/* ============================================================
   FLOWPARK — login.css
   Vista de Inicio de Sesión (sin sidebar)
   Requiere: flowpark-base.css cargado antes
   BEM | CSS Grid + Flexbox
   ============================================================ */

/* ── Layout base ─────────────────────────────────────────────── */
.login-body {
  min-height: 100dvh;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  position: relative;
}

/* ── Fondo ───────────────────────────────────────────────────── */
.login-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.login-bg__dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 2px 2px, rgba(71,70,88,.18) 1px, transparent 0);
  background-size: 28px 28px;
}

.login-bg__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .18;
  animation: glowFloat 8s ease-in-out infinite alternate;
}

.login-bg__glow--1 {
  width: 600px; height: 600px;
  background: var(--color-primary);
  top: -200px; left: -150px;
}

.login-bg__glow--2 {
  width: 500px; height: 500px;
  background: var(--color-tertiary);
  bottom: -180px; right: -120px;
  animation-delay: -4s;
}

@keyframes glowFloat {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(30px, 20px) scale(1.08); }
}

/* ── Main container ──────────────────────────────────────────── */
.login-main {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 480px;
  width: 100%;
  min-height: 100dvh;
}

/* ── Panel izquierdo ─────────────────────────────────────────── */
.login-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2rem;
  padding: 3rem;
  background: linear-gradient(135deg, rgba(202,253,0,.04) 0%, transparent 60%);
  border-right: 1px solid var(--color-outline);
  position: relative;
  overflow: hidden;
}

.login-panel::before {
  content: 'FP';
  position: absolute;
  bottom: -3rem;
  left: -1rem;
  font-size: 18rem;
  font-weight: 900;
  color: rgba(202,253,0,.025);
  line-height: 1;
  letter-spacing: -.05em;
  user-select: none;
  pointer-events: none;
}

.login-panel__brand {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.login-panel__logo {
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.login-panel__version {
  font-size: .6rem;
  font-weight: 700;
  color: var(--color-muted);
  padding: .15rem .55rem;
  border: 1px solid var(--color-outline-strong);
  border-radius: var(--r-full);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.login-panel__tagline {
  font-size: 2.4rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -.02em;
}

.login-panel__tagline em {
  font-style: normal;
  color: var(--color-primary);
}

.login-panel__features {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  list-style: none;
}

.login-panel__feature {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .82rem;
  font-weight: 600;
  color: var(--color-muted);
  transition: color var(--ease);
}

.login-panel__feature .material-symbols-outlined {
  font-size: 1.1rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.login-panel__node {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .62rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .4rem .85rem;
  border: 1px solid var(--color-primary-border);
  border-radius: var(--r-full);
  background: var(--color-primary-muted);
  width: fit-content;
}

.login-panel__node-pulse {
  width: 7px; height: 7px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: nodePulse 1.8s ease-in-out infinite;
}

@keyframes nodePulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(202,253,0,.5); }
  50%     { box-shadow: 0 0 0 5px rgba(202,253,0,0); }
}

/* ── Login card ──────────────────────────────────────────────── */
.login-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 2.75rem;
  background: var(--color-surface-low);
  border-left: 1px solid var(--color-outline);
  overflow-y: auto;
  position: relative;
}

.login-card__header {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1.5rem;
}

.login-card__logo {
  font-size: 1rem;
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.login-card__subtitle {
  font-size: .6rem;
  font-weight: 700;
  color: var(--color-muted);
  padding: .15rem .55rem;
  border: 1px solid var(--color-outline-strong);
  border-radius: var(--r-full);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.login-card__title {
  font-size: 1.65rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  margin-bottom: .4rem;
  letter-spacing: -.01em;
}

.login-card__desc {
  font-size: .78rem;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
}

/* ── Alertas ─────────────────────────────────────────────────── */
.login-alert {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .7rem 1rem;
  border-radius: var(--r-md);
  font-size: .78rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  animation: alertIn .2s ease;
}

.login-alert[hidden] { display: none; }

@keyframes alertIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

.login-alert .material-symbols-outlined { font-size: 1.05rem; flex-shrink: 0; }

.login-alert--error {
  background: var(--color-error-muted);
  border: 1px solid var(--color-error-border);
  color: var(--color-error);
}

.login-alert--success {
  background: var(--color-primary-muted);
  border: 1px solid var(--color-primary-border);
  color: var(--color-primary);
}

/* ── Formulario ──────────────────────────────────────────────── */
.login-form {
  display: flex;
  flex-direction: column;
  gap: .85rem;
}

/* ── Campo ───────────────────────────────────────────────────── */
.login-field { display: flex; flex-direction: column; gap: .4rem; }

.login-field__label {
  font-size: .65rem;
  font-weight: 700;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: .07em;
}

.login-field__wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.login-field__icon {
  position: absolute;
  left: .85rem;
  font-size: 1rem;
  color: var(--color-muted);
  pointer-events: none;
  transition: color var(--ease);
}

