/* ===================================================================
   Zurl — Header partial
   Pairs with views/partials/header.ejs. Link this BEFORE the page
   stylesheet so page-level rules can still override the chrome.

   Tokens are namespaced --zurl-* and every rule is scoped under
   .navbar, so pages with their own design system (login, signup)
   can't collide with the header and vice versa.
=================================================================== */

:root {
  /* Shared by header.css and footer.css */
  --zurl-bg: #FAFAFC;
  --zurl-bg-alt: #F3F3FB;
  --zurl-surface: #FFFFFF;
  --zurl-ink: #11131F;
  --zurl-ink-soft: #4B4F63;
  --zurl-muted: #767B91;
  --zurl-border: #E6E6F0;

  --zurl-primary: #4F46E5;
  --zurl-primary-dark: #3D34C9;
  --zurl-primary-light: #EEF0FF;

  --zurl-gradient: linear-gradient(135deg, #4F46E5 0%, #6D5CF5 45%, #8B6CF7 100%);

  --zurl-font-display: 'Sora', 'Inter', system-ui, sans-serif;
  --zurl-font-body: 'Inter', system-ui, sans-serif;

  --zurl-shadow-sm: 0 1px 2px rgba(17, 19, 31, 0.05);
  --zurl-shadow-glow: 0 12px 40px rgba(79, 70, 229, 0.25);

  --zurl-radius-sm: 10px;
  --zurl-radius-pill: 999px;

  --zurl-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --zurl-transition: 0.18s var(--zurl-ease);
}

/* ===================== SHELL ===================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  font-family: var(--zurl-font-body);
  color: var(--zurl-ink);
  background: rgba(250, 250, 252, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--zurl-border);
}

.navbar__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.navbar a { color: inherit; text-decoration: none; }
.navbar svg { display: block; max-width: 100%; }

/* ===================== BRAND ===================== */
.navbar .brand {
  display: flex;
  align-items: center;
  gap: 9px;
}

.navbar .brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--zurl-gradient);
  color: #fff;
}

.navbar .brand__name {
  font-family: var(--zurl-font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.01em;
}

/* ===================== NAV LINKS ===================== */
.navbar .nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.navbar .nav-link {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--zurl-ink-soft);
  padding: 8px 14px;
  border-radius: var(--zurl-radius-pill);
  transition: background var(--zurl-transition), color var(--zurl-transition);
}
.navbar .nav-link:hover { background: var(--zurl-bg-alt); color: var(--zurl-ink); }
.navbar .nav-link--active {
  background: var(--zurl-primary-light);
  color: var(--zurl-primary);
  font-weight: 600;
}
.navbar .nav-link--active:hover {
  background: var(--zurl-primary-light);
  color: var(--zurl-primary-dark);
}

/* ===================== ACTIONS ===================== */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Scoped copies of the button styles so the chrome renders identically on
   pages whose own stylesheet has no .btn (login, signup). */
.navbar .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--zurl-font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: var(--zurl-radius-pill);
  border: 1px solid transparent;
  white-space: nowrap;
  transition: transform var(--zurl-transition), box-shadow var(--zurl-transition),
              background var(--zurl-transition), color var(--zurl-transition),
              border-color var(--zurl-transition);
}

.navbar .btn--primary {
  background: var(--zurl-ink);
  color: #fff;
}
.navbar .btn--primary:hover {
  background: var(--zurl-primary);
  transform: translateY(-1px);
  box-shadow: var(--zurl-shadow-glow);
}

.navbar .btn--ghost {
  background: transparent;
  color: var(--zurl-ink-soft);
  border-color: var(--zurl-border);
}
.navbar .btn--ghost:hover {
  color: var(--zurl-ink);
  border-color: var(--zurl-ink-soft);
  background: var(--zurl-bg-alt);
}

/* ===================== SIGNED-IN BADGE ===================== */
.navbar .user-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  max-width: 190px;
  padding: 5px 14px 5px 5px;
  border: 1px solid var(--zurl-border);
  border-radius: var(--zurl-radius-pill);
  background: var(--zurl-surface);
  color: var(--zurl-ink);
  transition: border-color var(--zurl-transition), background var(--zurl-transition),
              box-shadow var(--zurl-transition);
}
.navbar .user-badge:hover {
  border-color: var(--zurl-primary);
  background: var(--zurl-primary-light);
  box-shadow: var(--zurl-shadow-sm);
}

.navbar .user-badge__avatar {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: var(--zurl-radius-pill);
  background: var(--zurl-gradient);
  color: #fff;
  font-family: var(--zurl-font-display);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.navbar .user-badge__name {
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.navbar .user-badge--mobile {
  display: flex;
  max-width: none;
  margin-top: 10px;
  padding: 8px 16px 8px 8px;
}

/* ===================== MOBILE ===================== */
.navbar .nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  background: transparent;
  border: 1px solid var(--zurl-border);
  border-radius: var(--zurl-radius-sm);
  padding: 0;
  cursor: pointer;
}
.navbar .nav-toggle span {
  display: block;
  width: 16px;
  height: 2px;
  margin: 0 auto;
  background: var(--zurl-ink);
  border-radius: 2px;
  transition: transform var(--zurl-transition), opacity var(--zurl-transition);
}
.navbar .nav-toggle--open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar .nav-toggle--open span:nth-child(2) { opacity: 0; }
.navbar .nav-toggle--open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.navbar .mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px 20px 18px;
  border-top: 1px solid var(--zurl-border);
}
.navbar .mobile-menu .nav-link { padding: 12px 8px; }
.navbar .mobile-menu__actions {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}
.navbar .mobile-menu__actions .btn { flex: 1; }

@media (max-width: 860px) {
  .navbar .nav-links,
  .navbar__actions { display: none; }
  .navbar .nav-toggle { display: flex; }
  .navbar .mobile-menu--open { display: flex; }
}