/* Shared styles for deeptanshudevatha.com: homepage layer and project pages.
   Classes are prefixed s- so they never collide with the blog/post styles in index.html. */

:root {
	--paper: #fbfaf7;
	--paper-2: #f3f1ea;
	--ink: #15171c;
	--ink-2: #454a57;
	--ink-3: #6e7382;
	--rule: #e2dfd7;
	--rule-2: #cfcbc0;
	--accent: #1f4f8a;
	--accent-2: #163b69;
	--accent-soft: #e7edf6;
	--serif: "Source Serif 4", Georgia, "Times New Roman", serif;
	--sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
	--mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
	--wrap: 1080px;
	--prose: 680px;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body.s-page {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font-family: var(--serif);
	font-size: 18px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

.s-skip {
	position: absolute; left: -9999px; top: 8px;
	background: var(--ink); color: #fff; padding: 8px 12px; z-index: 100;
	font-family: var(--sans); font-size: 14px;
}
.s-skip:focus { left: 8px; }

a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-2); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.s-wrap { width: min(100% - 32px, var(--wrap)); margin-inline: auto; }
.s-prose { max-width: var(--prose); }

/* ---------- navigation ---------- */
.s-nav {
	position: sticky; top: 0; z-index: 30;
	background: rgba(251, 250, 247, 0.94);
	backdrop-filter: saturate(1.2) blur(8px);
	border-bottom: 1px solid var(--rule);
}
.s-nav .s-wrap {
	display: flex; align-items: center; justify-content: space-between;
	gap: 16px; min-height: 58px; flex-wrap: wrap;
}
.s-brand {
	font-family: var(--sans); font-weight: 600; font-size: 16px;
	color: var(--ink); text-decoration: none; letter-spacing: 0.01em;
}
.s-brand:hover { color: var(--ink); }
.s-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px 20px; flex-wrap: wrap; }
.s-nav a.s-navlink {
	font-family: var(--sans); font-size: 14.5px; color: var(--ink-2); text-decoration: none;
	padding: 6px 0; border-bottom: 1.5px solid transparent;
}
.s-nav a.s-navlink:hover, .s-nav a.s-navlink[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }

/* ---------- type ---------- */
.s-kicker {
	display: block;
	font-family: var(--mono); font-size: 12.5px; font-weight: 500;
	letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3);
	margin: 0 0 10px;
}
.s-h1 {
	font-family: var(--sans); font-weight: 600; letter-spacing: -0.015em;
	font-size: clamp(30px, 5vw, 46px); line-height: 1.12; margin: 0 0 16px;
	text-wrap: balance;
}
.s-h2 {
	font-family: var(--sans); font-weight: 600; letter-spacing: -0.01em;
	font-size: clamp(22px, 3vw, 28px); line-height: 1.25; margin: 0 0 14px;
}
.s-h3 {
	font-family: var(--sans); font-weight: 600; font-size: 19px; line-height: 1.3; margin: 0 0 8px;
}
.s-lede { font-size: clamp(19px, 2.2vw, 22px); line-height: 1.5; color: var(--ink-2); margin: 0 0 20px; max-width: 760px; }
.s-meta { font-family: var(--sans); font-size: 15px; color: var(--ink-2); margin: 0 0 6px; }
.s-meta b { color: var(--ink); font-weight: 600; }
.s-muted { color: var(--ink-3); }
.s-prose p, .s-prose li { color: var(--ink); }
.s-prose p { margin: 0 0 16px; }
.s-prose ul, .s-prose ol { padding-left: 22px; margin: 0 0 16px; }
.s-prose li { margin-bottom: 6px; }
code, .s-code {
	font-family: var(--mono); font-size: 0.86em; background: var(--paper-2);
	padding: 1px 5px; border-radius: 3px;
}

/* ---------- link rows (Paper · Code · Log) ---------- */
.s-links { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 0; padding: 0; list-style: none; }
.s-links a {
	display: inline-flex; align-items: center; gap: 6px;
	font-family: var(--sans); font-size: 14px; font-weight: 500;
	color: var(--accent); text-decoration: none;
	border: 1px solid var(--rule-2); border-radius: 999px; padding: 5px 13px;
	background: #fff;
}
.s-links a:hover { border-color: var(--accent); background: var(--accent-soft); }
.s-links a.s-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.s-links a.s-primary:hover { background: var(--accent-2); }

