/* Miguel Sánchez Tello — portfolio.
   Brand: Nutello (antique gold + heraldic black + parchment). Concept: the
   career as a traced test run, set against a Nasrid lattice from Granada.
   Data colours (--auto / --med / --ai) are a validated 3-slot categorical
   palette stepped per theme; they encode domain and nothing else.
   --bad / --good mark the problem and the fix in project write-ups. */

:root {
  color-scheme: dark;
  --bg: #0e0d0a;
  --bg-alt: #12100b;
  --surface: #17140e;
  --surface-2: #201b12;
  --line: #2c2617;
  --line-2: #43391f;
  --text: #efe7d0;
  --text-2: #bcae8a;
  --text-3: #8a7d5c;
  --accent: #d8b45a;
  --accent-strong: #e6c55a;
  --accent-ink: #17140d;
  --accent-soft: rgba(216, 180, 90, 0.13);
  --bad: #e0707a;
  --bad-soft: rgba(224, 112, 122, 0.12);
  --good: #8fc48a;
  --good-soft: rgba(143, 196, 138, 0.13);
  --auto: #3a97d6;
  --med: #c44a5c;
  --ai: #b58c26;
  --shadow: 0 1px 0 rgba(255, 240, 200, 0.03) inset, 0 24px 60px -34px rgba(0, 0, 0, 0.9);
  --display: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --nmw: 215px;
  --duw: 72px;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #efe9da; --bg-alt: #e8e1cf; --surface: #fbf8f0; --surface-2: #f3ecdb;
    --line: #ddd3bb; --line-2: #c3b58f;
    --text: #17140d; --text-2: #574d38; --text-3: #7f7357;
    --accent: #8c6a12; --accent-strong: #a67c1a; --accent-ink: #fbf8f0; --accent-soft: #f3e7c4;
    --bad: #7e1c1c; --bad-soft: rgba(126, 28, 28, 0.09);
    --good: #3f6b2e; --good-soft: rgba(63, 107, 46, 0.11);
    --auto: #1f78b8; --med: #9c3030; --ai: #a67c1a;
    --shadow: 0 22px 44px -32px rgba(60, 44, 10, 0.45);
  }
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #efe9da; --bg-alt: #e8e1cf; --surface: #fbf8f0; --surface-2: #f3ecdb;
  --line: #ddd3bb; --line-2: #c3b58f;
  --text: #17140d; --text-2: #574d38; --text-3: #7f7357;
  --accent: #8c6a12; --accent-strong: #a67c1a; --accent-ink: #fbf8f0; --accent-soft: #f3e7c4;
  --bad: #7e1c1c; --bad-soft: rgba(126, 28, 28, 0.09);
  --good: #3f6b2e; --good-soft: rgba(63, 107, 46, 0.11);
  --auto: #1f78b8; --med: #9c3030; --ai: #a67c1a;
  --shadow: 0 22px 44px -32px rgba(60, 44, 10, 0.45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body { background: var(--bg); color: var(--text); font: 400 16px/1.6 var(--sans); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.mono { font-family: var(--mono); }
.muted { color: var(--text-3); }
.nowrap { white-space: nowrap; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); }

.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 8px; font-weight: 600; text-decoration: none; }
.skip:focus { top: 12px; }

/* progress + nav ------------------------------------------------------------ */
.progress { position: fixed; inset: 0 0 auto; height: 2px; z-index: 60; pointer-events: none; }
.progress span { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-strong)); transform-origin: 0 50%; transform: scaleX(var(--p, 0)); }
.nav { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 64px;
  padding: 0 clamp(16px, 4vw, 40px); background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 500 13px var(--mono); letter-spacing: .02em; white-space: nowrap; }
.brand svg { width: 22px; height: 22px; fill: none; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; }
.nav ul { display: flex; gap: 4px; }
.nav ul a { display: block; padding: 7px 12px; border-radius: 999px; text-decoration: none; font: 500 12px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-2); transition: color .2s, background .2s; }
.nav ul a:hover { color: var(--text); }
.nav ul a.active { color: var(--accent); background: var(--accent-soft); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.icon-btn { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; border: 1px solid var(--line-2); transition: border-color .2s, transform .15s, background .2s; }
.icon-btn:hover { border-color: var(--accent); }
.icon-btn:active { transform: scale(.94); }
.icon-btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.i-moon { display: none; }
:root[data-theme="light"] .i-sun { display: none; }
:root[data-theme="light"] .i-moon { display: block; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .i-sun { display: none; }
  :root:not([data-theme="dark"]) .i-moon { display: block; }
}

/* buttons -------------------------------------------------------------------- */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 20px; border-radius: 12px; font: 600 15px var(--sans); text-decoration: none; white-space: nowrap; transition: transform .15s, box-shadow .2s, background .2s, border-color .2s; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(.98); }
.btn-accent { background: var(--accent); color: var(--accent-ink); box-shadow: 0 10px 30px -14px var(--accent); }
.btn-accent:hover { background: var(--accent-strong); }
.btn-ghost { border: 1px solid var(--line-2); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-sm { padding: 9px 14px; font-size: 13px; border-radius: 10px; }

