:root {
  --bg: #f4f7fc;
  --bg-deep: #e8eef8;
  --panel: #ffffff;
  --panel-line: #d0dced;
  --accent: #1a6dff;
  --accent-deep: #0b3d99;
  --accent-soft: #3d8bff;
  --accent-glow: rgba(26, 109, 255, 0.14);
  --text: #0f1b2d;
  --text-secondary: #4a5d78;
  --muted: #7a8ba3;
  --btn-text: #ffffff;
  --ghost-border: #b8c8e0;
  --chip: #eef3fb;
  --terminal-bg: #0b1a33;
  --terminal-text: #9ec5ff;
  --radius: 10px;
  --fs: 14px;
  --fs-sm: 12px;
  --fs-xs: 11px;
  --fs-title: 18px;
  --fs-num: 20px;
}

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

html, body {
  min-height: 100%;
  background:
    linear-gradient(180deg, rgba(26, 109, 255, 0.06), transparent 28%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 23px,
      rgba(26, 109, 255, 0.035) 23px,
      rgba(26, 109, 255, 0.035) 24px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 23px,
      rgba(26, 109, 255, 0.035) 23px,
      rgba(26, 109, 255, 0.035) 24px
    ),
    radial-gradient(720px 320px at 100% -10%, #cfe0ff 0%, transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: "DIN Alternate", "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
  font-size: var(--fs);
  -webkit-font-smoothing: antialiased;
}

body {
  padding: 14px 12px calc(72px + env(safe-area-inset-bottom, 0px));
  max-width: 480px;
  margin: 0 auto;
  animation: fadeIn .3s ease both;
}

.app { min-height: 60vh; }

.page { animation: fadeIn .22s ease both; }
.page[hidden] { display: none !important; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

.hero { margin-bottom: 10px; }

.brand-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-block { min-width: 0; flex: 1; }
.accent-bar {
  width: 3px;
  height: 26px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-deep));
  box-shadow: 0 0 10px var(--accent-glow);
  flex-shrink: 0;
}
.brand {
  font-size: var(--fs-title);
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.2;
  color: var(--accent-deep);
}
.brand-sub {
  margin-top: 2px;
  color: var(--accent);
  font-size: var(--fs-xs);
  letter-spacing: .04em;
}
.chip {
  background: linear-gradient(135deg, #e8f0ff, #ffffff);
  border: 1px solid var(--panel-line);
  color: var(--accent-deep);
  font-size: var(--fs-xs);
  padding: 4px 8px;
  border-radius: 8px;
  flex-shrink: 0;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset;
}

.period-board {
  margin-top: 10px;
  display: flex;
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  padding: 10px 12px;
  box-shadow: 0 8px 24px rgba(15, 40, 90, 0.06);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.period-board:active {
  background: #f7faff;
}
.period-board::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.period-board .col { flex: 1; min-width: 0; }
.vline {
  width: 1px;
  background: var(--panel-line);
  margin: 0 10px;
}
.label {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: .08em;
}
.num {
  margin-top: 2px;
  font-size: var(--fs-num);
  font-weight: 800;
  color: var(--text);
}
.num.accent { color: var(--accent); }
.meta {
  margin-top: 2px;
  color: var(--text-secondary);
  font-size: var(--fs-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.status-pill {
  margin-top: 8px;
  background: var(--chip);
  border: 1px solid var(--panel-line);
  border-radius: 8px;
  padding: 7px 10px;
  color: var(--text-secondary);
  font-size: var(--fs-xs);
  line-height: 1.45;
  white-space: pre-line;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 10px 0;
}

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 8px 10px;
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  font-weight: 600;
  text-decoration: none;
  color: var(--text);
  border: 1px solid transparent;
  transition: transform .12s ease, background .15s ease, box-shadow .15s ease;
  cursor: pointer;
  user-select: none;
}
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .45; pointer-events: none; }
.btn.flat {
  background: linear-gradient(135deg, var(--accent-soft), var(--accent-deep));
  color: var(--btn-text);
  box-shadow: 0 6px 16px var(--accent-glow);
}
.btn.ghost {
  background: rgba(255, 255, 255, 0.82);
  border-color: var(--ghost-border);
  color: var(--accent-deep);
}
.btn.ghost:active {
  background: var(--accent-glow);
}
.btn.full {
  width: calc(100% - 24px);
  margin: 0 12px 12px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  margin-top: 8px;
  overflow: hidden;
  box-shadow: 0 8px 22px rgba(15, 40, 90, 0.05);
}

.panel-head {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 0 12px;
  color: var(--muted);
  font-size: var(--fs-xs);
  letter-spacing: .06em;
  border-bottom: 1px solid var(--panel-line);
  background: linear-gradient(180deg, #f8fbff, #ffffff);
}
.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.linkish {
  margin-left: auto;
  appearance: none;
  background: none;
  border: 0;
  color: var(--accent);
  font-size: var(--fs-xs);
  cursor: pointer;
  padding: 6px 0;
}

