.ef-preferred-source {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.ksr-isik.ksr-isik,
.ksr-isik.ksr-isik *,
.ksr-isik.ksr-isik::before,
.ksr-isik.ksr-isik::after {
    box-sizing: border-box;
}

.ksr-isik.ksr-isik {
    --ksr-angle: 0deg;
    --ksr-background: #202124;
    --ksr-text: #e8eaed;
    display: inline-flex;
    position: relative;
    align-items: center;
    gap: 11px;
    max-width: 100%;
    padding: 12px 20px;
    color: var(--ksr-text);
    background:
        linear-gradient(var(--ksr-background), var(--ksr-background)) padding-box,
        conic-gradient(from var(--ksr-angle), #ea4335, #fbbc05, #34a853, #4285f4, #ea4335) border-box;
    border: 2px solid transparent;
    border-radius: 14px;
    box-shadow: 0 4px 20px rgba(66, 133, 244, .18);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 14.5px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -.008em;
    text-decoration: none !important;
    transition: box-shadow .25s ease, transform .25s ease;
}

.ksr-isik.ksr-isik:hover,
.ksr-isik.ksr-isik:focus-visible {
    color: #fff;
    box-shadow: 0 8px 26px rgba(66, 133, 244, .34);
    transform: translateY(-2px);
}

.ksr-isik.ksr-isik:focus-visible {
    outline: 3px solid rgba(66, 133, 244, .35);
    outline-offset: 3px;
}

.ksr-isik .ksr-is-g {
    display: grid;
    flex: 0 0 22px;
    width: 22px;
    height: 22px;
    place-items: center;
    font-size: 0;
}

.ksr-isik .ksr-is-g::before {
    content: "G";
    background: conic-gradient(from -38deg, #4285f4 0 25%, #34a853 25% 43%, #fbbc05 43% 63%, #ea4335 63% 82%, #4285f4 82% 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font: 800 22px/1 Arial, sans-serif;
}

.ksr-isik .ksr-is-tac {
    position: absolute;
    top: -10px;
    right: -9px;
    display: grid;
    width: 24px;
    height: 24px;
    place-items: center;
    color: #fff;
    background: linear-gradient(140deg, #ffd66b, #f0b429 45%, #d98e04);
    border-radius: 50%;
    box-shadow: 0 2px 7px rgba(217, 142, 4, .5), inset 0 1px rgba(255, 255, 255, .55);
}

.ksr-isik .ksr-is-tac::after {
    content: "♛";
    font: 700 14px/1 Georgia, serif;
    transform: translateY(-1px);
}

html[data-theme="light"] .ef-preferred-source {
    border-top-color: #dbe4ea;
}

html[data-theme="light"] .ksr-isik.ksr-isik {
    --ksr-background: #fff;
    --ksr-text: #1f2933;
    box-shadow: 0 4px 18px rgba(66, 133, 244, .14);
}

html[data-theme="light"] .ksr-isik.ksr-isik:hover,
html[data-theme="light"] .ksr-isik.ksr-isik:focus-visible {
    color: #111827;
}

@media (max-width: 480px) {
    .ksr-isik.ksr-isik {
        width: 100%;
        justify-content: center;
        padding: 11px 15px;
        font-size: 13px;
        text-align: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ksr-isik.ksr-isik {
        transition: none;
    }
}