/* ================================================================
   ChordexBio Design System — assets/css/main.css
   Aesthetic: Editorial scientific · Light pages, dark hero sections
   Brand: #8b459f purple · #dd5789 pink · #fedc2a gold
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Serif:ital,wght@0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ── Tokens ─────────────────────────────────────────────────── */
:root {
  /* Brand */
  --c-purple:     #8b459f;
  --c-pink:       #dd5789;
  --c-gold:       #fedc2a;
  --c-purple-dk:  #6e3580;
  --c-pink-dk:    #b3406d;

  /* Light surfaces (default) */
  --c-bg:         #faf8f3;        /* parchment */
  --c-bg-2:       #f3efe6;        /* warm muted */
  --c-bg-3:       #ebe6d9;        /* deeper paper */
  --c-bg-card:    #ffffff;
  --c-border:     rgba(46, 38, 65, .12);
  --c-border-lt:  rgba(46, 38, 65, .07);
  --c-border-strong: rgba(46, 38, 65, .22);

  /* Ink text */
  --c-text:       #1d1830;        /* deep ink */
  --c-text-muted: #54506a;
  --c-text-dim:   #8a8499;

  /* Dark surfaces (for hero / CTA sections) */
  --c-dark:       #10131a;
  --c-dark-2:     #161a25;
  --c-dark-3:     #1f2433;
  --c-dark-text:  #ece9f5;
  --c-dark-muted: #9a95b3;
  --c-dark-dim:   #5e5a78;
  --c-purple-lt:  #b576c8;        /* used on dark backgrounds */
  --c-pink-lt:    #f07098;

  /* Gradients */
  --grad-hero:    linear-gradient(135deg, #8b459f 0%, #dd5789 55%, #fedc2a 100%);
  --grad-subtle:  linear-gradient(135deg, rgba(139,69,159,.08) 0%, rgba(221,87,137,.05) 100%);
  --grad-card:    linear-gradient(160deg, rgba(139,69,159,.05) 0%, rgba(221,87,137,.03) 100%);

  /* Type */
  --ff-display:  'IBM Plex Serif', Georgia, serif;
  --ff-body:     'Inter', system-ui, -apple-system, sans-serif;
  --ff-mono:     'IBM Plex Mono', ui-monospace, monospace;

  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   14px;
  --radius-xl:   20px;

  --shadow-sm:    0 1px 2px rgba(29,24,48,.05);
  --shadow-card:  0 2px 12px rgba(29,24,48,.06), 0 8px 32px rgba(29,24,48,.04);
  --shadow-lift:  0 8px 28px rgba(29,24,48,.08), 0 16px 56px rgba(29,24,48,.06);
  --shadow-glow:  0 0 0 1px rgba(139,69,159,.15), 0 8px 32px rgba(139,69,159,.18);

  --nav-h:        72px;
  --max-w:        1240px;
  --col-gap:      clamp(16px, 2.4vw, 28px);

  --ease-out:     cubic-bezier(.22,1,.36,1);
  --ease-in-out:  cubic-bezier(.65,0,.35,1);
  --banner-h: 0px;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--ff-body);
  font-size: 16px;
  font-feature-settings: "ss01", "cv11";
  line-height: 1.65;
  color: var(--c-text);
  background: var(--c-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, video, svg { display: block; max-width: 100%; }
a { color: var(--c-purple); text-decoration: none; transition: color .2s; }
a:hover { color: var(--c-pink); }
button, input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }
ul { list-style: none; }
::selection { background: rgba(139,69,159,.18); color: var(--c-text); }

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  width: min(var(--max-w), 100%);
  padding-inline: clamp(20px, 5vw, 56px);
  margin-inline: auto;
}
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 460px), 1fr)); gap: var(--col-gap); }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: var(--col-gap); }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: var(--col-gap); }
section { padding-block: clamp(56px, 7vw, 104px); }

/* Section variants */
.section--alt { background: var(--c-bg-2); }
.section--paper { background: var(--c-bg-card); border-block: 1px solid var(--c-border-lt); }

