html, body { margin: 0; background: var(--sh-color-ground-paper); color: var(--sh-color-ink); }
body { font-family: var(--sh-font-sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

/* The DS Panel's px-16 leaves too little room on phones. */
@media (max-width: 640px) { .panel-inner { padding-left: 24px; padding-right: 24px; } }

/* Header */
.site-header { background: var(--sh-color-ground-white); border-bottom: 1px solid var(--sh-color-line); }
.site-header-inner { max-width: 1280px; margin: 0 auto; padding: 0 24px; height: 60px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-wordmark { font-size: 17px; letter-spacing: 0.02em; text-transform: uppercase; color: var(--sh-color-ink); }
.site-wordmark:hover { color: var(--sh-color-brand); }
.site-nav { display: flex; gap: 28px; align-items: center; height: 100%; font-size: 14px; font-weight: 500; }
.site-nav a { height: 60px; box-sizing: border-box; display: flex; align-items: center; border-bottom: 2px solid transparent; color: var(--sh-color-ink-muted); }
.site-nav a:hover { color: var(--sh-color-brand); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--sh-color-brand); color: var(--sh-color-brand); }
@media (max-width: 820px) { .site-nav { display: none; } }

/* Shared section layout */
.section-stack { display: flex; flex-direction: column; gap: 40px; }
.section-stack-lg { gap: 48px; }
.section-intro { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 24px 72px; align-items: end; }
.section-heading { display: flex; flex-direction: column; gap: 20px; }
.section-title { font-size: clamp(30px, 3.4vw, 40px); line-height: 1.1; margin: 0; text-wrap: balance; }
.section-lede { margin: 0; font-size: 17px; line-height: 1.55; max-width: 520px; text-wrap: pretty; }
.on-brand-muted { opacity: 0.7; }
.on-brand-lede { opacity: 0.85; }

/* 01 Hero */
.hero { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); gap: 56px 72px; align-items: start; }
.hero-copy { display: flex; flex-direction: column; gap: 28px; max-width: 600px; }
.eyebrow { color: var(--sh-color-ink-muted); display: flex; gap: 12px; align-items: center; }
.eyebrow-rule { width: 24px; height: 1px; background: var(--sh-color-line-strong); }
.hero-title { font-size: clamp(40px, 5.2vw, 64px); line-height: 1.0; margin: 0; text-wrap: balance; }
.hero-lede { font-size: 20px; line-height: 1.5; margin: 0; color: var(--sh-color-ink-muted); text-wrap: pretty; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { margin: 0; font-size: 14px; color: var(--sh-color-ink-subtle); }

.chain { display: flex; flex-direction: column; max-width: 520px; width: 100%; justify-self: end; }
.chain-box { border: 2px solid var(--sh-color-line-ink); padding: 20px 22px; display: flex; flex-direction: column; gap: 8px; background: var(--sh-color-ground-white); }
.chain-box p { margin: 0; }
.chain-request { font-size: 20px; line-height: 1.3; font-weight: 500; }
.chain-agent { font-size: 15px; line-height: 1.5; color: var(--sh-color-ink-muted); }
.chain-link { width: 2px; height: 28px; margin: 0 auto; background: var(--sh-color-line-ink); }
.chain-sitehold { background: var(--sh-color-brand); color: var(--sh-color-ink-inverse); padding: 22px 22px 20px; display: flex; flex-direction: column; gap: 14px; }
.chain-sitehold-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.chain-sitehold-name { font-size: 22px; letter-spacing: 0.02em; text-transform: uppercase; }
.chain-sitehold-tag { opacity: 0.7; }
.chain-ops { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px 16px; font-family: var(--sh-font-mono); font-size: 13px; line-height: 1.6; opacity: 0.92; }
.hero-site-body { padding: 16px 14px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 12px; }
.hero-site-hours { display: flex; flex-direction: column; gap: 8px; }

