/* ============================================================
   AERIAL LABS — Shared Stylesheet
   Design language: aviusaero.com (Barlow Condensed, card grids,
   ALL-CAPS tracked headings) — LIGHT MODE edition
   Dark mode navy (#0a0f2e) becomes text; white becomes surface.
   Teal accent deepened to #006E8C for WCAG AA on white.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@300;400;500;600;700;800;900&family=Barlow:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400&display=swap');

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Barlow', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ── Design Tokens — LIGHT MODE ─────────────────────────── */
:root {
  --bg:            #ffffff;
  --bg-2:          #f0f5fc;
  --bg-hero:       #e8f3fc;
  --bg-card:       #ffffff;
  --bg-card-hover: rgba(0, 110, 140, 0.05);
  --bg-footer:     #0a0f2e;

  --accent:        #006E8C;
  --accent-vivid:  #00AECF;
  --accent-warm:   #B45309;

  --text:          #0a0f2e;
  --text-dim:      rgba(10,15,46,0.62);
  --text-dimmer:   rgba(10,15,46,0.38);
  --text-on-dark:  #ffffff;

  --border:        rgba(10,15,46,0.1);
  --border-accent: rgba(0,174,207,0.35);

  --shadow-sm:  0 1px 4px rgba(10,15,46,0.06), 0 2px 12px rgba(10,15,46,0.04);
  --shadow-md:  0 4px 16px rgba(10,15,46,0.08), 0 1px 4px rgba(10,15,46,0.04);
  --shadow-lg:  0 8px 32px rgba(10,15,46,0.1),  0 2px 8px  rgba(10,15,46,0.06);

  --max-w:      1200px;
  --pad-x:      clamp(24px, 5vw, 80px);
  --section-y:  100px;
  --card-r:     12px;
  --nav-h:      68px;
  --font-head:  'Barlow Condensed', 'Arial Narrow', sans-serif;
  --font-body:  'Barlow', Arial, sans-serif;
}

/* ── Navigation ─────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  padding: 0 var(--pad-x);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.nav__inner {
  width: 100%; max-width: var(--max-w);
  margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}
.nav__logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-head);
  font-size: 1.35rem; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text);
}
.nav__logo span { color: var(--accent); }
.nav__logo svg { width: 32px; height: 32px; }
.nav__links {
  display: flex; align-items: center; gap: 32px;
  list-style: none;
}
.nav__links a {
  font-family: var(--font-head);
  font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.2s;
  position: relative;
}
.nav__links a::after {
  content: ''; position: absolute; left: 0; bottom: -4px;
  width: 0; height: 2px; background: var(--accent);
  transition: width 0.2s;
}
.nav__links a:hover, .nav__links a.active { color: var(--text); }
.nav__links a:hover::after, .nav__links a.active::after { width: 100%; }
.nav__cta {
  padding: 8px 20px;
  border: 1.5px solid var(--accent);
  border-radius: 4px;
  font-family: var(--font-head);
  font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent);
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}
.nav__cta:hover { background: var(--accent); color: #fff; }

/* ── Hero ───────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: calc(var(--nav-h) + 60px) var(--pad-x) 80px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-hero) 0%, #d6ecfa 40%, #f0f8ff 100%);
}
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg img {
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0.1; mix-blend-mode: multiply; filter: grayscale(0.4);
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(232,243,252,0.95) 40%, rgba(232,243,252,0.6) 100%);
}
.hero__grid-lines {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(10,15,46,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,15,46,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}
.hero__content {
  position: relative; z-index: 2;
  max-width: var(--max-w); width: 100%; margin: 0 auto;
}
.hero__eyebrow {
  font-family: var(--font-head);
  font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 20px;
}
.hero__eyebrow::before {
  content: ''; display: inline-block;
  width: 28px; height: 2px; background: var(--accent);
  vertical-align: middle; margin-right: 12px;
}
.hero__title {
  font-family: var(--font-head);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 900; line-height: 0.94;
  letter-spacing: -0.01em; text-transform: uppercase;
  color: var(--text); margin-bottom: 24px;
}
.hero__title em { font-style: normal; color: var(--accent); }
.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 400; color: var(--text-dim);
  max-width: 560px; line-height: 1.65; margin-bottom: 16px;
}
.hero__tagline {
  font-family: var(--font-head);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600; color: var(--accent-warm);
  letter-spacing: 0.06em; margin-bottom: 40px;
}
.hero__pills { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.pill {
  padding: 6px 16px; border: 1.5px solid var(--border); border-radius: 100px;
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.06em;
  color: var(--text-dim); background: rgba(255,255,255,0.7); white-space: nowrap;
}
.hero__btns { display: flex; gap: 16px; flex-wrap: wrap; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-head);
  font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  border-radius: 4px; cursor: pointer; transition: all 0.2s;
  border: 1.5px solid transparent;
}
.btn--primary { background: var(--text); color: #fff; border-color: var(--text); }
.btn--primary:hover { background: var(--accent); border-color: var(--accent); }
.btn--outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }
.btn--accent { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn--accent:hover { background: #005570; border-color: #005570; }

