/* ============================================================
   css/cartas.css – Card Explainer Section (3D Flip)
   ============================================================ */

.cartas-section {
    padding: 80px 0 60px;
}

/* ── Card Type Filter Tabs ── */
.cartas-tabs {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.cartas-tab {
    padding: 8px 20px;
    border-radius: 50px;
    font-size: .85rem;
    font-weight: 600;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-dim);
    cursor: pointer;
    transition: var(--transition);
}

.cartas-tab.active,
.cartas-tab:hover {
    background: rgba(212, 168, 67, .1);
    border-color: rgba(212, 168, 67, .35);
    color: var(--gold);
}

/* ── Cards Grid ── */
.cartas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 24px;
}

/* ── Individual Flip Card ── */
.flip-card {
    height: 330px;
    perspective: 900px;
    cursor: pointer;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform .65s cubic-bezier(.4, 0, .2, 1);
}

.flip-card:hover .flip-card-inner,
.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

/* Front & Back share layout */
.flip-front,
.flip-back {
    position: absolute;
    inset: 0;
    border-radius: calc(var(--radius) + 2px);
    backface-visibility: hidden;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    padding: 18px;
    box-sizing: border-box;
    border: 1px solid var(--card-border);
}

/* Front: card illustration */
.flip-front {
    background: linear-gradient(160deg, var(--navy-mid), var(--navy));
    box-shadow: var(--shadow-card);
}

.flip-front-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: brightness(.85) saturate(1.1);
}

.flip-front-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(transparent 45%, rgba(8, 18, 38, .75) 100%);
}

.flip-front-info {
    position: relative;
    z-index: 1;
    text-align: center;
    width: 100%;
}

.flip-series-badge {
    display: inline-block;
    font-size: .65rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: 50px;
    margin-bottom: 6px;
}

.flip-card-name {
    font-size: 1rem;
    font-weight: 800;
    line-height: 1.2;
}

.flip-score {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 5px;
    font-size: .78rem;
    color: var(--gold);
    font-weight: 700;
}

/* Back: explanation */
.flip-back {
    background: linear-gradient(145deg, var(--navy-mid), rgba(var(--navy-mid-rgb), .98));
    transform: rotateY(180deg);
    align-items: flex-start;
    justify-content: center;
    gap: 12px;
    box-shadow: 0 8px 32px rgba(212, 168, 67, .12);
    border-color: rgba(212, 168, 67, .25);
}

.flip-back-badge {
    font-size: .65rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: 50px;
}

.flip-back h3 {
    font-size: 1rem;
    font-weight: 800;
    color: var(--gold);
    margin: 0;
}

.flip-back p {
    font-size: .82rem;
    color: var(--text-dim);
    line-height: 1.6;
    margin: 0;
}

.flip-back-stats {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.flip-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(212, 168, 67, .08);
    border: 1px solid rgba(212, 168, 67, .2);
    border-radius: 8px;
    padding: 6px 12px;
}

.flip-stat-val {
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--gold);
    line-height: 1;
}

.flip-stat-lbl {
    font-size: .62rem;
    color: var(--text-dim);
    font-weight: 600;
    letter-spacing: .06em;
}

/* ── Series Colors ── */
.series-islas {
    background: rgba(40, 160, 80, .15);
    color: #40d080;
    border-color: rgba(40, 160, 80, .3);
}

.series-especiales {
    background: rgba(212, 168, 67, .15);
    color: var(--gold);
    border-color: rgba(212, 168, 67, .3);
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .cartas-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .flip-card {
        height: 280px;
    }
}

@media (max-width: 480px) {
    .cartas-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .flip-card {
        height: 260px;
    }
}

/* ── Rules Badge ── */
.badge-nios {
    color: var(--white);
    background: var(--navy-mid);
    padding: 2px 10px;
    border-radius: 6px;
    font-weight: 700;
    transition: color 0.4s ease, background-color 0.4s ease;
    border: 1px solid var(--card-border);
}

[data-theme="light"] .badge-nios {
    color: #000000;
}