/* ── SVG Icon helpers ───────────────────────────────────────── */
.icon { width: 1em; height: 1em; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.icon-sm { width: 16px; height: 16px; }
.icon-md { width: 20px; height: 20px; }
.icon-lg { width: 28px; height: 28px; }
.icon-xl { width: 40px; height: 40px; stroke-width: 1.4; }

/* ── Navigation (light, with thin bottom rule) ──────────────── */
.nav {
  position: fixed; top: var(--banner-h); left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(250, 248, 243, .82);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--c-border-lt);
  transition: background .3s, border-color .3s;
}
.nav.scrolled { background: rgba(250, 248, 243, .96); border-bottom-color: var(--c-border); }
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; gap: 28px;
}
.nav__logo img { height: 50px; width: auto; }
.nav__links {
  display: flex; align-items: center; gap: 2px;
  flex: 1; justify-content: center;
}
.nav__item { position: relative; }
.nav__link {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: 6px;
  font-family: var(--ff-body); font-size: .9rem; font-weight: 500;
  color: var(--c-text-muted); letter-spacing: 0;
  transition: color .2s, background .2s;
}
.nav__link:hover, .nav__link.active { color: var(--c-text); background: rgba(46,38,65,.05); }
.nav__link svg { width: 11px; height: 11px; transition: transform .2s; }
.nav__item:hover .nav__link svg { transform: rotate(180deg); }

/* Dropdown */
.nav__dropdown {
  position: absolute; top: calc(100% + 6px); left: 0;
  min-width: 230px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 6px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: all .2s var(--ease-out);
  box-shadow: var(--shadow-lift);
}
.nav__item:hover .nav__dropdown { opacity: 1; visibility: visible; transform: none; }
.nav__dropdown a {
  display: block; padding: 9px 14px; border-radius: 5px;
  font-size: .87rem; color: var(--c-text-muted);
  transition: background .15s, color .15s;
}
.nav__dropdown a:hover { background: var(--c-bg-2); color: var(--c-text); }

.nav__cta {
  flex-shrink: 0;
  padding: 9px 20px; border-radius: 50px;
  background: var(--c-text);
  font-family: var(--ff-body); font-size: .85rem; font-weight: 600;
  color: #fff !important; letter-spacing: 0;
  transition: background .2s, transform .15s;
}
.nav__cta:hover { background: var(--c-purple); color: #fff; transform: translateY(-1px); }

/* Mobile burger */
.nav__burger {
  display: none; flex-direction: column; gap: 5px;
  width: 28px; cursor: pointer; background: none; border: none; padding: 4px;
  -webkit-appearance: none; appearance: none;
}
.nav__burger span {
  display: block;
  width: 100%;
  min-width: 20px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: all .25s;
  margin-bottom: 5px;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}
.nav__burger span:last-child { margin-bottom: 0; }
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero (DARK section) ────────────────────────────────────── */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center;
  overflow: hidden;
  padding-top: calc(var(--nav-h) + var(--banner-h));
  background: var(--c-dark);
  color: var(--c-dark-text);
}
.hero__bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 30%, rgba(139,69,159,.28) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 15% 85%, rgba(221,87,137,.16) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 90% 90%, rgba(254,220,42,.06) 0%, transparent 60%),
    var(--c-dark);
}
.hero__bg::after {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.06) 1px, transparent 0);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 80% at 60% 40%, black 30%, transparent 80%);
}
.hero__content { position: relative; z-index: 1; max-width: 780px; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--ff-mono); font-size: .72rem; letter-spacing: .14em;
  color: var(--c-purple-lt); text-transform: uppercase;
  padding: 6px 14px; border: 1px solid rgba(139,69,159,.35);
  border-radius: 50px; background: rgba(139,69,159,.1);
  margin-bottom: 28px;
  animation: fadeUp .7s var(--ease-out) .1s both;
}
.hero__eyebrow::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-purple-lt);
  animation: pulse 2.4s infinite;
}
.hero__title {
  font-family: var(--ff-display); font-size: clamp(2.6rem, 5.4vw, 4.8rem);
  font-weight: 600; line-height: 1.08; letter-spacing: -.02em;
  color: #fff; margin-bottom: 24px;
  animation: fadeUp .7s var(--ease-out) .2s both;
}
.hero__title em {
  font-style: italic; font-weight: 400;
  background: var(--grad-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__sub {
  font-size: clamp(1rem, 1.4vw, 1.15rem); color: var(--c-dark-muted);
  max-width: 560px; line-height: 1.7; margin-bottom: 36px;
  animation: fadeUp .7s var(--ease-out) .3s both;
}
.hero__actions {
  display: flex; gap: 14px; flex-wrap: wrap;
  animation: fadeUp .7s var(--ease-out) .4s both;
}
.hero__scroll-hint {
  position: absolute; bottom: 32px; left: 50%;
  transform: translateX(-50%); z-index: 1;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--ff-mono); font-size: .68rem; letter-spacing: .14em;
  color: var(--c-dark-dim); text-transform: uppercase;
  animation: fadeIn 1s var(--ease-out) 1s both;
}
.hero__scroll-line {
  width: 1px; height: 44px;
  background: linear-gradient(to bottom, var(--c-purple-lt), transparent);
  animation: scrollLine 2.4s ease infinite;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 50px;
  font-family: var(--ff-body); font-size: .92rem; font-weight: 600;
  letter-spacing: 0; cursor: pointer; border: none;
  transition: transform .15s, opacity .2s, box-shadow .2s, background .2s, color .2s, border-color .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--grad-hero); color: #fff;
  box-shadow: 0 4px 18px rgba(139,69,159,.32);
}
.btn-primary:hover { color: #fff; box-shadow: 0 8px 28px rgba(139,69,159,.44); }
.btn-outline {
  background: var(--c-purple); color: var(--c-dark-text);
  border: 1px solid var(--c-border-strong);
}
.btn-outline:hover { color: var(--c-purple); border-color: var(--c-purple); background: rgba(139,69,159,.04); }
.btn-sm { padding: 9px 18px; font-size: .82rem; }
.btn-ghost { background: rgba(46,38,65,.06); color: var(--c-text); }
.btn-ghost:hover { color: var(--c-text); background: rgba(46,38,65,.1); }

