/* ===== CSS VARIABLES ===== */
:root {
    --primary-color: #1a1a1a;
    --secondary-color: #f8f9fa;
    --accent-color: #90B494;
    --accent-secondary: #718F94;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #6b7280;
    --text-dark: #1a1a1a;
    --border-color: #333333;
    --card-bg: #ffffff;
    --gradient-primary: linear-gradient(135deg, #90B494 0%, #718F94 100%);
    --font-primary: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 40px rgba(144, 180, 148, 0.1);
    --border-radius: 12px;
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background: var(--primary-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    font-weight: 400;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== CLEAN BACKGROUND ===== */
.geometric-bg {
    display: none;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

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

.nav-logo .logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    gap: 3rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 8rem 0 4rem;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

.hero-content {
    max-width: 800px;
}

.hero-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.label-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-name {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 0.9;
    margin-bottom: 2rem;
    letter-spacing: -2px;
}

.name-outline {
    display: block;
    color: transparent;
    -webkit-text-stroke: 2px var(--text-primary);
}

.name-solid {
    display: block;
    color: var(--accent-color);
}

.hero-subtitle {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.subtitle-line {
    width: 60px;
    height: 2px;
    background: var(--accent-color);
}

.hero-subtitle p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-description {
    max-width: 600px;
    margin-bottom: 3rem;
}

.hero-description p {
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 2rem;
    margin-bottom: 4rem;
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-family: inherit;
}

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

.btn-primary:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.scroll-line {
    width: 40px;
    height: 1px;
    background: var(--text-secondary);
}

/* ===== SECTIONS ===== */
section {
    padding: 8rem 0;
    position: relative;
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: 2rem;
    margin-bottom: 4rem;
}

.section-number {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-muted);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -1px;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--secondary-color);
}

.about .section-title {
    color: var(--text-dark);
}

.about .section-number {
    color: var(--text-muted);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

/* About Right Column Styling */
.about-right {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Hide mobile-only skills on desktop */
.mobile-only-skill {
    display: none;
}

/* About Image Styling */
.about-image {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.headshot-container {
    position: relative;
    width: 250px;
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.headshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 15px 40px rgba(144, 180, 148, 0.3);
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.headshot:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 50px rgba(144, 180, 148, 0.4);
}

.image-border {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 3px solid var(--accent-color);
    border-radius: 50%;
    opacity: 0.3;
    z-index: 1;
    animation: pulse-border 3s ease-in-out infinite;
}

@keyframes pulse-border {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.1;
    }
}

.about-intro {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.about-highlights {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
}

.highlight-item h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

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

.about-skills {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-skills h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    font-weight: 600;
}

.about-skills .skills-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.about-skills .skill-category {
    padding: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.about-skills .category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.about-skills .category-header i {
    font-size: 1.25rem;
    color: var(--accent-color);
}

.about-skills .category-header h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
}

.about-skills .skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.about-skills .skill-item {
    background: #f3f4f6;
    color: var(--text-dark);
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.about-skills .skill-item:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

/* Skill Category Styling - Consistent for both columns */
.skill-category {
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.category-header i {
    font-size: 1.25rem;
    color: var(--accent-color);
}

.category-header h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-item {
    background: #f3f4f6;
    color: var(--text-dark);
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.skill-item:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

/* ===== WORK SECTION ===== */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.experience-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.experience-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: rgba(59, 130, 246, 0.5);
}

.experience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-color);
}

.rivian-card::before { background: #00c851; }
.pg-card::before { background: #007bff; }
.research-card::before { background: #ff6b35; }
.invention-card::before { background: #ffc107; }

.experience-card::after {
    content: 'Click for details';
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    background: rgba(59, 130, 246, 0.9);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    pointer-events: none;
}

.experience-card:hover::after {
    opacity: 1;
    transform: translateY(0);
}

.experience-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.rivian-card .experience-icon { background: #00c851; }
.pg-card .experience-icon { background: #007bff; }
.research-card .experience-icon { background: #ff6b35; }
.invention-card .experience-icon { background: #ffc107; }

.experience-meta h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.experience-meta .position {
    display: block;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 0.25rem;
}

.experience-meta .duration,
.experience-meta .location {
    display: inline-block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-right: 1rem;
}

