/* ============================================================
   Matthew Rynbrand — portfolio
   "Corporate cyberpunk," subdued: warm near-black, one rust
   accent, hairline poster frames, restrained motion.
   Plain CSS, no framework.
   ============================================================ */

:root {
    --bg: #100e0c;
    --panel: #17140f;
    --ink: #ece5d8;      /* warm off-white — primary text */
    --muted: #8f877a;    /* warm gray — secondary */
    --faint: #4c463c;    /* labels, tertiary */
    --line: rgba(236, 229, 216, 0.12);
    --line-strong: rgba(236, 229, 216, 0.22);
    --grid: rgba(236, 229, 216, 0.045); /* barely-there page texture */

    --accent: #c8502e;   /* rust */
    --accent-ink: #f0dccf; /* text/ink that sits on the accent */
    --accent-soft: rgba(200, 80, 46, 0.12);

    --ok: #7fa06b;
    --warn: #c9973f;

    --font-display: "Archivo", system-ui, sans-serif;
    --font-mono: "Space Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

    --maxw: 1080px;
    --pad: clamp(1.1rem, 4vw, 2.4rem);
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
}

/* clip (not hidden) prevents horizontal scroll without creating a
   scroll container, so position: sticky keeps working */
html { overflow-x: clip; }

body {
    margin: 0;
    overflow-x: clip;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-display);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    /* faint film-grain-free tech grid, very low contrast */
    background-image:
        linear-gradient(var(--grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 72px 72px, 72px 72px;
    background-position: center top;
}
/* keep the grid whisper-quiet */
body { background-blend-mode: normal; }
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(120% 90% at 50% 0%, transparent 55%, var(--bg) 100%);
    pointer-events: none;
    z-index: 0;
}
body > * { position: relative; z-index: 1; }

.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }

a { color: inherit; }

.dim { color: var(--faint); }
.ok { color: var(--ok); }
.warn { color: var(--warn); }

.skip-link {
    position: absolute; left: -999px; top: 0;
    background: var(--accent); color: var(--accent-ink);
    padding: 0.6rem 1rem; z-index: 100; font-family: var(--font-mono);
}
.skip-link:focus { left: 0; }

/* ---------- shared hairline frame ---------- */
.frame {
    position: relative;
    border: 1px solid var(--line-strong);
}
.frame::after { /* inset double-line, poster style */
    content: "";
    position: absolute;
    inset: 6px;
    border: 1px solid var(--line);
    pointer-events: none;
}

/* ---------- system bar ---------- */
.bar {
    position: sticky; top: 0; z-index: 30;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
}
.bar__inner {
    display: flex; align-items: center; gap: 1rem;
    height: 54px;
    font-family: var(--font-mono); font-size: 0.78rem;
    letter-spacing: 0.04em;
}
.bar__brand {
    display: inline-flex; align-items: center; gap: 0.55rem;
    text-decoration: none; font-weight: 700; letter-spacing: 0.08em;
}
.squares { display: inline-flex; gap: 3px; }
.squares i { width: 7px; height: 7px; background: var(--accent); display: block; }
.squares i:nth-child(2) { opacity: 0.6; }
.squares i:nth-child(3) { opacity: 0.3; }

.bar__nav { margin-left: auto; display: flex; gap: clamp(0.9rem, 3vw, 1.8rem); }
.bar__nav a { text-decoration: none; color: var(--muted); transition: color 0.2s; }
.bar__nav a:hover { color: var(--ink); }
.bar__nav a[aria-current="page"],
.bar__nav a[aria-current="page"]:hover { color: var(--accent); }

.bar__meta { display: flex; align-items: center; gap: 0.9rem; }
.clock { color: var(--muted); font-variant-numeric: tabular-nums; letter-spacing: 0.06em; }

@media (max-width: 720px) {
    .bar__nav { display: none; }
}

/* ---------- kicker / mono labels ---------- */
.kicker, .mono-label, .tick {
    font-family: var(--font-mono);
    font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase;
}
.tick { color: var(--accent); }
.mono-label { color: var(--accent); margin: 1.8rem 0 0.7rem; }
.kicker { margin: 0 0 1.6rem; display: flex; gap: 0.6rem; flex-wrap: wrap; }

