/* ============================================================
   ScanOrder — Login
   Split screen a pantalla completa: ilustración de producto + copy
   a la izquierda (panel teal), formulario a la derecha con el logo
   ScanOrder arriba. Sin chip ni footer decorativo en el panel.

   Modelo de alto: en pantallas normales cada panel es exactamente
   100vh (no min-height) para que nunca aparezca scroll de página;
   overflow: hidden actúa como red de seguridad. En pantallas de poca
   altura (< 780px, ver media query al final) se libera el alto y se
   permite scroll de página para no recortar el panel de marca.
   ============================================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
}

.login-shell {
  display: grid;
  grid-template-columns: minmax(420px, 48%) 1fr;
  width: 100%;
  height: 100vh;
}

/* ---- Panel de marca ---- */
.login-brand {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 28px 52px 24px;
  color: var(--gray-0);
  overflow: hidden;

  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(145deg, var(--brand-500) 0%, var(--brand-700) 58%, var(--brand-800) 100%);
  background-size: 28px 28px, 28px 28px, 100% 100%;
  background-position: 0 0, 0 0;
}

/* El panel de marca no tiene chip ni footer: la ilustración + el copy
   se centran verticalmente ocupando todo el alto disponible. */
.login-brand-main {
  margin-top: auto;
  margin-bottom: auto;
}

/* ---- Ilustración: una sola imagen estática (preview-cards.png) ---- */
.login-illustration {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
}

.illu-preview-img {
  display: block;
  width: auto;
  height: auto;
  max-width: min(96%, 700px);
  max-height: 500px;
  filter: drop-shadow(0 28px 36px rgba(2, 20, 24, 0.28))
          drop-shadow(0 10px 14px rgba(2, 20, 24, 0.14));
}

/* ---- Titular + copy ---- */
.login-brand-copy {
  position: relative;
  z-index: 1;
  margin-top: 18px;
  text-align: center;
}

.login-brand-headline {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0;
}

.login-brand-sub {
  margin: 10px auto 0;
  max-width: 340px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.84rem;
  line-height: 1.5;
}

/* ---- Card / formulario ---- */
.login-card {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  padding: 40px 32px;
  overflow: hidden;
  background: var(--gray-0);
}

.login-card-inner {
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
}

/* ---- Logo sobre el formulario (PNG con fondo transparente) ---- */
.auth-logo-wrap {
  margin-bottom: 30px;
}

.auth-logo {
  display: block;
  width: 190px;
  max-width: 58%;
  height: auto;
}

.login-card-inner.shake {
  animation: shake 0.4s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes shake {
  10%, 90% { transform: translateX(-2px); }
  20%, 80% { transform: translateX(4px); }
  30%, 50%, 70% { transform: translateX(-4px); }
  40%, 60% { transform: translateX(4px); }
}

.login-title {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--gray-900);
  letter-spacing: 0;
}

.login-subtitle {
  margin-top: 5px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 28px;
}

.field-boxed {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  height: 48px;
  background: var(--gray-0);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field-boxed:hover:not(:focus-within) {
  border-color: var(--gray-400);
}

.field-boxed:focus-within {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

.field-icon {
  width: 18px;
  height: 18px;
  color: var(--gray-400);
  flex-shrink: 0;
}

.field-boxed input {
  flex: 1;
  min-width: 0;
  height: 100%;
  background: transparent;
  border: none;
  color: var(--gray-900);
  font-size: 0.94rem;
  font-family: var(--font-sans);
  outline: none;
}

.field-boxed input::placeholder {
  color: var(--gray-400);
}

.field-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-right: -6px;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--gray-400);
  flex-shrink: 0;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.field-toggle:hover {
  color: var(--gray-600);
  background: var(--gray-100);
}

.field-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
  color: var(--gray-600);
}

.field-toggle [data-lucide] {
  width: 18px;
  height: 18px;
}

.btn-login {
  width: 100%;
  height: 48px;
  background: var(--color-primary);
  color: var(--gray-0);
  font-size: 0.95rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: var(--shadow-sm);
}

.btn-login:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-login:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-login:focus-visible {
  outline: none;
  box-shadow: var(--shadow-md), var(--shadow-focus);
}

.btn-login:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.btn-login:disabled:hover {
  transform: none;
  box-shadow: var(--shadow-sm);
}

.spinner {
  display: inline-block;
  width: 15px;
  height: 15px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: var(--gray-0);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: -2px;
  margin-right: 8px;
}

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

.login-link-center {
  text-align: center;
  margin-top: -2px;
}

.link-muted {
  font-size: 0.83rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.link-muted:hover {
  color: var(--color-primary);
}

.link-muted:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}

.error-box {
  display: none;
  align-items: center;
  gap: 8px;
  background: var(--state-alerta-bg);
  border: 1px solid var(--state-alerta-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--state-alerta-text);
  font-size: 0.85rem;
  font-weight: 600;
}

.error-box.visible {
  display: flex;
  animation: errorIn 0.2s ease both;
}

@keyframes errorIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.error-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--state-alerta-border);
  color: var(--state-alerta-text);
  font-weight: 800;
  font-size: 0.78rem;
}

.success-box {
  display: none;
  align-items: flex-start;
  gap: 10px;
  background: var(--state-libre-bg);
  border: 1px solid var(--state-libre-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--state-libre-text);
  font-size: 0.85rem;
  line-height: 1.5;
}

.success-box-block {
  display: flex;
}

.success-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 1px;
  color: var(--state-libre-dot);
}

.success-hint {
  margin-top: 6px;
  color: var(--state-libre-text);
  opacity: 0.75;
  font-weight: 400;
}

.footer-text {
  margin-top: 28px;
  color: var(--gray-500);
  font-size: 0.78rem;
  text-align: center;
}

@media (max-width: 860px) {
  html, body {
    height: auto;
    overflow: auto;
  }
  .login-shell {
    grid-template-columns: 1fr;
    height: auto;
  }
  .login-brand {
    height: auto;
    padding: 20px 24px 18px;
  }
  .login-brand-main { margin: 0; }
  .login-illustration { display: none; }
  .login-brand-copy {
    margin-top: 18px;
    text-align: left;
  }
  .login-brand-headline {
    font-size: 1.35rem;
  }
  .login-brand-sub {
    max-width: none;
    margin-left: 0;
    font-size: 0.82rem;
  }
  .login-card {
    height: auto;
    padding: 34px 24px;
    overflow: visible;
  }
  .auth-logo-wrap {
    margin-bottom: 24px;
  }
}

/* Pantallas de poca altura (notebooks 13", ventanas a media pantalla):
   el split de 100vh no entra y el panel de marca quedaba recortado por
   overflow:hidden. Acá se libera el alto y se permite scroll de página. */
@media (min-width: 861px) and (max-height: 780px) {
  html, body {
    height: auto;
    overflow-y: auto;
  }
  .login-shell {
    height: auto;
  }
  .login-brand,
  .login-card {
    height: auto;
    min-height: 100vh;
  }
  .illu-preview-img {
    max-height: 360px;
  }
}