/* hero + Nasrid lattice ------------------------------------------------------- */
.hero { position: relative; padding: clamp(40px, 7vw, 96px) 0 48px; overflow: hidden; isolation: isolate; }
.lattice { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.lattice svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.lattice path { fill: none; vector-effect: non-scaling-stroke; }
.lat-base path { stroke: var(--accent); stroke-width: 1; opacity: .2; }
:root[data-theme="light"] .lat-base path { opacity: .3; }
@media (prefers-color-scheme: light) { :root:not([data-theme="dark"]) .lat-base path { opacity: .3; } }
.lat-hi { -webkit-mask-image: radial-gradient(circle 260px at var(--mx, 70%) var(--my, 35%), #000 0%, transparent 70%);
  mask-image: radial-gradient(circle 260px at var(--mx, 70%) var(--my, 35%), #000 0%, transparent 70%); }
.lat-hi path { stroke: var(--accent-strong); stroke-width: 1.4; opacity: .85; }
.js .lat-base path { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 2.2s cubic-bezier(.3,.6,.2,1) var(--d, 0s) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.hero::after { content: ""; position: absolute; z-index: -1; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 60% 70% at 78% 30%, var(--accent-soft), transparent 70%); }
/* hero edge: the lattice fades out under the stats and a gold rule with an
   eight-pointed star closes the landing view before section 01 */
.hero .lattice {
  -webkit-mask-image: linear-gradient(100deg, transparent 8%, #000 55%), linear-gradient(180deg, #000 45%, transparent 92%);
  -webkit-mask-composite: source-in; mask-image: linear-gradient(100deg, transparent 8%, #000 55%), linear-gradient(180deg, #000 45%, transparent 92%); mask-composite: intersect; }
.edge-ornament { display: flex; align-items: center; justify-content: center; gap: 16px; max-width: 1180px; margin: 56px auto 0; padding: 0 clamp(16px, 4vw, 40px); }
.edge-ornament i { flex: 1; height: 1px; background: linear-gradient(90deg, transparent, var(--line-2)); }
.edge-ornament i:last-child { background: linear-gradient(90deg, var(--line-2), transparent); }
.edge-ornament svg { width: 22px; height: 22px; fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-linejoin: round; }

.hero-inner { position: relative; display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px; border-radius: 999px; background: color-mix(in srgb, var(--bg) 70%, transparent);
  border: 1px solid var(--line-2); font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-2); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--good); flex: none; animation: ping 2.4s infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--good) 60%, transparent); } 70%, 100% { box-shadow: 0 0 0 8px transparent; } }
.hero h1 { margin: 22px 0 20px; font: 700 clamp(2.6rem, 5.8vw, 5.1rem)/1.0 var(--display); letter-spacing: -0.025em; font-optical-sizing: auto; }
.hero h1 em { font-style: italic; font-weight: 500; color: var(--accent); }
.lede { max-width: 36em; font-size: clamp(1rem, 1.3vw, 1.12rem); color: var(--text-2); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.socials { display: flex; gap: 20px; margin-top: 24px; font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.socials a { color: var(--text-3); text-decoration: none; border-bottom: 1px solid var(--line-2); padding-bottom: 2px; transition: color .2s, border-color .2s; }
.socials a:hover { color: var(--accent); border-color: var(--accent); }

.term { background: color-mix(in srgb, var(--surface) 92%, transparent); border: 1px solid var(--line-2); border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; min-width: 0; backdrop-filter: blur(4px); }
.term-bar { display: flex; align-items: center; gap: 7px; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.term-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line-2); }
.term-bar span { margin-left: 8px; font: 500 12px var(--mono); color: var(--text-3); }
.term-body { padding: 18px 18px 20px; font: 400 12.5px/1.85 var(--mono); color: var(--text); overflow-x: auto; white-space: pre; min-height: 17.5em; }
.term-body .p { color: var(--accent); }
.term-body .k { font-weight: 500; }
.term-body .d, .term-body .m { color: var(--text-3); }
.term-body .ok { color: var(--good); font-weight: 500; }
.term-body .live { color: var(--accent); font-weight: 500; animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.term-body .caret { display: inline-block; width: .6em; height: 1.1em; vertical-align: -.2em; background: var(--accent); animation: blink 1s steps(2, start) infinite; }
@keyframes blink { to { visibility: hidden; } }

.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-top: clamp(40px, 6vw, 72px); }
.stat { background: color-mix(in srgb, var(--surface) 90%, transparent); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px 18px; }
.stat dt { font: 500 clamp(1.7rem, 2.6vw, 2.2rem)/1 var(--mono); letter-spacing: -.03em; color: var(--accent); }
.stat dt small { font-size: .5em; margin-left: 3px; color: var(--text-2); font-weight: 400; letter-spacing: 0; }
.stat dd { margin-top: 10px; font-size: 13px; line-height: 1.45; color: var(--text-2); }

