/* ==========================================================================
   INICIO DE SESIÓN DE ADMINISTRACIÓN - QUILLOTA / PLATAFORMA IMPULSA
   Arquitectura CSS Nativa Modular (SMACSS / BEM)
   ========================================================================== */

:root {
  --admin-bg-deep: #080a14;
  --admin-bg-surface: #0f1322;
  --admin-blue-dark: #0f1131;
  --admin-brand-green: #90B937;
  --admin-brand-green-hover: #7ea32e;
  --admin-brand-green-glow: rgba(144, 185, 55, 0.25);
  --admin-brand-orange: #EC6824;
  --admin-text-main: #f8fafc;
  --admin-text-muted: #94a3b8;
  --admin-text-subtle: #64748b;
  --admin-card-bg: rgba(15, 19, 34, 0.82);
  --admin-card-border: rgba(255, 255, 255, 0.12);
  --admin-input-bg: rgba(8, 10, 20, 0.7);
  --admin-input-border: rgba(255, 255, 255, 0.12);
  --admin-input-focus: #90B937;
  --admin-radius-sm: 8px;
  --admin-radius-md: 12px;
  --admin-radius-lg: 20px;
  --admin-radius-full: 9999px;
  --font-titles: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
}

/* Reset / Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body.admin-login-body {
  min-height: 100dvh;
  background-color: var(--admin-bg-deep);
  font-family: var(--font-body);
  color: var(--admin-text-main);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  position: relative;
  overflow-x: hidden;
  padding: 1.5rem 1rem;
}

/* Fondo de Imagen con Overlay Oscuro */
.admin-login-bg {
  position: fixed;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
  pointer-events: none;
}

.admin-login-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 10, 20, 0.85) 0%, rgba(15, 17, 49, 0.88) 100%);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* Header Institucional */
.admin-login-header {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem 0;
  text-align: center;
}

.admin-login-logo {
  height: 72px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 16px rgba(0, 0, 0, 0.4));
  transition: transform 0.3s ease;
}

.admin-login-logo:hover {
  transform: scale(1.03);
}

.admin-login-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.75rem;
  padding: 0.3rem 0.95rem;
  background: rgba(144, 185, 55, 0.1);
  border: 1px solid rgba(144, 185, 55, 0.25);
  border-radius: var(--admin-radius-full);
  font-family: var(--font-titles);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--admin-brand-green);
  text-transform: uppercase;
}

.admin-login-badge-dot {
  width: 6px;
  height: 6px;
  background-color: var(--admin-brand-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--admin-brand-green);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

/* Main Container & Card (Borde Neutro sin color) */
.admin-login-main {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 450px;
  margin: auto 0;
  padding: 0.5rem 0;
}

.admin-card {
  background: var(--admin-card-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--admin-card-border);
  border-radius: var(--admin-radius-lg);
  padding: 2.5rem 2.25rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.admin-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

/* Card Header */
.admin-card-header {
  text-align: center;
  margin-bottom: 2rem;
}

.admin-card-title {
  font-family: var(--font-titles);
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 0.45rem;
}

.admin-card-subtitle {
  font-size: 0.875rem;
  color: var(--admin-text-muted);
  font-weight: 400;
  line-height: 1.4;
}

/* Alert Notification */
.admin-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: var(--admin-radius-md);
  font-size: 0.85rem;
  line-height: 1.4;
  margin-bottom: 1.5rem;
  animation: fadeInDown 0.3s ease-out;
}

.admin-alert--error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fca5a5;
}

.admin-alert--success {
  background: rgba(144, 185, 55, 0.12);
  border: 1px solid rgba(144, 185, 55, 0.35);
  color: #d9f99d;
}

.admin-alert-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 1px;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Form Styles */
.admin-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.admin-form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.admin-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: #cbd5e1;
  font-family: var(--font-titles);
  letter-spacing: 0.01em;
}

.admin-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.admin-input-icon {
  position: absolute;
  left: 1rem;
  color: var(--admin-text-subtle);
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}

