/* ============================================================
   EUROSTROKES — shared stylesheet
   One file for the whole site. Edit here, every page updates.
   ============================================================ */

:root {
  --navy: #0A2540;
  --navy-deep: #061830;
  --ink: #1A2733;
  --grey-600: #4B5563;
  --grey-500: #6B7280;
  --grey-300: #D1D5DB;
  --grey-100: #F3F4F6;
  --grey-50: #F8FAFC;
  --accent: #0295A2;
  --accent-deep: #017783;
  --accent-soft: #E2F3F4;
  --clay: #B65F48;
  --clay-soft: #F5E8E2;
  --paper: #F6F7F4;
  --gold: #B8945A;
  --white: #FFFFFF;
  --radius: 12px;
  --radius-lg: 22px;
  --max: 1220px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--ink); line-height: 1.55; font-size: 17px;
  background: var(--white); -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: 'Source Serif 4', Georgia, serif; color: var(--navy); line-height: 1.2; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.2rem, 4.8vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 1rem; }
h3 { font-size: 1.2rem; margin-bottom: 0.6rem; }
h4 { font-size: 0.95rem; font-family: 'Inter', sans-serif; text-transform: uppercase; letter-spacing: 0.12em; color: var(--accent); font-weight: 600; margin-bottom: 0.8rem; }
p { color: var(--grey-600); margin-bottom: 1rem; }
a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--accent); }
.container { max-width: var(--max); margin: 0 auto; padding: 0 28px; }
.section { padding: 84px 0; }

/* NAV */
nav.topbar { border-bottom: 1px solid var(--grey-100); background: var(--white); position: sticky; top: 0; z-index: 50; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 28px; max-width: var(--max); margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 34px; width: auto; display: block; }
.brand .wordmark { font-family: 'Source Serif 4', serif; font-size: 1.3rem; font-weight: 600; color: var(--navy); letter-spacing: 0.01em; }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { font-size: 0.95rem; color: var(--grey-600); font-weight: 500; }
.nav-links a:hover { color: var(--navy); }
.nav-links a.active { color: var(--navy); }
.nav-cta { background: var(--navy); color: var(--white) !important; padding: 9px 17px; border-radius: var(--radius); font-size: 0.9rem; font-weight: 500; }
.nav-cta:hover { background: var(--accent); color: var(--white) !important; }

/* HERO (home) */
.hero { background: linear-gradient(180deg, #FAFBFC 0%, #FFFFFF 100%); padding: 92px 0 68px; border-bottom: 1px solid var(--grey-100); }
.hero-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 60px; align-items: center; }
.hero-tag { display: inline-block; font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.16em; color: var(--accent); margin-bottom: 20px; }
.hero h1 { margin-bottom: 22px; }
.hero .lede { font-size: 1.14rem; color: var(--grey-600); margin-bottom: 30px; max-width: 560px; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 13px 23px; border-radius: var(--radius); font-weight: 500; font-size: 0.97rem; transition: all 0.18s; border: 1.5px solid transparent; cursor: pointer; }
.btn-primary { background: var(--navy); color: var(--white) !important; }
.btn-primary:hover { background: var(--accent); }
.btn-ghost { border-color: var(--grey-300); color: var(--navy) !important; }
.btn-ghost:hover { border-color: var(--navy); background: var(--navy); color: var(--white) !important; }
.hero-card { background: var(--white); border: 1px solid var(--grey-100); border-radius: 10px; padding: 30px; box-shadow: 0 1px 3px rgba(10,37,64,0.04), 0 12px 36px rgba(10,37,64,0.06); }
.hero-card h4 { color: var(--grey-500); }
.hero-card .principal { font-family: 'Source Serif 4', serif; font-size: 1.4rem; color: var(--navy); margin-bottom: 4px; font-weight: 600; }
.hero-card .role { color: var(--grey-600); font-size: 0.95rem; margin-bottom: 16px; }
.hero-card ul { list-style: none; }
.hero-card li { font-size: 0.9rem; color: var(--grey-600); padding: 9px 0; border-top: 1px solid var(--grey-100); display: flex; align-items: baseline; gap: 10px; }
.hero-card li::before { content: ""; width: 5px; height: 5px; background: var(--accent); border-radius: 50%; flex-shrink: 0; transform: translateY(-2px); }

/* TRUST BAR */
.trust { background: var(--navy); color: var(--white); padding: 26px 0; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.trust-item .num { font-family: 'Source Serif 4', serif; font-size: 1.9rem; font-weight: 600; color: var(--white); display: block; }
.trust-item .label { font-size: 0.78rem; color: rgba(255,255,255,0.7); text-transform: uppercase; letter-spacing: 0.08em; }

/* AWARD BAND */
.award { background: var(--grey-50); border-bottom: 1px solid var(--grey-100); padding: 60px 0; }
.award-grid { display: grid; grid-template-columns: 200px 1fr; gap: 44px; align-items: center; max-width: 960px; margin: 0 auto; }
.award-medal { width: 150px; height: 150px; border-radius: 50%; margin: 0 auto; background: radial-gradient(circle at 35% 30%, #d8b877, var(--gold) 55%, #8c6b39); display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 30px rgba(184,148,90,0.35); border: 4px solid #e7d2a6; }
.award-medal span { font-family: 'Source Serif 4', serif; color: #fff; font-size: 2.2rem; font-weight: 600; text-shadow: 0 1px 2px rgba(0,0,0,0.2); }
.award-body h2 { font-size: 1.5rem; margin-bottom: 8px; }
.award-body .who { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent); font-weight: 600; margin-bottom: 12px; }
.award-body p { font-size: 1rem; margin-bottom: 16px; }