.container .btn-outline {
    border-color: rgba(255,255,255,.22);
}

/* On dark backgrounds */
.on-dark .btn-outline,
.hero .btn-outline {
  color: var(--c-dark-text); border-color: rgba(255,255,255,.22);
}
.on-dark .btn-outline:hover,
.hero .btn-outline:hover {
  color: #fff; border-color: var(--c-purple-lt); background: rgba(139,69,159,.12);
}

/* ── Section labels ─────────────────────────────────────────── */
.section-label {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--ff-mono); font-size: .72rem; letter-spacing: .14em;
  color: var(--c-purple); text-transform: uppercase; margin-bottom: 14px;
  font-weight: 500;
}
.section-label::before {
  content: ''; width: 22px; height: 1px; background: var(--c-purple);
}
.section-title {
  font-family: var(--ff-display); font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  font-weight: 600; line-height: 1.18; letter-spacing: -.015em; color: var(--c-text);
  margin-bottom: 16px;
}
.section-title em {
  font-style: italic; font-weight: 400;
  background: var(--grad-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-sub {
  color: var(--c-text-muted); max-width: 600px; line-height: 1.7;
  font-size: 1.02rem; margin-bottom: 44px;
}

/* On dark sections */
.on-dark { background: var(--c-dark); color: var(--c-dark-text); }
.on-dark .section-title { color: #fff; }
.on-dark .section-sub { color: var(--c-dark-muted); }
.on-dark .section-label { color: var(--c-purple-lt); }
.on-dark .section-label::before { background: var(--c-purple-lt); }
.on-dark a { color: var(--c-purple-lt); }
.on-dark a:hover { color: var(--c-pink-lt); }

/* ── Cards (light) ──────────────────────────────────────────── */
.card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border-lt);
  border-radius: var(--radius-lg);
  padding: 26px; position: relative; overflow: hidden;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.card::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  background: var(--grad-card); opacity: 0;
  transition: opacity .25s;
  pointer-events: none;
}
.card:hover { border-color: var(--c-border); transform: translateY(-2px); box-shadow: var(--shadow-card); }
.card:hover::before { opacity: 1; }
.card__tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--ff-mono); font-size: .7rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--c-purple);
  margin-bottom: 12px; font-weight: 500;
}
.card__title {
  font-family: var(--ff-display); font-size: 1.18rem; font-weight: 600;
  color: var(--c-text); margin-bottom: 10px; line-height: 1.32;
}
.card__body { font-size: .93rem; color: var(--c-text-muted); line-height: 1.7; }
.card__img {
  width: 100%; aspect-ratio: 16/9; object-fit: cover;
  border-radius: var(--radius-md); margin-bottom: 18px;
}
.card__meta {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  font-size: .78rem; color: var(--c-text-dim); margin-top: 16px;
}

