/* Hallmark · macrostructure: Workbench (adapted) · tone: technical, restrained · anchor hue: AISEC teal
 * design-system: design.md · existing tokens inherited through product.css
 * pre-emit critique: P4 H4 E4 S4 R4 V4 · contrast: pass (computed text and masks)
 * Local browser evidence and scope exceptions: PLATFORM_DESIGN_REVIEW_2026-09-07.md.
 */

.platform-page h2,
.platform-page h3 { min-width: 0; font-family: var(--font-display); font-style: normal; overflow-wrap: anywhere; }
.platform-page h2 { margin: 0; font-size: clamp(34px, 4.2vw, 54px); font-weight: 500; line-height: 1.08; letter-spacing: -.035em; }
.platform-page h3 { margin: 0; font-weight: 600; line-height: 1.3; }
.platform-page p { text-wrap: pretty; }
.platform-page .text-link { display: inline-flex; min-height: 44px; align-items: center; gap: var(--space-sm); font-size: 14px; font-weight: 500; text-decoration: underline; text-decoration-color: var(--color-line-strong); text-underline-offset: 5px; white-space: nowrap; }
.platform-page .text-link:hover { text-decoration-color: currentColor; }
.platform-page .text-link:active { opacity: .8; }
.platform-page .brand,
.platform-page .sign-in,
.platform-page .product-links a,
.platform-page .footer-links a { min-height: 44px; }
.platform-page .footer-links a { display: inline-flex; align-items: center; }
.platform-page .footer-note,
.platform-page .footer-meta { color: var(--color-muted); }
.platform-page .button { transition: transform var(--dur-short) var(--ease-out); }
.platform-page .button:hover { border-color: var(--color-line-strong); }
.platform-page .button-primary:hover { border-color: var(--color-accent); background: var(--color-accent); }
.platform-page section[id] { scroll-margin-top: 112px; }

.platform-hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: center; gap: var(--space-4xl); padding-block: 72px 96px; }
.platform-hero .hero-copy h1 { max-width: 11ch; font-size: clamp(48px, 5.3vw, 76px); line-height: 1.02; letter-spacing: -.045em; }
.platform-hero .lede { max-width: 39ch; margin-top: var(--space-xl); font-size: 19px; }
.platform-hero .hero-actions { flex-direction: row; align-items: center; gap: var(--space-lg) var(--space-xl); }
.assessment-workbench { min-width: 0; margin: 0; padding: var(--space-2xl); border: var(--rule-subtle); background: var(--color-surface); }
.workbench-inputs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); text-align: center; }
.workbench-inputs > div { display: flex; flex-direction: column; align-items: center; min-width: 0; }
.workbench-inputs svg,
.connection-root svg,
.next-protection svg { width: 32px; height: 32px; margin-bottom: var(--space-md); fill: none; stroke: var(--color-accent); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.workbench-inputs strong { font-size: 14px; font-weight: 500; }
.workbench-inputs span { margin-top: var(--space-xs); color: var(--color-muted); font-size: 11px; }
.workbench-junction { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); height: 36px; margin-top: var(--space-lg); }
.workbench-junction i { position: relative; }
.workbench-junction i::before { position: absolute; left: 50%; top: 0; height: 18px; border-left: var(--rule-strong); content: ""; }
.workbench-junction i:first-child::after,
.workbench-junction i:last-child::after { position: absolute; top: 18px; width: 100%; border-top: var(--rule-strong); content: ""; }
.workbench-junction i:first-child::after { left: 50%; }
.workbench-junction i:last-child::after { right: 50%; }
.workbench-junction i:nth-child(2)::before { height: 36px; }
.assessment-engine { display: flex; align-items: center; justify-content: center; gap: var(--space-lg); padding: var(--space-xl) var(--space-md); border-block: var(--rule-strong); }
.assessment-engine .engine-mark { width: 36px; height: 40px; flex-shrink: 0; margin: 0; background: var(--color-accent); mask: url('/mark.svg') center / contain no-repeat; }
.assessment-engine strong { display: block; font-family: var(--font-display); font-size: 22px; font-weight: 500; }
.assessment-engine span { display: block; margin-top: var(--space-xs); color: var(--color-muted); font-size: 12px; }
.workbench-output { width: 1px; height: 28px; margin-inline: auto; background: var(--color-line-strong); }
.evidence-packet { position: relative; padding: var(--space-xl); background: var(--color-report-paper); color: var(--color-report-ink); box-shadow: 0 6px 0 -2px var(--color-report-back); }
.packet-heading { display: flex; align-items: center; gap: var(--space-md); margin-bottom: var(--space-lg); }
.packet-heading svg { width: 24px; height: 28px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.4; }
.packet-heading strong { font-family: var(--font-display); font-size: 21px; font-weight: 600; }
.packet-field { display: flex; justify-content: space-between; gap: var(--space-md); padding-top: var(--space-sm); margin-top: var(--space-sm); border-top: 1px solid var(--color-report-rule); font-size: 12px; }
.packet-field span { color: var(--color-report-muted); }
.packet-field b { font-weight: 500; text-align: right; }

