@charset "utf-8";

/* 全体の中央寄せレイアウト */
.login-container {
    max-width: 360px;
    margin: 5rem auto;
    padding: 2rem;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

@media (max-width: 600px) {
    .login-container {
        margin: 3rem auto;
        padding: 1.5rem;
    }
}

/* 入力欄 */
.login-input {
    width: 100%;
    padding: 0.75rem 0.9rem;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    outline: none;
    transition: 0.2s;
}

.login-input:focus {
    border-color: #4a8f3c; /* 京大農学部っぽい緑 */
    box-shadow: 0 0 0 3px rgba(74,143,60,0.2);
}

/* ボタン */
.login-button {
    width: 100%;
    padding: 0.75rem;
    margin-top: 1rem;
    background: #4a8f3c;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: 0.2s;
}

.login-button:hover {
    background: #3a742f;
}

/* エラーメッセージ */
.error-message {
    color: #d9534f;
    background: #fcebea;
    padding: 0.6rem 0.9rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}