/* ---------- hero ---------- */
.hero { padding-block: clamp(2rem, 6vw, 4rem); }
.hero__frame {
    padding: clamp(1.6rem, 5vw, 3.5rem);
    display: grid;
    grid-template-columns: minmax(0, 1fr) clamp(250px, 34%, 340px);
    gap: clamp(1.5rem, 5vw, 4rem);
    align-items: end;
    overflow: hidden;
    /* solid fill so the page grid never shows through the frame */
    background: linear-gradient(155deg, var(--bg) 50%, var(--panel) 100%);
}
.hero__grid {
    position: absolute; inset: 0; z-index: 0; pointer-events: none;
    opacity: 0.7;
    background:
        repeating-linear-gradient(0deg, var(--line) 0 1px, transparent 1px 40px),
        repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 40px);
    background-position: right bottom;
    /* confine the grid to a soft bottom-right corner; fades out well
       before the frame border so lines never collide with it */
    -webkit-mask-image: radial-gradient(85% 80% at 100% 100%, #000 0%, transparent 62%);
            mask-image: radial-gradient(85% 80% at 100% 100%, #000 0%, transparent 62%);
}
.hero__body, .hero .index { position: relative; z-index: 1; }

@media (max-width: 800px) {
    .hero__frame { grid-template-columns: 1fr; align-items: start; }
    .hero .index { margin-top: 1.6rem; align-self: stretch; }
}

.hero__name {
    font-weight: 900;
    font-size: clamp(3rem, 11vw, 7.5rem);
    line-height: 0.9;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    margin: 0 0 1.2rem;
}
.hero__role {
    font-family: var(--font-mono);
    font-size: clamp(0.95rem, 2vw, 1.15rem);
    letter-spacing: 0.02em;
    margin: 0 0 1.4rem;
    display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap;
}
.globe { color: var(--accent); }
.hero__blurb {
    color: var(--muted);
    max-width: 42ch;
    margin: 0 0 2rem;
    font-size: 1.02rem;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.7rem; }

/* buttons */
.btn {
    font-family: var(--font-mono);
    font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase;
    text-decoration: none;
    padding: 0.72rem 1.3rem;
    border: 1px solid var(--line-strong);
    transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.12s;
}
.btn:active { transform: translateY(1px); }
.btn--solid { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn--solid:hover { background: transparent; color: var(--accent); }
.btn--line { color: var(--ink); }
.btn--line:hover { border-color: var(--accent); color: var(--accent); }

/* index list with dotted leaders */
.index { margin: 0; align-self: end; }
.index__row {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: baseline;
    gap: 0.6rem;
    padding: 0.55rem 0;
    border-bottom: 1px solid var(--line);
    font-family: var(--font-mono);
    font-size: 0.82rem;
}
.index__row:first-child { border-top: 1px solid var(--line); }
.index dt { color: var(--muted); letter-spacing: 0.06em; margin: 0; }
.index dd { margin: 0; text-align: right; letter-spacing: 0.02em; }
.leader { border-bottom: 1px dotted var(--faint); transform: translateY(-3px); }

/* ---------- section heads ---------- */
.section { padding-block: clamp(3rem, 8vw, 5.5rem); }
.head {
    display: flex; align-items: baseline; gap: 1rem;
    margin-bottom: 2.2rem;
}
.head__idx {
    font-family: var(--font-mono); color: var(--accent);
    font-size: 0.8rem; letter-spacing: 0.1em;
}
.head__title {
    font-weight: 700; font-size: clamp(1.5rem, 4vw, 2.1rem);
    letter-spacing: -0.01em; margin: 0; white-space: nowrap;
}
.rule { flex: 1; height: 1px; background: var(--line-strong); align-self: center; }
.head__note { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; }

/* ---------- work cards ---------- */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 1rem;
}
.card {
    padding: 1.5rem;
    display: flex; flex-direction: column; gap: 0.85rem;
    transition: border-color 0.25s, transform 0.25s, background 0.25s;
    background: var(--panel);
}
.card:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
    background: color-mix(in srgb, var(--panel) 80%, var(--accent-soft));
}
.card__top { display: flex; justify-content: space-between; align-items: center; }
.card__id {
    font-family: var(--font-mono); font-size: 0.75rem;
    letter-spacing: 0.1em; color: var(--accent);
}
.tag { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; }
.card__title { margin: 0; font-size: 1.25rem; font-weight: 700; letter-spacing: -0.01em; }
.card__role {
    margin: -0.4rem 0 0;
    font-family: var(--font-mono); font-size: 0.72rem;
    letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent);
}
.card__desc { margin: 0; color: var(--muted); font-size: 0.95rem; }
.card__link {
    font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.08em;
    text-transform: uppercase; text-decoration: none; color: var(--ink);
    align-self: flex-start; margin-top: auto; transition: color 0.2s;
}
.card:hover .card__link { color: var(--accent); }

/* whole-card link (e.g. featured whitepaper) */
a.card { text-decoration: none; }
.writing-list { display: grid; gap: 1rem; }
.head__note[href] { text-decoration: none; transition: color 0.2s; }
.head__note[href]:hover { color: var(--accent); }

