/* Bäckmann static landing page — v0.1.0 */
:root {
  --paper: #f4f0e8;
  --paper-deep: #e9e2d5;
  --ink: #20211e;
  --muted: #6d6b64;
  --lake: #315b6b;
  --lake-dark: #173845;
  --lake-pale: #c9d9dc;
  --clay: #a6553b;
  --clay-pale: #dcad91;
  --line: rgba(32, 33, 30, .16);
  --serif: Georgia, "Times New Roman", "Noto Serif CJK SC", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans CJK SC", Arial, sans-serif;
  --ease: cubic-bezier(.23, 1, .32, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  opacity: .26;
  content: "";
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.075'/%3E%3C/svg%3E");
}
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--clay); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 10; top: -50px; left: 16px; padding: 8px 12px; background: var(--ink); color: var(--paper); transition: top 160ms var(--ease); }
.skip-link:focus { top: 16px; }

.draft-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 29px;
  padding: 5px 18px;
  background: var(--clay);
  color: #fff9f2;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: .13em;
  text-align: center;
}
.site-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 36px;
  max-width: 1440px;
  margin: auto;
  padding: 25px 42px;
  border-bottom: 1px solid var(--line);
}
.wordmark { display: inline-block; font-size: 14px; font-weight: 800; letter-spacing: .13em; }
.wordmark-dot { color: var(--clay); }
.primary-nav { display: flex; align-items: center; justify-content: center; gap: clamp(16px, 2vw, 32px); font-size: 12px; font-weight: 620; }
.primary-nav a { position: relative; padding: 4px 0; }
.primary-nav a::after { position: absolute; right: 0; bottom: 0; left: 0; height: 1px; content: ""; background: var(--lake); transform: scaleX(0); transform-origin: right; transition: transform 220ms var(--ease); }
.primary-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.language-nav { display: flex; gap: 4px; font-size: 11px; font-weight: 720; }
.language-nav a { padding: 6px 7px; border-radius: 999px; color: var(--muted); }
.language-nav a.is-active { background: var(--ink); color: var(--paper); }

.hero { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(400px, .88fr); min-height: min(780px, calc(100vh - 82px)); max-width: 1440px; margin: auto; }
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: 80px clamp(42px, 8vw, 136px) 76px clamp(42px, 6vw, 98px); }
.eyebrow, .section-kicker { margin: 0 0 22px; color: var(--clay); font-size: 11px; font-weight: 760; letter-spacing: .13em; line-height: 1.3; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--serif); font-weight: 400; letter-spacing: -.052em; }
h1 { max-width: 720px; margin-bottom: 34px; font-size: clamp(62px, 7.4vw, 118px); line-height: .91; }
.hero-intro { max-width: 500px; margin-bottom: 30px; color: #3b3b35; font-family: var(--serif); font-size: clamp(20px, 2vw, 28px); line-height: 1.28; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 7px 18px; margin-bottom: 45px; }
.hero-actions a, .text-link { display: inline-flex; gap: 7px; align-items: center; font-size: 12px; font-weight: 740; transition: color 160ms var(--ease), transform 160ms var(--ease); }
.hero-actions a:hover, .text-link:hover { color: var(--clay); transform: translateX(2px); }
.hero-note { max-width: 300px; margin: 0; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; line-height: 1.45; }

.portrait-stage { position: relative; isolation: isolate; min-height: 560px; overflow: hidden; background: linear-gradient(145deg, #d6e4e3 0%, #b3cfd2 54%, #8eb0b9 100%); }
.portrait-stage::before { position: absolute; z-index: -1; width: 70%; height: 60%; top: 14%; right: -15%; content: ""; border: 1px solid rgba(23, 56, 69, .35); border-radius: 50%; }
.portrait-stage::after { position: absolute; z-index: -1; right: 6%; bottom: 12%; width: 33%; aspect-ratio: 1; content: ""; border: 1px solid rgba(166, 85, 59, .45); border-radius: 50%; }
.portrait-index { position: absolute; top: 31px; right: 34px; color: var(--lake); font-family: var(--serif); font-size: 28px; font-style: italic; }
.portrait-sun { position: absolute; top: 16%; left: 19%; width: clamp(110px, 15vw, 210px); aspect-ratio: 1; border-radius: 50%; background: #ebc5a4; }
.portrait-shoulder { position: absolute; right: -9%; bottom: -25%; width: 108%; height: 69%; border-radius: 52% 48% 0 0 / 34% 38% 0 0; background: var(--lake-dark); }
.portrait-neck { position: absolute; z-index: 2; right: 38%; bottom: 35%; width: 13%; height: 19%; background: #dba68e; transform: rotate(3deg); }
.portrait-head { position: absolute; z-index: 3; right: 28%; bottom: 42%; width: 33%; aspect-ratio: .83; border-radius: 45% 50% 47% 47% / 42% 43% 56% 57%; background: #e1ad91; transform: rotate(4deg); }
.portrait-hair { position: absolute; z-index: 4; right: 25%; bottom: 60%; width: 38%; height: 27%; border-radius: 70% 26% 55% 34%; background: #292f2d; transform: rotate(7deg); }
.portrait-hair::after { position: absolute; right: 5%; bottom: -23%; width: 44%; height: 60%; content: ""; border-radius: 40% 50% 50% 20%; background: #292f2d; }
.portrait-orbit { position: absolute; z-index: 5; border: 1px solid rgba(244, 240, 232, .55); border-radius: 50%; }
.portrait-orbit--one { right: 14%; bottom: 17%; width: 46%; aspect-ratio: 1; }
.portrait-orbit--two { right: 4%; bottom: 28%; width: 68%; height: 35%; transform: rotate(-27deg); }
.portrait-caption { position: absolute; z-index: 7; right: 0; bottom: 0; left: 0; display: flex; justify-content: space-between; gap: 12px; padding: 18px 26px; background: rgba(23, 56, 69, .87); color: #e9f0ed; font-size: 10px; font-weight: 680; letter-spacing: .11em; }

