@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;700&display=swap');

:root {
    /* Color Palette */
    --bg-color: #0B0B0B;
    --accent-color: #00FFC2;
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0A0;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Spacing */
    --section-padding: 100px 5%;
    --container-max-width: 1200px;
}

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

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

h1, h2, h3 {
    font-weight: 700;
}

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    width: 100%;
}

/* Navigation Layout */
.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 2px;
}

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.hamburger span {
    width: 100%;
    height: 2px;
    background-color: var(--accent-color);
    transition: all 0.3s ease;
}

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

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

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 180px; /* Increased to fix header overlap */
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.subheader {
    font-size: 0.75rem;
    letter-spacing: 3px;
    margin-bottom: 20px;
    font-weight: 700;
}

h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    line-height: 1.1;
    margin-bottom: 40px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 20px;
}

.hero-image {
    position: relative;
}

.image-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.image-container img {
    width: 100%;
    border-radius: 12px;
    filter: grayscale(100%) contrast(1.1);
    transition: 0.5s ease;
}

.image-container:hover img {
    filter: grayscale(0%);
}

.cert-tags {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.cert {
    padding: 10px 20px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
}

/* Stats Section */
.stats {
    background: #0F0F0F;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 60px 5%;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
    gap: 40px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: var(--text-secondary);
}

/* AI Stack Section */
.ai-stack h2 {
    font-size: 2.5rem;
    margin-bottom: 50px;
}

.stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

/* 5-item stack: 3 on top row, 2 centered on bottom */
.stack-grid-5 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
    .stack-grid-5 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .stack-grid-5 {
        grid-template-columns: 1fr;
    }
}


.stack-card {
    padding: 40px;
    transition: 0.4s ease;
}

.stack-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-10px);
}

.stack-card i {
    width: 48px;
    height: 48px;
    margin-bottom: 25px;
}

.stack-card h3 {
    margin-bottom: 15px;
}

.stack-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Career Narrative (Experience) */
.experience {
    background: #0B0B0B;
}

.narrative-layout {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 80px;
}

.narrative-header h2 {
    font-size: 4rem;
    line-height: 1;
    margin-bottom: 20px;
}

.timeline {
    border-left: 1px solid var(--border-color);
    padding-left: 40px;
}

.timeline-item {
    margin-bottom: 60px;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -44.5px;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
}

.date {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.company {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.timeline-item ul {
    margin-top: 15px;
    padding-left: 20px;
}

.timeline-item li {
    margin-bottom: 10px;
    color: var(--text-secondary);
    position: relative;
}

/* Expertise Grid */
.expertise {
    padding-top: 0;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 25px;
}

.dot {
    font-size: 0.6rem;
}

.skill-tag {
    display: inline-block;
    padding: 8px 16px;
    margin: 0 8px 12px 0;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.small {
    font-size: 0.7rem;
}

/* Featured Work (Projects) */
.projects h2 {
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.project-thumb {
    aspect-ratio: 16/10;
    overflow: hidden;
    margin-bottom: 25px;
    border-radius: 12px;
}

.project-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.6s ease;
    filter: grayscale(100%);
}

.project-card:hover .project-thumb img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.project-info h3 {
    margin: 10px 0;
    font-size: 1.5rem;
}

.project-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Contact Section */
.contact {
    padding: 100px 5% 150px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.large-name {
    font-size: clamp(3rem, 10vw, 8rem);
    letter-spacing: 5px;
    margin-bottom: 40px;
    opacity: 0.2;
}

.contact-details p {
    letter-spacing: 4px;
    font-weight: 500;
    margin-bottom: 25px;
}

.contact-links {
    font-size: 1.2rem;
    margin-bottom: 40px;
}

.separator {
    margin: 0 20px;
    opacity: 0.3;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 30px;
}



/* Responsive Design */
@media (max-width: 1024px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg-color);
        padding: 120px 5%;
        z-index: 999;
        text-align: center;
        gap: 40px;
        font-size: 1.5rem;
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .hero-grid, .narrative-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .stats-grid, .stack-grid, .projects-grid, .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline {
        padding-left: 20px;
    }

    #resume-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
}

@media (max-width: 768px) {
    .stats-grid, .stack-grid, .projects-grid, .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .large-name {
        font-size: 3rem;
    }

    #resume-btn {
        padding: 6px 12px;
        font-size: 0.7rem;
    }
    
    .logo {
        font-size: 1rem;
    }
    
    .hero {
        padding-top: 140px;
    }

    h1 {
        font-size: 3rem;
    }
}

.section {
    padding: var(--section-padding);
}

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

.btn {
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.3s ease;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
}

.btn-primary:hover {
    background: #00DDB0;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--text-primary);
    color: var(--bg-color);
    transform: translateY(-2px);
}

/* Glassmorphism Effect */
.glass {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

/* Scroll Animations */
[data-reveal] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-reveal].active {
    opacity: 1;
    transform: translateY(0);
}

/* Navigation Reveal Effect */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 5%;
    transition: transform 0.3s ease, background 0.3s ease;
}

header.hidden {
    transform: translateY(-100%);
}

header.scrolled {
    background: rgba(11, 11, 11, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}