/* ═══════════════════════════════════════════════════════════════
   REGISTER.CSS — Estilos de register.html
   Extraído del monolito original. Sin cambios.
═══════════════════════════════════════════════════════════════ */


    /* ── Variables ───────────────────────────────────────────────── */
    :root {
      --bg:        #0d0d14;
      --surface:   #16161f;
      --card:      #1e1e2a;
      --border:    #2a2a3a;
      --accent:    #e63946;
      --accent2:   #ff6b6b;
      --text:      #f0f0f5;
      --muted:     #8888aa;
      --success:   #6bcb77;
      --radius:    10px;
      --font-head: 'Bebas Neue', sans-serif;
      --font-body: 'Nunito', sans-serif;
    }

    /* ── Reset ───────────────────────────────────────────────────── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      background: var(--bg);
      color: var(--text);
      font-family: var(--font-body);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }
    a      { color: inherit; text-decoration: none; }
    button { cursor: pointer; border: none; background: none; font-family: inherit; }

    /* ── Navbar ──────────────────────────────────────────────────── */
    .navbar {
      background: var(--surface);
      border-bottom: 2px solid var(--accent);
      padding: 0 2rem;
      height: 60px;
      display: flex;
      align-items: center;
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .navbar-logo {
      font-family: var(--font-head);
      font-size: 1.9rem;
      letter-spacing: 2px;
      color: var(--accent);
      line-height: 1;
    }
    .navbar-logo span { color: var(--text); }

    /* ── Layout centrado ─────────────────────────────────────────── */
    .page-center {
      flex: 1;
      display: flex;
      flex-direction: row;
      align-items: flex-start;
      justify-content: center;
      gap: 1.5rem;
      padding: 3rem 1rem;
      background: linear-gradient(135deg, #16161f 0%, #1a0a10 50%, #0d0d14 100%);
    }

    /* ── Tarjeta del registro ────────────────────────────────────── */
    .register-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 2.5rem 2rem;
      width: 100%;
      max-width: 420px;
      animation: fadeUp .4s ease both;
    }
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(20px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    /* Encabezado */
    .register-header {
      text-align: center;
      margin-bottom: 2rem;
    }
    .register-logo {
      font-family: var(--font-head);
      font-size: 2.4rem;
      letter-spacing: 3px;
      color: var(--accent);
      line-height: 1;
      margin-bottom: .4rem;
    }
    .register-logo span { color: var(--text); }
    .register-subtitle {
      color: var(--muted);
      font-size: .88rem;
    }

    /* ── Campos ──────────────────────────────────────────────────── */
    .field { margin-bottom: 1.1rem; }
    .field-label {
      display: block;
      font-size: .82rem;
      color: var(--muted);
      margin-bottom: .4rem;
      font-weight: 600;
    }
    .field-input {
      width: 100%;
      background: var(--surface);
      border: 1.5px solid var(--border);
      border-radius: var(--radius);
      color: var(--text);
      font-family: var(--font-body);
      font-size: .95rem;
      padding: .75rem 1rem;
      outline: none;
      transition: border-color .2s, box-shadow .2s;
    }
    .field-input:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(230, 57, 70, .12);
    }
    .field-input::placeholder { color: var(--muted); }
    .field-input.input-error  { border-color: var(--accent); }
    .field-input.input-ok     { border-color: var(--success); }

    /* Mensaje de error bajo el campo */
    .field-error {
      font-size: .78rem;
      color: var(--accent2);
      margin-top: .3rem;
      min-height: 18px;
      display: block;
    }

    /* Wrapper contraseña con botón ver/ocultar */
    .password-wrap { position: relative; }
    .password-wrap .field-input { padding-right: 3rem; }
    .toggle-password {
      position: absolute;
      right: .9rem;
      top: 50%;
      transform: translateY(-50%);
      color: var(--muted);
      font-size: 1.1rem;
      line-height: 1;
      transition: color .2s;
      padding: 0;
    }
    .toggle-password:hover { color: var(--text); }

    /* Indicador de fortaleza de contraseña */
    .strength-wrap {
      margin-top: .5rem;
      display: none;
    }
    .strength-wrap.visible { display: block; }
    .strength-bar {
      height: 4px;
      border-radius: 2px;
      background: var(--border);
      overflow: hidden;
      margin-bottom: .3rem;
    }
    .strength-fill {
      height: 100%;
      border-radius: 2px;
      transition: width .3s, background .3s;
      width: 0%;
    }
    .strength-text { font-size: .75rem; color: var(--muted); }

    /* ── Botón principal ─────────────────────────────────────────── */
    .btn-register {
      width: 100%;
      background: var(--accent);
      color: #fff;
      font-family: var(--font-body);
      font-weight: 900;
      font-size: 1rem;
      letter-spacing: 1px;
      padding: .85rem;
      border-radius: var(--radius);
      transition: background .2s, transform .1s;
      margin-top: .4rem;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: .5rem;
    }
    .btn-register:hover   { background: var(--accent2); }
    .btn-register:active  { transform: scale(.98); }
    .btn-register:disabled { opacity: .5; cursor: not-allowed; transform: none; }

