/* ===========================================================================
   layout.css — page architecture: backdrop, nav, hero, section rhythm,
   marquee, about/stack/contact bands, footer, progress rail.
   =========================================================================== */

/* ---------------------------------------------------------------------------
   Backdrop: three stacked layers behind everything.
   1. .bd-wash   — two slow-drifting colour fields (CSS, GPU-cheap)
   2. #field     — the interactive dot matrix (canvas, js/backdrop.js)
   3. .bd-grain  — fine film grain so flat colour never looks digital
   --------------------------------------------------------------------------- */

.bd {
    position: fixed;
    inset: 0;
    z-index: var(--z-backdrop);
    pointer-events: none;
    overflow: hidden;
}

.bd-wash {
    position: absolute; inset: -30%;
    opacity: var(--wash-opacity);
    transition: opacity var(--d-3) var(--e-out);
}

/* Each field is a pre-softened gradient rather than a circle under a
   blur(90px) filter: a filter over moving content is re-run by the GPU every
   frame, full-screen, for the whole visit. The eased stops approximate the
   blurred falloff, and the boxes are grown by the blur's reach (120px a side,
   pulled back with negative margins so the centres don't move). */
.bd-wash span {
    position: absolute;
    width: calc(46vw + 240px); height: calc(46vw + 240px);
    min-width: 620px; min-height: 620px;
    margin: -120px;
    background: radial-gradient(closest-side at var(--at, 50% 50%),
        var(--c),
        color-mix(in srgb, var(--c) 82%, transparent) 22%,
        color-mix(in srgb, var(--c) 52%, transparent) 46%,
        color-mix(in srgb, var(--c) 22%, transparent) 68%,
        color-mix(in srgb, var(--c) 6%, transparent) 86%,
        transparent);
    will-change: transform;
}
.bd-wash span:nth-child(1) {
    top: 4%; left: 2%;
    --at: 46% 46%;
    --c: rgba(209,68,36,.15);
    animation: drift-a 26s var(--e-inout) infinite alternate;
}
.bd-wash span:nth-child(2) {
    top: 22%; right: 0%;
    --at: 52% 48%;
    --c: rgba(29,111,224,.12);
    animation: drift-b 32s var(--e-inout) infinite alternate;
}
.bd-wash span:nth-child(3) {
    bottom: 2%; left: 34%;
    --c: rgba(16,101,63,.105);
    animation: drift-c 38s var(--e-inout) infinite alternate;
}

#field { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .9; }

/* The bleed only has to cover the grain keyframes' largest shift (8% of the
   element = 9.6% of the screen at -10%). It used to be -50% — a blended layer
   four screens in area, recomposited every frame over the moving lattice. */
.bd-grain {
    position: absolute; inset: -10%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
    opacity: var(--grain-opacity);
    mix-blend-mode: var(--grain-blend);
    animation: grain 6s steps(6) infinite;
}

/* Vignette: pulls the eye to the centre column. */
.bd::after {
    content: "";
    position: absolute; inset: 0;
    background: radial-gradient(120% 90% at 50% 0%, transparent 45%, var(--vignette) 100%);
}

/* ---------------------------------------------------------------------------
   Navigation — floating pill, condenses on scroll.
   --------------------------------------------------------------------------- */

.nav {
    position: fixed;
    top: 16px; left: 50%;
    translate: -50% 0;
    z-index: var(--z-nav);
    width: min(calc(100% - 32px), var(--maxw));
    display: flex;
    align-items: center;
    gap: 12px;
    height: var(--nav-h);
    padding: 0 10px 0 18px;
    border-radius: var(--r-full);
    border: 1px solid transparent;
    transition: background var(--d-3) var(--e-expo),
                border-color var(--d-3) var(--e-expo),
                box-shadow var(--d-3) var(--e-expo),
                height var(--d-3) var(--e-expo),
                top var(--d-3) var(--e-expo);
}

.nav.is-stuck {
    top: 10px;
    height: 58px;
    background: var(--paper-veil);
    backdrop-filter: blur(18px) saturate(1.6);
    -webkit-backdrop-filter: blur(18px) saturate(1.6);
    border-color: var(--line);
    box-shadow: var(--shadow-2);
}

