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

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: #000;
    color: #fff;
    font-family:
        Inter,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    line-height: 1.6;
}

a {
    color: inherit;
}

button {
    font: inherit;
}


/* =============================================================
   GLOBAL
============================================================= */

:root {
    --background: #000;
    --foreground: #fff;
    --muted: #999;
    --subtle: #666;
    --border: #292929;
    --border-light: #444;
    --panel: #080808;

    --max-width: 1100px;
}

.container {
    width: min(
        calc(100% - 40px),
        var(--max-width)
    );

    margin-inline: auto;
}

.section {
    padding: 110px 0;
}

.section-dark {
    background: #050505;
}

p {
    color: #c7c7c7;
    margin-top: 0;
}

.lead {
    color: #fff;
    font-size: 1.3rem;
    line-height: 1.6;
}

strong {
    color: #fff;
}


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

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;

    border-bottom: 1px solid var(--border);

    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(10px);
}

.header-inner {
    min-height: 72px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.site-logo {
    text-decoration: none;

    font-weight: 800;
    letter-spacing: 0.16em;
}

.site-nav {
    display: flex;
    gap: 18px;
}

.site-nav a {
    color: var(--muted);
    text-decoration: none;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 0.8rem;
}

.site-nav a:hover {
    color: #fff;
}


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

.hero {
    min-height: 80vh;

    display: flex;
    align-items: center;

    padding: 120px 0;
}

.eyebrow {
    margin-bottom: 18px;

    color: var(--muted);

    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.3em;
}

.hero h1 {
    margin: 0;

    font-size: clamp(4rem, 13vw, 9rem);
    line-height: 0.85;
    letter-spacing: -0.07em;
    font-weight: 900;
}

.hero-meta {
    margin-top: 35px;

    color: #aaa;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    letter-spacing: 0.15em;
    font-size: 0.9rem;
}

.hero-line {
    width: 100%;
    height: 1px;

    margin: 35px 0;
    background: var(--border);
}

.hero-intro {
    max-width: 600px;

    color: #fff;
    font-size: clamp(1.2rem, 3vw, 1.8rem);
}


/* =============================================================
   SECTION HEADINGS
============================================================= */

.section-heading {
    display: flex;
    align-items: baseline;
    gap: 20px;

    margin-bottom: 60px;

    border-bottom: 1px solid var(--border);
    padding-bottom: 20px;
}

.section-number {
    color: var(--subtle);

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 0.8rem;
}

.section-heading h2 {
    margin: 0;

    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: -0.04em;
}


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

.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 80px;
}

.about-main p {
    max-width: 680px;
}

.info-block {
    border-top: 1px solid var(--border);
}

.info-row {
    display: flex;
    flex-direction: column;
    gap: 3px;

    padding: 18px 0;

    border-bottom: 1px solid var(--border);
}

.info-row span {
    color: var(--subtle);

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 0.7rem;
    letter-spacing: 0.15em;
}


/* =============================================================
   SKILLS
============================================================= */

.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;

    background: var(--border);
    border: 1px solid var(--border);
}

.skill-block {
    padding: 35px;

    background: var(--panel);
}

.skill-wide {
    grid-column: 1 / -1;
}

.block-label {
    margin-bottom: 25px;

    color: var(--subtle);

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 0.7rem;
    letter-spacing: 0.2em;
}

.skill-list {
    padding: 0;
    margin: 0;

    list-style: none;
}

.skill-list li {
    display: flex;
    justify-content: space-between;
    gap: 20px;

    padding: 15px 0;

    border-bottom: 1px solid var(--border);
}

.skill-list li:last-child {
    border-bottom: 0;
}

.skill-list span {
    color: var(--muted);
    text-align: right;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;

    padding: 0;
    margin: 0;

    list-style: none;
}

.tag-list li {
    padding: 8px 12px;

    border: 1px solid var(--border-light);

    color: #ddd;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 0.8rem;
}

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

    background: var(--border);
}

.project-item {
    display: flex;
    flex-direction: column;
    gap: 5px;

    padding: 25px;

    background: #000;
}

.project-item span {
    color: var(--muted);
    font-size: 0.9rem;
}


/* =============================================================
   PIANO
============================================================= */

.piano-intro {
    max-width: 750px;
    margin-bottom: 80px;
}

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

.timeline-item {
    display: grid;
    grid-template-columns: 70px 1fr;
    gap: 30px;

    padding: 35px 0;

    border-bottom: 1px solid var(--border);
}

.timeline-marker {
    color: var(--subtle);

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;
}

.timeline-item h3 {
    margin: 0 0 10px;

    font-size: 1.6rem;
}

.media-section {
    margin-top: 100px;
}

.subheading {
    margin-bottom: 25px;

    color: var(--subtle);

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 0.75rem;
    letter-spacing: 0.2em;
}

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

.recording {
    padding: 25px 0;

    border-bottom: 1px solid var(--border);
}

.recording-info {
    display: flex;
    align-items: center;
    gap: 20px;

    margin-bottom: 20px;
}

.recording-number {
    color: var(--subtle);

