/* ============================================
   Navigation Styles - Header, Nav, Footer
   ============================================ */

/* === HEADER === */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-primary);
  z-index: var(--z-fixed);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--content-padding);
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  text-decoration: none;
}

.header__logo:hover {
  color: var(--magenta-light);
}

.header__logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--magenta-primary), var(--magenta-dark));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
}

/* Desktop navigation */
.header__nav {
  display: none;
}

@media (min-width: 768px) {
  .header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
  }
}

.header__nav-link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

.header__nav-link--active {
  color: var(--magenta-light);
  background: var(--magenta-subtle);
}

/* Mobile menu button */
.header__menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  transition: background var(--transition-fast);
}

.header__menu-btn:hover {
  background: var(--bg-hover);
}

@media (min-width: 768px) {
  .header__menu-btn {
    display: none;
  }
}

/* Menu icon bars */
.menu-icon {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 20px;
}

.menu-icon span {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.header__menu-btn[aria-expanded="true"] .menu-icon span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.header__menu-btn[aria-expanded="true"] .menu-icon span:nth-child(2) {
  opacity: 0;
}

.header__menu-btn[aria-expanded="true"] .menu-icon span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* === MOBILE NAV === */

.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  padding: var(--space-4);
  z-index: var(--z-fixed);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
}

.mobile-nav--open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (min-width: 768px) {
  .mobile-nav {
    display: none;
  }
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-xl);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.mobile-nav__link:hover,
.mobile-nav__link--active {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.mobile-nav__link--active {
  color: var(--magenta-light);
  background: var(--magenta-subtle);
}

.mobile-nav__icon {
  width: 24px;
  height: 24px;
  opacity: 0.7;
}

/* === STRICTNESS MODE SELECTOR === */

/* Desktop dropdown trigger */
.header__mode-selector {
  position: relative;
  display: none;
  margin-left: var(--space-4);
}

@media (min-width: 768px) {
  .header__mode-selector {
    display: flex;
    align-items: center;
  }
}

.mode-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.mode-trigger:focus-visible {
  outline: 2px solid var(--magenta-primary);
  outline-offset: 2px;
}

.mode-trigger__dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--warning); /* Default to medium */
  transition: background var(--transition-fast);
}

.mode-trigger__dot--strict {
  background: var(--danger);
}

.mode-trigger__dot--medium {
  background: var(--warning);
}

.mode-trigger__dot--light {
  background: var(--success);
}

.mode-trigger__label {
  min-width: 50px;
}

.mode-trigger__chevron {
  opacity: 0.6;
  transition: transform var(--transition-fast);
}

.mode-trigger[aria-expanded="true"] .mode-trigger__chevron {
  transform: rotate(180deg);
}

/* Dropdown panel */
.mode-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--space-2);
  min-width: 180px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
  box-shadow: var(--shadow-lg);
}

.mode-dropdown--open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Dropdown options */
.mode-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-3);
  border: none;
  border-radius: var(--radius-lg);
  background: transparent;
  cursor: pointer;
  transition: background var(--transition-fast);
  text-align: left;
}

.mode-option:hover {
  background: var(--bg-hover);
}

.mode-option--active {
  background: var(--magenta-subtle);
}

.mode-option:focus-visible {
  outline: 2px solid var(--magenta-primary);
  outline-offset: -2px;
}

.mode-option__dot {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
}

.mode-option__dot--strict {
  background: var(--danger);
}

.mode-option__dot--medium {
  background: var(--warning);
}

.mode-option__dot--light {
  background: var(--success);
}

.mode-option__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mode-option__text strong {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-primary);
}

.mode-option__text small {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* Mobile mode selector */
.mobile-nav__mode {
  margin-top: var(--space-6);
  padding: var(--space-5);
  border-top: 1px solid var(--border-primary);
}

.mobile-nav__mode-title {
  display: block;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.mobile-nav__mode-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* Mobile Mode Card Design */
.mobile-mode-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-4) var(--space-5);
  background: var(--bg-tertiary);
  border: 2px solid var(--border-primary);
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
  position: relative;
  overflow: hidden;
}

.mobile-mode-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.mobile-mode-card--strict::before {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), transparent);
}

.mobile-mode-card--medium::before {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), transparent);
}

.mobile-mode-card--light::before {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), transparent);
}

.mobile-mode-card:active {
  transform: scale(0.98);
}

/* Color indicators */
.mobile-mode-card__indicator {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  position: relative;
  transition: all 0.2s ease;
}

.mobile-mode-card--strict .mobile-mode-card__indicator {
  background: var(--danger);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.mobile-mode-card--medium .mobile-mode-card__indicator {
  background: var(--warning);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

.mobile-mode-card--light .mobile-mode-card__indicator {
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

/* Labels */
.mobile-mode-card__label {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  line-height: 1;
}

.mobile-mode-card__desc {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-left: auto;
}

/* Active state */
.mobile-mode-card--active {
  border-color: var(--magenta-primary);
  background: var(--bg-secondary);
}

.mobile-mode-card--active::before {
  opacity: 1;
}

.mobile-mode-card--active .mobile-mode-card__indicator {
  transform: scale(1.2);
}

.mobile-mode-card--active.mobile-mode-card--strict {
  border-color: var(--danger);
}

.mobile-mode-card--active.mobile-mode-card--medium {
  border-color: var(--warning);
}

.mobile-mode-card--active.mobile-mode-card--light {
  border-color: var(--success);
}

/* Checkmark on active */
.mobile-mode-card--active .mobile-mode-card__indicator::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 6px;
  background: white;
  border-radius: var(--radius-full);
  transform: translate(-50%, -50%);
  animation: pulse-in 0.2s ease;
}

@keyframes pulse-in {
  0% {
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.5);
  }
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
}

/* Selection confirmation animation */
.mobile-mode-card--selected {
  animation: card-confirm 0.3s ease;
}

@keyframes card-confirm {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(0.97);
  }
}

/* Focus state */
.mobile-mode-card:focus-visible {
  outline: 2px solid var(--magenta-primary);
  outline-offset: 2px;
}

/* === PAGE NAV (Secondary) === */

.page-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-nav__link {
  flex-shrink: 0;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.page-nav__link:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.page-nav__link--active {
  color: var(--magenta-light);
  background: var(--magenta-subtle);
}

/* === FOOTER === */

.footer {
  margin-top: auto;
  padding: var(--space-8) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-primary);
}

.footer__container {
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--content-padding);
}

.footer__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

@media (min-width: 768px) {
  .footer__content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer__logo {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--magenta-primary), var(--magenta-dark));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: white;
}

.footer__title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
}

.footer__copyright {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.footer__links {
  display: flex;
  gap: var(--space-4);
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.footer__link:hover {
  color: var(--magenta-light);
}

/* === BREADCRUMB === */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.breadcrumb__item::after {
  content: '/';
  color: var(--border-secondary);
}

.breadcrumb__item:last-child::after {
  display: none;
}

.breadcrumb__link {
  color: var(--text-secondary);
}

.breadcrumb__link:hover {
  color: var(--magenta-light);
}

.breadcrumb__current {
  color: var(--text-primary);
}