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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0a0a0a;
    height: 100vh;
    overflow: hidden;
}

.login-container {
    display: flex;
    height: 100vh;
}

/* Sección de imagen */
.login-image-section {
    flex: 1;
    position: relative;
    display: none;
}

.image-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 255, 140, 0.1) 0%, rgba(0, 0, 0, 0.8) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-info {
    text-align: center;
    color: white;
    padding: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.logo-icon {
    font-size: 3rem;
    color: #00ff8c;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: bold;
    color: #00ff8c;
}

.brand-tagline {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #cccccc;
}

.month-info {
    margin-top: 2rem;
}

.current-month {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.current-year {
    font-size: 1rem;
    color: #00ff8c;
}

/* Sección del formulario */
.login-form-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #1a1a1a;
    padding: 2rem;
}

.form-container {
    width: 100%;
    max-width: 400px;
}

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

.form-header h2 {
    color: #00ff8c;
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.form-header p {
    color: #cccccc;
    font-size: 1rem;
}

/* Formulario */
.login-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.alert {
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.alert-error {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.3);
    color: #dc3545;
}

.alert-success {
    background: rgba(0, 255, 140, 0.1);
    border: 1px solid rgba(0, 255, 140, 0.3);
    color: #00ff8c;
}

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

.form-label {
    display: block;
    color: #00ff8c;
    margin-bottom: 0.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #00ff8c;
    box-shadow: 0 0 0 2px rgba(0, 255, 140, 0.2);
}

.form-control::placeholder {
    color: #888;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 38px;
    background: none;
    border: none;
    color: #888;
    cursor: pointer;
    padding: 4px;
}

.toggle-password:hover {
    color: #00ff8c;
}

/* Opciones del formulario */
.form-options {
    margin-bottom: 1.5rem;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #cccccc;
    cursor: pointer;
    font-size: 0.9rem;
}

.checkbox-container input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #00ff8c;
    border-radius: 3px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-container input:checked + .checkmark {
    background: #00ff8c;
}

.checkbox-container input:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    color: #1a1a1a;
    font-size: 12px;
    font-weight: bold;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Botón de login */
.btn-login {
    width: 100%;
    padding: 14px;
    background: #00ff8c;
    color: #1a1a1a;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-login:hover {
    background: #00cc6f;
    transform: translateY(-1px);
}

.btn-login:disabled {
    background: #666;
    cursor: not-allowed;
    transform: none;
}

.btn-loading {
    display: none;
}

/* Footer del formulario */
.form-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: #888;
    font-size: 0.9rem;
}

.help-link {
    color: #00ff8c;
    text-decoration: none;
}

.help-link:hover {
    text-decoration: underline;
}

/* Responsive */
@media (min-width: 768px) {
    .login-image-section {
        display: block;
    }
}

@media (max-width: 767px) {
    .login-container {
        flex-direction: column;
    }
    
    .login-form-section {
        padding: 1rem;
    }
    
    .login-form {
        padding: 1.5rem;
    }
}