.about-page {
    background: #f3f2ec;
    color: #292b31;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.about-shell { width: min(1180px, 100%); margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2.5rem); }
.about-footer a { color: var(--text-2); text-decoration: none; font-size: .83rem; font-weight: 600; }
.about-footer a:hover { color: var(--text); }
.about-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: .68rem .95rem; border: 1px solid var(--border); border-radius: 10px; color: var(--text); text-decoration: none; font-size: .84rem; font-weight: 600; }
.about-button:hover { border-color: var(--border-strong); background: var(--surface-2); }
.about-button--primary { border-color: var(--brand); background: var(--brand); color: #fff; }
.about-button--primary:hover { background: var(--brand-strong); color: #fff; }
.about-button:focus-visible, .about-footer a:focus-visible, .technical-details summary:focus-visible, .about-hero-nav a:focus-visible, .about-hero-search input:focus-visible, .about-hero-search button:focus-visible { outline: 2px solid #8f92ff; outline-offset: 3px; }

.about-hero { padding: clamp(.75rem, 2.6vw, 2rem); }
.about-hero-shell {
    position: relative;
    width: min(1380px, 100%);
    min-height: min(920px, calc(100dvh - clamp(1.5rem, 5.2vw, 4rem)));
    margin: 0 auto;
    overflow: hidden;
    border-radius: clamp(22px, 2.5vw, 34px);
    background: #11161e;
    box-shadow: 0 24px 72px rgba(18, 22, 29, .16), 0 2px 8px rgba(18, 22, 29, .08);
    isolation: isolate;
}
.about-hero-media { position: absolute; inset: 0; z-index: 1; margin: 0; }
.about-hero-media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 58% 34%;
}
.about-hero-curve {
    position: absolute;
    inset: 0;
    z-index: 2;
    width: 100%;
    height: 100%;
    pointer-events: none;
    filter: drop-shadow(8px 0 28px rgba(17, 22, 30, .2));
}
.about-hero-panel {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    gap: clamp(2rem, 5vh, 4.5rem);
    width: 47%;
    min-height: inherit;
    padding: clamp(1.5rem, 2.8vw, 2.8rem) clamp(1.6rem, 3.3vw, 3.5rem);
    color: #fff;
}
.about-hero-nav { display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2rem); }
.about-hero-brand { display: inline-flex; align-items: center; gap: .6rem; flex: 0 0 auto; color: #fff; text-decoration: none; }
.about-hero-brand img { width: 28px; height: 28px; object-fit: contain; }
.about-hero-brand span { font-size: 1.08rem; font-weight: 650; letter-spacing: -.02em; }
.about-hero-nav nav { display: flex; align-items: center; gap: clamp(.8rem, 1.7vw, 1.55rem); margin-left: auto; }
.about-hero-nav nav a { color: rgba(255,255,255,.66); text-decoration: none; font-size: .86rem; font-weight: 500; white-space: nowrap; transition: color .16s ease; }
.about-hero-nav nav a:hover { color: #fff; }
.about-hero-content { display: flex; flex-direction: column; gap: clamp(1rem, 2.2vh, 1.6rem); width: 100%; min-width: 0; max-width: 34rem; margin-top: 0; }
.about-hero-eyebrow { color: rgba(255,255,255,.52); font-size: .72rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.about-hero h1 { margin: 0; max-width: 10ch; color: #fff; font-size: clamp(3rem, 6vw, 5.7rem); line-height: .98; letter-spacing: -.055em; font-weight: 700; text-wrap: balance; }
.about-hero h1 span { display: block; }
.about-hero h1 .about-hero-accent { color: #9b9cff; white-space: nowrap; }
.about-hero-content > p { max-width: 28rem; margin: 0; color: rgba(255,255,255,.7); font-size: clamp(.98rem, 1.1vw, 1.125rem); line-height: 1.58; }
.about-hero-search {
    display: flex;
    align-items: center;
    gap: .65rem;
    width: 100%;
    max-width: 29rem;
    box-sizing: border-box;
    margin-top: .25rem;
    padding: .5rem .5rem .5rem 1rem;
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 15px;
    background: #fff;
    box-shadow: 0 12px 30px rgba(0,0,0,.12);
}
.about-hero-search > span { flex: 0 0 19px; width: 19px; height: 19px; color: #667085; }
.about-hero-search > span svg, .about-hero-search button svg { display: block; width: 100%; height: 100%; }
.about-hero-search input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; color: #292b31; font: inherit; font-size: .95rem; }
.about-hero-search input::placeholder { color: #7f8490; }
.about-hero-search button {
    display: grid;
    place-items: center;
    flex: 0 0 38px;
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 10px;
    background: #eef0ff;
    color: #5558dd;
    cursor: pointer;
}
.about-hero-search button svg { width: 18px; height: 18px; }
.about-hero-search button:hover { background: #e3e5ff; }
.about-hero-trust { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: .8rem; width: min(29rem, 100%); margin: clamp(1.2rem, 3.5vh, 2.5rem) 0 0; padding: 0; list-style: none; }
.about-hero-trust li { display: grid; grid-template-columns: 20px 1fr; gap: .6rem; align-items: start; min-width: 0; color: rgba(255,255,255,.68); font-size: .76rem; line-height: 1.45; }
.about-hero-trust svg { width: 20px; height: 20px; color: #d7d8ff; }
.about-hero-trust li + li { padding-left: .8rem; border-left: 1px solid rgba(255,255,255,.12); }