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;
}

.recording h3 {
    margin: 0;
}

.recording p {
    margin: 0;
    color: var(--muted);
}

.recording audio {
    width: 100%;
}


/* =============================================================
   ENUX
============================================================= */

.enux-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
}

.enux-title {
    max-width: 650px;

    margin: 0 0 25px;

    font-size: clamp(2.5rem, 6vw, 5rem);
    line-height: 0.95;
    letter-spacing: -0.05em;
}

.button {
    display: inline-block;

    margin-top: 25px;
    padding: 13px 20px;

    border: 1px solid #fff;

    background: #fff;
    color: #000;

    text-decoration: none;

    font-weight: 700;
    letter-spacing: 0.1em;
}

.button:hover {
    background: #000;
    color: #fff;
}


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

.terminal {
    border: 1px solid var(--border-light);

    background: #000;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;
}

.terminal-header {
    display: flex;
    justify-content: space-between;

    padding: 12px 15px;

    border-bottom: 1px solid var(--border);

    color: var(--muted);

    font-size: 0.7rem;
    letter-spacing: 0.15em;
}

.terminal-body {
    padding: 25px;

    color: #bbb;

    font-size: 0.85rem;
    overflow-x: auto;
}

.terminal-body p {
    margin: 0;

    font-family: inherit;
}

.prompt {
    color: #fff;
}


/* =============================================================
   COMMAND EXPLORER
============================================================= */

.commands-hero {
    max-width: 700px;
    margin-bottom: 60px;
}

.command-kicker {
    margin-bottom: 10px;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: clamp(1.2rem, 3vw, 2rem);
    font-weight: 800;
}

.version-selector {
    display: flex;

    border-bottom: 1px solid var(--border);
    margin-bottom: 45px;
}

.version-button {
    padding: 15px 25px;

    border: 0;
    border-bottom: 2px solid transparent;

    background: transparent;
    color: var(--muted);

    cursor: pointer;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 0.8rem;
}

.version-button:hover {
    color: #fff;
}

.version-button.active {
    border-bottom-color: #fff;
    color: #fff;
}

.command-version {
    display: none;
}

.command-version.active {
    display: block;
}

.version-heading {
    display: flex;
    justify-content: space-between;
    align-items: baseline;

    margin-bottom: 25px;
}

.version-heading > span {
    font-size: 1.5rem;
    font-weight: 800;
}

.version-heading small {
    color: var(--subtle);

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 0.65rem;
}

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

    background: var(--border);
    border: 1px solid var(--border);
}

.command-card {
    padding: 30px;

    background: #050505;
}

.command-header {
    display: flex;
    align-items: center;
    gap: 10px;

    margin-bottom: 20px;
}

.command-prefix {
    color: var(--subtle);

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;
}

.command-header h3 {
    margin: 0;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 1.1rem;
}

.command-card p {
    min-height: 75px;
    color: var(--muted);
}

.command-expand {
    padding: 0;

    border: 0;

    background: none;
    color: #fff;

    cursor: pointer;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 0.7rem;
    letter-spacing: 0.1em;
}

.command-expand:hover {
    text-decoration: underline;
}

.command-output {
    display: none;

    margin-top: 25px;

    border-top: 1px solid var(--border);
    padding-top: 20px;
}

.command-card.open .command-output {
    display: block;
}

.command-output pre {
    margin: 0;

    overflow-x: auto;

    color: #bbb;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 0.75rem;
}


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

.links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;

    background: var(--border);
    border: 1px solid var(--border);
}

.link-card {
    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 30px;

    background: #000;

    text-decoration: none;
}

.link-card:hover {
    background: #111;
}

.link-card strong {
    font-size: 1.5rem;
}


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

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

    padding: 50px 0;

    color: var(--muted);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 50px;
}

.footer-inner p {
    margin: 5px 0;

    color: var(--subtle);

    font-size: 0.8rem;
}


/* =============================================================
   MOBILE
============================================================= */

@media (max-width: 800px) {

    .site-nav {
        display: none;
    }

    .section {
        padding: 80px 0;
    }

    .about-grid,
    .enux-grid {
        grid-template-columns: 1fr;
        gap: 45px;
    }

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

    .skill-wide {
        grid-column: auto;
    }

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

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

    .version-heading {
        flex-direction: column;
        gap: 8px;
    }

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

    .footer-inner {
        flex-direction: column;
    }
}


@media (max-width: 520px) {

    .container {
        width: min(
            calc(100% - 28px),
            var(--max-width)
        );
    }

    .hero {
        min-height: 70vh;
        padding: 90px 0;
    }

    .hero h1 {
        font-size: clamp(3.5rem, 18vw, 6rem);
    }

    .section-heading {
        gap: 12px;
    }

    .section-heading h2 {
        font-size: 1.7rem;
    }

    .skill-block,
    .command-card {
        padding: 25px 20px;
    }

    .skill-list li {
        flex-direction: column;
        gap: 3px;
    }

    .skill-list span {
        text-align: left;
    }

    .timeline-item {
        grid-template-columns: 40px 1fr;
        gap: 15px;
    }

}