:root {
    --bg: #b45f06;
    --paper: #f4e1c1;
    --ink: #111;
    --accent: #ff6600;
    --yellow: #ffcc00;
}


* { box-sizing: border-box; margin: 0; padding: 0; }


body {
    background: var(--bg);
    background-image: repeating-linear-gradient(
        45deg,
        rgba(255,255,255,0.06),
        rgba(255,255,255,0.06) 3px,
        transparent 3px,
        transparent 8px
    );
    font-family: Arial, Helvetica, sans-serif;
    color: var(--ink);
}


header {
    max-width: 1200px;
    margin: 30px auto;
    background: var(--yellow);
    border: 4px solid #000;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: 50px;
    height: 50px;
    background: #fff;
    border: 2px solid #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo img { max-width: 100%; max-height: 100%; }

.brand h1 {
    font-family: "Comic Sans MS", Arial;
    font-size: 28px;
}

nav a {
    margin-left: 20px;
    text-decoration: none;
    font-weight: bold;
    color: #000;
    background: #fff;
    padding: 4px 6px;
    border: 2px solid #000;
}

nav a:hover {
    background: var(--accent);
    color: #fff;
}


main {
    max-width: 1200px;
    margin: 40px auto 80px;
    padding: 0 20px;
}

.page-title {
    margin-bottom: 20px;
    background: var(--accent);
    color: #fff;
    display: inline-block;
    padding: 6px 10px;
    border: 3px solid #000;
}


.filters {
    margin-bottom: 30px;
}

.filters button {
    background: #fff;
    border: 3px solid #000;
    padding: 6px 12px;
    margin-right: 10px;
    font-weight: bold;
    cursor: pointer;
}

.filters button.active,
.filters button:hover {
    background: var(--accent);
    color: #fff;
}


.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(252px, 1fr));
    gap: 40px;
    justify-items: center;
}


.card { perspective: 1200px; }


.card-inner {
    width: 252px;
    height: 352px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s;
    cursor: pointer;
}

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


.card-face {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    border: 3px solid #000;
    box-shadow: 6px 6px 0 #000;
    padding: 10px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-face::after {
    content: "";
    position: absolute;
    inset: 6px;
    border: 1px solid rgba(0,0,0,0.4);
    pointer-events: none;
}


.card-front {
    background: var(--paper);
    transform: rotate(-1deg);
}

.card:nth-child(2n) .card-front { transform: rotate(1.5deg); }
.card:nth-child(3n) .card-front { transform: rotate(-2deg); }

.card-art {
    width: 100%;
    height: 190px;
    border: 2px solid #000;
    background: #000;
    overflow: hidden;
}

.card-art img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-info h3 {
    margin: 10px 0 4px;
    font-size: 18px;
    background: var(--accent);
    color: #fff;
    display: inline-block;
    padding: 3px 6px;
}

.mtg-colors { font-size: 16px; }

.card-front small {
    font-size: 12px;
    text-align: center;
}


.card-back {
    transform: rotateY(180deg);
    background:
        radial-gradient(circle at center, #c96, #4a2a14),
        repeating-linear-gradient(
            45deg,
            rgba(0,0,0,0.15),
            rgba(0,0,0,0.15) 4px,
            transparent 4px,
            transparent 8px
        );
    color: #fff;
    text-shadow: 1px 1px 2px #000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
}

.card-back::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.55);
}

.card-back > * { position: relative; }

.card-back h3 {
    background: #000;
    padding: 4px 6px;
    margin-bottom: 10px;
}

.card-back p {
    font-size: 14px;
    margin-bottom: 15px;
}

.card-back a {
    text-decoration: none;
    background: var(--yellow);
    color: #000;
    padding: 8px 14px;
    border: 3px solid #000;
    font-weight: bold;
}

.card-back a:hover {
    background: var(--accent);
    color: #fff;
}


.card.hidden {
    display: none;
}