/* ---------- hero ---------- */
.s-hero { padding: 64px 0 40px; border-bottom: 1px solid var(--rule); }
.s-hero .s-h1 { font-size: clamp(36px, 6vw, 58px); }
.s-facts {
	display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 0; margin: 32px 0 0; padding: 0; border-top: 1px solid var(--rule);
}
.s-facts > div { padding: 16px 16px 4px 0; }
.s-facts > div + div { padding-left: 16px; border-left: 1px solid var(--rule); }
.s-facts dt { font-family: var(--mono); font-size: 24px; font-weight: 500; color: var(--ink); line-height: 1.2; }
.s-facts dd { margin: 4px 0 0; font-family: var(--sans); font-size: 14px; line-height: 1.4; color: var(--ink-2); }

/* ---------- sections ---------- */
.s-section { padding: 56px 0; border-bottom: 1px solid var(--rule); }
.s-section:last-of-type { border-bottom: 0; }
.s-section-head { display: grid; grid-template-columns: 220px 1fr; gap: 24px; margin-bottom: 24px; }
.s-section-head .s-h2 { margin: 0; }
.s-section-head p { margin: 0; color: var(--ink-2); font-size: 17px; }

/* work entries on the homepage */
.s-work { display: grid; gap: 0; }
.s-entry {
	display: grid; grid-template-columns: 220px 1fr; gap: 24px;
	padding: 28px 0; border-top: 1px solid var(--rule);
}
.s-entry:first-child { border-top: 0; padding-top: 4px; }
.s-entry-side { font-family: var(--sans); font-size: 14px; color: var(--ink-3); line-height: 1.5; }
.s-entry-side strong { display: block; color: var(--ink); font-weight: 600; font-size: 15px; }
.s-entry .s-h3 { font-size: 22px; }
.s-entry .s-h3 a { color: var(--ink); text-decoration: none; }
.s-entry .s-h3 a:hover { color: var(--accent); text-decoration: underline; }
.s-entry p { margin: 0 0 10px; color: var(--ink-2); }
.s-entry .s-nums {
	font-family: var(--mono); font-size: 14px; color: var(--ink); margin: 12px 0 0;
	display: flex; flex-wrap: wrap; gap: 6px 18px;
}
.s-entry .s-nums span { white-space: nowrap; }
.s-note {
	font-family: var(--sans); font-size: 14px; color: var(--ink-2);
	border-left: 2px solid var(--rule-2); padding: 2px 0 2px 12px; margin: 14px 0 0;
}

/* ---------- project pages ---------- */
.s-page-head { padding: 56px 0 32px; border-bottom: 1px solid var(--rule); }
.s-status {
	display: inline-block; font-family: var(--sans); font-size: 13.5px; font-weight: 500;
	background: var(--accent-soft); color: var(--accent-2); border-radius: 4px; padding: 3px 9px; margin: 4px 0 0;
}
.s-layout { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 48px; padding: 40px 0 72px; }
.s-toc { position: sticky; top: 82px; align-self: start; font-family: var(--sans); font-size: 14px; }
.s-toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--rule); }
.s-toc a { display: block; padding: 4px 0 4px 14px; color: var(--ink-3); text-decoration: none; }
.s-toc a:hover { color: var(--ink); }
.s-block { margin: 0 0 44px; scroll-margin-top: 80px; }
.s-block > .s-h2 { padding-top: 4px; }

.s-table-wrap { overflow-x: auto; margin: 8px 0 18px; }
.s-table { border-collapse: collapse; width: 100%; font-family: var(--sans); font-size: 15px; }
.s-table caption { text-align: left; font-size: 14px; color: var(--ink-3); padding-bottom: 8px; }
.s-table th, .s-table td { text-align: left; padding: 8px 12px 8px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.s-table th { font-weight: 600; color: var(--ink); border-bottom-color: var(--rule-2); }
.s-table td.n, .s-table th.n { text-align: right; font-family: var(--mono); font-size: 14px; white-space: nowrap; }
.s-table tr.s-hl td { background: var(--accent-soft); }

