/* Agregando variables CSS con colores del sistema incluyendo blanco */
:root {
  --color-primary: #1b9e88;
  --color-secondary: #fcbd05;
  --color-danger: #eb4335;
  --color-white: #ffffff;
  --color-black: #1a1a1a;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-400: #9ca3af;
  --color-gray-600: #4b5563;
  --color-gray-900: #111827;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  /* Gradiente mejorado con colores del sistema */
  background: linear-gradient(135deg, var(--color-primary) 0%, #157a6b 50%, var(--color-secondary) 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

/* Efecto de fondo animado */
body::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: backgroundMove 20s linear infinite;
  opacity: 0.3;
}

@keyframes backgroundMove {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(50px, 50px);
  }
}

.login-container {
  width: 100%;
  max-width: 440px;
  position: relative;
  z-index: 1;
}

.login-card {
  /* Usar color blanco de la variable */
  background: var(--color-white);
  border-radius: 24px;
  box-shadow: 0 24px 64px rgba(27, 158, 136, 0.25), 0 8px 16px rgba(0, 0, 0, 0.1);
  padding: 48px 40px;
  animation: slideUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.login-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  /* Gradiente con todos los colores del sistema */
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-danger) 100%);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Enhanced logo animation and styling */
.logo {
  text-align: center;
  margin-bottom: 40px;
}

.logo-icon {
  margin-bottom: 20px;
  display: inline-block;
  animation: float 3s ease-in-out infinite, rotate 20s linear infinite;
  filter: drop-shadow(0 8px 16px rgba(27, 158, 136, 0.2));
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes rotate {
  0% {
    transform: rotate(0deg) translateY(0px);
  }
  25% {
    transform: rotate(0deg) translateY(-12px);
  }
  50% {
    transform: rotate(360deg) translateY(0px);
  }
  75% {
    transform: rotate(360deg) translateY(-12px);
  }
  100% {
    transform: rotate(720deg) translateY(0px);
  }
}

.logo h1 {
  color: var(--color-primary);
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -1.5px;
  background: linear-gradient(135deg, var(--color-primary), #16836f);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo p {
  color: var(--color-gray-600);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-group label {
  font-weight: 600;
  /* Color gris oscuro */
  color: var(--color-gray-900);
  font-size: 14px;
  letter-spacing: -0.2px;
}

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

.input-icon {
  position: absolute;
  left: 16px;
  /* Color gris medio */
  color: var(--color-gray-400);
  pointer-events: none;
  transition: color 0.2s;
}

.input-wrapper:focus-within .input-icon {
  /* Color primario en foco */
  color: var(--color-primary);
}

.form-group input {
  width: 100%;
  padding: 14px 16px 14px 48px;
  /* Borde gris claro */
  border: 2px solid var(--color-gray-200);
  border-radius: 12px;
  font-size: 15px;
  /* Texto gris oscuro en fondo blanco */
  color: var(--color-gray-900);
  background: var(--color-white);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: inherit;
}

.form-group input::placeholder {
  /* Placeholder gris */
  color: var(--color-gray-400);
}

.form-group input:focus {
  outline: none;
  /* Borde primario en focus */
  border-color: var(--color-primary);
  /* Fondo gris muy claro */
  background: var(--color-gray-50);
  /* Shadow con color primario */
  box-shadow: 0 0 0 4px rgba(27, 158, 136, 0.1);
}

.form-group input:hover:not(:focus) {
  /* Borde gris en hover */
  border-color: var(--color-gray-400);
}

/* Toggle password button styles */
.toggle-password {
  position: absolute;
  right: 16px;
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  /* Color gris medio */
  color: var(--color-gray-400);
  transition: color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toggle-password:hover,
.toggle-password:focus {
  /* Color primario en hover/focus */
  color: var(--color-primary);
  outline: none;
}

.btn-login {
  /* Gradiente con color primario */
  background: linear-gradient(135deg, var(--color-primary) 0%, #157a6b 100%);
  /* Texto blanco */
  color: var(--color-white);
  padding: 16px 24px;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin-top: 8px;
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  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);
  /* Shadow con color primario */
  box-shadow: 0 12px 24px rgba(27, 158, 136, 0.4);
}

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

.btn-login:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-login svg {
  transition: transform 0.3s;
}

.btn-login:hover svg {
  transform: translateX(4px);
}

.error-message {
  /* Fondo muy claro con color danger */
  background: rgba(235, 67, 53, 0.1);
  color: var(--color-danger);
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(235, 67, 53, 0.3);
  font-size: 14px;
  text-align: center;
  font-weight: 500;
  animation: shake 0.4s cubic-bezier(0.36, 0.07, 0.19, 0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.error-message::before {
  content: "⚠";
  font-size: 18px;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  10%,
  30%,
  50%,
  70%,
  90% {
    transform: translateX(-8px);
  }
  20%,
  40%,
  60%,
  80% {
    transform: translateX(8px);
  }
}

.loading {
  text-align: center;
  padding: 24px;
}

.loading p {
  color: #64748b;
  font-size: 15px;
  font-weight: 500;
}

.spinner {
  width: 48px;
  height: 48px;
  /* Borde gris claro */
  border: 4px solid var(--color-gray-100);
  /* Borde superior con color primario */
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

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

/* Enhanced footer styling */
.footer {
  text-align: center;
  margin-top: 32px;
  color: rgba(255, 255, 255, 0.95);
  font-size: 14px;
  font-weight: 500;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Responsive */
@media (max-width: 480px) {
  .login-card {
    padding: 36px 28px;
    border-radius: 20px;
  }

  .logo h1 {
    font-size: 28px;
  }

  .logo p {
    font-size: 14px;
  }

  .form-group input {
    font-size: 16px;
  }
}

/* Estados de validación */
.form-group input:invalid:not(:placeholder-shown) {
  /* Borde danger para validación fallida */
  border-color: var(--color-danger);
}

.form-group input:valid:not(:placeholder-shown) {
  /* Borde primario para validación exitosa */
  border-color: var(--color-primary);
}