/* Credit Card Visual Styles */
.credit-card-visual {
    perspective: 1000px;
    max-width: 400px;
    margin: 0 auto;
    padding: 20px 0;
    position: relative;
}

.credit-card-visual::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.2) 0%, transparent 70%);
    filter: blur(40px);
    z-index: -1;
    animation: glow 3s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.card-flip-container {
    position: relative;
    width: 100%;
    height: 250px;
    transition: transform 0.8s cubic-bezier(0.4, 0.2, 0.2, 1);
    transform-style: preserve-3d;
}

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

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s cubic-bezier(0.4, 0.2, 0.2, 1);
    transform-style: preserve-3d;
}

.card-front,
.card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 
        0 25px 80px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.15) inset,
        0 0 40px rgba(255, 255, 255, 0.1);
    color: white;
    font-family: 'Courier New', 'Courier', monospace;
    overflow: hidden;
}

.card-front::before,
.card-back::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0) 50%, rgba(0, 0, 0, 0.1) 100%);
    pointer-events: none;
}

.card-front::after,
.card-back::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    animation: shimmer 3s infinite;
    pointer-events: none;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.card-chip {
    width: 55px;
    height: 42px;
    background: linear-gradient(135deg, #d4af37 0%, #f4d03f 50%, #c9a227 100%);
    border-radius: 6px;
    margin-bottom: 25px;
    position: relative;
    box-shadow: 
        0 4px 12px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.card-chip::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 8%;
    right: 8%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #8b6914, transparent);
}

.card-chip::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 25px;
    height: 20px;
    border: 1px solid rgba(139, 105, 20, 0.4);
    border-radius: 3px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.card-logo {
    position: absolute;
    top: 30px;
    right: 30px;
    font-size: 45px;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.4));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.card-number-display {
    font-size: 24px;
    letter-spacing: 4px;
    margin-bottom: 35px;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.5);
    font-weight: 600;
    position: relative;
}

.card-number-display::before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
}

.card-details {
    display: flex;
    justify-content: space-between;
    text-align: left;
}

.card-holder,
.card-expiry {
    flex: 1;
}

.card-holder .label,
.card-expiry .label {
    font-size: 9px;
    text-transform: uppercase;
    opacity: 0.9;
    margin-bottom: 8px;
    display: block;
    letter-spacing: 1px;
    font-weight: 600;
}

.card-holder .value,
.card-expiry .value {
    font-size: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

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

.card-magnetic-strip {
    background: linear-gradient(180deg, #2c3e50 0%, #1a252f 50%, #2c3e50 100%);
    height: 48px;
    margin: 30px 0;
    border-radius: 4px;
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.4),
        0 2px 4px rgba(0, 0, 0, 0.3);
    position: relative;
}

.card-magnetic-strip::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.card-magnetic-strip::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.card-cvv-strip {
    background: linear-gradient(180deg, #ffffff 0%, #f5f5f5 100%);
    color: #333;
    padding: 12px 18px;
    border-radius: 6px;
    margin-top: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 
        0 4px 12px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 1);
}

.cvv-label {
    font-size: 11px;
    font-weight: bold;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cvv-value {
    font-size: 20px;
    letter-spacing: 4px;
    font-family: 'Courier New', 'Courier', monospace;
    font-weight: 600;
    color: #1a1a1a;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
}

.card-back-logo {
    position: absolute;
    bottom: 30px;
    right: 30px;
    font-size: 45px;
    opacity: 0.95;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.4));
    animation: float 3s ease-in-out infinite;
}

/* Card type specific designs with enhanced effects */
.card-front.visa {
    background: linear-gradient(135deg, #1a1f71 0%, #0d47a1 30%, #1565c0 60%, #1976d2 100%);
}

.card-front.visa::before {
    background: radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
}

.card-front.mastercard {
    background: linear-gradient(135deg, #eb001b 0%, #f79e1b 50%, #ff6b35 100%);
}

.card-front.mastercard::before {
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
}

.card-front.amex {
    background: linear-gradient(135deg, #006fcf 0%, #00a1e4 40%, #00d4ff 70%, #00e5ff 100%);
}

.card-front.amex::before {
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.15) 50%, transparent 70%);
}

.card-front.discover {
    background: linear-gradient(135deg, #ff6600 0%, #ff9900 40%, #ffcc00 70%, #ffe066 100%);
}

.card-front.discover::before {
    background: radial-gradient(ellipse at 60% 40%, rgba(255, 255, 255, 0.25) 0%, transparent 60%);
}

.card-front.diners {
    background: linear-gradient(135deg, #0079be 0%, #005a9e 50%, #003d7a 100%);
}

.card-front.jcb {
    background: linear-gradient(135deg, #004098 0%, #0066cc 40%, #00a3e0 70%, #00c4ff 100%);
}

.card-front.default {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 40%, #f093fb 70%, #f5576c 100%);
}

/* Card back specific designs */
.card-back.visa {
    background: linear-gradient(135deg, #0d47a1 0%, #1565c0 50%, #1976d2 100%);
}

.card-back.mastercard {
    background: linear-gradient(135deg, #f79e1b 0%, #eb001b 50%, #ff6b35 100%);
}

.card-back.amex {
    background: linear-gradient(135deg, #00a1e4 0%, #00d4ff 50%, #00e5ff 100%);
}

.card-back.discover {
    background: linear-gradient(135deg, #ff9900 0%, #ffcc00 50%, #ffe066 100%);
}

.card-back.diners {
    background: linear-gradient(135deg, #005a9e 0%, #0079be 50%, #0096d6 100%);
}

.card-back.jcb {
    background: linear-gradient(135deg, #0066cc 0%, #00a3e0 50%, #00c4ff 100%);
}

.card-back.default {
    background: linear-gradient(135deg, #764ba2 0%, #f093fb 50%, #f5576c 100%);
}

/* Responsive */
@media (max-width: 768px) {
    .card-flip-container {
        height: 220px;
    }
    
    .card-number-display {
        font-size: 20px;
        letter-spacing: 3px;
    }
    
    .card-chip {
        width: 48px;
        height: 36px;
    }
    
    .card-logo,
    .card-back-logo {
        font-size: 35px;
    }
    
    .card-holder .value,
    .card-expiry .value {
        font-size: 13px;
    }
    
    .card-front,
    .card-back {
        padding: 25px;
    }
}