/* ===== IXRI Lab — Apple-Inspired Design v2 ===== */

/* --- Design Tokens --- */
:root {
  /* Brand */
  --navy: #050E3C;
  --blue: #002455;
  --red: #DC0000;
  --coral: #FF3838;
  --purple: #4A1942;
  --gradient: linear-gradient(90deg, #050E3C 0%, #002455 25%, #4A1942 50%, #FF3838 75%, #DC0000 100%);

  /* Apple-inspired palette */
  --text-primary: #1d1d1f;
  --text-secondary: #86868b;
  --text-tertiary: #6e6e73;
  --link: #0066cc;
  --link-dark: #2997ff;
  --bg-white: #fbfbfd;
  --bg-gray: #f5f5f7;
  --bg-black: #000000;
  --border: #d2d2d7;
}

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  /* Anchor links land below the fixed nav */
  scroll-padding-top: 56px;
}
/* Pages with a sticky sub-nav or filter toolbar need extra space. */
html:has(.subnav), html:has(.pub-toolbar) { scroll-padding-top: 96px; }
@media (max-width: 734px) {
  html:has(.subnav), html:has(.pub-toolbar) { scroll-padding-top: 104px; }
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display', 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif;
  color: var(--text-primary);
  line-height: 1.47;
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 17px;
  /* Avoid the iOS tap flash; we provide our own active states. */
  -webkit-tap-highlight-color: transparent;
}
a { color: var(--link); text-decoration: none; }
@media (hover: hover) and (pointer: fine) {
  a:hover { text-decoration: underline; }
}
img { max-width: 100%; height: auto; display: block; }

/* --- Layout --- */
.container { max-width: 980px; margin: 0 auto; padding: 0 22px; }
.container-wide { max-width: 1120px; margin: 0 auto; padding: 0 22px; }

/* =========================================
   NAVIGATION — Apple 44px translucent
   ========================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 44px;
  /* Fallback solid background — backdrop-filter applied only when supported
     and on devices where it's cheap. */
  background: rgba(251,251,253,0.92);
  transition: background 0.3s cubic-bezier(0.32,0.08,0.24,1);
  padding-top: env(safe-area-inset-top);
  height: calc(44px + env(safe-area-inset-top));
}
@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  @media (hover: hover) and (pointer: fine) {
    /* Only enable expensive blur on desktop-class devices. */
    .nav {
      background: rgba(251,251,253,0.72);
      backdrop-filter: saturate(180%) blur(20px);
      -webkit-backdrop-filter: saturate(180%) blur(20px);
    }
    .nav.scrolled { background: rgba(251,251,253,0.92); }
  }
}
.nav.scrolled { background: rgba(251,251,253,0.96); }
.nav-inner {
  max-width: 1024px; margin: 0 auto; padding: 0 22px;
  display: flex; align-items: center; justify-content: space-between;
  height: 44px;
}
.nav-logo { display: flex; align-items: center; }
.nav-lockup { height: 20px; width: auto; }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
  font-size: 12px; font-weight: 400; color: var(--text-primary);
  opacity: 0.72; transition: opacity 0.2s; text-decoration: none;
  padding: 6px 2px; /* larger touch target */
}
@media (hover: hover) and (pointer: fine) {
  .nav-links a:hover { opacity: 1; text-decoration: none; }
}
.nav-links a.active,
.nav-links a.is-active { opacity: 1; }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  padding: 10px; /* larger touch target */
  -webkit-tap-highlight-color: transparent;
}
.nav-toggle span { display: block; width: 17px; height: 1px; background: #1d1d1f; margin: 5px 0; transition: transform 0.25s, opacity 0.25s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* =========================================
   HERO — Full-viewport, centered
   The hero is locked at 100svh on every breakpoint so the white area
   never resizes mid-animation. The animation centers initially because
   #heroH1 and .hero-content start collapsed (grid-template-rows: 0fr)
   and only the logo animation occupies layout. When their .visible
   class is added, both expand smoothly in one coordinated transition.
   ========================================= */
.hero {
  min-height: 88vh;        /* fallback */
  min-height: 88svh;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-white);
  padding-top: calc(44px + env(safe-area-inset-top));
  padding-bottom: env(safe-area-inset-bottom);
  overflow: hidden;
}
.hero .container,
.hero .hero-stack {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center;
  text-align: center; width: 100%;
}

