/* Назначение файла: единые стили публичного раздела «Возможности» и его тематических страниц. */

.features-page {
    padding: 34px 0 88px;
    background:
        radial-gradient(circle at 82% 4%, rgba(var(--as-accent-rgb), 0.085), transparent 25%),
        linear-gradient(180deg, var(--as-surface) 0, var(--as-surface) 330px);
}

.features-subnav {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 46px;
    padding: 7px;
    border: 1px solid var(--public-line);
    border-radius: 14px;
    background: rgba(var(--as-surface-rgb), 0.9);
    box-shadow: 0 8px 26px rgba(var(--as-shadow-rgb), 0.045);
}

.features-subnav a {
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    padding: 0 13px;
    border-radius: 9px;
    color: var(--as-muted);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
}

.features-subnav a:hover,
.features-subnav a.is-active {
    color: var(--as-accent-text);
    background: var(--public-accent-soft);
}

.features-kicker {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    margin-bottom: 14px;
    border: 1px solid var(--as-border);
    border-radius: 999px;
    color: var(--as-accent-text);
    background: var(--public-accent-soft);
    font-size: 12px;
    font-weight: 850;
    letter-spacing: .03em;
    text-transform: uppercase;
}

.features-hero {
    max-width: 930px;
    padding: 20px 0 46px;
}

.features-hero h1,
.feature-detail-hero h1 {
    margin: 0;
    color: var(--public-text);
    font-size: clamp(40px, 5vw, 64px);
    line-height: 1.03;
    letter-spacing: -.055em;
}

.features-hero > p,
.feature-detail-hero > div:first-child > p {
    max-width: 760px;
    margin: 20px 0 0;
    color: var(--public-muted);
    font-size: 18px;
    line-height: 1.72;
}

.features-hero__actions,
.feature-detail-hero__actions,
.features-final__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    align-items: center;
    margin-top: 26px;
}

.features-main-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    scroll-margin-top: 96px;
}

.feature-entry {
    min-width: 0;
    padding: 30px;
    border: 1px solid var(--public-line);
    border-radius: 20px;
    background: var(--as-surface);
    box-shadow: 0 15px 42px rgba(var(--as-shadow-rgb), 0.052);
}

.feature-entry--chat {
    border-color: var(--as-border);
    background: linear-gradient(145deg, var(--as-surface) 0, var(--as-surface) 100%);
}

.feature-entry__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
}

.feature-entry__number {
    color: var(--as-muted);
    font-size: 12px;
    font-weight: 850;
    letter-spacing: .06em;
}

.feature-entry__icon {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    color: var(--as-accent-text);
    background: var(--public-accent-soft);
    font-size: 18px;
    font-weight: 900;
}

.feature-entry h2,
.feature-detail-grid h2,
.features-project-band h2,
.features-character-band h2,
.feature-highlight h2,
.feature-process h2,
.feature-notice h2,
.features-final h2 {
    margin: 0;
    color: var(--public-text);
    letter-spacing: -.035em;
}

.feature-entry h2 {
    font-size: 27px;
}

.feature-entry > p {
    margin: 12px 0 0;
    color: var(--as-muted);
    font-size: 15px;
    line-height: 1.72;
}

.feature-entry ul {
    margin: 20px 0 0;
    padding: 17px 0 0;
    border-top: 1px solid var(--as-border);
    list-style: none;
}

.feature-entry li {
    position: relative;
    padding-left: 19px;
    color: var(--as-muted);
    font-size: 13px;
    line-height: 1.6;
}

.feature-entry li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--as-accent-text);
    font-weight: 900;
}

.feature-entry li + li {
    margin-top: 6px;
}

.feature-entry__action {
    display: inline-flex;
    margin-top: 22px;
    color: var(--as-accent-text);
    font-size: 13px;
    font-weight: 850;
    text-decoration: none;
}

