/* Solutions presentation system: engineering dossier layout.
   Content, keywords and URLs remain server-rendered; this file only changes presentation. */

.sx-page { overflow: clip; }
.sx-page .breadcrumb,
.sol-page .breadcrumb,
.solution-page .breadcrumb,
.solution-category .breadcrumb { margin: 0; padding-top: 22px; }

.sx-kicker,
.sol-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font: 500 11px/1.3 var(--font-mono);
  letter-spacing: .17em;
  text-transform: uppercase;
  color: var(--accent);
}
.sx-kicker::before,
.sol-kicker::before { content: ""; width: 28px; height: 1px; background: currentColor; }

/* Hub hero */
.sx-hero {
  position: relative;
  padding: 18px 0 0;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(var(--line-soft) 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(135deg, var(--bg-1), var(--bg) 58%);
}
.sx-hero::before {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: min(38vw, 560px); height: 8px;
  background: var(--accent);
}
.sx-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr);
  gap: clamp(42px, 6vw, 92px);
  align-items: center;
  min-height: min(700px, calc(100vh - 110px));
  padding: clamp(54px, 8vw, 112px) 0 clamp(44px, 6vw, 82px);
}
.sx-hero-copy { position: relative; z-index: 2; }
.sx-hero-copy h1 {
  max-width: 11ch;
  margin: 22px 0 24px;
  font-size: clamp(3rem, 6.5vw, 6.2rem);
  line-height: .94;
  letter-spacing: -.055em;
}
.sx-hero-lead { max-width: 60ch; color: var(--text-2); font-size: clamp(1rem, 1.35vw, 1.16rem); line-height: 1.78; }
.sx-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.sx-hero-visual {
  position: relative;
  margin: 0;
  aspect-ratio: 1.08;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2px 68px 2px 2px;
  background: var(--bg-2);
  box-shadow: var(--sh-2);
}
.sx-hero-visual::before {
  content: ""; position: absolute; inset: 22px; z-index: 1;
  border: 1px solid rgba(255,255,255,.32); border-radius: 1px 46px 1px 1px;
  pointer-events: none;
}
.sx-hero-visual img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.83) contrast(1.04); }
.sx-hero-visual figcaption {
  position: absolute; z-index: 2; left: 22px; right: 22px; bottom: 22px;
  display: flex; justify-content: space-between; gap: 20px;
  padding: 14px 17px;
  color: #fff; background: rgba(5,13,18,.76);
  border: 1px solid rgba(255,255,255,.22); backdrop-filter: blur(12px);
  font: 500 11px/1.4 var(--font-mono); letter-spacing: .12em; text-transform: uppercase;
}
.sx-visual-index { color: var(--accent-2); }
.sx-stats { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-bottom: 0; }
.sx-stat { position: relative; min-height: 132px; padding: 24px; border-right: 1px solid var(--line); background: color-mix(in srgb, var(--bg-1) 88%, transparent); }
.sx-stat:last-child { border-right: 0; }
.sx-stat-index { position: absolute; top: 14px; right: 16px; font: 11px var(--font-mono); color: var(--text-3); }
.sx-stat b { display: block; margin-bottom: 8px; color: var(--text); font: 600 clamp(1.55rem, 2.4vw, 2.2rem)/1 var(--font-display); }
.sx-stat > span:last-child { display: block; max-width: 18ch; color: var(--text-2); font-size: .9rem; line-height: 1.45; }

/* In-page index */
.sx-nav {
  position: sticky; top: 74px; z-index: 35;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  min-height: 64px; margin: 20px 0 0; padding: 10px 16px 10px 20px;
  border: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 88%, transparent);
  box-shadow: 0 12px 30px rgba(0,0,0,.08); backdrop-filter: blur(16px);
}
.sx-nav-label { font: 500 10px var(--font-mono); letter-spacing: .14em; color: var(--text-3); text-transform: uppercase; white-space: nowrap; }
.sx-nav > div { display: flex; overflow-x: auto; scrollbar-width: none; }
.sx-nav a { position: relative; padding: 10px 14px; color: var(--text-2); font-size: .86rem; white-space: nowrap; }
.sx-nav a::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px; background: var(--accent); transform: scaleX(0); transition: transform .25s var(--ease); }
.sx-nav a:hover, .sx-nav a.active { color: var(--text); }
.sx-nav a.active::after { transform: scaleX(1); }