/* SECTION HEAD */
.head { max-width: 760px; margin-bottom: 46px; }

/* PROJECTS */
.projects { background: var(--white); }
.proj-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.proj-card { border: 1px solid var(--grey-100); padding: 28px; border-radius: 10px; transition: all 0.2s; display: flex; flex-direction: column; background: var(--white); color: inherit; }
.proj-card:hover { border-color: var(--navy); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(10,37,64,0.08); }
.proj-card h4 { color: var(--accent); margin-bottom: 10px; }
.proj-card h3 { font-family: 'Source Serif 4', serif; margin-bottom: 10px; font-size: 1.15rem; color: var(--navy); }
.proj-card p { font-size: 0.93rem; margin: 0; }
.proj-card .status { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--grey-100); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--grey-500); font-weight: 600; display: flex; justify-content: space-between; align-items: center; }
.proj-card .status .arrow { color: var(--accent); font-weight: 700; opacity: 0; transform: translateX(-4px); transition: all 0.2s; }
.proj-card:hover .status .arrow { opacity: 1; transform: translateX(0); }

/* LIVETEXTBOOK TEASER */
.lt { background: var(--navy); color: var(--white); padding: 76px 0; position: relative; overflow: hidden; }
.lt::before { content: ""; position: absolute; top: 0; right: -10%; width: 50%; height: 100%; background: radial-gradient(circle at 60% 50%, rgba(180,58,46,0.15), transparent 60%); pointer-events: none; }
.lt-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center; position: relative; }
.lt h4 { color: var(--gold); }
.lt h2 { color: var(--white); }
.lt p { color: rgba(255,255,255,0.78); font-size: 1.04rem; }
.lt .btn-ghost { border-color: rgba(255,255,255,0.3); color: var(--white) !important; }
.lt .btn-ghost:hover { background: var(--white); color: var(--navy) !important; border-color: var(--white); }
.lt-vis { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.12); border-radius: 10px; padding: 26px; font-family: 'JetBrains Mono', 'SF Mono', monospace; font-size: 0.78rem; color: rgba(255,255,255,0.85); }
.lt-vis .row { padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.lt-vis .row:last-child { border: none; }
.lt-vis .k { color: var(--gold); }
.lt-vis .label-row { text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.7rem; color: rgba(255,255,255,0.5); margin-bottom: 12px; }
.lt-vis .conf { margin-top: 14px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,0.12); font-size: 0.72rem; color: rgba(255,255,255,0.55); font-family: 'Inter', sans-serif; }

/* ABOUT */
.about { background: var(--grey-50); }
.about-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: start; }
.about-portrait { background: var(--white); border-radius: 10px; padding: 30px; border: 1px solid var(--grey-100); text-align: center; }
.portrait-circle { width: 124px; height: 124px; border-radius: 50%; background: linear-gradient(135deg, var(--navy), var(--accent)); margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; color: var(--white); font-family: 'Source Serif 4', serif; font-size: 2.3rem; font-weight: 600; }
.portrait-name { font-family: 'Source Serif 4', serif; font-size: 1.25rem; color: var(--navy); font-weight: 600; }
.portrait-title { color: var(--grey-600); font-size: 0.9rem; margin-top: 6px; }
.about-body p { font-size: 1.02rem; }
.about-body p + p { margin-top: 14px; }

/* CONTACT */
.contact { background: var(--navy); color: var(--white); padding: 72px 0; text-align: center; }
.contact h2 { color: var(--white); margin-bottom: 14px; }
.contact p { color: rgba(255,255,255,0.78); margin-bottom: 28px; font-size: 1.04rem; max-width: 600px; margin-left: auto; margin-right: auto; }
.contact .btn-primary { background: var(--accent); }
.contact .btn-primary:hover { background: var(--white); color: var(--navy) !important; }

/* FOOTER */
footer { background: var(--navy-deep); color: rgba(255,255,255,0.7); padding: 48px 0 26px; font-size: 0.92rem; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 36px; margin-bottom: 30px; }
.foot-grid h5 { color: var(--white); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px; font-weight: 600; font-family: 'Inter', sans-serif; }
.foot-grid a { display: block; color: rgba(255,255,255,0.6); margin-bottom: 8px; font-size: 0.9rem; }
.foot-grid a:hover { color: var(--white); }
.foot-brand p { color: rgba(255,255,255,0.55); font-size: 0.88rem; margin-top: 8px; max-width: 360px; }
.foot-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 18px; font-size: 0.8rem; color: rgba(255,255,255,0.5); }

/* ============================================================
   INNER PAGES (project / about / contact sub-pages)
   ============================================================ */