.s-figure { margin: 8px 0 22px; }
.s-figure img, .s-figure svg { display: block; max-width: 100%; height: auto; border: 1px solid var(--rule); border-radius: 4px; background: #fff; }
.s-figure figcaption { font-family: var(--sans); font-size: 14px; color: var(--ink-3); margin-top: 8px; line-height: 1.45; }

.s-pipeline { list-style: none; margin: 8px 0 20px; padding: 0; counter-reset: step; }
.s-pipeline li {
	position: relative; padding: 10px 0 10px 44px; border-bottom: 1px solid var(--rule);
	font-family: var(--sans); font-size: 15.5px; color: var(--ink-2);
}
.s-pipeline li::before {
	counter-increment: step; content: counter(step, decimal-leading-zero);
	position: absolute; left: 0; top: 10px; font-family: var(--mono); font-size: 13px; color: var(--accent);
}
.s-pipeline li b { color: var(--ink); font-weight: 600; }

.s-callout {
	background: #fff; border: 1px solid var(--rule); border-left: 3px solid var(--accent);
	padding: 16px 18px; margin: 8px 0 20px; font-size: 17px;
}
.s-callout p:last-child { margin-bottom: 0; }

.s-log { list-style: none; margin: 0; padding: 0; font-family: var(--sans); font-size: 15px; }
.s-log li { display: grid; grid-template-columns: 124px 1fr; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--rule); }
.s-log time { font-family: var(--mono); font-size: 13px; color: var(--ink-3); padding-top: 2px; }
.s-log .s-phase { grid-column: 1 / -1; font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); padding-top: 14px; border-bottom: 0; }

.s-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 8px 0 20px; }
.s-tile { background: #fff; border: 1px solid var(--rule); border-radius: 4px; padding: 16px; }
.s-tile .s-h3 { font-size: 16.5px; }
.s-tile p { font-family: var(--sans); font-size: 14.5px; color: var(--ink-2); margin: 0; line-height: 1.5; }

/* bar chart built from HTML so it stays crisp and accessible */
.s-bars { margin: 8px 0 22px; font-family: var(--sans); font-size: 14px; }
.s-bar { display: grid; grid-template-columns: 210px 1fr 96px; align-items: center; gap: 12px; padding: 5px 0; }
.s-bar-track { position: relative; height: 16px; background: var(--paper-2); border-radius: 2px; }
.s-bar-fill { position: absolute; inset: 0 auto 0 0; background: #8aa3c4; border-radius: 0 4px 4px 0; }
.s-bar.s-best .s-bar-fill { background: var(--accent); }
.s-bar-val { font-family: var(--mono); font-size: 13.5px; text-align: right; color: var(--ink); }

/* =====================================================================
   Portfolio layer (p-*): editorial, image-led components used by the
   homepage and the KidCode page. Warmer paper, larger serif display type,
   photographs first. Nothing above depends on these classes.
   ===================================================================== */
:root {
	--paper: #f8f4ed;
	--paper-2: #f0eadf;
	--paper-3: #e8dfd0;
	--ink: #1c1a17;
	--ink-2: #4a453d;
	--ink-3: #7a7266;
	--rule: #e3dbcc;
	--rule-2: #d3c8b4;
	--accent: #9c3f24;          /* clay: used sparingly for links and marks */
	--accent-2: #7a2f19;
	--accent-soft: #f3e3da;
	--blue: #1f4f8a;
	--display: "Source Serif 4", Georgia, "Times New Roman", serif;
}
body.s-page { background: var(--paper); }
a { color: var(--accent); }
a:hover { color: var(--accent-2); }
.s-nav { background: rgba(248, 244, 237, 0.92); }
.s-links a { color: var(--accent); background: transparent; }
.s-links a:hover { background: var(--accent-soft); border-color: var(--accent); }
.s-links a.s-primary { background: var(--ink); border-color: var(--ink); color: #fff; }
.s-links a.s-primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
code, .s-code { background: var(--paper-2); }
.s-callout { border-left-color: var(--accent); background: #fffdf9; }
.s-toc a:hover { color: var(--accent); }