/* ── Section ────────────────────────────────────────────── */
.section { padding: var(--section-y) var(--pad-x); position: relative; }
.section--alt { background: var(--bg-2); }
.section__inner { max-width: var(--max-w); margin: 0 auto; }
.section__label {
  font-family: var(--font-head);
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
  display: flex; align-items: center; gap: 12px;
}
.section__label::before { content: ''; width: 20px; height: 2px; background: var(--accent); flex-shrink: 0; }
.section__title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 800; line-height: 1;
  letter-spacing: -0.01em; text-transform: uppercase;
  color: var(--text); margin-bottom: 20px;
}
.section__lead { font-size: 1.05rem; color: var(--text-dim); max-width: 620px; line-height: 1.7; margin-bottom: 60px; }

/* ── Cards ──────────────────────────────────────────────── */
.cards { display: grid; gap: 24px; }
.cards--2 { grid-template-columns: repeat(auto-fill, minmax(500px, 1fr)); }
.cards--3 { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.cards--4 { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.card {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--card-r);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s, transform 0.2s;
  position: relative; overflow: hidden;
}
.card:hover {
  border-color: var(--accent-vivid);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 3px; height: 0; background: var(--accent-vivid);
  transition: height 0.3s;
  border-radius: var(--card-r) 0 0 var(--card-r);
}
.card:hover::before { height: 100%; }
.card__tag {
  font-family: var(--font-head); font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px;
}
.card__title {
  font-family: var(--font-head); font-size: 1.2rem; font-weight: 700;
  text-transform: uppercase; line-height: 1.2; color: var(--text); margin-bottom: 12px;
}
.card__body { font-size: 0.88rem; color: var(--text-dim); line-height: 1.65; margin-bottom: 20px; }
.card__meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.card__meta-item { font-size: 0.75rem; color: var(--text-dimmer); letter-spacing: 0.04em; display: flex; align-items: center; gap: 5px; }
.card__link {
  font-family: var(--font-head); font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent);
  display: inline-flex; align-items: center; gap: 6px; transition: gap 0.2s;
}
.card__link:hover { gap: 12px; }
.card__link::after { content: '→'; }

/* ── Timeline ───────────────────────────────────────────── */
.timeline { position: relative; padding-left: 32px; }
.timeline::before {
  content: ''; position: absolute; left: 8px; top: 0; bottom: 0;
  width: 1px; background: var(--border);
}
.timeline__item { position: relative; margin-bottom: 48px; }
.timeline__item::before {
  content: ''; position: absolute; left: -28px; top: 6px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--bg-2); border: 2px solid var(--accent);
}
.timeline__date {
  font-family: var(--font-head); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px;
}
.timeline__org { font-size: 0.8rem; color: var(--text-dimmer); margin-bottom: 4px; letter-spacing: 0.04em; }
.timeline__role {
  font-family: var(--font-head); font-size: 1.1rem; font-weight: 700;
  text-transform: uppercase; color: var(--text); margin-bottom: 10px;
}
.timeline__desc { font-size: 0.87rem; color: var(--text-dim); line-height: 1.65; max-width: 540px; }

/* ── Metrics ────────────────────────────────────────────── */
.metrics {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  border: 1.5px solid var(--border); border-radius: var(--card-r);
  overflow: hidden; margin: 60px 0; box-shadow: var(--shadow-sm);
}
.metric {
  background: var(--bg-card); padding: 36px 28px; text-align: center;
  border-right: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.metric:last-child { border-right: none; }
.metric__num {
  font-family: var(--font-head); font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 900; color: var(--accent); line-height: 1; margin-bottom: 8px;
}
.metric__label {
  font-family: var(--font-head); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-dimmer); line-height: 1.4;
}

/* ── Logo Strip ─────────────────────────────────────────── */
.logo-strip {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 40px; padding: 48px 0;
}
.logo-strip__item {
  opacity: 0.35; transition: opacity 0.2s; filter: grayscale(1);
  font-family: var(--font-head); font-size: 0.85rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--text);
}
.logo-strip__item:hover { opacity: 0.75; filter: none; }

