/* ======================================================================
   SITE.CSS — "Signal" redesign (2026-09)
   Loaded after style.css. Owns the chrome (header/footer) globally and
   every page component under body.rd. Legacy rules in style.css still
   serve Anidle, the code viewer, the search dropdown, the proof modal
   and the mobile drawer.

   Ideas: a visible 4-column grid, giant display type, numbered sections,
   one acid-lime accent that also floods whole bands, mono metadata.
   ====================================================================== */

:root {
    --bg-color: #09090a;
    --bg-secondary-color: #101112;
    --bg-elevated-color: #17181a;
    --text-color: #f1f0ea;
    --text-muted-color: #94968f;
    --border-color: #232527;
    --line: rgba(241, 240, 234, 0.09);
    --line-strong: rgba(241, 240, 234, 0.22);
    --gutter: clamp(1.1rem, 4vw, 3rem);
    --maxw: 1360px;
    --hit: #c8f751;
    --near: #e6b422;
    --miss: #2a2c2f;
}
html.light-mode {
    --bg-color: #f3f2ea;
    --bg-secondary-color: #fbfaf5;
    --bg-elevated-color: #e9e8de;
    --text-color: #11120d;
    --text-muted-color: #5b5d52;
    --border-color: #d9d8cc;
    --line: rgba(17, 18, 13, 0.1);
    --line-strong: rgba(17, 18, 13, 0.28);
    --hit: #9fd21f;
    --near: #d69a00;
    --miss: #d3d2c6;
}

/* ---------------------------------------------------------------- base */
body.rd, body.rd-shell {
    background-image: none;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    overflow-x: hidden;
}
body.rd section { margin-bottom: 0; }
body.rd :where(h1, h2, h3, h4) {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.02;
    margin: 0;
}
body.rd :where(p) { margin: 0; }
body.rd :where(a) { color: inherit; text-decoration: none; opacity: 1; }
body.rd :where(a):hover { opacity: 1; }
body.rd ul, body.rd ol { list-style: none; }
body.rd ::selection { background: var(--accent); color: var(--accent-ink); }

/* column guides: four hairlines that give every page a visible grid */
body.rd::before {
    content: "";
    position: fixed;
    inset: 0 auto 0 50%;
    width: min(100%, var(--maxw));
    transform: translateX(-50%);
    padding-inline: var(--gutter);
    box-sizing: border-box;
    pointer-events: none;
    z-index: 0;
    background:
        linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 25% 100% content-box,
        linear-gradient(90deg, transparent calc(100% - 1px), var(--line) 0) content-box;
    background-repeat: repeat-x, no-repeat;
    background-origin: content-box;
    background-clip: content-box;
}
@media (max-width: 720px) { body.rd::before { opacity: 0.5; background-size: 50% 100%, auto; } }
body.rd > main { position: relative; z-index: 1; }

.wrap {
    width: 100%;
    max-width: var(--maxw);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.mono, .kicker, .mono-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted-color);
}
.kicker .dash, .mono b { color: var(--accent-text); font-weight: 700; }

.skip-link { background: var(--accent); color: var(--accent-ink); top: -4rem; }
.skip-link:focus { top: 0.5rem; }

/* -------------------------------------------------------------- header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: color-mix(in srgb, var(--bg-color) 88%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line-strong);
}
.site-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding-block: 0.7rem;
    max-width: var(--maxw);
    margin-inline: auto;
    padding-inline: var(--gutter);
}
.site-nav .logo {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--text-color);
    font-weight: 600;
    letter-spacing: -0.02em;
}
.logo-mark {
    display: inline-grid;
    place-items: center;
    width: 2.1rem;
    height: 2.1rem;
    background: var(--accent);
    color: var(--accent-ink);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.8rem;
    border-radius: 3px;
    letter-spacing: 0;
}
.logo-text { font-size: 0.95rem; }
.site-nav .nav-links {
    display: flex;
    gap: 0.15rem;
    margin-left: auto;
    counter-reset: nav;
}
.site-nav .nav-links li { counter-increment: nav; }
.site-nav .nav-links a {
    display: block;
    padding: 0.45rem 0.7rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted-color);
    border-radius: 3px;
    transition: color 0.2s, background 0.2s;
}
.site-nav .nav-links a::before {
    content: counter(nav, decimal-leading-zero);
    margin-right: 0.45em;
    color: var(--accent-text);
    opacity: 0.6;
}
.site-nav .nav-links a:hover { color: var(--text-color); background: var(--bg-elevated-color); }
.site-nav .nav-links a.active { color: var(--accent-ink); background: var(--accent); }
.site-nav .nav-links a.active::before { color: var(--accent-ink); opacity: 0.7; }
.nav-controls { display: flex; align-items: center; gap: 0.5rem; }
.nav-controls #site-search {
    width: 9.5rem;
    background: transparent;
    border: 1px solid var(--line-strong);
    color: var(--text-color);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    padding: 0.45rem 0.7rem;
    border-radius: 3px;
    transition: width 0.25s var(--ease), border-color 0.2s;
}
.nav-controls #site-search:focus { width: 14rem; border-color: var(--accent); outline: none; }
.nav-controls #theme-toggle, .nav-controls #lang-toggle {
    height: 2.1rem;
    min-width: 2.1rem;
    display: inline-grid;
    place-items: center;
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--line-strong);
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}
.nav-controls #theme-toggle svg { width: 1rem; height: 1rem; }
.nav-controls #theme-toggle:hover, .nav-controls #lang-toggle:hover { border-color: var(--accent); color: var(--accent-text); }

@media (max-width: 1080px) {
    .site-nav .nav-links { display: none; }
    .nav-controls { margin-left: auto; }
    .nav-controls #site-search { display: none; }
}