/* Language switcher — fixed top-right corner */
.lang-switch { position: fixed; top: 8px; right: 10px; z-index: 200; display: flex; background: var(--white); border: 1px solid var(--grey-300); border-radius: 999px; overflow: hidden; box-shadow: 0 2px 10px rgba(10,37,64,0.14); font-size: 0.72rem; font-weight: 700; }
.lang-switch a { padding: 4px 11px; color: var(--grey-500); letter-spacing: 0.04em; line-height: 1.4; }
.lang-switch a.active { background: var(--navy); color: #fff; }
.lang-switch a:hover:not(.active) { color: var(--navy); }
@media (max-width: 560px) { .lang-switch { top: 6px; right: 6px; font-size: 0.68rem; } .lang-switch a { padding: 3px 9px; } }

/* Draft banner — shown across every page while the site is in review */
.draft-banner { background: var(--accent-soft); color: #7a261d; text-align: center; font-size: 0.82rem; padding: 8px 16px; border-bottom: 1px solid #e9cabf; }
.draft-banner strong { color: #5e1c15; }

/* Inner page hero */
.page-hero { background: linear-gradient(180deg, #FAFBFC 0%, #FFFFFF 100%); border-bottom: 1px solid var(--grey-100); padding: 56px 0 48px; }
.breadcrumb { font-size: 0.85rem; color: var(--grey-500); margin-bottom: 18px; }
.breadcrumb a { color: var(--grey-500); }
.breadcrumb a:hover { color: var(--accent); }
.page-hero .kicker { display: inline-block; font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.16em; color: var(--accent); margin-bottom: 14px; }
.page-hero h1 { font-size: clamp(1.9rem, 4vw, 2.9rem); margin-bottom: 18px; max-width: 820px; }
.page-hero .lede { font-size: 1.12rem; color: var(--grey-600); max-width: 720px; }

/* Status pill */
.pill { display: inline-flex; align-items: center; gap: 7px; font-size: 0.74rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; padding: 5px 11px; border-radius: 999px; border: 1px solid var(--grey-300); color: var(--grey-600); background: var(--white); margin-bottom: 16px; }
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--grey-500); }
.pill.ongoing::before { background: #2e7d52; }
.pill.dev::before { background: var(--gold); }
.pill.building::before { background: var(--accent); }
.pill.open::before { background: #2563eb; }

/* Work-in-progress notice */
.wip { background: #FFF8E6; border: 1px solid #F0DFAE; border-radius: var(--radius); padding: 16px 18px; font-size: 0.92rem; color: #6b5618; margin: 0 0 8px; display: flex; gap: 12px; align-items: flex-start; }
.wip .ico { flex-shrink: 0; font-size: 1.05rem; line-height: 1.3; }

/* Prose content + two-column body */
.content { padding: 64px 0; }
.content-grid { display: grid; grid-template-columns: 1fr 320px; gap: 56px; align-items: start; }
.prose { max-width: 760px; }
.prose h2 { margin-top: 8px; }
.prose h3 { color: var(--navy); margin-top: 30px; }
.prose p { font-size: 1.03rem; }
.prose ul { margin: 0 0 1rem 1.1rem; }
.prose li { color: var(--grey-600); margin-bottom: 0.5rem; font-size: 1.02rem; }
.prose .lead { font-size: 1.12rem; color: var(--ink); }

/* Side panel (status / facts) */
.side { position: sticky; top: 92px; }
.side-card { border: 1px solid var(--grey-100); border-radius: 10px; padding: 24px; background: var(--grey-50); margin-bottom: 18px; }
.side-card h5 { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--grey-500); margin-bottom: 14px; font-family: 'Inter', sans-serif; font-weight: 600; }
.side-card dl { display: grid; grid-template-columns: 1fr; gap: 12px; }
.side-card .row { display: flex; flex-direction: column; gap: 2px; border-top: 1px solid var(--grey-100); padding-top: 10px; }
.side-card .row:first-child { border-top: none; padding-top: 0; }
.side-card dt { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--grey-500); }
.side-card dd { font-size: 0.92rem; color: var(--ink); font-weight: 500; }

/* Status checklist (current progress vs next) */
.track { list-style: none; margin: 14px 0 0; }
.track li { position: relative; padding: 8px 0 8px 26px; font-size: 0.95rem; color: var(--grey-600); border-top: 1px solid var(--grey-100); }
.track li:first-child { border-top: none; }
.track li::before { position: absolute; left: 0; top: 8px; font-size: 0.9rem; }
.track li.done::before { content: "✓"; color: #2e7d52; font-weight: 700; }
.track li.now::before { content: "▶"; color: var(--accent); font-size: 0.7rem; top: 11px; }
.track li.next::before { content: "○"; color: var(--grey-300); }

/* Generic card grid for inner pages */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin: 8px 0; }
.cards .card { border: 1px solid var(--grey-100); border-radius: 10px; padding: 22px; background: var(--white); }
.cards .card h3 { font-size: 1.05rem; }
.cards .card p { font-size: 0.94rem; margin: 0; }

/* Publication list */
.pubs { list-style: none; margin: 8px 0 0; }
.pubs li { border-top: 1px solid var(--grey-100); padding: 16px 0; font-size: 0.97rem; color: var(--grey-600); }
.pubs li:first-child { border-top: none; }
.pubs .area { display: inline-block; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 600; margin-bottom: 4px; }
.pubs .ptitle { color: var(--ink); font-weight: 500; }
.pubs .doi { color: var(--accent); font-weight: 600; font-size: 0.84rem; white-space: nowrap; }

