/* Custom CSS for Dijital İstanbul Website */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Animation classes */
.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Custom button hover effects */
.btn-hover {
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-hover:hover::before {
    left: 100%;
}

/* Custom gradient backgrounds */
.gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-bg-blue {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
}

/* Custom shadows */
.shadow-custom {
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.shadow-custom-lg {
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Mobile menu animation */
.mobile-menu-enter {
    transform: translateY(-100%);
    opacity: 0;
}

.mobile-menu-enter-active {
    transform: translateY(0);
    opacity: 1;
    transition: all 0.3s ease;
}

.mobile-menu-exit {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu-exit-active {
    transform: translateY(-100%);
    opacity: 0;
    transition: all 0.3s ease;
}

/* Form focus states */
.form-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #3b82f6;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2563eb;
}

/* Performance optimizations */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

/* Print styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        color: black !important;
        background: white !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .text-gray-600 {
        color: #000 !important;
    }
    
    .bg-gray-50 {
        background-color: #fff !important;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .auto-dark {
        background-color: #1f2937;
        color: #f9fafb;
    }
}

/* Custom utilities */
.text-shadow {
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.backdrop-blur {
    backdrop-filter: blur(10px);
}

/* Floating WhatsApp Button */
.floating-whatsapp {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.floating-whatsapp:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.floating-whatsapp svg {
    width: 30px;
    height: 30px;
    color: white;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* Mobile responsive floating button */
@media (max-width: 768px) {
    .floating-whatsapp {
        bottom: 15px;
        right: 15px;
        width: 55px;
        height: 55px;
    }
    
    .floating-whatsapp svg {
        width: 25px;
        height: 25px;
    }
}

/* Contact form specific styles */
.contact-form-success {
    background-color: #d1fae5;
    border-color: #10b981;
    color: #065f46;
}

.contact-form-error {
    background-color: #fee2e2;
    border-color: #ef4444;
    color: #991b1b;
}

/* Portfolio hover effects */
.portfolio-item {
    transition: all 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-5px);
}

/* Service card animations */
.service-card {
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* Loading states */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

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

/* Accessibility improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus indicators */
.focus-visible:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* Custom typography */
.heading-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}