/* ---------------------------------------------------------------- footer */
.site-footer {
    position: relative;
    z-index: 1;
    margin-top: clamp(4rem, 10vw, 9rem);
    border-top: 1px solid var(--line-strong);
    background: var(--bg-color);
    padding: 0;
}
.footer-cta { padding-block: clamp(3rem, 8vw, 6.5rem) clamp(2rem, 5vw, 3.5rem); }
.footer-cta h2 {
    font-size: clamp(2.6rem, 9vw, 8.4rem);
    letter-spacing: -0.05em;
    line-height: 0.92;
    max-width: 14ch;
}
.footer-cta p { margin-top: 1.4rem; max-width: 46ch; color: var(--text-muted-color); font-size: 1.05rem; }
.footer-email {
    display: inline-block;
    margin-top: 1.6rem;
    font-family: var(--font-mono);
    font-size: clamp(0.95rem, 2.6vw, 1.5rem);
    color: var(--accent-ink);
    background: var(--accent);
    padding: 0.7rem 1.1rem;
    border-radius: 3px;
    letter-spacing: -0.01em;
    transition: transform 0.2s var(--ease);
}
.footer-email:hover { transform: translateY(-3px); }
.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    border-top: 1px solid var(--line-strong);
    padding-block: 2rem;
    font-size: 0.92rem;
}
.footer-grid > div { display: flex; flex-direction: column; gap: 0.5rem; align-items: flex-start; }
.footer-grid a { color: var(--text-color); border-bottom: 1px solid transparent; }
.footer-grid a:hover { color: var(--accent-text); border-bottom-color: var(--accent); }
.footer-label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted-color); margin-bottom: 0.3rem; }
.footer-base {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    border-top: 1px solid var(--line);
    padding-block: 1.2rem 1.6rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted-color);
}
.clock b { color: var(--accent-text); font-weight: 700; }
.pulse-dot {
    display: inline-block;
    width: 0.5rem; height: 0.5rem;
    border-radius: 50%;
    background: var(--accent);
    margin-right: 0.5rem;
    vertical-align: 0.05em;
    animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* reading progress (project + blog pages) */
.read-progress {
    position: fixed; top: 0; left: 0; height: 3px; width: 100%;
    transform: scaleX(0); transform-origin: 0 50%;
    background: var(--accent); z-index: 1100;
}

/* --------------------------------------------------------------- buttons */
.rd .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1.3rem;
    border-radius: 3px;
    border: 1px solid var(--line-strong);
    background: transparent;
    color: var(--text-color);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: transform 0.2s var(--ease), background 0.2s, color 0.2s, border-color 0.2s;
    box-shadow: none;
}
.rd .btn:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--accent-text); }
.rd .btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.rd .btn-primary:hover { background: var(--accent-hover); color: var(--accent-ink); }
.rd .btn-secondary { border-color: var(--text-color); }
.rd .btn::after { content: "→"; font-family: var(--font-body); font-weight: 400; transition: transform 0.2s var(--ease); }
.rd .btn:hover::after { transform: translateX(4px); }

/* ------------------------------------------------------- section chrome */
.sec { padding-block: clamp(3.5rem, 9vw, 7.5rem) 0; }
.sec-head {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 1.5rem;
    align-items: end;
    padding-bottom: 1.4rem;
    border-bottom: 1px solid var(--line-strong);
    margin-bottom: clamp(1.5rem, 4vw, 3rem);
}
.sec-head h2 { font-size: clamp(2rem, 5.2vw, 4.2rem); letter-spacing: -0.045em; text-align: left; padding: 0; }
body.rd :where(h1, h2, h3, h4) { text-align: left; }
.sec-num { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.14em; color: var(--text-muted-color); text-transform: uppercase; }
.sec-num b { color: var(--accent-text); }
@media (max-width: 720px) { .sec-head { grid-template-columns: 1fr; gap: 0.6rem; } }

/* animate-on-scroll: one rise, nothing else */
.rd .animate-on-scroll { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.rd .animate-on-scroll.is-visible { opacity: 1; transform: none; }

/* ------------------------------------------------------------------ home */
.stage {
    position: relative;
    min-height: calc(100svh - 3.6rem);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
    border-bottom: 1px solid var(--line-strong);
    isolation: isolate;
}
#nn-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; display: block; }
.hero-top {
    position: absolute;
    top: 1.2rem; left: 0; right: 0;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    pointer-events: none;
}
.nn-readout { text-align: right; max-width: 34ch; }
.nn-readout b { color: var(--accent-text); font-weight: 700; }
.hero-body { padding-block: 6rem clamp(1.6rem, 4vw, 3rem); pointer-events: none; }
.hero-body a, .hero-body button { pointer-events: auto; }
.hero-headline {
    font-size: clamp(3.3rem, 12.6vw, 11.5rem);
    letter-spacing: -0.065em;
    line-height: 0.86;
    max-width: 11ch;
}
.hero-headline em {
    font-style: normal;
    background: var(--accent);
    color: var(--accent-ink);
    padding: 0 0.1em 0.04em;
    margin-left: -0.04em;
}
.hero-foot {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: end;
    margin-top: clamp(1.6rem, 4vw, 3rem);
    padding-top: 1.4rem;
    border-top: 1px solid var(--line-strong);
}
.stage-sub { font-size: clamp(1rem, 1.6vw, 1.25rem); max-width: 46ch; color: var(--text-color); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: flex-end; }
@media (max-width: 820px) { .hero-foot { grid-template-columns: 1fr; } .hero-actions { justify-content: flex-start; } }

/* ledger: the lime band */
.ledger { background: var(--accent); color: var(--accent-ink); position: relative; z-index: 1; }
.ledger-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.ledger-cell { padding: clamp(1.4rem, 3.4vw, 2.6rem) clamp(0.8rem, 2vw, 1.6rem); border-left: 1px solid rgba(11, 12, 14, 0.28); }
.ledger-cell:first-child { border-left: 0; padding-left: 0; }
.ledger-num { display: block; font-family: var(--font-display); font-weight: 700; font-size: clamp(2.4rem, 6.4vw, 6rem); letter-spacing: -0.06em; line-height: 0.9; }
.ledger-num small { font-size: 0.42em; letter-spacing: -0.02em; margin-left: 0.08em; }
.ledger-label { display: block; margin-top: 0.7rem; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; }
@media (max-width: 720px) {
    .ledger-grid { grid-template-columns: 1fr 1fr; }
    .ledger-cell:nth-child(3) { border-left: 0; padding-left: 0; }
    .ledger-cell:nth-child(n+3) { border-top: 1px solid rgba(11, 12, 14, 0.28); }
}