.section-frame { max-width: 1440px; margin: auto; padding: clamp(76px, 9vw, 150px) clamp(26px, 6vw, 98px); border-top: 1px solid var(--line); }
.profile-section { display: grid; grid-template-columns: minmax(140px, .38fr) 1fr; gap: 48px; }
.profile-content { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(220px, .6fr); gap: clamp(35px, 7vw, 110px); }
h2 { margin-bottom: 0; font-size: clamp(43px, 5.5vw, 84px); line-height: .96; }
.profile-text { padding-top: 6px; }
.profile-text > p:first-child { max-width: 470px; font-family: var(--serif); font-size: clamp(18px, 1.7vw, 25px); line-height: 1.38; }
.profile-link { display: inline-flex; gap: 8px; align-items: center; margin-top: 29px; padding-bottom: 5px; border-bottom: 1px solid var(--clay); color: var(--lake); font-family: var(--serif); font-size: clamp(18px, 1.6vw, 24px); letter-spacing: -.025em; transition: color 180ms var(--ease), transform 180ms var(--ease); }
.profile-link:hover { color: var(--clay); transform: translateX(2px); }
.location-note { margin: 54px 0 0; color: var(--lake); font-size: 12px; font-weight: 740; letter-spacing: .04em; }

.section-heading-row { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(260px, .55fr); align-items: end; gap: 40px; margin-bottom: 64px; }
.section-heading-row > p { max-width: 370px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.books-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 3vw, 48px); }
.book-card { display: flex; flex-direction: column; }
.book-cover { position: relative; display: flex; flex-direction: column; justify-content: flex-end; aspect-ratio: .76; overflow: hidden; padding: 25px; color: #fff9f1; box-shadow: 12px 14px 0 rgba(32,33,30,.08); transition: transform 260ms var(--ease), box-shadow 260ms var(--ease); }
.book-card:hover .book-cover { box-shadow: 18px 21px 0 rgba(32,33,30,.10); transform: translateY(-5px) rotate(-.8deg); }
.book-cover::before { position: absolute; top: 12%; left: -19%; width: 124%; height: 31%; content: ""; border: 1px solid rgba(255,255,255,.45); border-radius: 50%; transform: rotate(-24deg); }
.book-cover::after { position: absolute; top: 16%; right: 13%; width: 29%; aspect-ratio: 1; content: ""; border-radius: 50%; background: rgba(255,255,255,.27); }
.book-cover--blue { background: #315b6b; }
.book-cover--clay { background: #a6553b; }
.book-cover--sand { background: #907a5d; }
.book-number { position: absolute; top: 20px; left: 23px; font-size: 11px; font-weight: 730; letter-spacing: .1em; }
.book-cover strong { position: relative; z-index: 1; font-family: var(--serif); font-size: clamp(28px, 3vw, 42px); font-weight: 400; line-height: .89; letter-spacing: -.05em; }
.book-cover-mark { position: absolute; z-index: 2; right: 20px; bottom: 19px; font-family: var(--serif); font-size: 35px; font-style: italic; }
.book-copy { padding: 24px 3px 0; }
.book-meta { margin-bottom: 10px; color: var(--clay); font-size: 10px; font-weight: 750; letter-spacing: .1em; }
.book-copy > p:nth-child(2) { min-height: 64px; margin-bottom: 18px; color: var(--muted); font-size: 13px; line-height: 1.5; }