.login-field__input {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-outline-strong);
  border-radius: var(--r-md);
  padding: .7rem 1rem .7rem 2.6rem;
  font-size: .85rem;
  font-family: var(--font);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.login-field__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(202,253,0,.1);
}

.login-field__input:focus + .login-field__icon,
.login-field__wrap:focus-within .login-field__icon {
  color: var(--color-primary);
}

.login-field__input::placeholder { color: var(--color-muted); opacity: .6; }

.login-field--error .login-field__input {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px var(--color-error-muted);
}

.login-field__error {
  font-size: .62rem;
  font-weight: 600;
  color: var(--color-error);
  min-height: .875rem;
  padding-left: .2rem;
}

/* Toggle contraseña */
.login-field__toggle {
  position: absolute;
  right: .6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem; height: 2rem;
  border-radius: var(--r-sm);
  color: var(--color-muted);
  transition: background var(--ease), color var(--ease);
}
.login-field__toggle:hover { background: var(--color-surface-high); color: #fff; }
.login-field__toggle .material-symbols-outlined { font-size: .95rem; }

/* ── Row recordar / olvidé ───────────────────────────────────── */
.login-form__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  flex-wrap: wrap;
}

/* ── Checkbox personalizado ──────────────────────────────────── */
.login-checkbox {
  display: flex;
  align-items: center;
  gap: .55rem;
  cursor: pointer;
  user-select: none;
}

.login-checkbox input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0; height: 0;
  pointer-events: none;
}

.login-checkbox__box {
  width: 1.1rem; height: 1.1rem;
  border: 1.5px solid var(--color-outline-strong);
  border-radius: .25rem;
  background: var(--color-surface);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: background var(--ease), border-color var(--ease);
}

.login-checkbox__check {
  font-size: .7rem;
  color: #0d0d1c;
  opacity: 0;
  transform: scale(.5);
  transition: opacity var(--ease), transform var(--ease);
}

.login-checkbox input:checked ~ .login-checkbox__box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.login-checkbox input:checked ~ .login-checkbox__box .login-checkbox__check {
  opacity: 1;
  transform: scale(1);
}

.login-checkbox__label {
  font-size: .75rem;
  font-weight: 600;
  color: var(--color-muted);
}

/* ── Links ───────────────────────────────────────────────────── */
.login-link {
  font-size: .75rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: opacity var(--ease);
}
.login-link:hover { opacity: .75; }
.login-link--sm   { font-size: .7rem; }

/* ── Botón submit ────────────────────────────────────────────── */
.login-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  width: 100%;
  padding: .85rem 1.25rem;
  background: var(--color-primary);
  color: #0d0d1c;
  border-radius: var(--r-md);
  font-size: .85rem;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-top: .35rem;
  transition: background var(--ease), box-shadow var(--ease), transform var(--ease), opacity var(--ease);
  position: relative;
  overflow: hidden;
}

.login-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.12) 0%, transparent 50%);
  pointer-events: none;
}

.login-btn:hover:not(:disabled) {
  background: #d4ff10;
  box-shadow: 0 0 28px rgba(202,253,0,.4);
  transform: translateY(-1px);
}

.login-btn:active:not(:disabled) { transform: scale(.98); }

.login-btn:disabled {
  opacity: .55;
  cursor: not-allowed;
  transform: none;
}

.login-btn__arrow { font-size: 1rem; }

/* Spinner inline */
.login-btn__spinner { display: flex; align-items: center; }
.login-btn__spinner[hidden] { display: none; }

.login-spinner {
  display: inline-block;
  width: 1rem; height: 1rem;
  border: 2px solid rgba(13,13,28,.3);
  border-top-color: #0d0d1c;
  border-radius: 50%;
  animation: spin .65s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Footer ──────────────────────────────────────────────────── */
.login-footer {
  font-size: .75rem;
  color: var(--color-muted);
  text-align: center;
  margin-top: 1.75rem;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet (< 860px) — ocultar panel izquierdo */
@media (max-width: 859px) {
  .login-main { grid-template-columns: 1fr; }
  .login-panel { display: none; }
  .login-card {
    justify-content: flex-start;
    padding: 2.5rem 1.75rem;
    min-height: 100dvh;
    border-left: none;
  }
}

/* Móvil (< 480px) */
@media (max-width: 479px) {
  .login-card { padding: 2rem 1.25rem; }
  .login-card__title { font-size: 1.35rem; }
  .login-form__row { flex-direction: column; align-items: flex-start; gap: .65rem; }
}

/* Shake on error */
.login-form--shake {
  animation: shake .4s ease;
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%     { transform: translateX(-8px); }
  40%     { transform: translateX(8px); }
  60%     { transform: translateX(-5px); }
  80%     { transform: translateX(5px); }
}