/* Logo + heading stack inside the hero. Always column so the H1 sits
   below the (compacted) logo at the end. */
.hero-intro {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  width: 100%;
}
.logo-anim-container {
  width: 380px; flex-shrink: 0;
  margin: 0 auto;
}
.logo-anim-container.compact { width: 96px; }
#animSvg { width: 100%; display: block; }

/* H1 — pre-rendered in DOM but collapsed via grid-template-rows trick.
   Uses 0fr → 1fr transition so it grows to its natural content height
   smoothly, no max-height guesswork. */
#heroH1 {
  display: grid;
  grid-template-rows: 0fr;
  margin: 0;
  width: 100%;
  font-size: 56px; font-weight: 700; line-height: 1.05;
  letter-spacing: -0.015em;
  text-align: center;
  background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
  transform: translateY(8px);
  transition: grid-template-rows 0.7s cubic-bezier(0.32, 0.08, 0.24, 1),
              margin-top         0.7s cubic-bezier(0.32, 0.08, 0.24, 1),
              opacity            0.55s cubic-bezier(0.32, 0.08, 0.24, 1) 0.1s,
              transform          0.55s cubic-bezier(0.32, 0.08, 0.24, 1) 0.1s;
}
#heroH1 .hero-h1-inner {
  overflow: hidden;
  min-height: 0;
  display: block;
}
#heroH1.visible {
  grid-template-rows: 1fr;
  margin-top: 18px;
  opacity: 1;
  transform: translateY(0);
}

/* Hero content (subtitle + description + actions) — same collapse
   trick. Reveals together with the H1 as one growth. */
.hero-content {
  display: grid;
  grid-template-rows: 0fr;
  width: 100%;
  margin: 0;
  opacity: 0;
  transform: translateY(12px);
  transition: grid-template-rows 0.7s cubic-bezier(0.32, 0.08, 0.24, 1),
              margin-top         0.7s cubic-bezier(0.32, 0.08, 0.24, 1),
              opacity            0.55s cubic-bezier(0.32, 0.08, 0.24, 1) 0.1s,
              transform          0.55s cubic-bezier(0.32, 0.08, 0.24, 1) 0.1s;
}
.hero-content > .hero-content-inner {
  overflow: hidden;
  min-height: 0;
}
.hero-content.visible {
  grid-template-rows: 1fr;
  margin-top: 24px;
  opacity: 1;
  transform: translateY(0);
}

.hero-sub {
  font-size: 17px; color: var(--text-secondary); font-weight: 400;
  margin-bottom: 8px;
}
.hero-desc {
  font-size: 21px; color: var(--text-secondary); font-weight: 400;
  max-width: 500px; margin: 0 auto 20px; line-height: 1.381;
}
.hero-actions { display: flex; gap: 28px; justify-content: center; }
.hero-actions a {
  font-size: 21px; font-weight: 400; color: var(--link);
  text-decoration: none;
}
@media (hover: hover) and (pointer: fine) {
  .hero-actions a:hover { text-decoration: underline; }
}
.hero-actions a::after { content: " >"; font-weight: 300; }

/* =========================================
   SECTIONS — Full-viewport cinematic blocks
   ========================================= */
.section-block {
  padding: 88px 0;
  overflow: hidden;
  scroll-margin-top: 56px;
}
/* Removed forced 90svh min-height — sections are now sized by their
   content + padding, so short sections (Join CTA) don't stretch to fill
   nearly a whole viewport. */
.section-block-hero {
  display: flex; align-items: center; justify-content: center;
}
.section, .page-header { scroll-margin-top: 56px; }
.section-light { background: var(--bg-white); }
.section-gray { background: var(--bg-gray); }
.section-dark { background: var(--bg-black); color: #f5f5f7; }
/* The Join CTA has only a short heading + sentence + button, so give it
   a smaller padding than the project showcases. */
.section-gradient.section-block { padding: 72px 0; }
.section-dark a { color: var(--link-dark); }
.section-gradient { background: var(--gradient); color: #fff; }
.section-gradient a { color: rgba(255,255,255,0.9); }