/* worklist: index-style rows */
.worklist { border-top: 1px solid var(--line-strong); counter-reset: work; }
.work-row {
    position: relative;
    display: grid;
    grid-template-columns: 4.5rem minmax(0, 2.2fr) minmax(0, 1.5fr) auto;
    gap: 1.5rem;
    align-items: start;
    padding: clamp(1.2rem, 2.6vw, 2rem) 0;
    border-bottom: 1px solid var(--line-strong);
    counter-increment: work;
    transition: background 0.25s, padding 0.25s var(--ease);
}
.work-row::before {
    content: counter(work, decimal-leading-zero);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted-color);
    padding-top: 0.5rem;
}
.work-row h3 { font-size: clamp(1.5rem, 3.4vw, 2.9rem); letter-spacing: -0.045em; transition: color 0.2s, transform 0.3s var(--ease); }
.work-row .work-desc { margin-top: 0.7rem; color: var(--text-muted-color); max-width: 58ch; font-size: 0.98rem; }
.work-stat { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.4rem, 3vw, 2.6rem); letter-spacing: -0.05em; line-height: 1; color: var(--accent-text); }
.work-stat small { display: block; margin-top: 0.4rem; font-family: var(--font-mono); font-size: 0.68rem; font-weight: 400; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted-color); }
.work-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 1rem; }
.work-tags span, .tech-stack span, .tag {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.28rem 0.5rem;
    border: 1px solid var(--line-strong);
    color: var(--text-muted-color);
    border-radius: 2px;
    background: transparent;
}
.work-links { display: flex; flex-direction: column; gap: 0.5rem; align-items: flex-end; }
.work-links a {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--line-strong);
    padding-bottom: 0.15rem;
    white-space: nowrap;
    color: var(--text-color);
    transition: color 0.2s, border-color 0.2s;
}
.work-links a:first-child { color: var(--accent-text); border-color: var(--accent); }
.work-links a:hover { color: var(--accent-text); border-color: var(--accent); }
.work-row:hover { background: var(--bg-secondary-color); padding-inline: 1rem; }
.work-row:hover h3 { color: var(--accent-text); transform: translateX(6px); }
.work-row.feature { background: var(--bg-secondary-color); padding-inline: 1rem; }
.work-row.feature::after {
    content: "featured";
    position: absolute; top: 0; right: 1rem;
    transform: translateY(-50%);
    background: var(--accent); color: var(--accent-ink);
    font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 700;
    padding: 0.2rem 0.5rem;
}
@media (max-width: 900px) {
    .work-row { grid-template-columns: 2.6rem 1fr; }
    .work-row .work-stat, .work-row .work-links { grid-column: 2; align-items: flex-start; flex-direction: row; flex-wrap: wrap; gap: 1rem; }
}

/* timeline */
.tline { border-top: 1px solid var(--line-strong); }
.tl-row { display: grid; grid-template-columns: 1fr 3fr; gap: 1.5rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.tl-date { font-family: var(--font-mono); font-size: 0.82rem; color: var(--accent-text); letter-spacing: 0.06em; padding-top: 0.25rem; }
.tl-row h3 { font-size: clamp(1.25rem, 2.4vw, 1.9rem); letter-spacing: -0.035em; }
.tl-row h3 span { color: var(--text-muted-color); font-weight: 400; }
.tl-row p { margin-top: 0.5rem; color: var(--text-muted-color); max-width: 62ch; }
@media (max-width: 720px) { .tl-row { grid-template-columns: 1fr; gap: 0.3rem; } }

/* toolbelt */
.toolbelt { display: grid; grid-template-columns: repeat(6, 1fr); border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); }
.tool {
    display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between;
    gap: 1.8rem;
    min-height: 8.5rem;
    padding: 1rem;
    border-right: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: background 0.2s, color 0.2s;
}
.tool img { width: 1.8rem; height: 1.8rem; filter: grayscale(1) contrast(1.1); opacity: 0.85; transition: filter 0.2s, opacity 0.2s; }
html:not(.light-mode) .tool img { filter: grayscale(1) invert(1) contrast(0.9); }
.tool:hover { background: var(--accent); color: var(--accent-ink); }
.tool:hover img { filter: grayscale(1) brightness(0); opacity: 1; }
@media (max-width: 980px) { .toolbelt { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 520px) { .toolbelt { grid-template-columns: repeat(2, 1fr); } }

/* sample round: mock guess grid (home) */
.round { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(1.5rem, 5vw, 5rem); align-items: center; }
.round h3 { font-size: clamp(1.8rem, 4vw, 3.4rem); letter-spacing: -0.045em; margin-bottom: 1rem; }
.round p { color: var(--text-muted-color); max-width: 44ch; margin-bottom: 1.6rem; }
.grid-mock { display: grid; gap: 4px; font-family: var(--font-mono); font-size: 0.68rem; }
.grid-mock .gm-row { display: grid; grid-template-columns: 1.5fr repeat(5, 1fr); gap: 4px; }
.gm-cell {
    display: grid; place-items: center; text-align: center;
    min-height: 3rem; padding: 0.3rem;
    background: var(--miss); color: var(--text-color);
    letter-spacing: 0.04em; text-transform: uppercase;
    border-radius: 2px;
}
.gm-head .gm-cell { background: transparent; color: var(--text-muted-color); min-height: 1.4rem; font-size: 0.6rem; }
.gm-cell.hit { background: var(--hit); color: #0b0c0e; }
.gm-cell.near { background: var(--near); color: #0b0c0e; }
.gm-name { justify-items: start; text-align: left; font-weight: 700; background: transparent; border: 1px solid var(--line-strong); }
.gm-row:not(.gm-head) .gm-cell:not(.gm-name) { transform: rotateX(90deg); opacity: 0; }
.grid-mock.is-visible .gm-row:not(.gm-head) .gm-cell:not(.gm-name) { animation: flip 0.55s var(--ease) forwards; animation-delay: calc(var(--i, 0) * 110ms + var(--r, 0) * 520ms); }
@keyframes flip { to { transform: none; opacity: 1; } }
@media (max-width: 820px) { .round { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------ inner pages */
.pagehead { padding-block: clamp(3rem, 8vw, 6rem) clamp(1.5rem, 4vw, 3rem); border-bottom: 1px solid var(--line-strong); }
.pagehead .kicker { display: block; margin-bottom: 1.4rem; }
.pagehead h1 { font-size: clamp(3rem, 11vw, 10rem); letter-spacing: -0.065em; line-height: 0.88; max-width: 13ch; }
.pagehead .lede { margin-top: 1.8rem; max-width: 56ch; font-size: clamp(1.05rem, 1.7vw, 1.3rem); color: var(--text-muted-color); }
.pagehead .lede strong { color: var(--text-color); font-weight: 500; }

