/* Login Page Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #0a0a0a;
    color: #ffffff;
    font-family: 'Sarabun', Arial, sans-serif;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: 
        radial-gradient(circle at 20% 50%, #1a1a2e 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, #16213e 0%, transparent 50%);
}

.login-container {
    background: rgba(25, 25, 25, 0.9);
    border: 1px solid #333;
    border-radius: 10px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: bold;
}

h1 {
    font-size: 24px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.subtitle {
    color: #888;
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #bbb;
    font-size: 14px;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 12px;
    background: #1a1a1a;
    border: 1px solid #444;
    border-radius: 5px;
    color: #fff;
    font-size: 16px;
    transition: all 0.3s ease;
}

input[type="text"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

input[type="text"]::placeholder,
input[type="password"]::placeholder {
    color: #666;
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 5px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.error-message {
    background: rgba(220, 53, 69, 0.2);
    border: 1px solid #dc3545;
    border-radius: 5px;
    padding: 12px;
    margin-bottom: 20px;
    color: #ff6b7a;
    font-size: 14px;
    text-align: center;
}

.footer-text {
    text-align: center;
    margin-top: 30px;
    color: #666;
    font-size: 12px;
}

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

.login-container {
    animation: fadeIn 0.5s ease-out;
}