/* Shared landing and conventional portfolio styles. */
:root {
    --ink: #17191f;
    --muted: #686d78;
    --paper: #f5f4ef;
    --surface: #fff;
    --line: #dad9d2;
    --accent: #3157d5;
    --terminal: #9ece6a;
    --terminal-bg: #0c0e14;
    --sans: Inter, system-ui, sans-serif;
    --mono: "IBM Plex Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { color-scheme: light; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }

.eyebrow { margin: 0 0 1rem; color: var(--accent); font: 500 .75rem/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; }

/* Temporary interface chooser */
.landing-page { min-height: 100vh; display: grid; place-items: center; padding: 2rem; background: linear-gradient(135deg, var(--terminal-bg) 0 50%, var(--paper) 50% 100%); }
.landing { width: min(960px, 100%); padding: clamp(2rem, 6vw, 5rem); border: 1px solid rgba(255,255,255,.18); background: rgba(245,244,239,.96); box-shadow: 0 24px 80px rgba(0,0,0,.28); }
.landing h1 { max-width: 700px; margin: 0; font-size: clamp(2.4rem, 7vw, 5rem); line-height: .98; letter-spacing: -.055em; }
.landing-intro { margin: 1.25rem 0 3rem; color: var(--muted); font-size: 1.05rem; }
.interface-options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.interface-card { min-height: 270px; display: flex; flex-direction: column; padding: 2rem; border: 1px solid var(--line); text-decoration: none; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.interface-card:hover, .interface-card:focus-visible { transform: translateY(-4px); box-shadow: 0 18px 35px rgba(23,25,31,.12); }
.interface-card--terminal { background: var(--terminal-bg); color: #d8deeb; border-color: var(--terminal-bg); font-family: var(--mono); }
.interface-card--terminal:hover, .interface-card--terminal:focus-visible { border-color: var(--terminal); }
.interface-card--portfolio { background: var(--surface); }
.interface-card--portfolio:hover, .interface-card--portfolio:focus-visible { border-color: var(--accent); }
.interface-card__icon { min-height: 4rem; color: var(--accent); font: 500 2rem/1 var(--mono); }
.interface-card--terminal .interface-card__icon { color: var(--terminal); }
.interface-card__title { font-size: 1.6rem; font-weight: 700; }
.interface-card__description { max-width: 28ch; margin-top: .75rem; color: var(--muted); line-height: 1.6; }
.interface-card--terminal .interface-card__description { color: #8e97aa; }
.interface-card__action { margin-top: auto; padding-top: 2rem; font-size: .85rem; font-weight: 600; }

/* Portfolio shell */
.wip-banner { display: grid; min-height: 42px; place-items: center; padding: .45rem 1.5rem; background: repeating-linear-gradient(135deg, #ffd500 0 16px, #000 16px 32px); color: #000; text-align: center; }
.wip-banner p { margin: 0; padding: .25rem .7rem; border: 2px solid #000; background: #ffd500; font: .8rem/1.4 var(--mono); }
.site-header, .site-main, .site-footer { width: min(1180px, calc(100% - 3rem)); margin-inline: auto; }
.site-header { min-height: 84px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { font-size: 1.15rem; font-weight: 700; text-decoration: none; }
.brand__cursor { color: var(--accent); }
.site-nav { display: flex; align-items: center; gap: 1.75rem; font-size: .9rem; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--ink); }
.site-nav .terminal-link { padding: .65rem .9rem; color: #d8deeb; background: var(--terminal-bg); font-family: var(--mono); }
.site-main { min-height: calc(100vh - 212px); }
.nav-toggle { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.nav-toggle-label { display: none; }
.nav-toggle:focus-visible + .nav-toggle-label { outline: 2px solid var(--accent); outline-offset: 2px; }
.site-footer { min-height: 86px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); color: var(--muted); font: .75rem var(--mono); }