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; padding-block: 1.4rem; }
.rd .filter-btn {
    background: transparent;
    border: 1px solid var(--line-strong);
    color: var(--text-muted-color);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.55rem 0.9rem;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.2s;
}
.rd .filter-btn:hover { color: var(--text-color); border-color: var(--text-color); }
.rd .filter-btn.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* about */
.about-split { display: grid; grid-template-columns: 1fr 3fr; gap: clamp(1.5rem, 4vw, 4rem); padding-top: clamp(2rem, 5vw, 4rem); }
.about-side { position: sticky; top: 5.5rem; align-self: start; display: flex; flex-direction: column; gap: 1.6rem; }
.kv dt { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted-color); margin-bottom: 0.25rem; }
.kv dd { font-size: 1.02rem; }
.about-main > .sec:first-child { padding-top: 0; }
.skill-matrix { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); }
.skill-col { padding: 1.4rem; border-right: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.skill-col h3 { font-size: 1.3rem; margin-bottom: 1rem; }
.skill-col .work-tags { margin-top: 0; }
.big-stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.big-stat .n { display: block; font-family: var(--font-display); font-size: clamp(2.6rem, 6vw, 5rem); font-weight: 700; letter-spacing: -0.06em; line-height: 0.9; color: var(--accent-text); }
.big-stat .l { display: block; margin-top: 0.6rem; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted-color); }
@media (max-width: 900px) { .about-split { grid-template-columns: 1fr; } .about-side { position: static; } .skill-matrix { grid-template-columns: 1fr; } }

/* achievements */
.ach-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 0; border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); }
.ach-card {
    position: relative;
    grid-column: span 4;
    display: flex; flex-direction: column; gap: 1rem;
    padding: 1.6rem 1.4rem 1.4rem;
    border-right: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
    background: transparent;
    transition: background 0.2s;
    cursor: default;
}
.ach-card.featured { grid-column: span 6; }
.ach-card[data-proof-image] { cursor: pointer; }
.ach-card[data-proof-image]:hover { background: var(--bg-secondary-color); }
.ach-card .ach-num { font-family: var(--font-display); font-weight: 700; font-size: clamp(2.2rem, 4.6vw, 4.2rem); letter-spacing: -0.06em; line-height: 0.9; color: var(--accent-text); }
.ach-card.featured .ach-num { font-size: clamp(3rem, 7vw, 6.4rem); }
.ach-card .ach-lab { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted-color); }
.ach-card h3 { font-size: 1.35rem; letter-spacing: -0.03em; }
.ach-card p { color: var(--text-muted-color); font-size: 0.95rem; }
.ach-meta { margin-top: auto; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted-color); padding-top: 1rem; border-top: 1px solid var(--line); }
.proof-indicator { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent-text); }
@media (max-width: 980px) { .ach-card, .ach-card.featured { grid-column: span 6; } }
@media (max-width: 640px) { .ach-card, .ach-card.featured { grid-column: span 12; } }

.tenets { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-strong); }
.tenet { padding: 1.6rem 1.4rem 1.6rem 0; border-right: 1px solid var(--line); }
.tenet + .tenet { padding-left: 1.4rem; }
.tenet:last-child { border-right: 0; }
.tenet h3 { font-size: 1.6rem; margin-bottom: 0.6rem; }
.tenet p { color: var(--text-muted-color); }
@media (max-width: 720px) { .tenets { grid-template-columns: 1fr; } .tenet { border-right: 0; border-bottom: 1px solid var(--line); padding-left: 0 !important; } }

/* play */
.game-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); }
.game-tile {
    position: relative;
    display: flex; flex-direction: column; justify-content: space-between; gap: 2.2rem;
    min-height: 20rem;
    padding: 1.6rem;
    border-right: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
    transition: background 0.25s, color 0.25s;
}
.game-tile h3 { font-size: clamp(2.4rem, 6vw, 5.4rem); letter-spacing: -0.06em; line-height: 0.9; }
.game-tile p { margin-top: 1rem; max-width: 42ch; color: var(--text-muted-color); }
.game-tile .top { display: flex; justify-content: space-between; align-items: center; }
.game-tile .go { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 700; }
.game-tile.live:hover { background: var(--accent); color: var(--accent-ink); }
.game-tile.live:hover p, .game-tile.live:hover .tag { color: var(--accent-ink); border-color: rgba(11, 12, 14, 0.4); }
.game-tile.live .go::after { content: " →"; }
.game-tile.wip { color: var(--text-muted-color); background-image: repeating-linear-gradient(135deg, transparent 0 14px, var(--line) 14px 15px); }
.game-tile.wip h3 { color: var(--text-muted-color); }
@media (max-width: 720px) { .game-grid { grid-template-columns: 1fr; } .game-tile { min-height: 14rem; } }

/* lab */
.lab-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); }
.lab-card { display: flex; flex-direction: column; gap: 1rem; padding: 1.6rem; border-right: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); transition: background 0.2s; }
.lab-card:hover { background: var(--bg-secondary-color); }
.lab-card .top { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.lab-card h3 { font-size: clamp(1.7rem, 3vw, 2.5rem); letter-spacing: -0.05em; }
.lab-card p { color: var(--text-muted-color); }
.lab-card .work-tags { margin-top: auto; padding-top: 0.6rem; }
.status { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; display: inline-flex; align-items: center; gap: 0.5rem; }
.status::before { content: ""; width: 0.55rem; height: 0.55rem; border-radius: 50%; background: var(--text-muted-color); }
.status.live::before { background: var(--accent); }
.status.build::before { background: var(--near); }
.lab-card .ext { align-self: flex-start; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent-text); border-bottom: 1px solid var(--accent); }
@media (max-width: 720px) { .lab-grid { grid-template-columns: 1fr; } }

