:root {
  --bg: #07090d;
  --panel: #10151d;
  --card: #151c26;
  --line: #283341;
  --text: #f0f4f9;
  --muted: #9aa8b9;
  --accent: #a8e2ff;
  --ok: #43e6b1;
  --warn: #e6b866;
  --err: #f38d94;
}

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

html, body {
  width: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  overflow: hidden;
}

.tabular {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  font-family: "SF Mono", "Menlo", "Consolas", "Roboto Mono", monospace;
}

.apk-root {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 28px 32px 24px;
  background:
    radial-gradient(1200px 480px at 50% -10%, rgba(168, 226, 255, 0.08), transparent 55%),
    var(--bg);
}

.apk-top {
  display: grid;
  grid-template-columns: 1.1fr 1.6fr 1fr;
  gap: 24px;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.brand-block, .clock-block, .event-block { display: flex; flex-direction: column; }
.brand-block { flex-direction: row; align-items: center; gap: 14px; }

.brand-mark {
  width: 52px;
  height: 52px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-name { letter-spacing: 0.28em; font-size: 18px; }
.brand-sub, .event-meta, .label, .center-meta, em { color: var(--muted); font-style: normal; }

.event-name { font-size: 28px; font-weight: 650; text-align: center; }
.event-meta { text-align: center; margin-top: 6px; font-size: 16px; }

.clock { font-size: 34px; text-align: right; color: var(--accent); }
.conn {
  margin-left: auto;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: 0.16em;
  font-weight: 700;
}
.conn.online { color: var(--ok); }
.conn.offline { color: var(--err); }

.apk-main {
  flex: 1;
  display: grid;
  grid-template-columns: 280px 1fr 280px;
  gap: 20px;
  padding-top: 22px;
  min-height: 0;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 16px 18px;
}

.stat-card .label { display: block; font-size: 13px; letter-spacing: 0.08em; margin-bottom: 8px; }
.stat-card strong { display: block; font-size: 28px; }
.stat-card em { display: block; margin-top: 4px; font-size: 14px; }

.center-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 24px;
}

.timer {
  font-size: 168px;
  line-height: 0.9;
  letter-spacing: 0.04em;
  color: var(--text);
}

.lifecycle {
  letter-spacing: 0.32em;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--accent);
}
.lifecycle.paused, .apk-root[data-lifecycle="paused"] .timer { color: var(--warn); }
.lifecycle.offline, .apk-root[data-lifecycle="offline"] .timer { color: var(--err); }
.lifecycle.finished { color: var(--muted); }
.lifecycle.running, .lifecycle.break { color: var(--ok); }

.banner {
  margin-top: 18px;
  padding: 10px 22px;
  letter-spacing: 0.22em;
  font-weight: 800;
  font-size: 22px;
  border: 1px solid var(--line);
}
.banner.paused { color: var(--warn); background: rgba(230, 184, 102, 0.1); }
.banner.offline { color: var(--err); background: rgba(243, 141, 148, 0.12); }
.hidden { display: none !important; }

.center-meta {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 18px;
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

.pair-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 9, 13, 0.92);
  display: grid;
  place-items: center;
}
.pair-card {
  width: min(520px, 92vw);
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pair-card h1 { font-size: 24px; }
.pair-card p { color: var(--muted); margin-bottom: 8px; }
.pair-card input {
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--text);
  height: 44px;
  padding: 0 12px;
  font-size: 16px;
}
.pair-card button {
  margin-top: 12px;
  height: 48px;
  border: 0;
  background: var(--accent);
  color: #07090d;
  font-weight: 700;
}

.qr-card { text-align: center; }
.qr-card img { width: 240px; height: 240px; background: #fff; padding: 8px; margin: 8px auto; }
.pair-code {
  font-size: 28px;
  letter-spacing: 0.28em;
  font-family: "SF Mono", Menlo, monospace;
  color: var(--accent);
}
.legacy-pair { margin-top: 16px; text-align: left; color: var(--muted); }
.legacy-pair form { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }

@media (max-width: 1100px) {
  .apk-main { grid-template-columns: 1fr; }
  .timer { font-size: 96px; }
  .apk-top { grid-template-columns: 1fr; }
}