/* ============================================================
   Clessbio — Modern biotech corporate site (Apogee-style)
   Built 2026-09-07
   Design language: minimal, content-first, generous whitespace
   ============================================================ */

:root {
  /* Palette — refined navy + teal */
  --navy-950: #061B36;
  --navy-900: #0A2540;
  --navy-800: #103256;
  --navy-700: #1B4470;
  --navy-100: #E6ECF2;
  --teal:     #00B5C5;
  --teal-dk:  #008C9A;
  --teal-lt:  #E1F6F8;
  --gold:     #E8B547; /* accent for milestones */
  --ink:      #1A2B3D;
  --ink-soft: #4A5867;
  --muted:    #6B7884;
  --line:     #E5EAEE;
  --line-soft:#F0F3F5;
  --bg-soft:  #F7F9FB;
  --bg-tint:  #FAFBFC;
  --white:    #FFFFFF;

  /* Shape */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 24px;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(10,37,64,.04), 0 2px 6px rgba(10,37,64,.04);
  --shadow:    0 2px 8px rgba(10,37,64,.05), 0 8px 24px rgba(10,37,64,.06);
  --shadow-lg: 0 4px 12px rgba(10,37,64,.06), 0 18px 48px rgba(10,37,64,.10);

  /* Layout */
  --max:    1240px;
  --max-narrow: 920px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: "Inter", "Helvetica Neue", -apple-system, BlinkMacSystemFont,
               "Segoe UI", "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }
button { font: inherit; cursor: pointer; }
b, strong { font-weight: 700; }

/* ============= Layout ============= */
.container        { max-width: var(--max);        margin: 0 auto; padding: 0 28px; }
.container-narrow { max-width: var(--max-narrow); margin: 0 auto; padding: 0 28px; }

/* ============= Header / Nav ============= */
.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, background .25s;
}
.site-header.scrolled {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.96);
}
.nav-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
  height: 72px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; }
.brand img { height: 36px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  position: relative;
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--navy-900);
  border-radius: 6px;
  transition: color .15s, background .15s;
}
.main-nav a:hover { color: var(--teal-dk); }
.main-nav a.active { color: var(--teal-dk); }
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: -1px;
  height: 2px;
  background: var(--teal);
  border-radius: 2px;
}

.lang-switch {
  margin-left: 8px;
  padding: 6px 14px;
  border: 1.5px solid var(--navy-900);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy-900);
  transition: all .15s;
  letter-spacing: .3px;
}
.lang-switch:hover { background: var(--navy-900); color: #fff; }

.nav-toggle { display: none; background: none; border: 0; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy-900); margin: 5px 0; transition: .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============= Hero ============= */
.hero {
  position: relative;
  padding: 168px 0 110px;
  background: linear-gradient(180deg, #F7FAFC 0%, #FFFFFF 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 18% 12%, rgba(0,181,197,.06) 0%, transparent 45%),
    radial-gradient(circle at 88% 84%, rgba(10,37,64,.04) 0%, transparent 45%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 72px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 2.2px;
  text-transform: uppercase;
  color: var(--teal-dk);
  margin-bottom: 24px;
}
.hero-eyebrow::before {
  content: "";
  width: 28px; height: 1.5px;
  background: var(--teal);
}
.hero h1 {
  font-size: clamp(36px, 4.6vw, 60px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--navy-900);
  margin-bottom: 26px;
}
.hero h1 .accent { color: var(--teal-dk); }
.hero p.lede {
  font-size: clamp(17px, 1.45vw, 20px);
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 580px;
  margin-bottom: 38px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-visual {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #0A2540;
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,37,64,.15) 0%, transparent 50%);
  pointer-events: none;
}
.hero-stat-row {
  position: absolute;
  left: 24px; right: 24px; bottom: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  z-index: 2;
}
.hero-stat {
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px);
  border-radius: var(--r-md);
  padding: 14px 16px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(10,37,64,.10);
}
.hero-stat .v {
  font-size: 22px;
  font-weight: 800;
  color: var(--navy-900);
  line-height: 1;
  margin-bottom: 4px;
}
.hero-stat .v small { font-size: 14px; font-weight: 600; color: var(--teal-dk); margin-left: 2px; }
.hero-stat .l { font-size: 12px; color: var(--muted); font-weight: 500; }

.hero-foot {
  position: relative;
  margin-top: 80px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
  display: flex; gap: 48px; flex-wrap: wrap;
  color: var(--muted);
  font-size: 14.5px;
}
.hero-foot strong { color: var(--navy-900); font-weight: 700; }

