/* ============================================================
   Stratavex — Shared chrome components
   Loaded after tokens.css + base.css. Navbar, section headers,
   buttons, footer, card-grid primitive, divider, reveal, type
   utilities, shared keyframes. Linked as /components.css.
   Page-unique sections live in each page's own stylesheet.
   ============================================================ */

/* ─── Corner brackets ─── */
.corner-brackets { position: fixed; inset: 0; pointer-events: none; z-index: 2; }
.bracket { position: absolute; width: 22px; height: 22px;
  border-color: var(--bracket-stroke); border-style: solid; border-width: 0; }
.bracket.tl { top: 18px; left: 18px; border-top-width: 1px; border-left-width: 1px; }
.bracket.tr { top: 18px; right: 18px; border-top-width: 1px; border-right-width: 1px; }
.bracket.bl { bottom: 18px; left: 18px; border-bottom-width: 1px; border-left-width: 1px; }
.bracket.br { bottom: 18px; right: 18px; border-bottom-width: 1px; border-right-width: 1px; }

/* ─── Navbar ─── */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 18px var(--gutter); display: flex; align-items: center;
  justify-content: space-between; gap: 16px;
  background: var(--nav-bg);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  border-bottom: 1px solid var(--nav-border);
  transition: padding 0.3s ease, background 0.3s ease; }
.navbar.scrolled { padding: 12px var(--gutter); background: var(--nav-bg-scroll); }
.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 0.8rem; font-weight: 400; color: var(--text-secondary);
  letter-spacing: 0.08em; text-transform: uppercase; transition: color 0.3s ease;
  position: relative; padding: 4px 0; }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px; background: var(--accent); transition: width 0.3s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta { padding: 10px 24px; background: transparent; color: var(--accent);
  border-radius: var(--radius-xs); font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; transition: all 0.3s ease;
  border: 1px solid var(--accent-dim); cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px; }
.nav-cta:hover { background: var(--accent); color: var(--bg-primary); }
.nav-cta svg { width: 12px; height: 12px; transition: transform 0.3s ease; }
.nav-cta:hover svg { transform: translateX(3px); }

/* ─── Section header trio ─── */
.section-tag { font-family: var(--font-body); font-size: 0.68rem; text-transform: uppercase;
  letter-spacing: 0.2em; color: var(--accent); margin-bottom: 24px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 12px; }
.section-tag::before { content: ''; width: 24px; height: 1px; background: var(--accent-dim); }
.section-title { font-family: var(--font-display); font-size: var(--fs-h2); font-weight: 700;
  line-height: 1.1; letter-spacing: -0.03em; color: var(--text-white); max-width: 880px; }
.section-title .accent-period, .section-title .t-period { color: var(--accent); }
.section-desc { font-family: var(--font-body); font-size: var(--fs-lead);
  color: var(--text-secondary); line-height: 1.7; max-width: 640px; margin-top: 24px; }

/* ─── Buttons ─── */
.btn-primary { display: inline-flex; align-items: center; gap: 12px; padding: 16px 36px;
  background: var(--accent); color: var(--bg-primary); border-radius: var(--radius-xs);
  font-size: 0.82rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  border: 1px solid var(--accent); transition: all 0.3s ease; cursor: pointer; }
.btn-primary:hover { background: transparent; color: var(--accent);
  transform: translateY(-1px); box-shadow: 0 8px 24px rgba(91,163,192,0.15); }
.btn-primary svg { width: 14px; height: 14px; transition: transform 0.3s ease; }
.btn-primary:hover svg { transform: translateX(4px); }
.btn-secondary { display: inline-flex; align-items: center; gap: 10px; font-size: 0.8rem;
  color: var(--text-secondary); letter-spacing: 0.08em; text-transform: uppercase;
  font-weight: 500; padding: 16px 0; transition: color 0.3s ease; cursor: pointer; }
.btn-secondary:hover { color: var(--accent); }
.btn-secondary svg { width: 12px; height: 12px; transition: transform 0.3s ease; }
.btn-secondary:hover svg { transform: translateX(3px); }

/* ─── Footer ─── */
.footer { padding: var(--section-y) var(--gutter) 3rem; border-top: 1px solid var(--border);
  max-width: var(--container-max); margin-inline: auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px; margin-bottom: 60px; }
.footer-brand .logo { margin-bottom: 20px; }
.footer-brand p { font-size: 0.9rem; color: var(--text-secondary);
  line-height: 1.7; max-width: 320px; margin-bottom: 20px; }
.footer-col h4 { font-family: var(--font-display); font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: 0.18em; color: var(--text-muted); margin-bottom: 24px; font-weight: 500; }
.footer-col a { display: block; font-size: 0.88rem; color: var(--text-secondary);
  padding: 7px 0; transition: color 0.3s ease; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center;
  padding-top: 32px; border-top: 1px solid var(--border); gap: 24px; flex-wrap: wrap;
  max-width: var(--container-max); margin-inline: auto; }
.footer-bottom p { font-size: 0.75rem; color: var(--text-muted); letter-spacing: 0.04em; }
.footer-bottom-links { display: flex; gap: 28px; }
.footer-bottom-links a { font-size: 0.75rem; color: var(--text-muted);
  transition: color 0.3s ease; letter-spacing: 0.04em; }
.footer-bottom-links a:hover { color: var(--text-secondary); }

/* ─── Card-grid primitive (for template + future sections) ─── */
.card-grid { display: grid; gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }
.card-surface { background: var(--bg-secondary); transition: background 0.4s ease; position: relative; }
.card-surface:hover { background: var(--bg-card); }
.card-surface--accent-top::before { content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease; }
.card-surface--accent-top:hover::before { transform: scaleX(1); }

