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

:root {
    /* Colors */
    --bg-primary: #0f0f0f;
    --bg-secondary: #0f0f0f;
    --bg-card: #0a0a0a;
    --text-primary: #e6edf3;
    --text-secondary: #919aa4;
    
    /* Primary Accent - Orange */
    --accent-primary: #ff6b35;
    --accent-primary-hover: #ff5722;
    
    /* Secondary Accent - White/Gray */
    --accent-secondary: #ffffff;
    
    /* Tertiary Accent - Gray */
    --accent-tertiary: #a0a0a0;
    
    --border-color: #1a1a1a;
    --shadow: rgba(255, 107, 53, 0.1);
    --shadow-lg: rgba(255, 107, 53, 0.2);
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}


/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 2px 10px var(--shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: underline;
    text-decoration-color: transparent;
    text-underline-offset: 5px;
    font-weight: 500;
    transition: var(--transition);
}

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

.menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
    border-radius: 3px;
}


/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--spacing-lg) var(--spacing-md);
    background: var(--bg-primary);
}

.hero-content {
    max-width: 800px;
    text-align: center;
}

.greeting {
    font-size: 1.2rem;
    color: var(--text-secondary);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

.name-text {
    color: var(--accent-primary);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--text-primary);
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--text-primary);
    font-weight: 600;
}

.btn-secondary:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
}

.scroll-indicator:hover {
    color: var(--accent-primary);
}

.scroll-line {
    width: 2px;
    height: 30px;
    background: var(--accent-primary);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background: var(--text-primary);
    animation: scrollDown 1.5s infinite;
}

@keyframes scrollDown {
    0% {
        top: -30%;
    }
    100% {
        top: 100%;
    }
}

/* Section Styles */
.section {
    padding: var(--spacing-xl) var(--spacing-md);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    margin: 1rem auto;
    border-radius: 2px;
}

/* Section-specific title colors - Alternating orange and white */
.about .section-title::after { background: var(--accent-primary); }
.skills .section-title::after { background: var(--accent-secondary); }
#experience .section-title::after { background: var(--accent-primary); }
.projects .section-title::after { background: var(--accent-secondary); }
#education .section-title::after { background: var(--accent-primary); }
.certifications .section-title::after { background: var(--accent-secondary); }
.contact .section-title::after { background: var(--accent-primary); }

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

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

.profile-photo {
    width: 100%;
    max-width: 350px;
    aspect-ratio: 1;
    margin: 0 auto;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--accent-primary);
    box-shadow: 0 8px 32px rgba(255, 107, 53, 0.3);
    transition: var(--transition);
}


.profile-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Projects Section */
.projects {
    background: var(--bg-primary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition), opacity 0.4s ease-out, transform 0.4s ease-out;
    border-left: 3px solid var(--accent-tertiary);
    display: flex;
    flex-direction: column;
    height: 100%;
    opacity: 0;
    transform: scale(0.95) translateY(20px);
}

.project-card.visible {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.project-card:hover {
    box-shadow: 0 8px 24px var(--shadow-lg);
}

.project-info {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-category {
    color: var(--accent-tertiary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-title {
    font-size: 1.5rem;
    margin: 0.5rem 0;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--bg-primary);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}


.project-buttons {
    display: flex;
    gap: 0.75rem;
    margin-top: auto;
    padding-top: 1rem;
}

.project-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-live,
.btn-github {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}


/* Skills Section */
.skills {
    background: var(--bg-primary);
}

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

.skill-category {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.skill-category:hover {
    box-shadow: 0 8px 24px var(--shadow-lg);
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

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

.skill-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.skill-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-size: 1.2rem;
}

/* Experience Section */
#experience {
    background: var(--bg-secondary);
}

.experience-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.experience-item {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: 12px;
    border-left: 3px solid var(--accent-primary);
    transition: var(--transition);
}

.experience-item:hover {
    box-shadow: 0 8px 24px var(--shadow-lg);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 1rem;
}

.experience-title {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.experience-company {
    color: var(--accent-secondary);
    font-weight: 600;
}

.experience-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    white-space: nowrap;
}

.experience-details {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.experience-details li {
    color: var(--text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.experience-details li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-secondary);
    font-size: 1.2rem;
}

/* Education Section */
#education {
    background: var(--bg-secondary);
}

.education-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.education-item {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: 12px;
    border-left: 3px solid var(--accent-primary);
    transition: var(--transition);
}

.education-item:hover {
    box-shadow: 0 8px 24px var(--shadow-lg);
}

.education-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    gap: 1rem;
}

.education-degree {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.education-school {
    color: var(--accent-primary);
    font-weight: 600;
}

.education-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    white-space: nowrap;
}

.education-details {
    color: var(--text-secondary);
}

/* Certifications Section */
.certifications {
    background: var(--bg-primary);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

@media (max-width: 768px) {
    .certifications-grid {
        grid-template-columns: 1fr;
    }
}

.cert-card {
    background: var(--bg-card);
    padding: var(--spacing-md);
    padding-right: 3.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--accent-secondary);
    transition: var(--transition), opacity 0.4s ease-out, transform 0.4s ease-out;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    position: relative;
    height: 100%;
    opacity: 0;
    transform: translateY(20px);
}

.cert-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.cert-card:hover {
    box-shadow: 0 8px 24px var(--shadow-lg);
}

.cert-title {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.cert-issuer {
    color: var(--accent-secondary);
    font-weight: 600;
    margin-top: auto;
}

.cert-link-icon {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    color: var(--text-secondary);
    transition: var(--transition);
    flex-shrink: 0;
}

.cert-card:hover .cert-link-icon {
    color: var(--text-primary);
}

/* Contact Section */
.contact {
    background: var(--bg-secondary);
}

.contact-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin: var(--spacing-lg) auto;
    max-width: 1000px;
}

.contact-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
}

.contact-link:hover {
    border-color: var(--accent-primary);
}

.contact-link svg {
    flex-shrink: 0;
    color: var(--accent-primary);
}

.contact-link span {
    color: var(--text-secondary);
    font-size: 0.95rem;
    white-space: nowrap;
}

.contact-link.social {
    padding: 0.875rem;
}

/* Footer */
.footer {
    background: var(--bg-primary);
    padding: var(--spacing-md);
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}


/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px var(--shadow);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .menu-btn {
        display: flex;
    }

    .menu-btn.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-btn.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

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

    .contact-wrapper {
        gap: 1rem;
    }
    
    .contact-row {
        gap: 1rem;
    }
    
    .contact-link {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .contact-link span {
        font-size: 0.85rem;
    }
    
    .contact-link.social {
        padding: 0.75rem;
    }

    .hero {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

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