.work-section { display: grid; grid-template-columns: minmax(240px, .72fr) minmax(0, 1.1fr); gap: clamp(60px, 9vw, 160px); background: var(--lake-dark); color: #edf0e9; }
.work-section .section-kicker { color: var(--clay-pale); }
.work-intro h2 { max-width: 540px; margin-bottom: 29px; }
.work-intro > p { max-width: 440px; margin: 0; color: #b8cbc8; font-size: 14px; line-height: 1.55; }
.partner-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid rgba(237,240,233,.28); border-left: 1px solid rgba(237,240,233,.28); }
.partner-card { min-height: 200px; padding: 23px; border-right: 1px solid rgba(237,240,233,.28); border-bottom: 1px solid rgba(237,240,233,.28); transition: background 200ms var(--ease); }
.partner-card:hover { background: rgba(237,240,233,.07); }
.partner-card span { display: block; margin-bottom: 46px; font-family: var(--serif); font-size: clamp(22px, 2.2vw, 35px); letter-spacing: -.045em; }
.partner-card p, .partner-card small { margin: 0; color: #bdcfcc; font-size: 11px; }
.partner-card small { display: block; margin-top: 7px; color: #799795; }

.writing-section { background: var(--paper-deep); }
.writing-heading { margin-bottom: 58px; }
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.article-card { min-height: 290px; padding: 25px 26px 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background 200ms var(--ease); }
.article-card:hover { background: rgba(255,255,255,.33); }
.article-number { display: block; margin-bottom: 45px; color: var(--clay); font-size: 10px; font-weight: 760; letter-spacing: .1em; }
h3 { max-width: 290px; margin-bottom: 14px; font-family: var(--serif); font-size: clamp(23px, 2.4vw, 34px); font-weight: 400; letter-spacing: -.04em; line-height: 1; }
.article-card p { min-height: 67px; margin-bottom: 18px; color: var(--muted); font-size: 13px; line-height: 1.5; }

.thun-section { display: grid; grid-template-columns: minmax(310px, .62fr) minmax(0, 1.38fr); max-width: 1440px; margin: auto; border-top: 1px solid var(--line); }
.thun-copy { padding: clamp(76px, 10vw, 150px) clamp(26px, 5vw, 86px); background: var(--clay); color: #fff7ec; }
.thun-copy .section-kicker { color: #f0c1a4; }
.thun-copy h2 { margin-bottom: 30px; }
.thun-copy p { max-width: 375px; margin: 0; color: #ffe6d1; font-size: 14px; line-height: 1.55; }
.thun-gallery { display: grid; grid-template-columns: 1.05fr .85fr; grid-template-rows: 1fr 1fr; min-height: 630px; }
.thun-image { position: relative; min-height: 0; margin: 0; overflow: hidden; background: #afcbd0; }
.thun-image--1 { grid-row: span 2; background: linear-gradient(140deg, #b9d6d8 0%, #d8e2d2 52%, #759aa4 100%); }
.thun-image--2 { background: linear-gradient(140deg, #d8be91 0%, #d9c5ac 45%, #8ca8a7 100%); }
.thun-image--3 { background: linear-gradient(140deg, #9ebdcb 0%, #ccdfdc 52%, #6a8a92 100%); }
.thun-sun { position: absolute; top: 17%; right: 18%; width: 18%; aspect-ratio: 1; border-radius: 50%; background: rgba(255, 236, 193, .9); }
.thun-mountain { position: absolute; bottom: 24%; width: 90%; height: 47%; background: #476d76; clip-path: polygon(0 100%, 51% 8%, 100% 100%); }
.thun-mountain--a { left: -24%; opacity: .73; }
.thun-mountain--b { right: -29%; height: 39%; background: #294f5a; opacity: .64; clip-path: polygon(0 100%, 42% 0, 100% 100%); }
.thun-water { position: absolute; right: 0; bottom: 0; left: 0; height: 29%; background: repeating-linear-gradient(169deg, rgba(239,246,239,.4) 0 1px, transparent 1px 11px), rgba(48,93,106,.65); }
.thun-image--2 .thun-water { height: 23%; background-color: rgba(59,97,106,.57); }
.thun-image--3 .thun-mountain { background: #355c69; }
.thun-image figcaption { position: absolute; right: 13px; bottom: 13px; left: 13px; padding-top: 8px; border-top: 1px solid rgba(255,255,255,.65); color: white; font-size: 10px; font-weight: 720; letter-spacing: .08em; text-shadow: 0 1px 5px rgba(0,0,0,.25); }

.contact-section { padding-bottom: clamp(86px, 11vw, 180px); }
.contact-content { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(240px, .58fr); gap: clamp(36px, 9vw, 130px); }
.contact-content h2 { margin-bottom: 0; }
.contact-content > div { padding-top: 6px; }
.contact-content p { max-width: 390px; margin-bottom: 29px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.email-link { display: inline-flex; gap: 11px; align-items: center; padding-bottom: 5px; border-bottom: 2px solid var(--clay); color: var(--lake); font-family: var(--serif); font-size: clamp(22px, 2.2vw, 33px); letter-spacing: -.035em; transition: color 180ms var(--ease); }
.email-link:hover { color: var(--clay); }
.contact-content .email-note { margin-top: 9px; margin-bottom: 0; color: var(--clay); font-size: 10px; font-weight: 720; letter-spacing: .09em; }