/* ============= Buttons ============= */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .1px;
  border: 1.5px solid transparent;
  transition: transform .15s, box-shadow .2s, background .15s, color .15s, border-color .15s;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--navy-900); color: #fff; }
.btn-primary:hover { background: var(--navy-800); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(10,37,64,.20); }
.btn-teal { background: var(--teal); color: #fff; }
.btn-teal:hover { background: var(--teal-dk); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0,181,197,.30); }
.btn-ghost { background: transparent; border-color: var(--navy-900); color: var(--navy-900); }
.btn-ghost:hover { background: var(--navy-900); color: #fff; }
.btn-ghost-light { background: transparent; border-color: rgba(255,255,255,.6); color: #fff; }
.btn-ghost-light:hover { background: rgba(255,255,255,.10); border-color: #fff; }
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ============= Section base ============= */
section { position: relative; }
section.block      { padding: 110px 0; }
section.block-tight{ padding: 80px 0; }
section.block.soft { background: var(--bg-soft); }
section.block.dark { background: var(--navy-900); color: #fff; }
section.block.dark .sec-head h2 { color: #fff; }
section.block.dark .sec-head p  { color: rgba(255,255,255,.7); }
section.block.dark .sec-eyebrow { color: var(--teal); }

.sec-head { max-width: 760px; margin-bottom: 56px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 2.2px;
  text-transform: uppercase;
  color: var(--teal-dk);
  margin-bottom: 14px;
}
.sec-head h2 {
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--navy-900);
  margin-bottom: 18px;
}
.sec-head p { font-size: 17.5px; color: var(--ink-soft); line-height: 1.65; max-width: 720px; }
.sec-head.center p { margin-left: auto; margin-right: auto; }

/* ============= Approach cards (3 col) ============= */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px 32px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--navy-100); }

.num-card { position: relative; padding-top: 32px; }
.num-card .num {
  display: inline-flex;
  font-size: 14px;
  font-weight: 800;
  color: var(--teal-dk);
  letter-spacing: 1px;
  margin-bottom: 18px;
  padding: 4px 10px;
  background: var(--teal-lt);
  border-radius: 4px;
}
.num-card h3 { font-size: 19px; font-weight: 700; color: var(--navy-900); margin-bottom: 12px; letter-spacing: -0.01em; }
.num-card p  { color: var(--ink-soft); font-size: 15.5px; line-height: 1.7; }

.icon-card { padding: 36px 32px; }
.icon-card .icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--teal-lt);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
}
.icon-card .icon svg { width: 24px; height: 24px; stroke: var(--teal-dk); fill: none; stroke-width: 1.8; }
.icon-card h3 { font-size: 19px; font-weight: 700; color: var(--navy-900); margin-bottom: 12px; letter-spacing: -0.01em; }
.icon-card p  { color: var(--ink-soft); font-size: 15.5px; line-height: 1.7; }

/* ============= About split (text + image) ============= */
.about-split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.about-split .txt h2 {
  font-size: clamp(26px, 2.8vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--navy-900);
  margin: 14px 0 22px;
}
.about-split .txt p { color: var(--ink-soft); font-size: 16.5px; margin-bottom: 16px; line-height: 1.75; }
.about-split .pic { position: relative; }
.about-split .pic img { border-radius: var(--r-xl); box-shadow: var(--shadow-lg); aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.chip-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.chip {
  padding: 7px 16px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 13.5px;
  font-weight: 600;
}
.chip.teal { background: var(--teal-lt); border-color: transparent; color: var(--teal-dk); }

/* ============= Science / Platform ============= */
.science-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 72px;
  align-items: center;
}
.science-visual {
  position: relative;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: linear-gradient(135deg, #F0F7F9 0%, #E6F2F4 100%);
  padding: 32px;
  box-shadow: var(--shadow);
}
.science-visual img { width: 100%; height: auto; border-radius: var(--r-md); }

.feature-list { display: flex; flex-direction: column; gap: 4px; }
.feature-list li {
  display: flex;
  gap: 22px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.feature-list li:last-child { border-bottom: 0; }
.feature-list .ix {
  flex: none;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--navy-900);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  font-variant-numeric: tabular-nums;
  letter-spacing: .5px;
}
.feature-list .ix.teal { background: var(--teal); }
.feature-list .body { flex: 1; }
.feature-list h4 {
  font-size: 17.5px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 8px;
  letter-spacing: -0.005em;
}
.feature-list p { color: var(--ink-soft); font-size: 15.5px; line-height: 1.7; }
.feature-list .tag {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--teal-dk);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

