/* ============================================================
   Yuguda Muhammed — ML Engineer
   Dark-first design system. Light is an explicit opt-in via toggle.
   ============================================================ */

:root {
    --bg:        #08090A;
    --bg-sub:    #0E1012;
    --bg-lift:   #131619;
    --ink:       #F2F4EF;
    --ink-2:     #B6BAB2;
    --muted:     #82877D;
    --line:      #1D2124;
    --line-2:    #2A2F33;
    --accent:    #BEF264;
    --accent-dm: #8CB93C;
    --accent-sb: #BEF2641A;
    --card:      #0C0E10;
    --shadow:    0 1px 2px rgba(0,0,0,.5), 0 20px 50px rgba(0,0,0,.45);

    --sans: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

    --wrap: 1240px;
    --gut: 26px;
    --r: 14px;

    --ease: cubic-bezier(.22,.68,.24,1);
}

:root[data-theme="light"] {
    --bg:        #FAFAF7;
    --bg-sub:    #F1F1EC;
    --bg-lift:   #FFFFFF;
    --ink:       #0A0B0C;
    --ink-2:     #3C4046;
    --muted:     #666B63;
    --line:      #E2E2DC;
    --line-2:    #D2D2CA;
    --accent:    #4D7C0F;
    --accent-dm: #65A30D;
    --accent-sb: #4D7C0F14;
    --card:      #FFFFFF;
    --shadow:    0 1px 2px rgba(11,11,12,.05), 0 16px 40px rgba(11,11,12,.07);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.032em; line-height: 1.05; }
img { max-width: 100%; display: block; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }

.mono {
    font-family: var(--mono); font-size: 0.72rem;
    letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
}

.skip { position: absolute; left: -9999px; background: var(--accent); color: #0A0B0C; padding: 10px 16px; border-radius: 8px; z-index: 300; }
.skip:focus { left: 16px; top: 16px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* smooth cross-page fades where supported */
@view-transition { navigation: auto; }

/* ============================================================
   MOTION LAYER
   ============================================================ */

/* scroll reveal — set by JS, so no-JS users see content immediately */
[data-reveal] { opacity: 1; }
.js [data-reveal] {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity .7s var(--ease), transform .7s var(--ease);
    transition-delay: var(--d, 0ms);
    will-change: opacity, transform;
}
.js [data-reveal].in { opacity: 1; transform: none; }

/* clip-up reveal for headings */
/* inset() rejects negative values — a negative bottom made the ".in" rule
   invalid, so the heading stayed clipped to nothing forever. Pad the box
   instead (and pull the padding back off with a negative margin) so a plain
   inset(0) can clear descenders and the tight line-height's overflow. */
.js [data-reveal="mask"] {
    opacity: 1; transform: none;
    padding-bottom: .16em; margin-bottom: -.16em;
    clip-path: inset(0 0 100% 0);
    transition: clip-path .9s var(--ease);
    transition-delay: var(--d, 0ms);
}
.js [data-reveal="mask"].in { clip-path: inset(0 0 0 0); }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .js [data-reveal],
    .js [data-reveal="mask"] { opacity: 1 !important; transform: none !important; clip-path: none !important; transition: none !important; }
    .marquee-track { animation: none !important; }
    .pulse { animation: none !important; }
    .hero-canvas { display: none; }
    .descent .dot, .descent .path { animation: none !important; }
    @view-transition { navigation: none; }
}

/* ============================================================
   NAV
   ============================================================ */

.nav {
    position: sticky; top: 0; z-index: 60;
    background: color-mix(in srgb, var(--bg) 72%, transparent);
    backdrop-filter: saturate(160%) blur(16px);
    border-bottom: 1px solid transparent;
    transition: border-color .3s var(--ease), background .3s var(--ease);
}
.nav.stuck { border-bottom-color: var(--line); }

.nav-in {
    max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut);
    height: 68px; display: flex; align-items: center; gap: 18px;
}