/* Monogram: two glyphs in a rotating plaque. */
.nav-mark {
    display: inline-flex; align-items: center; gap: 11px;
    font-family: var(--font-display);
    font-size: 1.05rem; font-weight: 600;
    color: var(--ink);
    letter-spacing: -.02em;
}
.nav-mark i {
    display: grid; place-items: center;
    width: 34px; height: 34px;
    border-radius: 11px;
    background: var(--ink);
    color: var(--paper);
    font-style: normal;
    font-size: .78rem; font-weight: 600;
    letter-spacing: .02em;
    font-family: var(--font-sans);
    transition: transform var(--d-3) var(--e-spring), border-radius var(--d-3) var(--e-expo);
}
.nav-mark:hover i { transform: rotate(-8deg) scale(1.06); border-radius: var(--r-full); }

.nav-links {
    display: flex; align-items: center; gap: 2px;
    margin-left: auto;
}

.nav-link {
    position: relative;
    padding: 9px 15px;
    font-size: var(--t-sm);
    font-weight: 450;
    color: var(--ink-50);
    border-radius: var(--r-full);
    transition: color var(--d-2) var(--e-out);
    white-space: nowrap;
}
.nav-link::before {
    content: "";
    position: absolute; inset: 0;
    border-radius: inherit;
    background: var(--ink);
    opacity: 0;
    transform: scale(.85);
    transition: opacity var(--d-2) var(--e-out), transform var(--d-3) var(--e-spring);
    z-index: -1;
}
.nav-link:hover { color: var(--ink); }
.nav-link.is-active { color: var(--paper); }
.nav-link.is-active::before { opacity: 1; transform: scale(1); }

.nav-actions { display: flex; align-items: center; gap: 8px; }

/* The ⌘K affordance — a real key cap, not a fake one. */
.nav-cmd {
    display: inline-flex; align-items: center; gap: 9px;
    height: 38px; padding: 0 12px 0 13px;
    border: 1px solid var(--line);
    border-radius: var(--r-full);
    background: var(--paper-raised);
    color: var(--ink-50);
    font-size: var(--t-sm);
    transition: border-color var(--d-2) var(--e-out), color var(--d-2) var(--e-out),
                box-shadow var(--d-2) var(--e-out), transform var(--d-2) var(--e-out);
}
.nav-cmd:hover {
    color: var(--ink); border-color: var(--line-strong);
    box-shadow: var(--shadow-1); transform: translateY(-1px);
}
.nav-cmd kbd {
    font-family: var(--font-mono);
    font-size: var(--t-2xs);
    padding: 3px 6px;
    border-radius: var(--r-xs);
    background: var(--paper-sunk);
    border: 1px solid var(--line);
    border-bottom-width: 2px;
    color: var(--ink-50);
    line-height: 1;
}

.nav-burger { display: none; }

@media (max-width: 900px) {
    .nav { padding-inline: 14px 10px; }
    .nav-links {
        position: fixed;
        inset: 84px 16px auto 16px;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 12px;
        background: var(--paper-raised);
        border: 1px solid var(--line);
        border-radius: var(--r-xl);
        box-shadow: var(--shadow-3);
        opacity: 0;
        transform: translateY(-12px) scale(.98);
        pointer-events: none;
        transition: opacity var(--d-2) var(--e-out), transform var(--d-3) var(--e-expo);
    }
    .nav.is-open .nav-links { opacity: 1; transform: none; pointer-events: auto; }
    .nav-link { padding: 13px 16px; font-size: 1rem; }
    .nav-cmd-label, .nav-cmd kbd { display: none; }
    .nav-cmd { width: 38px; padding: 0; justify-content: center; }
    .nav-burger { display: inline-grid; }
}

/* ---------------------------------------------------------------------------
   Section rhythm — every band shares one skeleton.
   --------------------------------------------------------------------------- */

.section { position: relative; padding-block: clamp(80px, 11vh, 150px); }
.section--sunk { background: linear-gradient(var(--paper-sunk), var(--paper-sunk)); }

.sec-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
    padding-bottom: 26px;
    margin-bottom: 46px;
    border-bottom: 1px solid var(--line);
}

.sec-index {
    display: flex; align-items: center; gap: 10px;
    color: var(--ink-35);
    margin-bottom: 18px;
}
.sec-index b {
    font-family: var(--font-mono);
    font-size: var(--t-2xs);
    font-weight: 500;
    color: var(--accent);
    letter-spacing: .12em;
}
.sec-index i {
    display: block; width: 30px; height: 1px;
    background: var(--line-strong);
    font-style: normal;
}

.sec-title {
    font-family: var(--font-display);
    font-optical-sizing: auto;
    font-variation-settings: "SOFT" 20, "WONK" 1;
    font-size: var(--t-h2);
    font-weight: 400;
    letter-spacing: -.025em;
}
.sec-title em {
    font-style: italic;
    font-variation-settings: "SOFT" 60, "WONK" 1;
    color: var(--accent);
}

