/* /bingo/style.css - VISTA CELULAR AZUL/AMARILLO */
:root { --yellow: #ffcc00; --bg: #0b1120; --panel: #1e293b; --cell: #0f172a; --border: #334155; }
* { box-sizing: border-box; }
body { background: var(--bg); color: #fff; font-family: system-ui, sans-serif; margin: 0; min-height: 100vh; display: flex; align-items: center; justify-content: center; }

.page { width: 100%; max-width: 450px; padding: 20px; display: flex; flex-direction: column; align-items: center; }

.join-card { background: rgba(30,41,59,0.8); padding: 30px; border-radius: 20px; width: 100%; text-align: center; border: 1px solid var(--border); }
.bingo-card { background: var(--panel); padding: 20px; border-radius: 20px; width: 100%; border: 1px solid var(--border); box-shadow: 0 15px 30px rgba(0,0,0,0.5); }
.bingo-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; border-bottom: 1px solid var(--border); padding-bottom: 10px; }
.bingo-name { font-weight: 900; font-size: 20px; color: var(--yellow); text-transform: uppercase; }

.bingo-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }

/* CELDAS AZUL PROFUNDO CON LETRA BLANCA */
.pcell { aspect-ratio: 1; background: var(--cell); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 22px; color: #fff; border: 1px solid var(--border); transition: 0.2s; }

/* CELDAS MARCADAS: AMARILLO CON LETRA NEGRA */
.pcell.marked { background: var(--yellow); color: #000; box-shadow: 0 0 10px rgba(255,204,0,0.6); border-color: var(--yellow); transform: scale(1.05); z-index: 2; }

.last-circle { width: 75px; height: 75px; background: var(--yellow); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 36px; font-weight: 900; margin: 0 auto; color: #000; border: 3px solid #fff; }
.below-area { display: flex; flex-direction: column; align-items: center; gap: 15px; margin-top: 25px; width: 100%; }
.input { height: 50px; background: #000; border: 1px solid var(--border); color: #fff; padding: 0 15px; border-radius: 12px; width: 100%; font-size: 18px; text-align: center; }
.btn { height: 50px; padding: 0 24px; border-radius: 12px; cursor: pointer; font-weight: bold; border: none; width: 100%; text-transform: uppercase; }
.btn-primary { background: var(--yellow); color: #000; }
.btn-danger { background: #450a0a; color: #fca5a5; border: 1px solid #7f1d1d; }