/* assets/style.css */
:root {
    --primary-color: #2c5282;
    --background-color: #f1f5f9;
    --card-bg-color: #ffffff;
    --text-color: #334155;
    --border-color: #e2e8f0;
    --danger-color: #e53e3e;
}

body {
    font-family: 'Noto Sans Thai', sans-serif;
    background-color: var(--background-color);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-form {
    background-color: var(--card-bg-color);
    padding: 2.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: 1px solid var(--border-color);
}

.login-form h2 {
    text-align: center;
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.login-form p {
    text-align: center;
    color: #64748b;
    margin-bottom: 2rem;
}

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

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.input-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    font-size: 1rem;
    box-sizing: border-box;
}

.btn {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn:hover {
    background-color: #2a4365;
}

.error-message {
    background-color: #fed7d7;
    color: var(--danger-color);
    padding: 0.75rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    border: 1px solid #fbcfe8;
}