:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel2: #1f2937;
  --text: #f9fafb;
  --muted: #9ca3af;
  --accent: #38bdf8;
  --euro: #024066;
  --primitiva: #008547;
  --accent2: #facc15;
  --line: rgba(255,255,255,.1);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #1e3a8a 0, transparent 35%), var(--bg);
  color: var(--text);
}

.hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 38px 22px 20px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-weight: 700;
  font-size: 12px;
}

h1 { margin: 0; font-size: clamp(30px, 5vw, 52px); line-height: 1; }
.hero p:not(.eyebrow) { color: var(--muted); max-width: 720px; }

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 12px;
  min-width: 300px;
}

.stats div, .card {
  background: rgba(255,255,255,.06);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 16px;
  backdrop-filter: blur(8px);
}

.stats span, .card span {
  display: block;
  font-size: 26px;
  font-weight: 800;
}
small { color: var(--muted); }

.app {
  max-width: 1180px;
  margin: 0 auto;
  padding: 20px 22px 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.panel {
  background: rgba(17,24,39,.86);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 20px;
  box-shadow: 0 24px 80px rgba(0,0,0,.28);
}

.tabs { display: flex; gap: 10px; margin-bottom: 16px; }
.tab, button, select {
  border: 1px solid var(--line);
  background: var(--panel2);
  color: var(--text);
  border-radius: 14px;
  padding: 11px 14px;
  font-weight: 700;
}
.tab.active { background: var(--accent); color: #082f49; }

.controls {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  align-items: center;
  margin-bottom: 18px;
}
.simple-controls { margin-top: -2px; }
.primary { background: var(--accent); color: #082f49; cursor: pointer; }
.secondary { cursor: pointer; }
button:hover { filter: brightness(1.07); }

.selector {
  margin-top: 18px;
  background: #ffffff;
  color: #111827;
  border-radius: 18px;
  padding: 18px 18px 20px;
  box-shadow: inset 0 0 0 1px rgba(15,23,42,.08), 0 12px 26px rgba(0,0,0,.18);
}
.selector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.selector-header h2 { margin: 0 0 14px; font-size: 18px; color: #111827; }
.selector-header span { color: var(--accent); font-weight: 800; }

.matrixGrid {
  display: grid;
  gap: 7px;
  width: min(100%, 520px);
  margin: 0 auto;
  padding: 8px;
  border-radius: 16px;
  background: #ffffff;
}
.matrixGrid.primitiva { grid-template-columns: repeat(5, 42px); justify-content: center; }
.matrixGrid.euromillones { grid-template-columns: repeat(6, 42px); justify-content: center; }
.matrixBall,
.cell.empty {
  width: 34px;
  height: 34px;
  min-height: 34px;
  border-radius: 999px;
  display: grid;
  place-items: center;
}
.matrixBall {
  border: 1px solid #e5e7eb;
  background: #ffffff;
  color: #000000;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 2px 7px rgba(0,0,0,.12), inset 0 1px 0 rgba(255,255,255,.9);
  transition: transform .12s ease, filter .12s ease, box-shadow .12s ease, background .12s ease;
}
.matrixBall:hover { transform: translateY(-1px) scale(1.04); box-shadow: 0 5px 12px rgba(0,0,0,.18); }
.matrixGrid.euromillones .matrixBall.selected { background: var(--euro); border-color: var(--euro); color: #fff; }
.matrixGrid.primitiva .matrixBall.selected { background: var(--primitiva); border-color: var(--primitiva); color: #fff; }
.cell.empty { background: transparent; border: 0; box-shadow: none; pointer-events: none; }

.grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 8px;
}
.ball {
  aspect-ratio: 1;
  border-radius: 999px;
  display: grid;
  place-items: center;
  cursor: pointer;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  color: #000;
  font-weight: 800;
  box-shadow: 0 2px 7px rgba(0,0,0,.12);
}
.ball.selected {
  background: var(--euro);
  border-color: var(--euro);
  color: #fff;
}
.stars .ball.selected {
  background: var(--accent2);
  color: #422006;
  border-color: var(--accent2);
}

