:root {
    --bg-color: #0a0a0a;
    --card-bg: #111111;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;

    /* Requested Blue & Purple Scheme */
    --accent-blue: #3B82F6;
    --accent-purple: #8B5CF6;
    --border-color: #222;
    --glass: rgba(255, 255, 255, 0.05);

    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-logo: 'Montserrat', sans-serif;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 15px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-family: var(--font-logo);
    font-weight: 700;
    font-size: 1.2rem;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    padding: 5px 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-blue);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent-purple);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: white;
    transition: all 0.3s ease-in-out;
}

/* Header */
header {
    min-height: 100vh;
    padding: 100px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    margin-top: 60px;
}

.chrome-logo {
    font-family: var(--font-logo);
    font-weight: 100;
    font-size: 3rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 20px;
    background: linear-gradient(to bottom, #cfd9df 0%, #e2ebf0 20%, #ffffff 50%, #a2b9c9 51%, #c6d5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0px 1px 2px rgba(255, 255, 255, 0.3), 0px 4px 10px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-family: var(--font-mono);
    color: var(--accent-blue);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.tagline {
    font-size: 1.5rem;
    max-width: 800px;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.tagline strong {
    color: var(--text-primary);
}

.cta-group {
    display: flex;
    gap: 20px;
    margin-top: 2rem;
}

.btn {
    padding: 12px 30px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(188, 19, 254, 0.5);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

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

/* Sections Global */
section {
    padding: 100px 0;
}

.section-dark {
    background-color: var(--card-bg);
}

.section-title {
    font-family: var(--font-mono);
    color: var(--accent-purple);
    font-size: 0.9rem;
    text-transform: uppercase;
    display: block;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(90deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 50px;
}

.bio p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.bio strong {
    color: var(--text-primary);
}

.stats-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 12px;
}

.stat-item {
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.stat-item:last-child {
    border-bottom: none;
}

.stat-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
}

.skill-category h3 {
    font-size: 1.2rem;
    color: #fff;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-category h3 i {
    color: var(--accent-purple);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tags span {
    background: var(--glass);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    transition: all 0.3s ease;
}

.tags span:hover {
    border-color: var(--accent-blue);
    color: white;
    transform: translateY(-2px);
}

/* Timeline */
.timeline {
    position: relative;
    border-left: 2px solid rgba(255, 255, 255, 0.1);
    margin-left: 20px;
}

.timeline-item {
    margin-bottom: 50px;
    padding-left: 40px;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 5px;
    width: 12px;
    height: 12px;
    background: var(--accent-purple);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-purple);
}

.role {
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
    margin-bottom: 5px;
}

.company {
    font-family: var(--font-mono);
    color: var(--accent-blue);
    display: block;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.description li {
    list-style: none;
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.description li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-purple);
    font-weight: bold;
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.post-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.post-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.post-tag {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-purple);
    margin-bottom: 10px;
    display: block;
}

.post-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #fff;
}

.post-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.read-link {
    font-size: 0.9rem;
    color: var(--accent-blue);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

/* Reading List (NEW) */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.book-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease;
}

.book-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
}

.book-cover {
    width: 100%;
    height: 250px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #222;
    color: #fff;
    font-weight: bold;
    font-family: 'Montserrat', sans-serif;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.book-title {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.book-author {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
footer {
    padding: 80px 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-top: 50px;
}

.footer-links {
    margin: 30px 0;
    display: flex;
    justify-content: center;
    gap: 30px;
}

.footer-links a {
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: color 0.3s;
}

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.visible {
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Reading Progress Bar */
#reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    z-index: 9999;
    transition: width 0.1s ease;
}

/* Reset Scroll Smooth */
html {
    scroll-behavior: smooth;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 60px;
        gap: 0;
        flex-direction: column;
        background-color: var(--bg-color);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 20px;
    }

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

    .nav-links a {
        padding: 15px 0;
        display: block;
        width: 100%;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .chrome-logo {
        font-size: 2rem;
    }

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

    .cta-group {
        flex-direction: column;
    }
}