/* ==================== CSS Variables ==================== */
:root {
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-tertiary: #18181b;
    --bg-card: #1a1a1d;
    --bg-card-hover: #222225;
    
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --accent: #22d3ee;
    --accent-dim: #0891b2;
    --accent-glow: rgba(34, 211, 238, 0.15);
    --accent-glow-strong: rgba(34, 211, 238, 0.3);
    
    --gradient-accent: linear-gradient(135deg, #22d3ee 0%, #06b6d4 50%, #0891b2 100%);
    --gradient-bg: radial-gradient(ellipse at top, #18181b 0%, #0a0a0b 50%);
    
    --border-color: #27272a;
    --border-accent: rgba(34, 211, 238, 0.2);
    
    --font-display: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --container-max: 1200px;
    --container-padding: 2rem;
}

/* ==================== Reset & Base ==================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-display);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

ul {
    list-style: none;
}

/* ==================== Particle Canvas ==================== */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.6;
}

/* ==================== Navigation ==================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem var(--container-padding);
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.02em;
    transition: var(--transition-fast);
}

.nav-logo:hover {
    text-shadow: 0 0 20px var(--accent-glow-strong);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link-icon {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    border-radius: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.nav-link-icon::after {
    display: none;
}

.nav-link-icon:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
    color: var(--accent);
}

/* ==================== Main Content ==================== */
main {
    position: relative;
    z-index: 1;
}

/* ==================== Hero Section ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem var(--container-padding) 4rem;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 4rem;
    max-width: var(--container-max);
}

.hero-image-container {
    position: relative;
    flex-shrink: 0;
}

.hero-image-glow {
    position: absolute;
    inset: -20px;
    background: var(--gradient-accent);
    border-radius: 50%;
    opacity: 0.2;
    filter: blur(40px);
    animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.15; transform: scale(1); }
    50% { opacity: 0.25; transform: scale(1.05); }
}

.hero-image {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--bg-tertiary);
    position: relative;
    z-index: 1;
    transition: var(--transition-base);
}

.hero-image:hover {
    border-color: var(--accent);
    transform: scale(1.02);
}

.hero-text {
    flex: 1;
}

.hero-greeting {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--accent);
    margin-bottom: 1rem;
    min-height: 1.5em;
}

.cursor {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.hero-location {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border-radius: 100px;
    border: 1px solid var(--border-color);
}

.hero-location svg {
    color: var(--accent);
}

/* ==================== Section Styles ==================== */
section {
    padding: 5rem var(--container-padding);
    max-width: var(--container-max);
    margin: 0 auto;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.section-number {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.section-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-color) 0%, transparent 100%);
}

/* ==================== About Section ==================== */
.about-content {
    max-width: 800px;
}

.about-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-text:last-child {
    margin-bottom: 0;
}

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

.text-link {
    color: var(--accent);
    position: relative;
    font-weight: 500;
}

.text-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-base);
}

.text-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ==================== Skills Section ==================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.75rem;
    transition: var(--transition-base);
}

.skill-category:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.skill-category-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.skill-icon {
    font-size: 1.25rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.skill-item {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding-left: 1rem;
    position: relative;
}

.skill-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
}

/* ==================== CTA Section ==================== */
.cta {
    text-align: center;
    padding: 6rem var(--container-padding);
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.cta-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 10px;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--accent-glow-strong);
}

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

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

/* ==================== Footer ==================== */
.footer {
    padding: 2rem var(--container-padding);
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ==================== Reveal Animation ==================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== Project Cards (for projects page) ==================== */
.projects-grid {
    display: grid;
    gap: 2rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-base);
}

.project-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.project-card.featured {
    border-color: var(--border-accent);
}

.project-header {
    padding: 2rem 2rem 1.5rem;
}

.project-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--accent-glow);
    color: var(--accent);
    border-radius: 100px;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    padding: 0.35rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.tech-tag:hover {
    border-color: var(--border-accent);
    color: var(--accent);
}

.project-images {
    padding: 0 2rem 2rem;
}

.project-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-base);
}

.gallery-item:hover {
    border-color: var(--border-accent);
    transform: scale(1.02);
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition-base);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* Disable transforms for GIFs to prevent restart on hover */
.gallery-item.gif-item:hover {
    transform: none;
}

.gallery-item.gif-item:hover img {
    transform: none;
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
    font-size: 0.85rem;
    font-weight: 500;
}

/* ==================== Gallery Sections ==================== */
.gallery-section {
    margin-bottom: 2rem;
}

.gallery-section:last-child {
    margin-bottom: 0;
}

.gallery-section-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==================== Auto-Scroll Preview ==================== */
.gallery-item.scroll-preview {
    height: 300px;
}

.gallery-item.scroll-preview img {
    height: auto;
    object-fit: cover;
    object-position: top;
    animation: scroll-preview 8s ease-in-out infinite;
    animation-play-state: paused;
}

