.t-submit {
    position: relative;
    overflow: hidden;
    background-color: #000 !important;
    color: #fff !important;
    border: 2px solid #000 !important;
    border-radius: 20px !important;
    cursor: pointer !important;
    outline: none !important;
    padding: 0px 15px !important;
    width: 160px !important;
    height: 50px !important;
    font-weight: 600 !important;
    display: block !important;
    margin: auto !important;
    z-index: 1;

    /* ❌ ПУЛЬСАЦИЯ УДАЛЕНА */
}

/* Блик — чистый, без хвостов */
.t-submit::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1) 10%,
        rgba(255, 255, 255, 0.4) 50%,
        rgba(255, 255, 255, 0.1) 90%,
        transparent
    );
    transform: skewX(-25deg) translateX(-100%);
    animation: sweep 4s infinite linear;
    z-index: -1;
}

@keyframes sweep {
    0%   { transform: skewX(-25deg) translateX(-100%); }
    100% { transform: skewX(-25deg) translateX(100%); }
}