@charset "UTF-8";
:root {
    /* Dark Theme (Default) */
    --primary-color: #f9fafb;
    --secondary-color: #d1d5db;
    --accent-color: #60a5fa;
    --background-color: #0b1018;
    --surface-color: #111a27;
    --border-color: #253347;
    --grid-color: #293b51;
    --text-light: #9ca3af;
    --hover-color: #293548;

    /* Grid System */
    --grid-size: 24px;
    --grid-cols: 12;
    --container-width: 1200px;

    /* Spacing */
    --spacing-xs: 6px;
    --spacing-sm: 12px;
    --spacing-md: 24px;
    --spacing-lg: 24px;
    --spacing-xl: 48px;

    /* Typography */
    --font-mono: "JetBrains Mono", monospace;
    --font-sans: "Inter", sans-serif;
    --text-primary: var(--primary-color);
    --text-secondary: var(--secondary-color);
    --primary: var(--accent-color);
    --secondary: #9cc6ff;
    --bg-primary: var(--surface-color);
}

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

html,
body {
    background: var(--background-color);
    color: var(--primary-color);
    font-family: var(--font-sans);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
}

/* Grid Overlay System */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.3;
    --grid-highlight-x: 50%;
    --grid-highlight-y: 50%;
    background-image:
        radial-gradient(circle at var(--grid-highlight-x) var(--grid-highlight-y), rgba(59, 130, 246, 0.1) 0%, transparent 20%),
        linear-gradient(to right, var(--grid-color) 1px, transparent 1px),
        linear-gradient(to bottom, var(--grid-color) 1px, transparent 1px);
    background-size:
        100% 100%,
        var(--grid-size) var(--grid-size),
        var(--grid-size) var(--grid-size);
}

/* Technical Drawing Elements */
.tech-corner {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent-color);
}

.tech-corner::before,
.tech-corner::after {
    content: "";
    position: absolute;
    background: var(--accent-color);
}

.tech-corner::before {
    width: 8px;
    height: 2px;
    top: -2px;
    left: -2px;
}

.tech-corner::after {
    width: 2px;
    height: 8px;
    top: -2px;
    left: -2px;
}

.tech-corner.top-left {
    top: 0;
    left: 0;
}

.tech-corner.top-right {
    top: 0;
    right: 0;
    transform: rotate(90deg);
}

.tech-corner.bottom-left {
    bottom: 0;
    left: 0;
    transform: rotate(-90deg);
}

.tech-corner.bottom-right {
    bottom: 0;
    right: 0;
    transform: rotate(180deg);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 10;
}

/* Navigation */
.nav {
    position: fixed;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    z-index: 1000;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    color: var(--secondary-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    padding: 0.75rem 1.25rem;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    font-family: var(--font-mono);
    letter-spacing: 0;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(59, 130, 246, 0.1),
        transparent
    );
    transition: left 0.3s ease;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateX(-2px);
}

/* Side Navigation */
.side-nav {
    position: fixed;
    right: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 100;
}

.side-nav-link,
.resume-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #d3deea;
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 400;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(159, 193, 227, 0.21);
    border-radius: 3px;
    font-family: var(--font-mono);
}

.side-nav-link:hover,
.resume-download:hover {
    border-color: rgba(139, 220, 255, 0.8);
    background: rgba(96, 165, 250, 0.08);
    color: #fff;
    box-shadow: 0 0 18px rgba(96, 165, 250, 0.16);
}

.nav-link:focus-visible,
.side-nav-link:focus-visible,
.resume-download:focus-visible,
.hero-button:focus-visible {
    outline: 2px solid rgba(96, 165, 250, 0.75);
    outline-offset: 3px;
}

/* Hero Section */
.hero {
    min-height: 78vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 3rem 0;
    position: relative;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 2;
}

.hero-portrait {
    width: 92px;
    height: 92px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    margin: 0 auto 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
 }

.hero-kicker {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    letter-spacing: 0;
    color: var(--primary-color);
    font-family: var(--font-sans);
}

.hero h1 span {
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-weight: 600;
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    font-family: var(--font-mono);
    letter-spacing: 0;
}

.hero .description {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: var(--spacing-md);
}

.hero-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 160px;
    padding: 0.9rem 1.4rem;
    border: 1px solid var(--accent-color);
    background: var(--accent-color);
    color: #08101b;
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.hero-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 24px rgba(96, 165, 250, 0.18);
}

.hero-button.secondary {
    background: rgba(255, 255, 255, 0.03);
    color: var(--primary-color);
    border-color: var(--border-color);
}

