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

:root {
    --primary-color: #f8f9fa;
    --secondary-color: #e9ecef;
    --accent-color: #2c5aa0;
    --accent-light: #4a7bc8;
    --text-color: #2c3e50;
    --text-muted: #6c757d;
    --dark-blue: #1e3a5f;
    --light-gray: #f1f3f5;
    --border-color: #dee2e6;
    --spacing-xs: 0.35rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1.25rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #ffffff;
    overflow-x: hidden;
    font-size: 15px;
}


/* Top Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #ffffff;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--border-color);
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 65px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.brand-image {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
}

.brand-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.brand-initial {
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
}

.brand-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    white-space: nowrap;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    position: relative;
    padding: 0.4rem 0;
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color);
}

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

.navbar-social {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.social-link {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.social-link:hover {
    background-color: var(--accent-color);
    color: #ffffff;
    transform: translateY(-3px);
}

.mobile-menu-toggle {
    display: none;
    cursor: pointer;
    color: var(--text-color);
    font-size: 1.5rem;
}

/* Main Content */
.main-content {
    min-height: 100vh;
    padding-top: 65px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Hero Section */
.hero-section {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, var(--light-gray) 0%, #ffffff 50%, var(--secondary-color) 100%);
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-name {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
    letter-spacing: -1px;
    animation: fadeInUp 1s ease;
}

.hero-tagline {
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    color: var(--text-muted);
    font-weight: 300;
    animation: fadeInUp 1s ease 0.2s both;
}

.tagline-prefix {
    color: var(--text-muted);
}

.typewriter {
    color: var(--accent-color);
    font-weight: 500;
}

.cursor {
    color: var(--accent-color);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator a {
    color: var(--accent-color);
    font-size: 2rem;
    text-decoration: none;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Section Styles */
.section {
    padding: var(--spacing-xl) 0;
    min-height: auto;
    display: flex;
    align-items: center;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.title-underline {
    width: 50px;
    height: 3px;
    background: var(--accent-color);
    margin: 0 auto;
    border-radius: 2px;
}

/* About Section */
.about-section {
    background-color: #ffffff;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-image-wrapper {
    display: flex;
    justify-content: center;
}

.about-image {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--accent-color);
    box-shadow: 0 0 30px rgba(44, 90, 160, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-initial {
    font-size: 4.5rem;
    font-weight: 700;
    color: #ffffff;
}

.about-content {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-muted);
}

.about-content p {
    margin-bottom: var(--spacing-md);
}

.about-content strong {
    color: var(--text-color);
    font-size: 1.1rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.cv-download {
    margin-top: var(--spacing-lg);
}

.cv-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 3px 12px rgba(44, 90, 160, 0.25);
}

.cv-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(44, 90, 160, 0.4);
    background: linear-gradient(135deg, var(--dark-blue), var(--accent-color));
}

.cv-button i {
    font-size: 1rem;
}

.companies-section {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.companies-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.companies-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.company-logo-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    background: var(--secondary-color);
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    min-width: 100px;
    height: 65px;
}

.company-logo-wrapper:hover {
    background: #ffffff;
    border-color: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(44, 90, 160, 0.15);
}

.company-logo {
    max-width: 85px;
    max-height: 42px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(100%) opacity(0.6);
    transition: filter 0.3s ease;
}

.company-logo-wrapper:hover .company-logo {
    filter: grayscale(0%) opacity(1);
}

/* Projects Section */
.projects-section {
    background-color: var(--light-gray);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background-color: #ffffff;
    border-radius: 8px;
    padding: var(--spacing-md);
    transition: all 0.4s ease;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-light));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(44, 90, 160, 0.15);
    border-color: var(--accent-color);
}

.project-title {
    font-size: 1.3rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.project-description {
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
    font-size: 0.95rem;
}

.project-technologies {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tech-tag {
    background: rgba(44, 90, 160, 0.08);
    color: var(--accent-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(44, 90, 160, 0.15);
}

.project-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.project-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.project-link:hover {
    color: var(--dark-blue);
    transform: translateX(5px);
}

/* Skills Section */
.skills-section {
    background-color: #ffffff;
}

.skills-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.skill-category {
    background-color: var(--light-gray);
    border-radius: 8px;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.skill-category:hover {
    border-color: var(--accent-color);
    transform: translateX(10px);
    box-shadow: 0 4px 12px rgba(44, 90, 160, 0.1);
}

.skill-category-name {
    font-size: 1.15rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.skill-category-name::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--accent-color);
    border-radius: 2px;
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-item {
    background: rgba(44, 90, 160, 0.08);
    color: var(--dark-blue);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(44, 90, 160, 0.15);
    transition: all 0.3s ease;
}

.skill-item:hover {
    background: var(--accent-color);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 2px 8px rgba(44, 90, 160, 0.2);
}

/* Education Section */
.education-section {
    background-color: var(--light-gray);
}

.education-timeline {
    position: relative;
    padding-left: 40px;
}

.education-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-color);
}

.education-item {
    background-color: #ffffff;
    border-radius: 8px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    position: relative;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.education-item::before {
    content: '';
    position: absolute;
    left: -50px;
    top: 25px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-color);
    border: 3px solid var(--light-gray);
}

.education-item:hover {
    border-color: var(--accent-color);
    transform: translateX(10px);
    box-shadow: 0 4px 12px rgba(44, 90, 160, 0.1);
}

.education-degree {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.education-institution {
    font-size: 1rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.education-details {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.education-description {
    color: var(--text-muted);
    line-height: 1.6;
    margin-top: var(--spacing-sm);
    font-size: 0.95rem;
}

/* Hobbies Section */
.hobbies-section {
    background-color: #ffffff;
}

.hobbies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.hobby-item {
    background-color: var(--light-gray);
    border-radius: 8px;
    padding: var(--spacing-md);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.hobby-item:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 8px 20px rgba(44, 90, 160, 0.15);
    background-color: #ffffff;
}

.hobby-name {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.hobby-description {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Contact Section */
.contact-section {
    background-color: var(--light-gray);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(44, 90, 160, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
    transition: all 0.3s ease;
}

.contact-item:hover .contact-icon {
    background: var(--accent-color);
    color: #ffffff;
    transform: scale(1.1);
}

.contact-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.contact-value {
    font-size: 1rem;
    color: var(--text-color);
    font-weight: 500;
}

.contact-value a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-value a:hover {
    color: var(--accent-color);
}

.contact-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.contact-social .social-link {
    width: 42px;
    height: 42px;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background-color: var(--dark-blue);
    text-align: center;
    padding: var(--spacing-md);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-image {
        width: 200px;
        height: 200px;
    }
    
    .navbar-menu {
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .navbar-container {
        padding: 0 var(--spacing-md);
    }

    .navbar-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: #ffffff;
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-md) 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        border-bottom: 1px solid var(--border-color);
    }

    .navbar-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        padding: var(--spacing-md) var(--spacing-lg);
        width: 100%;
    }

    .navbar-social {
        display: none;
    }

    .hero-section {
        min-height: 70vh;
    }

    .hero-tagline {
        font-size: 1.2rem;
    }

    .section {
        padding: var(--spacing-lg) 0;
        min-height: auto;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-image {
        width: 200px;
        height: 200px;
    }

    .about-initial {
        font-size: 4rem;
    }

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

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

    .education-timeline {
        padding-left: 30px;
    }

    .education-item::before {
        left: -40px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-name {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.8rem;
    }
}