/* Platform / tool cards */
.platform-card {
  border-radius: var(--radius-xl); padding: 32px;
  background: var(--c-bg-card); border: 1px solid var(--c-border-lt);
  display: flex; flex-direction: column; gap: 14px;
  transition: border-color .25s, transform .2s, box-shadow .2s;
}
.platform-card:hover { border-color: var(--c-border-strong); transform: translateY(-3px); box-shadow: var(--shadow-card); }
.platform-card__icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: var(--grad-subtle); border: 1px solid var(--c-border-lt);
  display: grid; place-items: center;
  color: var(--c-purple);
}
.platform-card__icon svg { width: 24px; height: 24px; }
.platform-card__name {
  font-family: var(--ff-display); font-size: 1.32rem; font-weight: 600; color: var(--c-text);
  letter-spacing: -.005em;
}
.platform-card__desc { font-size: .9rem; color: var(--c-text-muted); line-height: 1.7; }
.platform-card__link {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--ff-body); font-size: .86rem; font-weight: 600;
  color: var(--c-purple); margin-top: auto;
  transition: gap .2s, color .2s;
}
.platform-card__link:hover { gap: 10px; color: var(--c-pink); }
.platform-card__link svg { width: 14px; height: 14px; }

/* ── Blog ───────────────────────────────────────────────────── */
.post-card {
  display: flex; flex-direction: column;
  background: var(--c-bg-card); border: 1px solid var(--c-border-lt);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: border-color .25s, transform .2s, box-shadow .2s;
}
.post-card:hover { border-color: var(--c-border); transform: translateY(-3px); box-shadow: var(--shadow-card); }
.post-card__img {
  width: 100%; aspect-ratio: 16/9; object-fit: cover;
  background: var(--c-bg-3);
}
.post-card__body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.post-card__cat {
  font-family: var(--ff-mono); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--c-pink-dk); font-weight: 500;
  margin-bottom: 10px;
}
.post-card__title {
  font-family: var(--ff-display); font-size: 1.15rem; font-weight: 600;
  color: var(--c-text); line-height: 1.32; margin-bottom: 10px;
  transition: color .2s;
}
.post-card:hover .post-card__title { color: var(--c-purple); }
.post-card__excerpt { font-size: .9rem; color: var(--c-text-muted); line-height: 1.65; flex: 1; }
.post-card__meta {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--c-border-lt);
  font-size: .76rem; color: var(--c-text-dim);
}

