:root {
    --bg: #080b12;
    --bg-soft: #0d111a;
    --surface: #111722;
    --surface-hover: #151c29;

    --text: #f4f7fb;
    --text-soft: #c5ccd8;
    --text-muted: #7f899a;

    --border: #202938;
    --border-light: #293446;

    --primary: #5b8cff;
    --primary-hover: #79a1ff;
    --accent: #8b7cff;
    --success: #4ade80;

    --container-width: 1160px;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;

    --transition-fast: 180ms ease;
}


/* =========================================================
   RESET
   ========================================================= */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    color-scheme: dark;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 80% 0%,
            rgba(91, 140, 255, 0.10),
            transparent 30rem),
        var(--bg);
    color: var(--text);
    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

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

button,
input,
textarea {
    font: inherit;
}

button {
    color: inherit;
}

button:not(:disabled) {
    cursor: pointer;
}


/* =========================================================
   LAYOUT
   ========================================================= */

.container {
    width: min(calc(100% - 2rem),
            var(--container-width));
    margin-inline: auto;
}


/* =========================================================
   HEADER / NAVIGATION
   ========================================================= */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(8, 11, 18, 0.86);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.navbar {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.8rem;
}

.nav-links a {
    position: relative;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 100%;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-fast);
}

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

.nav-links a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    margin: 4px auto;
    background: var(--text);
    transition:
        transform var(--transition-fast),
        opacity var(--transition-fast);
}


/* =========================================================
   HERO
   ========================================================= */

.hero {
    position: relative;
    padding: 8rem 0 7rem;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    width: 500px;
    height: 500px;
    top: -220px;
    right: -160px;
    border-radius: 50%;
    background:
        radial-gradient(circle,
            rgba(139, 124, 255, 0.14),
            transparent 70%);
    pointer-events: none;
}

.hero-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns:
        minmax(0, 1.15fr) minmax(320px, 0.85fr);
    gap: 5rem;
    align-items: center;
}

.hero-content {
    max-width: 780px;
}

.hero-status {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    margin-bottom: 1.5rem;
    padding: 0.45rem 0.75rem;
    border: 1px solid rgba(74, 222, 128, 0.18);
    border-radius: 999px;
    background: rgba(74, 222, 128, 0.06);
    color: #9be7b3;
    font-size: 0.78rem;
    font-weight: 600;
}

.status-dot {
    width: 7px;
    height: 7px;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--success);
    box-shadow:
        0 0 0 4px rgba(74, 222, 128, 0.08);
}

.hero-eyebrow,
.section-eyebrow {
    margin: 0 0 0.8rem;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.16em;
}

.hero h1 {
    max-width: 850px;
    margin: 0;
    font-size: clamp(3rem, 6vw, 5.8rem);
    line-height: 0.98;
    letter-spacing: -0.065em;
}

.hero h1 span {
    display: block;
    color: var(--text-muted);
}

.hero-description {
    max-width: 680px;
    margin: 2rem 0 0;
    color: var(--text-soft);
    font-size: 1.1rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
}


/* =========================================================
   BUTTONS
   ========================================================= */

.button {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding: 0 1.25rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 700;
    transition:
        transform var(--transition-fast),
        background var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast);
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    background: var(--primary);
    color: white;
    box-shadow:
        0 10px 30px rgba(91, 140, 255, 0.18);
}

.button-primary:hover {
    background: var(--primary-hover);
}

.button-secondary {
    border-color: var(--border-light);
    background: var(--surface);
    color: var(--text);
}

.button-secondary:hover {
    background: var(--surface-hover);
    border-color: #354257;
}


/* =========================================================
   HERO STACK
   ========================================================= */

.hero-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 2.5rem;
}

.hero-stack span,
.card-tags span {
    padding: 0.35rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 600;
}


/* =========================================================
   TERMINAL
   ========================================================= */

.hero-terminal,
.technical-code {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: #0a0e16;
}

.hero-terminal {
    box-shadow:
        0 30px 80px rgba(0, 0, 0, 0.35);
}

.terminal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
    font-family:
        "SFMono-Regular",
        Consolas,
        "Liberation Mono",
        monospace;
    font-size: 0.72rem;
}

.terminal-dots {
    display: flex;
    gap: 5px;
}

.terminal-dots span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #394353;
}

.terminal-body {
    padding: 1.8rem;
    color: #9ba7ba;
    font-family:
        "SFMono-Regular",
        Consolas,
        "Liberation Mono",
        monospace;
    font-size: 0.82rem;
    line-height: 2;
}