.sec-note {
    max-width: 42ch;
    font-size: var(--t-sm);
    color: var(--ink-50);
    padding-bottom: 4px;
}

/* ---------------------------------------------------------------------------
   Hero
   --------------------------------------------------------------------------- */

.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-block: calc(var(--nav-h) + 60px) 60px;
}

.hero-badge {
    display: inline-flex; align-items: center; gap: 10px;
    height: 34px; padding: 0 15px 0 12px;
    border-radius: var(--r-full);
    background: var(--paper-raised);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-1);
    font-size: var(--t-xs);
    color: var(--ink-50);
    margin-bottom: clamp(22px, 4vh, 40px);
}
.hero-badge b { color: var(--ink); font-weight: 500; }
.hero-badge .dot {
    position: relative;
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--pine);
}
.hero-badge .dot::after {
    content: ""; position: absolute; inset: 0;
    border-radius: 50%; background: var(--pine);
    animation: ping 2.4s var(--e-out) infinite;
}
.hero-badge s {
    width: 1px; height: 14px; background: var(--line-strong);
    text-decoration: none;
}

/* The name. Sized to fill the measure — the single loudest thing on the page. */
.hero-name {
    font-family: var(--font-display);
    font-optical-sizing: auto;
    font-size: var(--t-display);
    font-weight: 350;
    line-height: .92;          /* room for the descender in "Dugad"          */
    letter-spacing: -.04em;
    font-variation-settings: "SOFT" 24, "WONK" 1;
    color: var(--ink);
    margin-bottom: clamp(24px, 4vh, 44px);
}
.hero-name .ln { display: block; }
.hero-name em {
    font-style: italic;
    font-weight: 400;
    font-variation-settings: "SOFT" 70, "WONK" 1;
    letter-spacing: -.03em;
}

.hero-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: clamp(28px, 5vw, 72px);
}

.hero-lead {
    max-width: 46ch;
    font-size: var(--t-lead);
    line-height: 1.55;
    color: var(--ink-50);
}
.hero-lead b { color: var(--ink); font-weight: 500; }

/* Role line — glyph-scrambles between titles (js/motion.js). */
.hero-role {
    display: inline-flex; align-items: baseline; gap: 10px;
    margin-top: 18px;
    font-family: var(--font-mono);
    font-size: var(--t-sm);
    color: var(--ink-35);
    letter-spacing: -.01em;
}
.hero-role b { color: var(--accent); font-weight: 500; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

/* Right-hand stat stack. */
.hero-figures {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding-left: clamp(20px, 3vw, 40px);
    border-left: 1px solid var(--line);
}
.hero-fig { padding: 10px 0; }
.hero-fig dt {
    font-family: var(--font-display);
    font-size: clamp(1.9rem, 3.4vw, 2.9rem);
    font-weight: 400;
    line-height: 1;
    color: var(--ink);
    letter-spacing: -.03em;
    font-variation-settings: "SOFT" 20;
}
.hero-fig dd {
    font-family: var(--font-mono);
    font-size: var(--t-2xs);
    text-transform: uppercase;
    letter-spacing: .11em;
    color: var(--ink-35);
    margin-top: 6px;
}

.hero-scroll {
    display: inline-flex; align-items: center; gap: 12px;
    margin-top: clamp(40px, 7vh, 76px);
    font-family: var(--font-mono);
    font-size: var(--t-2xs);
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--ink-35);
    transition: color var(--d-2) var(--e-out), gap var(--d-2) var(--e-out);
}
.hero-scroll:hover { color: var(--ink); gap: 16px; }
.hero-scroll .rule {
    display: block; width: 58px; height: 1px;
    background: var(--line-strong);
    position: relative; overflow: hidden;
}
.hero-scroll .rule::after {
    content: ""; position: absolute; inset: 0;
    background: var(--accent);
    animation: rule-sweep 2.6s var(--e-inout) infinite;
}

@media (max-width: 860px) {
    .hero-body { grid-template-columns: 1fr; align-items: start; }
    .hero-figures {
        flex-direction: row; flex-wrap: wrap; gap: 26px;
        padding-left: 0; padding-top: 24px;
        border-left: 0; border-top: 1px solid var(--line);
    }
}

/* ---------------------------------------------------------------------------
   Marquee — seamless, direction follows scroll direction.
   --------------------------------------------------------------------------- */