/* Section system */
.sx-section { padding: clamp(76px, 9vw, 126px) 0; border-bottom: 1px solid var(--line); scroll-margin-top: 140px; }
.sx-section-head { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, .7fr); gap: clamp(28px, 7vw, 110px); align-items: end; margin-bottom: clamp(38px, 5vw, 64px); }
.sx-section-head h2 { max-width: 18ch; margin-top: 15px; font-size: clamp(2rem, 4vw, 3.8rem); line-height: 1.02; }
.sx-section-head > p { color: var(--text-2); line-height: 1.8; }
.sx-section-head--stack { display: block; }
.sx-section-head--stack h2 { font-size: clamp(1.9rem, 3vw, 3rem); }
.sx-section-head--stack > p { max-width: 64ch; margin-top: 20px; }

/* Scenario browser */
.sx-browser { display: grid; grid-template-columns: 330px minmax(0, 1fr); gap: clamp(28px, 4vw, 58px); align-items: start; }
.sx-seg { position: sticky; top: 158px; border-top: 1px solid var(--line); }
.sx-seg-item {
  width: 100%; display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; gap: 13px; align-items: start;
  padding: 20px 4px; color: var(--text-2); text-align: left; border: 0; border-bottom: 1px solid var(--line); background: transparent;
  transition: color .2s var(--ease), padding .2s var(--ease), background .2s var(--ease);
}
.sx-seg-item:hover { color: var(--text); padding-left: 8px; }
.sx-seg-item[aria-pressed="true"] { color: var(--text); padding-left: 14px; background: var(--accent-soft); box-shadow: inset 3px 0 var(--accent); }
.sx-seg-index { padding-top: 3px; color: var(--text-3); font: 11px var(--font-mono); }
.sx-seg-body { display: block; min-width: 0; }
.sx-seg-name { display: block; font: 600 .96rem/1.35 var(--font-display); }
.sx-seg-desc { display: -webkit-box; overflow: hidden; margin-top: 5px; color: var(--text-3); font-size: .78rem; line-height: 1.45; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.sx-seg-n { min-width: 30px; padding: 3px 8px; color: var(--accent); border: 1px solid var(--accent-line); border-radius: var(--r-pill); font: 500 11px var(--font-mono); text-align: center; }
.sx-pane[hidden] { display: none; }
.sx-pane.active { animation: sx-pane-in .35s var(--ease) both; }
@keyframes sx-pane-in { from { opacity: 0; transform: translateY(8px); } }
.sx-cards { border-top: 1px solid var(--line); }
.sx-card {
  display: grid; grid-template-columns: 42px 188px minmax(0, 1fr) 34px; gap: 20px; align-items: center;
  padding: 20px 8px; border-bottom: 1px solid var(--line); transition: background .25s var(--ease), transform .25s var(--ease);
}
.sx-card:hover { background: var(--bg-1); transform: translateX(5px); }
.sx-card-no { color: var(--text-3); font: 11px var(--font-mono); }
.sx-card-media { aspect-ratio: 16/10; overflow: hidden; background: var(--bg-2); }
.sx-card-media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.78); transition: transform .45s var(--ease), filter .45s var(--ease); }
.sx-card:hover .sx-card-media img { transform: scale(1.04); filter: saturate(1); }
.sx-card-body { min-width: 0; }
.sx-card-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; color: var(--text-3); font: 500 10px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.sx-card-meta i { width: 3px; height: 3px; border-radius: 50%; background: currentColor; }
.sx-card-title { display: block; color: var(--text); font: 600 clamp(1rem, 1.5vw, 1.22rem)/1.35 var(--font-display); }
.sx-card-desc { display: -webkit-box; overflow: hidden; margin-top: 8px; color: var(--text-2); font-size: .9rem; line-height: 1.58; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.sx-card-go { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid var(--line); color: var(--text-2); transition: color .2s, border-color .2s; }
.sx-card:hover .sx-card-go { color: var(--accent); border-color: var(--accent-line); }
.sx-view-all { display: flex; justify-content: space-between; gap: 20px; margin-top: 20px; padding: 16px 20px; color: var(--accent); border: 1px solid var(--accent-line); font-weight: 600; }

/* Field log */
.sx-field-log { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.sx-field-shot { grid-column: span 4; position: relative; min-height: 270px; margin: 0; overflow: hidden; background: var(--bg-2); }
.sx-field-shot--lead { grid-column: span 8; grid-row: span 2; min-height: 554px; }
.sx-field-shot img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.78) brightness(.82); transition: transform .6s var(--ease), filter .6s var(--ease); }
.sx-field-shot:hover img { transform: scale(1.035); filter: saturate(1) brightness(.72); }
.sx-field-shot figcaption { position: absolute; inset: auto 0 0; display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 18px; color: #fff; background: linear-gradient(transparent, rgba(4,9,13,.88)); }
.sx-field-shot figcaption span { font: 11px var(--font-mono); color: var(--accent-2); }
.sx-field-shot figcaption p { font-size: .84rem; line-height: 1.5; }