.site-footer { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(240px, .55fr); gap: 50px; padding: 45px clamp(26px, 6vw, 98px); background: var(--ink); color: #eae8df; }
.site-footer .wordmark { margin-bottom: 15px; }
.site-footer p { max-width: 365px; margin: 0; color: #a6aaa1; font-size: 12px; line-height: 1.45; }
.footer-meta { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; color: #a6aaa1; font-size: 11px; }
.footer-meta a { color: #eae8df; border-bottom: 1px solid rgba(234,232,223,.37); }
.footer-meta a:hover { color: var(--clay-pale); }

@media (max-width: 980px) {
  .site-header { grid-template-columns: auto 1fr; padding: 20px 27px; gap: 18px; }
  .primary-nav { display: none; }
  .language-nav { justify-self: end; }
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-copy { padding: 84px 9vw 72px; }
  .portrait-stage { min-height: min(600px, 110vw); }
  .profile-section, .work-section { grid-template-columns: 1fr; gap: 36px; }
  .profile-content, .contact-content { grid-template-columns: 1fr; gap: 28px; }
  .section-heading-row { grid-template-columns: 1fr; gap: 27px; margin-bottom: 43px; }
  .thun-section { grid-template-columns: 1fr; }
  .thun-copy { padding: 78px 9vw; }
}

@media (max-width: 650px) {
  .draft-banner { font-size: 8px; letter-spacing: .08em; }
  .site-header { padding: 17px 19px; }
  .wordmark { font-size: 12px; }
  .language-nav { gap: 0; font-size: 10px; }
  .language-nav a { padding: 5px 6px; }
  .hero-copy { padding: 68px 25px 54px; }
  h1 { margin-bottom: 28px; font-size: clamp(54px, 15vw, 76px); }
  .hero-intro { font-size: 21px; }
  .portrait-stage { min-height: 430px; }
  .portrait-caption { padding: 14px 16px; font-size: 8px; }
  .portrait-index { top: 17px; right: 19px; }
  .section-frame { padding: 72px 25px; }
  h2 { font-size: clamp(42px, 12vw, 63px); }
  .books-grid, .article-grid { grid-template-columns: 1fr; gap: 36px; }
  .book-copy > p:nth-child(2), .article-card p { min-height: auto; }
  .book-cover { aspect-ratio: 1.04; }
  .work-section { padding: 72px 25px; }
  .partner-card { min-height: 160px; padding: 17px; }
  .partner-card span { margin-bottom: 27px; font-size: 24px; }
  .article-grid { border-right: 1px solid var(--line); }
  .article-card { min-height: 0; padding: 23px 20px 27px; }
  .article-number { margin-bottom: 26px; }
  .thun-gallery { min-height: 550px; grid-template-columns: 1fr 1fr; }
  .thun-copy { padding: 72px 25px; }
  .site-footer { grid-template-columns: 1fr; gap: 34px; padding: 37px 25px; }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-copy > * { animation: rise-in 600ms var(--ease) both; }
  .hero-copy > :nth-child(2) { animation-delay: 50ms; }
  .hero-copy > :nth-child(3) { animation-delay: 100ms; }
  .hero-copy > :nth-child(4) { animation-delay: 150ms; }
  .hero-copy > :nth-child(5) { animation-delay: 200ms; }
  .portrait-stage { animation: fade-in 700ms var(--ease) both 80ms; }
  @keyframes rise-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
  @keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
}

/* v0.2.0 — Marcus Bäckmann content update */
.portrait-stage--photo { background: var(--lake-dark); }
.portrait-stage--photo::before { width: 68%; height: 68%; top: 9%; right: -10%; border-color: rgba(244, 240, 232, .46); }
.portrait-stage--photo::after { width: 35%; right: 6%; bottom: 12%; border-color: rgba(220, 173, 145, .8); }
.portrait-photo { position: absolute; z-index: 1; width: 100%; height: 100%; object-fit: cover; object-position: 56% center; filter: saturate(.88) contrast(1.02); }
.portrait-stage--photo::marker { display: none; }
.portrait-stage--photo .portrait-index { z-index: 6; color: var(--paper); text-shadow: 0 1px 8px rgba(0,0,0,.28); }
.portrait-stage--photo .portrait-orbit { z-index: 4; }
.portrait-stage--photo .portrait-caption { z-index: 8; background: rgba(23, 56, 69, .82); backdrop-filter: blur(6px); }

