/* ==========================================================================
   THE KNIGHT CLUB — Super Admin: shared components + login page
   This file is the de-facto shared component stylesheet (loaded on every
   page): buttons, form controls, alerts and the guarded-shell/topbar rules
   live here, plus the login-page-specific layout at the bottom. Uses ONLY
   tokens from tokens.css. Mobile-first: base rules are the phone layout;
   wider screens add to it.
   ========================================================================== */

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding-left: var(--space-4); padding-right: var(--space-4); }

/* ---- Header on the login page ---- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  gap: var(--space-4);
}
.brand {
  font-weight: 800;
  font-size: var(--font-size-xl);
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.brand span { color: var(--color-accent-500); }
.brand-tag {
  display: inline-block;
  margin-left: var(--space-2);
  padding: 0.1rem 0.55rem;
  border-radius: var(--radius-full);
  background: var(--color-accent-50);
  color: var(--color-accent-700);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  vertical-align: middle;
}

/* ---- Page shell ---- */
.auth-page {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
  background: var(--color-bg);
}

/* Restrained ambient glows echoing the app shell, scaled for a single
   focused card — decorative, inert, no horizontal overflow. */
.auth-page::before,
.auth-page::after {
  content: "";
  position: fixed;
  z-index: -1;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.18;
}
.auth-page::before {
  width: 38rem;
  height: 38rem;
  top: -16rem;
  left: 50%;
  transform: translateX(-62%);
  background: var(--gradient-ambient-1);
}
.auth-page::after {
  width: 30rem;
  height: 30rem;
  bottom: -14rem;
  right: -8rem;
  background: var(--gradient-ambient-3);
}

.auth-main {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-4) var(--space-4) var(--space-16);
}
.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  background: var(--color-glass-surface);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  padding: var(--space-6);
}
.auth-card h1 { font-size: var(--font-size-xl); margin-bottom: var(--space-2); }
.auth-card .lead { color: var(--color-text-muted); margin-bottom: var(--space-6); }

@media (prefers-reduced-motion: reduce) {
  .auth-page::before,
  .auth-page::after { opacity: 0.12; }
}

/* ---- Form primitives ---- */
.form-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
.field { display: flex; flex-direction: column; gap: var(--space-1); }
.field label { font-weight: 600; font-size: var(--font-size-sm); color: var(--color-text); }

.input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font: inherit;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard);
  /* 16px minimum stops iOS Safari from zooming the page on focus */
  font-size: 1rem;
}
.input:hover { border-color: var(--color-accent-300); }
.input:focus {
  outline: none;
  border-color: var(--focus-ring-color);
  box-shadow: var(--focus-ring);
}
.field.has-error .input { border-color: var(--color-error-text); box-shadow: 0 0 0 3px var(--color-error-bg); }
.field-error { color: var(--color-error-text); font-size: 0.8125rem; margin: 0; min-height: 0; }

/* Password field with show/hide toggle */
.password-wrap { position: relative; }
.password-wrap .input { padding-right: 4.25rem; }
.toggle-password {
  position: absolute;
  top: 50%;
  right: var(--space-2);
  transform: translateY(-50%);
  background: none;
  border: 0;
  padding: var(--space-1) var(--space-2);
  font: inherit;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-accent-600);
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.toggle-password:hover { background: var(--color-accent-50); }
.toggle-password:focus-visible { outline: 2px solid var(--color-accent-500); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-family-display);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
}

/* Primary: gradient fill + accent glow shadow, lifts slightly on hover. */
.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text-on-accent);
  box-shadow: var(--shadow-glow-sm);
}
.btn-primary:hover { background: var(--gradient-primary-hover); box-shadow: var(--shadow-glow); }
.btn-primary:active { transform: translateY(1px); box-shadow: var(--shadow-glow-sm); }

/* Secondary: solid neutral surface, for the second-priority action. */
.btn-secondary { background: var(--color-surface-sunken); color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover { background: var(--color-border); }

.btn-outline { background: transparent; color: var(--color-accent-700); border-color: var(--color-accent-300); }
.btn-outline:hover { background: var(--color-accent-50); }

.btn-ghost { background: transparent; color: var(--color-text-muted); border-color: transparent; }
.btn-ghost:hover { background: var(--color-surface-alt); color: var(--color-text); }

.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--font-size-sm); }
.btn-block { width: 100%; }
.btn:focus-visible { outline: 2px solid var(--focus-ring-color); outline-offset: 2px; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }
.btn .spinner {
  width: 1em;
  height: 1em;
  margin-right: var(--space-2);
  border: 2px solid var(--overlay-light-mid);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}
.btn.is-loading .spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .btn-primary:hover,
  .btn-secondary:hover,
  .btn-outline:hover { transform: translateY(-1px); }
}

/* ---- Alerts ---- */
.alert {
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
  border: 1px solid transparent;
}
.alert[hidden] { display: none; }
.alert:focus { outline: none; }
.alert-error { background: var(--color-error-bg); border-color: var(--color-error-border); color: var(--color-error-text-strong); }
.alert-info  { background: var(--color-surface-alt); border-color: var(--color-border); color: var(--color-text); }

/* ---- Guarded shell: hidden until the SERVER confirms the session, so an
        unauthenticated visitor never sees a flash of admin UI. ---- */
html.auth-pending body { visibility: hidden; }

/* Sidebar entries for modules that ship in later phases: visibly inert, and
   not focusable, so nothing pretends to work that does not exist yet.
   (Color comes from base.css's dark-sidebar tokens; only behavior here.) */
.sidebar nav .nav-disabled {
  cursor: not-allowed;
  user-select: none;
}
.topbar-right { display: flex; align-items: center; gap: var(--space-4); flex-wrap: wrap; }

/* Admin identity: a compact name chip with a small gradient avatar dot —
   production-clean, no raw admin ID or role-string clutter in the topbar
   (that detail lives on the Settings page, not repeated on every screen). */
.admin-identity {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3) var(--space-1) var(--space-1);
  border-radius: var(--radius-full);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: 600;
  max-width: 16rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-identity::before {
  content: "";
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--gradient-primary);
}

.admin-identity:empty { display: none; }

@media (min-width: 640px) {
  .auth-main { padding-top: var(--space-8); }
  .auth-card { padding: var(--space-8); }
}
/* Extreme-narrow tier (iPhone SE class, ~320-375px) — not part of the app's
   standard mobile/tablet/desktop breakpoints (see tokens.css --bp-*), only
   used here to shave card padding on the smallest real devices. */
@media (max-width: 380px) {
  .auth-card { padding: var(--space-4); }
}
@media (prefers-reduced-motion: reduce) {
  .btn .spinner { animation-duration: 2s; }
  .input, .btn { transition: none; }
}