.experience-preview {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e5e7eb;
}

.experience-preview p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Projects DVD Screensaver */
.projects-screensaver {
    margin-top: 6rem;
    padding-top: 6rem;
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}

.screensaver-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 3rem;
}

.screensaver-container {
    position: relative;
    width: 100%;
    height: 400px;
    border: 2px solid rgba(144, 180, 148, 0.3);
    border-radius: 20px;
    background: rgba(26, 26, 26, 0.8);
    overflow: hidden;
    margin: 0 auto;
    max-width: 1000px;
    isolation: isolate; /* Create stacking context */
    /* Explicit containment for absolute children */
    contain: layout style;
    box-shadow: 0 10px 30px rgba(144, 180, 148, 0.1);
}

.project-square {
    position: absolute;
    width: 80px;
    height: 80px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: none; /* Disable transitions for animation */
    box-shadow: 0 4px 15px rgba(144, 180, 148, 0.2);
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    z-index: 2;
    left: 0;
    top: 0;
    /* Ensure squares stay within their container */
    will-change: transform;
}

.project-square:hover {
    /* Remove transform hover effects during animation */
    z-index: 3;
    box-shadow: 0 8px 25px rgba(144, 180, 148, 0.4);
}

.project-square.expanded {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1) !important;
    width: 90vw;
    height: 85vh;
    max-width: 1000px;
    max-height: 600px;
    border-radius: 30px;
    z-index: 1001;
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.5);
    background: inherit; /* Keep the original gradient background */
    border: 2px solid rgba(59, 130, 246, 0.5); /* Blue theme border for expanded state */
}

.square-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    color: white;
    text-align: center;
    z-index: 2;
    position: relative;
}

.square-content i {
    font-size: 1.5rem;
    margin-bottom: 0.2rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.square-content span {
    font-size: 0.65rem;
    font-weight: 600;
    line-height: 1.1;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.project-square.expanded .square-content {
    opacity: 0;
    transform: scale(0.8);
}

.square-details {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.8s ease;
    color: white;
}

.close-square {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    z-index: 10;
}

.close-square:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.project-square.expanded .square-details {
    opacity: 1;
    transform: scale(1);
}

.square-details h4 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.square-details p {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    opacity: 0.95;
    max-width: 600px;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

/* Overlay for expanded squares */
.square-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.square-overlay.active {
    opacity: 1;
    visibility: visible;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    justify-content: center;
}

.tag {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

/* Project Popup - centered on viewport */
.project-popup {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 1rem;
    box-sizing: border-box;
    border-radius: 20px; /* Match container border radius */
}

.project-popup.active {
    opacity: 1;
    visibility: visible;
}

.project-popup .popup-content {
    background: var(--card-bg);
    border: 2px solid rgba(59, 130, 246, 0.5);
    border-radius: 16px;
    padding: 1.5rem;
    max-width: 90%;
    width: 100%;
    max-height: 90%;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.project-popup.active .popup-content {
    transform: scale(1);
}

.project-popup .popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(59, 130, 246, 0.3);
}

.project-popup .popup-header h3 {
    color: var(--text-dark);
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0;
}

.project-popup .popup-close {
    background: rgba(59, 130, 246, 0.2);
    border: 2px solid rgba(59, 130, 246, 0.4);
    color: var(--text-dark);
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.project-popup .popup-close:hover {
    background: rgba(59, 130, 246, 0.4);
    transform: scale(1.1);
    color: white;
}

.project-popup .popup-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.popup-main-content {
    display: flex;
    gap: 2rem;
    width: 100%;
    align-items: flex-start;
    justify-content: flex-start;
    transition: justify-content 0.3s ease;
}

.popup-left-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.popup-right-content {
    flex: 0 0 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* When no images, center the content */
.popup-main-content[style*="center"] .popup-left-content {
    max-width: 600px;
}

.project-popup .popup-icon {
    margin-bottom: 2rem;
}

.project-popup .popup-icon i {
    font-size: 4rem;
    color: var(--accent-color);
    filter: drop-shadow(0 0 20px rgba(59, 130, 246, 0.3));
}

.project-popup .popup-content p {
    color: var(--text-muted);
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    max-width: 500px;
}