.code-indent {
    padding-left: 1.5rem;
}

.code-keyword {
    color: #9b8cff;
}

.code-type {
    color: #68a0ff;
}


/* =========================================================
   SECTIONS
   ========================================================= */

.section {
    padding: 7rem 0;
}

.section-surface {
    background: var(--bg-soft);
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.section-header {
    max-width: 760px;
    margin-bottom: 3.5rem;
}

.section-header h1,
.section-header h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.08;
    letter-spacing: -0.045em;
}

.section-header h2 span {
    color: var(--text-muted);
}

.section-header-row {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 2rem;
    max-width: none;
}


/* =========================================================
   ABOUT PREVIEW
   ========================================================= */

.about-preview {
    display: grid;
    grid-template-columns: 240px minmax(0, 700px);
    gap: 5rem;
    align-items: start;
}

.about-number {
    padding-top: 0.5rem;
}

.about-number strong {
    display: block;
    font-size: 5rem;
    line-height: 0.9;
    letter-spacing: -0.07em;
}

.about-number span {
    display: block;
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.about-preview .about-content,
.about-story .about-content {
    max-width: 760px;
}

.about-preview .about-content p {
    margin: 0 0 1.25rem;
    color: var(--text-soft);
    font-size: 1.05rem;
    line-height: 1.85;
}

.text-link {
    display: inline-flex;
    margin-top: 0.5rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text);
    font-size: 0.88rem;
    font-weight: 700;
    transition:
        color var(--transition-fast),
        border-color var(--transition-fast);
}

.text-link:hover {
    color: var(--primary);
    border-color: var(--primary);
}


/* =========================================================
   EXPERTISE
   ========================================================= */

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.expertise-card {
    min-height: 330px;
    display: flex;
    flex-direction: column;
    padding: 1.6rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast);
}

.expertise-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-light);
    background: var(--surface-hover);
}

.expertise-number {
    color: var(--primary);
    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;
    font-size: 0.72rem;
}

.expertise-card h3 {
    margin: 3rem 0 1rem;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
}

.expertise-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.75;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: auto;
    padding-top: 1.5rem;
}


/* =========================================================
   EXPERIENCE PREVIEW
   ========================================================= */

.experience-preview {
    max-width: 950px;
    margin-bottom: 2rem;
}

.experience-item {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 3rem;
    padding: 2.5rem 0;
    border-top: 1px solid var(--border);
}

.experience-item:last-child {
    border-bottom: 1px solid var(--border);
}

.experience-meta {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.experience-year {
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 700;
}

.experience-type {
    color: var(--text-muted);
    font-size: 0.72rem;
}

.experience-main {
    min-width: 0;
}

.experience-main h3 {
    margin: 0;
    font-size: 1.45rem;
    letter-spacing: -0.03em;
}

.experience-company {
    margin: 0.35rem 0 1rem;
    color: var(--primary);
    font-size: 0.88rem;
    font-weight: 700;
}

.experience-main>p:last-child {
    max-width: 680px;
    margin: 0;
    color: var(--text-muted);
    line-height: 1.8;
}


/* =========================================================
   PROJECT CARDS
   ========================================================= */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.project-card {
    min-height: 390px;
    display: flex;
    flex-direction: column;
    padding: 1.8rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-light);
    background: var(--surface-hover);
}

.project-card-featured {
    background:
        linear-gradient(145deg,
            rgba(91, 140, 255, 0.09),
            var(--surface) 45%);
}

.project-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.project-type {
    color: var(--primary);
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.project-arrow {
    color: var(--text-muted);
    font-size: 1.2rem;
}

.project-card h3 {
    margin: 4rem 0 1rem;
    font-size: 1.7rem;
    letter-spacing: -0.04em;
}

.project-card>p {
    max-width: 600px;
    margin: 0;
    color: var(--text-muted);
    line-height: 1.8;
}

.project-card .card-tags {
    margin-top: 1.5rem;
    padding-top: 0;
}

.project-link {
    margin-top: auto;
    padding-top: 2rem;
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 700;
    transition: color var(--transition-fast);
}

.project-link:hover {
    color: var(--primary);
}


/* =========================================================
   CTA
   ========================================================= */

