/* CSS Variables */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --white: #ffffff;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color) !important;
    text-decoration: none;
}

.navbar-nav .nav-link {
    color: var(--text-dark) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
    text-decoration: none;
}

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

/* Hero Section */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    display: flex;
    align-items: center;
    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 xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero-content h2 {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-section .social-links a {
    color: white;
    font-size: 2rem;
    margin: 0 1rem;
    transition: color 0.3s ease, transform 0.3s ease;
    text-decoration: none;
    display: inline-block;
    position: relative;
    z-index: 10;
}

.hero-section .social-links a:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
}

.btn-hero {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    display: inline-block;
    margin-right: 1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary-custom {
    background: var(--accent-color);
    color: white;
}

.btn-primary-custom:hover {
    background: #d97706;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(245, 158, 11, 0.3);
}

.btn-outline-custom {
    background: transparent;
    color: white;
    border-color: white;
}

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

/* Hero Image Styles */
.hero-image img {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-image img:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
}

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
}

.skill-category h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--bg-light);
    color: var(--text-dark);
}

.skill-list li:last-child {
    border-bottom: none;
}

.skill-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.skill-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Experience Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-color);
}

.timeline-item {
    position: relative;
    padding-left: 40px;
    margin-bottom: 3rem;
    margin-left: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 4px solid white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.timeline-content {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    margin-left: 0;
}

.timeline-content:hover {
    transform: translateY(-5px);
}

.timeline-date {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.timeline-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0.5rem 0;
}

.timeline-company {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.timeline-location {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Contact */
.contact-section {
    background: linear-gradient(135deg, var(--bg-light) 0%, white 100%);
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Footer */
footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    margin: 0 1rem;
    transition: color 0.3s ease;
    text-decoration: none;
}

.social-links a:hover {
    color: var(--accent-color);
}

/* Profile picture styles for individual pages */
.section img.rounded-circle,
.profile-img {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    max-width: 150px;
    height: auto;
    border: 3px solid var(--primary-color);
}

.section img.rounded-circle:hover,
.profile-img:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 30px rgba(37, 99, 235, 0.3);
}

/* Hero profile image */
.hero-profile-img {
    max-width: 350px;
    border: 5px solid rgba(255, 255, 255, 0.2);
}

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

.animate-in {
    animation: fadeInUp 0.6s ease both;
}

/* Privacy Policy Styles */
.privacy-content {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-top: 2rem;
}

.privacy-section {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--bg-light);
}

.privacy-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.privacy-section h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.privacy-section h3 {
    color: var(--text-dark);
    font-size: 1.2rem;
    font-weight: 500;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.privacy-section ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.privacy-section li {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.privacy-section strong {
    color: var(--text-dark);
}

.privacy-section a {
    color: var(--primary-color);
    text-decoration: none;
}

.privacy-section a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
    
    .timeline-item::before {
        left: 12px;
    }
    
    .timeline-content {
        width: calc(100% - 60px);
        margin-left: 60px !important;
    }
    
    .btn-hero {
        display: block;
        margin-bottom: 1rem;
        margin-right: 0;
    }
    
    .hero-image img {
        max-width: 250px !important;
        margin-top: 2rem;
    }
}