:root {
    --primary: #0a192f;
    --light-navy: #112240;
    --lightest-navy: #233554;
    --slate: #8892b0;
    --light-slate: #a8b2d1;
    --white: #e6f1ff;
    --green: #64ffda;
    --green-tint: rgba(100, 255, 218, 0.1);
    
    --font-mono: 'IBM Plex Mono', monospace;
    --font-sans: 'Orbitron', sans-serif;
    
    --transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--primary);
    color: var(--slate);
    font-family: var(--font-mono);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Canvas Background */
#circuitCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.4;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: 80px;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    align-items: center;
    box-shadow: 0 10px 30px -10px rgba(2, 12, 27, 0.7);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    color: var(--green);
    font-family: var(--font-sans);
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--light-slate);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}

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

.mobile-toggle {
    display: none;
    color: var(--green);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Layout */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 100px 0;
    min-height: 100vh; /* Ensure sections have breathing room */
}

/* Typography Utilities */
.section-title {
    display: flex;
    align-items: center;
    font-family: var(--font-sans);
    font-size: clamp(26px, 5vw, 32px);
    color: var(--white);
    margin-bottom: 40px;
}

.section-title::before {
    content: '>';
    color: var(--green);
    margin-right: 10px;
    font-family: var(--font-mono);
}

.section-title::after {
    content: '';
    display: block;
    width: 300px;
    height: 1px;
    background: var(--lightest-navy);
    margin-left: 20px;
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    min-height: 100vh;
}

.hero-subtitle {
    color: var(--green);
    font-family: var(--font-mono);
    margin-bottom: 20px;
}

.hero h1 {
    font-size: clamp(40px, 8vw, 70px);
    font-family: var(--font-sans);
    font-weight: 900;
    color: var(--white);
    line-height: 1.1;
}

.hero h2 {
    font-size: clamp(30px, 6vw, 50px);
    font-family: var(--font-sans);
    color: var(--slate);
    line-height: 1.1;
    margin-bottom: 20px;
    height: 1.2em; /* Prevents layout shift when typing */
}

.hero p {
    max-width: 540px;
    margin-bottom: 50px;
    font-size: 1.1rem;
}

.cta-button {
    color: var(--green);
    background: transparent;
    border: 1px solid var(--green);
    border-radius: 4px;
    padding: 1.25rem 1.75rem;
    text-decoration: none;
    transition: var(--transition);
}

.cta-button:hover {
    background: var(--green-tint);
}

/* About & Skills */
.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 50px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 20px;
}

.skill-item {
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-item i {
    color: var(--green);
}

/* Experience */
.experience-item {
    background: var(--light-navy);
    padding: 2rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    border-left: 3px solid var(--green);
    transition: var(--transition);
}

.experience-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
}

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

.experience-title {
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 600;
}

.experience-company {
    color: var(--green);
}

.experience-tags {
    margin-top: 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    font-size: 12px;
    background: var(--lightest-navy);
    padding: 5px 10px;
    border-radius: 15px;
    color: var(--green);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
}

.project-card {
    background: var(--light-navy);
    padding: 2rem;
    border-radius: 4px;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    top: 0;
}

.project-card:hover {
    top: -10px;
    box-shadow: 0 20px 30px -15px rgba(2, 12, 27, 0.7);
}

.project-card:hover .project-title {
    color: var(--green);
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.project-icon {
    color: var(--green);
    font-size: 40px;
}

.project-links a {
    color: var(--light-slate);
    margin-left: 10px;
    font-size: 20px;
    transition: var(--transition);
}

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

.project-title {
    color: var(--white);
    font-size: 1.4rem;
    margin-bottom: 10px;
    transition: var(--transition);
}

.card-tags {
    margin-top: 20px;
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: var(--slate);
}

/* Contact */
.center-text {
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.contact-desc {
    max-width: 500px;
    margin-bottom: 3rem;
}

/* Footer & Social */
.social-sidebar {
    position: fixed;
    bottom: 0;
    left: 40px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
}

.social-sidebar a {
    color: var(--light-slate);
    font-size: 20px;
    transition: var(--transition);
}

.social-sidebar a:hover {
    color: var(--green);
    transform: translateY(-3px);
}

.social-line {
    width: 1px;
    height: 90px;
    background: var(--light-slate);
}

footer {
    text-align: center;
    padding: 20px;
    font-size: 12px;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Response */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Hide links by default on mobile */
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--light-navy);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
    }

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

    .mobile-toggle {
        display: block;
    }

    .about-content {
        grid-template-columns: 1fr;
    }
    
    .social-sidebar {
        display: none; /* Hide side social bar on mobile */
    }

    .section-title::after {
        width: 100px;
    }
}