/* Tetris — «О проекте» + схема работы + 3 шага (ТЗ 05) */

.tt-about-project__inner {
    display: flex;
    flex-direction: column;
    gap: 40px;
}
.tt-about-project__head {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.tt-about-project__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.tt-about-project__text {
    display: flex;
    flex-direction: column;
    gap: 16px;
    /* Короткая текстовая колонка залипает и едет вдоль высокой колонки-картинки */
    position: sticky;
    top: 82px; /* 72px sticky-шапка + 10px отступ */
    align-self: start;
}
.tt-about-project__lead {
    margin: 0;
    font-family: var(--tt-font-body);
    font-size: 17px;
    line-height: 1.7;
    color: var(--tt-text);
}
.tt-about-project__lead--muted { color: var(--tt-text-2); }

.tt-about-project__media {
    height: 320px;
    border-radius: var(--tt-radius);
    overflow: hidden;
    background: repeating-linear-gradient(135deg, #EFEAE6 0 12px, #E4DCD5 12px 24px);
}
.tt-about-project__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.tt-about-project__media-ph { display: block; width: 100%; height: 100%; }

.tt-about-project__steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.tt-step-card {
    border: 1px solid var(--tt-border-warm);
    border-radius: var(--tt-radius-lg);
    padding: 26px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.tt-step-card__num {
    font-family: var(--tt-font-mono);
    font-size: 12px;
    color: var(--tt-brand);
}
.tt-step-card__title {
    font-family: var(--tt-font-head);
    font-size: 19px;
    font-weight: 600;
    color: var(--tt-heading);
}
.tt-step-card__text {
    font-family: var(--tt-font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--tt-text-2);
}

/* ---- Адаптив ---- */
@media (max-width: 991px) {
    .tt-about-project__grid { grid-template-columns: 1fr; gap: 32px; }
    .tt-about-project__steps { grid-template-columns: 1fr; }
    /* В стопке sticky не нужен */
    .tt-about-project__text { position: static; top: auto; }
}
@media (max-width: 575px) {
    .tt-about-project .tt-h2 { font-size: 22px; }
    .tt-about-project__media { height: 220px; }
}