/* chips */
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; list-style: none; padding: 0; margin: 0; }
.chips li {
    font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.05em;
    padding: 0.22rem 0.55rem; border: 1px solid var(--line);
    color: var(--muted);
}
.chips--lg li { font-size: 0.75rem; padding: 0.32rem 0.7rem; }

/* ---------- about / dossier ---------- */
.about {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: clamp(1.5rem, 5vw, 3rem);
    align-items: start;
}
@media (max-width: 760px) { .about { grid-template-columns: 1fr; } }

.about__card { padding: 1.6rem; background: var(--panel); }
.globe-lg { font-size: 3.2rem; color: var(--accent); line-height: 1; margin-bottom: 1rem; }
.fields { margin: 0; display: grid; gap: 0.9rem; }
.fields > div { display: grid; gap: 0.15rem; }
.fields dt {
    font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--faint);
}
.fields dd { margin: 0; font-size: 0.92rem; word-break: break-word; }
.fields a { text-decoration: none; border-bottom: 1px solid var(--line-strong); }
.fields a:hover { color: var(--accent); border-color: var(--accent); }

.about__body p { margin: 0 0 1rem; color: var(--muted); }
.about__body p.mono-label { color: var(--accent); }
.about__body > p:not(.mono-label) { max-width: 60ch; }

/* barcode motif */
.barcode {
    height: 34px; margin-top: 1.4rem;
    background: repeating-linear-gradient(90deg,
        var(--ink) 0 2px, transparent 2px 4px,
        var(--ink) 4px 5px, transparent 5px 9px,
        var(--ink) 9px 12px, transparent 12px 14px);
    opacity: 0.7;
}
.barcode--sm { display: inline-block; width: 90px; height: 20px; margin: 0; }

/* ---------- contact ---------- */
.contact {
    padding: clamp(1.8rem, 5vw, 3.2rem);
    background: var(--panel);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(1.5rem, 5vw, 3.5rem);
    align-items: center;
}
@media (max-width: 760px) { .contact { grid-template-columns: 1fr; } }

.contact__eyebrow {
    font-family: var(--font-mono); text-transform: uppercase;
    letter-spacing: 0.14em; font-size: 0.75rem; color: var(--accent);
    margin: 0 0 1.1rem;
}
.contact__headline {
    font-weight: 900; font-size: clamp(2rem, 5vw, 3.2rem);
    line-height: 0.95; letter-spacing: -0.02em; text-transform: uppercase;
    margin: 0;
}
.contact__lead { margin: 0 0 1.6rem; color: var(--muted); max-width: 42ch; }
.contact__email {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: clamp(1.1rem, 2.4vw, 1.6rem); letter-spacing: -0.01em;
    color: var(--accent); text-decoration: none;
    border-bottom: 1px solid var(--accent); padding-bottom: 0.25rem;
    transition: color 0.2s, border-color 0.2s;
}
.contact__email span { transition: transform 0.2s ease; }
.contact__email:hover { color: var(--ink); border-color: var(--ink); }
.contact__email:hover span { transform: translateX(4px); }
.contact__meta {
    margin: 1.6rem 0 0; font-family: var(--font-mono);
    font-size: 0.78rem; letter-spacing: 0.04em;
}

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); margin-top: 2rem; }
.foot__inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem; flex-wrap: wrap;
    padding-block: 1.6rem;
    font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.06em;
}
.foot__mark { font-weight: 700; letter-spacing: 0.1em; }
.foot__code { display: inline-flex; align-items: center; gap: 0.6rem; }

/* ---------- focus ---------- */
a:focus-visible, button:focus-visible {
    outline: 2px solid var(--accent); outline-offset: 3px;
}

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(12px); }
.reveal.in {
    opacity: 1; transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}
@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; }
}

/* ---------- 404 ---------- */
.notfound {
    max-width: var(--maxw); margin-inline: auto;
    padding: clamp(3rem, 12vw, 8rem) var(--pad);
    text-align: center;
}
.notfound__label {
    font-family: var(--font-mono); text-transform: uppercase;
    letter-spacing: 0.16em; font-size: 0.8rem; color: var(--accent);
    margin: 0 0 1.4rem;
}
.notfound__code {
    font-weight: 900; font-size: clamp(5rem, 22vw, 13rem);
    line-height: 0.9; letter-spacing: -0.04em; margin: 0;
}
.notfound__msg {
    color: var(--muted); font-size: 1.1rem; max-width: 46ch;
    margin: 1.4rem auto 2.4rem;
}
.notfound__actions { display: flex; gap: 0.7rem; justify-content: center; flex-wrap: wrap; }

/* footer social links */
.foot__social { display: flex; gap: 1.1rem; }
.foot__social a { color: var(--muted); text-decoration: none; transition: color 0.2s; }
.foot__social a:hover { color: var(--accent); }