.p-wrap { width: min(100% - 40px, 1180px); margin-inline: auto; }
.p-kicker { font-family: var(--sans); font-size: 13px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; display: block; }
.p-h1 { font-family: var(--display); font-weight: 500; font-size: clamp(40px, 6.4vw, 82px); line-height: 1.02; letter-spacing: -0.022em; margin: 0 0 22px; text-wrap: balance; }
.p-h2 { font-family: var(--display); font-weight: 500; font-size: clamp(30px, 4.2vw, 52px); line-height: 1.08; letter-spacing: -0.018em; margin: 0 0 16px; text-wrap: balance; }
.p-h3 { font-family: var(--display); font-weight: 600; font-size: 24px; line-height: 1.2; margin: 0 0 8px; }
.p-lede { font-size: clamp(19px, 2vw, 23px); line-height: 1.55; color: var(--ink-2); max-width: 34em; margin: 0 0 24px; }
.p-body { font-size: 18.5px; line-height: 1.7; max-width: 38em; }
.p-body p { margin: 0 0 1.1em; }
.p-muted { color: var(--ink-3); }
.p-section { padding: clamp(56px, 8vw, 112px) 0; }
.p-section.p-tint { background: var(--paper-2); }
.p-section-head { max-width: 46em; margin: 0 0 clamp(28px, 4vw, 52px); }
.p-section-head p { font-size: 19px; color: var(--ink-2); margin: 0; }

/* hero with a photo collage: real photographs fill the first screen */
.p-hero { padding: clamp(28px, 4vw, 56px) 0 clamp(44px, 6vw, 80px); }
.p-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); gap: clamp(28px, 4vw, 64px); align-items: center; }
.p-hero-text .p-lede { margin-bottom: 26px; }
.p-collage { display: grid; grid-template-columns: repeat(6, 1fr); grid-template-rows: repeat(6, clamp(46px, 6.2vw, 78px)); gap: 10px; }
.p-collage figure { margin: 0; overflow: hidden; border-radius: 6px; background: var(--paper-3); position: relative; }
.p-collage img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s ease; }
.p-collage figure:hover img { transform: scale(1.03); }
.p-collage .c3 img { object-fit: contain; background: #fff; padding: 4px; }
.p-collage .c4 img { object-fit: cover; object-position: top left; }
.p-collage .p-slide img { object-fit: contain; background: #fff; }
.p-collage .c1 { grid-column: 1 / 5; grid-row: 1 / 5; }
.p-collage .c2 { grid-column: 5 / 7; grid-row: 1 / 3; }
.p-collage .c3 { grid-column: 5 / 7; grid-row: 3 / 5; }
.p-collage .c4 { grid-column: 1 / 3; grid-row: 5 / 7; }
.p-collage .c5 { grid-column: 3 / 7; grid-row: 5 / 7; }
.p-collage figcaption, .p-strip figcaption, .p-photo figcaption { font-family: var(--sans); font-size: 12.5px; line-height: 1.35; color: var(--ink-3); }
.p-collage figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 10px 8px; color: #fff; background: linear-gradient(transparent, rgba(20,16,12,.62)); opacity: 0; transition: opacity .3s; }
.p-collage figure:hover figcaption, .p-collage figure:focus-within figcaption { opacity: 1; }
.p-intro-links { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }

/* selected work: large image cards */
.p-work { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(18px, 2.4vw, 30px); }
.p-card { grid-column: span 6; display: flex; flex-direction: column; text-decoration: none; color: inherit; background: #fffdf9; border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
.p-card:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(60, 40, 20, .12); color: inherit; }
.p-card.p-wide { grid-column: span 12; flex-direction: row; }
.p-card.p-third { grid-column: span 4; }
.p-card-img { aspect-ratio: 16 / 10; overflow: hidden; background: var(--paper-3); }
.p-card.p-wide .p-card-img { aspect-ratio: auto; flex: 1.25; min-height: 320px; }
.p-card-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.p-card-img.p-contain img { object-fit: contain; background: #fff; padding: 10px; }
.p-card-body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.p-card.p-wide .p-card-body { flex: 1; justify-content: center; padding: clamp(24px, 3vw, 44px); }
.p-card-body .p-tag { font-family: var(--sans); font-size: 12.5px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.p-card-body h3 { font-family: var(--display); font-weight: 600; font-size: clamp(22px, 2.4vw, 30px); line-height: 1.15; margin: 0; }
.p-card-body p { margin: 0; color: var(--ink-2); font-size: 17px; line-height: 1.55; }
.p-card-body .p-more { margin-top: auto; padding-top: 8px; font-family: var(--sans); font-size: 14.5px; font-weight: 500; color: var(--accent); }