/* cta strip */
.cta-strip { display: flex; align-items: end; justify-content: space-between; gap: 2rem; flex-wrap: wrap; padding-block: clamp(2rem, 5vw, 3.5rem); border-block: 1px solid var(--line-strong); }
.cta-strip h2 { font-size: clamp(1.8rem, 4.6vw, 3.8rem); letter-spacing: -0.05em; max-width: 18ch; }
.cta-strip p { margin-top: 0.8rem; color: var(--text-muted-color); max-width: 46ch; }

/* ------------------------------------------- project + article (prose) */
.rd .project-page-main, .rd .article-main { padding: 0; }
.project-hero { padding-block: clamp(3rem, 7vw, 5.5rem) clamp(1.6rem, 4vw, 3rem); border-bottom: 1px solid var(--line-strong); }
.project-hero .kicker { display: block; margin-bottom: 1.2rem; }
.project-hero h1 { font-size: clamp(2.4rem, 8vw, 7rem); letter-spacing: -0.06em; line-height: 0.9; max-width: 16ch; }
.project-hero .project-tagline { margin-top: 1.4rem; max-width: 60ch; font-size: clamp(1.02rem, 1.6vw, 1.25rem); color: var(--text-muted-color); }
.project-hero .project-links { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 2rem; justify-content: flex-start; }

.rd .v2-stats-grid, .rd .statbar { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); border-left: 1px solid var(--line-strong); border-top: 1px solid var(--line-strong); margin: clamp(1.6rem, 4vw, 3rem) 0; }
.rd .v2-stat-card { padding: 1.2rem; border-right: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); background: transparent; border-radius: 0; text-align: left; box-shadow: none; transform: none; }
.rd .v2-stat-card:hover { transform: none; box-shadow: none; background: var(--accent); color: var(--accent-ink); }
.rd .v2-stat-card:hover .v2-stat-number, .rd .v2-stat-card:hover .v2-stat-label { color: var(--accent-ink); }
.rd .v2-stat-number { display: block; font-family: var(--font-display); font-weight: 700; font-size: clamp(1.7rem, 3.4vw, 2.8rem); letter-spacing: -0.05em; color: var(--accent-text); margin: 0 0 0.3rem; }
.rd .v2-stat-label { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted-color); }

.rd .project-details-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); }
.rd .project-details-section { margin: 0 0 clamp(2rem, 5vw, 3.5rem); }
.rd .project-details-section h2, .rd .project-details-section h3 {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    letter-spacing: -0.04em;
    padding: 0 0 0.7rem;
    margin-bottom: 1.1rem;
    border-bottom: 1px solid var(--line-strong);
}
.rd .project-details-section p, .rd .project-details-section li, .article-body p, .article-body li { color: var(--text-muted-color); font-size: 1.03rem; line-height: 1.7; }
.rd .project-details-section p + p, .article-body p + p { margin-top: 1rem; }
.rd .project-details-section strong, .article-body strong { color: var(--text-color); font-weight: 600; }
.rd .feature-list, .rd .privacy-list, .rd .architecture-list, .article-body ul { display: grid; gap: 0.7rem; }
.rd .feature-list li, .rd .privacy-list li, .rd .architecture-list li, .article-body ul li { padding-left: 1.4rem; position: relative; }
.rd .feature-list li::before, .rd .privacy-list li::before, .rd .architecture-list li::before, .article-body ul li::before { content: ""; position: absolute; left: 0; top: 0.75em; width: 0.6rem; height: 2px; background: var(--accent); }

.rd .architecture-diagram, .rd .code-highlight, .rd .code-example pre, .article-body pre {
    background: var(--bg-secondary-color);
    border: 1px solid var(--line-strong);
    border-left: 3px solid var(--accent);
    border-radius: 0;
    padding: 1.2rem 1.3rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.6;
    overflow-x: auto;
    color: var(--text-color);
    margin: 1.4rem 0;
    white-space: pre;
}
.rd code { font-family: var(--font-mono); font-size: 0.9em; }
.rd :not(pre) > code { background: var(--bg-elevated-color); padding: 0.1em 0.4em; border-radius: 2px; }

.rd .callout {
    border: 1px solid var(--accent);
    background: var(--bg-secondary-color);
    padding: 1.4rem 1.5rem;
    margin: 1.6rem 0;
    border-radius: 0;
}
.rd .callout h3 { font-size: 1.25rem; margin-bottom: 0.6rem; padding: 0; border: 0; color: var(--accent-text); }
.rd .callout p { color: var(--text-color); }

.rd .tech-stack-grid, .rd .showcase-grid, .rd .code-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); margin: 1.6rem 0; gap: 0; }
.rd .tech-category, .rd .showcase-item { padding: 1.2rem; border-right: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); background: transparent; border-radius: 0; }
.rd .tech-category h4, .rd .showcase-item h4 { font-size: 1.05rem; color: var(--accent-text); margin-bottom: 0.7rem; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 700; }
.rd .tech-list li { padding: 0.15rem 0; color: var(--text-muted-color); }
.rd .showcase-icon { display: none; }
.rd .install-steps { display: grid; gap: 1rem; counter-reset: step; }
.rd .install-step { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.rd .step-number { font-family: var(--font-mono); color: var(--accent-text); font-weight: 700; }

.rd .project-details-col:last-child { position: sticky; top: 5.5rem; align-self: start; }
.rd .tech-stack, .rd .tech-stack-list { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.rd .tech-stack-list li { list-style: none; }

/* evolution timeline (anime recommender) */
.evo { border-top: 1px solid var(--line-strong); margin: 1.6rem 0; }
.evo-row { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1.2rem; padding: 1.1rem 0; border-bottom: 1px solid var(--line); }
.evo-row time { font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent-text); padding-top: 0.2rem; }
.evo-row h4 { font-size: 1.15rem; letter-spacing: -0.03em; margin-bottom: 0.3rem; }
.evo-row p { margin: 0; font-size: 0.95rem; }
@media (max-width: 720px) { .rd .project-details-grid { grid-template-columns: minmax(0, 1fr); } .rd .project-details-col:last-child { position: static; } .evo-row { grid-template-columns: 1fr; gap: 0.2rem; } }

