:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --panel-muted: #eef3fb;
  --text: #1c2430;
  --text-soft: #5f6b7a;
  --line: #d7e0ec;
  --accent: #1f6feb;
  --accent-dark: #184ea7;
  --danger: #d7263d;
  --success: #167a51;
  --shadow: 0 18px 45px rgba(28, 36, 48, 0.12);
}

* {
  box-sizing: border-box;
}

/* Page shell */
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31, 111, 235, 0.12), transparent 32%),
    linear-gradient(180deg, #fbfdff 0%, var(--bg) 100%);
}

button,
input,
textarea,
select {
  font: inherit;
}

/* Header, score, and controls */
.app-shell {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 3rem;
}

.hero {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(215, 224, 236, 0.9);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 1.5rem;
  backdrop-filter: blur(10px);
}

.eyebrow {
  margin: 0;
  color: var(--accent-dark);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0.4rem 0 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
}

.hero-copy {
  max-width: 58rem;
  margin: 0.85rem 0 0;
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.6;
}

.score-strip {
  display: inline-grid;
  grid-template-columns: auto auto auto;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
  padding: 0.85rem 1.2rem;
  background: var(--panel-muted);
  border-radius: 18px;
}

.score-strip__player {
  display: grid;
  gap: 0.15rem;
  justify-items: center;
}

.score-strip__label {
  color: var(--text-soft);
  font-size: 0.9rem;
}

.score-strip__player strong {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1;
}

.score-strip__divider {
  font-size: 1.8rem;
  color: var(--text-soft);
}

.set-banner {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 16px;
  font-weight: 700;
}

.set-banner.is-hidden {
  display: none;
}

.set-banner.match-point {
  background: #fff2cc;
  color: #7a5300;
  border: 1px solid #f0d380;
}

.set-banner.winner {
  background: #daf6e9;
  color: var(--success);
  border: 1px solid #9dd9bf;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1rem;
}

.button {
  border: none;
  border-radius: 999px;
  padding: 0.9rem 1.25rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease;
}

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

.button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
  transform: none;
}

.button--primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(31, 111, 235, 0.24);
}

.button--primary:hover {
  background: var(--accent-dark);
}

.button--secondary {
  background: #ffffff;
  color: var(--text);
  border: 1px solid var(--line);
}

/* Player boards and cards */
.boards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.player-panel,
.log-panel {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(215, 224, 236, 0.95);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 1.25rem;
}

.player-panel__top,
.log-panel__top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
}

.player-panel h2,
.log-panel h2 {
  margin: 0;
  font-size: 1.5rem;
}

.player-panel__hint,
.log-panel__hint {
  margin: 0.35rem 0 0;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.player-panel__score-box {
  min-width: 92px;
  padding: 0.75rem 0.9rem;
  background: var(--panel-muted);
  border-radius: 16px;
  text-align: center;
}

.player-panel__score-box span {
  display: block;
  color: var(--text-soft);
  font-size: 0.85rem;
}

.player-panel__score-box strong {
  display: block;
  margin-top: 0.2rem;
  font-size: 2rem;
  line-height: 1;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 2.5rem;
  margin-top: 1rem;
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  background: var(--panel-muted);
  color: var(--text-soft);
  font-weight: 700;
}

.status-badge.match-point {
  background: #fff2cc;
  color: #7a5300;
}

.status-badge.winner {
  background: #daf6e9;
  color: var(--success);
}

.character-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.9rem;
  margin-top: 1rem;
}

.character-card {
  position: relative;
  display: grid;
  gap: 0.65rem;
  padding: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.character-card:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 111, 235, 0.55);
  box-shadow: 0 14px 28px rgba(28, 36, 48, 0.12);
}

.character-card:focus-visible {
  outline: 3px solid rgba(31, 111, 235, 0.35);
  outline-offset: 2px;
}

.character-card.is-locked,
.character-card.is-locked:hover {
  transform: none;
  cursor: not-allowed;
  filter: grayscale(1);
  opacity: 0.62;
  box-shadow: none;
}

.character-card.is-locked .lock-overlay {
  opacity: 1;
}

.portrait-frame {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 14px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(31, 111, 235, 0.16), rgba(31, 111, 235, 0.04)),
    var(--panel-muted);
}

.portrait-frame img,
.portrait-fallback {
  width: 100%;
  height: 100%;
}

.portrait-frame img {
  display: block;
  object-fit: cover;
}

.portrait-fallback {
  display: grid;
  place-items: center;
  padding: 0.75rem;
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--accent-dark);
}

.portrait-fallback[hidden] {
  display: none;
}

.character-name {
  font-size: 0.98rem;
  font-weight: 700;
}

.lock-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: clamp(3rem, 7vw, 4.5rem);
  font-weight: 900;
  color: rgba(215, 38, 61, 0.92);
  text-shadow: 0 2px 8px rgba(255, 255, 255, 0.8);
  opacity: 0;
  pointer-events: none;
}

/* Match log */
.log-panel {
  margin-top: 1.5rem;
}

.empty-log {
  margin: 1rem 0 0;
  color: var(--text-soft);
}

.match-log {
  margin: 1rem 0 0;
  padding-left: 1.4rem;
  display: grid;
  gap: 0.65rem;
}

.match-log li {
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fbfcff;
}

/* Responsive layout */
@media (max-width: 900px) {
  .boards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .app-shell {
    width: min(100% - 1rem, 100%);
    padding-top: 0.75rem;
    padding-bottom: 1.5rem;
  }

  .hero,
  .player-panel,
  .log-panel {
    border-radius: 20px;
    padding: 1rem;
  }

  .score-strip {
    width: 100%;
    justify-content: center;
  }

  .player-panel__top,
  .log-panel__top {
    flex-direction: column;
  }

  .player-panel__score-box {
    width: 100%;
  }

  .character-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}