/* Article page */
.article-header { padding-block: 80px 40px; }
.article-title {
  font-family: var(--ff-display); font-size: clamp(2rem, 4.4vw, 3.2rem);
  font-weight: 600; color: var(--c-text); line-height: 1.15; letter-spacing: -.015em;
  margin-bottom: 18px;
}
.article-meta {
  display: flex; gap: 18px; flex-wrap: wrap;
  font-family: var(--ff-mono); font-size: .76rem; color: var(--c-text-muted);
  letter-spacing: .06em; text-transform: uppercase;
}
/* Bug 3 fix: article-body must always be visible.
   It should NOT use animate-on-scroll (the class starts at opacity:0 and
   relies on IntersectionObserver which may never fire on very tall elements).
   Force opacity and transform even if the class is present on the element. */
.article-body {
  font-size: 1.08rem; line-height: 1.8; color: var(--c-text);
  max-width: 720px;
  opacity: 1 !important;
  transform: none !important;
}
.article-body h2, .article-body h3 {
  font-family: var(--ff-display); color: var(--c-text);
  font-weight: 600; letter-spacing: -.01em;
  margin-top: 2.4em; margin-bottom: .7em;
}
.article-body h2 { font-size: 1.62rem; }
.article-body h3 { font-size: 1.28rem; }
.article-body p { margin-bottom: 1.3em; }
.article-body a {
  color: var(--c-purple); border-bottom: 1px solid rgba(139,69,159,.4);
  transition: color .15s, border-color .15s;
}
.article-body a:hover { color: var(--c-pink); border-bottom-color: var(--c-pink); }
.article-body ul, .article-body ol { margin: 0 0 1.4em 1.5em; }
.article-body ul li { list-style: none; position: relative; padding-left: 4px; margin-bottom: .5em; }
.article-body ul li::before {
  content: ''; position: absolute; left: -18px; top: .68em;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-purple);
}
.article-body ol { list-style: decimal; }
.article-body ol li { margin-bottom: .5em; padding-left: 4px; }
.article-body code {
  font-family: var(--ff-mono); font-size: .88em;
  background: var(--c-bg-2); padding: 2px 7px; border-radius: 4px;
  color: var(--c-purple-dk);
}
.article-body pre {
  background: var(--c-dark); color: var(--c-dark-text);
  border-radius: var(--radius-md); padding: 20px; overflow-x: auto;
  margin-bottom: 1.6em; font-size: .9em;
}
.article-body pre code { background: transparent; color: inherit; padding: 0; }
.article-body blockquote {
  border-left: 3px solid var(--c-purple);
  padding: 4px 22px; margin: 2em 0;
  font-family: var(--ff-display); font-style: italic; font-size: 1.12em;
  color: var(--c-text-muted);
}
.article-feat-img {
  width: 100%; border-radius: var(--radius-lg); margin-bottom: 40px;
  aspect-ratio: 21/9; object-fit: cover;
}

/* ── Forms ──────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.form-label {
  font-family: var(--ff-body); font-size: .85rem; font-weight: 600;
  color: var(--c-text); letter-spacing: 0;
}
.form-input, .form-textarea, .form-select {
  width: 100%; padding: 12px 14px;
  background: var(--c-bg-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-sm); color: var(--c-text);
  font-size: .95rem; transition: border-color .2s, box-shadow .2s;
  appearance: none;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none; border-color: var(--c-purple);
  box-shadow: 0 0 0 3px rgba(139,69,159,.14);
}
.form-textarea { min-height: 140px; resize: vertical; }
.form-error { font-size: .8rem; color: var(--c-pink-dk); margin-top: 4px; }
.form-note { font-size: .8rem; color: var(--c-text-dim); margin-top: 8px; }
.alert {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 13px 16px; border-radius: var(--radius-sm); font-size: .9rem;
  margin-bottom: 20px;
}
.alert svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.alert-success { background: rgba(34,140,90,.08); border: 1px solid rgba(34,140,90,.25); color: #226c4c; }
.alert-error   { background: rgba(193,52,99,.07); border: 1px solid rgba(193,52,99,.25); color: var(--c-pink-dk); }

/* ── Page hero (inner pages) ─ Light variant by default ─────── */
.page-hero {
  padding: calc(var(--nav-h) + var(--banner-h) + 56px) 0 56px;
  background:
    linear-gradient(180deg, rgba(139,69,159,.06) 0%, transparent 100%),
    var(--c-bg);
  border-bottom: 1px solid var(--c-border-lt);
  position: relative;
  overflow: hidden;

}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(46,38,65,.06) 1px, transparent 0);
  background-size: 28px 28px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}
.page-hero > * { position: relative; }
.page-hero__label {
  font-family: var(--ff-mono); font-size: .72rem; letter-spacing: .14em;
  color: var(--c-purple); text-transform: uppercase; margin-bottom: 14px;
  font-weight: 500;
}
.page-hero__title {
  font-family: var(--ff-display); font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  font-weight: 600; letter-spacing: -.018em; color: var(--c-text);
  line-height: 1.12; margin-bottom: 18px;
}
.page-hero__sub {
  font-size: 1.08rem; color: var(--c-text-muted); max-width: 620px; line-height: 1.7;
}

/* Dark page-hero variant (opt-in) */
.page-hero--dark {
  background: var(--c-dark);
  border-bottom-color: rgba(255,255,255,.06);
}
.page-hero--dark::before {
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.06) 1px, transparent 0);
}
.page-hero--dark .page-hero__label { color: var(--c-purple-lt); }
.page-hero--dark .page-hero__title { color: #fff; }
.page-hero--dark .page-hero__sub { color: var(--c-dark-muted); }

