/* Hero: strong single editorial composition. Content commands more of the canvas;
   remaining negative space is closed off by one restrained structural rule, not an illustration. */
.hero{
    position: relative;
    padding: 86px 0 84px;
    overflow: hidden;
}
.hero .container{
    position: relative;
}
.hero__content{
    max-width: 860px;
}
.hero h1{
    margin-bottom: 26px;
    font-size: clamp(3rem,5.3vw,5rem);
    letter-spacing: -.065em;
}
.hero h1 span{
    color: var(--color-primary);
}
.hero__description{
    max-width: var(--measure);
    margin-bottom: 34px;
    color: var(--color-muted);
    font-size: 1.08rem;
    word-break: keep-all;
}
/* The one allowed structural mark: a fading vertical rule closing the right-hand field.
   No illustration, no icon, no invented label — pure composition. */
.hero .container::after{
    content: "";
    position: absolute;
    top: 6px;
    bottom: 6px;
    right: 0;
    width: 1px;
    background: linear-gradient(to bottom,transparent,var(--color-border) 18%,var(--color-border) 82%,transparent);
}
@media(max-width:900px){
    .hero .container::after{
        display: none;
    }
}
/* What Brixel is: prose-led, asymmetric on desktop, capped reading width. */
.about{
    padding: 96px 0;
    background: var(--color-surface);
}
.about__layout{
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: 10%;
}
.about__layout h2{
    margin: 0;
    font-size: clamp(2.2rem,3.8vw,3.35rem);
}
.about__layout p{
    max-width: var(--measure);
    margin: 0;
    color: var(--color-muted);
    font-size: 1.05rem;
    line-height: 1.8;
    word-break: keep-all;
}
/* Architecture: the one signature technical visual on the site. Four layers, most
   breathing room of any section, denser internal structure than any other block. */
.architecture{
    padding: 150px 0;
    color: var(--color-dark-text-muted);
    background: var(--color-dark);
}
.architecture__heading{
    max-width: 640px;
}
.architecture__heading h2{
    margin: 0;
    color: #fff;
    font-size: clamp(2.2rem,3.8vw,3.35rem);
}
.architecture__heading p{
    max-width: var(--measure);
    margin: 20px 0 0;
    color: var(--color-dark-text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
    word-break: keep-all;
}
/* The diagram is framed as one schematic: an outer hairline boundary and a faint
   technical grid stand in for the "fake dashboard" the site does not need. */
.architecture__diagram{
    max-width: 860px;
    margin: 64px auto 0;
    border: 1px solid var(--color-dark-surface-border);
    border-radius: var(--radius-sm);
    background-image:
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
    background-size: 100% 28px,64px 100%;
    background-position: 0 0;
}
.architecture__row{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 20px 28px;
    text-align: center;
}
.architecture__row-label{
    color: #fff;
    font-size: 1.02rem;
    font-weight: 700;
}
/* Field layer: a single dashed cell — the one group whose systems sit outside Brixel. */
.architecture__row--field{
    padding: 16px 28px;
}
.architecture__row--field .architecture__row-label{
    padding: 10px 22px;
    border: 1px dashed var(--color-dark-surface-border);
    border-radius: var(--radius-sm);
    color: var(--color-dark-text-muted);
    font-size: .92rem;
    font-weight: 650;
}
/* Business systems: internal, owned systems — a flush grid of solid-bordered cells,
   read like a rack of modules rather than a divided text list. */
.architecture__row--systems{
    display: grid;
    grid-template-columns: repeat(5,1fr);
    gap: 0;
    padding: 0;
    border-top: 1px solid var(--color-dark-surface-border);
    border-bottom: 1px solid var(--color-dark-surface-border);
}
.architecture__row--systems span{
    padding: 18px 6px;
    border-left: 1px solid var(--color-dark-surface-border);
    color: #dbe3f5;
    font-size: .88rem;
    font-weight: 700;
    letter-spacing: .02em;
}
.architecture__row--systems span:first-child{
    border-left: 0;
}
/* Integration layer: the architectural spine. Strongest fill, boldest label, the
   band every connection visibly passes through. */
.architecture__row--platform{
    padding: 30px 28px;
    background: rgba(47,111,187,.16);
}
.architecture__row--platform .architecture__row-label{
    color: #fff;
    font-size: 1.12rem;
    letter-spacing: -.01em;
}
/* Connected systems: external/plug-in systems — dashed cells to echo the field layer
   and read visibly different from the solid, owned business-systems group above. */
.architecture__row--enterprise{
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 0;
    padding: 0;
    border-top: 1px solid var(--color-dark-surface-border);
}
.architecture__row--enterprise span{
    padding: 18px 6px;
    border-left: 1px dashed var(--color-dark-surface-border);
    color: #dbe3f5;
    font-size: .88rem;
    font-weight: 700;
    letter-spacing: .02em;
