html {
    scroll-behavior: smooth;
}

.glass {
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-card {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.8), rgba(51, 65, 85, 0.6));
}

.hover-lift {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-8px) scale(1.02);
}

.text-shadow {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.loading-spinner {
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.custom-scrollbar {
    scrollbar-width: thin;
    scrollbar-color: #475569 #1e293b;
}

.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
    background: #1e293b;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
    background: #475569;
    border-radius: 3px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.animation-delay-200 {
    animation-delay: 0.2s;
}

.animation-delay-400 {
    animation-delay: 0.4s;
}

@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

.modal-overlay {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.modal-content {
    max-height: 90vh;
    overflow-y: auto;
}

.file-upload-area {
    border: 2px dashed #475569;
    transition: all 0.3s ease;
}

.file-upload-area:hover {
    border-color: #3b82f6;
    background-color: rgba(59, 130, 246, 0.1);
}

.file-upload-area.dragover {
    border-color: #3b82f6;
    background-color: rgba(59, 130, 246, 0.2);
}

.password-strength {
    height: 4px;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.strength-weak { background: #ef4444; width: 25%; }
.strength-medium { background: #f59e0b; width: 50%; }
.strength-strong { background: #10b981; width: 75%; }
.strength-very-strong { background: #059669; width: 100%; }

.developer-profile {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 3px solid transparent;
    background: linear-gradient(45deg, #3b82f6, #8b5cf6) border-box;
    background-clip: border-box;
}

.developer-profile::before {
    content: '';
    position: absolute;
    inset: -3px;
    padding: 3px;
    background: linear-gradient(45deg, #3b82f6, #8b5cf6, #10b981, #f59e0b);
    border-radius: inherit;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: xor;
    animation: rotate-slow 4s linear infinite;
}

.developer-profile:hover {
    transform: scale(1.2) rotate(5deg);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4), 
                0 0 40px rgba(139, 92, 246, 0.3);
    filter: brightness(1.1);
}

.developer-profile:hover::before {
    animation-duration: 1s;
}

.developer-card {
    transition: all 0.3s ease;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.05));
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.developer-card:hover {
    transform: translateY(-5px);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.1));
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.developer-name {
    background: linear-gradient(45deg, #3b82f6, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 3s ease-in-out infinite alternate;
}

.developer-role {
    color: #94a3b8;
    transition: color 0.3s ease;
}

.developer-card:hover .developer-role {
    color: #cbd5e1;
}

.tooltip {
    position: absolute;
    bottom: -70px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.tooltip::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid rgba(0, 0, 0, 0.9);
}

.developer-profile:hover .tooltip {
    opacity: 1;
    visibility: visible;
    bottom: -65px;
    transform: translateX(-50%) scale(1.05);
}

.social-links {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    justify-content: center;
}

.social-link {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.social-link:hover {
    transform: translateY(-2px) scale(1.1);
    background: rgba(59, 130, 246, 0.2);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
}

.whatsapp-input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.country-code {
    position: absolute;
    left: 12px;
    color: #9ca3af;
    font-weight: 500;
    z-index: 10;
    pointer-events: none;
}

.whatsapp-input {
    padding-left: 48px !important;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem !important;
    }
    
    .product-grid {
        grid-template-columns: 1fr !important;
    }
    
    .category-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    
    .modal-content {
        margin: 1rem !important;
        width: calc(100% - 2rem) !important;
        max-width: none !important;
    }
    
    .header-nav {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .mobile-hidden {
        display: none !important;
    }

    .developer-profile {
        width: 40px;
        height: 40px;
    }

    .developer-card {
        padding: 12px !important;
    }

    .social-link {
        width: 24px;
        height: 24px;
    }

    .social-links {
        gap: 6px;
    }
}

@media (max-width: 640px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.5rem !important;
    }
    
    .category-item {
        padding: 0.75rem !important;
        font-size: 0.75rem !important;
    }
    
    .product-card {
        margin: 0.5rem 0 !important;
    }

    .hero-title {
        font-size: 1.75rem !important;
    }

    .developer-profile {
        width: 35px;
        height: 35px;
    }

    .developer-card {
        padding: 8px !important;
    }

    .developer-name {
        font-size: 0.75rem !important;
    }

    .developer-role {
        font-size: 0.65rem !important;
    }

    .social-link {
        width: 20px;
        height: 20px;
    }
}

/* Image loading placeholder */
.image-placeholder {
    background: linear-gradient(45deg, #334155, #475569);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
}

.image-error {
    background: linear-gradient(45deg, #7f1d1d, #991b1b);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fca5a5;
}

.product-image {
    transition: opacity 0.3s ease;
}

.product-image.loading {
    opacity: 0.5;
}

/* OTP Input Styles */
.otp-digit {
    transition: all 0.2s ease;
}

.otp-digit:focus {
    transform: scale(1.05);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.otp-digit.filled {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.5);
    color: #22c55e;
}

.otp-digit.error {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.5);
    animation: shake 0.5s ease-in-out;
}

.timer-active {
    color: #22c55e;
    font-weight: 600;
}

.timer-warning {
    color: #f59e0b;
    font-weight: 600;
}

.timer-expired {
    color: #ef4444;
    font-weight: 600;
}

/* OTP Animation Effects */
@keyframes otpPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.otp-success {
    animation: otpPulse 0.6s ease-in-out;
    background: rgba(34, 197, 94, 0.2) !important;
    border-color: #22c55e !important;
}

@keyframes otpError {
    0%, 20%, 40%, 60%, 80%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-2px); }
}

.otp-container-error {
    animation: otpError 0.5s ease-in-out;
}