:root {
        --top-bg: #ffffff;
        --top-text: #222;
        --top-muted: #666;
        --top-border: #e5e7eb;
        --top-button: var(--brand);
        --top-button-text: #ffffff;
        --top-cta: #d1d5db;
        --top-radius: 14px;
        --top-max-width: 600px;
    }

    /* container */
    .top-container {
        background: #fff;
        width: 100%;
        display: flex;
    }

    .top-content {
        max-width: var(--top-max-width);
        margin: 0 auto;
        background: var(--top-bg);
        min-height: 100vh;
        padding: 60px 20px;
        text-align: center;
    }

    /* logo */
    .top-logo {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        margin-bottom: 14px;
    }

    .top-logo-mark {
        width: 70px;
        height: 70px;
        border-radius: 50%;
        display: grid;
        place-items: center;
        font-weight: 800;
    }

    .top-logo-text {
        text-align: left;
        line-height: 1.1;
    }

    .top-logo-title {
        font-size: 27px;
        font-weight: 800;
    }

    .top-logo-sub {
        font-size: 12px;
        color: var(--top-muted);
    }

    /* login */
    .top-login-button {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 10px 18px;
        margin-bottom: 18px;
        border-radius: 999px;
        background: var(--top-button);
        color: var(--top-button-text);
        font-size: 14px;
        font-weight: 700;
        border: none;
        cursor: pointer;
        box-shadow: 0 8px 18px rgba(21, 148, 245, 0.25);
    }

    .top-btn {
        background-color: #c4c4c7;
        color: #000;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 10px 18px;
        margin-bottom: 18px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 700;
        border: none;
        box-shadow: 0 8px 18px rgba(21, 148, 245, 0.25);
    }

    /* hero image (dummy) */
    .top-hero-image img {
        position: relative !important;
        width: 90%;
        max-width: 600px;
        height: auto;
        margin: 0 auto 18px;
        object-fit: contain;
    }

    /* description */
    .top-description {
        font-size: 15px;
        font-weight: 700;
        line-height: 1.9;
        margin-bottom: 20px;
    }

    /* features */
    .top-features {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
        margin-bottom: 20px;
    }

    .top-feature {
        text-align: center;
    }

    .top-feature-icon {
        width: 44px;
        height: 44px;
        border-radius: 50%;
        border: 1px solid var(--top-border);
        display: grid;
        place-items: center;
        margin: 0 auto 8px;
        font-size: 24px;
        background-color: #c4c4c7;
    }

    .top-feature-title {
        font-size: 13px;
        font-weight: 800;
        margin-bottom: 4px;
    }

    .top-feature-text {
        font-size: 11px;
        color: var(--top-muted);
        line-height: 1.5;
    }

    .top-feature-text-min {
        font-size: 8px;
        color: var(--top-muted);
    }

    /* cta */
    .top-cta-button {
        width: 100%;
        padding: 12px;
        border-radius: 10px;
        background: var(--top-cta);
        border: none;
        font-size: 14px;
        font-weight: 800;
        cursor: pointer;
    }

    /* responsive */
    @media (max-width: 340px) {
        .top-features {
            grid-template-columns: 1fr;
        }
    }