/**
 * AlgoBK Pro — Final enterprise polish (Phase 4)
 * Auth, settings, error pages, a11y helpers.
 * Builds on design-tokens + app-shell + trading-pages.
 */

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10000;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: #fff;
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* Change password — centered auth-card layout */
.app-shell .cp-wrap {
  width: 100%;
  max-width: none;
  min-height: calc(100dvh - 190px);
  display: grid;
  place-items: center;
  padding: var(--space-5);
}

.app-shell .cp-card {
  width: 100%;
  max-width: 440px;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 34px 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.app-shell .cp-card h2 {
  font-size: 24px;
  line-height: 1.25;
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: var(--space-2);
  color: var(--color-text-1);
}

.app-shell .cp-card .cp-sub {
  font-size: 13.5px;
  line-height: 1.55;
  text-align: center;
  color: var(--color-text-3);
  margin-bottom: 26px;
}

.app-shell .cp-group { margin-bottom: 18px; }

.app-shell .cp-label {
  display: block;
  font-size: 12px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-3);
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}

.app-shell .cp-field { position: relative; }

.app-shell .cp-input {
  width: 100%;
  min-height: 46px;
  padding: 12px 46px 12px 14px;
  background: var(--color-bg-1);
  border: 1px solid var(--color-border);
  border-radius: 9px;
  color: var(--color-text-1);
  font-size: 14px;
  font-family: var(--font-sans);
  transition: border-color var(--duration-normal) var(--ease-standard),
    box-shadow var(--duration-normal) var(--ease-standard),
    background var(--duration-normal) var(--ease-standard);
}

.app-shell .cp-input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-bg-2);
  box-shadow: 0 0 0 3px var(--color-primary-muted);
}

.app-shell .cp-toggle {
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--color-text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
  min-width: 32px;
  min-height: 32px;
}

.app-shell .cp-toggle:hover,
.app-shell .cp-toggle:focus-visible { color: var(--color-primary); }

.app-shell .cp-toggle svg { width: 18px; height: 18px; display: block; }
.app-shell .cp-toggle .eye-off { display: none; }
.app-shell .cp-toggle.is-visible .eye-on { display: none; }
.app-shell .cp-toggle.is-visible .eye-off { display: block; }

.app-shell .cp-btn {
  width: 100%;
  min-height: 46px;
  padding: 12px;
  background: var(--color-primary);
  color: #fff;
  border: 1px solid var(--color-primary-border);
  border-radius: 9px;
  font-size: 14px;
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  margin-top: 2px;
  box-shadow: var(--shadow-glow-primary);
  transition: background var(--duration-normal) var(--ease-standard),
    border-color var(--duration-normal) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
}

.app-shell .cp-btn:hover { background: var(--color-primary-hover); }
.app-shell .cp-btn:active { transform: scale(0.98); }

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

.app-shell .cp-alert.err {
  background: var(--color-danger-muted);
  border: 1px solid rgba(255, 77, 109, 0.28);
  color: var(--color-danger);
}

.app-shell .cp-alert.ok {
  background: var(--color-success-muted);
  border: 1px solid rgba(0, 255, 133, 0.28);
  color: var(--color-success);
}

.app-shell .cp-hint {
  font-size: var(--text-xs);
  color: var(--color-text-3);
  margin-top: 6px;
  line-height: 1.45;
}

@media (max-width: 600px) {
  .app-shell .cp-wrap {
    min-height: calc(100dvh - 150px);
    padding: var(--space-3) 0;
  }

  .app-shell .cp-card {
    padding: 28px 20px 24px;
  }

  .app-shell .cp-card h2 {
    font-size: 22px;
  }
}

/* Error pages */
.error-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background: var(--color-bg-0);
  color: var(--color-text-1);
  font-family: var(--font-sans);
  position: relative;
}

.error-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 144, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 144, 255, 0.035) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.error-page__card {
  position: relative;
  z-index: 1;
  width: min(440px, 100%);
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-6) var(--space-5);
  text-align: center;
}

.error-page__code {
  font-family: var(--font-mono);
  font-size: clamp(48px, 12vw, 72px);
  font-weight: var(--font-weight-bold);
  line-height: 1;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: var(--space-3);
}

.error-page__title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-2);
}

.error-page__msg {
  font-size: var(--text-sm);
  color: var(--color-text-2);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-5);
}

.error-page__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}

.error-page__actions a {
  text-decoration: none;
}

.error-page__brand {
  margin-top: var(--space-5);
  font-size: var(--text-xs);
  color: var(--color-text-3);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Landing auth */
body .auth-card {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

body .field-input input {
  border-radius: var(--radius-sm);
  min-height: 44px;
}

body .btn-primary {
  border-radius: var(--radius-sm);
  min-height: 44px;
  background: var(--color-primary);
  border-color: var(--color-primary-border);
  color: #fff;
}

body .btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

body .auth-alert--error {
  background: var(--color-danger-muted);
  border-color: rgba(255, 77, 109, 0.28);
  color: var(--color-danger);
  border-radius: var(--radius-sm);
}

body .auth-alert--success {
  background: var(--color-success-muted);
  border-color: rgba(0, 255, 133, 0.28);
  color: var(--color-success);
  border-radius: var(--radius-sm);
}

/* Admin list pages — kill leftover cyan accents */
body .layout tr:hover td {
  background: var(--color-primary-muted) !important;
}

body .layout .btn-view {
  background: var(--color-primary-muted) !important;
  color: var(--color-primary) !important;
  border: 1px solid var(--color-primary-border) !important;
}

body .layout .nav-item:focus-visible,
body .layout .btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (max-width: 768px) {
  .cp-btn,
  body .btn-primary {
    min-height: 44px;
  }
}