.section-cta {
    padding-top: 5rem;
    padding-bottom: 7rem;
}

.cta-box {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 3rem;
    padding: 3.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background:
        radial-gradient(circle at 90% 20%,
            rgba(91, 140, 255, 0.12),
            transparent 25rem),
        var(--surface);
}

.cta-box h2 {
    max-width: 650px;
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.05;
    letter-spacing: -0.05em;
}

.cta-box p:last-child {
    max-width: 620px;
    margin: 1.25rem 0 0;
    color: var(--text-muted);
    line-height: 1.8;
}


/* =========================================================
   FOOTER
   ========================================================= */

.site-footer {
    border-top: 1px solid var(--border);
}

.footer-content {
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.footer-content p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.78rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text);
}


/* =========================================================
   ACCESSIBILITY
   ========================================================= */

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 4px;
}


/* =========================================================
   ABOUT PAGE
   ========================================================= */

.page-hero {
    padding: 7rem 0 6rem;
    border-bottom: 1px solid var(--border);
}

.page-hero h1 {
    max-width: 900px;
    margin: 0;
    font-size: clamp(3rem, 6vw, 5.5rem);
    line-height: 0.98;
    letter-spacing: -0.065em;
}

.page-hero h1 span {
    display: block;
    color: var(--text-muted);
}

.page-hero-description {
    max-width: 700px;
    margin: 2rem 0 0;
    color: var(--text-soft);
    font-size: 1.1rem;
    line-height: 1.8;
}


/* =========================================================
   ABOUT STORY
   ========================================================= */

.about-story {
    display: grid;
    grid-template-columns: 100px minmax(0, 760px);
    gap: 3rem;
    align-items: start;
}

.about-story-marker {
    padding-top: 0.4rem;
}

.about-story-marker span,
.focus-number,
.approach-number {
    color: var(--primary);
    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.about-story .about-content p {
    margin: 0 0 1.4rem;
    color: var(--text-soft);
    font-size: 1.05rem;
    line-height: 1.9;
}

.about-story .about-content p:last-child {
    margin-bottom: 0;
}


/* =========================================================
   ABOUT FOCUS
   ========================================================= */

.focus-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.focus-card {
    min-height: 280px;
    padding: 2rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast);
}

.focus-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-light);
    background: var(--surface-hover);
}

.focus-card h3 {
    margin: 3.5rem 0 1rem;
    font-size: 1.35rem;
    letter-spacing: -0.03em;
}

.focus-card p {
    max-width: 560px;
    margin: 0;
    color: var(--text-muted);
    line-height: 1.8;
}


/* =========================================================
   STACK
   ========================================================= */

.stack-layout {
    max-width: 900px;
}

.stack-group {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 2rem;
    padding: 1.6rem 0;
    border-top: 1px solid var(--border);
}

.stack-group:last-child {
    border-bottom: 1px solid var(--border);
}

.stack-label {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

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

.stack-items span {
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text-soft);
    font-size: 0.78rem;
    font-weight: 600;
}


/* =========================================================
   APPROACH
   ========================================================= */

.approach-list {
    max-width: 900px;
}

.approach-item {
    display: grid;
    grid-template-columns: 70px minmax(0, 1fr);
    gap: 2rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
}

.approach-item:last-child {
    border-bottom: 1px solid var(--border);
}

.approach-item h3 {
    margin: 0 0 0.75rem;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
}

.approach-item p {
    max-width: 700px;
    margin: 0;
    color: var(--text-muted);
    line-height: 1.8;
}


/* =========================================================
   EDUCATION
   ========================================================= */

.education-card {
    max-width: 900px;
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 3rem;
    padding: 2rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
}

.education-year {
    color: var(--primary);
    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;
    font-size: 0.8rem;
    font-weight: 700;
}

.education-card h3 {
    margin: 0;
    font-size: 1.3rem;
    letter-spacing: -0.025em;
}

.education-card p {
    margin: 0.4rem 0;
    color: var(--text-soft);
}

.education-card span {
    color: var(--text-muted);
    font-size: 0.82rem;
}


/* =========================================================
   EXPERIENCE PAGE
   ========================================================= */

.experience-timeline {
    max-width: 1000px;
}

.experience-block {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 3.5rem;
    padding: 3.5rem 0;
    border-top: 1px solid var(--border);
}

.experience-block:last-child {
    border-bottom: 1px solid var(--border);
}

.experience-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-top: 0.35rem;
}

.experience-index {
    color: var(--primary);
    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;
    font-size: 0.75rem;
    font-weight: 700;
}

