* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background: #f5f6f8;
    color: #222;
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Helvetica Neue",
        "Yu Gothic",
        "YuGothic",
        "Hiragino Kaku Gothic ProN",
        Meiryo,
        sans-serif;
}

/*
 * ============================================================
 * Login
 * ============================================================
 */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 460px;
    padding: 36px;
    border: 1px solid #ddd;
    border-radius: 12px;
    background: #fff;
    box-shadow:
        0 4px 18px rgba(0, 0, 0, 0.06);
}

.login-title {
    margin: 0 0 8px;
    font-size: 28px;
    text-align: center;
}

.login-subtitle {
    margin: 0 0 32px;
    color: #666;
    text-align: center;
}

.login-form-group {
    margin-bottom: 22px;
}

.login-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.login-form-group input[type="email"],
.login-form-group input[type="password"] {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #bbb;
    border-radius: 6px;
    font-size: 16px;
}

.login-form-group input:focus {
    outline: none;
    border-color: #555;
}

.login-remember {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}

.login-remember label {
    margin: 0;
    font-weight: normal;
}

.login-submit-button {
    width: 100%;
    padding: 13px;
    border: 0;
    border-radius: 6px;
    background: #222;
    color: #fff;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
}

.login-submit-button:hover {
    background: #444;
}

.login-error-box {
    margin-bottom: 24px;
    padding: 14px;
    border: 1px solid #d33;
    border-radius: 6px;
    background: #fff4f4;
    color: #a00;
}

.login-error-box ul {
    margin: 0;
    padding-left: 20px;
}

/*
 * ============================================================
 * Register
 * ============================================================
 */

.register-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
}

.register-card {
    width: 100%;
    max-width: 620px;
    padding: 40px;
    border: 1px solid #ddd;
    border-radius: 12px;
    background: #fff;
    box-shadow:
        0 4px 18px rgba(0, 0, 0, 0.06);
}

.register-title {
    margin: 0 0 8px;
    font-size: 28px;
    text-align: center;
}

.register-subtitle {
    margin: 0 0 28px;
    color: #666;
    text-align: center;
}

.register-notice {
    margin-bottom: 26px;
    padding: 14px 16px;
    border: 1px solid #d8d8d8;
    border-radius: 6px;
    background: #f8f8f8;
    color: #555;
    line-height: 1.6;
}

.register-form-group {
    margin-bottom: 22px;
}

.register-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.register-form-group input[type="text"],
.register-form-group input[type="email"],
.register-form-group input[type="password"] {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #bbb;
    border-radius: 6px;
    font-size: 16px;
}

.register-form-group input:focus {
    outline: none;
    border-color: #555;
}

.register-submit-button {
    width: 100%;
    padding: 13px;
    border: 0;
    border-radius: 6px;
    background: #222;
    color: #fff;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
}

.register-submit-button:hover {
    background: #444;
}

.register-error-box {
    margin-bottom: 24px;
    padding: 14px;
    border: 1px solid #d33;
    border-radius: 6px;
    background: #fff4f4;
    color: #a00;
}

.register-error-box ul {
    margin: 0;
    padding-left: 20px;
}

.register-login-link {
    margin-top: 24px;
    text-align: center;
}

.register-login-link a {
    color: #333;
}

@media (max-width: 700px) {
    .register-page {
        padding: 16px 12px;
    }

    .register-card {
        padding: 28px 20px;
    }

    .register-title {
        font-size: 24px;
    }
}

@media (max-width: 520px) {
    .login-page {
        padding: 16px 12px;
    }

    .login-card {
        padding: 28px 20px;
    }

    .login-title {
        font-size: 24px;
    }
}