.catalog-kicker { margin-bottom: 8px; font-size: 13px; }
.catalog-intro-featured { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .9fr); align-items: center; gap: clamp(19px, 4vw, 50px); }
.catalog-feature { display: block; padding: 9px; border-color: #29446c; color: #f7faff; background: #152846; box-shadow: 0 16px 38px #17284924; }
.catalog-feature:hover { border-color: #4c78c6; }
.catalog-feature .project-media { aspect-ratio: 1.78; border-color: #698dca61; background: radial-gradient(ellipse at 85% 5%, #3b5e9c, transparent 74%), #1c345b; }
.catalog-feature-caption { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 9px 4px; }
.catalog-feature-caption .category { color: #b7cffb; }
.catalog-feature-caption strong { display: block; font-size: clamp(17px, 2.4vw, 24px); }
.catalog-switch {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    width: fit-content;
    margin-block: 16px 21px;
    padding: 6px;
    border: 1px solid var(--line);
    border-radius: 15px;
    background: #091221;
    box-shadow: inset 0 2px 9px #0004;
}
.catalog-switch .button { min-height: 39px; }
.catalog-search { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 4px 18px; align-items: center; padding: clamp(15px, 2.5vw, 24px); background: linear-gradient(130deg, #1a2c46, #101c30); }
.catalog-search input { grid-column: 2; grid-row: 1 / span 2; }
.catalog-search .catalog-count { grid-column: 1; }
.catalog-search label, .request-form label { font-weight: 650; }
.catalog-search input, .request-form input, .request-form select, .request-form textarea {
    width: 100%;
    min-width: 0;
    min-height: 46px;
    padding: 10px 13px;
    border: 1px solid #7b9dc15c;
    border-radius: 9px;
    background: #091321;
    box-shadow: inset 0 3px 8px #0004;
    color: var(--ink);
    font: inherit;
    transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.catalog-search input:hover, .request-form input:hover, .request-form select:hover, .request-form textarea:hover {
    border-color: #85afe5a6;
}
.catalog-search input:focus, .request-form input:focus, .request-form select:focus, .request-form textarea:focus {
    border-color: #8bc6ff;
    background: #101f35;
    box-shadow: 0 0 0 4px #65a7ff20, inset 0 2px 7px #0003;
}
.catalog-search input::placeholder, .request-form input::placeholder, .request-form textarea::placeholder { color: #91a4c0; }
.catalog-count, .form-note { color: var(--muted); font-size: 14px; }
.catalog-group, .catalog-examples { margin-top: 32px; }
.catalog-examples-heading { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 9px 18px; margin-bottom: 13px; }
.catalog-examples-heading .case-link { margin-top: 0; }
.catalog-group h2, .catalog-examples h2, .catalog-custom h2, .request-side h2, .request-confirmation h2 {
    font-size: clamp(21px, 3vw, 30px);
    letter-spacing: -.035em;
}
.catalog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr)); gap: 13px; margin-top: 13px; }
.catalog-item {
    display: grid;
    align-content: start;
    gap: 9px;
    padding: clamp(15px, 2.3vw, 21px);
    border-radius: var(--radius-card);
    background: var(--panel);
    border-radius: 17px 5px 17px 5px;
    transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.catalog-item:hover { border-color: #89b8f98c; transform: translateY(-3px); box-shadow: 0 20px 30px #0005, inset 0 1px #a0c7ff44; }
.catalog-item-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.catalog-item-top strong { font-size: 20px; line-height: 1.2; }
.catalog-item-top .arrow-link { width: 37px; height: 37px; }
.catalog-item-description { color: var(--muted); font-size: 15px; }
.catalog-custom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 30px;
    padding: clamp(18px, 4vw, 32px);
    background: radial-gradient(ellipse at 100% 0, #3263a955, transparent 75%), #13233c;
}
.catalog-custom p { margin-top: 7px; color: var(--muted); }
.topic-features { margin: 10px 0 0; padding-inline-start: 1.15em; color: var(--muted); }
.topic-features li + li { margin-top: 5px; }
.catalog-case { margin-bottom: 12px; }
.catalog-case .case-card-grid { margin-top: 10px; }
.request-layout { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); align-items: start; gap: 16px; margin-top: 19px; }
.request-form, .request-side { padding: clamp(16px, 4vw, 30px); }
.request-side { background: radial-gradient(ellipse at 100% 0, #3263a955, transparent 75%), #13233c; }
.request-form { display: grid; gap: 10px; }
.request-form label:not(:first-child) { margin-top: 6px; }
.request-form textarea { resize: vertical; }
.request-form .button { justify-self: start; }
.request-side ol { padding-inline-start: 1.15em; color: var(--muted); }
.request-side li + li { margin-top: 9px; }
.request-confirmation { border: 1px solid #619b8e; border-radius: 13px; padding: 15px; background: #132f31; }
.request-confirmation p { margin: 8px 0 13px; color: var(--muted); }
.request-error { color: #ffaaa3; }
.catalog-guides { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.catalog-guides .case-link { margin-top: 0; }
.model-profile {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 15px;
    margin-block: 22px;
}
.model-profile > * { padding: clamp(16px, 3vw, 24px); }
.model-profile h2, .model-questions h2 {
    font-size: clamp(19px, 2.5vw, 27px);
    line-height: 1.2;
    letter-spacing: -.025em;
}
.model-example { background: radial-gradient(ellipse at 100% 0, #3263a955, transparent 78%), var(--panel); }
.model-example p, .model-questions p, .model-terms { margin-top: 9px; color: var(--muted); }
.model-questions > section { padding-block: 16px; border-top: 1px solid var(--line); }
.model-related { display: flex; flex-wrap: wrap; gap: 10px; margin-block: 12px 18px; }
.model-related .case-link { margin-top: 0; }
.mobile-development { margin-block: clamp(28px, 4vw, 45px); }
.mobile-development h2, .catalog-types-title {
    font-size: clamp(24px, 3.3vw, 36px);
    line-height: 1.16;
    letter-spacing: -.04em;
}
.mobile-platforms, .mobile-scope {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 245px), 1fr));
    gap: 14px;
    margin-top: 14px;
}
.mobile-platform {
    padding: clamp(17px, 3vw, 25px);
    background: radial-gradient(ellipse at 100% 0, #264f8b66, transparent 75%), var(--panel);
}
.mobile-platform h3 { font-size: clamp(21px, 3vw, 29px); color: var(--accent); }
.mobile-platform p, .mobile-scope p { margin-top: 7px; color: var(--muted); }
.mobile-scope section { padding-block: 12px; border-top: 1px solid var(--line); }
.mobile-scope h3 { font-size: 19px; }
.catalog-types-title { margin-bottom: 14px; }
@media (max-width: 700px) {
    .request-layout, .model-profile { grid-template-columns: 1fr; }
    .catalog-intro-featured { grid-template-columns: 1fr; }
    .catalog-search { grid-template-columns: minmax(0, 1fr); gap: 6px; }
    .catalog-search input { grid-column: auto; grid-row: auto; }
}
@media (prefers-reduced-motion: reduce) { .catalog-item:hover { transform: none; } }