.brand {
    display: flex; align-items: center; gap: 10px; margin-right: auto;
    font-weight: 600; font-size: 0.95rem; letter-spacing: -0.02em;
}
.brand .mark {
    width: 26px; height: 26px; border-radius: 7px; flex: none;
    background: var(--accent); color: #0A0B0C;
    display: grid; place-items: center;
    font-family: var(--mono); font-size: 0.62rem; font-weight: 500;
    transition: transform .4s var(--ease);
}
.brand:hover .mark { transform: rotate(-8deg) scale(1.06); }

.nav-links { display: flex; align-items: center; }
.nav-links a {
    position: relative; padding: 10px 13px;
    font-family: var(--mono); font-size: 0.72rem;
    letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
    transition: color .25s var(--ease);
}
.nav-links a::after {
    content: ""; position: absolute; left: 13px; right: 13px; bottom: 4px;
    height: 1px; background: var(--accent);
    transform: scaleX(0); transform-origin: left;
    transition: transform .35s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); }

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

.btn-ghost {
    display: inline-flex; align-items: center; gap: 8px;
    height: 34px; padding: 0 12px;
    background: transparent; color: var(--muted);
    border: 1px solid var(--line-2); border-radius: 8px;
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; cursor: pointer;
    transition: color .25s var(--ease), border-color .25s var(--ease);
}
.btn-ghost:hover { color: var(--accent); border-color: var(--accent-dm); }
.btn-icon { width: 34px; padding: 0; justify-content: center; font-size: 0.82rem; }

.btn-resume {
    display: inline-flex; align-items: center; height: 34px; padding: 0 15px;
    border: 1px solid var(--accent); border-radius: 8px; color: var(--accent);
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
    transition: background .3s var(--ease), color .3s var(--ease);
}
.btn-resume:hover { background: var(--accent); color: #0A0B0C; }

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

.hero { position: relative; min-height: min(92vh, 860px); display: flex; align-items: center; overflow: hidden; }

.hero-canvas {
    position: absolute; inset: 0; width: 100%; height: 100%;
    z-index: 0; pointer-events: none;
}
/* glow that tracks the pointer */
.hero::after {
    content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
    background: radial-gradient(560px circle at var(--mx, 50%) var(--my, 42%),
                color-mix(in srgb, var(--accent) 11%, transparent), transparent 62%);
    transition: opacity .6s var(--ease);
}
.hero .wrap { position: relative; z-index: 2; width: 100%; padding-top: 60px; padding-bottom: 60px; }

.hero .eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 30px; flex-wrap: wrap; }
.pulse {
    width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex: none;
    box-shadow: 0 0 0 0 var(--accent); animation: pulse 2.6s infinite;
}
@keyframes pulse { 70% { box-shadow: 0 0 0 8px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }

.hero h1 {
    font-size: clamp(2.7rem, 11.2vw, 9.5rem);
    font-weight: 700; letter-spacing: -0.05em; line-height: 0.9;
    text-transform: uppercase; color: var(--ink-2);
    margin: 0;
}
.hero h1 .accent { color: var(--accent); }

.hero .lede {
    margin: 34px 0 0; max-width: 44ch;
    font-size: clamp(1.02rem, 1.8vw, 1.32rem);
    color: var(--muted); line-height: 1.55;
}
.hero .lede strong { color: var(--ink); font-weight: 600; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }

.btn {
    position: relative; overflow: hidden;
    display: inline-flex; align-items: center; gap: 9px;
    height: 48px; padding: 0 24px; border-radius: 10px;
    font-size: 0.92rem; font-weight: 500; border: 1px solid transparent; cursor: pointer;
    transition: transform .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: #0A0B0C; }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 84%, #FFF); }
.btn-secondary { border-color: var(--line-2); color: var(--ink); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.scroll-hint {
    position: absolute; right: var(--gut); bottom: 34px; z-index: 2;
    display: flex; align-items: center; gap: 10px;
    font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.18em;
    text-transform: uppercase; color: var(--muted);
}
.scroll-hint .arw { animation: bob 2s var(--ease) infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(5px); } }
@media (prefers-reduced-motion: reduce) { .scroll-hint .arw { animation: none; } }