.feature-entry__action:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.features-project-band,
.features-character-band,
.feature-highlight,
.feature-process,
.feature-notice,
.features-final {
    margin-top: 24px;
    border: 1px solid var(--public-line);
    border-radius: 22px;
    background: var(--as-surface);
    box-shadow: 0 15px 42px rgba(var(--as-shadow-rgb), 0.05);
}

.features-project-band {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(360px, .9fr) auto;
    gap: 30px;
    align-items: center;
    margin-top: 56px;
    padding: 38px 40px;
    background: linear-gradient(135deg, var(--as-surface) 0, var(--as-surface) 100%);
}

.features-project-band h2,
.features-character-band h2,
.feature-highlight h2,
.feature-process h2,
.features-final h2 {
    font-size: clamp(26px, 3vw, 36px);
    line-height: 1.12;
}

.features-project-band p,
.features-character-band p,
.feature-highlight p,
.feature-notice p,
.features-final p {
    margin: 13px 0 0;
    color: var(--as-muted);
    font-size: 14px;
    line-height: 1.72;
}

.features-project-flow {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    justify-content: center;
}

.features-project-flow span {
    display: inline-flex;
    min-height: 34px;
    align-items: center;
    padding: 0 11px;
    border: 1px solid var(--as-border);
    border-radius: 999px;
    color: var(--as-muted);
    background: var(--as-surface);
    font-size: 12px;
    font-weight: 750;
}

.features-project-flow i {
    color: var(--as-muted);
    font-size: 11px;
    font-style: normal;
}

.features-character-band {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 34px;
    padding: 36px 40px;
}

.features-character-band__copy {
    max-width: 760px;
}

.features-character-band__actions,
.feature-highlight__actions {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 13px;
}

.features-final {
    margin-top: 48px;
    padding: 46px 40px;
    text-align: center;
    border-color: var(--as-border);
    background: linear-gradient(135deg, var(--as-surface) 0, var(--as-surface) 100%);
}

.features-final > span {
    display: block;
    margin-bottom: 10px;
    color: var(--as-accent-text);
    font-size: 12px;
    font-weight: 850;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.features-final p {
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.features-final > .public-button {
    margin-top: 24px;
}

.features-final__actions {
    justify-content: center;
}

/* Назначение блока: верхняя часть отдельной страницы конкретной возможности. */
.feature-detail-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr);
    gap: clamp(40px, 6vw, 82px);
    align-items: center;
    padding: 26px 0 56px;
}

.feature-detail-hero h1 {
    max-width: 820px;
    font-size: clamp(40px, 4.5vw, 60px);
}

.feature-demo-card {
    min-height: 310px;
    padding: 24px;
    border: 1px solid var(--as-border);
    border-radius: 22px;
    background: linear-gradient(145deg, var(--as-surface), var(--as-surface));
    box-shadow: 0 24px 60px rgba(var(--as-shadow-rgb), 0.11);
}

.feature-demo-card__head {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 17px;
    border-bottom: 1px solid var(--as-border);
}

.feature-demo-card__head span {
    color: var(--as-muted);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
}

.feature-demo-card__head strong {
    color: var(--as-text);
    font-size: 13px;
}

.feature-demo-steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    gap: 8px;
    align-items: center;
    margin-top: 72px;
}

.feature-demo-steps span {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border: 1px solid var(--as-border);
    border-radius: 11px;
    color: var(--as-muted);
    background: var(--as-surface);
    font-size: 11px;
    font-weight: 800;
    text-align: center;
}

.feature-demo-steps i {
    color: var(--as-muted);
    font-size: 10px;
    font-style: normal;
}

.feature-demo-lines {
    display: grid;
    gap: 9px;
    margin-top: 48px;
}

.feature-demo-lines span {
    height: 7px;
    border-radius: 99px;
    background: var(--as-surface-soft);
}

.feature-demo-lines span:nth-child(1) { width: 82%; }
.feature-demo-lines span:nth-child(2) { width: 64%; }
.feature-demo-lines span:nth-child(3) { width: 72%; }