.experience-period {
    color: var(--text-muted);
    font-size: 0.78rem;
    line-height: 1.5;
}

.experience-details {
    min-width: 0;
}

.experience-heading {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 2rem;
}

.experience-heading h3 {
    margin: 0;
    font-size: clamp(1.5rem, 3vw, 2rem);
    line-height: 1.15;
    letter-spacing: -0.04em;
}

.experience-badge {
    flex-shrink: 0;
    padding: 0.4rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 700;
}

.experience-summary {
    max-width: 700px;
    margin: 1.75rem 0 0;
    color: var(--text-soft);
    line-height: 1.85;
}


/* =========================================================
   EXPERIENCE RESPONSIBILITIES
   ========================================================= */

.experience-responsibilities {
    margin-top: 2rem;
}

.responsibility {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 0.75rem;
    padding: 0.8rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.045);
}

.responsibility span {
    padding-top: 0.1rem;
    color: var(--text-muted);
    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;
    font-size: 0.65rem;
}

.responsibility p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.7;
}


/* =========================================================
   EXPERIENCE TAGS
   ========================================================= */

.experience-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 2rem;
}

.experience-tags span {
    padding: 0.4rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
}


/* =========================================================
   ENGINEERING AREAS
   ========================================================= */

.experience-area-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.experience-area-card {
    min-height: 270px;
    padding: 1.6rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast);
}

.experience-area-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-light);
    background: var(--surface-hover);
}

.experience-area-card>span {
    color: var(--primary);
    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;
    font-size: 0.72rem;
}

.experience-area-card h3 {
    margin: 3.5rem 0 1rem;
    font-size: 1.15rem;
    letter-spacing: -0.025em;
}

.experience-area-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.75;
}


/* =========================================================
   PERFORMANCE
   ========================================================= */

.performance-layout {
    display: grid;
    grid-template-columns:
        minmax(0, 0.9fr) minmax(0, 1fr);
    gap: 5rem;
    align-items: start;
}

.performance-layout .section-header {
    margin-bottom: 0;
}

.performance-content {
    max-width: 650px;
}

.performance-content>p {
    margin: 0 0 1.25rem;
    color: var(--text-muted);
    line-height: 1.85;
}

.performance-principles {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.performance-principles div {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.performance-principles span {
    color: var(--primary);
    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;
    font-size: 0.65rem;
}

.performance-principles strong {
    color: var(--text);
    font-size: 0.8rem;
}


/* =========================================================
   COLLABORATION
   ========================================================= */

.collaboration-box {
    max-width: 850px;
    padding: 2rem;
    border-left: 2px solid var(--primary);
    background: var(--surface);
}

.collaboration-box p {
    margin: 0 0 1.25rem;
    color: var(--text-soft);
    font-size: 1rem;
    line-height: 1.85;
}

.collaboration-box p:last-child {
    margin-bottom: 0;
}


/* =========================================================
   PROJECTS PAGE
   ========================================================= */

.projects-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 1100px;
}


/* =========================================================
   PROJECT SHOWCASE
   ========================================================= */

.project-showcase {
    display: grid;
    grid-template-columns: 90px minmax(0, 1fr);
    gap: 2rem;
    padding: 2.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast);
}

.project-showcase:hover {
    transform: translateY(-4px);
    border-color: var(--border-light);
    background: var(--surface-hover);
}

.project-showcase-number {
    padding-top: 0.25rem;
    color: var(--primary);
    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;
    font-size: 0.75rem;
    font-weight: 700;
}

.project-showcase-content {
    min-width: 0;
}

.project-showcase-heading {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 2rem;
}

.project-showcase-heading .project-type {
    display: block;
    margin-bottom: 0.7rem;
}

.project-showcase-heading h3 {
    max-width: 700px;
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    line-height: 1.05;
    letter-spacing: -0.05em;
}

.project-github {
    flex-shrink: 0;
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 700;
    transition: color var(--transition-fast);
}

.project-github:hover {
    color: var(--primary);
}


/* =========================================================
   PROJECT DESCRIPTION
   ========================================================= */

.project-showcase-description {
    max-width: 760px;
    margin: 1.75rem 0 0;
    color: var(--text-soft);
    font-size: 1rem;
    line-height: 1.85;
}


/* =========================================================
   PROJECT FEATURES
   ========================================================= */

.project-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    margin-top: 2.5rem;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--border);
}

