/* ±âº» ÃʱâÈ­ */
:root { --primary-color: #1a73e8; --bg-color: #f0f2f5; }
* { box-sizing: border-box; margin: 0; padding: 0; }

body { 
    background: var(--bg-color); 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    min-height: 100vh; 
    font-family: 'Malgun Gothic', sans-serif; 
}

/* ·Î±×ÀÎ ¹Ú½º ÇÏÀ̺긮µå ¼³Á¤ */
.login-container { 
    width: 90%; 
    max-width: 420px; 
    background: #fff; 
    padding: 40px 30px; 
    border-radius: 12px; 
    box-shadow: 0 10px 25px rgba(0,0,0,0.1); 
}

.login-header { text-align: center; margin-bottom: 30px; }
.login-header h2 { color: var(--primary-color); font-size: 26px; margin-bottom: 8px; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 14px; color: #555; }

input { 
    width: 100%; 
    padding: 15px; 
    border: 1px solid #ddd; 
    border-radius: 8px; 
    font-size: 16px; 
    outline: none;
    transition: 0.3s;
}
input:focus { border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(26,115,232,0.1); }

button { 
    width: 100%; 
    padding: 15px; 
    background: var(--primary-color); 
    color: #fff; 
    border: none; 
    border-radius: 8px; 
    font-size: 16px; 
    font-weight: bold; 
    cursor: pointer; 
    transition: 0.3s;
}
button:hover { background: #1557b0; }

.error-msg { 
    color: #d93025; 
    background: #fce8e6; 
    padding: 12px; 
    border-radius: 6px; 
    font-size: 14px; 
    margin-bottom: 20px; 
    text-align: center;
}

/* ¸ð¹ÙÀÏ Àü¿ë ¹Ì¼¼ Á¶Á¤ */
@media (max-width: 480px) {
    .login-container { padding: 30px 20px; }
}