/* ============================================================
   Site Header Styles - URLPeek
   Based on the existing style.css design system
   ============================================================ */

/* ── Site Header Container ─────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--navbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: rgba(11, 12, 16, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

/* ── Logo Styles (based on .login-logo but modified for header) ── */
.site-header .login-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  transition: opacity var(--transition), transform var(--transition);
}

.site-header .login-logo:hover {
  opacity: 0.85;
  transform: scale(1.02);
}

.site-header .login-logo:active {
  transform: scale(0.98);
}

.site-header .login-logo img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  transition: filter var(--transition);
}

.site-header .login-logo:hover img {
  filter: brightness(1.1);
}

.site-header .login-logo span {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--text);
  font-family: var(--font);
  transition: color var(--transition);
}

.site-header .login-logo:hover span {
  color: var(--accent);
}

/* ── Site Navigation ──────────────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Navigation links - extended from .nav-link */
.site-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  transition: color var(--transition), background var(--transition);
  font-family: var(--font);
  cursor: pointer;
}

.site-nav .nav-link:hover {
  color: var(--text);
  background: var(--surface-2);
}

.site-nav .nav-link:active {
  transform: scale(0.98);
}

/* Active link state (add .active class via JS) */
.site-nav .nav-link.active {
  color: var(--accent);
  background: var(--accent-dim);
}

/* Special styling for API link */
.site-nav .nav-api {
  position: relative;
}

/* API badge - elegant version */
.site-nav .nav-api::after {
  content: "Beta";
  position: absolute;
  top: -8px;
  right: -4px;
  font-size: 9px;
  font-weight: 700;
  padding: 2px 6px;
  background: var(--success);
  color: white;
  border-radius: 99px;
  letter-spacing: 0.02em;
  font-family: var(--font);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  transition: transform var(--transition), opacity var(--transition);
  opacity: 0;
  transform: translateY(4px);
}

.site-nav .nav-api:hover::after {
  opacity: 1;
  transform: translateY(0);
}

/* Alternative: subtle accent styling for API link */
.site-nav .nav-api {
  background: var(--accent-dim);
  border: 1px solid var(--border);
  color: var(--accent);
}

.site-nav .nav-api:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.site-nav .nav-api:hover::after {
  background: white;
  color: var(--accent);
}

/* ── Mobile Menu Button (Hamburger) ───────────────────────────── */
.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
  flex-direction: column;
  gap: 4px;
}

.mobile-menu-toggle:hover {
  background: var(--surface-2);
}

.mobile-menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-2);
  border-radius: 2px;
  transition: all var(--transition);
}

.mobile-menu-toggle:hover span {
  background: var(--text);
}

/* Mobile navigation (hidden by default) */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--navbar-h);
  left: 0;
  right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px;
  flex-direction: column;
  gap: 8px;
  z-index: 99;
  animation: slide-down 0.25s ease;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav .nav-link {
  padding: 12px 16px;
  width: 100%;
  justify-content: center;
}

@keyframes slide-down {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Responsive Styles ────────────────────────────────────────── */
@media (max-width: 768px) {
  .site-header {
    padding: 0 20px;
  }

  .site-header .login-logo img {
    width: 28px;
    height: 28px;
  }

  .site-header .login-logo span {
    font-size: 16px;
  }

  .site-nav {
    gap: 4px;
  }

  .site-nav .nav-link {
    padding: 6px 12px;
    font-size: 12px;
  }
}

@media (max-width: 600px) {
  .site-header {
    padding: 0 16px;
  }

  /* Hide regular nav, show mobile toggle */
  .site-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  /* Optional: show API link in mobile nav only */
  .mobile-nav .nav-api::after {
    position: relative;
    top: auto;
    right: auto;
    margin-left: 6px;
    opacity: 1;
    transform: none;
    font-size: 8px;
    padding: 2px 6px;
  }
}

@media (max-width: 480px) {
  .site-header .login-logo span {
    display: none;
  }

  .site-header .login-logo img {
    width: 32px;
    height: 32px;
  }
}

/* ── Scroll effect (add .scrolled class via JS) ───────────────── */
.site-header.scrolled {
  background: rgba(11, 12, 16, 0.98);
  border-bottom-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

/* ── Accessibility focus styles ───────────────────────────────── */
.site-header .nav-link:focus-visible,
.site-header .login-logo:focus-visible,
.mobile-menu-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ── Subtle animation on page load ────────────────────────────── */
.site-header {
  animation: header-slide-down 0.35s ease both;
}

@keyframes header-slide-down {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}