.bibliography-section { background: #ebe5da; }
.bibliography-heading { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(260px, .55fr); align-items: end; gap: 40px; margin-bottom: 58px; }
.bibliography-heading > p { max-width: 385px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.bibliography-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.bibliography-row { display: grid; grid-template-columns: 70px minmax(0, 1fr); gap: 25px; padding: 19px 0; border-bottom: 1px solid var(--line); }
.bibliography-year { color: var(--clay); font-size: 11px; font-weight: 770; letter-spacing: .08em; }
.bibliography-row strong { display: block; margin-bottom: 4px; font-family: var(--serif); font-size: 22px; font-weight: 400; letter-spacing: -.025em; line-height: 1.05; }
.bibliography-row span:not(.bibliography-year) { display: block; max-width: 830px; color: var(--muted); font-size: 13px; line-height: 1.5; }
.bibliography-note { max-width: 820px; margin: 32px 0 0 95px; color: var(--muted); font-size: 13px; line-height: 1.55; }

.patents-section { background: var(--paper); }
.patents-heading { margin-bottom: 56px; }
.patent-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.patent-card { min-height: 260px; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background 200ms var(--ease); }
.patent-card:hover { background: rgba(49, 91, 107, .055); }
.patent-meta { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 44px; color: var(--clay); font-size: 10px; font-weight: 760; letter-spacing: .09em; }
.patent-card h3 { max-width: 390px; margin-bottom: 17px; font-size: clamp(25px, 2.4vw, 36px); }
.patent-card p { max-width: 390px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.5; }

.substack-callout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .55fr); gap: clamp(42px, 8vw, 130px); padding: clamp(41px, 6vw, 80px); background: var(--lake); color: var(--paper); }
.substack-label { margin: 0 0 18px; color: var(--clay-pale); font-size: 10px; font-weight: 760; letter-spacing: .13em; }
.substack-callout h2 { font-size: clamp(42px, 5vw, 77px); }
.substack-copy { align-self: end; }
.substack-copy p { margin-bottom: 27px; color: #d4e1dc; font-size: 14px; line-height: 1.55; }
.substack-link { display: inline-flex; gap: 9px; align-items: center; padding-bottom: 5px; border-bottom: 1px solid var(--clay-pale); color: #fff9f1; font-family: var(--serif); font-size: clamp(18px, 1.7vw, 25px); letter-spacing: -.025em; transition: color 180ms var(--ease); }
.substack-link:hover { color: var(--clay-pale); }

@media (max-width: 980px) {
  .bibliography-heading, .substack-callout { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 650px) {
  .bibliography-row { grid-template-columns: 55px minmax(0, 1fr); gap: 13px; padding: 16px 0; }
  .bibliography-row strong { font-size: 20px; }
  .bibliography-note { margin-left: 0; }
  .patent-grid { grid-template-columns: 1fr; border-right: 1px solid var(--line); }
  .patent-card { min-height: 0; padding: 22px 20px 27px; }
  .patent-meta { margin-bottom: 28px; }
  .substack-callout { padding: 36px 25px; }
}

/* v0.3.0 — cached Substack feed */
.latest-section { max-width: 1440px; margin: auto; padding: clamp(76px, 9vw, 150px) clamp(26px, 6vw, 98px); border-top: 1px solid var(--line); background: var(--paper); }
.latest-layout { display: grid; grid-template-columns: minmax(260px, .68fr) minmax(0, 1.15fr); gap: clamp(48px, 9vw, 150px); }
.latest-intro h2 { margin-bottom: 24px; }
.latest-intro > p:last-child { max-width: 335px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.feed-list { border-top: 1px solid var(--line); }
.feed-item { display: grid; grid-template-columns: 85px minmax(0, 1fr) auto; gap: 18px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--line); }
.feed-date { color: var(--clay); font-size: 10px; font-weight: 760; letter-spacing: .08em; }
.feed-item h3 { margin: 0; font-size: clamp(21px, 2.1vw, 30px); line-height: 1.05; }
.feed-item a { display: inline-flex; gap: 6px; align-items: center; color: var(--lake); font-size: 11px; font-weight: 760; transition: color 160ms var(--ease), transform 160ms var(--ease); }
.feed-item a:hover { color: var(--clay); transform: translateX(2px); }
.feed-empty { margin: 0; color: var(--muted); font-size: 14px; }
@media (max-width: 980px) { .latest-layout { grid-template-columns: 1fr; gap: 34px; } }
@media (max-width: 650px) { .latest-section { padding: 72px 25px; } .feed-item { grid-template-columns: 1fr auto; gap: 7px 15px; } .feed-date { grid-column: 1 / -1; } }