.hero-highlights {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 3rem;
    text-align: left;
}

.highlight-card {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.highlight-label {
    display: inline-block;
    margin-bottom: 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-color);
}

.highlight-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--secondary-color);
    max-width: none;
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
    border-top: 1px solid var(--border-color);
    background: transparent;
    margin-bottom: var(--spacing-lg);
}

.section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
    font-family: var(--font-mono);
    letter-spacing: 0;
    position: relative;
    display: inline-block;
}

.section h2::before {
    content: "//";
    position: absolute;
    left: -2.5rem;
    color: var(--accent-color);
    font-weight: 400;
}

.section h2::after {
    content: "";
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--accent-color);
}

.section p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--secondary-color);
    max-width: 65ch;
    margin: 0;
}

.section-panel {
    background: var(--background-color);
    padding: var(--spacing-md) 0;
}

#about .section-panel {
    display: block;
    max-width: 760px;
    padding: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(15, 23, 42, 0.72);
}

.section-followup {
    margin-top: 1rem;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    transition: all 0.2s ease;
    text-decoration: none;
    color: var(--primary-color);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(59, 130, 246, 0.02),
        transparent
    );
    transition: width 0.3s ease;
}

.card:hover::before {
    width: 100%;
}

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

.card-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    position: relative;
    z-index: 2;
}

.card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-sm);
}

.card p {
    color: var(--secondary-color);
    font-size: 1rem;
    line-height: 1.6;
}

.card-link {
    color: var(--accent-color);
    font-weight: 500;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    transition: all 0.2s ease;
}

.card-link::after {
    content: "→";
    transition: transform 0.2s ease;
}

.card:hover .card-link::after {
    transform: translateX(4px);
}

/* Resume Styles */
.resume-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    margin-top: 6rem;
    position: relative;
}

.resume-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
    position: relative;
    z-index: 2;
}

.resume-header::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 2px;
    background: var(--accent-color);
}

.resume-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-family: var(--font-mono);
    text-wrap: balance;
}

.resume-header p {
    color: var(--secondary-color);
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    text-wrap: balance;
}

.contact-info {
    color: var(--text-light);
    font-size: 1rem;
    font-family: var(--font-mono);
    font-weight: 400;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: baseline;
    column-gap: 0.75rem;
    row-gap: 0.25rem;
    margin-bottom: var(--spacing-md);
}

.contact-info > * + *::before {
    content: "|";
    color: var(--text-light);
    margin-right: 0.75rem;
}

.contact-info a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.contact-info a:hover {
    color: var(--primary-color);
}

.resume-download {
    margin-top: var(--spacing-sm);
}

.resume-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    position: relative;
    z-index: 2;
}

.resume-section h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    font-family: var(--font-mono);
    text-wrap: balance;
}

.resume-section h2::before {
    content: "//";
    margin-right: var(--spacing-md);
    color: var(--accent-color);
    font-weight: 400;
}

.experience-item {
    margin-bottom: var(--spacing-lg);
    border-left: 2px solid var(--accent-color);
    padding-left: var(--spacing-lg);
    position: relative;
}

.experience-item::before {
    content: "";
    position: absolute;
    left: -5px;
    top: 0;
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
}

.experience-item h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    font-family: var(--font-mono);
    text-wrap: balance;
}

.experience-item .date {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    font-weight: 400;
    font-family: var(--font-mono);
    display: flex;
    flex-wrap: wrap;
    column-gap: 0.5rem;
    row-gap: 0.1rem;
    text-wrap: pretty;
}

.experience-item .date span + span::before {
    content: "|";
    margin-right: 0.5rem;
}

.experience-item ul {
    list-style: none;
    padding: 0;
}

.experience-item li {
    margin-bottom: var(--spacing-sm);
    position: relative;
    color: var(--secondary-color);
    line-height: 1.6;
    padding-left: var(--spacing-md);
    text-wrap: pretty;
}

.resume-section > p {
    text-wrap: pretty;
}

.experience-item li::before {
    content: "▶";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-size: 0.8rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-portrait {
        width: 78px;
        height: 78px;
    }

    .hero .subtitle {
        font-size: 1.1rem;
    }

    .hero .description {
        font-size: 1rem;
    }

    .section {
        padding: var(--spacing-lg) 0;
    }

    .section h2 {
        font-size: 1.5rem;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-section {
        padding: 2rem 1rem;
    }

    .portfolio-section .portfolio-grid {
        padding: 0;
        margin: 2rem 0 0;
    }