/* =========================================
   PROJECT SHOWCASE — Apple product style
   ========================================= */
.showcase {
  text-align: center; max-width: 820px;
  margin: 0 auto; padding: 0 22px;
}
.showcase-eyebrow {
  font-size: 21px; font-weight: 600;
  margin-bottom: 0; line-height: 1.2381;
}
.showcase-title {
  font-size: 56px; font-weight: 700;
  line-height: 1.07; letter-spacing: -0.015em;
  margin-top: 0; margin-bottom: 16px;
}
.section-dark .showcase-title { color: #f5f5f7; }
.showcase-desc {
  font-size: 21px; font-weight: 400; line-height: 1.381;
  color: var(--text-secondary); max-width: 580px;
  margin: 0 auto 16px;
}
.section-dark .showcase-desc { color: #86868b; }
.showcase-links {
  display: flex; gap: 28px; justify-content: center;
  margin-bottom: 56px;
}
.showcase-links a {
  font-size: 21px; font-weight: 400;
  text-decoration: none;
}
@media (hover: hover) and (pointer: fine) {
  .showcase-links a:hover { text-decoration: underline; }
}
.showcase-links a::after { content: " >"; font-weight: 300; }
.showcase-img {
  width: 100%; max-width: 680px; margin: 0 auto;
  border-radius: 20px; overflow: hidden;
}
.showcase-img img { width: 100%; display: block; }

/* =========================================
   JOIN SECTION
   ========================================= */
.join-inner {
  text-align: center; padding: 0 22px;
}
.join-inner h2 {
  font-size: 56px; font-weight: 700; line-height: 1.07;
  letter-spacing: -0.015em; margin-bottom: 16px;
  color: #fff;
}
.join-inner p {
  font-size: 21px; color: rgba(255,255,255,0.64);
  max-width: 500px; margin: 0 auto 36px;
  line-height: 1.381;
}
/* Combined motto + Join section — gradient background, white text */
.join-motto {
  font-size: 28px; font-weight: 700;
  letter-spacing: -0.005em;
  color: #fff;
  margin-bottom: 10px;
  line-height: 1.2;
}
.join-motto-sub {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  max-width: 480px; margin: 0 auto 44px;
  line-height: 1.5;
}
@media (max-width: 734px) {
  .join-motto { font-size: 22px; }
  .join-motto-sub { font-size: 15px; margin-bottom: 36px; }
}

.btn-pill {
  display: inline-block; padding: 12px 28px;
  border-radius: 980px; font-size: 17px; font-weight: 400;
  background: #fff; color: var(--text-primary);
  text-decoration: none; transition: background 0.25s, transform 0.15s;
}
@media (hover: hover) and (pointer: fine) {
  .btn-pill:hover { background: #e8e8ed; text-decoration: none; }
}
.btn-pill:active { transform: scale(0.97); background: #e8e8ed; }
.section-gradient .btn-pill { color: var(--text-primary); }
.section-dark .btn-pill { color: var(--text-primary); }

/* =========================================
   SCROLL ANIMATION — short, GPU-friendly
   ========================================= */
.fade-in {
  opacity: 0; transform: translate3d(0, 14px, 0);
  transition: opacity 0.55s cubic-bezier(0.32,0.08,0.24,1),
              transform 0.55s cubic-bezier(0.32,0.08,0.24,1);
}
.fade-in.visible { opacity: 1; transform: translate3d(0, 0, 0); }
.fade-in-d1 { transition-delay: 0.08s; }
.fade-in-d2 { transition-delay: 0.16s; }
.fade-in-d3 { transition-delay: 0.24s; }
.fade-in-scale {
  opacity: 0; transform: scale(0.97) translate3d(0, 10px, 0);
  transition: opacity 0.6s cubic-bezier(0.32,0.08,0.24,1),
              transform 0.6s cubic-bezier(0.32,0.08,0.24,1);
}
.fade-in-scale.visible { opacity: 1; transform: scale(1) translate3d(0, 0, 0); }

/* Reduced motion: skip transforms entirely; show content immediately. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .fade-in, .fade-in-scale {
    opacity: 1 !important;
    transform: none !important;
  }
  #heroH1 { opacity: 1 !important; transform: none !important; }
  .hero-content { opacity: 1 !important; transform: none !important; }
}

