/* =============================================================================
 * SONOYA - nb-auth.css
 * -----------------------------------------------------------------------------
 * COMPOSANT CANONIQUE : formulaires d'authentification (D-030).
 * Charge globalement (styles.php) car la modale de connexion est presente sur
 * toutes les pages. Trois blocs :
 *   .nb-auth        formulaire par etapes (login, register, claim, reset, pro)
 *   .nb-otp         saisie a 6 cases
 *   .nb-auth-modal  panneau de la modale (bottom sheet mobile, centre desktop)
 *   .au-*           coquille du layout auth.php (pages dediees)
 *
 * Mobile-first strict : champs 56 px, CTA pleine largeur, 6 cases OTP qui
 * tiennent a 360 px (6 x 44 + 5 x 8 = 304 px). Surfaces opaques (D-032).
 * ============================================================================= */

@layer components {

  /* ==========================================================================
   * FORMULAIRE
   * ========================================================================== */

  .nb-auth {
    --au-field-h: 56px;
    display: block;
    width: 100%;
    color: var(--nb-color-text);
  }

  .nb-auth__step { display: grid; gap: var(--nb-space-4); }
  .nb-auth__step[hidden] { display: none; }

  .nb-auth__head { display: grid; gap: var(--nb-space-2); }

  .nb-auth__eyebrow {
    font-size: var(--nb-fs-xs);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--nb-color-accent);
  }

  .nb-auth__title {
    margin: 0;
    font-family: var(--nb-font-heading);
    font-size: clamp(1.4rem, 3.5vw + 0.6rem, 1.9rem);
    line-height: 1.12;
    letter-spacing: -0.02em;
    color: var(--nb-color-text-strong);
    text-wrap: balance;
  }

  .nb-auth__lead {
    margin: 0;
    font-size: var(--nb-fs-sm);
    line-height: 1.5;
    color: var(--nb-color-text-muted);

    & strong { color: var(--nb-color-text-strong); font-weight: 700; white-space: nowrap; }
  }

  /* ---------- Champs ---------- */

  .nb-auth__field { display: grid; gap: var(--nb-space-1-5, 6px); }

  .nb-auth__grid {
    display: grid;
    gap: var(--nb-space-3);
    grid-template-columns: 1fr;
  }

  .nb-auth__label {
    font-size: var(--nb-fs-sm);
    font-weight: 600;
    color: var(--nb-color-text-strong);
  }

  .nb-auth__optional {
    font-weight: 400;
    color: var(--nb-color-text-faint);
  }

  .nb-auth__input {
    width: 100%;
    min-width: 0;
    height: var(--au-field-h);
    padding: 0 var(--nb-space-4);
    font: inherit;
    font-size: 1rem;
    color: var(--nb-color-text-strong);
    background: var(--nb-color-surface);
    border: 1.5px solid var(--nb-color-border-strong);
    border-radius: var(--nb-radius-md);
    transition: border-color var(--nb-dur-fast) var(--nb-ease-standard), box-shadow var(--nb-dur-fast) var(--nb-ease-standard);

    &::placeholder { color: var(--nb-color-text-faint); }
    &:hover { border-color: var(--nb-color-border-hover); }
    &:focus-visible {
      outline: none;
      border-color: var(--nb-color-accent);
      box-shadow: 0 0 0 3px var(--nb-color-accent-glow);
    }
    &[aria-invalid="true"] { border-color: var(--nb-color-danger); }
  }

  .nb-auth__phone {
    display: grid;
    grid-template-columns: auto 1fr;
    border: 1.5px solid var(--nb-color-border-strong);
    border-radius: var(--nb-radius-md);
    background: var(--nb-color-surface);
    overflow: hidden;
    transition: border-color var(--nb-dur-fast) var(--nb-ease-standard), box-shadow var(--nb-dur-fast) var(--nb-ease-standard);

    &:focus-within {
      border-color: var(--nb-color-accent);
      box-shadow: 0 0 0 3px var(--nb-color-accent-glow);
    }
    & .nb-auth__input {
      border: 0;
      border-radius: 0;
      box-shadow: none;
      letter-spacing: 0.04em;
      font-variant-numeric: tabular-nums;
    }
  }

  .nb-auth__prefix {
    display: inline-flex;
    align-items: center;
    padding-inline: var(--nb-space-4) var(--nb-space-3);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--nb-color-text-strong);
    background: var(--nb-color-surface-alt);
    border-inline-end: 1px solid var(--nb-color-border);
  }

