@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700&display=swap');

:root {
    --color-weak: #e74c3c;
    --color-medium: #f39c12;
    --color-strong: #2ecc71;
    --color-bg: #f4f7f6;
    --color-card-bg: #ffffff;
    --color-text: #333;
    --color-gray: #bdc3c7;
    --border-radius: 8px;
}

.card {
    background-color: var(--color-card-bg);
    padding: 30px 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.subtitle {
    margin: 0 0 30px;
    text-align: center;
    color: #7f8c8d;
}

.form-group {
    margin-bottom: 20px;
}

    .form-group label {
        display: block;
        margin-bottom: 8px;
        font-weight: 700;
    }

.input-wrapper {
    position: relative;
}

    .input-wrapper input {
        width: 100%;
        padding: 12px 40px 12px 15px;
        border: 1px solid var(--color-gray);
        border-radius: var(--border-radius);
        font-size: 16px;
        box-sizing: border-box;
        transition: border-color 0.3s;
    }

        .input-wrapper input:focus {
            outline: none;
            border-color: #3498db;
        }

.toggle-password {
    position: absolute;
    top: 50%;
    right: 15px;
    transform: translateY(-50%);
    cursor: pointer;
    color: #95a5a6;
}

.strength-meter {
    height: 10px;
    background-color: #ecf0f1;
    border-radius: 10px;
    overflow: hidden;
    margin-top: -10px;
}

.strength-bar {
    height: 100%;
    width: 0;
    background-color: var(--color-weak);
    transition: width 0.3s, background-color 0.3s;
}

.strength-text {
    font-size: 14px;
    font-weight: 700;
    margin: 8px 0 15px;
    text-align: right;
    height: 1em;
}

.requirements-list {
    list-style: none;
    padding: 0;
    font-size: 14px;
    color: #7f8c8d;
}

    .requirements-list p {
        transition: color 0.3s;
    }

        .requirements-list p::before {
            font-family: "Font Awesome 5 Free";
            font-weight: 900;
            content: "\f00d";
            margin-right: 10px;
            color: var(--color-weak);
            transition: content 0.3s, color 0.3s;
        }

        .requirements-list p.valid {
            color: var(--color-text);
        }

            .requirements-list p.valid::before {
                content: "\f00c";
                color: var(--color-strong);
            }

.match-text {
    font-size: 14px;
    font-weight: bold;
}