/* ── Patent Card ────────────────────────────────────────── */
.patent-card {
  background: var(--bg-card); border: 1.5px solid var(--border); border-radius: var(--card-r);
  padding: 40px; margin-bottom: 24px; position: relative; overflow: hidden;
  box-shadow: var(--shadow-sm); transition: border-color 0.25s, box-shadow 0.25s;
}
.patent-card:hover { border-color: var(--accent-vivid); box-shadow: var(--shadow-md); }
.patent-card__number {
  font-family: var(--font-head); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 12px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.patent-card__status {
  padding: 3px 10px; background: rgba(0,110,140,0.08); border: 1px solid var(--border-accent);
  border-radius: 100px; font-size: 0.68rem; color: var(--accent);
}
.patent-card__title {
  font-family: var(--font-head); font-size: clamp(1rem, 2vw, 1.4rem); font-weight: 800;
  text-transform: uppercase; color: var(--text); line-height: 1.2; margin-bottom: 16px;
}
.patent-card__desc { font-size: 0.88rem; color: var(--text-dim); line-height: 1.65; margin-bottom: 20px; }
.patent-card__details { display: flex; flex-wrap: wrap; gap: 16px; }
.patent-card__detail { font-size: 0.78rem; color: var(--text-dimmer); letter-spacing: 0.04em; }
.patent-card__detail strong { color: var(--text-dim); display: block; font-weight: 600; margin-bottom: 2px; }
.patent-card__watermark {
  position: absolute; right: -20px; bottom: -30px;
  font-family: var(--font-head); font-size: 9rem; font-weight: 900;
  color: rgba(0,110,140,0.06); line-height: 1; pointer-events: none; user-select: none;
}

/* ── Page Hero ──────────────────────────────────────────── */
.page-hero {
  padding: calc(var(--nav-h) + 80px) var(--pad-x) 80px;
  background: linear-gradient(to bottom, var(--bg-2) 0%, var(--bg) 100%);
  position: relative; overflow: hidden; border-bottom: 1px solid var(--border);
}
.page-hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(10,15,46,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,15,46,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.page-hero__content { position: relative; z-index: 2; max-width: var(--max-w); margin: 0 auto; }
.page-hero__eyebrow {
  font-family: var(--font-head); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.3em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px;
  display: flex; align-items: center; gap: 12px;
}
.page-hero__eyebrow::before { content: ''; width: 24px; height: 2px; background: var(--accent); }
.page-hero__title {
  font-family: var(--font-head); font-size: clamp(2.5rem, 6vw, 5.5rem);
  font-weight: 900; text-transform: uppercase; line-height: 0.94;
  color: var(--text); margin-bottom: 20px;
}
.page-hero__subtitle { font-size: 1.05rem; color: var(--text-dim); max-width: 540px; line-height: 1.65; }

/* ── Highlight box ───────────────────────────────────────── */
.highlight-box {
  background: rgba(0,110,140,0.05); border: 1.5px solid rgba(0,174,207,0.25);
  border-radius: 8px; padding: 16px 20px; margin-bottom: 16px;
  display: flex; align-items: flex-start; gap: 12px;
}
.highlight-box__icon { width: 20px; height: 20px; margin-top: 2px; flex-shrink: 0; color: var(--accent); }
.highlight-box__text { font-size: 0.88rem; color: var(--text-dim); line-height: 1.6; }
.highlight-box__text strong { color: var(--text); }

/* ── Glow dot ────────────────────────────────────────────── */
.glow-dot {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-vivid); margin-right: 8px; vertical-align: middle;
}

/* ── CTA strip ───────────────────────────────────────────── */
.cta-strip { background: var(--bg-footer); padding: 64px var(--pad-x); }
.cta-strip__inner {
  max-width: var(--max-w); margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 32px;
}
.cta-strip__title {
  font-family: var(--font-head); font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 800; text-transform: uppercase; color: var(--text-on-dark); margin-bottom: 10px;
}
.cta-strip__sub { color: rgba(255,255,255,0.6); font-size: 0.95rem; max-width: 500px; line-height: 1.65; }
.cta-strip .btn--primary {
  background: var(--accent-vivid); color: var(--text); border-color: var(--accent-vivid);
}
.cta-strip .btn--primary:hover { background: #fff; border-color: #fff; color: var(--text); }
.cta-strip .btn--outline { color: rgba(255,255,255,0.75); border-color: rgba(255,255,255,0.3); }
.cta-strip .btn--outline:hover { border-color: #fff; color: #fff; }