.project-features>div {
    min-height: 150px;
    padding: 1.25rem;
    background: var(--surface);
}

.project-features>div>span {
    color: var(--primary);
    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;
    font-size: 0.65rem;
}

.project-features strong {
    display: block;
    margin-top: 1.25rem;
    font-size: 0.9rem;
}

.project-features p {
    margin: 0.5rem 0 0;
    color: var(--text-muted);
    font-size: 0.78rem;
    line-height: 1.65;
}


/* =========================================================
   PROJECT TECH
   ========================================================= */

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 1.5rem;
}

.project-tech span {
    padding: 0.4rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
}

.project-button {
    margin-top: 1.75rem;
}


/* =========================================================
   PROJECT FOCUS
   ========================================================= */

.project-focus-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.project-focus-card {
    min-height: 270px;
    padding: 1.6rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast);
}

.project-focus-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-light);
    background: var(--surface-hover);
}

.project-focus-card>span {
    color: var(--primary);
    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;
    font-size: 0.7rem;
}

.project-focus-card h3 {
    margin: 3.5rem 0 1rem;
    font-size: 1.1rem;
    letter-spacing: -0.025em;
}

.project-focus-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.75;
}


/* =========================================================
   GITHUB SECTION
   ========================================================= */

.github-section {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 3rem;
    max-width: 1000px;
}

.github-section h2 {
    max-width: 650px;
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.3rem);
    line-height: 1.05;
    letter-spacing: -0.05em;
}

.github-section h2 span {
    color: var(--text-muted);
}

.github-section p:last-child {
    max-width: 600px;
    margin: 1.25rem 0 0;
    color: var(--text-muted);
    line-height: 1.8;
}


/* =========================================================
   PROJECT DETAIL
   ========================================================= */

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 36px;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--text);
}

.project-detail-hero {
    padding-bottom: 90px;
}

.project-detail-meta {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 22px;
}

.project-detail-meta .project-type {
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.project-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.project-detail-hero h1 {
    max-width: 900px;
}

.project-detail-hero h1 span {
    display: block;
    color: var(--text-muted);
}

.project-detail-grid {
    display: grid;
    grid-template-columns:
        minmax(0, 1.5fr) minmax(280px, 0.7fr);
    gap: 70px;
    align-items: start;
}

.project-detail-content {
    max-width: 720px;
}

.project-detail-content p {
    margin: 0 0 22px;
    color: var(--text-soft);
    font-size: 1.05rem;
    line-height: 1.85;
}

.project-fact-card {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
}

.project-fact {
    display: flex;
    flex-direction: column;
    gap: 7px;
    padding: 20px 22px;
    border-bottom: 1px solid var(--border);
}

.project-fact:last-child {
    border-bottom: 0;
}

.project-fact span {
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.project-fact strong {
    color: var(--text);
    font-size: 0.95rem;
}


/* =========================================================
   PROJECT DETAIL PROBLEM
   ========================================================= */

.project-problem {
    display: grid;
    grid-template-columns: 70px minmax(0, 1fr);
    gap: 28px;
    max-width: 900px;
    padding: 30px 0;
    border-top: 1px solid var(--border);
}

.project-problem:last-child {
    border-bottom: 1px solid var(--border);
}

.project-problem-marker {
    color: var(--primary);
    font-family: monospace;
    font-size: 0.85rem;
}

.project-problem h3,
.project-solution-card h3,
.technical-content h3,
.lesson-card h3 {
    margin: 0 0 10px;
    color: var(--text);
    font-size: 1.1rem;
}

.project-problem p,
.project-solution-card p,
.technical-content p,
.lesson-card p {
    color: var(--text-muted);
    line-height: 1.75;
}


/* =========================================================
   PROJECT DETAIL SOLUTION
   ========================================================= */

.project-solution-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.project-solution-card {
    position: relative;
    padding: 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    transition:
        border-color var(--transition-fast),
        transform var(--transition-fast);
}

.project-solution-card:hover {
    border-color: var(--border-light);
    transform: translateY(-3px);
}

.project-card-number {
    display: block;
    margin-bottom: 35px;
    color: var(--primary);
    font-family: monospace;
    font-size: 0.8rem;
}


/* =========================================================
   TECHNICAL DESIGN
   ========================================================= */

.technical-layout {
    display: grid;
    grid-template-columns:
        minmax(0, 1fr) minmax(400px, 0.9fr);
    gap: 70px;
    align-items: start;
}

