:root {
    --kf-bg-start: #07111f;
    --kf-bg-end: #0f2740;
    --kf-card: rgba(255, 255, 255, 0.96);
    --kf-text: #102033;
    --kf-muted: #5d6b7c;
    --kf-primary: #2563eb;
    --kf-accent: #f59e0b;
    --kf-border: rgba(255, 255, 255, 0.24);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--kf-text);
    background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.38), transparent 32rem), radial-gradient(circle at bottom right, rgba(245, 158, 11, 0.25), transparent 28rem), linear-gradient(135deg, var(--kf-bg-start), var(--kf-bg-end));
}

a {
    color: var(--kf-primary);
    text-decoration: none;
}

    a:hover {
        text-decoration: underline;
    }

.kf-shell {
    min-height: 100vh;
}

.kf-landing {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.kf-card {
    width: min(100%, 760px);
    padding: 3rem;
    text-align: center;
    background: var(--kf-card);
    border: 1px solid var(--kf-border);
    border-radius: 28px;
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
    backdrop-filter: blur(16px);
}

.kf-brand-mark {
    width: 76px;
    height: 76px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 22px;
    color: #ffffff;
    font-size: 1.55rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    background: linear-gradient(135deg, var(--kf-primary), var(--kf-accent));
    box-shadow: 0 14px 34px rgba(37, 99, 235, 0.28);
}

.kf-card h1 {
    margin: 0;
    font-size: clamp(2.4rem, 7vw, 4.8rem);
    line-height: 1;
    letter-spacing: -0.06em;
}

.kf-card h1:focus,
.kf-not-found-card h1:focus {
    outline: none;
}

.kf-tagline {
    margin: 1rem 0 0;
    color: var(--kf-primary);
    font-size: clamp(1.15rem, 3vw, 1.6rem);
    font-weight: 700;
}

.kf-status {
    max-width: 560px;
    margin: 1.5rem auto 0;
    color: var(--kf-muted);
    font-size: 1.08rem;
    line-height: 1.7;
}

.kf-focus {
    max-width: 620px;
    margin: 2rem auto 0;
    padding: 1.5rem;
    border-radius: 22px;
    background: rgba(37, 99, 235, 0.06);
    border: 1px solid rgba(37, 99, 235, 0.12);
}

    .kf-focus p {
        margin: 0 0 1rem;
        color: var(--kf-text);
        font-weight: 650;
    }

    .kf-focus ul {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.75rem;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .kf-focus li {
        padding: 0.8rem 1rem;
        border-radius: 14px;
        color: var(--kf-text);
        font-weight: 600;
        background: #ffffff;
        border: 1px solid rgba(16, 32, 51, 0.08);
    }

.kf-launching {
    margin: 2rem 0 0;
    color: var(--kf-accent);
    font-size: 1.25rem;
    font-weight: 800;
}

.kf-email {
    margin: 1rem 0 0;
    font-size: 1.05rem;
    font-weight: 700;
}

.kf-card footer {
    margin-top: 2rem;
    color: var(--kf-muted);
    font-size: 0.95rem;
}

.kf-not-found {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
    color: #ffffff;
}

.kf-not-found-card {
    width: min(100%, 620px);
    padding: 3rem 2rem;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
    backdrop-filter: blur(16px);
}

    .kf-not-found-card h1 {
        margin: 1rem 0 0;
        color: #ffffff;
        font-size: clamp(2rem, 6vw, 3.6rem);
        letter-spacing: -0.04em;
    }

    .kf-not-found-card p {
        max-width: 420px;
        margin: 1rem auto 0;
        color: rgba(255, 255, 255, 0.86);
        font-size: 1.1rem;
        line-height: 1.7;
    }

.kf-home-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 1.75rem;
    padding: 0.85rem 1.25rem;
    border-radius: 999px;
    color: #ffffff;
    font-weight: 800;
    background: linear-gradient(135deg, var(--kf-primary), var(--kf-accent));
    box-shadow: 0 14px 34px rgba(37, 99, 235, 0.28);
}

    .kf-home-link:hover {
        text-decoration: none;
    }

#blazor-error-ui {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0.75rem 1.25rem;
    color: #ffffff;
    background: #b91c1c;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.2);
}

    #blazor-error-ui .reload {
        color: #ffffff;
        margin-left: 1rem;
        font-weight: 700;
    }

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 1rem;
        top: 0.75rem;
    }

@media (max-width: 640px) {
    .kf-landing {
        padding: 1rem;
    }

    .kf-card {
        padding: 2rem 1.25rem;
        border-radius: 22px;
    }

    .kf-brand-mark {
        width: 64px;
        height: 64px;
        border-radius: 18px;
        font-size: 1.3rem;
    }

    .kf-focus {
        padding: 1rem;
    }

        .kf-focus ul {
            grid-template-columns: 1fr;
        }

        .kf-focus li {
            padding: 0.75rem;
        }

    .kf-card footer {
        font-size: 0.85rem;
    }
}