.platform-setup { border-block: var(--rule-subtle); background: var(--color-surface); }
.setup-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-5xl); padding-block: 80px; }
.setup-intro p { max-width: 44ch; margin: var(--space-xl) 0; color: var(--color-muted); }
.connection-brief { border-top: var(--rule-strong); }
.connection-root { display: flex; align-items: center; gap: var(--space-lg); padding-block: var(--space-xl); }
.connection-root svg { width: 40px; height: 40px; margin: 0; flex-shrink: 0; }
.connection-root h3 { font-size: 22px; }
.connection-root p { margin: var(--space-xs) 0 0; color: var(--color-accent); font-size: 13px; }
.connection-extra { margin-left: 20px; padding: var(--space-xl) 0 var(--space-xl) 36px; border-top: var(--rule-subtle); border-left: var(--rule-strong); position: relative; }
.connection-extra::before { position: absolute; top: 37px; left: 0; width: 20px; border-top: var(--rule-strong); content: ""; }
.connection-extra h3 { font-size: 19px; }
.connection-extra p { margin: var(--space-sm) 0 0; color: var(--color-muted); font-size: 15px; }
.connection-extra:last-child { padding-bottom: 0; }
.connection-extra .text-link { margin-top: var(--space-sm); }

.platform-evidence { padding-block: var(--space-5xl); }
.evidence-intro { display: flex; align-items: end; justify-content: space-between; gap: var(--space-3xl); margin-bottom: var(--space-3xl); }
.evidence-intro h2 { max-width: 13ch; }
.evidence-intro p { max-width: 42ch; margin: 0; color: var(--color-muted); }
.handoff-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: start; gap: var(--space-4xl); }
.finding-example { margin: 0; padding: var(--space-2xl); border: var(--rule-strong); background: var(--color-surface); }
.finding-example figcaption { color: var(--color-accent); font-size: 13px; }
.finding-example h3 { max-width: 24ch; margin-block: var(--space-lg) var(--space-2xl); font-size: 30px; font-weight: 500; }
.finding-example .expected-access { margin: 0 0 var(--space-sm); color: var(--color-muted); font-size: 12px; }
.account-comparison { border-block: var(--rule-strong); }
.account-comparison > div { display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg); padding-block: var(--space-md); font-size: 14px; }
.account-comparison > div + div { border-top: var(--rule-subtle); }
.account-comparison strong { flex-shrink: 0; font-size: 13px; font-weight: 500; }
.account-comparison strong span { margin-right: var(--space-xs); }
.account-comparison > div:first-child strong { color: var(--color-ok); }
.account-comparison > div:last-child strong { color: var(--color-warning); }
.finding-example dl { margin: var(--space-xl) 0 0; }
.finding-example dl > div + div { margin-top: var(--space-lg); }
.finding-example dt { font-size: 13px; font-weight: 600; }
.finding-example dd { margin: var(--space-xs) 0 0; color: var(--color-muted); font-size: 14px; }
.handoff-notes > div { padding-block: var(--space-xl); border-top: var(--rule-subtle); }
.handoff-notes > div:first-child { padding-top: 0; border: 0; }
.handoff-notes h3 { font-size: 23px; font-weight: 500; }
.handoff-notes p { margin: var(--space-md) 0 0; color: var(--color-muted); font-size: 16px; }
.access-note { max-width: 88ch; margin: var(--space-2xl) 0 0; padding-left: var(--space-lg); border-left: 2px solid var(--color-line-strong); color: var(--color-muted); font-size: 13px; }
.access-note .text-link { color: var(--color-ink); }