/* CTA strip */
.cta-strip { background: var(--grey-50); border-top: 1px solid var(--grey-100); padding: 48px 0; text-align: center; }
.cta-strip h3 { font-size: 1.4rem; margin-bottom: 10px; }
.cta-strip p { max-width: 560px; margin: 0 auto 22px; }

/* FIGURES / DIAGRAMS */
.figure { margin: 26px 0; }
.figure img, .figure svg { width: 100%; height: auto; display: block; border: 1px solid var(--grey-100); border-radius: 10px; background: var(--white); }
.figure figcaption { font-size: 0.82rem; color: var(--grey-500); margin-top: 10px; text-align: center; }
.figure-plain img, .figure-plain svg { border: none; }

/* Real photos (drop-in) */
.award-photo { width: 200px; height: 200px; border-radius: 10px; object-fit: cover; object-position: 50% 28%; display: block; margin: 0 auto; box-shadow: 0 10px 30px rgba(10,37,64,0.18); }
.portrait-photo { width: 124px; height: 124px; border-radius: 50%; object-fit: cover; margin: 0 auto 20px; display: block; }
.about-hero-photo { width: 100%; border-radius: 10px; object-fit: cover; display: block; margin-bottom: 18px; }

/* LinkedIn button + inline link */
.btn-linkedin { display: inline-flex; align-items: center; gap: 9px; }
.btn-linkedin svg { width: 17px; height: 17px; }
.nav-links a.li-link { display: inline-flex; align-items: center; gap: 6px; }
.nav-links a.li-link svg { width: 15px; height: 15px; }
.foot-social { display: inline-flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.6); margin-top: 6px; }
.foot-social:hover { color: var(--white); }
.foot-social svg { width: 16px; height: 16px; }

/* INDUSTRY band (home) */
.industry { background: var(--grey-50); border-top: 1px solid var(--grey-100); border-bottom: 1px solid var(--grey-100); padding: 56px 0; }
.industry-inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 44px; align-items: center; }
.industry h4 { color: var(--accent); }
.industry h2 { font-size: 1.6rem; margin-bottom: 10px; }
.industry p { font-size: 1.02rem; margin-bottom: 0; }
.industry .industry-cta { text-align: right; }
@media (max-width: 760px) { .industry-inner { grid-template-columns: 1fr; gap: 22px; } .industry .industry-cta { text-align: left; } }

/* INSIGHTS / LinkedIn feed page */
.feed { display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 8px; }
.post-card { border: 1px solid var(--grey-100); border-radius: 10px; padding: 22px 24px; background: var(--white); transition: all 0.18s; display: block; color: inherit; }
.post-card:hover { border-color: var(--navy); box-shadow: 0 8px 24px rgba(10,37,64,0.07); }
.post-card .meta { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--grey-500); font-weight: 600; margin-bottom: 8px; display: flex; gap: 10px; align-items: center; }
.post-card .meta .tag { color: var(--accent); }
.post-card h3 { font-size: 1.08rem; margin-bottom: 6px; }
.post-card p { font-size: 0.95rem; margin: 0; }
.post-card .more { display: inline-block; margin-top: 12px; font-size: 0.85rem; color: var(--accent); font-weight: 600; }

/* TALKS / academic page */
.talks { list-style: none; margin: 8px 0 0; }
.talks li { border-top: 1px solid var(--grey-100); padding: 18px 0; display: grid; grid-template-columns: 88px 1fr auto; gap: 18px; align-items: start; }
.talks li:first-child { border-top: none; }
.talks .yr { font-family: 'Source Serif 4', serif; font-size: 1.05rem; color: var(--accent); font-weight: 600; }
.talks .t-title { font-size: 1rem; color: var(--navy); font-weight: 600; }
.talks .t-meta { font-size: 0.88rem; color: var(--grey-500); margin-top: 3px; }
.talks .t-link a { font-size: 0.82rem; font-weight: 600; color: var(--accent); white-space: nowrap; }
@media (max-width: 560px) { .talks li { grid-template-columns: 1fr; gap: 4px; } }

/* RESPONSIVE */
@media (max-width: 900px) {
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 0.85rem; }
  .hero-grid, .lt-grid, .about-grid { grid-template-columns: 1fr; gap: 34px; }
  .proj-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 56px 0; }
  .hero { padding: 54px 0; }
  .content-grid { grid-template-columns: 1fr; gap: 36px; }
  .side { position: static; }
  .cards { grid-template-columns: 1fr; }
  .award-grid { grid-template-columns: 1fr; gap: 24px; text-align: center; }
}
@media (max-width: 560px) {
  .nav-links a:not(.nav-cta) { display: none; }
}

/* ============================================================
   V2 PREVIEW — human networks visual system
   Isolated preview only. The source site stylesheet is unchanged.
   ============================================================ */

body {
  background: #fbfcfc;
  background-image:
    radial-gradient(circle at 8% 6%, rgba(2,149,162,.045), transparent 28rem),
    radial-gradient(circle at 92% 20%, rgba(182,95,72,.035), transparent 25rem);
}

::selection { background: var(--accent-soft); color: var(--navy); }
a, .btn, summary { transition: color .18s ease, background .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid rgba(2,149,162,.38); outline-offset: 4px; border-radius: 6px; }