/* blog list + article */
.post-row { display: grid; grid-template-columns: 9rem minmax(0, 1fr) auto; gap: 1.5rem; padding: 2rem 0; border-bottom: 1px solid var(--line-strong); align-items: start; transition: background 0.2s, padding 0.25s var(--ease); }
.post-row:hover { background: var(--bg-secondary-color); padding-inline: 1rem; }
.post-row h3 { font-size: clamp(1.5rem, 3.4vw, 2.6rem); letter-spacing: -0.045em; }
.post-row:hover h3 { color: var(--accent-text); }
.post-row p { margin-top: 0.7rem; color: var(--text-muted-color); max-width: 60ch; }
.post-meta { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted-color); display: flex; flex-direction: column; gap: 0.3rem; }
.post-meta .blog-category { color: var(--accent-text); }
@media (max-width: 720px) { .post-row { grid-template-columns: 1fr; gap: 0.6rem; } }
.article-main .article-body { max-width: 720px; margin-inline: auto; padding-block: clamp(2rem, 5vw, 4rem) 0; }
.article-body h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); letter-spacing: -0.045em; margin: 2.6rem 0 1rem; }
.article-body h3 { font-size: 1.3rem; margin: 2rem 0 0.6rem; }
.article-body img { max-width: 100%; }
.article-body a { color: var(--accent-text); border-bottom: 1px solid var(--accent); }
.rd .project-details-section table, .article-body table { width: 100%; border-collapse: collapse; margin: 1.4rem 0; font-size: 0.92rem; }
.rd .project-details-section th, .rd .project-details-section td, .article-body th, .article-body td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--line-strong); }
.rd .project-details-section th, .article-body th { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted-color); }
.article-body blockquote { border-left: 3px solid var(--accent); padding-left: 1.2rem; color: var(--text-color); margin: 1.6rem 0; font-size: 1.15rem; }

/* 404 */
.nf { min-height: calc(100svh - 12rem); display: flex; flex-direction: column; justify-content: center; padding-block: 3rem; }
.nf .big { font-family: var(--font-display); font-weight: 700; font-size: clamp(7rem, 30vw, 26rem); letter-spacing: -0.08em; line-height: 0.78; color: var(--accent-text); }
.nf p { margin: 1.4rem 0 1.8rem; max-width: 44ch; color: var(--text-muted-color); font-size: 1.1rem; }

/* ------------------------------------------------------- motion + a11y */
@media (prefers-reduced-motion: reduce) {
    .rd .animate-on-scroll { opacity: 1; transform: none; transition: none; }
    .pulse-dot { animation: none; }
    .gm-row:not(.gm-head) .gm-cell:not(.gm-name) { transform: none !important; opacity: 1 !important; animation: none !important; }
    .rd .btn, .work-row, .work-row h3, .footer-email { transition: none; }
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ------------------------------------------------- page transitions */
@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: 0.28s; animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1); }
@media (prefers-reduced-motion: reduce) { @view-transition { navigation: none; } }

/* --------------------------------------------------- command palette */
.nav-controls .kbd-btn {
    height: 2.1rem; padding: 0 0.6rem;
    background: transparent; color: var(--text-muted-color);
    border: 1px solid var(--line-strong); border-radius: 3px;
    font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.06em; cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
}
.nav-controls .kbd-btn span { color: var(--accent-text); }
.nav-controls .kbd-btn:hover { color: var(--text-color); border-color: var(--accent); }
@media (max-width: 1080px) { .nav-controls .kbd-btn { display: none; } }
.pal { position: fixed; inset: 0; z-index: 2000; display: grid; align-items: start; justify-items: center; padding: 14vh 1rem 1rem; background: color-mix(in srgb, var(--bg-color) 72%, transparent); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.pal[hidden] { display: none; }
.pal-box { width: min(38rem, 100%); background: var(--bg-secondary-color); border: 1px solid var(--accent); }
.pal-input { width: 100%; background: transparent; border: 0; border-bottom: 1px solid var(--line-strong); color: var(--text-color); font-family: var(--font-mono); font-size: 1rem; padding: 1.1rem 1.2rem; outline: none; }
.pal-list { list-style: none; margin: 0; padding: 0.3rem; max-height: 46vh; overflow-y: auto; }
.pal-item { display: flex; justify-content: space-between; gap: 1rem; padding: 0.65rem 0.9rem; cursor: pointer; border-radius: 2px; }
.pal-item em { font-style: normal; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted-color); }
.pal-item.is-sel { background: var(--accent); color: var(--accent-ink); }
.pal-item.is-sel em { color: var(--accent-ink); }
.pal-empty { padding: 1rem; color: var(--text-muted-color); font-family: var(--font-mono); font-size: 0.8rem; }
.pal-foot { display: flex; gap: 1.2rem; padding: 0.6rem 1rem; border-top: 1px solid var(--line); font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em; color: var(--text-muted-color); margin: 0; }
html.pal-open { overflow: hidden; }

/* compact page head (dense pages: code viewer) */
.pagehead.compact h1 { font-size: clamp(2rem, 5.5vw, 4.4rem); letter-spacing: -0.05em; }
.pagehead.compact { padding-bottom: 1.6rem; }
.pagehead .breadcrumb { display: flex; flex-wrap: wrap; gap: 0.5rem; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted-color); margin-bottom: 1.2rem; }
.pagehead .breadcrumb a { color: var(--accent-text); }
.pagehead > p:not(.kicker):not(.lede) { margin-top: 1.2rem; max-width: 60ch; color: var(--text-muted-color); }