.platform-control { border-block: var(--rule-subtle); background: var(--color-surface); }
.control-layout { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: var(--space-4xl); padding-block: 80px; }
.control-layout h2 { max-width: 12ch; }
.control-layout p { max-width: 35ch; margin: var(--space-xl) 0 0; color: var(--color-muted); }
.responsibility-table > div { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-xl); padding-block: var(--space-lg); border-bottom: var(--rule-subtle); }
.responsibility-table > div:first-child { padding-top: 0; }
.responsibility-table strong { font-weight: 500; font-size: 18px; }
.responsibility-table strong:last-child { color: var(--color-accent); }
.responsibility-table span { color: var(--color-muted); font-size: 14px; }
.platform-next { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr); gap: var(--space-5xl); padding-block: var(--space-5xl); }
.next-assessment h2 { max-width: 16ch; }
.next-assessment p { max-width: 45ch; margin: var(--space-xl) 0; color: var(--color-muted); }
.next-protection { border-left: var(--rule-strong); padding-left: var(--space-2xl); }
.next-protection h3 { margin-top: var(--space-xl); font-size: 24px; font-weight: 500; }
.next-protection p { margin: var(--space-md) 0; color: var(--color-muted); font-size: 15px; }

@media (max-width: 1100px) {
  .platform-hero { gap: var(--space-2xl); }
  .assessment-workbench { padding: var(--space-xl); }
  .setup-layout, .platform-next { gap: var(--space-3xl); }
  .handoff-layout, .control-layout { gap: var(--space-2xl); }
}
@media (max-width: 800px) {
  .platform-hero { grid-template-columns: minmax(0, 1fr); padding-block: var(--space-3xl) var(--space-4xl); gap: var(--space-3xl); }
  .platform-hero .hero-copy h1 { max-width: 15ch; font-size: clamp(44px, 8.5vw, 66px); }
  .platform-hero .lede { max-width: 48ch; font-size: 18px; }
  .assessment-workbench { width: 100%; max-width: 560px; padding: var(--space-2xl); }
  .setup-layout, .control-layout, .platform-next, .handoff-layout { grid-template-columns: minmax(0, 1fr); gap: var(--space-3xl); }
  .setup-layout, .control-layout, .platform-next, .platform-evidence { padding-block: var(--space-4xl); }
  .setup-intro h2, .control-layout h2 { max-width: 18ch; }
  .evidence-intro { display: block; }
  .evidence-intro h2 { max-width: 18ch; }
  .evidence-intro p { margin-top: var(--space-xl); }
  .next-protection { border-left: 0; border-top: var(--rule-strong); padding: var(--space-2xl) 0 0; }
  .next-protection p { max-width: 48ch; }
}
@media (max-width: 420px) {
  .platform-page .wrap { width: calc(100% - 32px); }
  .platform-page .product-nav { gap: var(--space-sm); padding-left: var(--space-lg); }
  .platform-page .nav-actions { gap: var(--space-sm); }
  .platform-page .nav-actions .button { padding-inline: var(--space-md); }
  .platform-hero .hero-copy h1 { font-size: 44px; }
  .assessment-workbench { padding: var(--space-xl) var(--space-lg); }
  .workbench-inputs strong { font-size: 12px; }
  .workbench-inputs span { font-size: 10px; }
  .assessment-engine { gap: var(--space-md); padding-inline: 0; }
  .assessment-engine strong { font-size: 20px; }
  .assessment-engine span { font-size: 11px; }
  .evidence-packet { padding: var(--space-lg); }
  .packet-heading strong { font-size: 19px; }
  .packet-field { flex-direction: column; gap: 2px; }
  .packet-field b { text-align: left; }
  .finding-example { padding: var(--space-xl); }
  .finding-example h3 { font-size: 26px; }
  .account-comparison > div { gap: var(--space-sm); font-size: 13px; }
  .responsibility-table > div { gap: var(--space-lg); }
}
@media (prefers-reduced-motion: reduce) {
  .platform-page .button, .platform-page .skip-link { transition: none; }
  .platform-page .button:hover, .platform-page .button:active { transform: none; }
}