/* ============= Pipeline table (Apogee-style multi-stage) ============= */
.pipeline-wrap {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow);
}
.pipeline-scroll { overflow-x: auto; }
.pipeline-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
  font-size: 14.5px;
}
.pipeline-table thead th {
  background: var(--navy-900);
  color: rgba(255,255,255,.95);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 18px 16px;
  text-align: left;
  border-bottom: 1px solid var(--navy-800);
}
.pipeline-table thead th.stage { text-align: center; }
.pipeline-table tbody tr { border-top: 1px solid var(--line); }
.pipeline-table tbody tr:hover { background: var(--bg-tint); }
.pipeline-table td { padding: 22px 16px; vertical-align: top; }
.pipeline-table td.prog-cell { min-width: 200px; }
.pipeline-table td.stage { text-align: center; vertical-align: middle; min-width: 120px; }
.prog-name {
  display: block;
  font-size: 18px;
  font-weight: 800;
  color: var(--navy-900);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.prog-name code {
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--muted);
  background: var(--bg-soft);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: 2px;
}
.prog-sub { display: block; color: var(--ink-soft); font-size: 13.5px; margin-bottom: 8px; }
.prog-plat {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--teal-dk);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 3px 8px;
  background: var(--teal-lt);
  border-radius: 4px;
}
.indication {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.55;
}
.indication b { display: block; color: var(--navy-900); margin-bottom: 2px; font-size: 14.5px; }

.stage-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .3px;
  white-space: nowrap;
}
.stage-pill .dot {
  width: 7px; height: 7px; border-radius: 50%;
  display: inline-block;
  flex: none;
}
.stage-pill.active { background: var(--navy-900); color: #fff; }
.stage-pill.active .dot { background: var(--teal); box-shadow: 0 0 0 3px rgba(0,181,197,.20); }
.stage-pill.completed { background: var(--teal); color: #fff; }
.stage-pill.completed .dot { background: #fff; }
.stage-pill.planned { background: var(--bg-soft); color: var(--muted); border: 1px solid var(--line); }
.stage-pill.planned .dot { background: var(--muted); }
.stage-note {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.5;
  max-width: 200px;
  margin-left: auto; margin-right: auto;
}

/* Program detail cards (Apogee-style) */
.prog-detail {
  margin-top: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 40px 44px;
  box-shadow: var(--shadow-sm);
}
.prog-detail + .prog-detail { margin-top: 20px; }
.prog-detail .tag-row { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.prog-detail h3 {
  font-size: 26px;
  font-weight: 800;
  color: var(--navy-900);
  letter-spacing: -0.015em;
  margin-bottom: 14px;
  line-height: 1.25;
}
.prog-detail h3 .sub { display: block; font-size: 15px; font-weight: 500; color: var(--ink-soft); margin-top: 4px; letter-spacing: 0; }
.prog-detail p { color: var(--ink-soft); font-size: 16px; line-height: 1.75; margin-bottom: 12px; max-width: 880px; }
.prog-detail p b { color: var(--navy-900); }
.prog-detail .milestones {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 32px;
}
.prog-detail .milestones .ms .k {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.prog-detail .milestones .ms .v { font-size: 15px; color: var(--navy-900); font-weight: 600; }

/* ============= News / Updates ============= */
.news-list { display: flex; flex-direction: column; }
.news-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.news-item:first-child { padding-top: 0; }
.news-item:last-child  { border-bottom: 0; padding-bottom: 0; }
.news-date {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: .5px;
  font-variant-numeric: tabular-nums;
}
.news-body h4 {
  font-size: 17.5px;
  font-weight: 700;
  color: var(--navy-900);
  letter-spacing: -0.005em;
  line-height: 1.4;
  margin-bottom: 4px;
}
.news-body p { font-size: 14.5px; color: var(--ink-soft); line-height: 1.6; }
.news-empty {
  padding: 36px;
  text-align: center;
  background: var(--bg-soft);
  border-radius: var(--r-lg);
  color: var(--ink-soft);
}
.news-empty strong { display: block; color: var(--navy-900); font-size: 17px; margin-bottom: 6px; }

/* ============= BD CTA ============= */
.cta-band {
  position: relative;
  padding: 110px 0;
  background: var(--navy-900);
  color: #fff;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(0,181,197,.18) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0,181,197,.10) 0%, transparent 50%);
  pointer-events: none;
}
.cta-band .container { position: relative; z-index: 1; }
.cta-band h2 {
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-bottom: 18px;
  max-width: 760px;
}
.cta-band p {
  font-size: 17.5px;
  color: rgba(255,255,255,.78);
  line-height: 1.7;
  max-width: 720px;
  margin-bottom: 36px;
}
.cta-row { display: flex; gap: 28px; flex-wrap: wrap; align-items: center; }
.contact-mail {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 16.5px;
  font-weight: 600;
  color: #fff;
  padding: 14px 0;
  border-bottom: 1.5px solid var(--teal);
}
.contact-mail svg { width: 20px; height: 20px; stroke: var(--teal); fill: none; stroke-width: 1.8; }
.contact-mail:hover { color: var(--teal); }

