/* === Floating Glassmorphic Navbar (iOS-style) === */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  pointer-events: none;
}

.nav-inner {
  max-width: 960px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 52px;
  padding: 0 0.5rem 0 1rem;
  background: rgba(18, 18, 28, 0.55);
  backdrop-filter: blur(30px) saturate(200%);
  -webkit-backdrop-filter: blur(30px) saturate(200%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 100px;
  box-shadow:
    0 4px 24px rgba(0,0,0,0.35),
    0 0 0 1px rgba(255,255,255,0.03) inset,
    0 1px 0 rgba(255,255,255,0.06) inset;
  pointer-events: all;
  transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
}

/* Glow ring on scroll (add .scrolled via JS if desired) */
.nav-inner:hover {
  border-color: rgba(var(--accent-color-rgb),0.15);
  box-shadow:
    0 8px 32px rgba(0,0,0,0.4),
    0 0 0 1px rgba(var(--accent-color-rgb),0.06) inset,
    0 0 40px rgba(var(--accent-color-rgb),0.04);
}

.nav-brand a {
  display: flex; align-items: center; text-decoration: none; gap: 0.5rem;
}
.nav-brand img { max-height: 28px; width: auto; filter: brightness(1.1); }
.nav-brand .brand-text {
  color: var(--text-primary); font-weight: 700; font-size: 1rem;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex; align-items: center; gap: 0.15rem;
}

.nav-link {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  border-radius: 100px;
  color: rgba(255,255,255,0.5);
  text-decoration: none; font-size: 0.82rem; font-weight: 500;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.07);
}
.nav-link .nav-icon {
  font-size: 0.75rem; color: var(--accent-color); opacity: 0.6;
  transition: opacity 0.25s;
}
.nav-link:hover .nav-icon { opacity: 1; }

/* User dropdown */
.nav-user {
  position: relative; display: flex; align-items: center;
}
.nav-user-btn {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.25rem 0.65rem 0.25rem 0.25rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 100px;
  cursor: pointer; transition: all 0.25s ease;
  color: rgba(255,255,255,0.6); font-size: 0.82rem;
  text-decoration: none;
}
.nav-user-btn:hover {
  border-color: rgba(var(--accent-color-rgb),0.25);
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}
.nav-user-btn .user-avatar {
  width: 28px; height: 28px; border-radius: 50%;
  border: 2px solid rgba(var(--accent-color-rgb),0.35);
}
.nav-user-btn .user-icon {
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(var(--accent-color-rgb),0.15);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-color); font-size: 0.7rem;
}

.nav-dropdown {
  position: absolute; top: calc(100% + 10px); right: 0;
  min-width: 190px; padding: 0.4rem;
  background: rgba(18,18,28,0.85);
  backdrop-filter: blur(30px) saturate(200%);
  -webkit-backdrop-filter: blur(30px) saturate(200%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.03) inset;
  opacity: 0; visibility: hidden;
  transform: translateY(-6px) scale(0.97);
  transition: all 0.2s cubic-bezier(0.4,0,0.2,1);
}
.nav-user:hover .nav-dropdown,
.nav-user:focus-within .nav-dropdown {
  opacity: 1; visibility: visible;
  transform: translateY(0) scale(1);
}
.nav-dropdown a {
  display: flex; align-items: center; gap: 0.55rem;
  padding: 0.55rem 0.75rem;
  color: rgba(255,255,255,0.55);
  text-decoration: none; font-size: 0.84rem;
  border-radius: 10px;
  transition: all 0.2s ease;
}
.nav-dropdown a:hover {
  background: rgba(255,255,255,0.07);
  color: var(--text-primary);
}
.nav-dropdown a .dd-icon { color: var(--accent-color); width: 16px; text-align: center; font-size: 0.8rem; }
.nav-dropdown .divider {
  height: 1px; background: rgba(255,255,255,0.06); margin: 0.25rem 0.4rem;
}

/* Login button */
.nav-login {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.4rem 1rem;
  background: linear-gradient(135deg, rgba(var(--accent-color-rgb),0.2), rgba(var(--accent-color-rgb),0.08));
  border: 1px solid rgba(var(--accent-color-rgb),0.25);
  border-radius: 100px;
  color: var(--accent-color); font-size: 0.82rem; font-weight: 600;
  text-decoration: none;
  transition: all 0.25s ease;
}
.nav-login:hover {
  background: linear-gradient(135deg, rgba(var(--accent-color-rgb),0.3), rgba(var(--accent-color-rgb),0.15));
  box-shadow: 0 4px 20px rgba(var(--accent-color-rgb),0.2);
  color: var(--accent-color);
  transform: translateY(-1px);
}

/* Mobile burger */
.nav-burger {
  display: none; cursor: pointer;
  width: 34px; height: 34px;
  align-items: center; justify-content: center;
  border-radius: 50%;
  background: transparent; border: none;
  color: rgba(255,255,255,0.5);
  font-size: 1rem;
  transition: all 0.25s ease;
}
.nav-burger:hover { background: rgba(255,255,255,0.08); color: var(--text-primary); }

@media (max-width: 768px) {
  .nav { padding: 0.5rem 0.5rem; }
  .nav-inner { height: 48px; padding: 0 0.5rem 0 0.75rem; border-radius: 24px; }
  .nav-burger { display: flex; }
  .nav-links {
    display: none; position: fixed;
    top: 62px; left: 0.5rem; right: 0.5rem;
    flex-direction: column; padding: 0.75rem;
    background: rgba(18,18,28,0.9);
    backdrop-filter: blur(30px) saturate(200%);
    -webkit-backdrop-filter: blur(30px) saturate(200%);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.5);
    gap: 0.2rem;
    pointer-events: all;
  }
  .nav-links.active { display: flex; animation: navSlide 0.25s ease; }
  @keyframes navSlide { from { opacity:0; transform:translateY(-8px); } to { opacity:1; transform:translateY(0); } }
  .nav-link { border-radius: 12px; padding: 0.6rem 0.85rem; font-size: 0.88rem; }
  .nav-user { width: 100%; }
  .nav-user-btn { width: 100%; border-radius: 12px; padding: 0.5rem 0.75rem; }
  .nav-dropdown {
    position: static; opacity: 1; visibility: visible;
    transform: none; box-shadow: none;
    background: rgba(255,255,255,0.03);
    margin-top: 0.35rem; border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.05);
  }
  .nav-login { width: 100%; justify-content: center; border-radius: 12px; padding: 0.6rem 1rem; }
}

/* Spacer for fixed nav */
.nav + .announcement,
.nav + .main-content,
.nav + .announcement + .main-content { margin-top: 0; }
body { padding-top: 72px; }
@media (max-width: 768px) { body { padding-top: 62px; } }

/* === Footer === */
.site-footer {
  background: rgba(8,8,13,0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--glass-border);
  padding: 2rem 1.5rem 1.25rem;
  margin-top: auto;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
}
.footer-brand {
  display: flex; align-items: center; gap: 0.5rem;
  font-weight: 600; color: var(--text-primary); font-size: 1rem;
}
.footer-brand img { height: 28px; width: auto; }
.footer-links {
  display: flex; gap: 1.5rem; flex-wrap: wrap; justify-content: center;
}
.footer-links a {
  color: var(--text-muted); font-size: 0.85rem; text-decoration: none;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent-color); }
.footer-text { color: var(--text-muted); font-size: 0.8rem; text-align: center; }
.footer-text a { color: var(--accent-color); text-decoration: none; }
.footer-divider {
  width: 60px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
  border-radius: 2px;
}
.footer-copy { color: var(--text-muted); font-size: 0.75rem; opacity: 0.6; }