/* Shared mobile nav. Hamburger sits in the topbar; drawer lives on <body>. */

/* Top-nav Sign in pill (used on every page) */
.nav-signin {
  display: inline-flex;
  align-items: center;
  background: var(--foreground);
  color: #fff;
  border: 0;
  font: inherit;
  font-weight: 700;
  font-size: 14px;
  border-radius: 999px;
  padding: 8px 18px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease-out, transform 0.1s ease-out;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.12);
}
.nav-signin:hover { background: #1e293b; }
.nav-signin:active { transform: scale(0.98); }

.nav-hamburger {
  display: none;
  width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 10px;
  background: #fff; cursor: pointer; padding: 0;
  align-items: center; justify-content: center; position: relative; z-index: 1002;
  transition: border-color 0.2s ease-out;
}
.nav-hamburger:hover { border-color: rgba(0, 233, 139, 0.4); }
.nav-hamburger span, .nav-hamburger span::before, .nav-hamburger span::after {
  display: block; width: 18px; height: 2px; background: var(--foreground); border-radius: 2px;
  position: relative; transition: transform 0.25s ease-out, opacity 0.2s ease-out, top 0.25s ease-out;
}
.nav-hamburger span::before, .nav-hamburger span::after { content: ""; position: absolute; left: 0; }
.nav-hamburger span::before { top: -6px; }
.nav-hamburger span::after  { top:  6px; }
body.nav-open .nav-hamburger span { background: transparent; }
body.nav-open .nav-hamburger span::before { top: 0; transform: rotate(45deg); background: var(--foreground); }
body.nav-open .nav-hamburger span::after  { top: 0; transform: rotate(-45deg); background: var(--foreground); }

.nav-backdrop {
  display: none; position: fixed; inset: 0; background: rgba(15, 23, 42, 0.35);
  z-index: 1000; opacity: 0; transition: opacity 0.25s ease-out;
}
body.nav-open .nav-backdrop { display: block; opacity: 1; }

/* Drawer: hidden on desktop, slides in from the right on mobile */
.nav-drawer {
  display: none;
  position: fixed; top: 0; right: 0; bottom: 0;
  width: min(88vw, 360px);
  background: #fff; border-left: 1px solid var(--line);
  padding: 84px 24px 32px;
  flex-direction: column; align-items: stretch; gap: 4px;
  font-size: 16px;
  transform: translateX(100%); transition: transform 0.28s ease-out;
  z-index: 1001; overflow-y: auto;
  box-shadow: -20px 0 60px rgba(15, 23, 42, 0.12);
}
.nav-drawer a {
  display: block; padding: 14px 8px;
  border-bottom: 1px solid var(--line);
  color: var(--foreground); font-weight: 600;
  text-decoration: none;
}
.nav-drawer a[aria-current] { color: var(--accent-dark); }
.nav-drawer .nav-signin {
  width: 100%; justify-content: center; margin-top: 20px;
  padding: 14px 20px; font-size: 16px;
}

@media (max-width: 780px) {
  .nav-hamburger { display: inline-flex; }
  .topnav, .site-links { display: none !important; }
  .nav-drawer { display: flex; }
  body.nav-open .nav-drawer { transform: translateX(0); }
  .topbar-inner, .site-nav-inner { padding: 12px 20px; }
}