/* ── Footer ─────────────────────────────────────────────── */
.footer {
  background: var(--bg-footer); border-top: 1px solid rgba(255,255,255,0.08);
  padding: 64px var(--pad-x) 40px;
}
.footer__inner {
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 60px;
}
.footer__logo {
  font-family: var(--font-head); font-size: 1.3rem; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-on-dark); margin-bottom: 14px;
}
.footer__logo span { color: var(--accent-vivid); }
.footer__tagline { font-size: 0.85rem; color: rgba(255,255,255,0.45); line-height: 1.6; max-width: 240px; }
.footer__col-title {
  font-family: var(--font-head); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent-vivid); margin-bottom: 20px;
}
.footer__links { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer__links a { font-size: 0.87rem; color: rgba(255,255,255,0.45); transition: color 0.2s; }
.footer__links a:hover { color: var(--text-on-dark); }
.footer__bottom {
  max-width: var(--max-w); margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid rgba(255,255,255,0.08); padding-top: 32px; gap: 20px; flex-wrap: wrap;
}
.footer__copy { font-size: 0.78rem; color: rgba(255,255,255,0.3); letter-spacing: 0.04em; }
.footer__socials { display: flex; gap: 20px; }
.footer__socials a {
  font-size: 0.78rem; color: rgba(255,255,255,0.35); letter-spacing: 0.08em;
  font-family: var(--font-head); text-transform: uppercase; transition: color 0.2s;
}
.footer__socials a:hover { color: var(--accent-vivid); }

/* ── Divider ─────────────────────────────────────────────── */
.divider { height: 1px; background: var(--border); margin: 0 var(--pad-x); }

/* ── Project card large ──────────────────────────────────── */
.project-card-large {
  background: var(--bg-card); border: 1.5px solid var(--border); border-radius: var(--card-r);
  overflow: hidden; margin-bottom: 32px; box-shadow: var(--shadow-sm);
  transition: border-color 0.25s, box-shadow 0.25s;
}
.project-card-large:hover { border-color: var(--accent-vivid); box-shadow: var(--shadow-lg); }
.project-card-large__media {
  width: 100%; height: 260px; overflow: hidden;
  background: linear-gradient(135deg, var(--bg-2), #d6eaf8); position: relative;
}
.project-card-large__media img { width: 100%; height: 100%; object-fit: cover; opacity: 0.55; }
.project-card-large__media-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(240,245,252,0.85) 100%);
}
.project-card-large__body { padding: 32px; }
.project-card-large__header {
  display: flex; justify-content: space-between; align-items: flex-start;
  flex-wrap: wrap; gap: 12px; margin-bottom: 16px;
}
.project-card-large__title {
  font-family: var(--font-head); font-size: 1.6rem; font-weight: 800;
  text-transform: uppercase; color: var(--text); line-height: 1.1;
}
.project-card-large__desc { font-size: 0.92rem; color: var(--text-dim); line-height: 1.7; margin-bottom: 20px; }

/* ── Status badges ───────────────────────────────────────── */
.project-status {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 100px;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; font-family: var(--font-head);
}
.project-status--live {
  background: rgba(0,110,140,0.08); border: 1.5px solid rgba(0,174,207,0.3); color: var(--accent);
}
.project-status--live::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent-vivid);
}
.project-status--research {
  background: rgba(180,83,9,0.08); border: 1.5px solid rgba(180,83,9,0.25); color: var(--accent-warm);
}
.project-status--research::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent-warm); }

/* ── Tag row ─────────────────────────────────────────────── */
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.tag {
  padding: 4px 12px; border-radius: 4px; background: var(--bg-2);
  border: 1px solid var(--border); font-size: 0.72rem; color: var(--text-dim); letter-spacing: 0.06em;
}

/* ── Accolades / lineage eras ─────────────────────────────── */
.era-banner {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: 12px 24px; padding: 24px 28px; margin-bottom: 48px;
  background: linear-gradient(135deg, rgba(0,110,140,0.07), rgba(0,174,207,0.04));
  border: 1.5px solid var(--border-accent); border-radius: var(--card-r);
}
.era-banner__title {
  font-family: var(--font-head); font-size: 1.35rem; font-weight: 800;
  text-transform: uppercase; color: var(--text); line-height: 1.1;
}
.era-banner__dates {
  font-family: var(--font-head); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent);
}
.era-banner__desc { width: 100%; font-size: 0.9rem; color: var(--text-dim); line-height: 1.65; max-width: 760px; }
.timeline__links { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 12px; }
.timeline__link {
  font-family: var(--font-head); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent);
  border-bottom: 1px solid rgba(0,110,140,0.25); padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.timeline__link:hover { color: var(--accent-vivid); border-color: var(--accent-vivid); }
.timeline__note {
  display: inline-block; margin-top: 8px; font-size: 0.78rem;
  color: var(--text-dimmer); font-style: italic;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .cards--2, .cards--3, .cards--4 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  :root { --section-y: 64px; }
  .nav__links { display: none; }
  .footer__inner { grid-template-columns: 1fr; }
  .hero__title { font-size: clamp(2.5rem, 12vw, 4rem); }
  .cta-strip__inner { flex-direction: column; }
}