/* nav.css — slim white bar, hairline bottom border, red CTA (design v2) */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.nav {
  position: relative;
  max-width: 1560px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem clamp(1rem, 2.5vw, 2rem);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.nav__brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--red);
  flex: none;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav__links a:not(.btn) {
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.nav__links a:not(.btn):hover { color: var(--red); }

.nav__links .btn {
  margin-left: 0.75rem;
  padding: 0.6rem 1.2rem;
  font-size: 0.82rem;
}

/* ---------- Areas mega-dropdown ---------- */

.nav__drop { position: relative; }

.nav__drop-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.75rem;
  border: none;
  background: none;
  border-radius: var(--radius);
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
}

.nav__drop-btn:hover { color: var(--red); }

.nav__drop-caret {
  font-size: 0.7rem;
  transition: transform 0.15s ease;
}

.nav__drop.is-open .nav__drop-caret { transform: rotate(180deg); }

.nav__drop-panel {
  display: none;
  position: absolute;
  top: calc(100% + 0.7rem);
  left: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px rgba(16, 16, 16, 0.12);
  padding: 1.25rem 1.75rem 1.5rem;
  flex-direction: column;
  width: max-content;
  min-width: 240px;
  max-height: min(70vh, 560px);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.nav__drop.is-open .nav__drop-panel { display: flex; }

.nav__drop-label {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--red);
  margin: 0.9rem 0 0.4rem;
}

.nav__drop-panel .nav__drop-label:first-child { margin-top: 0; }

.nav__drop-panel a {
  padding: 0.28rem 0;
  text-decoration: none;
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
}

.nav__drop-panel a:hover { color: var(--red); }

.nav__drop-all {
  margin-top: 0.9rem;
  font-weight: 700 !important;
  color: var(--red) !important;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav__toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (max-width: 900px) {
  .nav__toggle { display: block; position: relative; z-index: 80; }

  /* Full-height drawer, 90% width, slides in from the right; the bar stays visible */
  .nav__links {
    position: fixed;
    top: 3.75rem; /* clears the sticky bar */
    right: 0;
    height: calc(100vh - 3.75rem);
    height: calc(100dvh - 3.75rem);
    width: 90%;
    z-index: 70;
    background: var(--card);
    border-left: 1px solid var(--line-dark);
    box-shadow: -20px 0 60px rgba(16, 16, 16, 0.18);
    flex-direction: column;
    align-items: stretch;
    padding: 1.25rem clamp(1.25rem, 4vw, 2rem) 2rem;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.3s ease, visibility 0.3s ease;
  }

  .nav.is-open .nav__links {
    transform: translateX(0);
    visibility: visible;
  }

  .nav__links a:not(.btn) { padding: 0.85rem 0; border-radius: 0; border-bottom: 1px solid var(--line); }

  /* Dropdown becomes an inline expanding block; the LIST scrolls, the menu stays put */
  .nav__drop { position: static; }

  .nav__drop-btn {
    width: 100%;
    justify-content: space-between;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }

  .nav__drop-panel {
    position: static;
    width: 100%;
    border: none;
    box-shadow: none;
    border-radius: var(--radius);
    background: var(--bg);
    margin: 0.5rem 0;
    padding: 0.75rem 1rem;
    max-height: 16rem;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }

  .nav__drop-panel a { border-bottom: none !important; padding: 0.3rem 0 !important; }

  .nav__links .btn {
    margin: 0.9rem 0 0;
    justify-content: center;
  }

  .nav.is-open .nav__toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.is-open .nav__toggle-bar:nth-child(2) { opacity: 0; }
  .nav.is-open .nav__toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* no page scroll behind the open drawer */
  body.nav-open { overflow: hidden; }
}