/* Custom styles for beiniw20.com */

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* Custom gradient backgrounds */
.gradient-bg-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-bg-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.gradient-bg-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

/* Hover effects */
.hover-scale {
    transition: transform 0.3s ease;
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-shadow {
    transition: box-shadow 0.3s ease;
}

.hover-shadow:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Custom button styles */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    border: 2px solid #667eea;
    color: #667eea;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

/* Navigation enhancements */
nav a {
    position: relative;
    transition: color 0.3s ease;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background-color: #667eea;
    transition: all 0.3s ease;
}

nav a:hover::after {
    width: 100%;
    left: 0;
}

/* Card hover effects */
.card {
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Progress bars */
.progress-bar {
    height: 8px;
    background-color: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
    transition: width 1s ease-in-out;
}

/* Responsive typography */
@media (max-width: 768px) {
    .text-responsive {
        font-size: 1.5rem;
    }
}

@media (max-width: 640px) {
    .text-responsive {
        font-size: 1.25rem;
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

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

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

::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #764ba2;
}

/* Form enhancements */
.form-input {
    transition: all 0.3s ease;
}

.form-input:focus {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.1);
}

/* Mobile menu animation */
.mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mobile-menu.active {
    max-height: 300px;
}

/* Skill bars animation */
.skill-bar {
    width: 0;
    transition: width 2s ease-in-out;
}

.skill-bar.animate {
    width: var(--skill-width);
}

/* Social icons hover effect */
.social-icon {
    transition: all 0.3s ease;
}

.social-icon:hover {
    transform: translateY(-3px) scale(1.1);
}

/* Portfolio filter buttons */
.filter-btn {
    transition: all 0.3s ease;
}

.filter-btn.active {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* Project cards */
.project-card {
    transition: all 0.3s ease;
    opacity: 1;
}

.project-card.hidden {
    opacity: 0;
    transform: scale(0.8);
}

/* Testimonial carousel */
.testimonial-slide {
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.5s ease;
}

.testimonial-slide.active {
    opacity: 1;
    transform: translateX(0);
}

/* Contact form validation */
.form-error {
    border-color: #ef4444;
    background-color: #fef2f2;
}

.form-success {
    border-color: #10b981;
    background-color: #f0fdf4;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .dark-mode {
        background-color: #1f2937;
        color: #f9fafb;
    }
    
    .dark-mode .bg-white {
        background-color: #374151;
    }
    
    .dark-mode .text-gray-800 {
        color: #f9fafb;
    }
    
    .dark-mode .text-gray-600 {
        color: #d1d5db;
    }
}

/* Print styles */
@media print {
    .no-print {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1, h2, h3 {
        page-break-after: avoid;
    }
}