/* ================================================================
   SHARED NAV COMPONENT — didar.ai neobrutalist header
   Include: <link rel="stylesheet" href="nav.css" />
   Requires design tokens (--bg, --fg, --muted, --border, --accent-neon,
   --surface, --border-w, --shadow, --shadow-hover, --shadow-pressed,
   --font) to be defined in :root before this file.
   ================================================================ */

/* ---- NAV BAR ---- */
.didar-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: var(--border-w) solid var(--border);
}
.didar-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.didar-nav-logo {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.didar-nav-logo .didar-dot {
  width: 12px;
  height: 12px;
  background: var(--accent-neon);
  border: 2px solid var(--border);
  display: inline-block;
  transform: rotate(45deg);
  flex-shrink: 0;
}
.didar-nav-links {
  display: none;
  list-style: none;
  gap: 28px;
  align-items: center;
}
.didar-nav-links a {
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 0.15s;
  padding: 4px 0;
}
.didar-nav-links a:hover { color: var(--muted); }
.didar-nav-links .didar-active { color: var(--accent-neon); }
.didar-nav-cta {
  display: none;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 10px 24px;
  background: var(--surface);
  color: var(--fg);
  border: var(--border-w) solid var(--border);
  box-shadow: none;
  font-family: var(--font);
  cursor: pointer;
  transition: box-shadow 0.15s, transform 0.15s;
}
.didar-nav-cta:hover {
  box-shadow: var(--shadow);
  transform: translate(-2px, -2px);
}
.didar-nav-cta:active {
  box-shadow: 2px 2px 0 var(--border);
  transform: translate(-1px, -1px);
  transition-duration: 0.05s;
}
.didar-nav-mobile-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: var(--border-w) solid var(--border);
  cursor: pointer;
  font-size: 1.4rem;
  padding: 0;
}
.didar-nav-mobile-btn:active {
  background: var(--fg);
  color: var(--bg);
}
.didar-nav-mobile-btn .icon-close { display: none; }
.didar-nav-mobile-btn[aria-expanded="true"] .icon-hamburger { display: none; }
.didar-nav-mobile-btn[aria-expanded="true"] .icon-close { display: block; }

@media (min-width: 768px) {
  .didar-nav-links { display: flex; }
  .didar-nav-cta { display: inline-flex; }
  .didar-nav-mobile-btn { display: none; }
}

/* ---- MOBILE MENU ---- */
.didar-mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  inset-inline-start: 0;
  inset-inline-end: 0;
  bottom: 0;
  background: var(--bg);
  border-top: var(--border-w) solid var(--border);
  z-index: 99;
  padding: 24px 20px;
  flex-direction: column;
  gap: 0;
  overflow-y: auto;
}
.didar-mobile-menu.didar-open {
  display: flex;
}
.didar-mobile-menu a {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  padding: 14px 0;
  border-bottom: 2px solid var(--border);
}
.didar-mobile-menu a:last-of-type { border-bottom: none; }
.didar-mobile-menu .didar-mobile-cta {
  display: block;
  margin-top: 16px;
  text-align: center;
  padding: 14px 24px;
  background: var(--accent-neon);
  color: var(--fg);
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow);
  font-weight: 800;
  font-size: 1rem;
  font-family: var(--font);
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
}
.didar-mobile-menu .didar-mobile-cta:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 #1A1A1A;
}
.didar-mobile-menu .didar-mobile-cta:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 #1A1A1A;
}