/* a horizontally scrolling photo strip */
.p-strip { display: flex; gap: 14px; overflow-x: auto; padding: 4px 20px 22px; margin: 0 -20px; scroll-snap-type: x proximity; -webkit-overflow-scrolling: touch; }
.p-strip figure { margin: 0; flex: 0 0 auto; scroll-snap-align: start; }
.p-strip img { display: block; height: clamp(220px, 32vw, 380px); width: auto; max-width: none; border-radius: 6px; background: var(--paper-3); }
.p-strip figcaption { margin-top: 8px; max-width: 34em; }

.p-photo { margin: 0; }
.p-photo img { display: block; width: 100%; height: auto; border-radius: 6px; }
.p-photo figcaption { margin-top: 8px; }
.p-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 60px); align-items: start; }
.p-split.p-split-tight { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); }
.p-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.p-gallery figure { margin: 0; }
.p-gallery img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 6px; background: var(--paper-3); }
.p-gallery figcaption { font-family: var(--sans); font-size: 12.5px; color: var(--ink-3); margin-top: 6px; line-height: 1.35; }
.p-gallery .p-wide2 { grid-column: span 2; }
.p-gallery .p-wide2 img { aspect-ratio: 8 / 3; }

/* the KidCode story, year by year */
.p-year { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: clamp(20px, 3vw, 48px); padding: clamp(36px, 5vw, 64px) 0; border-top: 1px solid var(--rule-2); }
.p-year:first-of-type { border-top: 0; }
.p-year-n { font-family: var(--display); font-size: clamp(54px, 7vw, 92px); font-weight: 400; line-height: .9; color: var(--accent); letter-spacing: -.03em; }
.p-year-n small { display: block; font-family: var(--sans); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); margin-top: 10px; font-weight: 500; }
.p-year h3 { font-family: var(--display); font-weight: 500; font-size: clamp(26px, 3vw, 36px); line-height: 1.12; margin: 0 0 12px; letter-spacing: -.01em; }
.p-year p { font-size: 18.5px; line-height: 1.7; max-width: 40em; margin: 0 0 1em; }
.p-year ul.p-bullets { margin: 0 0 1em; padding-left: 1.2em; max-width: 40em; }
.p-year ul.p-bullets li { margin-bottom: .35em; }
.p-facts { display: flex; flex-wrap: wrap; gap: 8px 26px; margin: 18px 0 0; padding: 0; list-style: none; font-family: var(--sans); font-size: 15px; color: var(--ink-2); }
.p-facts b { font-family: var(--display); font-size: 22px; font-weight: 600; color: var(--ink); margin-right: 5px; }

/* project cards */
.p-projects { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.p-proj { background: #fffdf9; border: 1px solid var(--rule); border-radius: 8px; padding: 18px 18px 16px; display: flex; flex-direction: column; gap: 6px; }
.p-proj .p-pn { font-family: var(--sans); font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); font-weight: 500; }
.p-proj h4 { font-family: var(--display); font-size: 20px; line-height: 1.2; margin: 0; font-weight: 600; }
.p-proj p { font-family: var(--sans); font-size: 14.5px; color: var(--ink-2); line-height: 1.5; margin: 0; }
.p-proj .p-pl { margin-top: auto; padding-top: 8px; font-family: var(--sans); font-size: 13.5px; display: flex; flex-wrap: wrap; gap: 4px 14px; }
.p-proj .p-pl a { text-decoration: none; }
.p-proj .p-pl a:hover { text-decoration: underline; }
.p-yearlabel { font-family: var(--sans); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); margin: 34px 0 12px; font-weight: 500; }

