:root {
  --bg: #15090a;
  --panel: rgba(32, 14, 16, 0.82);
  --panel-strong: rgba(70, 16, 21, 0.9);
  --line: rgba(255, 255, 255, 0.18);
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.68);
  --red: #d81625;
  --gold: #f5d37d;
  --green: #063b30;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 12% 18%, rgba(216, 22, 37, 0.7), transparent 24rem),
    linear-gradient(120deg, rgba(255, 255, 255, 0.16) 0 1px, transparent 1px 18%),
    linear-gradient(145deg, #32070b 0%, #8b0b14 42%, #260709 100%);
}

button,
input,
select {
  font: inherit;
}

.app {
  min-height: 100vh;
  padding: 2.2rem;
  background:
    linear-gradient(112deg, transparent 0 38%, rgba(255, 255, 255, 0.15) 38.2% 38.5%, transparent 38.7%),
    linear-gradient(124deg, transparent 0 53%, rgba(255, 255, 255, 0.17) 53.2% 53.5%, transparent 53.7%),
    linear-gradient(136deg, transparent 0 64%, rgba(255, 255, 255, 0.12) 64.2% 64.7%, transparent 65%);
}

.stage {
  width: min(1600px, 100%);
  min-height: calc(100vh - 4.4rem);
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto minmax(24rem, 1fr) auto auto;
  gap: 1.3rem;
}

.topbar,
.timer-grid,
.scoreboard,
.schedule {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 1.5rem 5rem rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(10px);
}

.topbar {
  min-height: 7rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.6rem;
  border-radius: 8px;
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: var(--gold);
  font-size: clamp(1rem, 1.7vw, 1.6rem);
  font-weight: 800;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 4.8rem);
  line-height: 1;
  letter-spacing: 0;
}

.status-pill {
  min-width: 7rem;
  padding: 0.8rem 1rem;
  border: 1px solid rgba(245, 211, 125, 0.42);
  border-radius: 999px;
  color: var(--gold);
  text-align: center;
  font-weight: 900;
  white-space: nowrap;
}

.timer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(22rem, 0.72fr);
  gap: 1.2rem;
  padding: 1.5rem;
  border-radius: 8px;
}

.clock-panel {
  min-width: 0;
  display: grid;
  align-content: center;
  gap: 1.3rem;
  padding: 1rem;
}

.clock {
  font-size: clamp(7rem, 18vw, 18rem);
  line-height: 0.85;
  font-weight: 1000;
  text-align: center;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 2rem rgba(216, 22, 37, 0.46);
}

.progress {
  height: 0.7rem;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
}

.progress span {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--gold), #ffffff);
  transition: width 0.25s linear;
}

.controls {
  display: grid;
  grid-template-columns: repeat(4, minmax(8rem, 1fr));
  gap: 0.7rem;
}

.controls button {
  height: 3.4rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.1);
  cursor: pointer;
  font-weight: 900;
}

.controls button:first-child {
  color: #210b0c;
  background: var(--gold);
}

.info-panel {
  display: grid;
  gap: 0.9rem;
}

.metric {
  display: grid;
  align-content: center;
  min-height: 6.2rem;
  padding: 1rem 1.15rem;
  border-left: 0.45rem solid var(--red);
  background: rgba(255, 255, 255, 0.08);
}

.metric span,
.scoreboard span,
.schedule p {
  color: var(--muted);
  font-weight: 800;
}

.metric strong {
  margin-top: 0.25rem;
  font-size: clamp(2.1rem, 4vw, 4.5rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.metric.next strong {
  font-size: clamp(1.8rem, 3.3vw, 3.8rem);
}

.scoreboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding: 1rem;
  border-radius: 8px;
}

.scoreboard label {
  display: grid;
  gap: 0.45rem;
}

.scoreboard input,
.schedule select {
  width: 100%;
  min-height: 3.2rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  color: var(--text);
  background: rgba(0, 0, 0, 0.28);
  font-weight: 900;
}

.scoreboard input {
  padding: 0 1rem;
  font-size: clamp(1.5rem, 2.4vw, 2.6rem);
  font-variant-numeric: tabular-nums;
}

.schedule {
  padding: 1rem;
  border-radius: 8px;
}

.schedule-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.8rem;
}

h2 {
  font-size: 1.35rem;
}

.schedule select {
  max-width: 18rem;
  padding: 0 0.7rem;
}

.level-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.55rem;
}

.level-card {
  min-height: 4.3rem;
  padding: 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.18);
}

.level-card.active {
  color: #1b0a0b;
  background: var(--gold);
  border-color: var(--gold);
}

.level-card small,
.level-card strong {
  display: block;
}

.level-card small {
  margin-bottom: 0.25rem;
  color: inherit;
  opacity: 0.72;
  font-weight: 900;
}

.level-card strong {
  font-size: 1.2rem;
  line-height: 1.15;
}

@media (max-width: 980px) {
  .app {
    padding: 1rem;
  }

  .stage {
    min-height: calc(100vh - 2rem);
  }

  .timer-grid,
  .scoreboard {
    grid-template-columns: 1fr;
  }

  .controls,
  .level-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .schedule-head,
  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .schedule select {
    max-width: none;
  }
}