/* =========================================
   NEWS TICKER — Horizontal scroll cards
   ========================================= */
.news-ticker {
  padding: 48px 0 56px;
  background: var(--bg-gray);
  overflow: hidden;
  scroll-margin-top: 56px;
}
.news-ticker-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.news-ticker-title {
  font-size: 24px; font-weight: 700; color: var(--text-primary);
  letter-spacing: -0.005em;
}
.news-ticker-track {
  display: flex; gap: 16px;
  /* Horizontal-only scroller: lock gestures to horizontal pan, kill any
     vertical overflow, and prevent overscroll from chaining to the page. */
  overflow-x: auto;
  overflow-y: hidden;
  touch-action: pan-x;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 0 22px 8px;
  margin: 0 -22px;
  scrollbar-width: none;
  scroll-padding-left: 22px;
}
.news-ticker-track::-webkit-scrollbar { display: none; }
.news-card {
  flex: 0 0 280px; min-width: 280px;
  scroll-snap-align: start;
  background: #fff; border-radius: 16px;
  padding: 24px; text-decoration: none; color: inherit;
  transition: transform 0.25s cubic-bezier(0.32,0.08,0.24,1),
              box-shadow 0.3s ease;
  display: flex; flex-direction: column; gap: 4px;
}
@media (hover: hover) and (pointer: fine) {
  .news-card:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    text-decoration: none;
  }
}
.news-card:active { transform: scale(0.99); }
.news-card-date {
  font-size: 12px; font-weight: 500; color: var(--text-secondary);
}
.news-card-badge {
  display: inline-block; align-self: flex-start;
  font-size: 11px; font-weight: 600;
  color: var(--coral); background: rgba(220,0,0,0.06);
  padding: 2px 8px; border-radius: 4px;
  margin: 2px 0;
}
.news-card-title {
  font-size: 17px; font-weight: 700; color: var(--text-primary);
  line-height: 1.25; margin: 4px 0;
}
.news-card-desc {
  font-size: 13px; color: var(--text-secondary);
  line-height: 1.5; margin: 0;
}

/* =========================================
   FOOTER — Apple-style compact
   ========================================= */
.footer {
  background: var(--bg-gray); color: var(--text-secondary);
  padding: 18px 0 12px;
  font-size: 12px; line-height: 1.33;
}
.footer a { color: var(--link); font-size: 12px; }
@media (hover: hover) and (pointer: fine) {
  .footer a:hover { text-decoration: underline; }
}
.footer h4, .footer-heading {
  color: var(--text-primary); font-size: 12px;
  font-weight: 600; margin-bottom: 8px;
}
.footer p { margin-bottom: 3px; }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 24px; padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.footer-logo {
  display: flex; align-items: center; gap: 6px;
  font-weight: 600; font-size: 13px;
  color: var(--text-primary); margin-bottom: 6px;
}
.footer-tagline { font-size: 12px; line-height: 1.6; }
.footer-bottom {
  padding-top: 12px; text-align: center;
  font-size: 12px; color: var(--text-tertiary);
}

/* =========================================
   SUB-PAGES — Shared styles
   ========================================= */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-gray); }
.section-title {
  font-size: 32px; font-weight: 700; color: var(--text-primary);
  text-align: center; margin-bottom: 48px;
  letter-spacing: -0.005em;
}
.section-dark .section-title { color: #f5f5f7; }

/* Page header — Apple cinematic */
.page-header {
  padding: 140px 0 60px; background: var(--bg-white);
  text-align: center;
}
.page-header h1 {
  font-size: 56px; font-weight: 700;
  color: var(--text-primary); letter-spacing: -0.015em;
  line-height: 1.07;
}
.page-header p {
  font-size: 21px; color: var(--text-secondary);
  margin-top: 12px; line-height: 1.381;
}
.page-header a { color: var(--link); }

/* Research areas */
.areas-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.area-card {
  background: #fff; border: none;
  border-radius: 20px; padding: 36px;
  text-align: center;
  transition: transform 0.4s cubic-bezier(0.32,0.08,0.24,1);
}
@media (hover: hover) and (pointer: fine) {
  .area-card:hover { transform: scale(1.02); }
}
.area-icon { color: var(--red); margin-bottom: 16px; }
.area-card h3 { font-size: 17px; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.area-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.58; }

