/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

:root {
  --bg: #0e1116;
  --panel: rgba(20, 24, 32, 0.78);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text: #e8ecf2;
  --text-dim: #9aa3b2;
  --accent: #c8a96a;
  --epic: #b07cff;
  --legendary: #f0b04a;
  --good: #5dd39e;
  --bad: #e57373;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  --radius: 14px;
  --transition: 220ms cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
}

body {
  background-image: url("images/background.jpg");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
}

.bg-overlay {
  position: fixed; inset: 0;
  background: linear-gradient(180deg, rgba(8,10,14,0.75) 0%, rgba(8,10,14,0.92) 100%);
  z-index: -1;
}

/* ---------- Layout ---------- */
.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.hero { text-align: center; margin-bottom: 28px; }
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 8px;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.6);
}
.subtitle { color: var(--text-dim); margin: 0; font-size: 1rem; }

/* ---------- Matchup ---------- */
.matchup {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: stretch;
}

.cs-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 18px;
  cursor: pointer;
  color: inherit;
  font: inherit;
  text-align: left;
  transition: transform var(--transition),
              box-shadow var(--transition),
              border-color var(--transition),
              opacity var(--transition);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
  overflow: hidden;
  min-height: 420px;
}

.cs-card::before {
  /* Shine sweep on click */
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,0.18) 50%, transparent 70%);
  transform: translateX(-110%);
  transition: transform 700ms ease;
  pointer-events: none;
}

.cs-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255,255,255,0.2);
}

.cs-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.cs-card.chosen {
  animation: chosen 500ms ease;
  border-color: var(--good);
}
.cs-card.chosen::before { transform: translateX(110%); }

.cs-card.rejected {
  opacity: 0.25;
  transform: scale(0.96);
  filter: grayscale(0.6);
}

.cs-card.swap-out {
  opacity: 0;
  transform: translateY(8px) scale(0.98);
}

.cs-card.swap-in {
  animation: swapIn 360ms ease both;
}

@keyframes chosen {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.04); box-shadow: 0 16px 40px rgba(93, 211, 158, 0.35); }
  100% { transform: scale(1); }
}
@keyframes swapIn {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}

.cs-image-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, #1a1f29, #0f131a);
  border-radius: 10px;
  display: grid;
  place-items: center;
  overflow: hidden;
  margin-bottom: 14px;
}
.cs-image-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.cs-image-wrap.no-image::after {
  content: "No image";
  color: var(--text-dim);
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

.cs-info { display: flex; flex-direction: column; gap: 8px; flex: 1; }
.cs-info h2 { font-size: 1.15rem; margin: 0; line-height: 1.3; }
.cs-info p  { font-size: 0.92rem; color: var(--text-dim); margin: 0; line-height: 1.4; }

.cs-rarity {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  padding: 3px 8px;
  border-radius: 4px;
  align-self: flex-start;
  font-weight: 600;
}
.rarity-epic      { background: rgba(176,124,255,0.15); color: var(--epic);      border: 1px solid rgba(176,124,255,0.35); }
.rarity-legendary { background: rgba(240,176,74,0.15);  color: var(--legendary); border: 1px solid rgba(240,176,74,0.35); }

.vote-hint {
  position: absolute;
  top: 14px; right: 14px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  background: rgba(0,0,0,0.4);
  padding: 4px 8px;
  border-radius: 4px;
  opacity: 0;
  transition: opacity var(--transition);
}
.cs-card:hover .vote-hint { opacity: 1; }

.vs {
  align-self: center;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--accent);
  text-shadow: 0 2px 8px rgba(0,0,0,0.6);
  padding: 0 4px;
}

/* ---------- Controls ---------- */
.controls {
  margin-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.rankings-btn {
  background: var(--accent);
  color: #1a1408;
  border: none;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  letter-spacing: 0.3px;
  transition: transform var(--transition), filter var(--transition);
}
.rankings-btn:hover { transform: translateY(-1px); filter: brightness(1.1); }

.stats { color: var(--text-dim); font-size: 0.9rem; }

/* ---------- Modal ---------- */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  display: grid;
  place-items: center;
  z-index: 100;
  padding: 20px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: fadeIn 180ms ease;
}
.modal[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-content {
  background: #14181f;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 640px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  animation: modalIn 220ms ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--panel-border);
}
.modal-header h2 { margin: 0; font-size: 1.2rem; }
.close-btn {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 6px;
  opacity: 0.7;
  transition: opacity var(--transition);
}
.close-btn:hover { opacity: 1; }

.rankings-list {
  list-style: none;
  margin: 0;
  padding: 8px 0;
  overflow-y: auto;
}
.rankings-list li {
  display: grid;
  grid-template-columns: 40px 1fr auto auto;
  gap: 12px;
  padding: 10px 20px;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.95rem;
}
.rankings-list li:last-child { border-bottom: none; }
.rankings-list .rank {
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
  font-weight: 600;
}
.rankings-list .name { font-weight: 500; }
.rankings-list .record { color: var(--text-dim); font-size: 0.8rem; font-variant-numeric: tabular-nums; }
.rankings-list .rating { color: var(--accent); font-weight: 600; font-variant-numeric: tabular-nums; min-width: 50px; text-align: right; }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .matchup {
    grid-template-columns: 1fr;
  }
  .vs { padding: 4px 0; font-size: 1rem; }
  .cs-card { min-height: 0; }
  .controls { justify-content: center; text-align: center; }
}