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

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 1000px;
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-box {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    display: flex;
    min-height: 600px;
}

.login-left {
    flex: 1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.logo-section {
    text-align: center;
    margin-bottom: 50px;
}

.logo-section i {
    font-size: 80px;
    margin-bottom: 20px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.logo-section h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
}

.logo-section p {
    font-size: 16px;
    font-weight: 300;
    opacity: 0.9;
}

.features {
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
    font-size: 16px;
    animation: slideInLeft 0.5s ease-out backwards;
}

.feature-item:nth-child(1) {
    animation-delay: 0.1s;
}

.feature-item:nth-child(2) {
    animation-delay: 0.2s;
}

.feature-item:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.feature-item i {
    font-size: 24px;
    margin-right: 15px;
    background: rgba(255, 255, 255, 0.2);
    padding: 12px;
    border-radius: 10px;
}

.login-right {
    flex: 1;
    padding: 60px 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.login-form-container h2 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    margin-bottom: 30px;
    font-size: 14px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
}

.form-group label i {
    margin-right: 5px;
    color: #667eea;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.password-input {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    padding: 5px;
    transition: color 0.3s ease;
}

.toggle-password:hover {
    color: #667eea;
}

.form-check-label {
    font-size: 14px;
    color: #666;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

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

.login-footer {
    margin-top: 30px;
    text-align: center;
}

.login-footer p {
    font-size: 12px;
    color: #999;
}

.alert {
    border-radius: 10px;
    padding: 12px 15px;
    margin-bottom: 20px;
    animation: slideDown 0.3s ease-out;
}

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

/* Responsive */
@media (max-width: 768px) {
    .login-box {
        flex-direction: column;
    }
    
    .login-left {
        padding: 40px 30px;
    }
    
    .logo-section i {
        font-size: 60px;
    }
    
    .logo-section h1 {
        font-size: 24px;
    }
    
    .features {
        display: none;
    }
    
    .login-right {
        padding: 40px 30px;
    }
    
    .login-form-container h2 {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .login-left {
        padding: 30px 20px;
    }
    
    .login-right {
        padding: 30px 20px;
    }
}