.admin-input {
  width: 100%;
  height: 48px;
  padding: 0 1rem 0 2.75rem;
  background: var(--admin-input-bg);
  border: 1px solid var(--admin-input-border);
  border-radius: var(--admin-radius-md);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.admin-input::placeholder {
  color: var(--admin-text-subtle);
}

.admin-input:focus {
  outline: none;
  border-color: var(--admin-brand-green);
  background: rgba(15, 19, 34, 0.95);
  box-shadow: 0 0 0 3px var(--admin-brand-green-glow);
}

.admin-input-wrapper:focus-within .admin-input-icon {
  color: var(--admin-brand-green);
}

.admin-input--password {
  padding-right: 3rem;
}

.admin-toggle-pwd {
  position: absolute;
  right: 0.75rem;
  background: transparent;
  border: none;
  color: var(--admin-text-subtle);
  padding: 0.4rem;
  cursor: pointer;
  border-radius: var(--admin-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}

.admin-toggle-pwd:hover {
  color: #ffffff;
}

/* Remember me */
.admin-form-options {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-top: -0.25rem;
}

.admin-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  cursor: pointer;
  user-select: none;
  font-size: 0.85rem;
  color: var(--admin-text-muted);
  transition: color 0.2s ease;
}

.admin-checkbox-label:hover {
  color: #ffffff;
}

.admin-checkbox {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.admin-checkbox-custom {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--admin-input-border);
  background: var(--admin-input-bg);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  color: transparent;
}

.admin-checkbox:checked + .admin-checkbox-custom {
  background: var(--admin-brand-green);
  border-color: var(--admin-brand-green);
  color: var(--admin-blue-dark);
}

.admin-checkbox:focus-visible + .admin-checkbox-custom {
  outline: 2px solid var(--admin-brand-green);
  outline-offset: 2px;
}

/* Buttons */
.admin-btn-primary {
  width: 100%;
  height: 50px;
  background: linear-gradient(135deg, var(--admin-brand-green) 0%, #7da32f 100%);
  color: var(--admin-blue-dark);
  font-family: var(--font-titles);
  font-size: 1rem;
  font-weight: 800;
  border: none;
  border-radius: var(--admin-radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  box-shadow: 0 10px 20px -5px rgba(144, 185, 55, 0.4);
  transition: all 0.25s ease;
  text-decoration: none;
  position: relative;
}

.admin-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 24px -5px rgba(144, 185, 55, 0.55);
  filter: brightness(1.05);
}

.admin-btn-primary:active {
  transform: translateY(0);
}

/* Secondary Action (Sin separador) */
.admin-return-wrap {
  margin-top: 1rem;
}

.admin-btn-return {
  width: 100%;
  height: 46px;
  background: rgba(255, 255, 255, 0.04);
  color: #e2e8f0;
  font-family: var(--font-titles);
  font-size: 0.9rem;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--admin-radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.admin-btn-return:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(144, 185, 55, 0.4);
  color: #ffffff;
  transform: translateY(-1px);
}

.admin-btn-return svg {
  color: var(--admin-brand-green);
  transition: transform 0.2s ease;
}

.admin-btn-return:hover svg {
  transform: translateX(-3px);
}

/* Security Notice */
.admin-notice {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--admin-text-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

/* Footer */
.admin-login-footer {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 1.25rem 0 0.5rem 0;
  font-size: 0.78rem;
  color: var(--admin-text-subtle);
  line-height: 1.6;
}

.admin-login-footer p:first-child {
  color: var(--admin-text-muted);
  font-weight: 500;
}

.hidden {
  display: none !important;
}

/* Responsive adjustments */
@media (max-width: 480px) {
  body.admin-login-body {
    padding: 1rem 0.75rem;
  }
  .admin-card {
    padding: 2rem 1.5rem;
    border-radius: var(--admin-radius-md);
  }
  .admin-card-title {
    font-size: 1.5rem;
  }
  .admin-login-logo {
    height: 60px;
  }
}