  .nb-auth__password {
    position: relative;

    & .nb-auth__input { padding-inline-end: calc(var(--au-field-h) + 4px); }
  }

  .nb-auth__eye {
    position: absolute;
    inset-block: 0;
    inset-inline-end: 0;
    width: var(--au-field-h);
    display: grid;
    place-items: center;
    background: none;
    border: 0;
    color: var(--nb-color-text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    border-radius: 0 var(--nb-radius-md) var(--nb-radius-md) 0;

    &:hover { color: var(--nb-color-text-strong); }
    &:focus-visible { outline: 2px solid var(--nb-color-accent); outline-offset: -3px; }
  }

  .nb-auth__hint {
    margin: 0;
    font-size: var(--nb-fs-xs);
    color: var(--nb-color-text-muted);
  }

  .nb-auth__error {
    margin: 0;
    min-height: 0;
    font-size: var(--nb-fs-xs);
    font-weight: 600;
    color: var(--nb-color-danger);

    &:empty { display: none; }
  }

  .nb-auth__check {
    display: flex;
    align-items: center;
    gap: var(--nb-space-3);
    font-size: var(--nb-fs-sm);
    color: var(--nb-color-text);
    cursor: pointer;

    & input {
      width: 20px;
      height: 20px;
      margin: 0;
      accent-color: var(--nb-color-accent);
      flex: 0 0 auto;
    }
  }

  /* ---------- Actions ---------- */

  .nb-auth__actions { display: grid; gap: var(--nb-space-2); }

  .nb-auth__submit {
    width: 100%;
    min-height: var(--au-field-h);
    justify-content: center;
    gap: var(--nb-space-2);
    font-weight: 700;
    white-space: normal;

    & i { font-size: 1.25em; }
  }

  .nb-auth__links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--nb-space-2);
    font-size: var(--nb-fs-sm);
  }

  .nb-auth__links-sep { color: var(--nb-color-text-faint); }

  .nb-auth__link {
    padding: var(--nb-space-2) 0;
    background: none;
    border: 0;
    font: inherit;
    font-size: var(--nb-fs-sm);
    font-weight: 600;
    color: var(--nb-color-accent);
    text-decoration: none;
    cursor: pointer;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    gap: 6px;

    &:hover { text-decoration: underline; }
    &:disabled { color: var(--nb-color-text-disabled); cursor: default; text-decoration: none; }
    &:focus-visible { outline: 2px solid var(--nb-color-accent); outline-offset: 2px; border-radius: var(--nb-radius-sm); }
  }

  .nb-auth__countdown {
    font-variant-numeric: tabular-nums;
    color: var(--nb-color-text-muted);
    font-weight: 500;

    &:empty { display: none; }
  }

  .nb-auth__legal {
    margin: 0;
    font-size: var(--nb-fs-xs);
    line-height: 1.5;
    color: var(--nb-color-text-muted);
    text-align: center;

    & a { color: var(--nb-color-text); text-decoration: underline; }
  }

  /* ---------- Bandeaux (GUEST_ACCOUNT, ACCOUNT_NOT_FOUND...) ---------- */

  .nb-auth__banner {
    display: grid;
    gap: var(--nb-space-2);
    padding: var(--nb-space-3) var(--nb-space-4);
    margin-block-end: var(--nb-space-4);
    background: var(--nb-color-surface);
    border: 1px solid var(--nb-color-border);
    border-inline-start: 3px solid var(--nb-color-info);
    border-radius: var(--nb-radius-md);
    box-shadow: var(--nb-shadow-sm);
    font-size: var(--nb-fs-sm);
    color: var(--nb-color-text);

    &[hidden] { display: none; }
    &.is-warning { border-inline-start-color: var(--nb-color-warning); }
    &.is-danger  { border-inline-start-color: var(--nb-color-danger); }
    &.is-success { border-inline-start-color: var(--nb-color-success); }

    & .nb-auth__banner-cta {
      justify-self: start;
      min-height: 40px;
    }
  }

  .nb-auth__demo {
    display: flex;
    align-items: center;
    gap: var(--nb-space-2);
    padding: var(--nb-space-2) var(--nb-space-3);
    background: var(--nb-color-surface);
    border: 1px dashed var(--nb-color-border-strong);
    border-radius: var(--nb-radius-md);
    font-size: var(--nb-fs-xs);
    color: var(--nb-color-text-muted);