/* editorial code panels */
.p-split > *, .p-year > div, .p-gallery > * { min-width: 0; }
.p-code { max-width: 100%; background: #fffdf9; border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; margin: 0; }
.p-code figcaption { font-family: var(--sans); font-size: 13px; color: var(--ink-3); padding: 9px 14px; border-bottom: 1px solid var(--rule); background: var(--paper-2); }
.p-code pre { margin: 0; padding: 14px 16px; overflow-x: auto; font-family: var(--mono); font-size: 13px; line-height: 1.55; color: var(--ink); white-space: pre; }
.p-code pre.p-out { border-top: 1px dashed var(--rule-2); background: #faf6ee; color: var(--ink-2); white-space: pre-wrap; overflow-wrap: anywhere; }

/* assessment, kept simple */
.p-numbers { display: flex; flex-wrap: wrap; gap: 24px 48px; margin: 22px 0 8px; }
.p-numbers div { min-width: 120px; }
.p-numbers b { display: block; font-family: var(--display); font-size: clamp(34px, 4.4vw, 54px); font-weight: 500; line-height: 1; letter-spacing: -.02em; }
.p-numbers span { font-family: var(--sans); font-size: 14px; color: var(--ink-2); }
.p-bars { margin: 24px 0 0; max-width: 620px; font-family: var(--sans); font-size: 14px; }
.p-bar { display: grid; grid-template-columns: 96px 1fr 60px; gap: 12px; align-items: center; padding: 5px 0; }
.p-bar i { display: block; height: 14px; background: var(--paper-3); border-radius: 7px; position: relative; overflow: hidden; }
.p-bar i::after { content: ""; position: absolute; inset: 0 auto 0 0; width: var(--w); background: var(--accent); border-radius: 7px; }
.p-bar.p-pre i::after { background: #b9a98f; }
.p-bar b { font-weight: 500; text-align: right; font-variant-numeric: tabular-nums; }

.p-notes { font-family: var(--sans); font-size: 15px; color: var(--ink-2); line-height: 1.6; max-width: 46em; }
.p-notes h3 { font-family: var(--display); font-size: 22px; color: var(--ink); margin: 0 0 10px; font-weight: 600; }
.p-notes ul { padding-left: 1.2em; margin: 0 0 12px; }
.p-notes li { margin-bottom: 6px; }

.p-reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s ease, transform .7s ease; }
.p-reveal.p-in { opacity: 1; transform: none; }
.p-noscript .p-reveal, html:not(.js) .p-reveal { opacity: 1; transform: none; }

@media (max-width: 900px) {
	.p-hero-grid, .p-split, .p-split.p-split-tight { grid-template-columns: 1fr; }
	.p-hero-grid .p-collage { order: -1; }
	.p-card, .p-card.p-third { grid-column: span 12; }
	.p-card.p-wide { flex-direction: column; }
	.p-card.p-wide .p-card-img { min-height: 0; aspect-ratio: 16 / 10; }
	.p-year { grid-template-columns: 1fr; gap: 6px; }
	.p-projects { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.p-gallery { grid-template-columns: repeat(2, 1fr); }
	.p-gallery .p-wide2 { grid-column: span 2; }
}
@media (max-width: 560px) {
	.p-projects { grid-template-columns: 1fr; }
	.p-collage { grid-template-rows: repeat(6, 44px); gap: 6px; }
	.p-gallery { grid-template-columns: 1fr; }
	.p-gallery .p-wide2 { grid-column: span 1; }
	.p-gallery .p-wide2 img { aspect-ratio: 4 / 3; }
	.p-bar { grid-template-columns: 78px 1fr 52px; }
}
@media (prefers-reduced-motion: reduce) { .p-reveal { opacity: 1; transform: none; transition: none; } .p-card, .p-collage img { transition: none; } }

/* ---------- footer ---------- */
.s-footer { border-top: 1px solid var(--rule); padding: 28px 0 40px; font-family: var(--sans); font-size: 14.5px; color: var(--ink-3); }
.s-footer .s-wrap { display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; }
.s-footer a { color: var(--ink-2); }
.s-footer ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 18px; flex-wrap: wrap; }

.s-back { font-family: var(--sans); font-size: 14px; margin: 0 0 18px; }
.s-back a { text-decoration: none; }