    .side-nav {
        position: fixed;
        bottom: calc(env(safe-area-inset-bottom, 0px) + 12px);
        top: auto;
        left: 12px;
        right: 12px;
        transform: none;
        flex-direction: row;
        justify-content: flex-start;
        gap: 6px;
        background: rgba(17, 26, 39, 0.96);
        border: 1px solid var(--border-color);
        border-radius: 4px;
        padding: 6px;
        backdrop-filter: blur(12px);
    }

    .side-nav-link {
        flex: 1 1 0;
        min-width: 0;
        min-height: 44px;
        padding: 0.45rem 0.15rem;
        font-size: clamp(0.58rem, 2.65vw, 0.72rem);
        white-space: nowrap;
    }

    .side-nav-link:hover {
        transform: translateY(-2px);
    }

    .container,
    .resume-container {
        padding-bottom: 7rem;
    }

    .resume-container {
        margin: 4rem 8px 0;
        padding: 24px 12px 7rem;
    }

    .resume-section {
        padding: 14px 12px;
    }

    .resume-header h1 {
        font-size: clamp(1.3rem, 7.5vw, 2rem);
        white-space: nowrap;
    }

    .resume-header > p {
        font-size: 1rem;
    }

    .contact-info {
        column-gap: 0.45rem;
        row-gap: 0.2rem;
        font-size: clamp(0.68rem, 3.3vw, 0.85rem);
        overflow-wrap: anywhere;
    }

    .contact-info > * + *::before {
        margin-right: 0.45rem;
    }

    .resume-section h2 {
        font-size: 1.1rem;
    }

    .experience-item {
        padding-left: 12px;
    }

    .experience-item h3 {
        font-size: 1.05rem;
    }

    .experience-item li {
        padding-left: 16px;
        line-height: 1.55;
    }

    .experience-item .date {
        font-size: 0.78rem;
        column-gap: 0.3rem;
    }

    .experience-item .date span + span::before {
        margin-right: 0.3rem;
    }

    .grid-overlay {
        background-size: 16px 16px;
    }
}

/* Print Styles */
@page {
    size: letter;
    margin: 0.55in;
}

@media print {
    .grid-overlay,
    .nav,
    .side-nav,
    .resume-download {
        display: none;
    }

    html,
    body {
        min-height: 0;
        background: #fff !important;
        color: #111 !important;
        font-size: 10pt;
        line-height: 1.38;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .resume-container {
        width: 100%;
        max-width: none;
        margin-top: 0;
        padding: 0;
        border: none;
        background: #fff;
        color: #111;
    }

    .resume-container .resume-section,
    .resume-container .resume-section * {
        opacity: 1 !important;
        animation: none !important;
        visibility: visible !important;
    }

    .resume-header {
        margin-bottom: 0.22in;
        padding-bottom: 0.14in;
        border-color: #94a3b8;
    }

    .resume-header h1,
    .resume-section h2,
    .experience-item h3 {
        color: #111;
    }

    .resume-header p,
    .contact-info,
    .resume-section p,
    .experience-item li {
        color: #222;
    }

    .contact-info {
        font-size: 8.5pt;
    }

    .resume-section {
        margin-bottom: 0.2in;
        padding: 0;
        background: #fff;
        border: none;
        break-inside: auto;
        page-break-inside: auto;
    }

    .resume-section h2 {
        margin-bottom: 0.12in;
        break-after: avoid-page;
        page-break-after: avoid;
    }

    .experience-item {
        margin-bottom: 0.15in;
        break-inside: avoid-page;
        page-break-inside: avoid;
    }

    .experience-item h3 {
        break-after: avoid-page;
        page-break-after: avoid;
    }

    .experience-item .date {
        color: #4b5563;
    }

    .experience-item ul {
        margin-top: 0.05in;
    }

    .resume-section a {
        color: #111;
        text-decoration: underline;
    }
}

/* Reveal animation */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.6s ease-out forwards;
    animation-delay: 0.2s;
}

/* Homepage Work Integration */
.portfolio-section {
    padding: 3rem 0;
    width: 100%;
    margin: 0 auto;
    max-width: none;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 760px;
    margin: 0;
    line-height: 1.6;
}

.portfolio-note {
    margin-top: 1rem;
    max-width: 760px;
    color: var(--text-light);
    font-size: 0.98rem;
}

/* Adjust portfolio grid for homepage */
.portfolio-section .portfolio-grid {
    max-width: none;
    margin: var(--spacing-md) 0 0;
    padding: 0;
}

.portfolio-section .filter-container {
    margin-bottom: var(--spacing-md);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 900px) {
    .hero-highlights {
        grid-template-columns: 1fr;
    }
}