/* Case ledger */
.sx-project-list { border-top: 1px solid var(--line); }
.sx-project { display: grid; grid-template-columns: 52px minmax(0, 1.5fr) minmax(130px, .45fr) 30px; gap: 24px; align-items: center; padding: 28px 10px; border-bottom: 1px solid var(--line); }
.sx-project:hover { background: var(--bg-1); }
.sx-project-index { color: var(--text-3); font: 11px var(--font-mono); }
.sx-project-main b { display: block; font: 600 1.08rem/1.4 var(--font-display); }
.sx-project-main > span { display: -webkit-box; overflow: hidden; margin-top: 7px; color: var(--text-2); font-size: .88rem; -webkit-line-clamp: 1; -webkit-box-orient: vertical; }
.sx-project-data { display: flex; flex-direction: column; color: var(--text-3); font-size: .8rem; }
.sx-project-data em { color: var(--accent); font: normal 600 .9rem var(--font-mono); }
.sx-project-arrow { font-size: 1.35rem; color: var(--text-3); transition: transform .2s, color .2s; }
.sx-project:hover .sx-project-arrow { color: var(--accent); transform: translateX(4px); }

/* Engineering split */
.sx-engineering { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 7vw, 100px); border-bottom: 1px solid var(--line); }
.sx-engineering .sx-section { border-bottom: 0; }
.sx-cap { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.sx-cap article { position: relative; min-height: 250px; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-1); }
.sx-cap article > span { color: var(--accent); font: 11px var(--font-mono); }
.sx-cap h3 { margin-top: 46px; font-size: 1.08rem; }
.sx-cap p { margin-top: 12px; color: var(--text-2); font-size: .88rem; line-height: 1.65; }
.sx-steps { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.sx-steps li { display: grid; grid-template-columns: 48px 1fr; gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.sx-steps li > span { display: grid; place-items: center; width: 38px; height: 38px; color: var(--accent); border: 1px solid var(--accent-line); font: 500 11px var(--font-mono); }
.sx-steps b { font: 600 1rem var(--font-display); }
.sx-steps p { margin-top: 8px; color: var(--text-2); font-size: .88rem; line-height: 1.65; }

.sx-cta { position: relative; display: grid; grid-template-columns: 170px minmax(0, 1fr) auto; gap: clamp(28px, 5vw, 72px); align-items: center; margin: clamp(70px, 9vw, 120px) 0 0; padding: clamp(34px, 5vw, 66px); overflow: hidden; color: var(--on-accent); background: var(--accent); }
.sx-cta::after { content: ""; position: absolute; width: 360px; height: 360px; right: -90px; top: -220px; border: 1px solid currentColor; border-radius: 50%; opacity: .18; }
.sx-cta-code { align-self: start; font: 600 10px var(--font-mono); letter-spacing: .13em; }
.sx-cta h2 { max-width: 18ch; font-size: clamp(1.7rem, 3.2vw, 3rem); }
.sx-cta p { max-width: 62ch; margin-top: 14px; line-height: 1.65; opacity: .82; }
.sx-cta .btn-primary { position: relative; z-index: 1; color: var(--text); background: var(--bg); border-color: var(--bg); }
.sx-index { padding-top: 34px; }
.sx-all { border-top: 1px solid var(--line); }
.sx-all summary { display: flex; align-items: center; justify-content: space-between; padding: 24px 4px; cursor: pointer; font: 600 1rem var(--font-display); list-style: none; }
.sx-all summary::-webkit-details-marker { display: none; }
.sx-all summary b { display: grid; place-items: center; min-width: 38px; height: 28px; color: var(--accent); border: 1px solid var(--accent-line); font: 500 11px var(--font-mono); }
.sx-all-body { border-top: 1px solid var(--line); }
.sx-all-item { display: grid; grid-template-columns: 42px 1fr 24px; gap: 16px; padding: 16px 4px; border-bottom: 1px solid var(--line-soft); }
.sx-all-item > span { color: var(--text-3); font: 11px var(--font-mono); }
.sx-all-item b { font-size: .92rem; font-weight: 500; }
.sx-all-item em { color: var(--accent); font-style: normal; }