    &[hidden] { display: none; }
    & code {
      font-family: var(--nb-font-mono);
      font-size: 1rem;
      font-weight: 700;
      letter-spacing: 0.2em;
      color: var(--nb-color-text-strong);
    }
  }

  /* ---------- Parcours claim ---------- */

  .nb-auth__perks {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--nb-space-2);

    & li {
      display: flex;
      align-items: center;
      gap: var(--nb-space-3);
      font-size: var(--nb-fs-sm);
    }
    & i {
      flex: 0 0 auto;
      width: 32px;
      height: 32px;
      display: grid;
      place-items: center;
      border-radius: var(--nb-radius-sm);
      background: var(--nb-color-accent-soft);
      color: var(--nb-color-accent);
      font-size: 1.1rem;
    }
  }

  .nb-auth__known-phone {
    display: flex;
    align-items: center;
    gap: var(--nb-space-3);
    padding: var(--nb-space-3) var(--nb-space-4);
    background: var(--nb-color-surface);
    border: 1px solid var(--nb-color-border);
    border-radius: var(--nb-radius-md);
    box-shadow: var(--nb-shadow-xs);
    font-size: var(--nb-fs-sm);
    font-weight: 600;
    color: var(--nb-color-text-strong);

    & i { color: var(--nb-color-success); font-size: 1.4rem; flex: 0 0 auto; }
  }

  /* ---------- Succes / notices ---------- */

  .nb-auth__step--done,
  .nb-auth--notice {
    display: grid;
    justify-items: center;
    text-align: center;
    gap: var(--nb-space-4);
  }

  .nb-auth__done-icon {
    font-size: 3.5rem;
    line-height: 1;
    color: var(--nb-color-success);

    &.nb-auth__done-icon--info   { color: var(--nb-color-info); }
    &.nb-auth__done-icon--danger { color: var(--nb-color-danger); }
  }

  /* ---------- Etat occupe ---------- */

  .nb-auth.is-busy .nb-auth__submit { pointer-events: none; }

  @media (min-width: 480px) {
    .nb-auth__grid { grid-template-columns: 1fr 1fr; }
  }

  @media (prefers-reduced-motion: reduce) {
    .nb-auth__input, .nb-auth__phone { transition: none; }
  }


  /* ==========================================================================
   * SAISIE OTP 6 CASES
   * ========================================================================== */

  .nb-otp { display: grid; gap: var(--nb-space-2); }

  .nb-otp__label {
    font-size: var(--nb-fs-sm);
    font-weight: 600;
    color: var(--nb-color-text-strong);
  }

  .nb-otp__boxes {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 44px));
    gap: 8px;
    justify-content: start;
  }

  .nb-otp__box {
    width: 100%;
    aspect-ratio: 44 / 56;
    min-height: 52px;
    padding: 0;
    text-align: center;
    font-family: var(--nb-font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--nb-color-text-strong);
    background: var(--nb-color-surface);
    border: 1.5px solid var(--nb-color-border-strong);
    border-radius: var(--nb-radius-md);
    caret-color: var(--nb-color-accent);
    transition: border-color var(--nb-dur-fast) var(--nb-ease-standard), box-shadow var(--nb-dur-fast) var(--nb-ease-standard), transform var(--nb-dur-fast) var(--nb-ease-spring);

    &:focus-visible {
      outline: none;
      border-color: var(--nb-color-accent);
      box-shadow: 0 0 0 3px var(--nb-color-accent-glow);
    }
    &.is-filled { border-color: var(--nb-color-text-strong); }
    &.is-error  { border-color: var(--nb-color-danger); animation: nb-otp-shake 0.4s var(--nb-ease-out-quart); }
  }

  @keyframes nb-otp-shake {
    20%, 60% { transform: translateX(-4px); }
    40%, 80% { transform: translateX(4px); }
  }

  @media (min-width: 400px) {
    .nb-otp__boxes { grid-template-columns: repeat(6, 48px); gap: 10px; }
  }

  @media (prefers-reduced-motion: reduce) {
    .nb-otp__box { transition: none; }
    .nb-otp__box.is-error { animation: none; }
  }


  /* ==========================================================================
   * MODALE DE CONNEXION (bottom sheet mobile, centre desktop)
   * ========================================================================== */

  .nb-auth-modal__panel {
    display: flex;
    flex-direction: column;
    max-height: 90dvh;
  }