/* ============================================================
   MARQUEE
   ============================================================ */

.marquee {
    border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
    overflow: hidden; padding: 16px 0; background: var(--bg-sub);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}
.marquee-track { display: flex; width: max-content; animation: slide 46s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
    display: inline-flex; align-items: center; gap: 28px; white-space: nowrap;
    font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.16em;
    text-transform: uppercase; color: var(--muted); padding: 0 28px;
}
.marquee-track span::after { content: "◆"; color: var(--accent); font-size: 0.46rem; }
@keyframes slide { to { transform: translateX(-50%); } }

/* ============================================================
   SECTION FURNITURE
   ============================================================ */

.section { position: relative; padding: clamp(64px, 10vw, 128px) 0; }
.section + .section { border-top: 1px solid var(--line); }

.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 22px; margin-bottom: 52px; }
.sec-head .idx {
    font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.18em;
    color: var(--accent); display: block; margin-bottom: 14px;
}
.sec-head h2 { font-size: clamp(1.7rem, 4vw, 2.9rem); letter-spacing: -0.04em; }
.sec-head p { margin: 12px 0 0; color: var(--muted); max-width: 50ch; font-size: 0.98rem; }
.sec-link {
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--muted); white-space: nowrap; padding-bottom: 6px;
    border-bottom: 1px solid var(--line-2); transition: color .3s var(--ease), border-color .3s var(--ease);
}
.sec-link:hover { color: var(--accent); border-color: var(--accent); }

/* ============================================================
   WORK GRID
   ============================================================ */

.work-grid { display: grid; gap: clamp(30px, 4vw, 52px); grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.work-grid .feature { grid-column: 1 / -1; }

.work-card { display: block; }

.thumb {
    position: relative; overflow: hidden;
    border: 1px solid var(--line); border-radius: var(--r);
    background: var(--bg-sub); aspect-ratio: 16 / 10;
    transition: border-color .4s var(--ease), transform .5s var(--ease);
}
.feature .thumb { aspect-ratio: 21 / 9; }
.work-card:hover .thumb { border-color: var(--accent-dm); }
.thumb::after {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background: linear-gradient(180deg, transparent 55%, rgba(0,0,0,.35));
    opacity: 0; transition: opacity .45s var(--ease);
}
.work-card:hover .thumb::after { opacity: 1; }
.thumb img {
    width: 100%; height: 100%; object-fit: cover; object-position: top center;
    transition: transform .7s var(--ease), filter .5s var(--ease);
    filter: grayscale(.35) contrast(1.02);
}
.work-card:hover .thumb img { transform: scale(1.04); filter: grayscale(0); }

.poster {
    width: 100%; height: 100%; position: relative; overflow: hidden;
    display: flex; flex-direction: column; justify-content: space-between;
    padding: 30px; color: #F2F4EF;
    background:
        radial-gradient(120% 120% at 12% 8%, color-mix(in srgb, var(--p1, #1B4332) 82%, transparent), transparent 62%),
        linear-gradient(150deg, #0C0E10, #05070A);
}
/* faint grid so posters read as instrumentation, not decoration */
.poster::before {
    content: ""; position: absolute; inset: 0; opacity: .5;
    background-image:
        linear-gradient(to right, rgba(255,255,255,.045) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,.045) 1px, transparent 1px);
    background-size: 38px 38px;
    transition: transform .8s var(--ease);
}
.work-card:hover .poster::before { transform: scale(1.06); }
.poster .glyph {
    position: relative; font-size: clamp(1.35rem, 3.1vw, 2.15rem);
    font-weight: 600; letter-spacing: -0.035em; line-height: 1.14; max-width: 20ch;
}
.poster .foot {
    position: relative; font-family: var(--mono); font-size: 0.66rem;
    letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); opacity: .9;
}