/* Solution article detail */
.sol-mast { position: relative; padding-bottom: clamp(50px, 8vw, 100px); border-bottom: 1px solid var(--line); background: linear-gradient(135deg, var(--bg-1), var(--bg)); }
.sol-mast::after { content: ""; position: absolute; inset: 0 0 auto auto; width: 32vw; height: 5px; background: var(--accent); }
.sol-mast-grid { display: grid; grid-template-columns: minmax(0, .92fr) minmax(400px, 1.08fr); gap: clamp(42px, 7vw, 104px); align-items: center; padding-top: clamp(48px, 7vw, 92px); }
.sol-mast-copy h1 { margin: 18px 0 22px; font-size: clamp(2.35rem, 5vw, 5.1rem); line-height: 1.01; letter-spacing: -.045em; }
.sol-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-bottom: 22px; color: var(--text-3); font: 500 11px var(--font-mono); letter-spacing: .05em; }
.sol-deck { max-width: 62ch; color: var(--text-2); font-size: 1.04rem; line-height: 1.75; }
.sol-cover { position: relative; margin: 0; aspect-ratio: 4/3; overflow: hidden; border-radius: 50px 2px 2px 2px; background: var(--bg-2); box-shadow: var(--sh-2); }
.sol-cover img { width: 100%; height: 100%; object-fit: cover; }
.sol-cover::after { content: ""; position: absolute; inset: 18px; border: 1px solid rgba(255,255,255,.35); border-radius: 34px 1px 1px 1px; }
.sol-cover figcaption { position: absolute; z-index: 2; left: 18px; bottom: 18px; padding: 10px 13px; color: #fff; background: rgba(5,12,18,.76); font: 500 10px var(--font-mono); letter-spacing: .12em; }
.sol-article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: clamp(42px, 7vw, 96px); align-items: start; padding-top: clamp(56px, 7vw, 96px); }
.sol-article-main { min-width: 0; }
.sol-article-main .content { font-size: 1.02rem; line-height: 1.82; }
.sol-article-main .content > h2 { margin-top: 2.7em; padding-top: .8em; border-top: 1px solid var(--line); font-size: clamp(1.6rem, 2.5vw, 2.35rem); }
.sol-article-main .content > h3 { margin-top: 2em; font-size: 1.3rem; }
.sol-article-main .content img { border-radius: 2px; }
.sol-summary { display: grid; grid-template-columns: 110px 1fr; gap: 24px; margin-bottom: 44px; padding: 24px 0; border-top: 1px solid var(--accent-line); border-bottom: 1px solid var(--accent-line); }
.sol-summary b { color: var(--accent); font: 600 11px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.sol-summary p { line-height: 1.7; }
.sol-page .post-sidebar { position: sticky; top: 96px; order: 2; }
.sol-page .side-card { border-radius: 2px; background: transparent; }
.sol-page .side-title { color: var(--accent); }
.sol-page .toc-list a, .sol-page .side-list a { border-radius: 0; }
.sol-article-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 46px; padding-top: 24px; border-top: 1px solid var(--line); }

/* Scenario pages and descendant categories */
.solution-page .sol-page-mast,
.solution-category .sol-page-mast { padding: clamp(50px, 7vw, 90px) 0; border-bottom: 1px solid var(--line); background: linear-gradient(135deg, var(--bg-1), var(--bg)); }
.sol-page-mast-grid { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: clamp(28px, 6vw, 90px); align-items: start; }
.sol-page-number { color: var(--accent); font: 500 12px var(--font-mono); letter-spacing: .12em; }
.sol-page-mast h1 { max-width: 20ch; font-size: clamp(2.5rem, 5vw, 5rem); line-height: 1; }
.sol-page-lead { max-width: 70ch; margin-top: 22px; color: var(--text-2); font-size: 1.05rem; line-height: 1.75; }
.solution-page-body { display: grid; grid-template-columns: 180px minmax(0, 820px); gap: clamp(28px, 6vw, 90px); padding-top: clamp(56px, 7vw, 96px); padding-bottom: clamp(76px, 9vw, 126px); }
.solution-page-rail { color: var(--text-3); font: 500 10px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; }
.solution-page .content { min-width: 0; font-size: 1.02rem; line-height: 1.82; }
.solution-page .content h2 { margin-top: 2.5em; padding-top: .75em; border-top: 1px solid var(--line); font-size: clamp(1.65rem, 2.8vw, 2.5rem); }
.solution-page .content img { border-radius: 2px; }
.solution-category-list { border-top: 1px solid var(--line); }
.solution-category-card { display: grid; grid-template-columns: 52px 220px minmax(0, 1fr) 34px; gap: 22px; align-items: center; padding: 22px 6px; border-bottom: 1px solid var(--line); }
.solution-category-card:hover { background: var(--bg-1); }
.solution-category-card > span:first-child { color: var(--text-3); font: 11px var(--font-mono); }
.solution-category-card figure { margin: 0; aspect-ratio: 16/9; overflow: hidden; }
.solution-category-card img { width: 100%; height: 100%; object-fit: cover; }
.solution-category-card h2 { margin: 0 0 8px; font-size: 1.08rem; line-height: 1.35; }
.solution-category-card p { color: var(--text-2); font-size: .88rem; line-height: 1.55; }
.solution-category-card > em { color: var(--accent); font-style: normal; }

