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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  color: #e2e8f0;
  position: relative;
  overflow: hidden;
}

.login-container {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 450px;
}

.login-card {
  background: rgba(30, 41, 59, 0.8);
  border-radius: 1.5rem;
  padding: 3rem 2.5rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(6, 182, 212, 0.2);
  backdrop-filter: blur(10px);
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.logo {
  width: 120px;
  height: auto;
  margin-bottom: 1rem;
  border-radius: 0.5rem;
}

.login-header h1 {
  font-size: 2rem;
  color: #06b6d4;
  margin-bottom: 0.5rem;
}

.login-header p {
  font-size: 1rem;
  color: #94a3b8;
}

.login-form {
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #cbd5e1;
  font-size: 0.95rem;
}

.form-group input {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid rgba(6, 182, 212, 0.3);
  background: rgba(15, 23, 42, 0.6);
  border-radius: 0.5rem;
  font-size: 1rem;
  color: #e2e8f0;
  transition: all 0.3s ease;
}

.form-group input:focus {
  outline: none;
  border-color: #06b6d4;
  background: rgba(15, 23, 42, 0.8);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.form-group input::placeholder {
  color: #64748b;
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #cbd5e1;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: #06b6d4;
}

.forgot-password {
  color: #06b6d4;
  text-decoration: none;
  transition: color 0.3s ease;
}

.forgot-password:hover {
  color: #0891b2;
  text-decoration: underline;
}

.btn {
  width: 100%;
  padding: 1rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  position: relative;
}

.btn-primary {
  background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
  color: white;
  margin-bottom: 1.5rem;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(6, 182, 212, 0.3);
}

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

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

.btn-text {
  display: inline-block;
}

.btn-primary.loading .btn-text {
  visibility: hidden;
}

.spinner {
  display: none;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top: 3px solid white;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: spin 0.8s linear infinite;
  position: absolute;
}

.btn-primary.loading .spinner {
  display: block;
}

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

.divider {
  position: relative;
  text-align: center;
  margin: 1.5rem 0;
}

.divider::before,
.divider::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 40%;
  height: 1px;
  background: rgba(6, 182, 212, 0.2);
}

.divider::before {
  left: 0;
}

.divider::after {
  right: 0;
}

.divider span {
  background: rgba(30, 41, 59, 0.8);
  padding: 0 1rem;
  color: #94a3b8;
  font-size: 0.9rem;
}

.btn-google {
  background: rgba(15, 23, 42, 0.8);
  color: #e2e8f0;
  border: 2px solid rgba(6, 182, 212, 0.3);
}

.btn-google:hover {
  background: rgba(15, 23, 42, 1);
  border-color: #06b6d4;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(6, 182, 212, 0.2);
}

.google-icon {
  width: 20px;
  height: 20px;
}

.signup-link {
  text-align: center;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(6, 182, 212, 0.2);
}

.signup-link p {
  color: #94a3b8;
  font-size: 0.95rem;
}

.signup-link a {
  color: #06b6d4;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.signup-link a:hover {
  color: #0891b2;
  text-decoration: underline;
}

.error-message {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid #ef4444;
  color: #fecaca;
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1.5rem;
  display: none;
  font-size: 0.9rem;
}

.error-message.show {
  display: block;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Decoraciones de fondo */
.background-decoration {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  overflow: hidden;
  z-index: 1;
  pointer-events: none;
}

.decoration-circle {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
  animation: float 20s infinite ease-in-out;
}

.decoration-1 {
  width: 400px;
  height: 400px;
  top: -200px;
  right: -200px;
  animation-delay: 0s;
}

.decoration-2 {
  width: 300px;
  height: 300px;
  bottom: -150px;
  left: -150px;
  animation-delay: -7s;
}

.decoration-3 {
  width: 250px;
  height: 250px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -14s;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

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

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

  .form-options {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }
}