.feature-detail-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.feature-detail-grid article {
    padding: 25px 23px;
    border: 1px solid var(--public-line);
    border-radius: 17px;
    background: var(--as-surface);
}

.feature-detail-grid__index {
    display: block;
    margin-bottom: 18px;
    color: var(--as-accent-text);
    font-size: 11px;
    font-weight: 900;
    letter-spacing: .06em;
}

.feature-detail-grid h2 {
    font-size: 18px;
    line-height: 1.25;
}

.feature-detail-grid p {
    margin: 9px 0 0;
    color: var(--as-muted);
    font-size: 13px;
    line-height: 1.68;
}

.feature-highlight {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    margin-top: 42px;
    padding: 36px 40px;
    border-color: var(--as-border);
    background: linear-gradient(135deg, var(--as-surface) 0, var(--as-surface) 100%);
}

.feature-highlight > div:first-child {
    max-width: 780px;
}

.feature-process {
    padding: 36px 40px 40px;
}

.feature-process header {
    max-width: 780px;
}

.feature-process__row {
    display: grid;
    grid-template-columns: repeat(7, auto);
    gap: 10px;
    align-items: stretch;
    margin-top: 28px;
}

.feature-process__row--wide {
    grid-template-columns: repeat(9, auto);
}

.feature-process__row > div {
    min-width: 0;
    flex: 1;
    padding: 18px;
    border: 1px solid var(--as-border);
    border-radius: 14px;
    background: var(--as-surface);
}

.feature-process__row > div > span {
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    border-radius: 9px;
    color: var(--as-accent-text);
    background: var(--public-accent-soft);
    font-size: 11px;
    font-weight: 900;
}

.feature-process__row strong {
    display: block;
    color: var(--as-text);
    font-size: 14px;
}

.feature-process__row p {
    margin: 6px 0 0;
    color: var(--as-muted);
    font-size: 12px;
    line-height: 1.55;
}

.feature-process__row > i {
    align-self: center;
    color: var(--as-muted);
    font-size: 12px;
    font-style: normal;
}

/* Назначение блока: декоративная HTML/CSS-схема временной линии без графических файлов. */
.feature-demo-card--timeline {
    min-height: 310px;
}

.feature-demo-timeline {
    display: grid;
    gap: 14px;
    margin-top: 68px;
}

.feature-demo-timeline > div {
    display: grid;
    grid-template-columns: 30px repeat(3, 1fr);
    gap: 7px;
    align-items: center;
}

.feature-demo-timeline > div > span {
    color: var(--as-muted);
    font-size: 10px;
    font-weight: 850;
}

.feature-demo-timeline i,
.feature-demo-timeline b,
.feature-demo-timeline em {
    display: block;
    min-height: 38px;
    border-radius: 8px;
    background: var(--as-surface);
    font-style: normal;
}

.feature-demo-timeline b {
    grid-column: 2 / 5;
    min-height: 26px;
    background: var(--as-surface);
}

.feature-demo-timeline em {
    grid-column: 2 / 5;
    min-height: 22px;
    background: repeating-linear-gradient(90deg, var(--as-surface-soft) 0 5px, var(--as-surface) 5px 10px);
}

/* Назначение блока: абстрактная HTML/CSS-визуализация сохранённого голосового профиля. */
.feature-wave {
    height: 114px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    margin-top: 45px;
}

.feature-wave i {
    width: 6px;
    border-radius: 99px;
    background: linear-gradient(180deg, var(--public-accent), var(--as-accent-soft));
}

.feature-wave i:nth-child(1), .feature-wave i:nth-child(12) { height: 22px; }
.feature-wave i:nth-child(2), .feature-wave i:nth-child(11) { height: 40px; }
.feature-wave i:nth-child(3), .feature-wave i:nth-child(10) { height: 64px; }
.feature-wave i:nth-child(4), .feature-wave i:nth-child(9) { height: 88px; }
.feature-wave i:nth-child(5), .feature-wave i:nth-child(8) { height: 58px; }
.feature-wave i:nth-child(6), .feature-wave i:nth-child(7) { height: 104px; }