.container { padding-left: clamp(20px, 4vw, 42px); padding-right: clamp(20px, 4vw, 42px); }
.section { padding: clamp(68px, 8vw, 108px) 0; }
h1, h2, h3, h4 { text-wrap: balance; }
h1 { letter-spacing: -.035em; }
p { text-wrap: pretty; }

.draft-banner {
  background: linear-gradient(90deg, #e5f4f4, #f7eee9);
  color: #315560;
  border-bottom-color: rgba(2,149,162,.18);
  font-size: .75rem;
  letter-spacing: .025em;
}
.draft-banner strong { color: var(--navy); }

nav.topbar {
  background: rgba(255,255,255,.94);
  border-bottom-color: rgba(10,37,64,.08);
  box-shadow: 0 8px 30px rgba(10,37,64,.035);
  backdrop-filter: blur(18px);
}
.nav-inner { min-height: 74px; padding-top: 14px; padding-bottom: 14px; }
.brand img { height: 38px; }
.nav-links { gap: clamp(14px, 1.8vw, 28px); }
.nav-links a { position: relative; color: #3f5565; font-size: .89rem; }
.nav-links a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px;
  background: var(--accent); transition: right .18s ease;
}
.nav-links a:hover::after, .nav-links a.active::after { right: 0; }
.nav-cta { background: var(--accent); padding: 10px 18px; border-radius: 999px; box-shadow: 0 7px 18px rgba(2,149,162,.18); }
.nav-cta:hover { background: var(--accent-deep); transform: translateY(-1px); }

.nav-mobile { display: none; position: relative; }
.nav-toggle {
  appearance: none; cursor: pointer; border: 1px solid rgba(10,37,64,.14); border-radius: 999px;
  padding: 9px 14px; color: var(--navy); background: #fff; font: inherit; font-size: .86rem; font-weight: 700;
}
.nav-toggle::before { content: ""; display: inline-block; width: 15px; height: 10px; margin-right: 8px; border-top: 2px solid; border-bottom: 2px solid; }
.nav-toggle[aria-expanded="true"] { background: var(--navy); color: #fff; }
.mobile-panel[hidden] { display: none; }
.mobile-panel {
  position: absolute; right: 0; top: calc(100% + 12px); width: min(82vw, 320px); padding: 14px;
  border: 1px solid rgba(10,37,64,.1); border-radius: 16px; background: #fff;
  box-shadow: 0 22px 60px rgba(10,37,64,.17); display: grid; gap: 4px;
}
.mobile-panel a { padding: 11px 13px; border-radius: 10px; color: #3f5565; font-size: .92rem; font-weight: 600; }
.mobile-panel a:hover, .mobile-panel a.active { color: var(--navy); background: var(--accent-soft); }
.mobile-panel .nav-cta { color: #fff; text-align: center; margin-top: 5px; }

.lang-switch { top: 96px; right: 14px; border-color: rgba(10,37,64,.12); box-shadow: 0 8px 30px rgba(10,37,64,.1); }
.lang-switch a.active { background: var(--accent); }

.hero {
  padding: clamp(72px, 9vw, 116px) 0 clamp(68px, 7vw, 94px);
  background:
    linear-gradient(120deg, rgba(255,255,255,.98), rgba(245,250,249,.92)),
    radial-gradient(circle at 85% 20%, rgba(2,149,162,.14), transparent 32rem);
}
.hero-grid { grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); gap: clamp(42px, 7vw, 92px); }
.hero-tag { color: var(--accent-deep); background: var(--accent-soft); border-radius: 999px; padding: 7px 12px; letter-spacing: .12em; }
.hero h1 { font-size: clamp(2.75rem, 5.7vw, 5.25rem); max-width: 790px; }
.hero .lede { max-width: 690px; font-size: clamp(1.05rem, 1.45vw, 1.25rem); line-height: 1.65; }
.btn { border-radius: 999px; padding: 13px 22px; font-weight: 650; }
.btn-primary { background: var(--accent); box-shadow: 0 10px 24px rgba(2,149,162,.2); }
.btn-primary:hover { background: var(--accent-deep); transform: translateY(-2px); }
.btn-ghost { border-color: rgba(10,37,64,.2); background: rgba(255,255,255,.65); }

.hero-visual { position: relative; min-height: 470px; }
.hero-photo {
  position: absolute; inset: 0 0 44px 54px; width: calc(100% - 54px); height: calc(100% - 44px);
  border-radius: 26px; object-fit: cover; object-position: 55% 50%; box-shadow: 0 30px 75px rgba(10,37,64,.2);
}
.hero-network-card {
  position: absolute; left: 0; bottom: 0; width: min(75%, 360px); background: rgba(255,255,255,.96);
  border: 1px solid rgba(10,37,64,.08); border-radius: 18px; padding: 20px;
  box-shadow: 0 20px 60px rgba(10,37,64,.17); backdrop-filter: blur(12px);
}
.hero-network-card img { width: 100%; height: auto; display: block; }
.hero-network-card p { margin: 10px 0 0; font-size: .8rem; color: #536b78; }