@media (max-width: 860px) {
	.s-section-head, .s-entry { grid-template-columns: 1fr; gap: 8px; }
	.s-layout { grid-template-columns: 1fr; gap: 16px; padding-top: 24px; }
	.s-toc { position: static; }
	.s-toc ol { display: flex; flex-wrap: wrap; gap: 4px 0; border-left: 0; }
	.s-toc a { padding: 2px 12px 2px 0; }
	.s-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.s-facts > div:nth-child(3) { padding-left: 0; border-left: 0; }
	.s-facts > div:nth-child(n+3) { border-top: 1px solid var(--rule); }
	.s-grid-2 { grid-template-columns: 1fr; }
	.s-bar { grid-template-columns: 1fr 76px; }
	.s-bar-label { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
	body.s-page { font-size: 17px; }
	.s-hero { padding-top: 40px; }
	.s-facts { grid-template-columns: 1fr; }
	.s-facts > div, .s-facts > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--rule); }
	.s-log li { grid-template-columns: 1fr; gap: 0; }
}

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

@media print {
	.s-nav, .s-footer, .s-toc, .s-skip { display: none; }
	body.s-page { background: #fff; font-size: 12pt; }
	.s-layout { display: block; }
}

/* ---- research chronicle (X-Step paper) ---- */
.s-chron { list-style: none; margin: 8px 0 0; padding: 0 0 0 26px; border-left: 2px solid var(--rule-2); }
.s-chron > li { position: relative; padding: 0 0 38px 4px; }
.s-chron > li::before { content: ""; position: absolute; left: -33px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--paper); border: 2px solid var(--accent); }
.s-chron > li.is-end::before { background: var(--accent); width: 14px; height: 14px; left: -34px; top: 6px; }
.s-chron .s-when { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin: 0 0 4px; }
.s-chron h3 { font-family: var(--serif); font-size: 21px; line-height: 1.3; margin: 0 0 10px; font-weight: 600; }
.s-chron .s-q { border-left: 3px solid var(--accent-soft); padding: 2px 0 2px 14px; margin: 14px 0; color: var(--ink-2); }
.s-chron .s-q b { font-family: var(--sans); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 2px; }
.s-chron .s-evid { font-family: var(--sans); font-size: 13px; color: var(--ink-3); margin-top: 10px; }
.s-fig { margin: 18px 0; }
.s-fig img { width: 100%; height: auto; display: block; border: 1px solid var(--rule); background: #fff; border-radius: 4px; }
.s-fig figcaption { font-family: var(--sans); font-size: 13.5px; color: var(--ink-3); margin-top: 8px; line-height: 1.5; }
.s-fig.is-narrow { max-width: 520px; }
.s-accepted { display: block; background: #eef6ee; border: 1px solid #b9d6b9; border-left: 4px solid #3c8a49; border-radius: 4px; padding: 12px 16px; margin: 14px 0 0; font-family: var(--sans); font-size: 15px; color: #1d3b22; }
.s-accepted b { display: block; font-size: 17px; }
.s-split { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 18px 0; }
.s-split > div { border: 1px solid var(--rule-2); border-radius: 4px; padding: 14px 16px; background: #fff; font-size: 15.5px; }
.s-split h4 { margin: 0 0 6px; font-family: var(--sans); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.s-split ul { margin: 0; padding-left: 18px; }
.s-flow { display: grid; grid-template-columns: 1fr auto 0.8fr auto 1.25fr; align-items: stretch; gap: 10px; margin: 18px 0; font-family: var(--sans); }
.s-flow-box { border: 1.5px solid var(--rule-2); border-radius: 6px; padding: 12px 14px; font-size: 14.5px; line-height: 1.5; background: var(--paper-2); display: flex; flex-direction: column; justify-content: center; }
.s-flow-box small { font-size: 11px; letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 6px; }
.s-flow-box em { font-style: normal; font-size: 12.5px; color: var(--ink-3); margin-top: 4px; }
.s-flow-box.is-data { background: #fff; border-color: var(--accent); }
.s-flow-box.is-mine { background: var(--accent-soft); border-color: var(--accent); }
.s-flow-box.is-mine small { color: var(--accent); }
.s-flow-arrow { align-self: center; color: var(--accent); font-size: 22px; }
@media (max-width: 720px) { .s-flow { grid-template-columns: 1fr; } .s-flow-arrow { transform: rotate(90deg); justify-self: center; } }
@media (max-width: 720px) { .s-split { grid-template-columns: 1fr; } .s-chron { padding-left: 20px; } }