/* sections ------------------------------------------------------------------ */
.section { padding: clamp(72px, 10vw, 128px) 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.sec-head { max-width: 780px; margin-bottom: clamp(32px, 5vw, 56px); }
.kicker { display: flex; align-items: center; gap: 12px; font: 500 12px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.kicker::after { content: ""; width: 48px; height: 1px; background: currentColor; opacity: .6; }
h2 { margin: 14px 0 16px; font: 700 clamp(2rem, 4.4vw, 3.5rem)/1.05 var(--display); letter-spacing: -0.02em; }
h2 .hl { font-style: italic; font-weight: 500; }
.hl { color: var(--accent); }
.sec-head > p:last-child { color: var(--text-2); font-size: 1.06rem; }
.sec-head b.hl { font-weight: 600; font-style: normal; }

mark { color: inherit; background: none; padding: 0 .15em; border-radius: 4px; font-weight: 600; }
mark.bad { color: var(--bad); background: var(--bad-soft); }
mark.good { color: var(--good); background: var(--good-soft); }

/* cards ------------------------------------------------------------------------ */
.case { position: relative; display: block; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); overflow: hidden; text-decoration: none; transition: border-color .25s; }
.case:hover { border-color: var(--line-2); }
.spot::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .3s; z-index: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), var(--accent-soft), transparent 60%); }
.spot:hover::before { opacity: 1; }
.case > *, .tool > * { position: relative; }
.case-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.meta { font: 500 12px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); }
.badge { font: 600 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; padding: 5px 10px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); white-space: nowrap; text-decoration: none; }
.badge-quiet { background: var(--accent-soft); color: var(--accent); }
.badge-link { background: none; border: 1px solid var(--line-2); color: var(--text-2); }
.badge-link:hover { color: var(--accent); border-color: var(--accent); }
.case h3 { margin: 10px 0 6px; font: 700 clamp(1.4rem, 2.3vw, 1.9rem)/1.15 var(--display); letter-spacing: -0.01em; }
.case-sub { color: var(--text-2); max-width: 48em; }

.flagship { padding: clamp(22px, 3.4vw, 40px); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.flagship h3 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
.arch { margin: 26px 0 8px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-alt); overflow-x: auto; }
.arch svg { display: block; width: 100%; min-width: 720px; height: auto; padding: 8px; }
.a-node rect { fill: var(--surface); stroke: var(--line-2); stroke-width: 1.2; }
.a-end > rect { stroke: var(--accent); }
.a-racks rect { fill: var(--surface-2); stroke: var(--line-2); }
.a-t { fill: var(--text); font: 600 15px var(--sans); text-anchor: middle; }
.a-s { fill: var(--text-3); font: 400 11.5px var(--mono); text-anchor: middle; }
.a-line { fill: none; stroke: var(--text-3); stroke-width: 1.4; stroke-dasharray: 4 5; }
.a-arrow { fill: none; stroke: var(--text-3); stroke-width: 1.4; }
.a-pulse { fill: var(--accent); }

.pao { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 22px; }
.pao > div { background: var(--bg-alt); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.pao dt { font: 600 11px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; }
.pao dd { font-size: 14.5px; line-height: 1.6; }
.ticks { margin-top: 8px; display: grid; gap: 5px; }
.ticks li { position: relative; padding-left: 20px; }
.ticks li::before { content: "✓"; position: absolute; left: 0; color: var(--good); font-weight: 600; }
.pao.compact { grid-template-columns: 1fr; gap: 0; margin-top: 16px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.pao.compact > div { border: 0; border-radius: 0; display: grid; grid-template-columns: 92px 1fr; gap: 12px; padding: 12px 16px; }
.pao.compact > div + div { border-top: 1px solid var(--line); }
.pao.compact dt { margin: 3px 0 0; }
.pao.compact dd { font-size: 14px; }

.chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.chips li { font: 500 12px var(--mono); color: var(--text-2); border: 1px solid var(--line-2); border-radius: 8px; padding: 4px 9px; white-space: nowrap; transition: color .2s, border-color .2s; }
.chips li:hover { color: var(--accent); border-color: var(--accent); }

.case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
.case-grid .case { display: flex; flex-direction: column; }
.shot { aspect-ratio: 16 / 9; overflow: hidden; border-bottom: 1px solid var(--line); background: #0b0a08; }
.shot img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; transition: transform .6s cubic-bezier(.2,.8,.2,1); }
.shot-top img { object-position: 50% 0; }
.case:hover .shot img { transform: scale(1.035); }
.case-body { padding: 22px 24px 26px; }

