/**
 * navbar.css - Navbar and theme toggle styles
 * Extracted from Navbar.astro and ThemeToggle.astro
 */

/* ==========================================================================
   Navbar Base
   ========================================================================== */

.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  background: var(--bg-primary);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.navbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 2rem;
  min-height: 64px;
  position: relative;
}

.navbar-section {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.navbar-left {
  flex: 1 1 0;
  justify-content: flex-start;
}

.navbar-center {
  flex: 0 0 auto;
  justify-content: center;
}

.navbar-right {
  flex: 1 1 0;
  justify-content: flex-end;
}

/* ==========================================================================
   Logo
   ========================================================================== */

.logo-link {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo {
  height: 4rem;
  width: auto;
}

/* Dark mode logo switch */
html.dark .logo {
  filter: brightness(0) invert(1);
}

/* ==========================================================================
   Nav Links
   ========================================================================== */

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  padding: 0.5rem 0.5rem;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
  font-weight: 700;
  font-size: 1.15rem;
}

.nav-link[aria-current="page"], .nav-link.active {
  background: var(--bg-hover);
  color: var(--color-primary);
}

.nav-link:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
}

/* ==========================================================================
   Dropdowns
   ========================================================================== */

.dropdown {
  position: relative;
}

.dropbtn {
  background: none;
  border: none;
  font: inherit;
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
  font-weight: 700;
  font-size: 1.15rem;
}

.dropbtn:hover, .dropbtn:focus {
  background: var(--bg-hover);
  color: var(--color-primary);
}

.dropdown-content {
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  background: var(--bg-primary);
  min-width: 220px;
  box-shadow: var(--shadow-lg);
  border-radius: 4px;
  overflow: hidden;
  z-index: 10;
  transition: top 0.15s;
  border: 1px solid var(--border-primary);
}

.dropdown:focus-within .dropdown-content,
.dropdown:hover .dropdown-content {
  display: block;
  pointer-events: auto;
}

.dropdown-content .nav-link {
  display: block;
  padding: 0.5rem 0.5rem;
  color: var(--text-primary);
  font-weight: 400;
  font-size: 1rem;
}

.dropdown-divider {
  height: 1px;
  background: var(--border-primary);
  margin: 0.5rem 0;
  width: 100%;
}

/* ==========================================================================
   Auth Buttons — Signup & Login
   ========================================================================== */

/* Signup button - primary CTA */
.signup-btn {
  text-decoration: none;
  color: var(--text-on-brand);
  background: var(--color-gradient);
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.2s, color 0.2s;
  box-shadow: var(--shadow-primary-sm);
  border: none;
  display: inline-block;
}

.signup-btn:hover {
  background: var(--color-gradient-reverse);
  color: var(--text-on-brand);
}

/* Login button - secondary style */
.login-btn-secondary {
  text-decoration: none;
  color: var(--color-primary);
  padding: 0.5rem 0.75rem;
  font-weight: 600;
  font-size: 1rem;
  transition: color 0.2s;
  display: inline-block;
  margin-left: 0.5rem;
}

.login-btn-secondary:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

/* Legacy login-btn class (keep for compatibility) */
.login-btn {
  text-decoration: none;
  color: var(--text-on-brand);
  background: var(--color-gradient);
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.2s, color 0.2s;
  box-shadow: var(--shadow-primary-sm);
  border: none;
  display: inline-block;
}

.login-btn:hover {
  background: var(--color-gradient-reverse);
  color: var(--text-on-brand);
}

/* ==========================================================================
   Auth State Management (prevents flash of wrong buttons)
   ========================================================================== */

/* Before auth-ready: hide everything to prevent wrong buttons showing */
html:not(.auth-ready) .auth-guest,
html:not(.auth-ready) .auth-user {
  display: none !important;
}

/* After auth-ready, default state (guest): show guest buttons, hide user buttons */
html.auth-ready .auth-user {
  display: none !important;
}

html.auth-ready .auth-guest {
  display: inline-block;
}

html.auth-ready .auth-buttons-mobile .auth-guest {
  display: block;
}

/* Authenticated state: hide guest buttons, show user buttons */
html.auth-ready.auth-logged-in .auth-guest {
  display: none !important;
}

html.auth-ready.auth-logged-in .auth-user {
  display: flex !important;
}

html.auth-ready.auth-logged-in .auth-buttons-mobile .auth-user {
  display: flex !important;
  flex-direction: column;
  width: 100%;
}

/* Hide achievements nav links when disabled */
html.achievements-disabled .achievements-nav-link {
  display: none !important;
}

/* ==========================================================================
   Auth Buttons Container & Logged-In State
   ========================================================================== */

.auth-buttons {
  display: flex;
  align-items: center;
}

.auth-logged-in {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logout-btn {
  background: none;
  border: 1px solid var(--border-secondary);
  color: var(--text-muted);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}

.logout-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-secondary);
  color: var(--text-primary);
}

.auth-logged-in-mobile {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.logout-btn-mobile {
  background: var(--bg-tertiary);
  border: none;
  color: var(--text-muted);
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  cursor: pointer;
  text-align: left;
  width: 100%;
}

/* ==========================================================================
   Hamburger Menu
   ========================================================================== */

.navbar-toggle {
  display: none;
}

.navbar-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  cursor: pointer;
  margin-left: 1rem;
  z-index: 20;
}

