:root {
    --accent-color: #fee440;
}

html {
    scroll-behavior: smooth;
}

.card-3d {
    perspective: 1000px;
}

.card-inner {
    transform-style: preserve-3d;
    transform: rotateX(60deg);
    transition: transform 0.6s;
}

.card-inner.flipped {
    transform: rotateX(60deg) rotateY(180deg);
}

.card-face {
    backface-visibility: hidden;
    border-radius: 0.75rem;
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.card-front {
    background-image: url('public/front.png');
    background-size: cover;
    background-position: center;
}

.card-back {
    background-image: url('public/back.png');
    background-size: cover;
    background-position: center;
    transform: rotateY(180deg);
}

.accent-color {
    color: var(--accent-color);
}

.accent-bg {
    background-color: var(--accent-color);
}

.accent-border {
    border-color: var(--accent-color);
}

.sample-card {
    width: 200px;
    background: white;
    border-radius: 0.5rem;
    padding: 1rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid rgba(0, 0, 0, 0.05);
    text-align: center;
}

.card-preview {
    width: 32px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-color), #f59e0b);
    border-radius: 4px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    animation-duration: 1s;
    animation-iteration-count: infinite;
}

#hover-hint {
    transition: opacity 0.3s ease-out;
}