/* Professional Portfolio - Side Navigation Design */
/* Muhammad Bilal - iOS Developer */

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #10b981;
    --dark: #0f172a;
    --dark-secondary: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --gray-light: #e2e8f0;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--light);
}

/* Side Navigation */
.sidenav {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 280px;
    background: var(--dark);
    color: var(--white);
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

.nav-header h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
    line-height: 1.2;
}

.nav-subtitle {
    color: var(--gray-light);
    font-size: 14px;
    margin-bottom: 40px;
}

.nav-links {
    list-style: none;
    flex-grow: 1;
}

.nav-link {
    display: block;
    padding: 12px 16px;
    color: var(--gray-light);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 8px;
    transition: var(--transition);
    font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
    background: var(--dark-secondary);
    color: var(--white);
}

.nav-footer {
    border-top: 1px solid var(--dark-secondary);
    padding-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: stretch;
}

.nav-footer-social {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-light);
    background: var(--dark-secondary);
    border-radius: 8px;
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-download {
    flex: 1;
    padding: 10px 16px;
    background: var(--primary);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-download:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* Hire Me Button */
.btn-hire-me {
    flex: 1;
    padding: 10px 16px;
    background: var(--secondary);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-hire-me:hover {
    background: #0d9488;
    transform: translateY(-1px);
}

/* Main Content */
.main-content {
    margin-left: 280px;
    padding: 60px 80px;
    max-width: 1400px;
}

/* Hero Section */
.hero-section {
    padding: 40px 0 60px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--secondary);
    color: var(--white);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--dark);
}

.highlight {
    color: var(--primary);
}

.hero-lead {
    font-size: 20px;
    color: var(--gray);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 600px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 14px;
    color: var(--gray);
}

/* About Section */
.about-section {
    padding: 40px 0;
    border-bottom: 1px solid var(--gray-light);
}

.about-text {
    font-size: 18px;
    line-height: 1.8;
    color: var(--gray);
    margin-bottom: 20px;
    max-width: 800px;
}

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

/* Sections */
.section {
    padding: 60px 0;
    border-bottom: 1px solid var(--gray-light);
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 40px;
    color: var(--dark);
}

/* Timeline */
.timeline {
    position: relative;
}

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

.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 20px;
    width: 2px;
    height: calc(100% + 20px);
    background: var(--gray-light);
}

.timeline-item:last-child::after {
    display: none;
}

.timeline-date {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.timeline-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.timeline-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray);
    margin-bottom: 4px;
}

.location {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 12px;
}

.timeline-content ul {
    list-style: none;
    margin-top: 12px;
}

.timeline-content li {
    padding-left: 24px;
    margin-bottom: 8px;
    position: relative;
    color: var(--gray);
}

.timeline-content li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.career-progression {
    background: rgba(37, 99, 235, 0.05);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 12px;
    font-size: 15px;
    color: var(--text-primary);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--white);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--gray-light);
    transition: var(--transition);
    position: relative;
}

.project-card.featured {
    border: 2px solid var(--primary);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02) 0%, rgba(255, 255, 255, 1) 100%);
}

.project-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: var(--secondary);
    color: var(--white);
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-card:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.1);
    transform: translateY(-2px);
}

.project-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.project-card p {
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.6;
}

.project-tech {
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 12px;
}

.project-link {
    display: inline-block;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
}

.project-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Skills Section */
.skills-section {
    background: var(--white);
    margin: 60px -80px;
    padding: 60px 80px;
}

.skills-compact {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.skill-group h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.skill-group p {
    color: var(--gray);
    line-height: 1.8;
}

/* Education */
.education-card {
    background: var(--white);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--gray-light);
}

.education-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.education-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.edu-date {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 12px;
}

.education-card p {
    color: var(--gray);
}

/* Contact */
.contact-section {
    border-bottom: none;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--white);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--gray-light);
}

.contact-icon {
    font-size: 28px;
}

.contact-label {
    font-size: 12px;
    color: var(--gray);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.contact-item a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item span {
    color: var(--dark);
    font-weight: 600;
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    color: var(--gray);
}

.footer p {
    margin-bottom: 8px;
}

.footer-note {
    font-size: 12px;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Responsive */
@media (max-width: 1024px) {
    .main-content {
        padding: 40px 60px;
    }

    .hero-title {
        font-size: 48px;
    }

    .projects-grid,
    .skills-compact {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidenav {
        width: 100%;
        position: relative;
        padding: 30px 20px;
    }

    .main-content {
        margin-left: 0;
        padding: 30px 20px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .skills-section {
        margin: 40px -20px;
        padding: 40px 20px;
    }
}

/* Print Styles */
@media print {
    .sidenav {
        position: relative;
        width: 100%;
        padding: 20px;
    }

    .main-content {
        margin-left: 0;
    }

    .nav-footer,
    .hero-badge {
        display: none;
    }
}