/* homelab map ------------------------------------------------------------------ */
.homelab { padding: clamp(22px, 3.4vw, 40px); margin-top: 20px; }
.lab-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; margin-top: 22px; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 14px; background: var(--bg-alt); }
.lab-status { display: inline-flex; align-items: center; gap: 9px; min-width: 200px; font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--good); }
.lab-status[data-state="incident"] { color: var(--bad); }
.lab-status[data-state="incident"] .dot { background: var(--bad); }
.heal-steps { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; flex: 1; }
.heal-steps button { display: inline-flex; align-items: center; gap: 7px; padding: 5px 12px 5px 5px; border-radius: 999px; border: 1px solid var(--line-2);
  font: 500 13px var(--sans); color: var(--text-2); transition: background .25s, border-color .25s, color .25s; }
.heal-steps button span { width: 21px; height: 21px; border-radius: 50%; display: grid; place-items: center; font: 500 11px var(--mono);
  background: var(--surface); border: 1px solid var(--line-2); color: var(--text-3); transition: all .25s; }
.heal-steps .human button { border-style: dashed; }
.heal-steps button:hover { border-color: var(--accent); color: var(--text); }
.heal-steps button.done span { background: var(--good-soft); border-color: var(--good); color: var(--good); }
.heal-steps button[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--text); }
.heal-steps button[aria-pressed="true"] span { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.heal-say { margin: 14px 2px; min-height: 1.6em; font-size: 15px; color: var(--text-2); }
.heal-say b { color: var(--text); font-weight: 600; }
.lab-map { position: relative; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-alt); overflow-x: auto; transition: border-color .3s; }
.lab-map.incident { border-color: color-mix(in srgb, var(--bad) 55%, var(--line)); }
.lab-map.incident::before { content: "simulated incident"; position: absolute; left: 59%; top: 7.5%; transform: translate(-50%, -50%); z-index: 1; white-space: nowrap;
  font: 600 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--bad); background: var(--bad-soft);
  border: 1px solid color-mix(in srgb, var(--bad) 45%, transparent); padding: 4px 9px; border-radius: 999px; }
.lab-map svg { display: block; width: 100%; min-width: 760px; height: auto; padding: 6px; }
.lab-map .host > rect { fill: none; stroke: var(--line-2); stroke-width: 1.3; stroke-dasharray: 2 5; }
.lab-map .nd > rect, .lab-map .l-clients rect { fill: var(--surface); stroke: var(--line-2); stroke-width: 1.2; transition: stroke .25s, fill .25s; }
.lab-map .l-hostish { fill: var(--surface) !important; }
.lab-map .nd { cursor: pointer; outline: none; }
.lab-map .nd:hover > rect, .lab-map .nd:focus-visible > rect { stroke: var(--accent); fill: var(--surface-2); }
.l-t { fill: var(--text); font: 600 14px var(--sans); text-anchor: middle; pointer-events: none; }
.l-s { fill: var(--text-3); font: 400 11px var(--mono); text-anchor: middle; pointer-events: none; }
.l-left { text-anchor: start; }
.l-h { fill: var(--accent); font: 700 16px var(--display); letter-spacing: .04em; }
.l-c { fill: var(--text-2); font: 500 10.5px var(--mono); text-anchor: middle; pointer-events: none; }
.l-wire { fill: none; stroke: var(--line-2); stroke-width: 1.3; }
.l-arrow { fill: none; stroke: var(--line-2); stroke-width: 1.4; }
.l-beat { fill: var(--good); animation: pulse 2s ease-in-out infinite; }
.l-flag, .l-bubble { opacity: 0; transition: opacity .3s; }
.l-flag circle { fill: var(--bad); }
.l-fx { fill: #fff; font: 700 13px var(--sans); text-anchor: middle; }
.l-bubble rect { fill: var(--accent-soft); stroke: var(--accent); }
.l-bt { fill: var(--accent); }
.h-path { fill: none; stroke: var(--accent); stroke-width: 2.4; stroke-dasharray: 7 7; opacity: 0; transition: opacity .3s; }
@keyframes flow { to { stroke-dashoffset: -28; } }

#lab-svg[data-step="1"] #n-docker > rect, #lab-svg[data-step="2"] #n-docker > rect,
#lab-svg[data-step="3"] #n-docker > rect, #lab-svg[data-step="4"] #n-docker > rect { stroke: var(--bad); fill: var(--bad-soft); }
#lab-svg[data-step="1"] .l-flag, #lab-svg[data-step="2"] .l-flag, #lab-svg[data-step="3"] .l-flag,
#lab-svg[data-step="4"] .l-flag, #lab-svg[data-step="5"] .l-flag { opacity: 1; }
#lab-svg[data-step="1"] .l-flag { animation: pulse 1s ease-in-out infinite; }
#lab-svg[data-step="5"] .l-flag circle { fill: var(--good); }
#lab-svg[data-step="5"] #n-docker > rect { stroke: var(--good); fill: var(--good-soft); }
#lab-svg[data-step="2"] #n-hermes > rect { stroke: var(--accent); fill: var(--accent-soft); }
#lab-svg[data-step="2"] #h1, #lab-svg[data-step="3"] #h2, #lab-svg[data-step="5"] #h4 { opacity: 1; animation: flow 1s linear infinite; }
#lab-svg[data-step="3"] #n-phone > rect, #lab-svg[data-step="4"] #n-phone > rect { stroke: var(--accent); fill: var(--accent-soft); }
#lab-svg[data-step="3"] .l-bubble, #lab-svg[data-step="4"] .l-bubble { opacity: 1; }
#lab-svg[data-step="5"] #n-opencode rect { stroke: var(--accent); fill: var(--accent-soft); }

