.lk-cta-card {
    position: relative;
    width: 100%;
    max-width: 560px;
    margin: 40px auto 10px;
    overflow: visible;
    background: #fff;
    border-radius: 32px;
    box-shadow: 0 20px 35px -12px rgba(0, 0, 0, .08), 0 4px 12px rgba(0, 0, 0, .02);
    transition: transform .2s ease, box-shadow .2s ease;
}

.lk-cta-card::before,
.lk-cta-card::after {
    content: "";
    position: absolute;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
}

.lk-cta-card::before {
    top: -60px;
    left: -60px;
    background: radial-gradient(circle, rgba(255, 180, 80, .18) 0, rgba(255, 180, 80, 0) 70%);
}

.lk-cta-card::after {
    right: -50px;
    bottom: -50px;
    background: radial-gradient(circle, rgba(140, 90, 220, .12) 0, rgba(140, 90, 220, 0) 70%);
}

.lk-card-inner {
    position: relative;
    z-index: 2;
    padding: 1.75rem 1.75rem 2rem;
}

.lk-messenger-icon-relative {
    position: absolute;
    top: 18px;
    left: 18px;
    width: 80px;
    height: 80px;
    z-index: 1;
    opacity: .5;
    pointer-events: none;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    animation: lkFloat 3s ease-in-out 4 1s;
}

.lk-profile-row {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    flex-wrap: nowrap;
    margin-bottom: 1.8rem;
}

.lk-teacher-avatar {
    width: 70px;
    height: 70px;
    flex-shrink: 0;
    border-radius: 50%;
    background-color: #e4e9f2;
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    box-shadow: 0 8px 18px rgba(0, 0, 0, .05), 0 2px 4px rgba(0, 0, 0, .02);
    transition: transform .2s;
}

.lk-heading-group {
    flex: 1;
}

.lk-channel-name {
    margin-bottom: .2rem;
    color: #1a2634;
    font-size: 1.65rem;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -.3px;
}

.lk-channel-sub {
    color: #6c7a8f;
    font-size: .9rem;
    font-weight: 450;
    line-height: 1.4;
}

.lk-benefits-section {
    margin: 1rem 0 1.2rem;
    padding-right: .2rem;
}

.lk-benefit-line {
    display: flex;
    align-items: baseline;
    gap: .6rem;
    padding: .55rem 0;
    color: #2c3f4f;
    font-size: .98rem;
    font-weight: 450;
    border-bottom: 1px solid rgba(0, 0, 0, .03);
}

.lk-benefit-line:last-child {
    border-bottom: 0;
}

.lk-benefit-marker {
    width: 6px;
    height: 6px;
    margin-top: .65rem;
    flex-shrink: 0;
    opacity: .8;
    border-radius: 50%;
    background-color: #24A866;
}

.lk-benefit-text {
    flex: 1;
    line-height: 1.45;
}

.lk-closing-note {
    margin-top: .35rem;
    color: rgba(78, 84, 96, .72);
    text-align: center;
    font-family: 'LalezarFallback', 'Shabnam', 'Vazirmatn', sans-serif;
    font-size: .95rem;
    font-weight: 400;
    line-height: 1.9;
    letter-spacing: 0;
    opacity: .88;
}

.lk-button-wrapper {
    margin-top: .9rem;
}

.lk-cta-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .65rem;
    width: 100%;
    padding: .9rem 1.2rem;
    border: 0;
    border-radius: 56px;
    cursor: pointer;
    text-decoration: none;
    background-color: #24A866;
    box-shadow: 0 8px 20px -8px rgba(36, 168, 102, .3);
    transition: all .25s ease;
}

.lk-cta-button:hover {
    background-color: #1f9258;
    transform: translateY(-2px);
    box-shadow: 0 14px 26px -10px rgba(36, 168, 102, .42);
}

.lk-cta-button:active {
    transform: translateY(1px);
}

.lk-messenger-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.lk-button-text {
    color: #fff;
    font-family: 'Vazirmatn', 'IRANSansX', 'Shabnam', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: .2px;
}

.lk-cta-card:hover {
    box-shadow: 0 24px 44px -16px rgba(0, 0, 0, .12);
}

@keyframes lkFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

/* موبایل: بیشترین عرض ممکن */
@media (max-width: 767px) {
    .lk-cta-card {
        max-width: 100%;
        margin: 24px 0 10px;
        border-radius: 24px;
    }

    .lk-card-inner {
        padding: 1.5rem 1.1rem 1.8rem;
    }

    .lk-profile-row {
        gap: .9rem;
        margin-bottom: 1.4rem;
    }

    .lk-teacher-avatar {
        width: 58px;
        height: 58px;
    }

    .lk-channel-name {
        font-size: 1.4rem;
    }

    .lk-channel-sub {
        font-size: .8rem;
    }

    .lk-benefit-line {
        gap: .55rem;
        padding: .45rem 0;
        font-size: .88rem;
    }

    .lk-benefit-marker {
        width: 5px;
        height: 5px;
        margin-top: .55rem;
    }

    .lk-closing-note {
        font-size: .88rem;
        line-height: 1.8;
    }

    .lk-cta-button {
        padding: .8rem 1rem;
    }

    .lk-button-text {
        font-size: .9rem;
    }

    .lk-messenger-icon {
        width: 20px;
        height: 20px;
    }

    .lk-messenger-icon-relative {
        top: 10px;
        left: 8px;
        width: 72px;
        height: 72px;
        filter: none;
    }
}

@media (max-width: 380px) {
    .lk-card-inner {
        padding: 1.35rem 1rem 1.6rem;
    }

    .lk-channel-name {
        font-size: 1.25rem;
    }

    .lk-teacher-avatar {
        width: 52px;
        height: 52px;
    }

    .lk-benefit-text {
        font-size: .85rem;
    }

    .lk-closing-note {
        font-size: .82rem;
    }

    .lk-button-text {
        font-size: .85rem;
    }

    .lk-messenger-icon-relative {
        width: 64px;
        height: 64px;
    }
}

@media (min-width: 768px) {
    .lk-card-inner {
        padding: 2rem 2rem 2.2rem;
    }

    .lk-channel-name {
        font-size: 1.8rem;
    }

    .lk-benefit-line,
    .lk-closing-note {
        font-size: 1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .lk-messenger-icon-relative {
        animation: none;
    }

    .lk-cta-button,
    .lk-cta-card,
    .lk-teacher-avatar {
        transition: none;
    }
}