/* ── Pillars ────────────────────────────────────────────────── */
.pillar {
  padding: 26px; border-radius: var(--radius-lg);
  border: 1px solid var(--c-border-lt);
  background: var(--c-bg-card);
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.pillar:hover { border-color: var(--c-border); transform: translateY(-2px); box-shadow: var(--shadow-card); }
.pillar__num {
  font-family: var(--ff-mono); font-size: .72rem; color: var(--c-text-dim);
  letter-spacing: .14em; margin-bottom: 14px;
}
.pillar__icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--grad-subtle); border: 1px solid var(--c-border-lt);
  display: grid; place-items: center;
  color: var(--c-purple);
  margin-bottom: 14px;
}
.pillar__icon svg { width: 22px; height: 22px; }
.pillar__name {
  font-family: var(--ff-display); font-size: 1.08rem; font-weight: 600; color: var(--c-text);
  margin-bottom: 6px;
}
.pillar__desc { font-size: .9rem; color: var(--c-text-muted); line-height: 1.65; }

/* ── Stats bar ──────────────────────────────────────────────── */
.stats-bar {
  display: flex; gap: 32px; flex-wrap: wrap;
  padding: 36px 0; border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}
.stat { text-align: center; flex: 1; min-width: 130px; }
.stat__val {
  font-family: var(--ff-display); font-size: 2.6rem; font-weight: 600;
  background: var(--grad-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat__lbl {
  font-family: var(--ff-mono); font-size: .72rem; color: var(--c-text-muted);
  margin-top: 8px; letter-spacing: .1em; text-transform: uppercase;
}

/* ── Partners strip ─────────────────────────────────────────── */
.partners { text-align: center; }
.partners__label {
  font-family: var(--ff-mono); font-size: .72rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--c-text-dim); margin-bottom: 28px;
}
.partners__strip {
  display: flex; justify-content: center; align-items: center;
  flex-wrap: wrap; gap: 36px; opacity: .7;
  filter: grayscale(1);
}
.partners__strip img { height: 36px; width: auto; }

/* ── Gradient divider ───────────────────────────────────────── */
.gradient-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--c-purple), var(--c-pink), transparent);
  margin: 0; border: none;
}

/* ── CTA strip (DARK) ───────────────────────────────────────── */
.cta-strip {
  background: var(--c-dark);
  color: var(--c-dark-text);
  border-radius: var(--radius-xl);
  padding: clamp(40px, 6vw, 68px) clamp(24px, 4vw, 60px);
  display: flex; gap: 36px; align-items: center; justify-content: space-between;
  flex-wrap: wrap;
  position: relative; overflow: hidden;
}
.cta-strip::before {
  content: '';
  position: absolute; width: 480px; height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139,69,159,.35), transparent 70%);
  right: -140px; top: 50%; transform: translateY(-50%);
  pointer-events: none;
}
.cta-strip::after {
  content: '';
  position: absolute; width: 280px; height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(254,220,42,.1), transparent 70%);
  left: -80px; bottom: -80px;
  pointer-events: none;
}
.cta-strip > * { position: relative; }
.cta-strip .section-title { color: #fff; }
.cta-strip .section-sub { color: var(--c-dark-muted); }

/* ── Footer (DARK) ──────────────────────────────────────────── */
.footer {
  background: var(--c-dark); color: var(--c-dark-muted);
  border-top: 1px solid rgba(255,255,255,.05);
  padding-top: 64px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(24px, 4vw, 48px);
  margin-bottom: 44px;
}
.footer__brand img { height: 50px; width: auto; filter: brightness(0) invert(1); }
.footer__brand p { font-size: .9rem; color: var(--c-dark-muted); max-width: 280px; line-height: 1.7; margin-bottom: 20px; }
.footer__heading {
  font-family: var(--ff-mono); font-size: .72rem; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--c-dark-text); margin-bottom: 14px;
}
.footer__links { display: flex; flex-direction: column; gap: 8px; }
.footer__links a { font-size: .9rem; color: var(--c-dark-muted); transition: color .15s; }
.footer__links a:hover { color: #fff; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 20px 0;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  font-size: .8rem; color: var(--c-dark-dim);
}
.footer__bottom a { color: var(--c-dark-dim); }
.footer__bottom a:hover { color: #fff; }

