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

:root {
    --primary-black: #010101;
    --primary-blue: #2563eb;
    --primary-white: #ffffff;
    --primary-orange: #ff6b35;
    --bg-dark: #0a0a0a;
    --bg-card: #1a1a1a;
    --text-gray: #a0a0a0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--primary-black);
    color: var(--primary-white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Hide scrollbars but keep functionality */
* {
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none;  /* IE and Edge */
}

*::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

a {
    color: inherit;
    text-decoration: none;
}

/* Header & Navigation */
.primary-header {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: rgba(1, 1, 1, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 107, 53, 0.2);
    z-index: 1000;
    transition: all 0.3s ease;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.primary-navigation {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    position: relative;
    font-size: 1rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-orange);
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: var(--primary-orange);
}

.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
}

.hamburger {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--primary-white);
    position: relative;
    transition: all 0.3s ease;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 28px;
    height: 3px;
    background: var(--primary-white);
    transition: all 0.3s ease;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 5% 4rem;
    background: linear-gradient(135deg, var(--primary-black) 0%, #0a1628 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 4rem;
    max-width: 1200px;
    width: 100%;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-white) 0%, var(--primary-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--primary-orange);
    margin-bottom: 2rem;
}

.cta-btn {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--primary-orange);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.6);
}

.hero-image {
    flex: 0 0 400px;
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 3px solid var(--primary-orange);
}

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

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

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

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

/* About Section */
.about-section {
    padding: 6rem 5%;
    background: var(--bg-dark);
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
}

.about-content h2,
.expertise-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-orange);
    position: relative;
    padding-bottom: 1rem;
}

.about-content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--primary-blue);
}

.about-content p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.resume-btn {
    padding: 0.8rem 2rem;
    font-size: 1rem;
    background: var(--primary-blue);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.resume-btn:hover {
    background: var(--primary-orange);
    transform: translateX(5px);
}

/* Expertise Scroll Section */
/* Expertise Scroll Section */
.expertise-scroll {
    max-height: 500px;
    overflow: hidden; /* important */
    position: relative;
}

/* Animated track */
.expertise-track {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    animation: verticalScroll 20s ease-in-out infinite;
}

/* Pause animation on hover */
.expertise-scroll:hover .expertise-track {
    animation-play-state: paused;
}

/* Expertise card */
.expertise-item {
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 10px;
    border-left: 3px solid var(--primary-blue);
    transition: all 0.3s ease;
    min-height: 150px;
}

.expertise-item:hover {
    transform: translateX(10px);
    border-left-color: var(--primary-orange);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

.expertise-item i {
    font-size: 1.2rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.expertise-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-white);
}

.expertise-item p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* Keyframes */
@keyframes verticalScroll {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-50%);
    }
    100% {
        transform: translateY(0);
    }
}


/* Technologies Section - Horizontal Auto Scroll */
.technologies-section {
    padding: 4rem 0;
    background: var(--primary-black);
    overflow: hidden;
}

.technologies-section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-orange);
}

.tech-scroll-container {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.tech-scroll {
    display: flex;
    gap: 2rem;
    animation: scroll 30s linear infinite;
    width: max-content;
}

.tech-scroll:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-width: 150px;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

.tech-item:hover {
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

.tech-item i {
    font-size: 2.5rem;
    color: var(--primary-blue);
}

.tech-item span {
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
}

/* Projects Section */
.projects-section {
    padding: 6rem 5%;
    background: var(--bg-dark);
}

.projects-section h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-orange);
}

.project-tabs {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
}

.tab-btn {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    background: transparent;
    border: 2px solid var(--primary-blue);
    border-radius: 50px;
    color: var(--primary-white);
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: var(--primary-blue);
}

.tab-btn:hover {
    background: var(--primary-orange);
    border-color: var(--primary-orange);
}

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

.project-grid {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    animation: fadeIn 0.5s ease-in;
}

.project-grid.active-tab {
    display: grid;
}

.project-card {
    background: var(--bg-card);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-orange);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-white);
}

.project-info p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tag {
    padding: 0.3rem 0.8rem;
    background: rgba(37, 99, 235, 0.2);
    border: 1px solid var(--primary-blue);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--primary-blue);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-orange);
    font-weight: 600;
    transition: gap 0.3s ease;
}

.project-link:hover {
    gap: 1rem;
}

.github-note {
    max-width: 800px;
    margin: 3rem auto 0;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 10px;
    border-left: 4px solid var(--primary-orange);
    text-align: center;
}

.github-note a {
    color: var(--primary-blue);
    text-decoration: underline;
}

/* Blog Section */
.blog-section {
    padding: 6rem 5%;
    background: var(--primary-black);
}

.blog-section h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-orange);
}

.blog-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: var(--bg-card);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.blog-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-blue);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.blog-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.blog-card:hover .blog-image img {
    transform: scale(1.1);
}

.blog-info {
    padding: 1.5rem;
}

.blog-info h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.blog-info p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.blog-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-blue);
    font-weight: 600;
    transition: gap 0.3s ease;
}

.blog-link:hover {
    gap: 1rem;
}

/* Contact Section */
.contact-section {
    padding: 6rem 5%;
    background: var(--bg-dark);
}

.contact-section h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-orange);
}

.contact-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
    border-left: 4px solid var(--primary-orange);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-blue);
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.contact-item p {
    color: var(--text-gray);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border: 2px solid transparent;
    border-radius: 10px;
    color: var(--primary-white);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.submit-btn {
    padding: 1rem 2rem;
    background: var(--primary-orange);
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: var(--primary-blue);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.4);
}

/* Footer */
.footer {
    padding: 3rem 5%;
    background: var(--primary-black);
    text-align: center;
    border-top: 1px solid rgba(255, 107, 53, 0.2);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.social-links a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: var(--bg-card);
    border-radius: 50px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-blue);
    transform: translateY(-3px);
}

.footer p {
    color: var(--text-gray);
    margin-top: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
        z-index: 9999;
    }

    .primary-navigation {
        position: fixed;
        inset: 0 0 0 30%;
        flex-direction: column;
        padding: 8rem 2rem;
        background: rgba(1, 1, 1, 0.98);
        backdrop-filter: blur(10px);
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

    .primary-navigation[data-visible="true"] {
        transform: translateX(0);
    }

    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
    }

    .hero-image {
        display: none;
        flex: 0 0 300px;
    }

    .hero-image img {
        display: none;
        height: 400px;
    }

    .about-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .expertise-scroll {
        max-height: 400px;
    }

    .tech-scroll {
        animation: scroll 20s linear infinite;
    }

    .project-tabs {
        flex-direction: column;
        align-items: center;
    }

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

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

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

    .social-links {
        flex-direction: column;
        align-items: center;
    }
}