:root {
  --bg: #120f1d;
  --bg-2: #1d1731;
  --card: rgba(33, 27, 48, 0.96);
  --primary: #f59e0b;
  --primary-strong: #f97316;
  --text: #f8fafc;
  --muted: #d9d5f2;
  --panel: rgba(14, 10, 23, 0.76);
  --border: rgba(255, 255, 255, 0.1);
  --shadow: rgba(15, 23, 42, 0.45);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at top, rgba(245, 158, 11, 0.18), transparent 28%),
    linear-gradient(135deg, var(--bg), var(--bg-2));
  color: var(--text);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.app {
  width: min(92vw, 700px);
}

.dice-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: 0 24px 60px var(--shadow);
  padding: 32px 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
}

h1 {
  margin: 0;
  font-size: clamp(2.1rem, 4vw, 3.1rem);
}

.exit-btn {
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 10px 15px;
  cursor: pointer;
  font-weight: 700;
}

.controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(110px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

label {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

select {
  width: 100%;
  background: rgba(15, 10, 23, 0.8);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 12px;
  font-size: 1rem;
}

.roll-btn {
  width: 100%;
  border: none;
  border-radius: 14px;
  padding: 16px 18px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 800;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  box-shadow: 0 12px 30px rgba(249, 115, 22, 0.35);
  transition: transform 0.2s ease;
}

.roll-btn:hover {
  transform: translateY(-1px);
}

.result-panel {
  margin-top: 28px;
  display: grid;
  gap: 18px;
}

.dice-display {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  min-height: 96px;
  align-items: center;
  justify-content: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
}

.die {
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, #f9fafb, #e2e8f0);
  color: #111827;
  font-weight: 900;
  font-size: 2rem;
  box-shadow: inset 0 0 0 2px rgba(17, 24, 39, 0.1);
  animation: pop 0.3s ease;
}

@keyframes pop {
  0% { transform: scale(0.8) rotate(-8deg); opacity: 0; }
  100% { transform: scale(1) rotate(0); opacity: 1; }
}

.total-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
}

.total-box span {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
}

.total-box strong {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
}

@media (max-width: 540px) {
  .dice-card {
    padding: 22px 18px;
  }

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