/* Newsletter */
.subscribe-form { display: flex; gap: 8px; flex-wrap: wrap; }
.subscribe-form input {
  flex: 1; min-width: 180px; padding: 10px 14px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-radius: 6px; color: #fff; font-size: .88rem;
}
.subscribe-form input::placeholder { color: var(--c-dark-dim); }
.subscribe-form input:focus { outline: none; border-color: var(--c-purple-lt); background: rgba(255,255,255,.08); }
.subscribe-form button {
  padding: 10px 20px; background: var(--c-purple); color: #fff; border: none;
  border-radius: 6px; font-family: var(--ff-body); font-size: .85rem; font-weight: 600;
  cursor: pointer; transition: background .2s;
}
.subscribe-form button:hover { background: var(--c-pink); }

/* ── Admin (light) ──────────────────────────────────────────── */
.admin-layout { display: flex; min-height: 100vh; background: var(--c-bg); }
.admin-sidebar {
  width: 240px; flex-shrink: 0;
  background: var(--c-bg-card); border-right: 1px solid var(--c-border-lt);
  padding: 24px 14px; display: flex; flex-direction: column; gap: 2px;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.admin-sidebar a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 6px;
  font-size: .87rem; color: var(--c-text-muted);
  transition: background .15s, color .15s;
}
.admin-sidebar a svg { width: 16px; height: 16px; opacity: .8; }
.admin-sidebar a:hover, .admin-sidebar a.active {
  background: rgba(139,69,159,.08); color: var(--c-purple);
}
.admin-main { flex: 1; padding: 32px; overflow-y: auto; }
.admin-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 28px; padding-bottom: 20px;
  border-bottom: 1px solid var(--c-border-lt);
}
.admin-table {
  width: 100%; border-collapse: collapse;
  font-size: .88rem; background: var(--c-bg-card);
  border-radius: var(--radius-md); overflow: hidden;
}
.admin-table th {
  text-align: left; padding: 12px 14px;
  font-family: var(--ff-mono); font-size: .72rem; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase; color: var(--c-text-muted);
  border-bottom: 1px solid var(--c-border);
  background: var(--c-bg-2);
}
.admin-table td {
  padding: 13px 14px; border-bottom: 1px solid var(--c-border-lt);
  color: var(--c-text);
}
.admin-table tr:hover td { background: rgba(139,69,159,.04); }
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 50px;
  font-family: var(--ff-mono); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 500;
}
.badge-published { background: rgba(34,140,90,.1);  color: #1f6b48; }
.badge-draft     { background: rgba(202,138,4,.12);  color: #92580a; }
.badge-archived  { background: rgba(100,100,120,.12); color: #555570; }
.badge-new       { background: rgba(139,69,159,.12); color: var(--c-purple); }

/* ── Utilities ──────────────────────────────────────────────── */
.text-gradient {
  background: var(--grad-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-muted { color: var(--c-text-muted); }
.text-center { text-align: center; }
.mt-auto { margin-top: auto; }
.mb-0 { margin-bottom: 0; }
.hidden { display: none; }
.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes pulse  { 0%,100% { opacity: 1; } 50% { opacity: .4; } }
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.animate-on-scroll {
  opacity: 0; transform: translateY(20px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out);
}
.animate-on-scroll.visible { opacity: 1; transform: none; }

/* ── Announcement Banner ────────────────────────────────────── */
.announce-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 110;
  background: linear-gradient(135deg,#2e1e45 0%,#8b459f 60%,#dd5789 100%);
  color: #fff; font-size: .82rem; line-height: 1.5;
  transform: translateY(-100%);
  transition: transform .3s ease;
}
.announce-banner.visible { transform: translateY(0); }
.announce-banner__inner {
  max-width: 1200px; margin: 0 auto;
  padding: 10px 20px;
  text-align: center;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap; justify-content: center;
}
.announce-banner__text { min-width: 200px; }
.announce-banner__text a { color: #fedc2a; text-decoration: underline; font-weight: 600; }
.announce-banner__close {
  position: absolute; top: 50%; right: 14px; transform: translateY(-50%);
  background: none; border: none; color: #fff; cursor: pointer;
  font-size: 1.1rem; line-height: 1; padding: 4px; opacity: .75;
  -webkit-appearance: none; appearance: none; transition: opacity .2s;
}
.announce-banner__close:hover { opacity: 1; }

