:root {
  --bg: #0d1b1e;
  --bg-soft: #13282d;
  --panel: rgba(13, 27, 30, 0.86);
  --panel-solid: #112328;
  --line: rgba(203, 230, 225, 0.15);
  --text: #ecf7f3;
  --muted: #a6c3bc;
  --blue: #57b4ff;
  --orange: #ff9c54;
  --green: #72f0a6;
  --danger: #ff6b6b;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans KR", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(87, 180, 255, 0.18), transparent 30%),
    radial-gradient(circle at top right, rgba(255, 156, 84, 0.18), transparent 24%),
    linear-gradient(135deg, #071113 0%, #0d1b1e 55%, #162a2f 100%);
}

.app-shell {
  max-width: 1480px;
  margin: 0 auto;
  padding: 24px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  letter-spacing: 0.18em;
  font-size: 0.8rem;
}

h1,
h2 {
  margin: 0;
}

h1 {
  font-family: "Black Han Sans", sans-serif;
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: 0.02em;
}

.subtitle {
  max-width: 780px;
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.hero-panel,
.arena-card,
.guide-card,
.control-card,
.score-card,
.roster-card,
.log-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero-panel {
  min-width: 250px;
  padding: 18px;
}

.panel-row,
.score-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-row + .panel-row,
.score-row + .score-row {
  margin-top: 10px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 20px;
}

.arena-card {
  padding: 18px;
}

.guide-card {
  padding: 18px;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.guide-item {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.guide-item strong {
  display: block;
  margin-bottom: 6px;
}

.guide-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

canvas {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, #122328 0%, #0a1518 100%);
  background-size: 40px 40px, 40px 40px, auto;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 14px;
  color: var(--muted);
}

.dot,
.box {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  margin-right: 6px;
  vertical-align: middle;
}

.blue {
  background: var(--blue);
}

.orange {
  background: var(--orange);
}

.green {
  background: var(--green);
}

.box {
  border-radius: 2px;
  background: #7e918e;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.control-card,
.score-card,
.roster-card,
.log-card {
  padding: 18px;
}

.control-card label {
  display: block;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

.toggle-row {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.toggle-row input[type="checkbox"] {
  width: 22px;
  height: 22px;
  margin-top: 0;
  accent-color: #72f0a6;
  cursor: pointer;
}

select,
input[type="range"],
button {
  width: 100%;
  margin-top: 8px;
}

select,
button {
  font: inherit;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

select {
  padding: 12px 14px;
  color: var(--text);
  background: rgba(17, 35, 40, 0.96);
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

select:focus {
  outline: 2px solid rgba(114, 240, 166, 0.55);
  outline-offset: 2px;
}

select option {
  color: var(--text);
  background: var(--panel-solid);
}

select option:checked,
select option:hover,
select option:focus {
  color: #091214;
  background: #a8ffcf;
}

button {
  padding: 12px 14px;
  cursor: pointer;
  color: #091214;
  background: linear-gradient(135deg, #a8ffcf 0%, #72f0a6 100%);
  font-weight: 700;
}

button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

button:hover {
  transform: translateY(-1px);
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}

.hint,
.score-detail {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.team-blue strong,
.team-blue span {
  color: var(--blue);
}

.team-orange strong,
.team-orange span {
  color: var(--orange);
}

#roster,
#log {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.roster-item,
.log-item {
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.roster-item strong {
  display: block;
  margin-bottom: 4px;
}

.log-card {
  min-height: 220px;
}

#log {
  max-height: 280px;
  overflow: auto;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .guide-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    flex-direction: column;
  }

  .hero-panel {
    width: 100%;
  }
}