.summaryCards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.hint {
  margin: 18px 0;
  color: var(--muted);
  background: rgba(255,255,255,.05);
  border: 1px dashed var(--line);
  padding: 14px;
  border-radius: 18px;
}
.tableWrap {
  overflow: auto;
  max-height: 620px;
  border: 1px solid var(--line);
  border-radius: 18px;
}
table { width: 100%; border-collapse: collapse; min-width: 620px; }
th, td { padding: 12px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { position: sticky; top: 0; background: #0b1220; z-index: 1; }
.hit { color: var(--accent); font-weight: 900; }
.starHit { color: var(--accent2); font-weight: 900; }
footer { color: var(--muted); text-align: center; padding: 24px; }

@media (max-width: 900px) {
  .hero, .app { grid-template-columns: 1fr; display: grid; }
  .hero { align-items: start; }
  .stats { min-width: 0; }
}
@media (max-width: 520px) {
  .matrixGrid.primitiva { grid-template-columns: repeat(5, 34px); gap: 5px; }
  .matrixGrid.euromillones { grid-template-columns: repeat(6, 32px); gap: 5px; }
  .matrixBall, .cell.empty { width: 30px; height: 30px; min-height: 30px; font-size: 12px; }
  .summaryCards { grid-template-columns: 1fr; }
  .controls { justify-content: stretch; }
  .controls button { flex: 1; }
}


/* V4: matrices centradas y tamaños uniformes */
.selector {
  background: #ffffff;
  border-radius: 18px;
  padding: 22px 22px 24px;
}
.matrixGrid {
  width: 100%;
  margin: 0 auto;
  padding: 10px 0;
  background: #ffffff;
  justify-content: center;
  align-items: center;
  justify-items: center;
}
.matrixGrid.primitiva {
  grid-template-columns: repeat(5, 52px);
  gap: 12px 18px;
}
.matrixGrid.euromillones {
  grid-template-columns: repeat(6, 52px);
  gap: 12px 18px;
}
.matrixBall,
.cell.empty,
.ball {
  width: 46px;
  height: 46px;
  min-width: 46px;
  min-height: 46px;
  aspect-ratio: auto;
  font-size: 18px;
  line-height: 1;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.matrixBall {
  border: 1px solid #e5e7eb;
  background: #ffffff;
  color: #000000;
  font-weight: 900;
  box-shadow: 0 4px 10px rgba(15, 23, 42, .14), inset 0 1px 0 rgba(255,255,255,.95);
}
.matrixGrid.euromillones .matrixBall.selected {
  background: #024066;
  border-color: #024066;
  color: #ffffff;
}
.matrixGrid.primitiva .matrixBall.selected {
  background: #008547;
  border-color: #008547;
  color: #ffffff;
}
.stars-grid {
  grid-template-columns: repeat(12, 46px);
  gap: 10px;
  justify-content: center;
  justify-items: center;
}
.stars .ball {
  width: 46px;
  height: 46px;
  min-width: 46px;
  min-height: 46px;
  font-size: 18px;
}
.stars .ball.selected {
  background: #facc15;
  color: #422006;
  border-color: #facc15;
}
@media (max-width: 900px) {
  .matrixGrid.primitiva { grid-template-columns: repeat(5, 48px); gap: 10px 12px; }
  .matrixGrid.euromillones { grid-template-columns: repeat(6, 44px); gap: 9px 8px; }
  .matrixBall, .cell.empty, .ball { width: 40px; height: 40px; min-width: 40px; min-height: 40px; font-size: 16px; }
  .stars-grid { grid-template-columns: repeat(6, 40px); }
  .stars .ball { width: 40px; height: 40px; min-width: 40px; min-height: 40px; font-size: 16px; }
}
@media (max-width: 520px) {
  .selector { padding: 16px 10px 18px; }
  .matrixGrid.primitiva { grid-template-columns: repeat(5, 42px); gap: 8px 6px; }
  .matrixGrid.euromillones { grid-template-columns: repeat(6, 38px); gap: 7px 4px; }
  .matrixBall, .cell.empty, .ball { width: 34px; height: 34px; min-width: 34px; min-height: 34px; font-size: 14px; }
  .stars-grid { grid-template-columns: repeat(6, 34px); }
  .stars .ball { width: 34px; height: 34px; min-width: 34px; min-height: 34px; font-size: 14px; }
}