.technical-content {
    min-width: 0;
}

.technical-content h3 {
    margin-top: 30px;
}

.technical-content h3:first-child {
    margin-top: 0;
}

.technical-content p {
    max-width: 650px;
}

.technical-code {
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.25);
}


/* =========================================================
   PROJECT LESSONS
   ========================================================= */

.lessons-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.lesson-card {
    padding: 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
}

.lesson-card>span {
    display: block;
    margin-bottom: 40px;
    color: var(--primary);
    font-family: monospace;
    font-size: 0.8rem;
}


/* =========================================================
   PROJECT LINKS
   ========================================================= */

.project-links-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    padding: 42px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
}

.project-links-box h2 {
    margin: 10px 0;
    font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.project-links-box h2 span {
    color: var(--primary);
}

.project-links-box p {
    max-width: 600px;
    color: var(--text-muted);
    line-height: 1.7;
}


/* =========================================================
   CONTACT
   ========================================================= */

.contact-hero {
    padding-bottom: 80px;
}

.contact-hero h1 {
    max-width: 850px;
}

.contact-hero h1 span {
    color: var(--primary);
}

.contact-layout {
    display: grid;
    grid-template-columns:
        minmax(0, 1.4fr) minmax(300px, 0.7fr);
    gap: 70px;
    align-items: start;
}

.contact-main .section-header {
    margin-bottom: 35px;
}

.contact-links {
    border-top: 1px solid var(--border);
}

.contact-link {
    position: relative;
    display: grid;
    grid-template-columns: 100px minmax(0, 1fr) auto;
    align-items: center;
    gap: 25px;
    padding: 25px 0;
    border-bottom: 1px solid var(--border);
    transition:
        padding var(--transition-fast),
        color var(--transition-fast);
}

.contact-link:hover {
    padding-right: 8px;
    padding-left: 8px;
}

.contact-link-label {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.contact-link-value {
    min-width: 0;
    overflow: hidden;
    color: var(--text);
    font-size: 1rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.contact-link-arrow {
    color: var(--primary);
    font-size: 1.2rem;
}

.contact-availability {
    padding: 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
}

.contact-availability-marker {
    display: block;
    margin-bottom: 25px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.availability-status {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    color: var(--text);
}

.contact-availability>p {
    margin: 0 0 30px;
    color: var(--text-muted);
    line-height: 1.75;
}

.availability-focus {
    padding-top: 22px;
    border-top: 1px solid var(--border);
}

.availability-focus>span {
    display: block;
    margin-bottom: 15px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.availability-focus ul {
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.availability-focus li {
    position: relative;
    padding-left: 17px;
    color: var(--text-soft);
    font-size: 0.9rem;
}

.availability-focus li::before {
    content: "";
    position: absolute;
    top: 0.55em;
    left: 0;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--primary);
}

.contact-focus-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.contact-focus-card {
    min-height: 230px;
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
}

.contact-focus-card>span {
    display: block;
    margin-bottom: 40px;
    color: var(--primary);
    font-family: monospace;
    font-size: 0.8rem;
}

.contact-focus-card h3 {
    margin: 0 0 12px;
    color: var(--text);
    font-size: 1.05rem;
}

.contact-focus-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
}


/* =========================================================
   RESPONSIVE — 1000px
   ========================================================= */

@media (max-width: 1000px) {

    .hero-layout {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .hero-terminal {
        max-width: 650px;
    }

    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-preview {
        grid-template-columns: 180px minmax(0, 1fr);
        gap: 3rem;
    }

    .experience-area-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .performance-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .project-focus-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-detail-grid,
    .technical-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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


/* =========================================================
   RESPONSIVE — 950px
   ========================================================= */

@media (max-width: 950px) {

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 45px;
    }

    .contact-focus-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


/* =========================================================
   RESPONSIVE — 760px
   ========================================================= */

@media (max-width: 760px) {

    .navbar {
        min-height: 68px;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        position: absolute;
        top: calc(100% + 1px);
        left: 0;
        right: 0;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 0.75rem 1rem 1rem;
        border-bottom: 1px solid var(--border);
        background: rgba(8, 11, 18, 0.98);
    }

    .nav-links.is-open {
        display: flex;
    }

    .nav-links a {
        padding: 0.75rem;
        border-radius: var(--radius-sm);
    }

