/* ============================================
   SISTEMA +VENTAS - LOGIN CSS MODERNIZADO
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* Variables CSS para el sistema de login */
:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --primary-color: #667eea;
  --primary-dark: #5a67d8;
  --secondary-color: #764ba2;
  --accent-color: #48bb78;
  --surface-color: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.95);
  --text-primary: #2d3748;
  --text-secondary: #4a5568;
  --text-light: #718096;
  --border-color: #e2e8f0;
  --border-focus: #667eea;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --border-radius: 8px;
  --border-radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html,
body {
  height: 100%;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--primary-gradient);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: none;
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: var(--transition);
}

a:hover {
  color: var(--primary-dark);
}

/* Contenedor principal de login */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: var(--primary-gradient);
  padding: 2rem 1rem;
}

/* Formas de fondo animadas */
.background-shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.shape-1 {
  position: absolute;
  top: -30%;
  left: -30%;
  width: 120%;
  height: auto;
  opacity: 0.1;
  transform: rotate(45deg);
  animation: float 20s ease-in-out infinite;
}

.shape-1 path {
  fill: rgba(255, 255, 255, 0.3);
}

.shape-2 {
  position: absolute;
  bottom: -30%;
  right: -30%;
  width: 120%;
  height: auto;
  opacity: 0.1;
  transform: rotate(-30deg);
  animation: float 25s ease-in-out infinite reverse;
}

.shape-2 path {
  fill: rgba(255, 255, 255, 0.2);
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(45deg); }
  50% { transform: translateY(-20px) rotate(50deg); }
}

/* Tarjeta de login moderna */
.login-card {
  position: relative;
  background: var(--surface-glass);
  backdrop-filter: blur(20px);
  width: 100%;
  max-width: 420px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 3rem 2.5rem;
  z-index: 2;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Logo del sistema */
.logo {
  margin-bottom: 2rem;
}

.logo img {
  width: 100px;
  height: auto;
  margin: 0 auto;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

/* Títulos */
.login-card h1 {
  font-family: 'Inter', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-weight: 400;
}

/* Formulario moderno */
.login-form {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Grupos de input con label flotante */
.input-group {
  position: relative;
  margin-bottom: 1.5rem;
}

.input-group input {
  display: block;
  width: 100%;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.9);
  padding: 1rem 1.25rem 0.75rem;
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  color: var(--text-primary);
  transition: var(--transition);
  outline: none;
  backdrop-filter: blur(10px);
}

.input-group input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  background: rgba(255, 255, 255, 1);
}

/* Label flotante mejorado */
.input-group label {
  position: absolute;
  top: 50%;
  left: 1.25rem;
  transform: translateY(-50%);
  background: transparent;
  color: var(--text-light);
  font-size: 1rem;
  font-weight: 400;
  pointer-events: none;
  padding: 0 0.5rem;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.input-group input:focus + label,
.input-group input:valid + label,
.input-group input:not(:placeholder-shown) + label {
  top: 0;
  transform: translateY(-50%) scale(0.85);
  color: var(--border-focus);
  background: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

/* Asterisco requerido */
.gl-form-asterisk {
  color: #e53e3e;
  font-weight: 600;
}

/* Opciones (Remember & Forgot) */
.options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  margin: 1rem 0;
}

.remember-me {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.remember-me input {
  cursor: pointer;
  accent-color: var(--primary-color);
  transform: scale(1.1);
}

.remember-me label {
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 500;
  position: static;
  transform: none;
  background: none;
  padding: 0;
}

.forgot-password a {
  color: var(--text-secondary);
  font-weight: 600;
  transition: var(--transition);
}

.forgot-password a:hover {
  color: var(--primary-color);
}

/* Botón de login moderno */
.btn-login {
  background: var(--primary-gradient);
  border: none;
  border-radius: var(--border-radius);
  color: white;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  padding: 1rem 0;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.btn-login::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

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

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

/* Texto de registro */
.signup-text {
  margin-top: 2rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.signup-text a {
  font-weight: 600;
  color: var(--primary-color);
}

.signup-text a:hover {
  color: var(--primary-dark);
}

/* Elementos adicionales del sistema +ventas */
.logo-empresa {
  position: relative;
  width: 100%;
  height: auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-bottom: 2rem;
}

.logo-empresa img {
  width: 180px;
  height: auto;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

/* Login box body para compatibilidad */
.login-box-body {
  background: var(--surface-glass);
  backdrop-filter: blur(20px);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 3rem 2.5rem;
}

.login-box-body p {
  font-weight: 500;
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.login-box-body form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.login-box-body form input {
  border-radius: var(--border-radius);
  outline: none;
  border: 2px solid var(--border-color);
  padding: 1rem 1.25rem;
  font-size: 1rem;
  color: var(--text-primary);
  letter-spacing: 0.025em;
  background: rgba(255, 255, 255, 0.9);
  transition: var(--transition);
}

.login-box-body form input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  background: rgba(255, 255, 255, 1);
}

.login-box-body form button {
  border-radius: var(--border-radius);
  width: 100%;
  text-transform: uppercase;
  font-weight: 600;
  background: var(--primary-gradient);
  outline: none;
  border: none;
  color: white;
  padding: 1rem;
  margin-top: 1rem;
  font-size: 1rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.login-box-body form button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.login-box-body form button:hover::before {
  left: 100%;
}

