:root {
    --bg-color: #f4f7f9;
    --panel-bg: #ffffff;
    --navy-text: #1a365d;
    --navy-btn: #1a365d;
    --navy-btn-hover: #2c5282;
    --border-color: #e2e8f0;
    --gray-text: #718096;
    --error-color: #e53e3e;
}

body {
    font-family: 'Pretendard GOV', sans-serif;
    background-color: var(--bg-color);
    color: var(--navy-text);
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 1rem;
}

.panel {
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

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

h1 {
    font-size: 1.5rem;
    margin: 0;
    color: var(--navy-text);
}

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

label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 1rem;
}

.btn-login {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--navy-btn);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-login:hover {
    background-color: var(--navy-btn-hover);
}

.error-message {
    color: var(--error-color);
    background-color: #fff5f5;
    padding: 0.75rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    text-align: center;
}

.info-msg {
    font-size: 0.875rem;
    color: var(--gray-text);
    margin-bottom: 1.5rem;
    text-align: center;
}