/* v0.4.0 — selected projects and own Thun photography */
.projects-section { background: #e9e2d5; }
.projects-heading { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(260px, .55fr); align-items: end; gap: 40px; margin-bottom: 62px; }
.projects-heading > p { max-width: 370px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 3vw, 48px); }
.project-card { min-width: 0; }
.project-video { position: relative; display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--lake-dark); box-shadow: 12px 14px 0 rgba(32,33,30,.08); }
.project-video::after { position: absolute; inset: 0; content: ""; background: linear-gradient(180deg, rgba(17,31,33,.04) 28%, rgba(17,31,33,.67) 100%); transition: background 220ms var(--ease); }
.project-video img { width: 100%; height: 100%; display: block; object-fit: cover; transition: transform 480ms var(--ease), filter 300ms var(--ease); filter: saturate(.82) contrast(1.04); }
.project-video:hover img { transform: scale(1.045); filter: saturate(1.03) contrast(1.05); }
.project-video:hover::after { background: linear-gradient(180deg, rgba(17,31,33,.01) 28%, rgba(17,31,33,.78) 100%); }
.project-play { position: absolute; z-index: 1; top: 50%; left: 50%; display: grid; width: 52px; height: 52px; place-items: center; padding-left: 3px; border: 1px solid rgba(255,255,255,.8); border-radius: 50%; color: white; font-size: 15px; line-height: 1; transform: translate(-50%, -50%); transition: color 180ms var(--ease), background 180ms var(--ease), transform 180ms var(--ease); }
.project-video:hover .project-play { background: var(--clay); border-color: var(--clay); transform: translate(-50%, -50%) scale(1.06); }
.project-video-note { position: absolute; z-index: 1; right: 16px; bottom: 14px; left: 16px; padding-top: 8px; border-top: 1px solid rgba(255,255,255,.66); color: white; font-size: 9px; font-weight: 760; letter-spacing: .1em; }
.project-video-note b { float: right; font-size: 12px; }
.project-copy { padding: 23px 2px 0; }
.project-meta { display: flex; gap: 9px; align-items: baseline; margin-bottom: 16px; color: var(--clay); font-size: 10px; font-weight: 760; letter-spacing: .075em; line-height: 1.35; }
.project-meta span { padding-right: 9px; border-right: 1px solid rgba(166,85,59,.45); }
.project-copy h3 { max-width: 400px; margin-bottom: 14px; font-size: clamp(25px, 2.45vw, 37px); line-height: .98; }
.project-copy > p:last-child { max-width: 420px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.53; }
.thun-image { background: var(--lake-dark); }
.thun-image img { width: 100%; height: 100%; display: block; object-fit: cover; transition: transform 600ms var(--ease), filter 400ms var(--ease); filter: saturate(.88) contrast(1.03); }
.thun-image:hover img { transform: scale(1.035); filter: saturate(1.04) contrast(1.04); }
.thun-image::after { position: absolute; z-index: 1; inset: 0; content: ""; pointer-events: none; background: linear-gradient(180deg, transparent 48%, rgba(16,34,38,.48) 100%); }
.thun-image figcaption { z-index: 2; }
@media (max-width: 980px) { .projects-heading { grid-template-columns: 1fr; gap: 27px; margin-bottom: 43px; } .projects-grid { grid-template-columns: 1fr 1fr; } .project-card:last-child { grid-column: span 2; max-width: calc(50% - 12px); } }
@media (max-width: 650px) { .projects-grid { grid-template-columns: 1fr; gap: 43px; } .project-card:last-child { grid-column: auto; max-width: none; } .project-play { width: 48px; height: 48px; } }