}
.architecture__row--enterprise span:first-child{
    border-left: 0;
}
/* Connectors: visible structural links between layers, with a small directional
   mark instead of a bare hairline. */
.architecture__connector{
    position: relative;
    display: flex;
    justify-content: center;
    height: 32px;
}
.architecture__connector svg{
    overflow: visible;
    width: 1px;
    height: 100%;
}
.architecture__connector line{
    stroke: var(--color-dark-surface-border);
    stroke-width: 1;
    vector-effect: non-scaling-stroke;
}
.architecture__connector::after{
    content: "";
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 7px;
    height: 7px;
    border-right: 1px solid var(--color-dark-surface-border);
    border-bottom: 1px solid var(--color-dark-surface-border);
    transform: translateX(-50%) rotate(45deg);
}
/* Solutions teaser: compact editorial directory, not a catalogue. Name-led rows,
   metadata kept quiet, full row is the destination link. */
.solutions{
    padding: 96px 0;
    background: #fff;
}
.solutions-teaser{
    margin-top: 8px;
    border-top: 1px solid var(--color-border);
}
.solutions-teaser__row{
    display: grid;
    grid-template-columns: 2.5rem auto 1fr auto;
    align-items: center;
    gap: 20px;
    padding: 18px 4px;
    border-bottom: 1px solid var(--color-border);
    transition: padding-left var(--transition-fast) var(--transition-ease);
}
.solutions-teaser__row:hover,
.solutions-teaser__row:focus-visible{
    padding-left: 10px;
}
.solutions-teaser__index{
    color: var(--color-muted);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .04em;
}
.solutions-teaser__code{
    color: var(--color-ink);
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -.01em;
}
.solutions-teaser__category{
    color: var(--color-muted);
    font-size: .92rem;
}
.solutions-teaser__arrow{
    color: var(--color-primary);
    font-size: 1rem;
    transition: transform var(--transition-fast) var(--transition-ease);
}
.solutions-teaser__row:hover .solutions-teaser__arrow,
.solutions-teaser__row:focus-visible .solutions-teaser__arrow{
    transform: translateX(3px);
}
/* Approach: short intro + bold-lead statements. No numbering, no cards, no icon grid. */
.approach{
    padding: 120px 0;
    background: var(--color-surface);
}
.approach__layout{
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: 10%;
}
.approach__intro{
    position: sticky;
    top: 130px;
    align-self: start;
}
.approach__intro h2{
    margin: 0;
    font-size: clamp(2.2rem,3.8vw,3.35rem);
}
.approach__points{
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.approach__points p{
    max-width: var(--measure);
    margin: 0;
    color: var(--color-muted);
    font-size: .98rem;
    line-height: 1.8;
    word-break: keep-all;
}
.approach__points strong{
    color: var(--color-ink);
}
/* Closing contact: open composition, not a repeat of Solutions' bordered panel.
   A top hairline stands in for the enclosing border. */
.closing{
    padding: 88px 0 104px;
    background: #fff;
    border-top: 1px solid var(--color-border);
}
.closing__layout{
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    align-items: center;
    gap: 8%;
}
.closing__layout h2{
    margin: 0;
    font-size: clamp(1.9rem,3vw,2.6rem);
}
.closing__layout p{
    margin: 0 0 26px;
    color: var(--color-muted);
    font-size: 1.02rem;
    word-break: keep-all;
}
@media(max-width:900px){
    .about__layout,
    .approach__layout{
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .approach__intro{
        position: static;
    }
    .closing__layout{
        grid-template-columns: 1fr;
        gap: 28px;
    }
}
@media(max-width:768px){
    .architecture__row--systems{
        grid-template-columns: repeat(3,1fr);
    }
    .architecture__row--systems span:nth-child(3n+1){
        border-left: 0;
    }
    .architecture__row--systems span:nth-child(n+4){
        border-top: 1px solid var(--color-dark-surface-border);
    }
}
@media(max-width:720px){
    .solutions-teaser__row{
        grid-template-columns: 2rem auto 1fr auto;
        gap: 12px;
        padding: 16px 4px;
    }
}
@media(max-width:560px){
    .hero{
        padding: 68px 0 60px;
    }
    .hero h1{
        font-size: 2.7rem;
    }
    .architecture{
        padding: 100px 0;
    }
    .architecture__diagram{
        margin-top: 40px;
    }
    .architecture__row{
        padding: 16px 16px;
    }
    .architecture__row--systems,
    .architecture__row--enterprise{
        grid-template-columns: 1fr 1fr;
    }
    .architecture__row--systems span:nth-child(2n+1),
    .architecture__row--enterprise span:nth-child(2n+1){
        border-left: 0;
    }
    .architecture__row--systems span:nth-child(n+3),
    .architecture__row--enterprise span:nth-child(n+3){
        border-top: 1px solid var(--color-dark-surface-border);
    }
    .closing{
        padding: 64px 0 76px;
    }
}