/* --- Project Showcase (research page, cinematic single-column) --- */
.project-showcase {
  text-align: center;
  max-width: 680px; margin: 0 auto; padding: 0 22px;
}
.project-showcase .showcase-eyebrow {
  font-size: 17px; font-weight: 600; margin-bottom: 0;
}
.project-showcase .showcase-title {
  font-size: 48px; font-weight: 700; line-height: 1.07;
  letter-spacing: -0.015em; margin-top: 0; margin-bottom: 20px;
}
.project-showcase .showcase-hero-img {
  width: 100%; max-width: 680px; margin: 0 auto 48px;
  border-radius: 20px; overflow: hidden;
}
.project-showcase .showcase-hero-img img { width: 100%; display: block; }
.project-showcase .project-prose {
  text-align: left; max-width: 680px; margin: 0 auto;
}
.project-prose h3 {
  font-size: 24px; font-weight: 700; margin-bottom: 10px;
  letter-spacing: -0.005em;
}
.section-dark .project-prose h3 { color: #f5f5f7; }
.project-prose h3:not(:first-child) { margin-top: 40px; }
.project-prose p {
  font-size: 17px; line-height: 1.58;
  color: var(--text-secondary);
}
.section-dark .project-prose p { color: #86868b; }
.project-showcase .project-links {
  margin-top: 28px; display: flex; gap: 20px;
  justify-content: center; flex-wrap: wrap;
}
.project-links a {
  font-size: 17px; font-weight: 400; color: var(--link);
  text-decoration: none;
}
@media (hover: hover) and (pointer: fine) {
  .project-links a:hover { text-decoration: underline; }
}
.project-links a::after { content: " >"; font-weight: 300; }
.section-dark .project-links a { color: var(--link-dark); }

/* Project key concept cards — 3-up grid summarising each project */
.project-keys {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 8px;
  text-align: left;
}
.project-key-card {
  border-radius: 20px;
  padding: 26px 24px;
}
.section-light .project-key-card { background: var(--bg-gray); }
.section-dark  .project-key-card { background: #1d1d1f; }
.project-key-card h3 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.section-dark .project-key-card h3 { color: #f5f5f7; }
.project-key-card p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
  margin: 0;
}
.section-dark .project-key-card p { color: #86868b; }
@media (max-width: 734px) {
  .project-keys { grid-template-columns: 1fr; gap: 10px; }
  .project-key-card { padding: 22px 20px; }
  .project-key-card h3 { font-size: 16px; }
  .project-key-card p { font-size: 13.5px; }
}

.partner-badge {
  font-size: 12px; font-weight: 500;
  color: var(--text-secondary); background: var(--bg-gray);
  padding: 4px 14px; border-radius: 980px;
  border: 1px solid var(--border);
}
.section-dark .partner-badge {
  color: #86868b; background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.15);
}

/* Values — dark variant */
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.value-card {
  text-align: center; padding: 36px;
  background: #1d1d1f; border-radius: 20px;
}
.value-card h3 { font-size: 21px; font-weight: 700; color: #f5f5f7; margin-bottom: 8px; }
.value-quote {
  font-size: 14px; font-style: italic; margin-bottom: 12px;
  color: #f5f5f7;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: #f5f5f7;
  background-clip: unset;
}
.value-card p:last-child { font-size: 14px; color: #86868b; }

/* Centered CTA row used after grids */
.cta-row { text-align: center; margin-top: 36px; }

/* Research network — collaboration cards */
.network-intro {
  text-align: center; max-width: 640px;
  margin: 0 auto 36px; color: var(--text-secondary);
  font-size: 15px; line-height: 1.7;
}
.network-grid {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 16px; max-width: 800px; margin: 0 auto;
}
.network-card {
  flex: 0 0 220px;
  background: var(--bg-gray); border-radius: 16px;
  padding: 28px 22px; text-align: center;
}
.network-card svg { color: var(--text-secondary); margin-bottom: 12px; }
.network-card h3 {
  font-size: 17px; font-weight: 700;
  color: var(--text-primary); margin-bottom: 4px;
}
.network-card p { font-size: 13px; color: var(--text-tertiary); margin: 0; }
@media (max-width: 480px) {
  .network-card { flex: 1 1 calc(50% - 16px); padding: 22px 14px; }
}

