-direction: column;
    gap: 4px;
  }

  .acc-row.open .acc-body { display: flex; }

  /* Band rows inside expanded panel — full-width */
  .acc-band-row {
    display: flex;
    align-items: center;
    height: 30px;
    gap: 6px;
  }

  .acc-band-label {
    font-size: 11px;
    color: var(--text);
    width: 36px;
    flex-shrink: 0;
    text-align: right;
  }

  .acc-bar-wrap {
    flex: 1;
    height: 16px;
    border: 1px solid rgba(0,212,170,0.25);
    border-radius: 2px;
    overflow: hidden;
    background: var(--dimmed);
  }

  canvas.acc-bar-canvas {
    display: block;
    width: 100%;
    height: 100%;
  }

  .acc-s-unit {
    font-size: 11px;
    width: 44px;
    text-align: right;
    flex-shrink: 0;
    color: var(--green);
  }

  .acc-s-unit.no-data { color: var(--no-data); }

  .acc-footer {
    font-size: 9px;
    color: var(--no-data);
    text-align: right;
    margin-top: 4px;
    padding-top: 4px;
    border-top: 1px solid rgba(0,212,170,0.1);
  }

  /* shrink controls on phone */
  #region-select { min-width: 100px; font-size: 10px; }
  #radius-select { min-width: 68px;  font-size: 10px; }
  .ctrl-label    { font-size: 10px; }
  .radio-label   { font-size: 10px; }
  .btn           { font-size: 11px; padding: 5px 10px; }
}

/* ── Status bar ──────────────────────────────────────────────────── */
footer#status-bar {
  position: sticky;
  bottom: 0;
  background: var(--bg2);
  border-top: 1px solid rgba(0,212,170,0.25);
  padding: 6px 12px;
  font-size: 10px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 30px;
  display: flex;
  align-items: center;
}

footer#status-bar.ok    { color: #00be64; }
footer#status-bar.warn  { color: #c89e2d; }
footer#status-bar.error { color: #dc4a4a; }

/* ── Scan line overlay ───────────────────────────────────────────── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.07) 2px, rgba(0,0,0,0.07) 4px
  );
  pointer-events: none;
  z-index: 100;
}

/* ── Desktop / installed PWA tweaks (≥ 600px) ───────────────────── */
@media (min-width: 600px) {
  .meters-scroll {
    min-height: 260px;
    align-items: flex-start;
    padding: 16px 12px 8px;
  }
  .bar-wrap { height: 16px; }
  body { padding-bottom: 32px; }
}

/* ── Scrollbar ───────────────────────────────────────────────────── */
.meters-scroll::-webkit-scrollbar { height: 4px; }
.meters-scroll::-webkit-scrollbar-track { background: var(--bg); }
.meters-scroll::-webkit-scrollbar-thumb { background: var(--accent2); border-radius: 2px; }