.hero { padding: clamp(5rem, 12vw, 10rem) 0 5rem; }
.hero h1 { max-width: 900px; margin: 0; font-size: clamp(3.2rem, 8vw, 7rem); line-height: .9; letter-spacing: -.065em; }
.hero__intro { max-width: 680px; margin: 2rem 0 0 auto; color: var(--muted); font-size: clamp(1rem, 2vw, 1.25rem); line-height: 1.65; }
.category-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin-bottom: 7rem; background: var(--line); border: 1px solid var(--line); }
.category-card { min-height: 330px; display: flex; flex-direction: column; padding: 1.75rem; background: var(--surface); text-decoration: none; transition: background .2s ease; }
.category-card:hover { background: #eceeff; }
.category-card__count { color: var(--muted); font: .75rem var(--mono); }
.category-card h2 { margin: 3rem 0 1rem; font-size: clamp(1.5rem, 3vw, 2.25rem); letter-spacing: -.04em; }
.category-card p { color: var(--muted); line-height: 1.55; }
.category-card__action { margin-top: auto; font-size: .85rem; font-weight: 600; }

.page-heading { padding: 5rem 0 3rem; border-bottom: 1px solid var(--line); }
.page-heading h1 { margin: 0; font-size: clamp(3rem, 8vw, 6rem); letter-spacing: -.06em; }
.page-heading > p:last-child { color: var(--muted); }
.back-link { display: inline-block; margin-bottom: 3rem; color: var(--muted); font-size: .85rem; text-decoration: none; }
.entry-grid { padding: 2rem 0 7rem; }
.entry-card { display: grid; grid-template-columns: minmax(0, 1fr); padding: 2rem 0; border-bottom: 1px solid var(--line); }
.entry-card__cover { width: 100%; max-height: 420px; object-fit: cover; margin-bottom: 1.5rem; }
.entry-card__meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: .75rem; }
.entry-card__meta code { font-family: var(--mono); }
.entry-card h2 { margin: 1.25rem 0 .75rem; font-size: clamp(1.7rem, 4vw, 2.8rem); letter-spacing: -.04em; }
.entry-card h2 a, .read-link { text-decoration: none; }
.entry-card p { max-width: 760px; color: var(--muted); line-height: 1.65; }
.read-link { display: inline-block; margin-top: 1rem; font-size: .85rem; font-weight: 600; }
.tag-list { display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; list-style: none; }
.tag-list li, .detail__meta span { padding: .35rem .6rem; border: 1px solid var(--line); font: .7rem var(--mono); }
.empty-state { margin: 4rem 0 8rem; padding: 4rem; border: 1px dashed var(--line); text-align: center; }
.empty-state code { color: var(--accent); }
.empty-state p { color: var(--muted); }

.detail { max-width: 860px; margin: 0 auto; padding: 5rem 0 8rem; }
.detail__header h1 { margin: 0; font-size: clamp(3rem, 8vw, 6rem); line-height: .98; letter-spacing: -.06em; }
.detail__meta { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.5rem; }
.detail__cover { width: 100%; margin: 3rem 0; }
.prose { margin-top: 3.5rem; font-size: 1.05rem; line-height: 1.8; }
.prose h2, .prose h3 { margin-top: 2.5em; letter-spacing: -.03em; }
.prose pre { overflow-x: auto; padding: 1.25rem; color: #d8deeb; background: var(--terminal-bg); }
.prose code { font-family: var(--mono); }
.prose img { max-width: 100%; height: auto; }
.prose a { color: var(--accent); }

@media (max-width: 760px) {
    .landing-page { padding: 1rem; background: var(--paper); }
    .landing { padding: 2rem 1.25rem; box-shadow: none; }
    .interface-options, .category-grid { grid-template-columns: 1fr; }
    .interface-card { min-height: 230px; }
    .site-header { position: relative; flex-wrap: wrap; align-items: center; padding: 1.25rem 0; }
    .nav-toggle-label { display: flex; flex-direction: column; justify-content: center; gap: 5px; width: 32px; height: 32px; cursor: pointer; }
    .nav-toggle-label span { display: block; height: 2px; background: var(--ink); }
    .site-nav { display: none; flex-basis: 100%; flex-direction: column; align-items: flex-start; gap: 1rem; margin-top: 1.25rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
    .nav-toggle:checked ~ .site-nav { display: flex; }
    .hero { padding-top: 4rem; }
    .category-card { min-height: 250px; }
    .page-heading { padding-top: 3rem; }
    .empty-state { padding: 2rem 1rem; }
    .site-footer { align-items: flex-start; flex-direction: column; justify-content: center; gap: .5rem; }
}

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