:root {
    --bg-color: #0f172a;
    --text-color: #e2e8f0;
    --accent-color: #38bdf8;
    --secondary-color: #94a3b8;
    --card-bg: #1e293b;
    --card-border: #334155;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: all 0.3s ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;

    /* Sticky Magic */
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    /* border-bottom: 1px solid rgba(255, 255, 255, 0.05); */

    /* Compensation for container padding to ensure full-width look */
    margin: 0 -20px 3rem;
    width: calc(100% + 40px);
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-color);
}

.brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: #fff;
}

.brand span {
    font-size: 0.9rem;
    color: var(--secondary-color);
    display: block;
}

nav ul {
    display: flex;
    gap: 1.5rem;
}

nav a {
    font-weight: 500;
    color: var(--secondary-color);
}

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

/* Hero Section */
.hero {
    padding: 4rem 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-content .role {
    color: var(--accent-color);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: block;
}

.hero-content p {
    color: var(--secondary-color);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-image img {
    width: 100%;
    max-width: 400px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.hero-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: 50px;
    width: 100%;
    height: 100%;
    max-width: 400px;
    border: 2px solid var(--accent-color);
    border-radius: 20px;
    opacity: 0.3;
    z-index: 0;
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #0f172a;
}

.btn-primary:hover {
    background-color: #0ea5e9;
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid var(--secondary-color);
    margin-left: 1rem;
    color: var(--text-color);
}

.btn-outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Section Common */
section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin: 10px auto 0;
    border-radius: 2px;
}

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
    text-align: center;
}

.skill-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--card-border);
    transition: var(--transition);
}

.skill-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.skill-item i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    display: block;
}

.skill-name {
    font-weight: 500;
    color: var(--text-color);
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

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

.folder-icon {
    width: 40px;
    height: 40px;
    color: var(--accent-color);
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-links a {
    color: var(--secondary-color);
}

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

.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    color: var(--text-color);
}

.project-company {
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-desc {
    color: var(--secondary-color);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: auto;
}

.tag {
    font-size: 0.75rem;
    color: var(--accent-color);
    background: rgba(56, 189, 248, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
}

/* Experience */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--card-border);
}

.timeline-item {
    margin-left: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.45rem;
    top: 0.5rem;
    width: 1rem;
    height: 1rem;
    background: var(--accent-color);
    border-radius: 50%;
    border: 3px solid var(--bg-color);
}

.timeline-content {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--card-border);
}

.timeline-date {
    color: var(--accent-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    display: block;
}

.timeline-title {
    font-size: 1.25rem;
    margin: 0 0 0.5rem;
}

.timeline-company {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--secondary-color);
    border-top: 1px solid var(--card-border);
    margin-top: 4rem;
}

/* Mobile Navigation Control */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
    z-index: 1001;
    padding: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-image {
        order: -1;
    }

    .hero-image::before {
        display: none;
    }

    .hero-content p {
        margin: 0 auto 2rem;
    }

    .mobile-menu-btn {
        display: block;
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(15px);
        padding: 5rem 2rem;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-left: 1px solid var(--card-border);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    nav.active {
        right: 0;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 2.5rem;
    }

    nav a {
        font-size: 1.25rem;
    }
}

/* Obfuscation Styles */
.obfuscated {
    cursor: pointer;
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.obfuscated::after {
    content: 'Show';
    font-size: 0.7em;
    background: var(--card-border);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--secondary-color);
    transition: var(--transition);
}

.obfuscated:hover::after {
    background: var(--accent-color);
    color: #000;
}

.obfuscated.revealed::after {
    display: none;
}

/* Contact Grid & Social Buttons */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
    text-align: left;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--card-border);
}

.contact-info h4,
.social-links h4 {
    color: var(--text-color);
    margin-top: 0;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    border-bottom: 2px solid var(--accent-color);
    display: inline-block;
    padding-bottom: 5px;
}

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

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--secondary-color);
    transition: var(--transition);
    font-size: 0.9rem;
    font-weight: 500;
}

.social-btn svg {
    width: 20px;
    height: 20px;
}

.social-btn:hover {
    background: var(--accent-color);
    color: #0f172a;
    transform: translateY(-3px);
}

@media (max-width: 650px) {
    .contact-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .contact-info h4,
    .social-links h4 {
        border-bottom: none;
        display: block;
    }

    .social-buttons {
        justify-content: center;
    }
}