/* Global Styles */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --gradient-start: #667eea;
    --gradient-end: #764ba2;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-size: 1.5rem;
    color: #fff !important;
}

.navbar-nav .nav-link {
    margin: 0 10px;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
    width: 80%;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: white;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-image {
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Animations */
.animate-fade-in {
    animation: fadeIn 1s ease-in;
}

.animate-fade-in-delay {
    animation: fadeIn 1s ease-in 0.3s both;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 1s ease-in 0.6s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    margin: 0 auto 20px;
    border-radius: 2px;
}

.about-content {
    font-size: 1.1rem;
    font-weight: 400;
    color: #000000;
    margin-bottom: 20px;
    line-height: 1.6;
}

/* Cards */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 10px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

.icon-box {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.portfolio-card {
    transition: all 0.3s ease;
}

.portfolio-card:hover {
    transform: translateY(-10px);
}

.portfolio-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
}

/* Buttons */
.btn {
    border-radius: 50px;
    padding: 12px 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border: none;
}

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

.btn-outline-light:hover {
    background: white;
    color: var(--gradient-start);
    transform: translateY(-2px);
}

/* Form Styles */
.form-control {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Footer */
footer {
    margin-top: 50px;
}

footer a {
    font-size: 1.5rem;
    transition: transform 0.3s ease, color 0.3s ease;
}

footer a:hover {
    transform: translateY(-3px);
    color: var(--primary-color) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .display-3 {
        font-size: 2.5rem;
    }
    
    section {
        padding: 60px 0;
    }
}

@media (max-width: 576px) {
    .hero-section {
        text-align: center;
    }
    
    .btn-lg {
        padding: 10px 20px;
        font-size: 1rem;
    }
    
    .card-body {
        padding: 1.5rem !important;
    }
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
}

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.scroll-to-top.show {
    display: flex;
}

/* Loading Animation */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Contact Info Styles */
.contact-info-item {
    padding: 20px;
}

.contact-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    margin: 0 auto;
    transition: transform 0.3s ease;
}

@media (min-width: 768px) {
    .contact-icon {
        margin: 0;
    }
}

.contact-info-item:hover .contact-icon {
    transform: scale(1.1);
}

.contact-info-item h4 {
    color: var(--dark-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.contact-info-item p {
    color: var(--secondary-color);
    font-size: 1.1rem;
    line-height: 1.8;
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: var(--gradient-start);
    text-decoration: underline;
}