/* ============================================
   AL PASO DANCE STUDIO - Login Styles
   Glassmorphism dark theme
   ============================================ */

/* ---- FONDO ---- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.login-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(107, 45, 107, 0.05) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 80%, rgba(74, 14, 78, 0.04) 0%, transparent 50%),
    #140A18;
  z-index: 0;
}

/* ---- CONTENEDOR ---- */
.login-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  padding: 1.5rem;
}

/* ---- VISTAS (show/hide) ---- */
.login-vista {
  display: none;
  width: 100%;
}

.login-vista.active {
  display: block;
  animation: cardAppear 0.6s ease-out;
}

/* ---- CARD ---- */
.login-card {
  background: rgba(18, 18, 18, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 2.5rem 2rem;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(255, 255, 255, 0.02),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.login-card:hover {
  border-color: rgba(67, 4, 64, 0.25);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(255, 255, 255, 0.03),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

@keyframes cardAppear {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ---- LOGO ---- */
.login-logo {
  text-align: center;
  margin-bottom: 1.5rem;
  animation: logoFadeIn 0.8s ease-out;
}

.login-logo img {
  width: 140px;
  height: auto;
  mix-blend-mode: screen;
  filter: drop-shadow(0 4px 20px rgba(255, 255, 255, 0.08));
  transition: transform 0.3s ease;
}

.login-logo img:hover {
  transform: scale(1.05);
}

@keyframes logoFadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- TITULOS ---- */
.login-title {
  font-family: 'Inter', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--blanco);
  text-align: center;
  margin-bottom: 0.3rem;
  letter-spacing: -0.5px;
}

.login-subtitle {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  color: var(--blanco-suave);
  text-align: center;
  margin-bottom: 2rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 300;
}

/* ---- SELECTOR DE ROL ---- */
.login-roles {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.8rem;
  margin: 1.5rem 0;
}

.login-role-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  padding: 1.5rem 0.8rem;
  background: rgba(26, 26, 26, 0.6);
  border: 1px solid var(--borde);
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--blanco);
  font-family: 'DM Sans', sans-serif;
}

.login-role-card:hover {
  border-color: rgba(67, 4, 64, 0.25);
  background: rgba(255, 255, 255, 0.03);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.04);
}

.login-role-icon {
  font-size: 2rem;
}

.login-role-text {
  font-family: 'Inter', sans-serif;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--blanco-suave);
}

/* ---- FORMULARIO ---- */
.login-card .form-group {
  margin-bottom: 1.4rem;
}

.login-card .form-group label {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--blanco-suave);
  margin-bottom: 0.6rem;
  font-weight: 500;
}

.login-card .form-input {
  width: 100%;
  padding: 0.9rem 1.2rem;
  background: rgba(26, 26, 26, 0.95);
  border: 1px solid var(--borde);
  border-radius: 12px;
  color: var(--blanco);
  font-size: 0.95rem;
  font-family: 'DM Sans', sans-serif;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  outline: none;
}

.login-card .form-input:focus {
  border-color: var(--blanco);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.06), 0 0 20px rgba(255, 255, 255, 0.03);
  background: rgba(30, 30, 30, 0.95);
}

.login-card .form-input::placeholder {
  color: #555;
  font-weight: 300;
}

/* ---- BOTON LOGIN ---- */
.login-btn {
  width: 100%;
  padding: 1rem;
  margin-top: 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 14px;
  position: relative;
  overflow: hidden;
}

.login-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.15),
    transparent
  );
  transition: left 0.5s ease;
}

.login-btn:hover::before {
  left: 100%;
}

.login-btn .btn-text,
.login-btn .btn-loader {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.login-btn.loading .btn-text {
  display: none;
}

.login-btn.loading .btn-loader {
  display: inline-flex !important;
}

.login-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
}

/* Spinner pequeno para boton */
.spinner-small {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(10, 10, 10, 0.3);
  border-top-color: var(--fondo);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ---- MENSAJE DE ERROR ---- */
.error-message {
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid rgba(231, 76, 60, 0.3);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  color: #e74c3c;
  font-size: 0.85rem;
  font-weight: 500;
  text-align: center;
  animation: errorShake 0.4s ease;
}