.work-meta { display: flex; gap: 18px; margin-top: 20px; }
.work-num { font-family: var(--mono); font-size: 0.72rem; color: var(--accent); padding-top: 4px; flex: none; }
.work-body h3 { font-size: 1.18rem; display: inline-flex; align-items: baseline; gap: 8px; transition: color .3s var(--ease); }
.work-card:hover .work-body h3 { color: var(--accent); }
.work-body h3 .arw { font-size: 0.8em; color: var(--muted); transition: transform .3s var(--ease); }
.work-card:hover .work-body h3 .arw { transform: translate(3px, -3px); }
.work-body p { margin: 9px 0 0; color: var(--muted); font-size: 0.94rem; max-width: 62ch; }

.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; padding: 0; list-style: none; }
.tags li {
    font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.06em;
    color: var(--ink-2); background: var(--bg-sub);
    border: 1px solid var(--line); border-radius: 999px; padding: 4px 11px;
}
.tags li.hot { color: var(--accent); background: var(--accent-sb); border-color: color-mix(in srgb, var(--accent) 34%, transparent); }

/* ============================================================
   STATS  (+ gradient-descent plot)
   ============================================================ */

.stats-row { display: grid; gap: 48px; grid-template-columns: 1.05fr .95fr; align-items: center; }

.stats { display: grid; gap: 34px 28px; grid-template-columns: repeat(2, 1fr); }
.stat .n {
    font-size: clamp(2rem, 4.4vw, 3.1rem); font-weight: 600;
    letter-spacing: -0.05em; line-height: 1; color: var(--ink);
    font-variant-numeric: tabular-nums;
}
.stat .n .unit { color: var(--accent); }
.stat .l { margin-top: 11px; color: var(--muted); font-size: 0.88rem; max-width: 26ch; }

.descent {
    border: 1px solid var(--line); border-radius: var(--r);
    background: var(--card); padding: 22px; position: relative; overflow: hidden;
}
.descent figcaption {
    font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--muted); margin-bottom: 14px;
    display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap;
}
.descent figcaption b { color: var(--accent); font-weight: 500; }
.descent svg { width: 100%; height: auto; display: block; overflow: visible; }
.descent .contour { fill: none; stroke: var(--line-2); stroke-width: 1; }
.descent .contour.lit { stroke: color-mix(in srgb, var(--accent) 34%, transparent); }
.descent .path {
    fill: none; stroke: var(--accent); stroke-width: 1.6;
    stroke-dasharray: 420; stroke-dashoffset: 420;
    stroke-linecap: round; stroke-linejoin: round;
}
.descent.in .path { animation: draw 3.4s var(--ease) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.descent .dot { fill: var(--accent); }
.descent.in .dot { animation: walk 3.4s var(--ease) forwards; }
@keyframes walk { to { offset-distance: 100%; } }
.descent .step { fill: var(--muted); font-family: var(--mono); font-size: 7px; letter-spacing: .1em; }

/* ============================================================
   CAPABILITIES
   ============================================================ */

.cap-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.cap {
    position: relative; background: var(--card); border: 1px solid var(--line);
    border-radius: var(--r); padding: 30px; overflow: hidden;
    transition: border-color .4s var(--ease), transform .4s var(--ease);
}
.cap:hover { border-color: var(--line-2); transform: translateY(-3px); }
/* pointer-tracked sheen */
.cap::before {
    content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0;
    background: radial-gradient(280px circle at var(--cx, 50%) var(--cy, 0%), var(--accent-sb), transparent 70%);
    transition: opacity .45s var(--ease);
}
.cap:hover::before { opacity: 1; }
.cap .k {
    font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--accent); margin-bottom: 16px; display: block;
}
.cap h3 { font-size: 1.08rem; margin-bottom: 10px; position: relative; }
.cap p { margin: 0 0 18px; color: var(--muted); font-size: 0.92rem; position: relative; }
.cap ul { margin: 0; padding: 0; list-style: none; position: relative; }
.cap li {
    font-size: 0.87rem; color: var(--ink-2); padding: 9px 0 9px 20px;
    position: relative; border-top: 1px solid var(--line);
}
.cap li::before { content: "→"; position: absolute; left: 0; color: var(--accent); font-size: 0.78rem; }