    /* Spinner dentro del botón */
    .btn-spinner {
      width: 16px; height: 16px;
      border: 2px solid rgba(255,255,255,.35);
      border-top-color: #fff;
      border-radius: 50%;
      animation: spin .7s linear infinite;
      display: none;
    }
    .btn-register.loading .btn-spinner { display: block; }
    .btn-register.loading .btn-text    { display: none; }
    @keyframes spin { to { transform: rotate(360deg); } }

    /* ── Alertas globales ────────────────────────────────────────── */
    .alert {
      border-radius: var(--radius);
      padding: .75rem 1rem;
      font-size: .85rem;
      margin-bottom: 1.2rem;
      display: none;
      align-items: flex-start;
      gap: .5rem;
      line-height: 1.5;
    }
    .alert.visible    { display: flex; }
    .alert-error   {
      background: rgba(230,57,70,.1);
      border: 1px solid rgba(230,57,70,.4);
      color: var(--accent2);
    }
    .alert-success {
      background: rgba(107,203,119,.1);
      border: 1px solid rgba(107,203,119,.4);
      color: var(--success);
    }
    .alert-icon { font-size: 1rem; flex-shrink: 0; }

    /* ── Divisor ─────────────────────────────────────────────────── */
    .divider {
      display: flex;
      align-items: center;
      gap: .8rem;
      margin: 1.5rem 0 1.2rem;
      color: var(--muted);
      font-size: .8rem;
    }
    .divider::before,
    .divider::after {
      content: '';
      flex: 1;
      height: 1px;
      background: var(--border);
    }

    /* ── Enlace al login ─────────────────────────────────────────── */
    .login-link {
      text-align: center;
      font-size: .85rem;
      color: var(--muted);
    }
    .login-link a {
      color: var(--accent);
      font-weight: 700;
      transition: color .2s;
    }
    .login-link a:hover { color: var(--accent2); }

    /* ── Footer ──────────────────────────────────────────────────── */
    .footer {
      text-align: center;
      padding: 1.2rem;
      color: var(--muted);
      font-size: .78rem;
      border-top: 1px solid var(--border);
    }

    /* ── Responsive ──────────────────────────────────────────────── */
    @media (max-width: 480px) {
      .navbar { padding: 0 1rem; }
      .navbar-logo { font-size: 1.5rem; }
      .register-card { padding: 2rem 1.2rem; border-radius: 12px; }
      .register-logo { font-size: 2rem; }
    }

    /* ── Botón volver ─ junto a la tarjeta ──────────────────────── */
    .btn-back-fixed {
      position: static;
      flex-shrink: 0;
      align-self: flex-start;
      display: inline-flex;
      align-items: center;
      gap: .45rem;
      font-family: var(--font-body);
      font-size: .85rem;
      font-weight: 700;
      color: var(--text);
      background: var(--surface);
      border: 1.5px solid var(--border);
      border-radius: 7px;
      padding: .4rem 1rem;
      box-shadow: 0 2px 12px rgba(0,0,0,.4);
      transition: background .18s, border-color .18s, color .18s, box-shadow .18s;
      cursor: pointer;
      white-space: nowrap;
    }
    .btn-back-fixed:hover {
      background: rgba(230,57,70,.1);
      border-color: var(--accent);
      color: var(--accent);
      box-shadow: 0 4px 18px rgba(230,57,70,.25);
    }

    /* ── Paso 2: verificación de email ──────────────────────────── */
    .verify-hint {
      display: flex;
      align-items: center;
      gap: .5rem;
      flex-wrap: wrap;
      font-size: .88rem;
      color: var(--muted);
      background: rgba(107,203,119,.06);
      border: 1px solid rgba(107,203,119,.2);
      border-radius: 8px;
      padding: .75rem 1rem;
      margin-bottom: 1.2rem;
      line-height: 1.5;
    }
    .verify-hint strong { color: var(--success); }
    .verify-hint .icon  { width: 16px; height: 16px; color: var(--success); flex-shrink: 0; }

    /* Input de código — centrado y con tipografía monoespaciada */
    .code-input {
      text-align: center;
      letter-spacing: .35em;
      font-size: 1.6rem;
      font-weight: 900;
      padding: .65rem 1rem;
    }

    /* En pantallas muy pequeñas, volver a fixed para no romperse */
    @media (max-width: 560px) {
      .page-center { flex-direction: column; align-items: center; }
      .btn-back-fixed {
        position: fixed;
        top: calc(60px + 1rem);
        left: 1rem;
        z-index: 999;
      }
    }