.l-ok { fill: var(--good); transition: opacity .3s; }
#lab-svg[data-step="1"] #n-docker .l-ok, #lab-svg[data-step="2"] #n-docker .l-ok,
#lab-svg[data-step="3"] #n-docker .l-ok, #lab-svg[data-step="4"] #n-docker .l-ok, #lab-svg[data-step="5"] #n-docker .l-ok { opacity: 0; }
.lab-info { margin-top: 14px; background: var(--bg-alt); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; min-height: 92px; }
.lab-info .meta { color: var(--accent); margin-bottom: 6px; }
.lab-info p:last-child { font-size: 14px; color: var(--text-2); }

/* eCall simulator ------------------------------------------------------------- */
.ecall { padding: clamp(22px, 3.4vw, 40px); margin-top: 20px; }
.ecall-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 18px; }
.ecall-ctl { display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.seg { display: inline-flex; padding: 3px; border: 1px solid var(--line-2); border-radius: 12px; background: var(--bg-alt); }
.seg button { padding: 7px 12px; border-radius: 9px; font: 500 12px var(--mono); color: var(--text-2); white-space: nowrap; transition: background .2s, color .2s; }
.seg button[aria-checked="true"] { background: var(--accent-soft); color: var(--accent); }
.ecall-body { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 18px; margin-top: 22px; }
.ecall-scene { border: 1px solid var(--line); border-radius: 14px; background: var(--bg-alt); overflow: hidden; }
.ecall-scene svg { display: block; width: 100%; height: auto; }
.e-road { stroke: var(--line-2); stroke-width: 2; }
.e-dash { stroke-dasharray: 16 12; stroke-width: 1.4; }
.e-wall rect { fill: var(--surface-2); stroke: var(--text-3); }
.e-wall path { stroke: var(--bad); stroke-width: 4; }
.e-car { transition: transform .95s cubic-bezier(.55, 0, .9, .45); }
.e-body { fill: var(--surface-2); stroke: var(--accent); stroke-width: 2; }
.e-win { fill: var(--bg-alt); stroke: var(--accent); stroke-width: 1.4; }
.e-wheel { fill: var(--bg); stroke: var(--text-2); stroke-width: 3; }
.e-bag { fill: #fff8e8; opacity: .9; transform-box: fill-box; transform-origin: center; transform: scale(0); transition: transform .25s cubic-bezier(.2, 1.6, .4, 1); }
.e-waves path { fill: none; stroke: var(--accent); stroke-width: 2.4; stroke-linecap: round; opacity: 0; }
.e-burst path { fill: var(--accent-strong); opacity: 0; transform-box: fill-box; transform-origin: center; transform: scale(.3); transition: opacity .15s, transform .25s; }
.e-tower path { fill: none; stroke: var(--text-3); stroke-width: 2; }
.e-tower circle { fill: var(--text-3); }
.e-psap rect { fill: var(--surface); stroke: var(--line-2); stroke-width: 1.5; transition: stroke .3s, fill .3s; }
.e-psap path { stroke: var(--line-2); stroke-width: 3; stroke-linecap: round; }
.e-psap-t { fill: var(--text); font: 700 18px var(--display); text-anchor: middle; }
.e-psap-s { fill: var(--text-3); font: 500 10px var(--mono); text-anchor: middle; }
.e-link { fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-dasharray: 5 7; opacity: 0; }
.e-msd { fill: var(--accent-strong); opacity: 0; }
.e-say { opacity: 0; transform: translateY(6px); transition: opacity .3s, transform .3s; }
.e-say rect { fill: var(--accent); }
.e-say text { fill: var(--accent-ink); font: 600 12px var(--sans); text-anchor: middle; }
.ecall-scene.crashed .e-car { transform: translateX(206px); }
.ecall-scene.crashed .e-burst path { opacity: 1; transform: scale(1); }
.ecall-scene.bagged .e-bag { transform: scale(1); }
.ecall-scene.bagged .e-burst path { opacity: 0; transition-delay: .3s; }
.ecall-scene.calling .e-waves path { animation: wave 1.2s ease-out infinite; }
.ecall-scene.calling .e-waves path:nth-child(2) { animation-delay: .2s; }
.ecall-scene.calling .e-waves path:nth-child(3) { animation-delay: .4s; }
@keyframes wave { 0% { opacity: 0; } 30% { opacity: 1; } 100% { opacity: 0; } }
.ecall-scene.calling .e-link { opacity: .8; animation: flow 1s linear infinite; }
.ecall-scene.sent .e-msd { opacity: 1; }
.ecall-scene.talking .e-psap rect { stroke: var(--good); fill: var(--good-soft); }
.ecall-scene.talking .e-say { opacity: 1; transform: none; }
.ecall-scene.reset .e-car, .ecall-scene.reset .e-bag { transition: none; }
.ecall-log { border: 1px solid var(--line); border-radius: 14px; background: var(--bg-alt); padding: 14px 16px; font: 400 12.5px/1.7 var(--mono); min-height: 100%; display: grid; align-content: start; gap: 4px; }
.ecall-log li { display: grid; grid-template-columns: 52px 1fr auto; gap: 8px; animation: runin .3s ease; }
.ecall-log li.idle { display: block; color: var(--text-3); }
.ecall-log .t { color: var(--text-3); }
.ecall-log .s { color: var(--good); font-weight: 500; }
.ecall-log li.final { grid-template-columns: 1fr; margin-top: 8px; padding-top: 10px; border-top: 1px solid var(--line); color: var(--accent); font-family: var(--sans); font-size: 14px; }

