/* ============================================================
   VCC, Components
   Navigation, glass cards, buttons, corner marks, badges
   ============================================================ */

/* ---------- Navigation ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  background: rgba(20, 28, 23, 0.6);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out);
}

.nav.is-scrolled {
  border-bottom-color: var(--border);
  background: rgba(20, 28, 23, 0.85);
}

.nav__inner {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--page-pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-primary);
  font-size: var(--fs-caption);
}

.nav__brand img {
  height: 28px;
  width: auto;
}

.nav__brand-sep {
  width: 1px;
  height: 18px;
  background: var(--border-strong);
}

.nav__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  color: var(--accent);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav__links a {
  font-size: var(--fs-body-sm);
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-out);
  position: relative;
  padding: 6px 2px;
}

.nav__links a:hover { color: var(--text-primary); }

.nav__links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}

.nav__links a:hover::after { transform: scaleX(1); }

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.nav__mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: background var(--dur-fast) var(--ease-out);
}

.nav__mobile-toggle:hover { background: var(--bg-glass); }

@media (max-width: 960px) {
  .nav__links,
  .nav__cta { display: none; }
  .nav__mobile-toggle { display: inline-flex; }
}

/* Mobile menu */
.nav__mobile-panel {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(20, 28, 23, 0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: var(--space-5) var(--page-pad-x);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transform: translateY(-120%);
  opacity: 0;
  transition: transform var(--dur-base) var(--ease-out),
              opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}

.nav__mobile-panel.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.nav__mobile-panel a {
  font-size: 1.25rem;
  padding: var(--space-3) 0;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  font-size: var(--fs-body-sm);
  font-weight: var(--fw-medium);
  letter-spacing: 0;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
  white-space: nowrap;
  user-select: none;
}

.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--accent);
  color: var(--ew-green-700);
  border: 1px solid var(--accent);
}

.btn--primary:hover {
  background: #8AE69F;
  border-color: #8AE69F;
  box-shadow: var(--shadow-glow);
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--small {
  padding: 8px 16px;
  font-size: var(--fs-caption);
}

.btn .arrow {
  transition: transform var(--dur-fast) var(--ease-out);
}

.btn:hover .arrow { transform: translate(2px, -2px); }

/* ---------- Glass cards ---------- */

.glass {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: border-color var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
}

.glass--hover:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.glass--accent {
  border-color: var(--border-accent);
  background: linear-gradient(180deg,
    rgba(116, 219, 139, 0.06) 0%,
    rgba(46, 63, 50, 0.45) 100%);
}

.card {
  padding: var(--space-6);
}

/* ---------- Corner mark, Helix top-right ---------- */

.corner-mark {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  opacity: 0.5;
  pointer-events: none;
}

.corner-mark img,
.corner-mark svg {
  width: 100%;
  height: 100%;
}

/* ---------- Badges, chips, tags ---------- */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.chip--accent {
  background: rgba(116, 219, 139, 0.08);
  border-color: var(--border-accent);
  color: var(--accent);
}

.chip--verified {
  background: rgba(86, 116, 241, 0.1);
  border-color: rgba(86, 116, 241, 0.3);
  color: var(--verified);
}

.chip--unverified {
  background: rgba(229, 99, 118, 0.1);
  border-color: rgba(229, 99, 118, 0.3);
  color: var(--unverified);
}

/* ---------- Dividers ---------- */

.divider {
  height: 1px;
  background: var(--border);
  width: 100%;
  margin-block: var(--space-7);
}

/* ---------- Footer ---------- */

.footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: var(--space-8) 0 var(--space-6);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-7);
  margin-bottom: var(--space-7);
}

@media (max-width: 900px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .footer__grid { grid-template-columns: 1fr; gap: var(--space-5); }
}

.footer__col h4 {
  font-size: var(--fs-caption);
  font-family: var(--font-mono);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  font-weight: var(--fw-regular);
}

.footer__col a {
  display: block;
  padding: 6px 0;
  font-size: var(--fs-body-sm);
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-out);
}

.footer__col a:hover { color: var(--accent); }

.footer__brand img { height: 32px; width: auto; margin-bottom: var(--space-4); }

.footer__mission {
  color: var(--text-muted);
  font-size: var(--fs-body-sm);
  max-width: 32ch;
}

.footer__bottom {
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--text-muted);
  font-size: var(--fs-caption);
}

.footer__disclaimer {
  margin-top: var(--space-6);
  padding: var(--space-5);
  border-radius: var(--radius-md);
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  font-size: var(--fs-caption);
  color: var(--text-muted);
  line-height: 1.55;
  max-width: 100ch;
}

.footer__disclaimer strong { color: var(--text-secondary); font-weight: var(--fw-medium); }

/* ---------- Ambient background treatments ---------- */

.bg-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(116, 219, 139, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(116, 219, 139, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.bg-glow {
  position: absolute;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
}

.bg-glow--green {
  background: radial-gradient(circle, var(--ew-green) 0%, transparent 60%);
}