.marquee {
    position: relative;
    padding-block: 22px;
    border-block: 1px solid var(--line);
    background: var(--paper-raised);
    overflow: hidden;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
    display: flex; width: max-content;
    will-change: transform;
}
.marquee-item {
    display: inline-flex; align-items: center; gap: 14px;
    padding-inline: 26px;
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 1.9vw, 1.7rem);
    font-weight: 400;
    color: var(--ink-35);
    letter-spacing: -.02em;
    white-space: nowrap;
    transition: color var(--d-2) var(--e-out);
}
.marquee-item:hover { color: var(--ink); }
.marquee-item span { color: var(--accent); font-size: .6em; }

/* ---------------------------------------------------------------------------
   About band
   --------------------------------------------------------------------------- */

/* One column now that the site-summary sidebar is gone: the prose keeps a
   readable measure and the principles spread into two columns beneath it. */
.about-grid { display: block; }
.about-copy > p { max-width: 68ch; }

.about-copy p {
    font-size: var(--t-lead);
    line-height: 1.72;
    color: var(--ink-70);
}
.about-copy p + p { margin-top: 1.15em; }
.about-copy strong { color: var(--ink); font-weight: 500; }

/* Drop cap — pure editorial signal that a human set this type. */
.about-copy p:first-of-type::first-letter {
    float: left;
    font-family: var(--font-display);
    font-size: 3.9em;
    line-height: .78;
    font-weight: 400;
    padding: .06em .12em 0 0;
    color: var(--accent);
    font-variation-settings: "SOFT" 40, "WONK" 1;
}

.principles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 0 clamp(28px, 5vw, 72px);
    margin-top: 54px;
}
.principle {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 18px;
    padding: 22px 4px;
    border-top: 1px solid var(--line);
    transition: padding-left var(--d-3) var(--e-expo);
}
.principle:hover { padding-left: 14px; }
/* With two columns the last row needs a rule under each cell, not just the
   final one — nth-last-child(-n+2) covers both bottom cells. */
.principle:nth-last-child(-n+2) { border-bottom: 1px solid var(--line); }
@media (max-width: 700px) {
    .principle:nth-last-child(-n+2) { border-bottom: 0; }
    .principle:last-child { border-bottom: 1px solid var(--line); }
}
.principle b {
    font-family: var(--font-mono);
    font-size: var(--t-2xs);
    color: var(--accent);
    font-weight: 500;
    padding-top: 5px;
}
.principle h4 { font-size: 1.05rem; font-weight: 500; margin-bottom: 5px; }
.principle p { font-size: var(--t-sm); color: var(--ink-50); }

/* ---------------------------------------------------------------------------
   Stack band — auto-derived from the tags on real projects.
   --------------------------------------------------------------------------- */

.stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    overflow: hidden;
}
.stack-cell {
    position: relative;
    padding: 22px;
    background: var(--paper);
    transition: background var(--d-2) var(--e-out);
    overflow: hidden;
}
.stack-cell:hover { background: var(--paper-raised); }
.stack-cell b {
    display: block;
    font-size: .98rem; font-weight: 500; color: var(--ink);
    margin-bottom: 4px;
}
.stack-cell span {
    font-family: var(--font-mono); font-size: var(--t-2xs);
    color: var(--ink-35);
}
/* Usage bar — width set inline from real project counts. */
.stack-cell i {
    position: absolute; left: 0; bottom: 0;
    height: 2px; width: var(--pct, 0%);
    background: var(--accent);
    transform-origin: left;
    transform: scaleX(0);
    transition: transform var(--d-5) var(--e-expo);
}
.stack-cell.is-in i { transform: scaleX(1); }

/* ---------------------------------------------------------------------------
   Contact band
   --------------------------------------------------------------------------- */

.contact { text-align: center; }

.contact-line {
    font-family: var(--font-display);
    font-optical-sizing: auto;
    font-size: var(--t-h1);
    font-weight: 350;
    line-height: 1.02;
    letter-spacing: -.035em;
    font-variation-settings: "SOFT" 30, "WONK" 1;
    margin-bottom: 22px;
}
.contact-line em {
    font-style: italic;
    color: var(--accent);
    font-variation-settings: "SOFT" 70, "WONK" 1;
}

.contact-sub {
    max-width: 46ch; margin: 0 auto 38px;
    font-size: var(--t-lead); color: var(--ink-50);
}