.proof-ribbon { background: var(--navy); color: #fff; padding: 0; }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.proof-item { padding: 27px clamp(16px, 3vw, 34px); border-right: 1px solid rgba(255,255,255,.1); }
.proof-item:last-child { border-right: 0; }
.proof-item strong { display: block; color: #fff; font-family: 'Source Serif 4', Georgia, serif; font-size: clamp(1.35rem, 2.2vw, 2rem); }
.proof-item span { color: rgba(255,255,255,.66); font-size: .77rem; text-transform: uppercase; letter-spacing: .075em; }

.section-kicker { color: var(--accent-deep); font-size: .76rem; font-weight: 750; text-transform: uppercase; letter-spacing: .14em; }
.section-intro { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(28px, 7vw, 90px); margin-bottom: 46px; align-items: end; }
.section-intro h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.4rem); }
.section-intro p { margin: 0; font-size: 1.05rem; }

.pathway-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.pathway-card {
  position: relative; overflow: hidden; min-height: 330px; padding: clamp(28px, 4vw, 46px); border-radius: var(--radius-lg);
  border: 1px solid rgba(10,37,64,.08); background: #fff; box-shadow: 0 16px 50px rgba(10,37,64,.07);
}
.pathway-card::after { content: ""; position: absolute; width: 220px; height: 220px; border-radius: 50%; right: -90px; bottom: -110px; background: var(--accent-soft); }
.pathway-card.clay::after { background: var(--clay-soft); }
.pathway-card .pathway-num { font-family: 'Source Serif 4', Georgia, serif; color: var(--accent); font-size: 3.2rem; line-height: 1; }
.pathway-card.clay .pathway-num { color: var(--clay); }
.pathway-card h3 { font-size: clamp(1.6rem, 2.5vw, 2.25rem); margin: 18px 0 12px; }
.pathway-card p { max-width: 520px; }
.pathway-card .btn { margin-top: 12px; position: relative; z-index: 1; }

.network-proof { background: var(--paper); }
.network-proof-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(34px, 7vw, 82px); align-items: center; }
.network-proof-visual { padding: 26px; border-radius: 24px; background: #fff; border: 1px solid rgba(10,37,64,.08); box-shadow: 0 20px 60px rgba(10,37,64,.08); }
.network-proof-visual img { width: 100%; display: block; }
.network-statline { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin: 26px 0; }
.network-statline div { padding: 14px; background: #fff; border-left: 3px solid var(--accent); }
.network-statline strong { display: block; color: var(--navy); font-family: 'Source Serif 4', serif; font-size: 1.45rem; }
.network-statline span { font-size: .73rem; color: var(--grey-500); text-transform: uppercase; }

.human-band { background: var(--navy); color: #fff; }
.human-grid { display: grid; grid-template-columns: .95fr 1.05fr; min-height: 560px; }
.human-grid img { width: 100%; height: 100%; object-fit: cover; }
.human-copy { padding: clamp(44px, 7vw, 92px); align-self: center; }
.human-copy h2 { color: #fff; font-size: clamp(2rem, 4vw, 3.4rem); }
.human-copy p { color: rgba(255,255,255,.72); max-width: 600px; }
.human-copy .section-kicker { color: #79d4d9; }

.page-hero {
  position: relative; overflow: hidden; padding: clamp(58px, 7vw, 88px) 0 clamp(50px, 6vw, 76px);
  background: linear-gradient(120deg, #f4f9f8, #fff 62%, #f9f1ed);
}
.page-hero::after {
  content: ""; position: absolute; width: 320px; height: 320px; right: 5vw; top: -190px; border: 1px solid rgba(2,149,162,.2); border-radius: 50%; box-shadow: 0 0 0 50px rgba(2,149,162,.04), 0 0 0 100px rgba(2,149,162,.025);
}
.page-hero .kicker { color: var(--accent-deep); }
.page-hero h1 { font-size: clamp(2.3rem, 5vw, 4.35rem); max-width: 900px; }
.pill { border-color: rgba(2,149,162,.25); background: rgba(255,255,255,.8); }
.pill.building::before { background: var(--clay); }
.breadcrumb { color: #607581; }

.content { padding: clamp(62px, 8vw, 100px) 0; }
.content-grid { grid-template-columns: minmax(0, 1fr) 340px; gap: clamp(44px, 7vw, 86px); }
.prose h2 { margin-top: 48px; position: relative; }
.prose h2:first-of-type { margin-top: 16px; }
.prose h2::before { content: ""; display: block; width: 42px; height: 3px; background: var(--accent); margin-bottom: 16px; border-radius: 99px; }
.prose .lead { font-family: 'Source Serif 4', Georgia, serif; font-size: clamp(1.24rem, 2vw, 1.55rem); line-height: 1.55; color: var(--navy); }
.side-card { border-color: rgba(10,37,64,.08); background: #f7faf9; border-radius: 16px; box-shadow: 0 12px 35px rgba(10,37,64,.045); }
.cards { gap: 20px; }
.cards .card { border-color: rgba(10,37,64,.08); border-radius: 16px; padding: 26px; box-shadow: 0 10px 30px rgba(10,37,64,.035); }
.figure img, .figure svg { border-radius: 18px; border-color: rgba(10,37,64,.08); padding: 8px; }
.wip { border-color: rgba(182,95,72,.24); background: var(--clay-soft); color: #6a463c; border-radius: 12px; }
.cta-strip { background: linear-gradient(120deg, var(--accent-soft), #fff 55%, var(--clay-soft)); padding: 64px 0; }
.cta-strip h3 { font-size: clamp(1.65rem, 3vw, 2.3rem); }