/* ============================================================
   EXPERIENCE
   ============================================================ */

.xp { border-top: 1px solid var(--line); }
.xp-row {
    display: grid; gap: 8px 36px; grid-template-columns: 200px 1fr;
    padding: 30px 0; border-bottom: 1px solid var(--line);
    transition: background .4s var(--ease);
}
.xp-row:hover { background: var(--bg-sub); }
.xp-when { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--muted); padding-top: 5px; }
.xp-body h3 { font-size: 1.08rem; }
.xp-body .org { color: var(--accent); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; margin: 7px 0 12px; }
.xp-body ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 0.92rem; }
.xp-body li { margin-bottom: 6px; }
.xp-body strong { color: var(--ink); font-weight: 600; }

/* ============================================================
   COMPACT LIST
   ============================================================ */

.list { border-top: 1px solid var(--line); }
.list-row {
    display: flex; align-items: baseline; gap: 20px; flex-wrap: wrap;
    padding: 19px 14px 19px 4px; border-bottom: 1px solid var(--line);
    transition: background .35s var(--ease), padding-left .35s var(--ease);
}
.list-row:hover { background: var(--bg-sub); padding-left: 16px; }
.list-row .t { font-weight: 500; font-size: 0.98rem; transition: color .3s var(--ease); }
.list-row:hover .t { color: var(--accent); }
.list-row .d { color: var(--muted); font-size: 0.89rem; flex: 1 1 260px; }
.list-row .s {
    font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--muted);
}

/* ============================================================
   CONTACT
   ============================================================ */

.contact { text-align: center; padding: clamp(76px, 11vw, 140px) 0; }
.contact h2 { font-size: clamp(2rem, 6.6vw, 4.2rem); letter-spacing: -0.05em; max-width: 16ch; margin: 0 auto; text-transform: uppercase; }
.contact h2 .accent { color: var(--accent); }
.contact p { color: var(--muted); margin: 22px auto 36px; max-width: 44ch; }
.contact .hero-cta { justify-content: center; }

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

.foot { border-top: 1px solid var(--line); background: var(--bg-sub); }
.foot-in { max-width: var(--wrap); margin: 0 auto; padding: 58px var(--gut) 32px; display: grid; gap: 36px; grid-template-columns: 1.7fr repeat(3, 1fr); }
.foot h4 { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); font-weight: 500; margin-bottom: 16px; }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li a { display: inline-block; padding: 6px 0; font-size: 0.89rem; color: var(--ink-2); transition: color .3s var(--ease); }
.foot li a:hover { color: var(--accent); }
.foot .blurb { color: var(--muted); font-size: 0.89rem; max-width: 34ch; margin: 14px 0 0; }
.foot-bar {
    max-width: var(--wrap); margin: 0 auto; padding: 22px var(--gut) 38px;
    border-top: 1px solid var(--line); display: flex; justify-content: space-between;
    gap: 14px; flex-wrap: wrap; color: var(--muted);
    font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em;
}

/* ============================================================
   COMMAND PALETTE
   ============================================================ */

