/* Page-specific / module styles */
@layer modules {
  /* Desktop: hide mobile-only elements */
  .header__nav-toggle,
  .nav__close {
    display: none;
  }

  /* Header module - modern glass effect with depth */
  .header {
    background: var(--gradient-header);
    color: white;
    padding: var(--space-md) 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;

    /* Layered shadow for depth separation */
    box-shadow:
      0 1px 0 oklch(100% 0 0 / 0.05) inset,
      var(--shadow-lg),
      0 1px 3px oklch(0% 0 0 / 0.2);

    /* Subtle inner highlight for glass effect */
    &::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(
        180deg,
        oklch(100% 0 0 / 0.08) 0%,
        transparent 50%
      );
      pointer-events: none;
    }
  }

  .header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    position: relative;
  }

  .header__logo {
    font-size: 1.375rem;
    font-weight: 700;
    color: white;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    min-height: 48px;
    transition: var(--transition-colors), transform var(--duration-fast) var(--ease-out);

    /* Subtle text shadow for depth */
    text-shadow: 0 1px 2px oklch(0% 0 0 / 0.15);
  }

  .header__logo:hover {
    color: oklch(95% 0.05 295);
    transform: translateY(-1px);
  }

  .header__logo-icon {
    flex-shrink: 0;
  }

  /* Navigation module - refined pills with smooth transitions */
  .nav {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
  }

  .nav__item {
    color: oklch(95% 0.05 295);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.9375rem;
    position: relative;
    transition:
      background-color var(--duration-fast) var(--ease-out),
      color var(--duration-fast) var(--ease-out),
      transform var(--duration-fast) var(--ease-out),
      box-shadow var(--duration-fast) var(--ease-out);
  }

  .nav__item:hover {
    background-color: oklch(100% 0 0 / 0.18);
    color: white;
    transform: translateY(-1px);
  }

  .nav__item:active {
    transform: translateY(0);
    background-color: oklch(100% 0 0 / 0.12);
  }

  .nav__item--active {
    background-color: oklch(100% 0 0 / 0.22);
    color: white;
    box-shadow: 0 1px 3px oklch(0% 0 0 / 0.1) inset;
  }

  .nav__item--active:hover {
    background-color: oklch(100% 0 0 / 0.28);
  }

  /* Subtle upgrade link in nav */
  .nav__item--upgrade {
    color: oklch(85% 0.12 80);
    font-size: 0.8125rem;
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid oklch(85% 0.12 80 / 0.4);
    background: oklch(85% 0.12 80 / 0.1);
  }

  .nav__item--upgrade:hover {
    background: oklch(85% 0.12 80 / 0.2);
    border-color: oklch(85% 0.12 80 / 0.6);
    color: oklch(95% 0.12 80);
  }

  /* Nav footer (locale + logout wrapper) */
  .nav__footer {
    display: flex;
    align-items: center;
  }

  /* Logout button in nav */
  .nav__item--logout {
    background: oklch(100% 0 0 / 0.1);
    border: 1px solid oklch(100% 0 0 / 0.1);
    cursor: pointer;
    margin-left: var(--space-sm);
  }

  .nav__item--logout:hover {
    background-color: oklch(100% 0 0 / 0.2);
    border-color: oklch(100% 0 0 / 0.15);
  }

  /* Locale toggle */
  .nav__locale {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    margin-left: var(--space-sm);
    padding-left: var(--space-sm);
    border-left: 1px solid oklch(100% 0 0 / 0.15);
  }

  .nav__locale-btn {
    color: oklch(90% 0.05 295);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.8125rem;
    background: none;
    border: none;
    cursor: pointer;
    transition:
      background-color var(--duration-fast) var(--ease-out),
      color var(--duration-fast) var(--ease-out),
      transform var(--duration-fast) var(--ease-out);
  }

  .nav__locale-btn:hover {
    background-color: oklch(100% 0 0 / 0.15);
    color: white;
    transform: translateY(-1px);
  }

  .nav__locale-btn:active {
    transform: translateY(0);
  }

  .nav__locale-btn--active {
    background-color: oklch(100% 0 0 / 0.22);
    color: white;
  }

  .nav__locale--borderless {
    border-left: none;
    margin-left: 0;
    padding-left: 0;
  }