/* ---------------------------------------------- similarity explorer */
.explorer { border: 1px solid var(--line-strong); padding: clamp(1rem, 3vw, 1.8rem); background: var(--bg-secondary-color); margin: 1.4rem 0; }
.ex-top { display: flex; flex-wrap: wrap; gap: 1rem; align-items: end; }
.ex-field { display: flex; flex-direction: column; gap: 0.4rem; flex: 1 1 16rem; }
.ex-label { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted-color); }
.ex-select { width: 100%; background: var(--bg-color); color: var(--text-color); border: 1px solid var(--line-strong); border-radius: 3px; padding: 0.75rem 0.8rem; font-family: var(--font-body); font-size: 1rem; }
.ex-weights { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: 0.9rem 1.4rem; margin-top: 1.4rem; padding-top: 1.2rem; border-top: 1px solid var(--line); align-items: end; }
.ex-weights > .ex-label { grid-column: 1 / -1; }
.ex-slider { display: grid; grid-template-columns: 1fr auto; gap: 0.2rem 0.6rem; font-family: var(--font-mono); font-size: 0.72rem; }
.ex-slider input { grid-column: 1 / -1; width: 100%; accent-color: var(--accent); }
.ex-sval { color: var(--text-color); }
.ex-sname { letter-spacing: 0.1em; text-transform: uppercase; }
.ex-sname::before { content: ""; display: inline-block; width: 0.6rem; height: 0.6rem; margin-right: 0.45rem; background: var(--accent); vertical-align: -0.05em; }
.ex-sname.ex-c-score::before { opacity: 0.6; } .ex-sname.ex-c-year::before { opacity: 0.35; } .ex-sname.ex-c-type::before { opacity: 0.18; }
.ex-reset { grid-column: 1 / -1; justify-self: start; background: none; border: 0; border-bottom: 1px solid var(--line-strong); color: var(--text-muted-color); font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; padding: 0 0 0.15rem; }
.ex-reset:hover { color: var(--accent-text); border-color: var(--accent); }
.ex-nn { margin-top: 1.6rem; }
.ex-list { list-style: none; margin: 0.6rem 0 0; padding: 0; display: grid; gap: 0.15rem; counter-reset: ex; }
.ex-row { display: grid; gap: 0.3rem; padding: 0.7rem 0; border-top: 1px solid var(--line); counter-increment: ex; }
.ex-head { display: flex; align-items: baseline; gap: 0.8rem; }
.ex-head::before { content: counter(ex, decimal-leading-zero); font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-muted-color); }
.ex-head strong { flex: 1; font-weight: 600; letter-spacing: -0.02em; }
.ex-meta { font-family: var(--font-mono); font-size: 0.68rem; color: var(--text-muted-color); text-transform: uppercase; letter-spacing: 0.08em; }
.ex-pct { font-family: var(--font-mono); font-weight: 700; color: var(--accent-text); min-width: 3ch; text-align: right; }
.ex-bar { display: flex; height: 0.5rem; background: var(--bg-elevated-color); }
.ex-bar i { display: block; height: 100%; background: var(--accent); transition: width 0.35s var(--ease); }
.ex-bar i.ex-c-score { opacity: 0.6; } .ex-bar i.ex-c-year { opacity: 0.35; } .ex-bar i.ex-c-type { opacity: 0.18; }
.ex-shared { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.06em; color: var(--text-muted-color); }
.ex-foot { margin-top: 1.2rem; font-size: 0.85rem !important; color: var(--text-muted-color); max-width: 62ch; }

/* ------------------------------------------------------------- quint */
.quint { display: grid; grid-template-columns: minmax(0, 26rem) minmax(0, 1fr); gap: clamp(1.5rem, 5vw, 5rem); padding-top: clamp(2rem, 5vw, 3.5rem); align-items: start; }
.q-modes { display: flex; gap: 0.4rem; margin-bottom: 1.2rem; }
.q-board { display: grid; gap: 6px; }
.q-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.q-cell { aspect-ratio: 1; display: grid; place-items: center; border: 1px solid var(--line-strong); font-family: var(--font-display); font-weight: 700; font-size: clamp(1.6rem, 6vw, 2.4rem); letter-spacing: 0; text-transform: uppercase; background: transparent; color: var(--text-color); transition: background 0.3s, border-color 0.15s, transform 0.15s; }
.q-cell.filled { border-color: var(--text-color); transform: scale(1.03); }
.q-cell.hit { background: var(--hit); border-color: var(--hit); color: #0b0c0e; transform: none; }
.q-cell.near { background: var(--near); border-color: var(--near); color: #0b0c0e; transform: none; }
.q-cell.miss { background: var(--miss); border-color: var(--miss); color: var(--text-muted-color); transform: none; }
.q-msg { min-height: 1.6rem; margin-top: 0.8rem; font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.06em; color: var(--accent-text); }
.q-after { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 1rem; }
.q-after[hidden] { display: none; }
.q-keys { display: grid; gap: 6px; margin-top: 0.6rem; }
.q-krow { display: flex; gap: 5px; justify-content: center; }
.q-key { flex: 1; max-width: 2.6rem; height: 3.1rem; background: var(--bg-elevated-color); color: var(--text-color); border: 0; border-radius: 3px; font-family: var(--font-mono); font-weight: 700; font-size: 0.85rem; text-transform: uppercase; cursor: pointer; }
.q-key.wide { flex: 1.6; max-width: 4rem; font-size: 0.7rem; }
.q-key:hover { outline: 1px solid var(--accent); }
.q-key.hit { background: var(--hit); color: #0b0c0e; }
.q-key.near { background: var(--near); color: #0b0c0e; }
.q-key.miss { background: var(--miss); color: var(--text-muted-color); opacity: 0.55; }
.q-stats { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line-strong); margin-bottom: 2rem; }
.q-stats div { padding: 0.9rem 0.6rem; border-right: 1px solid var(--line-strong); }
.q-stats div:last-child { border-right: 0; }
.q-stats b { display: block; font-family: var(--font-display); font-size: 2rem; letter-spacing: -0.05em; color: var(--accent-text); line-height: 1; }
.q-stats span { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted-color); }
.q-note { color: var(--text-muted-color); font-size: 0.92rem; margin: 0.4rem 0 1rem; max-width: 46ch; }
.q-bank { display: flex; flex-wrap: wrap; gap: 0.3rem 0.5rem; font-family: var(--font-mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; }
.q-bank span { padding: 0.1rem 0.3rem; border: 1px solid var(--line); transition: opacity 0.25s; }
.q-bank span.dead { opacity: 0.22; text-decoration: line-through; }
@media (max-width: 900px) { .quint { grid-template-columns: 1fr; } .q-board { max-width: 24rem; } }