/* method -------------------------------------------------------------------------- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.flow li { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 22px 22px 24px; }
.flow li:not(:last-child)::after { content: "→"; position: absolute; right: -15px; top: 50%; transform: translateY(-50%); font: 500 14px var(--mono); color: var(--accent); z-index: 1; }
.flow .n { font: 500 12px var(--mono); color: var(--accent); }
.flow h3 { margin: 10px 0 8px; font: 700 1.35rem/1.2 var(--display); }
.flow p { font-size: 14.5px; color: var(--text-2); }
.flow p b { color: var(--text); font-weight: 600; }
.loop-note { margin-top: 22px; text-align: center; font: 500 13px var(--mono); color: var(--text-3); letter-spacing: .04em; }
.loop-note span { color: var(--accent); font-size: 16px; margin-right: 6px; }

/* trace (scroll-pinned) ---------------------------------------------------------- */
.pin-track { position: relative; }
.js .pin-on .pin-track { height: calc(100vh + 6 * 42vh); }
.js .pin-on .pin { position: sticky; top: 76px; }
.trace { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 20px 20px 16px; box-shadow: var(--shadow); }
.trace-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-bottom: 12px; font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.legend { display: flex; flex-wrap: wrap; gap: 16px; text-transform: none; letter-spacing: 0; font: 400 13px var(--sans); color: var(--text-2); }
.legend li { display: inline-flex; align-items: center; gap: 7px; }
.legend i { width: 14px; height: 7px; border-radius: 2px; }
.c-auto { background: var(--auto); } .c-med { background: var(--med); } .c-ai { background: var(--ai); }
.trace-rows { position: relative; }
.gl { position: absolute; top: 0; bottom: 0; left: var(--nmw); right: var(--duw); pointer-events: none; }
.gl i { position: absolute; top: 0; bottom: 0; left: var(--x); border-left: 1px solid var(--line); }
.gl i.now { border-left: 1px dashed var(--text-3); }
.span-row { position: relative; width: 100%; display: grid; grid-template-columns: var(--nmw) 1fr var(--duw); align-items: center; height: 42px; text-align: left; border-radius: 10px; transition: background .2s; }
.span-row + .span-row { border-top: 1px dashed var(--line); }
.span-row:hover, .span-row[aria-pressed="true"] { background: var(--surface-2); }
.span-row .nm { padding-left: 10px; font: 600 14px var(--sans); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.span-row .nm em { font-style: normal; font-weight: 400; color: var(--text-3); margin-left: 6px; }
.span-row[aria-pressed="true"] .nm { color: var(--accent); }
.span-row .du { padding-right: 10px; text-align: right; font: 500 12px var(--mono); color: var(--text-2); }
.pl { position: relative; height: 100%; }
.bar { position: absolute; top: 50%; left: var(--l); width: var(--w); min-width: 10px; height: 12px; margin-top: -6px; border-radius: 6px; transform-origin: 0 50%; transition: transform .9s cubic-bezier(.2,.8,.2,1), box-shadow .2s; }
.bar.c-auto { color: var(--auto); } .bar.c-med { color: var(--med); } .bar.c-ai { color: var(--ai); }
.span-row:hover .bar, .span-row[aria-pressed="true"] .bar { box-shadow: 0 0 0 3px var(--surface-2), 0 0 0 4px currentColor; }
.bar.running { border-radius: 6px 0 0 6px; }
.bar.running::after { content: ""; position: absolute; right: -14px; top: 0; bottom: 0; width: 14px; background: linear-gradient(90deg, var(--ai), transparent); }
.js .trace:not(.is-in) .bar { transform: scaleX(0); }
.axis { position: relative; height: 22px; margin: 6px var(--duw) 0 var(--nmw); font: 500 11px var(--mono); color: var(--text-3); }
.axis span { position: absolute; left: var(--x); transform: translateX(-50%); top: 4px; }
.replay { display: none; justify-content: center; gap: 6px; margin: 12px 0 0; }
.js .pin-on .replay { display: flex; }
.replay button { width: 36px; padding: 6px 0; cursor: pointer; }
.replay button::before { content: ""; display: block; height: 4px; border-radius: 2px; background: var(--line-2); transition: background .3s, transform .2s; }
.replay button:hover::before { background: var(--text-3); transform: scaleY(1.5); }
.replay button.on::before { background: var(--accent); }
.replay button[aria-current="step"]::before { background: var(--accent-strong); transform: scaleY(1.5); }
.runs { margin-top: 14px; }
.run { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 20px 24px; }
.run + .run { margin-top: 12px; }
.js .run { display: none; margin-top: 0; animation: runin .35s ease; }
.js .run.active { display: block; }
@keyframes runin { from { opacity: 0; transform: translateY(6px); } }
.run header { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 14px; }
.run h3 { font: 700 1.2rem/1.3 var(--display); flex: 1 1 320px; }
.run h3 span { font: 400 15px var(--sans); color: var(--text-2); }
.run time { font: 500 12px var(--mono); color: var(--text-3); }
.st { font: 600 11px var(--mono); letter-spacing: .1em; padding: 3px 8px; border-radius: 6px; color: var(--good); background: var(--good-soft); align-self: center; }
.st-run { color: var(--accent); background: var(--accent-soft); }
.run ul { margin-top: 12px; display: grid; gap: 8px; }
.run li { position: relative; padding-left: 20px; font-size: 15px; }
.run li::before { content: "›"; position: absolute; left: 4px; color: var(--accent); font-family: var(--mono); }