.navbar-burger span {
  height: 3px;
  width: 100%;
  background: var(--text-primary);
  margin: 3px 0;
  border-radius: 2px;
  transition: all 0.3s;
}

.navbar-mobile-menu {
  display: none;
}

/* ==========================================================================
   Language Switcher
   ========================================================================== */

.language-switcher {
  position: relative;
}

.lang-btn {
  background: none;
  border: 1px solid var(--border-secondary);
  font: inherit;
  color: var(--text-primary);
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s;
  font-weight: 600;
  font-size: 0.9rem;
  min-width: 48px;
  text-align: center;
}

.lang-btn:hover, .lang-btn:focus {
  background: var(--bg-hover);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.lang-dropdown {
  right: 0;
  left: auto;
  min-width: 120px;
}

.lang-dropdown .nav-link {
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
}

.lang-dropdown .nav-link.active {
  background: var(--color-primary);
  color: var(--text-on-brand);
}

/* ==========================================================================
   Account Dropdown
   ========================================================================== */

.account-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-gradient);
  color: var(--text-on-brand);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
}

.account-btn:hover, .account-btn:focus {
  background: var(--color-gradient-reverse);
  color: var(--text-on-brand);
}

.account-icon {
  font-size: 1rem;
}

.account-dropdown-content {
  right: 0;
  left: auto;
  min-width: 160px;
}

.logout-btn-dropdown {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 0.5rem 0.5rem;
  color: var(--color-error);
  font-size: 1rem;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.2s;
}

.logout-btn-dropdown:hover {
  background: var(--color-error-bg);
}

/* ==========================================================================
   Mobile Language & Theme Switcher Container
   ========================================================================== */

.mobile-switchers {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-primary);
  margin-bottom: 8px;
}

/* Mobile Language Switcher */
.language-switcher-mobile {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.lang-btn-mobile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: 8px 12px;
  border: 1px solid var(--border-secondary);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.2s;
}

.lang-btn-mobile:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.lang-btn-mobile.active {
  background: var(--color-primary);
  color: var(--text-on-brand);
  border-color: var(--color-primary);
}

/* ==========================================================================
   Theme Toggle (from ThemeToggle.astro)
   ========================================================================== */

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1.25rem;
  transition: all 0.2s;
}

.theme-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--color-primary);
}

.theme-icon {
  display: none;
}

/* Show appropriate icon based on data-theme attribute */
.theme-toggle[data-theme="light"] .theme-icon-light,
.theme-toggle:not([data-theme]) .theme-icon-system {
  display: block;
}

.theme-toggle[data-theme="dark"] .theme-icon-dark {
  display: block;
}

.theme-toggle[data-theme="system"] .theme-icon-system {
  display: block;
}

/* ==========================================================================
   Responsive — Tablet (max-width: 900px)
   ========================================================================== */

@media (max-width: 900px) {
  .navbar-inner {
    padding: 0.5rem 1rem;
  }
}

/* ==========================================================================
   Responsive — Mobile (max-width: 700px)
   ========================================================================== */

@media (max-width: 700px) {
  .navbar-inner {
    padding: 0.5rem 0.5rem;
  }

  .navbar-section {
    display: none;
  }

  .navbar-burger {
    display: flex;
  }

  .navbar-toggle:checked ~ .navbar-burger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .navbar-toggle:checked ~ .navbar-burger span:nth-child(2) {
    opacity: 0;
  }

  .navbar-toggle:checked ~ .navbar-burger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .navbar-toggle:checked ~ .navbar-mobile-menu {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100vw;
    background: var(--bg-primary);
    box-shadow: var(--shadow-lg);
    padding: 1rem 0;
    z-index: 15;
    gap: 0.5rem;
  }

  .navbar-mobile-menu .nav-link,
  .navbar-mobile-menu .login-btn {
    width: 100%;
    text-align: left;
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
    border-radius: 0;
    background: none;
    color: var(--text-primary);
    box-shadow: none;
  }

  .navbar-mobile-menu .login-btn {
    background: var(--color-gradient);
    color: var(--text-on-brand);
    border-radius: 0 0 6px 6px;
    margin-top: 0.5rem;
  }

  /* Mobile signup button */
  .signup-btn-mobile {
    display: block;
    width: 100%;
    text-align: center;
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
    background: var(--color-gradient);
    color: var(--text-on-brand);
    text-decoration: none;
    font-weight: 600;
    margin-top: 0.5rem;
  }

  .login-btn-mobile-secondary {
    display: block;
    width: 100%;
    text-align: center;
    padding: 0.5rem 1.5rem;
    font-size: 1rem;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
  }

  .dropdown-mobile {
    width: 100%;
  }

  .dropbtn-mobile {
    background: none;
    border: none;
    font: inherit;
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    width: 100%;
    text-align: left;
    font-size: 1.15rem;
    font-weight: 700;
    cursor: pointer;
  }

  .dropdown-content-mobile {
    display: none;
    flex-direction: column;
    background: var(--bg-secondary);
    width: 100%;
    padding-left: 1.5rem;
  }

  .dropdown-mobile:focus-within .dropdown-content-mobile,
  .dropdown-mobile:hover .dropdown-content-mobile {
    display: flex;
  }

  .dropdown-content-mobile .nav-link {
    padding: 0.5rem 0;
    color: var(--text-primary);
    background: none;
    font-weight: 400;
    font-size: 1rem;
  }

  /* Theme toggle mobile adjustments */
  .theme-toggle {
    width: 44px;
    height: 44px;
  }
}