/* v0.5.0 — contact form, legal pages and linked partners */
.inline-company-link { color: #e4e7dd; border-bottom: 1px solid rgba(228,231,221,.45); transition: color 160ms var(--ease), border-color 160ms var(--ease); }
.inline-company-link:hover { color: var(--clay-pale); border-color: var(--clay-pale); }
.work-digital-note { margin-top: 22px !important; color: #b8cbc8 !important; font-size: 13px !important; }
.work-teaching-note { margin-top: 16px !important; color: #98b3af !important; font-size: 13px !important; }
.utility-page { min-height: 100vh; background: var(--paper); }
.utility-header { display: flex; align-items: center; justify-content: space-between; gap: 22px; max-width: 1440px; margin: auto; padding: 25px clamp(25px, 6vw, 98px); border-bottom: 1px solid var(--line); }
.back-link { display: inline-flex; gap: 8px; align-items: center; color: var(--lake); font-size: 11px; font-weight: 760; letter-spacing: .05em; transition: color 160ms var(--ease), transform 160ms var(--ease); }
.back-link:hover { color: var(--clay); transform: translateX(-2px); }
.utility-main { max-width: 1140px; margin: auto; padding: clamp(72px, 10vw, 144px) clamp(25px, 6vw, 98px); }
.utility-kicker { margin: 0 0 22px; color: var(--clay); font-size: 11px; font-weight: 760; letter-spacing: .13em; }
.utility-title { max-width: 700px; margin: 0 0 52px; font-family: var(--serif); font-size: clamp(53px, 7vw, 99px); font-weight: 400; letter-spacing: -.052em; line-height: .91; }
.contact-layout { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(260px, .55fr); gap: clamp(45px, 9vw, 150px); }
.contact-form { border-top: 1px solid var(--line); }
.form-field { display: flex; flex-direction: column; padding: 21px 0; border-bottom: 1px solid var(--line); }
.form-field label { margin-bottom: 8px; color: var(--lake); font-size: 10px; font-weight: 770; letter-spacing: .1em; }
.form-field input, .form-field textarea { width: 100%; border: 0; border-radius: 0; outline: 0; background: transparent; color: var(--ink); font: 400 19px/1.45 var(--serif); }
.form-field textarea { min-height: 170px; resize: vertical; }
.form-field input::placeholder, .form-field textarea::placeholder { color: #949087; }
.form-field input:focus, .form-field textarea:focus { box-shadow: 0 2px 0 var(--clay); }
.form-honeypot { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.form-action { display: inline-flex; align-items: center; gap: 12px; margin-top: 32px; padding: 15px 21px; border: 1px solid var(--lake); background: var(--lake); color: var(--paper); font: 720 11px/1 var(--sans); letter-spacing: .08em; transition: transform 160ms var(--ease), background 160ms var(--ease), color 160ms var(--ease); }
.form-action:hover { background: var(--clay); border-color: var(--clay); transform: translateY(-2px); }
.form-action:active { transform: scale(.97); }
.form-notice { margin: 26px 0 0; padding: 14px 16px; border-left: 3px solid var(--clay); background: #ece6d9; color: #46463f; font-size: 13px; line-height: 1.5; }
.contact-aside { padding-top: 5px; }
.contact-aside p { max-width: 360px; color: var(--muted); font-size: 14px; line-height: 1.58; }
.contact-aside h2 { margin: 0 0 22px; font-size: clamp(33px, 4vw, 56px); }
.contact-aside .small-note { margin-top: 34px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.legal-content { max-width: 790px; }
.legal-content h2 { margin: 62px 0 18px; font-size: clamp(34px, 4vw, 57px); }
.legal-content h3 { margin: 31px 0 10px; color: var(--lake); font-family: var(--sans); font-size: 12px; font-weight: 770; letter-spacing: .08em; }
.legal-content p, .legal-content li { max-width: 720px; color: #4d4c45; font-size: 15px; line-height: 1.65; }
.legal-content ul { padding-left: 20px; }
.legal-content a { color: var(--lake); border-bottom: 1px solid rgba(49,91,107,.45); }
.legal-pending { margin: 28px 0; padding: 16px 18px; border-left: 3px solid var(--clay); background: #ece6d9; color: #5d493f; font-size: 13px; line-height: 1.55; }
.utility-footer { max-width: 1440px; margin: auto; padding: 35px clamp(25px, 6vw, 98px); border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
@media (max-width: 700px) { .utility-header { padding: 18px 25px; } .utility-main { padding: 70px 25px; } .contact-layout { grid-template-columns: 1fr; gap: 47px; } .utility-title { margin-bottom: 42px; } .form-field input, .form-field textarea { font-size: 18px; } .legal-content h2 { margin-top: 48px; } }

/* v0.6.0 — authentic book covers */
.book-cover--photo { display: block; padding: 0; background: #262726; box-shadow: 12px 14px 0 rgba(32,33,30,.08); }
.book-cover--photo::before, .book-cover--photo::after { display: none; }
.book-cover--photo img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform 300ms var(--ease), filter 240ms var(--ease); filter: saturate(.94) contrast(1.02); }
.book-card:hover .book-cover--photo img { transform: scale(1.025); filter: saturate(1.05) contrast(1.04); }