.award { background: var(--paper); }
.award-photo { width: 230px; height: 230px; border-radius: 22px; }
.about-portrait { border-radius: 22px; }
.portrait-photo { width: 150px; height: 150px; box-shadow: 0 12px 35px rgba(10,37,64,.18); }
.proj-card { border-radius: 18px; padding: 30px; }
.proj-card h4, h4, .pubs .area, .post-card .meta .tag { color: var(--accent-deep); }
.proj-card:hover, .post-card:hover { border-color: var(--accent); }
.proj-card .status .arrow, .pubs .doi, .post-card .more { color: var(--accent-deep); }

.lt { background: linear-gradient(135deg, var(--navy-deep), var(--navy) 62%, #073f50); }
.lt::before { background: radial-gradient(circle at 60% 50%, rgba(2,149,162,.28), transparent 60%); }
.lt h4, .lt-vis .k { color: #78d7dc; }
.contact .btn-primary { background: var(--accent); }
.contact .btn-primary:hover { background: #fff; }
footer { background: #061b2a; padding-top: 58px; }

.photo-wide { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 22px; box-shadow: 0 18px 55px rgba(10,37,64,.14); }
.visual-note { font-size: .78rem; color: var(--grey-500); margin-top: 10px; }
.cycle-legend { list-style: none !important; margin: 16px 0 34px !important; display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.cycle-legend li { margin: 0 !important; padding: 12px 9px !important; border-top: 2px solid var(--accent); background: var(--accent-soft); text-align: center; border-radius: 8px; font-size: .78rem !important; color: var(--navy) !important; }
.cycle-legend li:last-child { border-color: var(--clay); background: var(--clay-soft); }
.contact-routes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin: 28px 0; }
.contact-route { padding: 30px; border: 1px solid rgba(10,37,64,.08); border-radius: 18px; background: #fff; box-shadow: 0 14px 40px rgba(10,37,64,.055); }
.contact-route .route-label { display: inline-block; margin-bottom: 14px; color: var(--accent-deep); font-size: .74rem; font-weight: 750; text-transform: uppercase; letter-spacing: .12em; }
.contact-route h3 { font-size: 1.4rem; }
.contact-route.clay .route-label { color: var(--clay); }
.feature-visual { margin: 34px 0 44px; padding: 22px; border-radius: 22px; background: var(--paper); border: 1px solid rgba(10,37,64,.07); }
.feature-visual img { width: 100%; display: block; border-radius: 14px; }
.near-list { min-width: 0; max-width: 100%; grid-template-columns: minmax(0, 1fr); }
.near-list h3, .near-row, .near-row .nr-name { min-width: 0; max-width: 100%; overflow-wrap: anywhere; }

@media (max-width: 980px) {
  .nav-desktop { display: none; }
  .nav-inner { flex-wrap: wrap; }
  .nav-mobile { display: block; width: 100%; }
  .nav-toggle { display: none; }
  .mobile-panel, .mobile-panel[hidden] {
    position: static; width: 100%; display: grid; grid-template-columns: repeat(3, minmax(0,1fr));
    margin-top: 10px; padding: 10px 0 0; border: 0; border-top: 1px solid rgba(10,37,64,.08);
    border-radius: 0; box-shadow: none; background: transparent;
  }
  .mobile-panel a { padding: 9px 10px; text-align: center; }
  .mobile-panel .nav-cta { margin-top: 0; }
  .hero-grid, .network-proof-grid, .human-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 440px; max-width: 680px; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-item:nth-child(2) { border-right: 0; }
  .proof-item:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.1); }
  .section-intro { grid-template-columns: 1fr; gap: 16px; }
  .human-grid img { max-height: 560px; }
  .content-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav-inner { min-height: 66px; }
  .mobile-panel, .mobile-panel[hidden] { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .brand img { height: 31px; }
  .lang-switch { top: 84px; }
  .hero h1 { font-size: clamp(2.55rem, 13vw, 3.8rem); }
  .hero-visual { min-height: 365px; }
  .hero-photo { inset: 0 0 42px 30px; width: calc(100% - 30px); height: calc(100% - 42px); }
  .hero-network-card { width: 82%; padding: 14px; }
  .pathway-grid { grid-template-columns: 1fr; }
  .pathway-card { min-height: 0; }
  .proof-grid { grid-template-columns: 1fr 1fr; }
  .proof-item { padding: 21px 16px; }
  .proof-item strong { font-size: 1.3rem; }
  .network-statline { grid-template-columns: 1fr; }
  .human-copy { padding: 44px 24px 54px; }
  .cycle-legend { grid-template-columns: 1fr 1fr; }
  .contact-routes { grid-template-columns: 1fr; }
  .near-row { flex-wrap: wrap; }
  .near-row .nr-status { margin-left: auto; }
  .near-row .nr-dist { display: none; }
  .page-hero::after { right: -180px; }
  .foot-grid { grid-template-columns: 1fr; }
  .nav-links a:not(.nav-cta) { display: initial; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* ============================================================
   COLLABORATE (homepage hook · page · per-project blocks)
   ============================================================ */