@media (max-width: 1024px) {
  .sx-hero-grid, .sol-mast-grid { grid-template-columns: 1fr; min-height: 0; }
  .sx-hero-copy h1 { max-width: 14ch; }
  .sx-hero-visual { max-height: 620px; }
  .sx-browser { grid-template-columns: 1fr; }
  .sx-seg { position: static; display: grid; grid-template-columns: 1fr 1fr; border-left: 1px solid var(--line); }
  .sx-seg-item { border-right: 1px solid var(--line); padding: 18px 14px; }
  .sx-engineering { grid-template-columns: 1fr; gap: 0; }
  .sx-engineering .sx-section:first-child { border-bottom: 1px solid var(--line); }
  .sx-cta { grid-template-columns: 1fr; }
  .sol-article-layout { grid-template-columns: 1fr; }
  .sol-page .post-sidebar { position: static; }
  .sol-page .toc-card { display: block; }
}

@media (max-width: 760px) {
  .sx-hero-grid { padding-top: 44px; gap: 36px; }
  .sx-hero-copy h1 { font-size: clamp(2.7rem, 14vw, 4.2rem); }
  .sx-hero-visual { aspect-ratio: 4/3; border-radius: 2px 36px 2px 2px; }
  .sx-stats { grid-template-columns: 1fr 1fr; }
  .sx-stat { min-height: 112px; border-bottom: 1px solid var(--line); }
  .sx-stat:nth-child(2) { border-right: 0; }
  .sx-nav { top: 62px; margin-inline: -8px; padding-left: 12px; }
  .sx-nav-label { display: none; }
  .sx-nav a { padding-inline: 10px; }
  .sx-section-head { grid-template-columns: 1fr; gap: 18px; }
  .sx-section-head h2 { font-size: clamp(2rem, 10vw, 3rem); }
  .sx-seg { display: block; }
  .sx-card { grid-template-columns: 28px 105px minmax(0, 1fr) 24px; gap: 10px; padding: 14px 0; }
  .sx-card-desc { display: none; }
  .sx-card-title { font-size: .9rem; }
  .sx-card-go { width: 24px; height: 24px; border: 0; }
  .sx-field-log { grid-template-columns: 1fr 1fr; }
  .sx-field-shot, .sx-field-shot--lead { grid-column: span 1; grid-row: span 1; min-height: 260px; }
  .sx-field-shot--lead { grid-column: span 2; min-height: 390px; }
  .sx-project { grid-template-columns: 34px 1fr 24px; gap: 12px; }
  .sx-project-data { display: none; }
  .sx-cap { grid-template-columns: 1fr; }
  .sx-cap article { min-height: 210px; }
  .sx-cta { padding: 30px 24px; }
  .sol-mast-grid { padding-top: 42px; gap: 34px; }
  .sol-mast-copy h1 { font-size: clamp(2.35rem, 11vw, 3.8rem); }
  .sol-cover { border-radius: 30px 2px 2px 2px; }
  .sol-summary { grid-template-columns: 1fr; gap: 8px; }
  .sol-page-mast-grid, .solution-page-body { grid-template-columns: 1fr; }
  .solution-page-rail { display: none; }
  .solution-category-card { grid-template-columns: 28px 98px minmax(0, 1fr) 20px; gap: 10px; }
  .solution-category-card p { display: none; }
}

@media (max-width: 480px) {
  .sx-stats { grid-template-columns: 1fr; }
  .sx-stat, .sx-stat:nth-child(2) { border-right: 0; }
  .sx-field-log { grid-template-columns: 1fr; }
  .sx-field-shot, .sx-field-shot--lead { grid-column: 1; min-height: 300px; }
  .sx-card { grid-template-columns: 24px 82px minmax(0, 1fr); }
  .sx-card-go { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .sx-pane.active { animation: none; }
  .sx-card, .sx-card-media img, .sx-field-shot img { transition: none; }
}