/* v0.6.0 — Kamingespräche channel feed */
.kamin-section { background: #e7ded0; }
.kamin-heading { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, .55fr); align-items: end; gap: clamp(42px, 8vw, 130px); margin-bottom: 62px; }
.kamin-heading h2 { max-width: 720px; }
.kamin-heading > div:last-child { align-self: end; }
.kamin-heading p { max-width: 385px; margin: 0 0 27px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.kamin-heading strong { color: var(--lake-dark); }
.kamin-channel-link { display: inline-flex; gap: 8px; align-items: center; padding-bottom: 5px; border-bottom: 1px solid var(--clay); color: var(--lake); font-family: var(--serif); font-size: clamp(18px, 1.7vw, 25px); letter-spacing: -.025em; transition: color 180ms var(--ease); }
.kamin-channel-link:hover { color: var(--clay); }
.kamin-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 3vw, 48px); }
.kamin-card { min-width: 0; }
.kamin-video { position: relative; display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--lake-dark); box-shadow: 12px 14px 0 rgba(32,33,30,.08); }
.kamin-video::after { position: absolute; inset: 0; content: ""; background: linear-gradient(180deg, rgba(17,31,33,.02) 28%, rgba(17,31,33,.72) 100%); transition: background 220ms var(--ease); }
.kamin-video img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 480ms var(--ease), filter 300ms var(--ease); filter: saturate(.88) contrast(1.03); }
.kamin-video:hover img { transform: scale(1.05); filter: saturate(1.06) contrast(1.06); }
.kamin-video:hover::after { background: linear-gradient(180deg, rgba(17,31,33,.01) 28%, rgba(17,31,33,.82) 100%); }
.kamin-fallback { display: grid; width: 100%; height: 100%; place-items: center; background: var(--lake-dark); color: var(--paper); font-family: var(--serif); font-size: 35px; line-height: .85; text-align: center; }
.kamin-play { position: absolute; z-index: 1; top: 50%; left: 50%; display: grid; width: 52px; height: 52px; place-items: center; padding-left: 3px; border: 1px solid rgba(255,255,255,.8); border-radius: 50%; color: white; font-size: 15px; line-height: 1; transform: translate(-50%, -50%); transition: color 180ms var(--ease), background 180ms var(--ease), transform 180ms var(--ease); }
.kamin-video:hover .kamin-play { background: var(--clay); border-color: var(--clay); transform: translate(-50%, -50%) scale(1.06); }
.kamin-video-note { position: absolute; z-index: 1; right: 16px; bottom: 14px; left: 16px; padding-top: 8px; border-top: 1px solid rgba(255,255,255,.66); color: white; font-size: 9px; font-weight: 760; letter-spacing: .1em; }
.kamin-video-note b { float: right; font-size: 12px; }
.kamin-copy { padding: 22px 2px 0; }
.kamin-copy time { display: block; margin-bottom: 15px; color: var(--clay); font-size: 10px; font-weight: 760; letter-spacing: .085em; }
.kamin-copy h3 { margin-bottom: 18px; font-size: clamp(25px, 2.45vw, 37px); line-height: .98; }
.kamin-copy > a { display: inline-flex; gap: 7px; align-items: center; color: var(--lake); font-size: 11px; font-weight: 760; transition: color 160ms var(--ease), transform 160ms var(--ease); }
.kamin-copy > a:hover { color: var(--clay); transform: translateX(2px); }
@media (max-width: 980px) { .kamin-heading { grid-template-columns: 1fr; gap: 27px; margin-bottom: 43px; } .kamin-grid { grid-template-columns: 1fr 1fr; } .kamin-card:last-child { grid-column: span 2; max-width: calc(50% - 12px); } }
@media (max-width: 650px) { .kamin-grid { grid-template-columns: 1fr; gap: 43px; } .kamin-card:last-child { grid-column: auto; max-width: none; } .kamin-play { width: 48px; height: 48px; } }

/* v0.7.0 — unified Kamingespräche cards and bounded book covers */
.project-fallback { display: grid; width: 100%; height: 100%; place-items: center; background: var(--lake-dark); color: var(--paper); font-family: var(--serif); font-size: 35px; line-height: .85; text-align: center; }
.books-grid { grid-template-columns: repeat(3, minmax(0, 260px)); justify-content: space-between; gap: 52px 28px; }
.book-card { width: 100%; max-width: 260px; }
.book-cover--photo { width: min(100%, 200px); height: 275px; aspect-ratio: 75 / 103; }
.book-cover--photo img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
@media (max-width: 980px) { .books-grid { grid-template-columns: repeat(2, minmax(0, 260px)); justify-content: start; column-gap: clamp(28px, 8vw, 72px); } }
@media (max-width: 650px) { .books-grid { grid-template-columns: 1fr; gap: 42px; } .book-cover--photo { width: 200px; height: 275px; } }

/* v0.9.0 — Simplified Chinese language refinement */
body[data-language="zh"] { font-family: "Noto Sans CJK SC", "Microsoft YaHei", "PingFang SC", var(--sans); }
body[data-language="zh"] h1, body[data-language="zh"] h2, body[data-language="zh"] h3, body[data-language="zh"] .profile-link, body[data-language="zh"] .substack-link, body[data-language="zh"] .kamin-channel-link, body[data-language="zh"] .email-link { font-family: "Noto Serif CJK SC", "Songti SC", "SimSun", var(--serif); letter-spacing: -.02em; }
body[data-language="zh"] .eyebrow, body[data-language="zh"] .section-kicker, body[data-language="zh"] .project-meta, body[data-language="zh"] .book-meta, body[data-language="zh"] .patent-meta, body[data-language="zh"] .feed-date { letter-spacing: .04em; }
body[data-language="zh"] .primary-nav { font-size: 13px; }
@media (max-width: 650px) { body[data-language="zh"] .hero-intro { font-size: 20px; } }