/* ── Cookie Banner ──────────────────────────────────────────── */
.cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 500;
  background: #1a1030; color: #e8e4f0;
  border-top: 1px solid rgba(139,69,159,.35);
  box-shadow: 0 -4px 32px rgba(0,0,0,.25);
  transform: translateY(100%);
  transition: transform .35s ease;
}
.cookie-banner.visible { transform: translateY(0); }
.cookie-banner__inner {
  max-width: 1200px; margin: 0 auto;
  padding: 18px 20px;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
}
.cookie-banner__text {
  flex: 1; min-width: 260px; font-size: .85rem; line-height: 1.65; color: #ccc;
}
.cookie-banner__text a { color: #c07de0; text-decoration: underline; }
.cookie-banner__actions { display: flex; gap: 10px; flex-shrink: 0; flex-wrap: wrap; }
.cookie-banner__decline {
  padding: 9px 20px; border-radius: 50px; font-size: .82rem; font-weight: 600;
  cursor: pointer; background: transparent;
  border: 1px solid rgba(255,255,255,.2); color: #aaa;
  -webkit-appearance: none; appearance: none; transition: border-color .2s, color .2s;
}
.cookie-banner__decline:hover { border-color: rgba(255,255,255,.5); color: #fff; }
.cookie-banner__accept {
  padding: 9px 24px; border-radius: 50px; font-size: .82rem; font-weight: 600;
  cursor: pointer; border: none; color: #fff;
  background: linear-gradient(135deg,#8b459f,#dd5789);
  -webkit-appearance: none; appearance: none;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  /* Bug 1: hide desktop nav links + CTA; show burger */
  .nav__links { display: none; }
  .nav__cta   { display: none; }
  .nav__burger { display: -webkit-flex; display: block; }

  .nav__mobile-menu {
    display: none; position: fixed; inset: calc(var(--nav-h) + var(--banner-h)) 0 0;
    background: var(--c-bg); overflow-y: auto; padding: 24px;
    z-index: 99;
    flex-direction: column; gap: 4px;
  }
  .nav__mobile-menu.open { display: flex; }
  .nav__mobile-menu a {
    display: block; padding: 12px 16px; border-radius: 8px;
    font-family: var(--ff-body); font-weight: 500; color: var(--c-text-muted);
  }
  .nav__mobile-menu a:hover { background: rgba(46,38,65,.05); color: var(--c-text); }
  .nav__mobile-menu .mobile-sub { padding-left: 16px; font-size: .9rem; opacity: .85; }

  .footer__grid { grid-template-columns: 1fr 1fr; }

  /* Bug 2: stack the alternating feature cards (Innovations / Research / Pipelines pages)
     These cards use inline style="display:grid;grid-template-columns:1fr 1fr"
     We force single-column via a utility class .card-split that pages should use,
     AND override inline styles with the attribute selector as a safety net. */
  .card-split,
  .card[style*="grid-template-columns:1fr 1fr"],
  .card[style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }
  /* Reorder: on mobile the icon placeholder (2nd child) goes after text */
  .card-split > :last-child,
  .card[style*="grid-template-columns:1fr 1fr"] > :last-child,
  .card[style*="grid-template-columns: 1fr 1fr"] > :last-child {
    order: 2;
  }
}

@media (max-width: 600px) {
  .hero__actions { flex-direction: column; }
  .footer__grid { grid-template-columns: 1fr; }
  .stats-bar { justify-content: center; }
  .cta-strip { text-align: center; justify-content: center; }
  .admin-sidebar { display: none; }

  /* Bug 2: also collapse blog-grid-layout (resource/blog post sidebar) */
  .blog-grid-layout {
    grid-template-columns: 1fr !important;
  }
  .blog-sidebar { order: 2; }
}