@keyframes errorShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

/* ---- LINK VOLVER ---- */
.back-link {
  display: block;
  text-align: center;
  margin-top: 1.8rem;
  color: var(--blanco-suave);
  font-size: 0.85rem;
  font-weight: 400;
  transition: color 0.3s ease;
  text-decoration: none;
}

.back-link:hover {
  color: var(--blanco);
}

.back-arrow {
  display: inline-block;
  transition: transform 0.3s ease;
  margin-right: 0.2rem;
}

.back-link:hover .back-arrow {
  transform: translateX(-4px);
}

/* ---- BACK LINK BTN ---- */
.back-link-btn {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: 1.5rem;
  color: var(--blanco-suave);
  font-size: 0.85rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  transition: color 0.3s;
}

.back-link-btn:hover {
  color: var(--blanco);
}

.back-link-btn:hover .back-arrow {
  transform: translateX(-4px);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 480px) {
  .login-container {
    padding: 1rem;
  }

  .login-card {
    padding: 2rem 1.5rem;
    border-radius: 20px;
  }

  .login-logo img {
    width: 110px;
  }

  .login-title {
    font-size: 1.2rem;
  }

  .login-subtitle {
    font-size: 0.75rem;
    margin-bottom: 1.5rem;
  }

  .login-btn {
    border-radius: 12px;
  }

  .login-roles {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .login-role-card {
    flex-direction: row;
    padding: 1rem 1.2rem;
    gap: 1rem;
  }

  .login-role-icon {
    font-size: 1.5rem;
  }
}

@media (max-width: 360px) {
  .login-card {
    padding: 1.5rem 1.2rem;
  }

  .login-title {
    font-size: 1.1rem;
  }
}

/* ---- PIN INPUT ---- */
.pin-container {
  display: flex;
  justify-content: center;
  margin: 1.8rem 0 1rem;
}

.pin-inputs {
  display: flex;
  gap: 0.8rem;
}

.pin-box {
  width: 60px;
  height: 68px;
  text-align: center;
  font-size: 1.8rem;
  font-weight: 700;
  font-family: 'Inter', monospace;
  color: var(--blanco);
  background: rgba(26, 26, 26, 0.95);
  border: 1.5px solid var(--borde);
  border-radius: 14px;
  outline: none;
  caret-color: transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
  -webkit-appearance: none;
}

.pin-box:focus {
  border-color: rgba(168, 85, 247, 0.7);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.15), 0 0 20px rgba(168, 85, 247, 0.1);
  transform: scale(1.06);
}

.pin-box.filled {
  border-color: rgba(168, 85, 247, 0.5);
  background: rgba(168, 85, 247, 0.06);
}

.pin-box.pin-error {
  border-color: rgba(231, 76, 60, 0.7);
  box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
  animation: errorShake 0.4s ease;
}

.pin-loader {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--blanco-suave);
  font-size: 0.85rem;
  margin: 1rem 0;
}

.pin-nombres {
  margin: 1.2rem 0 0.5rem;
  text-align: center;
}

.pin-nombres-titulo {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--blanco-suave);
  margin-bottom: 0.8rem;
}

.pin-nombre-btn {
  display: block;
  width: 100%;
  padding: 0.85rem 1rem;
  margin-bottom: 0.5rem;
  background: rgba(26, 26, 26, 0.8);
  border: 1px solid var(--borde);
  border-radius: 12px;
  color: var(--blanco);
  font-size: 0.95rem;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: left;
}

.pin-nombre-btn:hover {
  border-color: rgba(168, 85, 247, 0.5);
  background: rgba(168, 85, 247, 0.06);
  transform: translateX(4px);
}

@media (max-width: 480px) {
  .pin-box {
    width: 52px;
    height: 60px;
    font-size: 1.6rem;
    border-radius: 12px;
  }
  .pin-inputs {
    gap: 0.6rem;
  }
}

/* ---- ACCESIBILIDAD ---- */
@media (prefers-reduced-motion: reduce) {
  .login-card,
  .login-logo,
  .login-vista.active,
  .error-message {
    animation: none;
  }

  .login-btn::before {
    display: none;
  }
}