/* How We Work */
.work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.work-item { background: var(--bg-gray); border: none; border-radius: 20px; padding: 28px; }
.work-item h4, .work-item h3 { font-size: 17px; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.work-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.58; }

/* Members — centered vertical profile */
.member-profile {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; max-width: 600px; margin: 0 auto;
}
.member-photo {
  width: 160px; height: 160px; border-radius: 50%;
  overflow: hidden; background: var(--bg-gray); margin-bottom: 20px;
}
.member-photo img { width: 100%; height: 100%; object-fit: cover; }
.member-info { text-align: center; }
.member-info h3 { font-size: 28px; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.member-role { font-size: 17px; color: var(--coral); font-weight: 500; margin-bottom: 16px; display: block; }
.member-bio {
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.58; max-width: 540px; margin: 0 auto 20px;
}
.member-links { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; }
.member-links a {
  font-size: 14px; color: var(--link); text-decoration: none;
}
@media (hover: hover) and (pointer: fine) {
  .member-links a:hover { text-decoration: underline; }
}

/* =========================================
   SUB-NAV — sticky section jumper
   ========================================= */
.subnav {
  position: sticky;
  top: calc(44px + env(safe-area-inset-top));
  z-index: 20;
  background: rgba(251,251,253,0.92);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  @media (hover: hover) and (pointer: fine) {
    .subnav {
      background: rgba(251,251,253,0.78);
      backdrop-filter: saturate(180%) blur(16px);
      -webkit-backdrop-filter: saturate(180%) blur(16px);
    }
  }
}
.subnav-inner {
  display: flex; gap: 4px;
  padding-top: 8px; padding-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
}
.subnav-inner::-webkit-scrollbar { display: none; }
.subnav a {
  flex: 0 0 auto;
  padding: 6px 12px;
  border-radius: 980px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  white-space: nowrap;
  scroll-snap-align: start;
  transition: background 0.18s, color 0.18s;
}
@media (hover: hover) and (pointer: fine) {
  .subnav a:hover { color: var(--text-primary); text-decoration: none; }
}
.subnav a:active { transform: scale(0.97); }
.subnav a.is-active {
  background: var(--text-primary);
  color: #fff;
}
@media (max-width: 734px) {
  .subnav { top: calc(48px + env(safe-area-inset-top)); }
  .subnav-inner { padding-top: 6px; padding-bottom: 6px; }
  .subnav a { font-size: 13px; padding: 6px 11px; }
}

/* Publications — sticky filter toolbar */
.pub-toolbar {
  position: sticky;
  top: calc(44px + env(safe-area-inset-top));
  z-index: 20;
  background: rgba(251,251,253,0.92);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  @media (hover: hover) and (pointer: fine) {
    .pub-toolbar {
      background: rgba(251,251,253,0.78);
      backdrop-filter: saturate(180%) blur(16px);
      -webkit-backdrop-filter: saturate(180%) blur(16px);
    }
  }
}
.pub-toolbar-inner {
  display: flex; align-items: center; gap: 12px;
  padding-top: 10px; padding-bottom: 10px;
  flex-wrap: wrap;
}
.pub-search {
  display: flex; align-items: center;
  flex: 1 1 220px; min-width: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 980px;
  padding: 6px 10px 6px 12px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.pub-search:focus-within {
  border-color: var(--link);
  box-shadow: 0 0 0 3px rgba(0,102,204,0.15);
}
.pub-search-icon { color: var(--text-tertiary); flex: 0 0 auto; margin-right: 8px; }
.pub-search input {
  flex: 1 1 auto; min-width: 0;
  border: 0; outline: 0; background: transparent;
  font: inherit; color: var(--text-primary);
  font-size: 14px; padding: 4px 0;
}
.pub-search input::placeholder { color: var(--text-tertiary); }
.pub-clear {
  flex: 0 0 auto;
  background: var(--bg-gray); color: var(--text-secondary);
  border: 0; border-radius: 980px;
  font: inherit; font-size: 12px; font-weight: 500;
  padding: 4px 10px;
  cursor: pointer;
}
@media (hover: hover) and (pointer: fine) {
  .pub-clear:hover { background: #e5e5ea; color: var(--text-primary); }
}
.pub-clear:active { transform: scale(0.97); }