/* Homepage hook strip */
.collab-hook { background: linear-gradient(100deg, var(--accent-soft) 0%, #ffffff 62%); border-top: 3px solid var(--accent); border-bottom: 1px solid var(--grey-100); padding: 32px 0; }
.collab-hook-grid { display: flex; align-items: center; justify-content: space-between; gap: 26px; flex-wrap: wrap; }
.collab-hook-title { font-family: 'Source Serif 4', Georgia, serif; color: var(--navy); font-size: 1.28rem; font-weight: 600; line-height: 1.3; margin-bottom: 5px; }
.collab-hook-sub { color: var(--grey-600); font-size: .98rem; margin-bottom: 0; max-width: 700px; }
.collab-hook .btn { flex-shrink: 0; }

/* Collaborate page — doors and asks */
.collab-door { margin-bottom: 64px; }
.collab-door:last-of-type { margin-bottom: 40px; }
.door-head { display: flex; align-items: baseline; gap: 16px; border-bottom: 1px solid var(--grey-100); padding-bottom: 14px; margin-bottom: 30px; }
.door-num { font-family: 'Source Serif 4', Georgia, serif; font-size: .95rem; font-weight: 600; color: var(--accent-deep); text-transform: uppercase; letter-spacing: .12em; white-space: nowrap; }
.door-head h2 { margin-bottom: 0; }
.ask-card { border: 1px solid var(--grey-100); border-left: 4px solid var(--accent); border-radius: var(--radius); background: var(--grey-50); padding: 34px 38px; margin-bottom: 26px; }
.collab-door.clay .ask-card { border-left-color: var(--clay); }
.ask-card h3 { font-size: 1.35rem; margin-bottom: 14px; }
.ask-index { display: block; font-family: 'Inter', sans-serif; font-size: .74rem; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; color: var(--grey-500); margin-bottom: 8px; }
.ask-question { font-family: 'Source Serif 4', Georgia, serif; font-style: italic; font-size: 1.28rem; color: var(--navy); line-height: 1.35; border-top: 1px solid var(--grey-100); padding-top: 18px; margin: 22px 0 20px; }
.ask-question .q-label { display: block; font-family: 'Inter', sans-serif; font-style: normal; font-size: .74rem; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; color: var(--accent-deep); margin-bottom: 6px; }
.ask-note { font-size: .88rem; color: var(--grey-500); margin-bottom: 1rem; }
.collab-notes { border-top: 1px solid var(--grey-100); padding-top: 26px; }
.collab-notes p { font-size: .88rem; color: var(--grey-500); max-width: 760px; }

/* Per-project "What this needs now" block (pre-footer) */
.needs-now { padding: 0 0 84px; }
.needs-now-card { border: 1px solid rgba(2,149,162,.25); border-top: 4px solid var(--accent); border-radius: var(--radius-lg); background: linear-gradient(165deg, #ffffff 55%, var(--accent-soft) 140%); padding: 44px 48px; box-shadow: 0 14px 40px rgba(10,37,64,.06); }
.needs-now-head { display: flex; justify-content: space-between; align-items: baseline; gap: 18px; flex-wrap: wrap; margin-bottom: 16px; }
.needs-now-stage { font-size: .78rem; font-weight: 600; color: var(--grey-500); text-transform: uppercase; letter-spacing: .06em; }
.needs-now-question { font-family: 'Source Serif 4', Georgia, serif; font-style: italic; font-size: clamp(1.35rem, 2.6vw, 1.8rem); color: var(--navy); font-weight: 600; line-height: 1.3; margin-bottom: 12px; }
.needs-now-ask { max-width: 680px; margin-bottom: 24px; }

@media (max-width: 760px) {
  .ask-card { padding: 26px 22px; }
  .needs-now-card { padding: 30px 24px; }
  .door-head { flex-direction: column; gap: 4px; }
}

/* LiveTextbook case intake (Collaborate page, gated demo access) */
.case-form { border-top: 1px solid var(--grey-100); margin-top: 24px; padding-top: 22px; }
.case-form .cf-note { font-size: .88rem; color: var(--grey-500); max-width: 640px; }
.case-form label { display: block; font-size: .85rem; font-weight: 600; color: var(--navy); margin-bottom: 14px; }
.case-form input[type="email"], .case-form textarea { display: block; width: 100%; margin-top: 6px; padding: 10px 12px; border: 1px solid var(--grey-300); border-radius: 8px; font: inherit; font-size: .92rem; color: var(--ink); background: #fff; }
.case-form input[type="email"]:focus, .case-form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.case-form textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .85rem; line-height: 1.55; resize: vertical; }
.case-form .cf-consent { display: flex; gap: 9px; align-items: flex-start; font-weight: 500; color: var(--grey-600); font-size: .85rem; max-width: 640px; }
.case-form .cf-consent input { margin-top: 3px; flex-shrink: 0; }
.case-form button.btn { border: 1.5px solid transparent; margin-top: 6px; }
.cf-pending { border: 1px solid rgba(2,149,162,.35); background: var(--accent-soft); border-radius: 10px; padding: 18px 20px; font-size: .92rem; color: var(--ink); max-width: 640px; }
.cf-pending strong { display: block; color: var(--navy); margin-bottom: 6px; }