.project-popup .popup-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.project-popup .popup-tags .tag {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.popup-images {
    margin-top: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    max-height: 400px;
    overflow-y: auto;
}

.popup-images img {
    width: 100%;
    height: auto;
    min-height: 200px;
    max-height: 300px;
    object-fit: cover;
    border-radius: 12px;
    border: 2px solid rgba(59, 130, 246, 0.3);
    transition: transform 0.3s ease;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.popup-images img:hover {
    transform: scale(1.02);
    border-color: rgba(59, 130, 246, 0.6);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Responsive popup layout */
@media (max-width: 768px) {
    .popup-main-content {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .popup-right-content {
        flex: none;
        width: 100%;
    }
    
    .popup-images img {
        max-height: 200px;
        min-height: 150px;
    }
}

/* Project square color scheme based on modern palette */
.wooden-records {
    background: linear-gradient(135deg, #BFC8AD, #90B494, #718F94);
    border-color: #90B494;
}

.wooden-records .square-content i {
    color: #DBCFB0;
}

.custom-knives {
    background: linear-gradient(135deg, #718F94, #545775, #454775);
    border-color: #90B494;
}

.custom-knives .square-content i {
    color: #DBCFB0;
}

.startup {
    background: linear-gradient(135deg, #90B494, #718F94, #545775);
    border-color: #BFC8AD;
}

.startup .square-content i {
    color: #DBCFB0;
}

.robotics {
    background: linear-gradient(135deg, #545775, #454775, #718F94);
    border-color: #90B494;
}

.robotics .square-content i {
    color: #BFC8AD;
}

.videography {
    background: linear-gradient(135deg, #90B494, #BFC8AD, #DBCFB0);
    border-color: #718F94;
}

.videography .square-content i {
    color: #545775;
}

.camera-lens {
    background: linear-gradient(135deg, #718F94, #90B494, #BFC8AD);
    border-color: #545775;
}

.camera-lens .square-content i {
    color: #DBCFB0;
}

/* ===== SKILLS SECTION ===== */
.skills {
    background: var(--secondary-color);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.skill-category {
    padding: 2rem;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.category-header i {
    font-size: 1.5rem;
    color: var(--text-secondary);
}

.category-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.skill-list {
    display: grid;
    gap: 1.5rem;
}

.skill-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.skill-level {
    width: 100px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.skill-bar {
    height: 100%;
    background: var(--gradient-primary);
    width: 0%;
    transition: width 1s ease;
}

/* ===== CONTACT SECTION ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-intro h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.contact-intro p {
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 3rem;
}

.contact-methods {
    display: grid;
    gap: 2rem;
}

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

.method-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

.method-info {
    display: flex;
    flex-direction: column;
}

.method-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.method-value {
    color: var(--text-primary);
    font-weight: 500;
}

.contact-form {
    padding: 2rem;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: var(--text-primary);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--primary-color);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
}

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

.footer-left {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 2px;
}

.footer-left p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-contact {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.footer-contact i {
    color: var(--accent-color);
    font-size: 0.875rem;
}

.footer-contact a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--accent-color);
    color: #ffffff;
    transform: translateY(-2px);
}

.copyright {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-right {
        order: -1; /* Move image and skills to top on tablet */
    }
    
    .about-image {
        justify-content: flex-start;
        margin-bottom: 2rem;
    }
    
    .headshot-container {
        width: 240px;
        height: 240px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .project-item {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .project-item:nth-child(even) {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-right {
        order: -1; /* Move image to top on mobile */
    }
    
    /* Hide skill bubbles from left column on mobile */
    .about-text .skill-category {
        display: none;
    }
    
    /* Show mobile-only skills on mobile */
    .mobile-only-skill {
        display: block !important;
    }
    
    .about-image {
        justify-content: center;
        margin-bottom: 1.5rem;
    }
    
    .headshot-container {
        width: 200px;
        height: 200px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-right {
        align-items: center;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .about-skills .skill-items {
        gap: 0.4rem;
    }
    
    .about-skills .skill-item {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }
    
    /* Responsive screensaver layout */
    .screensaver-container {
        height: 300px;
        margin: 0 1rem;
    }
    