.gallery-item.scroll-preview:hover img {
    animation-play-state: running;
}

@keyframes scroll-preview {
    0%, 10% { object-position: top; }
    45%, 55% { object-position: bottom; }
    90%, 100% { object-position: top; }
}

/* ==================== Mobile Phone Mockup ==================== */
.gallery-item.phone-mockup {
    background: var(--bg-tertiary);
    padding: 1rem 0.5rem;
    border-radius: 24px;
    border: 3px solid #333;
    max-width: 180px;
    margin: 0 auto;
    position: relative;
}

.gallery-item.phone-mockup::before {
    content: '';
    position: absolute;
    top: 0.4rem;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 6px;
    background: #222;
    border-radius: 10px;
    z-index: 10;
}

.gallery-item.phone-mockup img {
    height: 320px;
    object-fit: cover;
    object-position: top;
    border-radius: 12px;
}

.gallery-item.phone-mockup .gallery-caption {
    position: relative;
    background: transparent;
    text-align: center;
    padding: 0.75rem 0.5rem 0;
}

/* GIF paused until clicked - shows first frame */
.gallery-item.gif-on-click img {
    animation-play-state: paused;
}

/* Mobile mockup scrolls when in lightbox */
.lightbox img.mobile-scroll {
    object-fit: cover;
    object-position: top;
    height: 80vh;
    width: auto;
    max-width: 400px;
    animation: mobile-scroll 6s ease-in-out infinite;
}

@keyframes mobile-scroll {
    0%, 15% { object-position: top; }
    42%, 58% { object-position: bottom; }
    85%, 100% { object-position: top; }
}

.project-links {
    display: flex;
    gap: 1rem;
    padding: 0 2rem 2rem;
}

/* ==================== Resume Page Styles ==================== */
.resume-header {
    text-align: center;
    margin-bottom: 3rem;
}

.resume-download {
    margin-top: 1.5rem;
}

.timeline {
    position: relative;
    max-width: 900px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent) 0%, var(--border-color) 100%);
}

.timeline-item {
    position: relative;
    padding-left: 2.5rem;
    padding-bottom: 3rem;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -5px;
    top: 0;
    width: 12px;
    height: 12px;
    background: var(--accent);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.75rem;
    transition: var(--transition-base);
}

.timeline-content:hover {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.timeline-role {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

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

.timeline-achievements {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-achievement {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding-left: 1.25rem;
    position: relative;
    line-height: 1.6;
}

.timeline-achievement::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
}

.education-section {
    margin-top: 4rem;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.education-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.75rem;
    transition: var(--transition-base);
}

.education-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
}

.education-degree {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.education-school {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.education-year {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
}

/* ==================== Lightbox ==================== */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    cursor: zoom-out;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 95vw;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    cursor: zoom-in;
}

@media (max-width: 600px) {
    .lightbox {
        padding: 0.5rem;
    }

    .lightbox img {
        max-width: 100vw;
        max-height: 95vh;
        border-radius: 4px;
    }
}

.lightbox.scrollable {
    overflow: auto;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 2rem;
}

.lightbox.scrollable img {
    margin: auto;
}

.lightbox img.zoomed {
    max-width: 150%;
    max-height: 150vh;
    width: auto;
    height: auto;
    cursor: grab;
}

.lightbox img.zoomed:active {
    cursor: grabbing;
}

.lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 1.5rem;
    transition: var(--transition-fast);
}

.lightbox-close:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
}

/* ==================== Responsive ==================== */
@media (max-width: 900px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-image {
        width: 200px;
        height: 200px;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .nav-link:not(.nav-link-icon) {
        display: none;
    }
}

@media (max-width: 600px) {
    :root {
        --container-padding: 1.25rem;
    }
    
    .hero {
        min-height: auto;
        padding-top: 8rem;
    }
    
    .section-header {
        flex-wrap: wrap;
    }
    
    .section-line {
        display: none;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .timeline::before {
        left: 6px;
    }
    
    .timeline-item {
        padding-left: 2rem;
    }
    
    .timeline-dot {
        left: 0;
    }
}

/* ==================== Mobile Nav ==================== */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.nav-hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-base);
}

.nav-hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 900px) {
    .nav {
        padding: 1rem var(--container-padding);
    }

    .nav-hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem 2rem 2rem;
        gap: 0;
        border-left: 1px solid var(--border-color);
        transition: right var(--transition-base);
        z-index: 1000;
    }

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

    .nav-link:not(.nav-link-icon) {
        display: block;
        width: 100%;
        padding: 1rem 0;
        font-size: 1.1rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-link:not(.nav-link-icon)::after {
        display: none;
    }

    .nav-link-icon {
        margin-top: 1rem;
    }

    .nav-links .nav-link-icon:first-of-type {
        margin-top: 2rem;
    }

    .nav-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }

    .nav-overlay.active {
        display: block;
    }
}