.section-number { color: var(--brand); font-size: .72rem; font-weight: 700; letter-spacing: .045em; }

.about-section { padding: clamp(4.25rem, 7vw, 6.5rem) 0; scroll-margin-top: 72px; }
.about-section--contrast { border-block: 1px solid var(--border); background: var(--surface); }
.section-intro { margin-bottom: 2.4rem; }
.section-intro h2 { margin: .85rem 0 1rem; max-width: 25ch; font-size: clamp(2rem, 3.7vw, 3.35rem); line-height: 1.1; letter-spacing: -.04em; font-weight: 600; text-wrap: balance; }
.section-intro p { max-width: 64ch; margin: 0; color: var(--text-2); line-height: 1.75; text-wrap: pretty; }

.architecture-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); column-gap: 2.5rem; row-gap: .75rem; }
.architecture-card { min-height: 225px; display: flex; flex-direction: column; padding: 1.45rem 0 1.65rem; border-top: 1px solid var(--border-strong); }
.architecture-card__tag { color: var(--brand); font-size: .74rem; letter-spacing: .02em; font-weight: 700; }
.architecture-card h3 { margin: .9rem 0 .6rem; font-size: 1.3rem; line-height: 1.35; }
.architecture-card p { margin: 0; color: var(--text-2); line-height: 1.67; }
.architecture-card ul { margin: .9rem 0 0; padding-left: 1.15rem; color: var(--text-3); font-size: .84rem; line-height: 1.7; }

.scope-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(2.25rem, 6vw, 5rem); align-items: start; }
.scope-columns { display: grid; gap: .9rem; }
.scope-column { padding: 1.35rem 1.4rem; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface-2); }
.scope-column--allowed > span { color: var(--success); }
.scope-column--blocked > span { color: var(--risk); }
.scope-column > span { font-weight: 700; }
.scope-column ul { margin: .8rem 0 0; padding-left: 1.15rem; color: var(--text-2); line-height: 1.75; }

.source-layout { display: grid; gap: 1rem; }
.source-flow { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--border-strong); border-bottom: 1px solid var(--border-strong); }
.source-flow li { display: grid; grid-template-columns: 46px 1fr; gap: .9rem; padding: 1.1rem 0; border-bottom: 1px solid var(--border); }
.source-flow li:last-child { border-bottom: 0; }
.source-flow li > span { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: var(--brand-soft); color: var(--brand); font-size: .72rem; font-weight: 700; }
.source-flow strong { display: block; }
.source-flow p { margin: .28rem 0 0; color: var(--text-2); line-height: 1.62; }
.source-callout { display: flex; justify-content: space-between; align-items: center; gap: 1.2rem; margin-top: 1.15rem; padding: 1.1rem 1.2rem; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-2); }
.source-callout p { margin: .25rem 0 0; color: var(--text-2); font-size: .86rem; line-height: 1.58; }

.technical-details { margin-top: 1.2rem; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.technical-details summary { padding: 1rem 0; color: var(--text-2); cursor: pointer; font-size: .86rem; font-weight: 650; }
.technical-details summary:hover { color: var(--text); }
.technical-details__body { padding: 0 0 1.15rem; max-width: 70ch; color: var(--text-2); font-size: .87rem; line-height: 1.7; }
.technical-details__body p { margin: 0 0 .65rem; }
.technical-details__body p:last-child { margin-bottom: 0; }

.about-footer { border-top: 1px solid var(--border); padding: 1.2rem 0 2rem; color: var(--text-3); }
.about-footer .about-shell { display: flex; justify-content: space-between; gap: 1rem; font-size: .78rem; }

@media (max-width: 1120px) {
    .about-hero-panel { width: 53%; }
    .about-hero-nav nav { display: none; }
}
@media (max-width: 900px) {
    .about-hero { padding: 0; }
    .about-hero-shell {
        width: 100%;
        min-height: auto;
        display: flex;
        flex-direction: column;
        border-radius: 0;
        box-shadow: none;
    }
    .about-hero-curve { display: none; }
    .about-hero-media {
        position: relative;
        inset: auto;
        order: 2;
        min-height: 340px;
        aspect-ratio: 4 / 3;
    }
    .about-hero-media img { object-position: 58% 38%; }
    .about-hero-panel {
        order: 1;
        width: 100%;
        min-height: auto;
        padding: 1.45rem 1.3rem 2.4rem;
        border-radius: 0 0 clamp(22px, 5vw, 34px) clamp(22px, 5vw, 34px);
    }
    .about-hero-content { max-width: 38rem; margin-top: 0; }
    .about-hero h1 { max-width: 8ch; font-size: clamp(3rem, 10vw, 5.4rem); }
    .scope-layout { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
    .about-hero-panel { padding: 1.25rem 1rem 2rem; gap: 2rem; }
    .about-hero-nav { justify-content: space-between; }
    .about-hero h1 { font-size: clamp(2.85rem, 15vw, 4.7rem); }
    .about-hero-trust { grid-template-columns: 1fr; gap: .6rem; }
    .about-hero-trust li + li { padding: .6rem 0 0; border-top: 1px solid rgba(255,255,255,.12); border-left: 0; }
    .about-hero-media { min-height: 300px; }
    .architecture-grid { grid-template-columns: 1fr; }
    .architecture-card { min-height: 0; }
    .source-callout { align-items: flex-start; flex-direction: column; }
    .about-footer .about-shell { flex-direction: column; }
}