.cmdk[hidden] { display: none; }
.cmdk {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(4,5,6,.66); backdrop-filter: blur(5px);
    display: flex; align-items: flex-start; justify-content: center;
    padding: 12vh 20px 20px;
    animation: fade .2s var(--ease);
}
@keyframes fade { from { opacity: 0; } }
.cmdk-panel {
    width: 100%; max-width: 560px; background: var(--bg-lift);
    border: 1px solid var(--line-2); border-radius: 14px;
    box-shadow: var(--shadow); overflow: hidden;
    animation: pop .26s var(--ease);
}
@keyframes pop { from { opacity: 0; transform: translateY(-10px) scale(.98); } }
.cmdk-panel input {
    width: 100%; border: 0; outline: 0; background: transparent; color: var(--ink);
    font: inherit; font-size: 1rem; padding: 18px 20px; border-bottom: 1px solid var(--line);
}
.cmdk-list { list-style: none; margin: 0; padding: 8px; max-height: 330px; overflow-y: auto; }
.cmdk-list li a { display: flex; justify-content: space-between; gap: 14px; padding: 11px 13px; border-radius: 9px; font-size: 0.92rem; }
.cmdk-list li[aria-selected="true"] a, .cmdk-list li a:hover { background: var(--accent-sb); color: var(--accent); }
.cmdk-list .hint { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.cmdk-empty { padding: 24px; text-align: center; color: var(--muted); font-size: 0.9rem; }

/* ============================================================
   CASE STUDY PAGES
   ============================================================ */

.case { max-width: 780px; margin: 0 auto; padding: 0 var(--gut); }
.case-hero { padding: clamp(48px, 8vw, 96px) 0 36px; }
.back { display: inline-block; padding: 8px 0; margin-bottom: 24px; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); transition: color .3s var(--ease); }
.back:hover { color: var(--accent); }
.case-hero h1 { font-size: clamp(2.1rem, 6vw, 3.6rem); letter-spacing: -0.045em; line-height: 1; text-transform: uppercase; }
.case-hero .lede { margin: 22px 0 0; font-size: 1.08rem; color: var(--muted); max-width: 56ch; }

.case-facts {
    display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    padding: 28px 0; margin: 38px 0 8px;
    border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.case-facts .k { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; }
.case-facts .v { font-size: 0.93rem; color: var(--ink); }

.block { margin: 46px 0; }
.block h2 { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; font-weight: 500; }
.block h3 { font-size: 1.16rem; margin-bottom: 12px; }
.block p { margin: 0 0 17px; color: var(--ink-2); }
.block p:last-child { margin-bottom: 0; }
.block code { font-family: var(--mono); font-size: 0.85em; background: var(--bg-sub); border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; color: var(--accent); }
.block ul { color: var(--ink-2); padding-left: 20px; }
.block li { margin-bottom: 9px; }

.figure { margin: 32px 0; }
.figure img { width: 100%; border: 1px solid var(--line); border-radius: 10px; }
.figure figcaption { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.1em; color: var(--muted); margin-top: 12px; }

.note { border-left: 2px solid var(--accent); background: var(--accent-sb); padding: 16px 20px; border-radius: 0 8px 8px 0; color: var(--ink-2); font-size: 0.93rem; }

.case-next { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; border-top: 1px solid var(--line); margin-top: 60px; padding: 28px 0 76px; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.case-next a { transition: color .3s var(--ease); }
.case-next a:hover { color: var(--accent); }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 980px) {
    .stats-row { grid-template-columns: 1fr; gap: 40px; }
    .foot-in { grid-template-columns: 1fr 1fr; }
    .xp-row { grid-template-columns: 1fr; }
    .xp-when { padding-top: 0; }
}

@media (max-width: 700px) {
    :root { --gut: 18px; }
    .nav-links, .scroll-hint { display: none; }
    .nav-in { height: 60px; }
    .btn-ghost span:first-child { display: none; }
    .btn-ghost { padding: 0 10px; }
    .hero { min-height: 84vh; }
    .hero h1 { font-size: clamp(2.4rem, 13vw, 4rem); }
    .sec-head { flex-direction: column; align-items: flex-start; gap: 10px; }
    .feature .thumb { aspect-ratio: 16 / 10; }
    .stats { grid-template-columns: 1fr 1fr; gap: 26px 18px; }
    .foot-in { grid-template-columns: 1fr; gap: 28px; }
    .btn { width: 100%; justify-content: center; }
}
/* ============================================================
   CONTACT FORM  (Netlify)
   ============================================================ */