    .project-square {
        width: 60px;
        height: 60px;
    }
    
    .square-content i {
        font-size: 1.2rem;
    }
    
    .square-content span {
        font-size: 0.55rem;
    }
    
    .experience-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* Responsive expanded squares */
    .project-square.expanded {
        width: 95vw;
        height: 80vh;
        max-width: none;
        max-height: none;
    }
    
    .square-details h4 {
        font-size: 2rem;
    }
    
    .square-details p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 6rem 0 2rem;
    }
    
    .scroll-indicator {
        position: relative;
        left: 0;
        bottom: 0;
        margin-top: 2rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    /* Mobile screensaver layout */
    .screensaver-container {
        height: 250px;
        margin: 0 0.5rem;
    }
    
    .project-square {
        width: 50px;
        height: 50px;
    }
    
    .square-content span {
        font-size: 0.5rem;
    }
    
    .square-content i {
        font-size: 1rem;
    }
    
    .screensaver-title {
        font-size: 1.5rem;
    }
    
    /* Mobile responsive expanded squares */
    .project-square.expanded {
        width: 98vw;
        height: 85vh;
        border-radius: 20px;
    }
    
    .square-details {
        padding: 2rem 1rem;
    }
    
    .square-details h4 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .square-details p {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }
    
    .project-tags {
        gap: 0.25rem;
    }
    
    .tag {
        font-size: 0.6rem;
        padding: 0.15rem 0.4rem;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* ===== UTILITY CLASSES ===== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Experience Popup Styles */
.experience-popup {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 2rem;
    box-sizing: border-box;
}

.experience-popup.active {
    opacity: 1;
    visibility: visible;
}

.experience-popup .popup-content {
    background: var(--card-bg);
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-radius: 20px;
    padding: 3rem;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.experience-popup.active .popup-content {
    transform: scale(1);
}

.experience-popup .popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(59, 130, 246, 0.3);
}

.experience-popup .popup-header h3 {
    color: var(--text-dark);
    font-size: 2.2rem;
    font-weight: 700;
    margin: 0;
}

.experience-popup .popup-close {
    background: rgba(59, 130, 246, 0.2);
    border: 2px solid rgba(59, 130, 246, 0.4);
    color: var(--text-dark);
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.experience-popup .popup-close:hover {
    background: rgba(59, 130, 246, 0.4);
    transform: scale(1.1);
}

.experience-popup-meta {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    margin-bottom: 2rem;
}

.popup-icon-container {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    flex-shrink: 0;
}

.popup-meta-text {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.popup-position {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--accent-color);
}

.popup-duration,
.popup-location {
    font-size: 1rem;
    color: var(--text-muted);
}

.experience-popup-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.experience-popup-details li {
    background: rgba(59, 130, 246, 0.1);
    border-left: 4px solid var(--accent-color);
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    border-radius: 0 8px 8px 0;
    color: var(--text-dark);
    line-height: 1.6;
}

.experience-popup-details li::before {
    content: "•";
    color: var(--accent-color);
    font-weight: bold;
    margin-right: 0.5rem;
}

.experience-popup-images {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.experience-popup-images img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 12px;
    border: 2px solid rgba(59, 130, 246, 0.3);
    transition: transform 0.3s ease;
}

.experience-popup-images img:hover {
    transform: scale(1.05);
}

/* Color variations for different companies */
.rivian-popup .popup-icon-container { background: #00c851; }
.pg-popup .popup-icon-container { background: #007bff; }
.research-popup .popup-icon-container { background: #ff6b35; }
.invention-popup .popup-icon-container { background: #ffc107; }

.rivian-popup .experience-popup-details li { border-left-color: #00c851; }
.pg-popup .experience-popup-details li { border-left-color: #007bff; }
.research-popup .experience-popup-details li { border-left-color: #ff6b35; }
.invention-popup .experience-popup-details li { border-left-color: #ffc107; }

/* Mobile responsiveness */
@media (max-width: 768px) {
    .experience-popup {
        padding: 1rem;
    }
    
    .experience-popup .popup-content {
        padding: 2rem;
        max-height: 95vh;
    }
    
    .experience-popup .popup-header h3 {
        font-size: 1.8rem;
    }
    
    .experience-popup-meta {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .popup-icon-container {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        align-self: center;
    }
}