@charset "utf-8";

/* ログイン画面の配置 */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
    padding: 40px 20px;
}

.login-box {
    background: #ffffff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(161, 196, 253, 0.2);
    border: 2px solid #d4e4f7;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-box h2 {
    color: #4a90e2;
    font-size: 1.5rem;
    margin-top: 0;
    margin-bottom: 25px;
    letter-spacing: 2px;
}

/* 入力グループ（中央揃え） */
.form-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
}

.form-group label {
    font-size: 0.9rem;
    color: #5b7a96;
    margin-bottom: 8px;
    font-weight: bold;
}

.login-box input {
    width: 85%;
    max-width: 300px;
    padding: 12px;
    border: 2px solid #e1eaf4;
    border-radius: 8px;
    box-sizing: border-box;
    background-color: #f8fbff;
    color: #2c3e50;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.login-box input:focus {
    outline: none;
    border-color: #a1c4fd;
    background-color: #ffffff;
    box-shadow: 0 0 8px rgba(161, 196, 253, 0.4);
}

/* ログインボタン */
.btn-primary {
    width: 85%;
    max-width: 300px;
    margin: 10px auto;
    display: block;
    background: linear-gradient(90deg, #4fc3f7 0%, #0288d1 100%); /* 夏らしい海の色に */
    color: #ffffff; /* 文字色を白に */
    border: none;
    border-radius: 25px;
    padding: 12px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(2, 136, 209, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(2, 136, 209, 0.5);
    filter: brightness(1.1); /* ホバー時に少し明るく */
}




/* 下部のリンクエリア */
.form-footer {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px dashed #d4e4f7;
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.btn-secondary {
    display: inline-block;
    width: 85%;
    max-width: 300px;
    padding: 10px;
    background-color: #ffffff;
    color: #4a90e2;
    border: 2px solid #a1c4fd;
    border-radius: 25px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: bold;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.btn-secondary:hover {
    background-color: #f8fbff;
    border-color: #4a90e2;
    color: #2a6db5;
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(161, 196, 253, 0.2);
}

.link-back {
    color: #8da3b8;
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s ease;
    display: inline-flex;
    align-items: center;
}

.link-back::before {
    content: "←";
    margin-right: 6px;
    font-size: 0.9rem;
}

.link-back:hover {
    color: #4a90e2;
    text-decoration: underline;
}

/* エラーメッセージ */
.error {
    color: #e74c3c;
    font-size: 0.9rem;
    margin-bottom: 20px;
    background: #fdf2f2;
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #fadbd8;
}