.busy {
  margin-left: auto;
  width: 12px;
  height: 12px;
  border: 2px solid #c9d8f0;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 12px;
}
.chips .btn {
  min-width: 48px;
  min-height: 34px;
  background: var(--chip);
  border-color: var(--ghost-border);
  color: var(--accent-deep);
  font-weight: 500;
}
.chips .btn.on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.live-wrap {
  padding: 8px;
  background: #0b1a33;
}
#liveFrame {
  width: 100%;
  height: min(42vh, 280px);
  border: 0;
  border-radius: 6px;
  background: #000;
  display: block;
}
#liveVideo {
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 42vh;
  background: #000;
  display: block;
  border-radius: 6px;
}
.live-tip {
  margin-top: 6px;
  color: #8fb0d8;
  font-size: var(--fs-xs);
  text-align: center;
}

.trend-scroll {
  max-height: 42vh;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}
.trend-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}
.trend-table th,
.trend-table td {
  padding: 8px 10px;
  text-align: center;
  border-bottom: 1px solid var(--panel-line);
}
.trend-table th {
  position: sticky;
  top: 0;
  background: #eef3fb;
  color: var(--muted);
  font-weight: 600;
  font-size: var(--fs-xs);
}
.trend-table td { color: var(--text); }
.trend-table tr:first-child td {
  color: var(--accent-deep);
  font-weight: 700;
  background: rgba(26, 109, 255, 0.06);
}
.color-red { color: #e53935; }
.color-blue { color: #1a6dff; }
.color-green { color: #2e7d32; }

.terminal {
  background: var(--terminal-bg);
  border-color: #1e3a66;
}
.terminal .panel-head {
  background: linear-gradient(180deg, #12274a, #0d203c);
  border-bottom-color: #1e3a66;
  color: #8fb0d8;
}
.terminal .dot {
  background: #4da3ff;
  box-shadow: 0 0 0 3px rgba(77, 163, 255, 0.2);
}

#out,
#outTrend,
#outHist,
#outLive {
  margin: 0;
  padding: 10px 12px;
  min-height: 120px;
  max-height: 36vh;
  overflow: auto;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: var(--fs-sm);
  line-height: 1.55;
  color: var(--terminal-text);
  background:
    linear-gradient(90deg, rgba(77, 163, 255, 0.05), transparent 40%),
    var(--terminal-bg);
  white-space: pre-wrap;
  word-break: break-word;
}
#out { min-height: 160px; max-height: 40vh; }

.quick-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 10px;
}
.qlink {
  appearance: none;
  min-height: 36px;
  border-radius: 8px;
  border: 1px solid var(--panel-line);
  background: rgba(255, 255, 255, 0.9);
  color: var(--accent-deep);
  font-size: var(--fs-xs);
  font-weight: 600;
  cursor: pointer;
}
.qlink:active { background: var(--accent-glow); }
.qlink:disabled { opacity: .45; pointer-events: none; }

.tabbar {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: min(480px, 100%);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 6px 8px calc(6px + env(safe-area-inset-bottom, 0px));
  background: rgba(255, 255, 255, 0.94);
  border-top: 1px solid var(--panel-line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 50;
  box-shadow: 0 -8px 24px rgba(15, 40, 90, 0.06);
}
.tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: var(--fs-xs);
  font-weight: 600;
  min-height: 40px;
  border-radius: 8px;
  cursor: pointer;
  letter-spacing: .04em;
}
.tab span {
  display: inline-block;
  padding: 6px 0 2px;
  border-bottom: 2px solid transparent;
}
.tab.on { color: var(--accent-deep); }
.tab.on span { border-bottom-color: var(--accent); }
.tab:disabled { opacity: .4; pointer-events: none; }

footer {
  margin-top: 12px;
  margin-bottom: 8px;
  text-align: center;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: .1em;
}

.gate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(232, 238, 248, 0.96);
  padding: 24px;
}
.gate[hidden] { display: none !important; }
.gate-card {
  width: min(320px, 100%);
  padding: 24px 20px;
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  text-align: center;
  box-shadow: 0 16px 40px rgba(15, 40, 90, 0.12);
}
.gate-title {
  font-size: 18px;
  font-weight: 700;
  color: #d32f2f;
  margin-bottom: 8px;
}
.gate-msg {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.5;
}
body.denied .hero,
body.denied .actions,
body.denied .panel,
body.denied .quick-links,
body.denied .tabbar,
body.denied footer {
  filter: grayscale(0.35);
  opacity: 0.4;
  pointer-events: none;
}