  /* Mobile navigation - slide-in panel */
  @media (max-width: 767px) {
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      flex-direction: column;
      align-items: stretch;
      justify-content: flex-start;
      padding: 5rem var(--space-lg) var(--space-lg);
      background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
      transform: translate3d(-100%, 0, 0);
      transition: transform 350ms var(--ease-out-expo);
      will-change: transform;
      z-index: 100;
      gap: var(--space-xs);
      backface-visibility: hidden;
    }

    .nav--open {
      transform: translate3d(0, 0, 0);
    }

    .nav__item {
      padding: var(--space-md) var(--space-lg);
      text-align: left;
      border-radius: var(--radius-lg);
      font-size: 1.125rem;
    }

    .nav__item:hover {
      background-color: oklch(100% 0 0 / 0.1);
    }

    .nav__item--active {
      background-color: oklch(100% 0 0 / 0.15);
    }

    .nav__item--upgrade {
      font-size: 0.9375rem;
      padding: var(--space-sm) var(--space-md);
      margin-top: var(--space-sm);
    }

    .nav__footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: auto;
      padding-top: var(--space-md);
      border-top: 1px solid oklch(100% 0 0 / 0.1);
    }

    .nav__item--logout {
      margin: 0;
      padding: var(--space-sm) var(--space-md);
      min-height: 48px;
      display: inline-flex;
      align-items: center;
    }

    .nav__locale {
      margin: 0;
      padding: 0;
      border: none;
    }

    .nav__locale-btn {
      padding: var(--space-sm) var(--space-md);
      font-size: 1rem;
      min-height: 48px;
      min-width: 48px;
    }

    .nav__close {
      display: flex;
      align-items: center;
      justify-content: center;
      position: absolute;
      top: var(--space-md);
      right: var(--space-md);
      padding: var(--space-sm);
      min-width: 48px;
      min-height: 48px;
      color: white;
      background: oklch(100% 0 0 / 0.1);
      border: none;
      cursor: pointer;
      border-radius: var(--radius-md);
    }

    .nav__close:hover {
      background-color: oklch(100% 0 0 / 0.2);
    }

    .header__nav-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
      padding: var(--space-sm);
      min-width: 48px;
      min-height: 48px;
      color: white;
      background: none;
      border: none;
      cursor: pointer;
      border-radius: var(--radius-md);
    }

    .header__nav-toggle:hover {
      background-color: oklch(100% 0 0 / 0.15);
    }
  }

  /* Page header module - hero-style with refined spacing */
  .page-header {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border-muted);
  }

  .page-header__title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
    letter-spacing: -0.025em;
    color: var(--color-text);
  }

  .page-header__subtitle {
    color: var(--color-text-light);
    font-size: 1rem;
    margin: 0;
    line-height: 1.6;
  }

  @media (min-width: 768px) {
    .page-header {
      margin-bottom: var(--space-2xl);
    }

    .page-header__title {
      font-size: 2.25rem;
    }

    .page-header__subtitle {
      font-size: 1.0625rem;
    }
  }

  /* Welcome section - featured card style */
  .welcome {
    background: linear-gradient(135deg, var(--color-primary-subtle) 0%, var(--color-bg) 100%);
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
  }

  .welcome__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-primary-dark);
  }

  .welcome__text {
    color: var(--color-text-muted);
    margin: 0;
    line-height: 1.6;
  }

  @media (min-width: 768px) {
    .welcome {
      padding: var(--space-2xl);
    }

    .welcome__title {
      font-size: 1.5rem;
    }
  }

  /* Auth module - login/register forms */
  .auth-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: calc(100vh - 200px);
    padding-top: var(--space-xl);
  }

  .auth-card {
    width: 100%;
    max-width: 420px;
  }

  .auth-card .card__header {
    text-align: center;
    border-bottom: none;
    padding-bottom: var(--space-sm);
  }

  .auth-card .card__title {
    font-size: 1.5rem;
  }

  .auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
  }

  .auth-submit {
    width: 100%;
  }

  .auth-footer {
    justify-content: center;
    gap: var(--space-sm);
    text-align: center;
  }

  @media (min-width: 768px) {
    .auth-container {
      padding-top: var(--space-2xl);
    }
  }
}