/* expertise ---------------------------------------------------------------------- */
.tools { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.tool { position: relative; overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 22px 20px; }
.glyph { width: 48px; height: 48px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 14px; }
.glyph path, .glyph circle, .glyph rect { stroke-dasharray: 160; stroke-dashoffset: 0; }
.tool:hover .glyph path, .tool:hover .glyph circle, .tool:hover .glyph rect { animation: redraw 1.1s ease forwards; }
@keyframes redraw { 0% { stroke-dashoffset: 160; } 100% { stroke-dashoffset: 0; } }
.tool h3 { font: 700 1.15rem var(--display); }
.tool .chips { margin-top: 14px; }

/* the engineer ------------------------------------------------------------------ */
.about { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(28px, 5vw, 72px); align-items: start; }
.about .big { font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.55; margin-bottom: 16px; }
.about p:not(.big):not(.kicker) { color: var(--text-2); }
.ratings { margin-top: 28px; width: 100%; border-collapse: collapse; font: 400 13px var(--mono); }
.ratings caption { text-align: left; font: 600 11px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); padding-bottom: 8px; }
.ratings th, .ratings td { padding: 8px 0; border-top: 1px solid var(--line); text-align: left; vertical-align: baseline; }
.ratings th { font-weight: 400; color: var(--text-2); padding-right: 16px; }
.ratings td { color: var(--text); font-weight: 500; white-space: nowrap; text-align: right; }
.ratings td span { color: var(--text-3); font-weight: 400; margin-left: 8px; }
.chip-sheet { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 20px 20px 18px; box-shadow: var(--shadow); }
.sheet-title { font: 600 11px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); display: flex; gap: 10px; align-items: baseline; }
.sheet-title span { color: var(--text-3); font-weight: 400; letter-spacing: .08em; }
#chip { display: block; width: 100%; height: auto; margin-top: 8px; }
.chip-body { fill: var(--bg-alt); stroke: var(--accent); stroke-width: 1.6; }
.chip-notch { fill: var(--surface); stroke: var(--accent); stroke-width: 1.6; }
.chip-dot { fill: var(--accent); }
.chip-t { fill: var(--accent); font: 700 34px var(--display); text-anchor: middle; letter-spacing: .08em; }
.chip-s { fill: var(--text-3); font: 500 11px var(--mono); text-anchor: middle; letter-spacing: .12em; }
.pin { cursor: pointer; outline: none; }
.pin-hit { fill: transparent; }
.pin path { stroke: var(--line-2); stroke-width: 6; stroke-linecap: square; transition: stroke .2s; }
.pin-l, .pin-r { fill: var(--text-2); font: 600 12px var(--mono); transition: fill .2s; }
.pin-l { text-anchor: end; }
.pin-n { fill: var(--text-3); font: 400 9px var(--mono); text-anchor: middle; }
.pin:hover path, .pin:focus-visible path, .pin.on path { stroke: var(--accent); }
.pin:hover text, .pin:focus-visible text, .pin.on .pin-l, .pin.on .pin-r { fill: var(--accent); }
.probe { display: flex; gap: 12px; align-items: baseline; margin-top: 10px; padding: 12px 14px; border-radius: 12px; background: var(--bg-alt); border: 1px dashed var(--line-2); font: 400 13.5px/1.5 var(--sans); color: var(--text); min-height: 64px; }
.probe-k { flex: none; font: 600 11px var(--mono); letter-spacing: .1em; color: var(--accent-ink); background: var(--accent); border-radius: 5px; padding: 2px 7px; }
.pin-list { margin-top: 12px; font-size: 14px; }
.pin-list > div { display: grid; grid-template-columns: 80px 1fr; gap: 10px; padding: 6px 0; border-top: 1px solid var(--line); }
.pin-list dt { font: 500 11px var(--mono); color: var(--text-3); padding-top: 3px; }
.js .pin-list { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.js .chip-sheet { position: relative; }