.contact-wrap { max-width: 620px; margin: 0 auto; text-align: left; }

.contact-form { display: grid; gap: 18px; margin-top: 38px; }

.field { display: grid; gap: 8px; }
.field label {
    font-family: var(--mono); font-size: 0.68rem;
    letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
}
.field label .opt { text-transform: none; letter-spacing: 0; color: var(--muted); }

.field input, .field textarea, .field select {
    width: 100%; padding: 13px 15px;
    border: 1px solid var(--line); border-radius: 10px;
    background: var(--card); color: var(--ink);
    font-family: inherit; font-size: 0.95rem;
    transition: border-color .25s var(--ease), background .25s var(--ease);
}
.field select { appearance: none; cursor: pointer; }
.field select option { background: var(--bg-lift); color: var(--ink); }
.field textarea { min-height: 120px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: var(--muted); opacity: .75; }
.field input:focus, .field textarea:focus, .field select:focus {
    outline: none; border-color: var(--accent); background: var(--accent-sb);
}

/* honeypot: off-screen, still in the DOM for bots that parse it */
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.submit-btn {
    justify-self: start;
    display: inline-flex; align-items: center; gap: 9px;
    height: 48px; padding: 0 26px; border: none; border-radius: 10px;
    background: var(--accent); color: #0A0B0C;
    font-family: inherit; font-size: 0.94rem; font-weight: 600; cursor: pointer;
    transition: transform .25s var(--ease), background .25s var(--ease), opacity .25s var(--ease);
}
.submit-btn:hover:not(:disabled) { transform: translateY(-2px); background: color-mix(in srgb, var(--accent) 84%, #FFF); }
.submit-btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.form-status { font-size: 0.88rem; min-height: 1.3em; margin: 0; color: var(--muted); }
.form-status.ok { color: var(--accent); }
.form-status.err { color: #FCA5A5; }

.form-fallback { margin-top: 22px; font-size: 0.88rem; color: var(--muted); }
.form-fallback a { color: var(--accent); border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); }

/* ============================================================
   VIDEO + METRIC STRIP  (used by the internal-tooling case)
   ============================================================ */

.video-frame {
    margin: 24px 0 10px; border: 1px solid var(--line);
    border-radius: var(--r); overflow: hidden; background: #000;
}
.video-frame video { display: block; width: 100%; height: auto; }

.metrics { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0; padding: 0; list-style: none; }
.metric {
    flex: 1 1 140px; padding: 16px 18px;
    border: 1px solid var(--line); border-radius: 10px; background: var(--card);
}
.metric strong {
    display: block; font-size: 1.4rem; font-weight: 600; letter-spacing: -0.03em;
    color: var(--accent); font-variant-numeric: tabular-nums;
}
.metric span { font-size: 0.76rem; color: var(--muted); }

/* ============================================================
   FOOTER CREDENTIAL BADGE
   ============================================================ */

.badge {
    display: inline-flex; align-items: center; gap: 11px;
    padding: 9px 15px; border: 1px solid var(--line); border-radius: 999px;
    background: var(--card); font-size: 0.82rem; color: var(--ink-2);
    transition: border-color .3s var(--ease);
}
.badge:hover { border-color: var(--accent); }
.badge-mark {
    width: 27px; height: 27px; border-radius: 50%; flex: none;
    display: grid; place-items: center;
    background: var(--accent); color: #0A0B0C;
    font-family: var(--mono); font-size: 0.62rem; font-weight: 500;
}
.badge small { display: block; font-size: 0.7rem; color: var(--muted); }

@media (max-width: 700px) {
    .submit-btn { width: 100%; justify-content: center; }
}

.cap-note { font-size: 0.84rem; color: var(--muted); margin: 12px 0 0; }
.cap-note a { color: var(--accent); border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); }
.cap .tags { margin-top: 18px; }
.cap em { font-style: italic; color: var(--ink); }