    .nav-links a:hover {
        background: var(--surface);
    }

    .nav-links a::after {
        display: none;
    }

    .hero {
        padding: 6rem 0 5rem;
    }

    .hero h1 {
        font-size: clamp(2.7rem, 12vw, 4.2rem);
    }

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

    .hero-terminal {
        display: none;
    }

    .section {
        padding: 5rem 0;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .section-header-row {
        align-items: start;
        flex-direction: column;
    }

    .about-preview {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .about-number strong {
        font-size: 4rem;
    }

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

    .expertise-card {
        min-height: 280px;
    }

    .experience-item {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

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

    .project-card {
        min-height: 360px;
    }

    .cta-box {
        align-items: start;
        flex-direction: column;
        padding: 2rem;
    }

    .footer-content {
        min-height: auto;
        padding: 1.5rem 0;
        align-items: start;
        flex-direction: column;
        gap: 1rem;
    }

    /* About */

    .page-hero {
        padding: 5rem 0 4.5rem;
    }

    .page-hero h1 {
        font-size: clamp(2.8rem, 12vw, 4.3rem);
    }

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

    .about-story {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

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

    .focus-card {
        min-height: 250px;
    }

    .stack-group {
        grid-template-columns: 1fr;
        gap: 0.9rem;
    }

    .approach-item {
        grid-template-columns: 45px minmax(0, 1fr);
        gap: 1rem;
    }

    .education-card {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1.5rem;
    }

    /* Experience */

    .experience-block {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 2.5rem 0;
    }

    .experience-sidebar {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .experience-heading {
        flex-direction: column;
        gap: 1rem;
    }

    .experience-badge {
        align-self: flex-start;
    }

    .experience-area-grid {
        grid-template-columns: 1fr;
    }

    .experience-area-card {
        min-height: 230px;
    }

    .performance-principles {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 1.25rem;
    }

    .collaboration-box {
        padding: 1.5rem;
    }

    /* Projects */

    .project-showcase {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1.5rem;
    }

    .project-showcase-heading {
        flex-direction: column;
        gap: 1rem;
    }

    .project-features {
        grid-template-columns: 1fr;
    }

    .project-features>div {
        min-height: auto;
    }

    .project-focus-grid {
        grid-template-columns: 1fr;
    }

    .project-focus-card {
        min-height: 220px;
    }

    .github-section {
        align-items: start;
        flex-direction: column;
    }

    /* Project detail */

    .project-solution-grid {
        grid-template-columns: 1fr;
    }

    .project-problem {
        grid-template-columns: 45px minmax(0, 1fr);
        gap: 15px;
    }

    .project-detail-hero {
        padding-bottom: 65px;
    }

    .project-detail-meta {
        flex-wrap: wrap;
    }

    .technical-code {
        border-radius: var(--radius-md);
    }

    .project-links-box {
        padding: 28px;
        flex-direction: column;
        align-items: flex-start;
    }

    /* Contact */

    .contact-focus-grid {
        grid-template-columns: 1fr;
    }

    .contact-link {
        grid-template-columns: 80px minmax(0, 1fr) auto;
        gap: 15px;
    }

    .contact-link-value {
        font-size: 0.9rem;
    }

    .contact-availability {
        padding: 25px;
    }
}


/* =========================================================
   RESPONSIVE — 480px
   ========================================================= */

@media (max-width: 480px) {

    .container {
        width: min(calc(100% - 1.5rem),
                var(--container-width));
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .button {
        width: 100%;
    }

    .hero-stack {
        gap: 0.4rem;
    }

    .hero-stack span {
        font-size: 0.68rem;
    }

    .project-card h3 {
        margin-top: 3rem;
    }

    .cta-box {
        border-radius: var(--radius-md);
    }

    /* Project detail */

    .project-detail-content p {
        font-size: 0.98rem;
    }

    .project-solution-card,
    .lesson-card {
        padding: 24px;
    }

    .project-card-number,
    .lesson-card>span {
        margin-bottom: 28px;
    }

    .project-links-box .hero-actions {
        width: 100%;
        flex-direction: column;
    }

    .project-links-box .button {
        width: 100%;
        justify-content: center;
    }

    /* Contact */

    .contact-link {
        grid-template-columns: 1fr auto;
        gap: 8px;
    }

    .contact-link-label {
        grid-column: 1 / -1;
    }

    .contact-link-value {
        white-space: normal;
        overflow-wrap: anywhere;
    }

    .contact-focus-card {
        min-height: auto;
    }
}


/* =========================================================
   REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}