/* ============= Presentation ============= */
.doc-card {
  display: flex; align-items: center; gap: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 36px;
  transition: transform .2s, box-shadow .2s;
}
.doc-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.doc-card .pdf-icon {
  flex: none;
  width: 64px; height: 80px;
  border-radius: 6px;
  background: linear-gradient(135deg, #0A2540 0%, #103256 100%);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 1.5px;
  position: relative;
  box-shadow: 0 4px 12px rgba(10,37,64,.18);
}
.doc-card .pdf-icon::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 14px; height: 14px;
  background: linear-gradient(135deg, transparent 50%, rgba(255,255,255,.18) 50%);
  border-radius: 0 var(--r-sm) 0 var(--r-sm);
}
.doc-card .meta { flex: 1; }
.doc-card h3 { font-size: 18px; font-weight: 700; color: var(--navy-900); margin-bottom: 4px; letter-spacing: -0.005em; }
.doc-card p  { color: var(--muted); font-size: 13.5px; margin-bottom: 14px; }
.doc-card .dl {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--teal-dk);
  font-weight: 600;
  font-size: 14.5px;
}
.doc-card .dl svg { width: 16px; height: 16px; }
.doc-card .dl:hover { color: var(--navy-900); }

/* ============= Page banner (subpages) ============= */
.page-banner {
  position: relative;
  padding: 168px 0 80px;
  background: linear-gradient(135deg, #0A2540 0%, #103256 60%, #143C66 100%);
  color: #fff;
  overflow: hidden;
}
.page-banner::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 12% 20%, rgba(0,181,197,.20) 0%, transparent 40%),
    radial-gradient(circle at 88% 80%, rgba(0,181,197,.12) 0%, transparent 45%);
  pointer-events: none;
}
.page-banner::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: rgba(255,255,255,.10);
}
.page-banner .container { position: relative; z-index: 1; }
.breadcrumb {
  font-size: 13.5px;
  color: rgba(255,255,255,.55);
  margin-bottom: 18px;
  letter-spacing: .3px;
}
.breadcrumb a:hover { color: var(--teal); }
.breadcrumb .sep { margin: 0 8px; opacity: .5; }
.page-banner h1 {
  font-size: clamp(34px, 4.4vw, 52px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
  max-width: 900px;
}
.page-banner p {
  font-size: 17.5px;
  color: rgba(255,255,255,.78);
  max-width: 760px;
  line-height: 1.65;
}
.page-banner .eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 2.2px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
}

/* ============= Footer ============= */
.site-footer { background: var(--navy-950); color: rgba(255,255,255,.65); }
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 56px;
  padding: 80px 0 56px;
}
.footer-brand .logo-wrap {
  display: inline-block;
  background: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  margin-bottom: 22px;
}
.footer-brand .logo-wrap img { height: 32px; width: auto; }
.footer-brand p { font-size: 14.5px; line-height: 1.7; max-width: 380px; }
.footer-col h5 {
  color: #fff;
  font-size: 13px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  margin-bottom: 22px;
  font-weight: 700;
}
.footer-col ul li { margin-bottom: 12px; font-size: 14.5px; }
.footer-col ul a { transition: color .15s; }
.footer-col ul a:hover { color: var(--teal); }
.footer-col .contact-line {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 14.5px;
  margin-bottom: 12px;
}
.footer-col .contact-line svg { width: 16px; height: 16px; flex: none; stroke: var(--teal); margin-top: 3px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: rgba(255,255,255,.45);
}
.footer-bottom a:hover { color: var(--teal); }
.footer-bottom .legal { display: flex; gap: 24px; flex-wrap: wrap; }

/* ============= Reveal animation ============= */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============= Responsive ============= */
@media (max-width: 1024px) {
  .hero-grid, .about-split, .science-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding: 140px 0 80px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .prog-detail .milestones { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .container, .container-narrow { padding: 0 20px; }
  section.block { padding: 72px 0; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; padding: 56px 0 40px; }
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 18px 24px 28px;
    gap: 4px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(10,37,64,.10);
    transform: translateY(-150%);
    transition: transform .3s ease;
  }
  .main-nav.open { transform: none; }
  .main-nav a { padding: 14px 12px; border-radius: 8px; }
  .main-nav a.active::after { display: none; }
  .lang-switch { margin: 14px 12px 0 0; align-self: flex-start; }
  .hero-foot { flex-direction: column; gap: 14px; }
  .news-item { grid-template-columns: 1fr; gap: 6px; }
  .doc-card { flex-direction: column; align-items: flex-start; padding: 28px; }
  .hero-stat-row { grid-template-columns: 1fr 1fr; }
}