.feature-demo-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    justify-content: center;
    margin-top: 26px;
}

.feature-demo-meta span {
    padding: 7px 10px;
    border: 1px solid var(--as-border);
    border-radius: 999px;
    color: var(--as-muted);
    background: var(--as-surface);
    font-size: 11px;
    font-weight: 750;
}

.feature-notice {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    padding: 28px 32px;
    background: var(--as-surface);
}

.feature-notice__icon {
    flex: 0 0 auto;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    color: var(--as-accent-text);
    background: var(--public-accent-soft);
    font-weight: 900;
}

.feature-notice h2 {
    font-size: 20px;
}

.feature-notice p {
    margin-top: 7px;
}

@media (max-width: 1100px) {
    .features-project-band {
        grid-template-columns: 1fr;
    }

    .features-project-flow {
        justify-content: flex-start;
    }

    .features-project-band > .public-button {
        justify-self: start;
    }

    .feature-detail-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .feature-process__row,
    .feature-process__row--wide {
        grid-template-columns: 1fr;
    }

    .feature-process__row > i {
        justify-self: center;
        transform: rotate(90deg);
    }
}

@media (max-width: 900px) {
    .feature-detail-hero {
        grid-template-columns: 1fr;
    }

    .feature-demo-card {
        max-width: 620px;
    }

    .features-character-band,
    .feature-highlight {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 700px) {
    .features-page {
        padding: 22px 0 60px;
    }

    .features-subnav {
        margin-bottom: 30px;
    }

    .features-hero {
        padding-top: 10px;
    }

    .features-hero h1,
    .feature-detail-hero h1 {
        font-size: 38px;
    }

    .features-hero > p,
    .feature-detail-hero > div:first-child > p {
        font-size: 16px;
    }

    .features-main-grid,
    .feature-detail-grid {
        grid-template-columns: 1fr;
    }

    .feature-entry,
    .features-project-band,
    .features-character-band,
    .feature-highlight,
    .feature-process,
    .features-final {
        padding: 26px 21px;
        border-radius: 17px;
    }

    .feature-demo-card {
        min-height: 270px;
        padding: 20px;
    }

    .feature-demo-steps {
        grid-template-columns: 1fr;
        margin-top: 28px;
    }

    .feature-demo-steps i {
        justify-self: center;
        transform: rotate(90deg);
    }

    .feature-demo-lines {
        display: none;
    }

    .features-character-band__actions,
    .feature-highlight__actions {
        width: 100%;
    }
}


/* Назначение блока: демонстрационная схема универсального AI-чата на публичной странице возможности. */
.feature-demo-card--chat {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.feature-chat-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.feature-chat-tabs span,
.feature-chat-capabilities span {
    display: inline-flex;
    min-height: 34px;
    align-items: center;
    padding: 0 11px;
    border: 1px solid var(--as-border);
    border-radius: 999px;
    color: var(--as-muted);
    background: var(--as-surface);
    font-size: 11px;
    font-weight: 800;
}

.feature-chat-tabs span.is-active {
    border-color: var(--as-border);
    color: var(--as-accent-text);
    background: var(--public-accent-soft);
}

.feature-chat-message {
    flex: 1 1 auto;
    min-height: 128px;
    padding: 20px;
    border: 1px solid var(--as-border);
    border-radius: 16px;
    background: var(--as-surface);
    box-shadow: inset 0 1px 0 rgba(var(--as-shadow-rgb), 0.18);
}

.feature-chat-message > span {
    display: block;
    color: var(--as-muted);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.feature-chat-message p {
    margin: 15px 0 0;
    color: var(--as-muted);
    font-size: 14px;
    line-height: 1.65;
}

.feature-chat-capabilities {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.feature-highlight--chat {
    background: linear-gradient(135deg, var(--as-surface) 0, var(--as-surface) 100%);
}

/* Назначение блока: группа действий в информационной полосе Project Workspace на странице возможностей. */
.features-project-band__actions {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}