:root {
  --bg: #f5efe2;
  --panel: rgba(255, 250, 242, 0.88);
  --ink: #1c2430;
  --muted: #5f6770;
  --line: rgba(28, 36, 48, 0.12);
  --board: #1149b1;
  --board-shadow: #07245c;
  --slot: #dce7ff;
  --p1: #ff6b35;
  --p2: #111827;
  --p1-soft: rgba(255, 107, 53, 0.18);
  --p2-soft: rgba(17, 24, 39, 0.14);
  --accent: #2f855a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body {
  min-height: 100vh;
  overflow: hidden;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 107, 53, 0.24), transparent 34%),
    radial-gradient(circle at top right, rgba(17, 24, 39, 0.14), transparent 28%),
    linear-gradient(160deg, #efe5d2 0%, #f8f3e7 52%, #ecf2ff 100%);
}

.viewport {
  width: 100vw;
  height: 100vh;
  padding: 12px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow: hidden;
}

.app-shell {
  width: min(1100px, calc(100vw - 24px));
  margin: 0 auto;
  padding: 1rem 0 1.25rem;
  transform-origin: top center;
}

.hero {
  text-align: center;
  margin-bottom: 0.9rem;
}

.eyebrow,
.subtitle,
.score-label,
.score-hint,
.status-label,
.control-title {
  margin: 0;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.78rem;
  color: var(--muted);
}

h1 {
  margin: 0.25rem 0 0.35rem;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 0.92;
}

.subtitle {
  max-width: 38rem;
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.95rem;
}

.hud,
.controls-panel {
  display: grid;
  gap: 1rem;
}

.hud {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0.9rem 0;
}

.score-card,
.status-card,
.control-bank {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  backdrop-filter: blur(8px);
  box-shadow: 0 18px 40px rgba(28, 36, 48, 0.08);
}

.score-card,
.status-card {
  padding: 0.95rem;
}

.player-one {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(255, 107, 53, 0.1)),
    var(--panel);
}

.player-two {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(17, 24, 39, 0.08)),
    var(--panel);
}

.score-value,
.status-value {
  margin: 0.2rem 0;
  font-size: clamp(1.5rem, 2.4vw, 2.15rem);
  font-weight: 700;
}

.score-hint,
.status-label {
  color: var(--muted);
}

.toggle-row {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 0.25rem;
  color: var(--ink);
  font-weight: 700;
  font-size: 0.92rem;
}

.toggle-row input {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent);
}

.actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.7rem;
  flex-wrap: wrap;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 0.65rem 0.95rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  background: var(--ink);
  color: white;
  transition: transform 120ms ease, opacity 120ms ease, box-shadow 120ms ease;
}

button:hover,
button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 12px 22px rgba(17, 24, 39, 0.16);
}

button:active {
  transform: translateY(1px);
}

.board-wrap {
  margin: 0 auto;
  width: min(100%, 700px);
}

.board-top-labels {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.55rem;
  padding: 0 0.4rem 0.45rem;
}

.board-top-labels span {
  text-align: center;
  font-weight: 700;
  color: var(--muted);
  font-size: 0.84rem;
}

.board {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.55rem;
  padding: 0.8rem;
  border-radius: 30px;
  background:
    linear-gradient(180deg, #2a66da 0%, var(--board) 48%, #0b3788 100%);
  box-shadow:
    inset 0 -12px 0 var(--board-shadow),
    0 24px 48px rgba(7, 36, 92, 0.26);
}

.cell {
  aspect-ratio: 1 / 1;
  border-radius: 999px;
  background: var(--slot);
  box-shadow:
    inset 0 8px 14px rgba(255, 255, 255, 0.72),
    inset 0 -10px 16px rgba(17, 24, 39, 0.1);
  position: relative;
  overflow: hidden;
}

.cell::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: inherit;
  transform: scale(0.15);
  opacity: 0;
  transition: transform 150ms ease, opacity 150ms ease, background 150ms ease;
}

.cell.p1::after,
.cell.p2::after {
  transform: scale(1);
  opacity: 1;
}

.cell.p1::after {
  background: var(--p1);
}

.cell.p2::after {
  background: var(--p2);
}

.controls-panel {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 0.9rem;
}

.control-bank {
  padding: 0.85rem;
}

.control-title {
  margin-bottom: 0.55rem;
  font-weight: 700;
}

.control-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.5rem;
}

.control-key {
  min-height: 2.55rem;
  padding: 0.45rem 0.2rem;
}

.control-key[data-player="p1"] {
  background: var(--p1);
}

.control-key[data-player="p2"] {
  background: var(--p2);
}

.flash-p1 {
  box-shadow: 0 0 0 4px var(--p1-soft);
}

.flash-p2 {
  box-shadow: 0 0 0 4px var(--p2-soft);
}

@media (max-width: 800px) {
  .hud,
  .controls-panel {
    grid-template-columns: 1fr;
  }

  .board {
    gap: 0.45rem;
    padding: 0.75rem;
  }

  .board-top-labels {
    gap: 0.45rem;
    padding-inline: 0.25rem;
  }

  .control-grid {
    gap: 0.45rem;
  }
}