.pub-years {
  display: flex; gap: 6px;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  margin: 0 -22px;
  padding: 0 22px;
}
.pub-years::-webkit-scrollbar { display: none; }
.pub-chip {
  flex: 0 0 auto;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 980px;
  font: inherit; font-size: 13px; font-weight: 500;
  color: var(--text-secondary);
  padding: 5px 12px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
@media (hover: hover) and (pointer: fine) {
  .pub-chip:hover { color: var(--text-primary); border-color: var(--text-tertiary); }
}
.pub-chip:active { transform: scale(0.97); }
.pub-chip.is-active {
  background: var(--text-primary);
  color: #fff;
  border-color: var(--text-primary);
}

/* Reduce header padding when toolbar is present, to keep things tight on mobile */
.pub-section { padding-top: 24px; }
.pub-empty {
  text-align: center; padding: 48px 20px;
  color: var(--text-secondary);
}
.pub-empty p { font-size: 16px; }

@media (max-width: 734px) {
  .pub-toolbar { top: calc(48px + env(safe-area-inset-top)); }
  .pub-toolbar-inner {
    gap: 8px; padding-top: 8px; padding-bottom: 8px;
  }
  .pub-search { flex-basis: 100%; }
  .pub-years { width: 100%; }
  .pub-chip { font-size: 13px; padding: 5px 11px; }
  .pub-section { padding-top: 16px; }
}

/* Publications — centered narrow column */
.pub-container { max-width: 720px; margin: 0 auto; }
.pub-list { list-style: none; }
.pub-item { padding: 24px 0; border-bottom: 1px solid var(--border); scroll-margin-top: 76px; }
.pub-item:last-child { border-bottom: none; }
/* Award papers — same layout as regular pub-item. A small trophy icon
   is placed before the title (see .pub-award-icon below) so the
   distinction is subtle but visible. */
.pub-award-icon {
  display: inline-block;
  width: 15px; height: 15px;
  margin-right: 6px;
  vertical-align: -2px;
  color: #b45309;
  flex-shrink: 0;
}
.pub-title-text { font-size: 15px; font-weight: 600; color: var(--text-primary); display: block; margin-bottom: 6px; line-height: 1.4; }
/* When title is a clickable link to the paper, keep the same visual
   weight as a regular title but underline on hover only. */
a.pub-title-text { text-decoration: none; cursor: pointer; }
@media (hover: hover) and (pointer: fine) {
  a.pub-title-text:hover { color: var(--link); }
}
.pub-venue { font-size: 13px; color: var(--coral); font-weight: 500; display: block; margin-bottom: 4px; }
.pub-award-badge { font-size: 11px; font-weight: 600; color: #b45309; background: #fef3c7; padding: 2px 8px; border-radius: 4px; }
.pub-authors { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }
.pub-authors strong { color: var(--text-primary); font-weight: 600; }
.pub-links { margin-top: 6px; display: flex; gap: 14px; }
.pub-links a { font-size: 12px; color: var(--link); text-decoration: none; }
@media (hover: hover) and (pointer: fine) {
  .pub-links a:hover { text-decoration: underline; }
}
.pub-teaser {
  width: 100%;
  background: #fff; border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden;
  margin-bottom: 10px;
  padding: 12px;
}
.pub-teaser img {
  width: 100%; height: auto;
  display: block;
}
.pub-year-header {
  font-size: 28px; font-weight: 700; color: var(--text-primary);
  margin: 56px 0 20px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.pub-year-header:first-child { margin-top: 0; }
.pub-container { padding-top: 0; }

/* Placeholder */
.news-placeholder { text-align: center; padding: 60px 20px; color: var(--text-secondary); }
.news-placeholder h3 { font-size: 21px; font-weight: 600; color: var(--text-primary); margin: 16px 0 8px; }
.news-placeholder p { font-size: 17px; max-width: 480px; margin: 0 auto; }
.placeholder-icon { margin-bottom: 8px; }


