/* ---------------------------------------------------------
   VARIABLEN
--------------------------------------------------------- */
:root {
    --primary-color: #6C63FF;
    --secondary-color: #f8f9fa;
    --text-color: #343a40;

    --light-shadow: 0 5px 16px rgba(0,0,0,0.08);
    --border-radius: 14px;

    --board-max-width: 1200px;
}


/* ---------------------------------------------------------
   PAGE LAYOUT & FOOTER FIX
--------------------------------------------------------- */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

#main-content {
    flex: 1 0 auto;
}

footer {
    flex-shrink: 0;
}



/* ---------------------------------------------------------
   BOARD WRAPPER / CENTRING
--------------------------------------------------------- */
#board-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
}

#board-container {
    width: 100%;
    max-width: var(--board-max-width);
    padding: 25px;
    margin: 0 auto;
    border-radius: 20px;
    background: #fafafa;
    box-shadow: var(--light-shadow);
}



/* ---------------------------------------------------------
   GRID
--------------------------------------------------------- */
#board {
    display: grid;
    grid-template-columns: repeat(var(--cols, 4), 1fr);
    width: 100%;
    margin: 0 auto;
    gap: 14px;
}

#board {
    display: grid;
    grid-template-columns: repeat(var(--cols, 4), 1fr); /* Fallback → 4 */
}


/* ---------------------------------------------------------
   RESPONSIVE TUNING
--------------------------------------------------------- */
@media (min-width: 1600px) {
    #board { gap: 12px; max-width: 1100px; }
}

@media (min-width: 2000px) {
    #board { gap: 10px; max-width: 1300px; }
}

@media (min-width: 2600px) {
    #board { gap: 8px; max-width: 1500px; }
}

@media (min-width: 3400px) {
    #board {
        gap: 6px;
        max-width: 1600px;
    }
    .game-card { max-width: 160px; max-height: 160px; }
}

@media (max-width: 600px) {
    #board { gap: 8px; }
}



/* ---------------------------------------------------------
   KARTEN / CARD BASE STYLE (FEHLTE BEI DIR!)
--------------------------------------------------------- */
.game-card {
    aspect-ratio: 1 / 1;
    position: relative;
    cursor: pointer;
    perspective: 800px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

/* Hover Effekt */
.game-card:hover:not(.matched) {
    transform: translateY(-5px);
    box-shadow: 0 12px 18px rgba(0,0,0,0.12);
}


/* ---------------------------------------------------------
   FLIP INNENLEBEN – WICHTIG!
--------------------------------------------------------- */
.cardInner {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.6s ease;
}

.game-card.flip .cardInner {
    transform: rotateY(180deg);
}

.cardFront,
.cardBack {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.cardFront {
    transform: rotateY(180deg);
}


/* ---------------------------------------------------------
   BILDER – korrekt einpassen
--------------------------------------------------------- */
.cardFront img,
.cardBack img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


/* ---------------------------------------------------------
   MATCHED ZUSTAND
--------------------------------------------------------- */
.game-card.matched {
    opacity: 0.6;
    cursor: default;
    pointer-events: none;
    transform: scale(0.96);
}