/* NexusWeb Custom Styles */

/* Base Styles */
* {
    transition: all 0.3s ease;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
}

/* Custom Colors */
:root {
    --primary: #2563eb;
    --secondary: #8b5cf6;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
}

/* Navigation Styles */
.nav-link {
    position: relative;
    color: var(--gray-700);
    text-decoration: none;
    padding: 0.5rem 0;
}

.nav-link:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

.nav-link:hover:after,
.nav-link.active:after {
    width: 100%;
}

.nav-link:hover {
    color: var(--primary);
}

/* Button Styles */
.btn-primary {
    background-color: var(--primary);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background-color: white;
    color: var(--primary);
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

/* Card Styles */
.card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.card-hover: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);
}

.service-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.service-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

/* Testimonial Styles */
.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

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

.hero-bg {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

/* Stats Counter */
.stats-counter {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

/* Portfolio Filter */
.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn.active {
    background-color: var(--primary);
    color: white;
}

.filter-btn:not(.active) {
    background-color: var(--gray-100);
    color: var(--gray-700);
}

.filter-btn:not(.active):hover {
    background-color: var(--gray-200);
}

/* Form Styles */
.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.5rem;
    font-size: 1rem;
    resize: vertical;
    min-height: 120px;
    transition: all 0.3s ease;
}

.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: white;
    z-index: 1000;
    padding: 2rem;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Responsive Design */
@media (max-width: 768px) {
    .stats-counter {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
}

/* 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: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background-color: #1d4ed8;
    transform: translateY(-2px);
}

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

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary), #1d4ed8);
}

.bg-gradient-secondary {
    background: linear-gradient(135deg, var(--secondary), #7c3aed);
}

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

.border-gradient {
    border: 2px solid transparent;
    background: linear-gradient(white, white) padding-box, 
                linear-gradient(135deg, var(--primary), var(--secondary)) border-box;
}