/* ─── Related-products rail (shared across product pages) ─── */
.related-rail { max-width: var(--container-max); margin-inline: auto;
  padding: var(--section-y, 96px) var(--gutter, 24px); }
.related-rail .related-head { margin-bottom: 40px; }
.related-rail .section-tag { font-family: var(--font-body); font-size: 0.68rem;
  text-transform: uppercase; letter-spacing: 0.22em; color: var(--accent);
  display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.related-rail .section-tag::before { content: ''; width: 24px; height: 1px; background: var(--accent-dim); }
.related-rail h2 { font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem); letter-spacing: -0.03em; color: var(--text-white); }
.related-rail h2 .accent-period { color: var(--accent); }
.related-card { display: flex; flex-direction: column; padding: 32px 28px; text-decoration: none; }
.related-card .related-name { font-family: var(--font-display); font-weight: 700;
  font-size: 1.5rem; letter-spacing: -0.02em; color: var(--text-white); margin-bottom: 10px; }
.related-card .related-name .accent { color: var(--accent); }
.related-card .related-tagline { font-family: var(--font-body); font-size: 0.95rem;
  color: var(--text-secondary); line-height: 1.55; flex: 1; }
.related-card .related-arrow { font-family: var(--font-mono); font-size: 0.78rem;
  letter-spacing: 0.08em; color: var(--text-muted); margin-top: 24px;
  transition: color 0.3s ease, transform 0.3s ease; }
.related-card:hover .related-arrow { color: var(--accent); transform: translateX(4px); }
@media (max-width: 860px) {
  .related-rail .card-grid--3 { grid-template-columns: 1fr; }
}

/* ─── Divider + reveal ─── */
.divider { height: 1px; background: var(--border); max-width: var(--container-max); margin-inline: auto; }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─── Semantic type utilities (relocated from colors_and_type.css) ─── */
.t-hero, h1.t-hero { font-family: var(--font-display); font-size: clamp(3.5rem, 8vw, 7.5rem);
  font-weight: 700; line-height: 0.95; letter-spacing: -0.04em; color: var(--text-white); }
.t-section-title, h2.t-section-title { font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 700; line-height: 1.1;
  letter-spacing: -0.03em; color: var(--text-white); }
.t-card-title, h3.t-card-title { font-family: var(--font-display); font-size: 1.15rem;
  font-weight: 600; letter-spacing: -0.01em; color: var(--text-white); }
.t-stat-number { font-family: var(--font-display); font-size: 2.8rem; font-weight: 700;
  letter-spacing: -0.02em; line-height: 1; color: var(--text-white); }
.t-stat-number .plus, .t-stat-number .pct { color: var(--accent); }
.t-stat-label { font-family: var(--font-body); font-size: 0.72rem; font-weight: 400;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-secondary); }
.t-section-tag { font-family: var(--font-body); font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent);
  display: inline-flex; align-items: center; gap: 10px; }
.t-section-tag::before { content: ''; width: 24px; height: 1px; background: var(--accent-dim); }
.t-nav-link { font-family: var(--font-body); font-size: 0.82rem; font-weight: 400;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-secondary); }
.t-body { font-family: var(--font-body); font-size: 1rem; font-weight: 400;
  line-height: 1.7; color: var(--text-secondary); }
.t-caption { font-family: var(--font-body); font-size: 0.88rem; line-height: 1.6; color: var(--text-secondary); }
.t-mono, code, kbd, pre, samp { font-family: var(--font-mono); font-size: 0.78rem; }
.t-period { color: var(--accent); }
.t-wordmark { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text-primary); }
.t-wordmark .v { color: var(--accent); }
.t-outline { -webkit-text-stroke: 1.5px var(--text-primary); color: transparent; }

/* ─── Shared keyframes ─── */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(0.85); } }
@keyframes drift { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(30px, -40px); } }

/* ─── Contact modal ─── */
/* Shared by the React landing (ContactModal.jsx) and static product pages
   (contact.js). Class names are identical across both. */
.modal-backdrop { position: fixed; inset: 0; background: rgba(9,14,24,0.85);
  backdrop-filter: blur(8px); z-index: 2000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.3s ease; }
.modal-backdrop.open { opacity: 1; pointer-events: auto; }
.modal { background: var(--bg-secondary); border: 1px solid var(--border-light);
  border-radius: var(--radius-md); width: min(520px, 92vw); padding: 40px 36px;
  position: relative; transform: translateY(20px); transition: transform 0.3s ease; }
.modal-backdrop.open .modal { transform: translateY(0); }
.modal h3 { font-family: var(--font-display); font-size: 1.4rem; color: var(--text-white);
  letter-spacing: -0.02em; margin-bottom: 8px; }
.modal p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 24px; }
.modal label { display: block; font-size: 0.68rem; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--text-muted); margin-bottom: 8px; margin-top: 16px; }
.modal input, .modal textarea { width: 100%; background: var(--bg-primary);
  border: 1px solid var(--border); color: var(--text-primary);
  border-radius: var(--radius-xs); padding: 12px 14px; font: inherit; font-size: 0.9rem;
  outline: none; transition: border-color 0.3s ease; }
.modal input:focus, .modal textarea:focus { border-color: var(--accent-dim); }
.modal textarea { resize: vertical; min-height: 90px; }
.modal-close { position: absolute; top: 16px; right: 18px;
  width: 28px; height: 28px; display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); border-radius: 4px; transition: all 0.3s ease; }
.modal-close:hover { color: var(--accent); background: var(--accent-surface); }
.modal-success { padding: 24px 0; text-align: center; color: var(--text-primary); font-size: 0.95rem; }
.modal-success .check { color: var(--accent); font-size: 2rem; display: block; margin-bottom: 12px; }