/* --------------------------------------------------------- neighbours */
.nb { padding-top: clamp(2rem, 5vw, 3.5rem); }
.nb-root { max-width: 46rem; }
.nb-head { display: flex; justify-content: space-between; border-bottom: 1px solid var(--line-strong); padding-bottom: 0.8rem; }
.nb-prompt { margin-top: 1.6rem; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted-color); }
.nb-title { font-size: clamp(2rem, 6vw, 4rem) !important; letter-spacing: -0.05em; margin-top: 0.4rem !important; }
.nb-meta { margin-top: 0.6rem; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted-color); }
.nb-opts { display: grid; gap: 0.5rem; margin: 1.8rem 0 1.4rem; }
.nb-opt { position: relative; display: grid; gap: 0.25rem; text-align: left; padding: 1rem 4.5rem 1rem 1.1rem; background: transparent; color: var(--text-color); border: 1px solid var(--line-strong); border-radius: 3px; cursor: pointer; font-family: var(--font-body); transition: border-color 0.2s, background 0.2s, transform 0.2s var(--ease); }
.nb-opt:not(:disabled):hover { border-color: var(--accent); transform: translateX(4px); }
.nb-opt:disabled { cursor: default; opacity: 0.75; }
.nb-opt strong { font-size: 1.15rem; letter-spacing: -0.02em; font-weight: 600; }
.nb-ometa, .nb-shared { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted-color); }
.nb-pct { position: absolute; right: 1rem; top: 1rem; font-style: normal; font-family: var(--font-mono); font-weight: 700; color: var(--accent-text); }
.nb-opt.is-top { opacity: 1; border-color: var(--accent); background: var(--bg-secondary-color); }
.nb-opt.is-wrong { opacity: 1; border-color: var(--near); }
.nb-verdict { font-family: var(--font-mono); font-size: 0.85rem; margin-bottom: 1.2rem; }
.nb-verdict.ok { color: var(--accent-text); }
.nb-verdict.no { color: var(--text-color); }
.nb-final { font-family: var(--font-display); font-weight: 700; font-size: clamp(4rem, 14vw, 9rem); letter-spacing: -0.07em; line-height: 0.9; color: var(--accent-text); margin: 0.6rem 0 1rem; }

/* ---------------------------------------------------------- colophon */
.co-live { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line-strong); }
.co-live div { padding: clamp(1rem, 3vw, 2rem); border-right: 1px solid var(--line-strong); }
.co-live div:last-child { border-right: 0; }
.co-live b { display: block; font-family: var(--font-display); font-size: clamp(2.4rem, 6vw, 5rem); letter-spacing: -0.06em; line-height: 0.9; color: var(--accent-text); }
.co-live span { display: block; margin-top: 0.6rem; font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted-color); }
.co-note { margin-top: 1rem; color: var(--text-muted-color); font-size: 0.9rem; max-width: 62ch; }
.co-list { border-top: 1px solid var(--line-strong); }
.co-row { display: grid; grid-template-columns: 1fr 3fr; gap: 1.5rem; padding: 1.2rem 0; border-bottom: 1px solid var(--line); }
.co-row dt { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-text); padding-top: 0.2rem; }
.co-row dd { color: var(--text-color); max-width: 66ch; margin: 0; }
.co-decs { border-top: 1px solid var(--line-strong); }
.co-dec { display: grid; grid-template-columns: 4rem 1fr; gap: 1.5rem; padding: 1.8rem 0; border-bottom: 1px solid var(--line); }
.co-n { font-family: var(--font-display); font-size: 2.6rem; font-weight: 700; letter-spacing: -0.06em; color: var(--accent-text); line-height: 1; }
.co-dec h3 { font-size: clamp(1.4rem, 3vw, 2.2rem); letter-spacing: -0.04em; margin-bottom: 0.6rem; }
.co-dec p { color: var(--text-muted-color); max-width: 62ch; }
.co-todo { display: grid; gap: 0.7rem; }
.co-todo li { padding-left: 1.4rem; position: relative; color: var(--text-muted-color); max-width: 66ch; }
.co-todo li::before { content: ""; position: absolute; left: 0; top: 0.75em; width: 0.6rem; height: 2px; background: var(--accent); }
@media (max-width: 720px) { .co-live { grid-template-columns: 1fr 1fr; } .co-live div:nth-child(2) { border-right: 0; } .co-live div:nth-child(n+3) { border-top: 1px solid var(--line-strong); } .co-row { grid-template-columns: 1fr; gap: 0.3rem; } .co-dec { grid-template-columns: 2.6rem 1fr; } }

/* working rules (home) */
.tenet-stat { display: block; font-family: var(--font-display); font-weight: 700; font-size: clamp(3rem, 7vw, 6rem); letter-spacing: -0.07em; line-height: 0.9; color: var(--accent-text); }
.tenet-stat small { font-size: 0.32em; letter-spacing: -0.02em; margin-left: 0.15em; color: var(--text-muted-color); }
.tenet-lab { display: block; margin: 0.6rem 0 1.4rem; font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted-color); }
.nn-hint { color: var(--text-muted-color); opacity: 0.8; }

.tenet h3 { font-size: clamp(1.3rem, 2.4vw, 1.8rem); }
.tenet p { margin-top: 0.8rem; }

.rd .project-details-col { min-width: 0; }
.rd .pagehead.compact, .rd .vscode-container { max-width: 100%; }

.nav-controls .kbd-btn { white-space: nowrap; flex-shrink: 0; }
.nav-controls { flex-shrink: 0; }

/* ---------------------------------------------------- which language */
.lg-code { margin: 1.2rem 0 1.4rem; padding: 1.3rem 1.4rem; background: var(--bg-secondary-color); border: 1px solid var(--line-strong); border-left: 3px solid var(--accent); font-family: var(--font-mono); font-size: clamp(0.82rem, 2.2vw, 1rem); line-height: 1.6; overflow-x: auto; white-space: pre; color: var(--text-color); }
.lg-opts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.5rem; margin-bottom: 1.4rem; }
.lg-opt { padding: 0.9rem 1rem !important; font-family: var(--font-mono) !important; font-weight: 700; }
@media (max-width: 520px) { .lg-opts { grid-template-columns: 1fr; } }

.rd .tech-stack-list { gap: 0.35rem; }
.rd .tech-stack-list li { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.28rem 0.5rem; border: 1px solid var(--line-strong); color: var(--text-muted-color); border-radius: 2px; }

@media (max-width: 720px) {
    .hero-top { flex-direction: column; gap: 0.5rem; }
    .nn-readout { text-align: left; max-width: none; }
    .nn-hint { display: none; }
    .hero-body { padding-top: 8rem; }
}