  .nb-auth-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--nb-space-3);
    padding: var(--nb-space-4) var(--nb-space-5) var(--nb-space-3);
    border-block-end: 1px solid var(--nb-color-border-alt);
  }

  .nb-auth-modal__brand {
    display: flex;
    align-items: center;
    gap: var(--nb-space-3);
    min-width: 0;
  }

  .nb-auth-modal__mark,
  .au-brand__mark {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: var(--nb-radius-md);
    background: var(--nb-color-accent);
    color: var(--nb-color-accent-contrast);
    font-family: var(--nb-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    flex: 0 0 auto;
  }

  .nb-auth-modal__title {
    font-family: var(--nb-font-heading);
    font-weight: 700;
    font-size: var(--nb-fs-md);
    color: var(--nb-color-text-strong);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .nb-auth-modal__close {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    background: var(--nb-color-surface-alt);
    border: 0;
    border-radius: var(--nb-radius-pill);
    color: var(--nb-color-text);
    font-size: 1.25rem;
    cursor: pointer;
    flex: 0 0 auto;

    &:hover { background: var(--nb-color-surface-sunk); }
    &:focus-visible { outline: 2px solid var(--nb-color-accent); outline-offset: 2px; }
  }

  .nb-auth-modal__body {
    padding: var(--nb-space-5) var(--nb-space-5) calc(var(--nb-space-6) + env(safe-area-inset-bottom));
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  @media (min-width: 768px) {
    dialog.nb-auth-modal > .nb-auth-modal__panel { max-width: 460px; }
    .nb-auth-modal__body { padding: var(--nb-space-6) var(--nb-space-7) var(--nb-space-7); }
  }


  /* ==========================================================================
   * COQUILLE DES PAGES DEDIEES (layout/auth.php)
   * ========================================================================== */

  .nb-app--auth { background: var(--nb-color-bg); }

  .au-shell {
    min-height: 100dvh;
    display: grid;
    grid-template-rows: auto 1fr auto;
  }

  .au-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--nb-space-3);
    padding: var(--nb-space-4) var(--nb-space-4) 0;
  }

  .au-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--nb-space-2);
    text-decoration: none;
    color: var(--nb-color-text-strong);
    min-height: 44px;
  }

  .au-brand__name {
    font-family: var(--nb-font-heading);
    font-weight: 800;
    letter-spacing: 0.02em;
  }

  .au-topbar__space {
    padding: 4px 10px;
    border-radius: var(--nb-radius-pill);
    background: var(--nb-color-surface);
    border: 1px solid var(--nb-color-border);
    font-size: var(--nb-fs-xs);
    font-weight: 600;
    color: var(--nb-color-text-muted);
  }

  .au-main {
    display: grid;
    align-content: start;
    justify-items: center;
    gap: var(--nb-space-4);
    padding: var(--nb-space-5) var(--nb-space-4) var(--nb-space-8);
  }

  .au-card {
    width: 100%;
    max-width: 440px;
    padding: var(--nb-space-5);
    background: var(--nb-color-surface);
    border: 1px solid var(--nb-color-border);
    border-radius: var(--nb-radius-xl);
    box-shadow: var(--nb-shadow-md);
  }

  .au-alt {
    margin: 0;
    font-size: var(--nb-fs-sm);
    color: var(--nb-color-text-muted);
    text-align: center;

    & a { color: var(--nb-color-accent); font-weight: 600; text-decoration: none; }
    & a:hover { text-decoration: underline; }
  }

  .au-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--nb-space-2);
    padding: var(--nb-space-4) var(--nb-space-4) calc(var(--nb-space-5) + env(safe-area-inset-bottom));
    font-size: var(--nb-fs-xs);
    color: var(--nb-color-text-faint);
  }

  .au-footer__link {
    color: var(--nb-color-text-muted);
    text-decoration: none;
    min-height: 44px;
    display: inline-flex;
    align-items: center;

    &:hover { color: var(--nb-color-text-strong); text-decoration: underline; }
  }

  [data-space="vendor"] .au-brand__mark { background: var(--nb-color-info); }
  [data-space="admin"]  .au-brand__mark { background: var(--nb-color-text-strong); }

  @media (min-width: 768px) {
    .au-topbar { padding: var(--nb-space-6) var(--nb-space-8) 0; }
    .au-main { padding: var(--nb-space-10) var(--nb-space-6) var(--nb-space-12); }
    .au-card { padding: var(--nb-space-8); }
  }
}