/* contact ---------------------------------------------------------------------- */
.contact h2 { font-size: clamp(2.4rem, 6vw, 4.6rem); max-width: 15em; }
.contact > .wrap > p:not(.kicker) { color: var(--text-2); font-size: 1.08rem; max-width: 36em; }
.mail { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin: 34px 0 40px; }
.mail a { font: 700 clamp(1.5rem, 4.4vw, 3rem)/1.1 var(--display); text-decoration: none;
  background: linear-gradient(var(--accent), var(--accent)) 0 100% / 0 3px no-repeat; transition: background-size .35s, color .2s; overflow-wrap: anywhere; }
.mail a:hover { background-size: 100% 3px; color: var(--accent); }
.copied { font: 500 12px var(--mono); color: var(--good); }
.links { display: grid; max-width: 640px; border-top: 1px solid var(--line); }
.links > div { display: grid; grid-template-columns: 110px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.links dt { font: 500 11px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); padding-top: 3px; }
.links a { color: var(--accent); text-decoration: none; }
.links a:hover { text-decoration: underline; text-underline-offset: 3px; }
.foot { border-top: 1px solid var(--line); padding: 26px 0 34px; font: 500 12px var(--mono); color: var(--text-3); }
.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }

/* back to top: bottom centre, a ring that fills with scroll progress ---------- */
.to-top { position: fixed; left: 50%; bottom: clamp(14px, 2.4vw, 24px); z-index: 55; display: grid; place-items: center;
  width: 52px; height: 52px; border-radius: 50%; color: var(--accent);
  background: color-mix(in srgb, var(--surface) 88%, transparent); backdrop-filter: blur(8px); box-shadow: var(--shadow);
  opacity: 0; transform: translate(-50%, 14px) scale(.9); pointer-events: none;
  transition: opacity .3s, transform .3s cubic-bezier(.2,.8,.2,1); }
.to-top.show { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }
.to-top > * { grid-area: 1 / 1; }
.to-top svg { fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; }
.tt-ring { width: 52px; height: 52px; transform: rotate(-90deg); }
.tt-track { stroke: var(--line-2); stroke-width: 2; }
.tt-prog { stroke: var(--accent); stroke-width: 2.4; stroke-dasharray: 1; stroke-dashoffset: calc(1 - var(--p, 0)); }
.tt-arrow { width: 22px; height: 22px; stroke-width: 2.2; transition: transform .25s; }
.to-top:hover .tt-arrow { transform: translateY(-3px); }

/* reveal ------------------------------------------------------------------------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.8,.2,1); }
.js .reveal.is-in { opacity: 1; transform: none; }
.js .flow li:nth-child(2) { transition-delay: .08s; }
.js .flow li:nth-child(3) { transition-delay: .16s; }
.js .flow li:nth-child(4) { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
  .js .trace:not(.is-in) .bar { transform: none; }
  .js .lat-base path { stroke-dashoffset: 0; }
}

/* responsive ------------------------------------------------------------------- */
@media (max-width: 1040px) {
  .hero-inner { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(3, 1fr); }
  .tools { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow li:nth-child(2)::after { display: none; }
}
@media (max-width: 860px) {
  .nav ul { display: none; }
  .pao { grid-template-columns: 1fr; }
  .case-grid, .about, .ecall-body { grid-template-columns: 1fr; }
  .ecall-ctl { align-items: flex-start; }
  .hero .lattice { opacity: .6; -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 12%, transparent 62%, #000 92%);
    mask-image: linear-gradient(180deg, transparent 0%, #000 12%, transparent 62%, #000 92%); }
}
@media (max-width: 600px) {
  :root { --nmw: 108px; --duw: 54px; }
  .brand span { display: none; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stats .stat:last-child { grid-column: span 2; }
  .tools, .flow { grid-template-columns: 1fr; }
  .lab-status { min-width: 0; }
  .flow li::after { display: none; }
  .span-row .nm em { display: none; }
  .pao.compact > div { grid-template-columns: 1fr; gap: 2px; }
  .links > div { grid-template-columns: 1fr; gap: 2px; }
  .term-body { font-size: 11px; }
  .seg { flex-wrap: wrap; }
  .ratings td span { display: none; }
}