.contact-cta { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }

/* Email chip that copies to clipboard on click. */
.mailchip {
    display: inline-flex; align-items: center; gap: 12px;
    height: 52px; padding: 0 10px 0 22px;
    border-radius: var(--r-full);
    border: 1px solid var(--line-strong);
    background: var(--paper-raised);
    font-family: var(--font-mono); font-size: var(--t-sm);
    color: var(--ink);
    transition: box-shadow var(--d-2) var(--e-out), transform var(--d-2) var(--e-out),
                border-color var(--d-2) var(--e-out);
}
.mailchip:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2);
    border-color: var(--ink-35);
}
.mailchip i {
    display: grid; place-items: center;
    width: 34px; height: 34px; border-radius: 50%;
    background: var(--paper-sunk); color: var(--ink-50);
    transition: background var(--d-2) var(--e-out), color var(--d-2) var(--e-out);
}
.mailchip:hover i { background: var(--ink); color: var(--paper); }

/* ---------------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------------- */

.footer {
    border-top: 1px solid var(--line);
    padding-block: 46px 34px;
    background: var(--paper-raised);
}
.footer-top {
    display: flex; justify-content: space-between; align-items: flex-start;
    gap: 40px; flex-wrap: wrap;
    padding-bottom: 34px;
    border-bottom: 1px solid var(--line);
}
.footer-word {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 7vw, 4.6rem);
    font-weight: 350; line-height: .9;
    letter-spacing: -.04em;
    color: var(--ink);
    font-variation-settings: "SOFT" 24, "WONK" 1;
}
.footer-nav { display: grid; grid-auto-flow: column; gap: 56px; }
.footer-col { display: grid; gap: 9px; align-content: start; }
.footer-col h5 {
    font-family: var(--font-mono); font-size: var(--t-2xs);
    text-transform: uppercase; letter-spacing: .12em;
    color: var(--ink-35); margin-bottom: 4px; font-weight: 500;
}
.footer-col a {
    font-size: var(--t-sm); color: var(--ink-50);
    display: inline-flex; align-items: center; gap: 7px;
    transition: color var(--d-2) var(--e-out), gap var(--d-2) var(--e-out);
    width: fit-content;
}
.footer-col a:hover { color: var(--ink); gap: 11px; }

.footer-bot {
    display: flex; justify-content: space-between; align-items: center;
    gap: 20px; flex-wrap: wrap;
    padding-top: 26px;
    font-family: var(--font-mono);
    font-size: var(--t-2xs);
    color: var(--ink-35);
}
.footer-meta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-meta > * { display: inline-flex; align-items: center; gap: 7px; }
.footer-meta button { color: inherit; transition: color var(--d-2) var(--e-out); }
.footer-meta button:hover { color: var(--ink); }
.footer-sep { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-20); }

@media (max-width: 720px) {
    .footer-nav { grid-auto-flow: row; grid-template-columns: 1fr 1fr; gap: 26px; }
}

/* ---------------------------------------------------------------------------
   Scroll progress rail — right edge, with section ticks.
   --------------------------------------------------------------------------- */

.rail {
    position: fixed;
    right: 22px; top: 50%;
    translate: 0 -50%;
    z-index: var(--z-rail);
    display: flex; flex-direction: column; align-items: flex-end; gap: 14px;
    opacity: 0;
    transition: opacity var(--d-3) var(--e-out);
}
.rail.is-on { opacity: 1; }

.rail-dot {
    position: relative;
    display: flex; align-items: center; gap: 10px;
    padding: 3px 0;
    color: var(--ink-35);
}
.rail-dot span {
    font-family: var(--font-mono); font-size: var(--t-2xs);
    opacity: 0; translate: 6px 0;
    transition: opacity var(--d-2) var(--e-out), translate var(--d-2) var(--e-out);
    white-space: nowrap;
}
.rail-dot i {
    display: block; width: 22px; height: 2px;
    border-radius: 2px;
    background: var(--ink-20);
    transition: width var(--d-3) var(--e-expo), background var(--d-2) var(--e-out);
}
.rail-dot:hover span { opacity: 1; translate: 0 0; }
.rail-dot:hover i { width: 30px; background: var(--ink-50); }
.rail-dot.is-active i { width: 38px; background: var(--accent); }
.rail-dot.is-active span { opacity: 1; translate: 0 0; color: var(--ink); }

@media (max-width: 1100px) { .rail { display: none; } }

/* Thin top progress line — the only chrome that survives on mobile. */
.progress {
    position: fixed; top: 0; left: 0;
    height: 2px; width: 0;
    background: linear-gradient(90deg, var(--accent), var(--accent-lift));
    z-index: var(--z-nav);
    transition: width .08s linear;
}