/* Brand page */
.brand-section { margin-bottom: 48px; }
.brand-section h3 { font-size: 21px; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; }
.download-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.download-card { background: var(--bg-gray); border: none; border-radius: 20px; padding: 24px; text-align: center; }
.download-preview {
  min-height: 100px; display: flex; align-items: center;
  justify-content: center; border-radius: 12px; margin-bottom: 12px; padding: 16px;
}
.download-preview.on-white { background: #fff; border: 1px solid var(--border); }
.download-preview.on-dark { background: var(--bg-black); }
.download-preview.on-gray { background: #e2e8f0; }
.download-card h4 { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.download-links { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.download-links a { font-size: 12px; color: var(--link); text-decoration: none; }
@media (hover: hover) and (pointer: fine) {
  .download-links a:hover { text-decoration: underline; }
}
.color-palette { display: flex; gap: 12px; flex-wrap: wrap; }
.color-chip { width: 120px; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
.color-chip-swatch { height: 60px; }
.color-chip-info { padding: 8px; font-size: 12px; }
.color-chip-info strong { display: block; font-size: 12px; color: var(--text-primary); }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.spec-table th, .spec-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.spec-table th { background: var(--bg-gray); font-weight: 600; color: var(--text-primary); }

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 1068px) {
  .showcase-title, .project-showcase .showcase-title { font-size: 40px; }
  #heroH1 { font-size: 48px; }
  .join-inner h2 { font-size: 48px; }
  .page-header h1 { font-size: 48px; }
}

@media (max-width: 734px) {
  body { font-size: 15px; }
  html { scroll-padding-top: 60px; }
  .nav {
    height: calc(48px + env(safe-area-inset-top));
    padding-top: env(safe-area-inset-top);
  }
  .nav-inner {
    height: 48px;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  .nav-links {
    display: none; position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(251,251,253,0.98);
    flex-direction: column; padding: 18px 22px 22px;
    gap: 4px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    font-size: 17px; font-weight: 500;
    padding: 12px 4px; opacity: 1;
  }
  .nav-toggle { display: block; }

  /* Hero — slightly less than full viewport so the next section peeks
     into view, signalling there's more to scroll. */
  .hero {
    min-height: 85vh;
    min-height: 85svh;
    padding-top: calc(48px + env(safe-area-inset-top));
    padding-bottom: env(safe-area-inset-bottom);
  }
  .logo-anim-container { width: 100%; max-width: 240px; }
  .logo-anim-container.compact { width: 56px; }
  #heroH1 {
    font-size: 30px; text-align: center;
    line-height: 1.12; letter-spacing: -0.01em;
  }
  #heroH1.visible { margin-top: 14px; }
  .hero-content.visible { margin-top: 18px; }
  #animSvg { max-height: 26vh; }
  .hero-desc { font-size: 17px; max-width: 360px; }
  .hero-actions { gap: 24px; }
  .hero-actions a { font-size: 17px; padding: 6px 0; }

  .section-block { padding: 56px 0; }
  .section-gradient.section-block { padding: 48px 0; }
  .section-block-hero { min-height: auto; }
  .showcase-title { font-size: 30px; }
  .showcase-desc { font-size: 16px; }
  .showcase-eyebrow { font-size: 15px; }
  .showcase-links { margin-bottom: 32px; gap: 24px; }
  .showcase-links a { font-size: 16px; padding: 6px 0; }
  .showcase-img { max-width: 100%; }

  .join-inner h2 { font-size: 32px; }
  .join-inner p { font-size: 17px; }

  .news-card { flex: 0 0 78%; max-width: 320px; }

  /* Subpage responsive */
  .page-header { padding: calc(60px + env(safe-area-inset-top)) 0 28px; }
  .page-header h1 { font-size: 32px; }
  .page-header p { font-size: 16px; }
  .section { padding: 48px 0; }
  .section-title { font-size: 26px; margin-bottom: 32px; }

  .areas-grid, .values-grid { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
  .project-showcase .showcase-title { font-size: 28px; }
  .project-prose h3 { font-size: 19px; }
  .project-prose p { font-size: 15px; }

  .member-photo { width: 120px; height: 120px; }
  .member-info h3 { font-size: 24px; }

  .pub-year-header { font-size: 22px; margin: 36px 0 14px; }
  .pub-item { padding: 20px 0; }
  .pub-teaser { padding: 10px; border-radius: 12px; }

  .footer { padding-bottom: calc(12px + env(safe-area-inset-bottom)); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .page-header h1 { font-size: 28px; }
}