.login-box-body form button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Contenedor fluido centrado */
.login-box-body form .content-fluid {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 1rem;
}

/* reCAPTCHA moderno */
.g-recaptcha {
  position: relative;
  max-width: 100%;
  display: flex;
  justify-content: center;
  transform: scale(0.95);
  -webkit-transform: scale(0.95);
  margin: 1.5rem 0;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* Link recuperar contraseña */
.link-recuperar {
  padding-top: 1.5rem;
  width: 100%;
  text-align: center;
}

.link-recuperar a {
  color: var(--primary-color);
  font-weight: 500;
  transition: var(--transition);
}

.link-recuperar a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* Verifica SUNAT logo */
.verifica-sunat {
  padding-top: 1.5rem;
  width: 100%;
  text-align: center;
}

.verifica-sunat img {
  width: 140px;
  height: auto;
  text-align: center;
  opacity: 0.8;
  transition: var(--transition);
}

.verifica-sunat img:hover {
  opacity: 1;
}

/* Resultado login */
#resultLogin {
  width: 100%;
  text-align: center;
  margin-top: 1rem;
}

#resultLogin img {
  border-radius: 50%;
  width: 80px;
  height: 80px;
  box-shadow: var(--shadow-md);
  border: 3px solid rgba(255, 255, 255, 0.8);
}

/* Contenedor de login responsive */
.log-cont {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
  margin: 0;
  background: var(--primary-gradient);
}

.log-cont .login-box,
.log-cont .register-box {
  position: relative;
  margin: 0 auto;
  padding: 0;
  top: 0;
  width: 100%;
  max-width: 420px;
}

/* Fondo de pantalla moderno */
#fondP {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--primary-gradient);
  background-size: cover;
  overflow: hidden;
  z-index: -1;
}

#fondP:before {
  content: "";
  background: rgba(0, 0, 0, 0.1);
  position: absolute;
  top: 0;
  width: 100vw;
  height: 100vh;
  left: 0;
  right: 0;
  z-index: -1;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.8) 0%, rgba(118, 75, 162, 0.8) 100%);
}

#fondP .fnd {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.1);
  z-index: -1;
  overflow-y: auto;
}

/* Formulario con iconos mejorado */
#form-login .has-feedback {
  display: flex;
  align-items: stretch;
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

#form-login .has-feedback:focus-within {
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  background: rgba(255, 255, 255, 1);
}

#form-login .has-feedback span {
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  width: 52px;
  height: 52px;
  text-align: center;
  color: white;
  font-size: 1.125rem;
}

#form-login .has-feedback .ico1 {
  border-radius: var(--border-radius) 0 0 0;
}

#form-login .has-feedback .ico2 {
  border-radius: 0 0 0 var(--border-radius);
}

#form-login .has-feedback input {
  flex: 1;
  border: none;
  outline: none;
  padding: 1rem 1.25rem;
  font-size: 1rem;
  color: var(--text-primary);
  letter-spacing: 0.025em;
  background: transparent;
}

#form-login .has-feedback input::placeholder {
  color: var(--text-light);
}

.login-box-body form #ingUsuario {
  border-radius: 0 var(--border-radius) 0 0;
}

.login-box-body form #ingPassword {
  border-radius: 0 0 var(--border-radius) 0;
}

/* Responsive design */
@media (max-width: 768px) {
  .login-card {
    width: 95%;
    padding: 2rem 1.5rem;
    margin: 1rem;
  }

  .login-card h1 {
    font-size: 1.75rem;
  }

  .btn-login {
    font-size: 0.95rem;
    padding: 0.875rem 0;
  }

  .logo-empresa img {
    width: 150px;
  }

  .verifica-sunat img {
    width: 120px;
  }

  #resultLogin img {
    width: 60px;
    height: 60px;
  }
}

@media (max-width: 480px) {
  .options {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .login-card {
    padding: 1.5rem 1rem;
  }

  .login-card h1 {
    font-size: 1.5rem;
  }

  .subtitle {
    font-size: 0.875rem;
  }

  #form-login .has-feedback {
    flex-direction: column;
  }

  #form-login .has-feedback span {
    width: 100%;
    height: 40px;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
  }

  #form-login .has-feedback input {
    border-radius: 0 0 var(--border-radius) var(--border-radius);
  }
}

/* Animaciones adicionales */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-card {
  animation: fadeInUp 0.8s ease-out;
}

.login-card > * {
  animation: fadeInUp 0.8s ease-out;
  animation-fill-mode: both;
}

.login-card .logo { animation-delay: 0.1s; }
.login-card h1 { animation-delay: 0.2s; }
.login-card .subtitle { animation-delay: 0.3s; }
.login-card .login-form { animation-delay: 0.4s; }

/* Estados de carga */
.btn-login.loading {
  position: relative;
  color: transparent;
}

.btn-login.loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  top: 50%;
  left: 50%;
  margin-left: -10px;
  margin-top: -10px;
  border: 2px solid transparent;
  border-top-color: white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Mejoras de accesibilidad */
.input-group input:focus,
.btn-login:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Modo oscuro */
@media (prefers-color-scheme: dark) {
  :root {
    --surface-color: #2d3748;
    --surface-glass: rgba(45, 55, 72, 0.95);
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-light: #a0aec0;
    --border-color: #4a5568;
  }
}