/* 
 * Memory Game - Epic RPG Parchment Style 
 */

.memory-container {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: radial-gradient(circle at center, #2b1b3d 0%, #0f0f1a 100%);
    color: #f8f0e0;
    font-family: 'Cinzel', serif;
    padding: 20px;
    box-sizing: border-box;
    overflow-x: hidden;
}

/* ==========================================================================
   Setup Screen (Parchment Menu)
   ========================================================================== */
.memory-setup {
    background: #fdf5e6;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(139, 69, 19, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 80% 80%, rgba(139, 69, 19, 0.05) 0%, transparent 20%);
    border: 4px solid #8b5a2b;
    border-radius: 10px;
    box-shadow: 
        inset 0 0 40px rgba(139, 69, 19, 0.2),
        0 20px 50px rgba(0,0,0,0.8);
    padding: 40px 50px;
    text-align: center;
    color: #4a2e15;
    max-width: 600px;
    margin: auto;
    position: relative;
}

/* Torn edges effect using box-shadows */
.memory-setup::before {
    content: '';
    position: absolute;
    top: 5px; left: 5px; right: 5px; bottom: 5px;
    border: 1px solid rgba(139, 69, 19, 0.3);
    pointer-events: none;
}

.memory-setup h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 1px 1px 2px rgba(255,255,255,0.8);
}

.memory-setup p {
    font-family: 'Nunito', sans-serif;
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: #5c3a21;
}

.setup-group {
    margin-bottom: 25px;
    text-align: left;
}

.setup-group label {
    display: block;
    font-size: 1.2rem;
    margin-bottom: 10px;
    font-weight: bold;
    border-bottom: 1px solid rgba(139, 69, 19, 0.2);
    padding-bottom: 5px;
}

.setup-options {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.setup-btn {
    flex: 1;
    background: linear-gradient(to bottom, #f4e8d1, #e3cfa1);
    border: 2px solid #a67c52;
    padding: 12px 20px;
    border-radius: 5px;
    font-family: 'Cinzel', serif;
    font-weight: bold;
    color: #4a2e15;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.setup-btn:hover {
    background: linear-gradient(to bottom, #fdf5e6, #ebd7ad);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.setup-btn.active {
    background: linear-gradient(to bottom, #8a2b2b, #5c1818);
    color: #f8f0e0;
    border-color: #3a0d0d;
    box-shadow: inset 0 3px 6px rgba(0,0,0,0.3);
}

.btn-start-game {
    display: inline-block;
    width: 100%;
    background: linear-gradient(to bottom, #d4af37, #aa8014);
    border: 2px solid #fff;
    color: #fff;
    font-family: 'Cinzel', serif;
    font-size: 1.5rem;
    padding: 15px 30px;
    border-radius: 8px;
    cursor: pointer;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
    margin-top: 20px;
    transition: all 0.3s;
}

.btn-start-game:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.6);
}

/* ==========================================================================
   Game Board
   ========================================================================== */
.memory-game-area {
    width: 100%;
    max-width: 900px;
    display: none; /* Hidden until started */
    flex-direction: column;
    gap: 20px;
}

.memory-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0,0,0,0.5);
    padding: 15px 25px;
    border-radius: 10px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    backdrop-filter: blur(5px);
}

.player-stats {
    display: flex;
    gap: 30px;
}

.player-score {
    font-size: 1.2rem;
    color: #ccc;
    transition: color 0.3s, transform 0.3s;
    padding: 5px 10px;
    border-radius: 5px;
}

.player-score.active-turn {
    color: #FFD700;
    font-weight: bold;
    transform: scale(1.1);
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid rgba(255, 215, 0, 0.5);
}

.timer-container {
    flex: 1;
    margin: 0 30px;
    height: 10px;
    background: rgba(255,255,255,0.1);
    border-radius: 5px;
    overflow: hidden;
    position: relative;
    display: none; /* Only for 2P mode */
}

.timer-bar {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, #ff4e50, #f9d423);
    transform-origin: left;
    transition: transform 0.1s linear;
}

.btn-quit {
    background: rgba(255, 0, 0, 0.2);
    border: 1px solid rgba(255,0,0,0.5);
    color: white;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'Nunito', sans-serif;
}

/* ==========================================================================
   Cards Grid
   ========================================================================== */
.memory-grid {
    display: grid;
    gap: 12px;
    justify-content: center;
    perspective: 1000px;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    box-sizing: border-box;
}

/* Grid sizes set by JS based on difficulty */
.memory-grid.grid-16 { grid-template-columns: repeat(4, 1fr); max-width: 520px; }
.memory-grid.grid-24 { grid-template-columns: repeat(6, 1fr); max-width: 780px; }
.memory-grid.grid-36 { grid-template-columns: repeat(6, 1fr); max-width: 780px; }

.memory-card {
    width: 100%;
    aspect-ratio: 1 / 1;
    position: relative;
    cursor: pointer;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0.0, 0.2, 1);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.5);
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
}

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

.memory-card.matched {
    transform: rotateY(180deg) scale(0.95);
    filter: brightness(0.7) contrast(1.2);
    pointer-events: none;
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.8);
}

.card-face {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 2px solid #5c3a21;
}

.card-back {
    background: #2a1616;
    background-image: 
        repeating-linear-gradient(45deg, rgba(0,0,0,0.1) 0, rgba(0,0,0,0.1) 2px, transparent 2px, transparent 4px),
        radial-gradient(circle at center, #4a1f1f 0%, #1a0a0a 100%);
    color: #d4af37;
    font-size: clamp(1.2rem, 4vw, 2.5rem);
    display: flex;
    justify-content: center;
    align-items: center;
    text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}

/* O "verso" da carta no HTML é a frente da imagem */
.card-front {
    transform: rotateY(180deg);
    background: #f8f0e0;
}

.card-front img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.3s ease;
}

/* Fallback para quando a imagem falha ao carregar */
.card-front.img-error img {
    opacity: 0;
    display: none;
}

.card-front.img-error::after {
    content: '✨';
    font-size: clamp(1.2rem, 4vw, 2.5rem);
    color: #d4af37;
    filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.5));
    animation: pulse-zen 2s infinite ease-in-out;
}

@keyframes pulse-zen {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 1; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 600px) {
    .memory-container {
        padding: 10px;
    }

    .memory-grid {
        gap: 8px;
    }

    .memory-grid.grid-16 { grid-template-columns: repeat(4, 1fr); }
    .memory-grid.grid-24 { grid-template-columns: repeat(4, 1fr); }
    .memory-grid.grid-36 { grid-template-columns: repeat(6, 1fr); }

    .memory-setup {
        padding: 20px 15px;
        width: 100%;
        box-sizing: border-box;
    }

    .player-stats {
        flex-direction: column;
        gap: 5px;
    }

    .timer-container {
        margin: 10px 0;
    }

    .memory-header {
        flex-direction: column;
        gap: 10px;
    }
}

/* ==========================================================================
   Loading Bar (Pre-validation)
   ========================================================================== */
.memory-loading-bar {
    width: 200px;
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
    overflow: hidden;
}

.memory-loading-fill {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #d4af37, #ffd700, #d4af37);
    background-size: 200% 100%;
    animation: memory-loading-shimmer 1.5s ease-in-out infinite;
    border-radius: 3px;
}

@keyframes memory-loading-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}