/**
 * auth.css — Login & Sign Up page styling
 *
 * Hides the app chrome (sidebar, topbar) when body.auth-mode is set,
 * then paints a full-viewport dark gradient backdrop with a centered
 * glass card. Reuses existing tokens — no new design language.
 */

/* ============================================
   Hide app chrome on auth pages
   ============================================ */
body.auth-mode .sidebar,
body.auth-mode .topbar,
body.auth-mode .sidebar-overlay {
  display: none !important;
}

body.auth-mode .main {
  margin-left: 0 !important;
  width: 100% !important;
}

body.auth-mode .earth-canvas {
  /* Keep the 3D Earth behind the auth form, but dim it */
  opacity: 0.35;
  filter: blur(2px) saturate(0.7);
  transition: opacity 400ms ease, filter 400ms ease;
}

/* ============================================
   Page wrapper
   ============================================ */
.auth-page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-5);
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%,
      rgba(79, 172, 254, 0.10),
      transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 100%,
      rgba(34, 211, 238, 0.06),
      transparent 60%),
    linear-gradient(180deg,
      var(--color-bg-base) 0%,
      var(--color-bg-deep) 100%);
}

.auth-container {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

/* ============================================
   Brand block (icon + title + subtitle)
   ============================================ */
.auth-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
}

.auth-brand-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 30% 30%,
      rgba(79, 172, 254, 0.18),
      transparent 70%),
    rgba(11, 19, 34, 0.72);
  border: 1px solid var(--color-border-accent);
  color: var(--color-accent);
  box-shadow: var(--shadow-glow-accent);
  margin-bottom: var(--space-2);
}

.auth-brand-icon svg {
  width: 32px;
  height: 32px;
}

.auth-brand-title {
  margin: 0;
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.auth-brand-subtitle {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   Card / form
   ============================================ */
.auth-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.auth-card .card {
  background: var(--color-bg-glass-strong);
  border: 1px solid var(--color-border-strong);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: var(--shadow-2xl);
}

/* Tighten form spacing inside the auth card */
.auth-card .form-group {
  margin: 0;
}

/* Footer link row under the card */
.auth-footer {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.auth-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: var(--weight-semibold);
  margin-left: 4px;
  transition: color var(--duration-fast) var(--ease-soft);
}

.auth-link:hover {
  color: var(--color-accent-bright);
  text-decoration: underline;
}

.auth-link:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-xs);
}

/* ============================================
   Form error & alert banner
   ============================================ */
.form-error {
  margin-top: var(--space-1);
}

.alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.alert-error {
  background: rgba(239, 68, 68, 0.10);
  border: 1px solid rgba(239, 68, 68, 0.30);
  color: var(--color-loss);
}

.alert-success {
  background: rgba(34, 197, 94, 0.10);
  border: 1px solid rgba(34, 197, 94, 0.30);
  color: var(--color-profit);
}

/* Inline toggle button inside password fields */
.auth-card .form-group .form-input {
  padding-right: 2.75rem;
}

/* ============================================
   Password strength indicator (signup)
   ============================================ */
.strength-bar {
  flex: 1;
  height: 4px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  transition: background var(--duration-fast) var(--ease-soft);
}

/* ============================================
   User menu (sidebar Profile / Logout)
   ============================================ */
.user-menu {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  right: 0;
  margin: 0;
  padding: var(--space-1);
  list-style: none;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  opacity: 0;
  transform: translateY(4px);
  transition:
    opacity var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.user-menu[hidden] {
  display: none;
}

.user-menu:not([hidden]) {
  opacity: 1;
  transform: translateY(0);
}

.user-menu-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-align: left;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-soft),
              color var(--duration-fast) var(--ease-soft);
}

.user-menu-item:hover,
.user-menu-item:focus-visible {
  background: var(--color-accent-dim);
  color: var(--color-text-primary);
  outline: none;
}

.user-menu-item svg {
  flex-shrink: 0;
  color: var(--color-text-secondary);
}

.user-menu-item:hover svg,
.user-menu-item:focus-visible svg {
  color: var(--color-accent);
}

.user-menu-item-danger {
  color: var(--color-text-secondary);
}

.user-menu-item-danger:hover,
.user-menu-item-danger:focus-visible {
  background: rgba(239, 68, 68, 0.10);
  color: var(--color-loss);
}

.user-menu-item-danger:hover svg,
.user-menu-item-danger:focus-visible svg {
  color: var(--color-loss);
}

.user-menu-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-1) 0;
}

/* Position the user section as the menu's positioning ancestor */
.sidebar-user {
  position: relative;
}

/* ============================================
   Sidebar user detail text
   ============================================ */
.sidebar-user-email {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  font-family: var(--font-mono);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 640px) {
  .auth-page {
    padding: var(--space-5) var(--space-4);
  }

  .auth-container {
    gap: var(--space-6);
  }

  .auth-brand-icon {
    width: 48px;
    height: 48px;
  }

  .auth-brand-icon svg {
    width: 28px;
    height: 28px;
  }

  .auth-brand-title {
    font-size: var(--text-lg);
  }
}

@media (max-width: 380px) {
  .auth-card .card-body {
    padding: var(--space-4) !important;
  }
}