/* ============================================================================
   ORACLE CARDS SYSTEM
   Cards with flip animation, responsive grid, theme-aware
   ============================================================================ */

/* ============================================================================
   ORACLE COVERS GRID (Index Page)
   ============================================================================ */

.oracle-covers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

.oracle-cover-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: relative;
}

.oracle-cover-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px var(--shadow-color);
}

.oracle-cover-card:active {
    transform: translateY(-4px);
}

.oracle-cover-image {
    width: 100%;
    aspect-ratio: 2092/3200;
    object-fit: cover;
    display: block;
    background: var(--overlay-gradient);
}

/* Overlay que aparece solo en hover */
.oracle-cover-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.7), transparent);
    padding: 2rem 1.5rem 1.5rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.oracle-cover-card:hover .oracle-cover-overlay {
    opacity: 1;
    transform: translateY(0);
}

.oracle-cover-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: white;
    margin: 0 0 0.5rem 0;
    text-align: center;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.oracle-cover-description {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
    text-align: center;
    margin: 0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* ============================================================================
   ORACLE CARDS GRID (View Page)
   ============================================================================ */

.oracle-header {
    text-align: center;
    padding: 0 0 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.oracle-title {
    font-family: 'Dancing Script', cursive;
    font-size: 3rem;
    font-weight: 400;
    color: var(--primary);
    margin: 0 0 1rem 0;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.oracle-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
    font-weight: 300;
}

.oracle-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 2rem;
    padding: 2rem 0 4rem;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

/* ============================================================================
   CARD FLIP ANIMATION
   ============================================================================ */

.oracle-card {
    perspective: 1000px;
    cursor: pointer;
    width: 100%;
    aspect-ratio: 2092/2966;
    position: relative;
}

.oracle-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    border-radius: 12px;
}

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

.oracle-card-front,
.oracle-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 12px;
    overflow: hidden;
    background: var(--card-bg);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.oracle-card-front {
    transform: rotateY(0deg);
}

.oracle-card-back {
    transform: rotateY(180deg);
}

.oracle-card-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    -webkit-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
}

.oracle-card-number {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    padding: 1rem;
    text-align: center;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
}

/* Hover effect */
.oracle-card:hover .oracle-card-inner {
    box-shadow: 0 8px 24px var(--shadow-color);
}

.oracle-card:active .oracle-card-inner {
    transform: scale(0.98);
}

.oracle-card.flipped:active .oracle-card-inner {
    transform: rotateY(180deg) scale(0.98);
}

/* ============================================================================
   BACK TO COVERS BUTTON
   ============================================================================ */

.oracle-back-section {
    text-align: center;
    margin: 2rem 0;
}

.oracle-back-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--accent-color);
    color: var(--accent-text-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px var(--shadow-color);
}

.oracle-back-button:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.oracle-back-button:active {
    transform: translateY(0);
}

/* ============================================================================
   EMPTY STATE
   ============================================================================ */

.oracle-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.oracle-empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.oracle-empty-title {
    font-size: 1.5rem;
    color: var(--text-color);
    margin: 0 0 1rem 0;
}

.oracle-empty-text {
    font-size: 1rem;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 1200px) {
    .oracle-covers-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 1.5rem;
    }
    
    .oracle-cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .oracle-title {
        font-size: 2rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .oracle-covers-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 1rem;
        padding: 1rem 0;
    }
    
    .oracle-cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1rem;
        padding: 1rem 0 3rem;
    }
    
    .oracle-cover-info {
        padding: 1rem;
    }
    
    .oracle-cover-title {
        font-size: 1.2rem;
    }
    
    .oracle-cover-description {
        font-size: 0.85rem;
    }
    
    /* Modal en mobile */
    .oracle-card-large {
        height: 60vh;
        max-height: 500px;
    }
    
    .oracle-modal-close {
        top: -50px;
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .oracle-flip-button {
        padding: 0.625rem 1.25rem;
        font-size: 0.85rem;
    }
    
    .oracle-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .oracle-covers-grid,
    .oracle-cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 0.75rem;
    }
    
    .oracle-title {
        font-size: 1.75rem;
    }
    
    .oracle-description {
        font-size: 1rem;
    }
    
    /* Modal en mobile pequeño */
    .oracle-card-large {
        height: 55vh;
        max-height: 450px;
    }
    
    .oracle-modal-close {
        top: -45px;
        width: 36px;
        height: 36px;
        font-size: 18px;
    }
    
    .oracle-flip-button {
        padding: 0.625rem 1rem;
        font-size: 0.8rem;
        gap: 0.375rem;
    }
    
    .oracle-title {
        font-size: 2rem;
    }
    
    .flip-icon {
        font-size: 1.5rem;
    }
}

/* ============================================================================
   MODAL FOR ENLARGED CARD
   ============================================================================ */

.oracle-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.oracle-modal.active {
    opacity: 1;
    pointer-events: all;
}

.oracle-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    cursor: pointer;
}

.oracle-modal-content {
    position: relative;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    max-width: 90vw;
    max-height: 90vh;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.oracle-modal.active .oracle-modal-content {
    transform: scale(1);
}

/* Carta grande en modal */
.oracle-card-large {
    height: 70vh;
    max-height: 700px;
    width: auto;
    aspect-ratio: 2092/2966;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.oracle-card-large .oracle-card-inner {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.oracle-modal-close {
    position: absolute;
    top: -60px;
    right: 0;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.oracle-modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: rotate(90deg);
}

/* Botón de girar - estilo moderno con color del tema */
.oracle-flip-button {
    background: var(--glass-primary);
    color: var(--primary);
    border: 2px solid var(--glass-border);
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    letter-spacing: 0.5px;
}

.oracle-flip-button:hover {
    background: var(--glass-light);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px var(--glow-very-faint);
}

.oracle-flip-button:active {
    transform: translateY(0);
}

.flip-icon {
    font-size: 24px;
    display: inline-block;
    transition: transform 0.3s ease;
}

.oracle-flip-button:hover .flip-icon {
    transform: rotate(180deg);
}

/* ============================================================================
   ACCESSIBILITY
   ============================================================================ */

.oracle-card:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 4px;
}

.oracle-cover-card:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 4px;
}

.oracle-modal-close:focus-visible,
.oracle-flip-button:focus-visible {
    outline: 3px solid white;
    outline-offset: 4px;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .oracle-card-inner,
    .oracle-cover-card,
    .oracle-back-button {
        transition: none;
    }
    
    .oracle-card:hover .oracle-card-inner {
        transform: none;
    }
}

/* ============================================================================
   LOADING STATE
   ============================================================================ */

.oracle-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    color: var(--text-muted);
    font-size: 1.2rem;
}

.oracle-loading::after {
    content: '...';
    animation: loading-dots 1.5s infinite;
}

@keyframes loading-dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}