/* The website drawn as an object (hero and 03) */
.site-object { border: 2px solid var(--sh-color-line-ink); background: var(--sh-color-ground-white); display: flex; flex-direction: column; }
.site-object-bar { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; border-bottom: 1px solid var(--sh-color-line); gap: 12px; }
.site-object-url { font-family: var(--sh-font-mono); font-size: 12px; color: var(--sh-color-ink-muted); }
.site-object-nav { display: flex; gap: 14px; flex-wrap: wrap; padding: 12px 16px; border-bottom: 1px solid var(--sh-color-line); font-size: 12px; font-weight: 500; color: var(--sh-color-ink-muted); }
.site-nav-item.is-current { color: var(--sh-color-ink); font-weight: 600; }
.site-nav-item.is-changed { background: var(--sh-color-brand-tint); color: var(--sh-color-brand-fg); padding: 0 6px; }
.site-object-page { padding: 20px 16px; display: flex; flex-direction: column; gap: 14px; }
.site-object-title { font-size: 20px; font-weight: 600; line-height: 1.2; }
.site-object-block, .site-object-lines { display: flex; flex-direction: column; gap: 6px; }
.site-object-footer { padding: 10px 16px; border-top: 1px solid var(--sh-color-line); font-size: 12px; color: var(--sh-color-ink-subtle); font-variant-numeric: tabular-nums; }
.site-image { height: 64px; background: var(--sh-color-ground-sand); }
.site-image-lg { height: 72px; }
.site-line { font-size: 12px; line-height: 1.4; color: var(--sh-color-ink-muted); }
.site-line.is-changed { background: var(--sh-color-brand-tint); color: var(--sh-color-brand-fg); padding: 2px 6px; align-self: flex-start; }

/* 02 Lifecycle */
.lifecycle { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr)); gap: 2px; }
.lifecycle-step { border: 2px solid var(--sh-color-ink-inverse); padding: 16px 18px; display: flex; flex-direction: column; gap: 10px; min-height: 150px; box-sizing: border-box; }
.lifecycle-step .sh-label { opacity: 0.8; }
.lifecycle-step.is-once { opacity: 0.75; }
.lifecycle-step.is-highlight { background: var(--sh-color-ink-inverse); color: var(--sh-color-brand); }
.lifecycle-name { font-size: 20px; font-weight: 600; }
.lifecycle-text { font-size: 13px; line-height: 1.45; opacity: 0.85; }
.lifecycle-loop { display: flex; align-items: stretch; margin-top: 2px; height: 44px; padding: 0 74px; }
.lifecycle-loop-line { flex: 1; border: 2px solid var(--sh-color-ink-inverse); border-top: 0; position: relative; opacity: 0.9; }
.lifecycle-loop-arrow { position: absolute; left: -6px; top: -8px; width: 0; height: 0; border-left: 5px solid transparent; border-right: 5px solid transparent; border-bottom: 8px solid var(--sh-color-ink-inverse); }
.lifecycle-loop-label { position: absolute; left: 50%; transform: translateX(-50%); bottom: -6px; background: var(--sh-color-brand); padding: 0 10px; white-space: nowrap; }
/* The loop only reads correctly while the six steps sit on one row. */
@media (max-width: 1040px) { .lifecycle-loop { display: none; } }

/* 03 Scenarios */
.scenario-tabs { display: flex; gap: 4px; flex-wrap: wrap; border-bottom: 1px solid var(--sh-color-line-strong); }
.scenario { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); gap: 40px 64px; align-items: start; }
.scenario-agent { display: flex; flex-direction: column; gap: 28px; }
.scenario-request { display: flex; flex-direction: column; gap: 8px; }
.scenario-request-text { margin: 0; font-size: 26px; line-height: 1.25; font-weight: 600; text-wrap: balance; }
.scenario-steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; border-top: 1px solid var(--sh-color-line-strong); }
.scenario-step { display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: 8px 16px; padding: 16px 0; border-bottom: 1px solid var(--sh-color-line); }
.scenario-step-label { color: var(--sh-color-brand); padding-top: 4px; }
.scenario-step-body { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.scenario-step-text { font-size: 15px; line-height: 1.5; }
.scenario-step-op { font-family: var(--sh-font-mono); font-size: 12.5px; line-height: 1.6; color: var(--sh-color-ink-muted); word-break: break-word; }
.scenario-report { display: flex; flex-direction: column; gap: 8px; padding: 16px 18px; background: var(--sh-color-ground-sand); }
.scenario-report p { margin: 0; font-size: 15px; line-height: 1.5; }
.scenario-site { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 24px; }
.scenario-site-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.scenario-site-note { font-size: 12px; color: var(--sh-color-ink-subtle); }
.scenario-meta { margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); gap: 1px; background: var(--sh-color-line-strong); border: 1px solid var(--sh-color-line-strong); }
.scenario-meta > div { background: var(--sh-color-ground-paper); padding: 12px 14px; display: flex; flex-direction: column; gap: 4px; }
.scenario-meta dd { margin: 0; font-size: 12.5px; }
.scenario-meta dd.is-mono { font-family: var(--sh-font-mono); }