/* VXP · implementation guides (/implement/). Built on vxp.css: same tokens, radii and typography. */

/* ── Header and path ────────────────────────────────────────────────────────── */
.imp-hero { padding-block: clamp(64px, 9vw, 120px) clamp(48px, 6vw, 80px); position: relative; overflow: hidden; isolation: isolate; }
.imp-hero::before { content: ""; position: absolute; z-index: -1; inset: -40% -20% auto 40%; height: 140%; pointer-events: none; filter: blur(10px);
	background: radial-gradient(closest-side at 60% 40%, rgba(65, 144, 174, 0.16), transparent 70%), radial-gradient(closest-side at 85% 60%, rgba(194, 107, 77, 0.12), transparent 72%); }
.imp-hero__in { display: grid; gap: 22px; max-width: 900px; }
.imp-hero .h1 { font-size: clamp(40px, 5.4vw, 72px); }

.route { margin-top: clamp(40px, 6vw, 72px); display: grid; grid-template-columns: minmax(0, 4fr) 48px minmax(0, 7fr); align-items: stretch; border-top: 1px solid var(--ink); }
.route__q { padding: 22px 0 0; display: grid; gap: 14px; align-content: start; }
.route__q h2 { font-size: clamp(22px, 2.2vw, 30px); letter-spacing: -0.03em; line-height: 1.1; }
.route__q p { color: var(--ink-soft); font-size: 15.5px; }
.route__q ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; font-size: 15px; }
.route__arrow { display: flex; justify-content: center; padding-top: 26px; color: var(--mute); font: 400 20px var(--mono); }
.roles { list-style: none; margin: 0; padding: 0; display: grid; }
.roles li { border-bottom: 1px solid var(--line); }
.roles a { display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; gap: 14px; padding: 18px 0; text-decoration: none; align-items: baseline; }
.roles a:hover b { text-decoration: underline; text-underline-offset: 4px; }
.roles span { font: 400 12.5px var(--mono); color: var(--mute); }
.roles b { font-weight: 500; font-size: 19px; letter-spacing: -0.02em; display: block; }
.roles em { font-style: normal; color: var(--ink-soft); font-size: 14.5px; display: block; margin-top: 4px; }
.roles i { font: 400 12px var(--mono); color: var(--mute); font-style: normal; white-space: nowrap; }
@media (max-width: 820px) {
	.route { grid-template-columns: 1fr; }
	.route__arrow { justify-content: flex-start; padding: 18px 0 4px; }
	.roles i { display: none; }
	.roles a { grid-template-columns: 32px minmax(0, 1fr); }
}

.legend { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 28px; font: 400 12.5px var(--mono); color: var(--ink-soft); }
.legend span { display: inline-flex; gap: 8px; align-items: center; }
.legend span::before { content: ""; width: 14px; height: 2px; background: currentColor; }
.legend .lg-cap { color: #2e7556; }
.legend .lg-spec { color: var(--permit); }
.legend .lg-exp { color: #8a5a1f; }

/* ── Guide ──────────────────────────────────────────────────────────────────── */
.guide { padding-block: clamp(72px, 9vw, 130px); border-top: 1px solid var(--line); }
.guide--soft { background: var(--soft); }
.guide__head { display: grid; gap: 16px; max-width: 860px; margin-bottom: clamp(36px, 5vw, 64px); }
.guide__grid { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: clamp(28px, 4vw, 56px); align-items: start; }
.toc { position: sticky; top: 88px; display: grid; gap: 2px; font-size: 14px; }
.toc p { font: 400 12px var(--mono); color: var(--mute); margin-bottom: 8px; }
.toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.toc a { display: grid; grid-template-columns: 26px 1fr; gap: 4px; padding: 6px 0; color: var(--ink-soft); text-decoration: none; line-height: 1.3; }
.toc a:hover { color: var(--ink); }
.toc a span { font: 400 12px var(--mono); color: var(--mute); padding-top: 1px; }
@media (max-width: 1000px) { .guide__grid { grid-template-columns: 1fr; } .toc { position: static; } .toc ol { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 20px; } }
@media (max-width: 560px) { .toc ol { grid-template-columns: 1fr; } }

.steps { display: grid; min-width: 0; }
.step { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(20px, 3vw, 40px); padding: clamp(28px, 3.5vw, 44px) 0; border-top: 1px solid var(--line); align-items: start; scroll-margin-top: 80px; }
.step:first-child { border-top: 1px solid var(--ink); }
.step--wide { grid-template-columns: minmax(0, 1fr); }
.step__text { display: grid; gap: 14px; min-width: 0; }
.step__n { font: 400 12.5px var(--mono); color: var(--mute); }
.step h3 { font-size: clamp(21px, 2vw, 27px); letter-spacing: -0.03em; line-height: 1.12; }
.step p, .step li { color: var(--ink-soft); font-size: 15.5px; }
.step ul, .step ol { margin: 0; padding-left: 18px; display: grid; gap: 7px; }
.step__objs { display: grid; gap: 14px; min-width: 0; }
@media (max-width: 1180px) { .step { grid-template-columns: minmax(0, 1fr); } }

/* Linked normative requirement */
.req { border-left: 2px solid var(--permit); padding: 2px 0 2px 14px; display: grid; gap: 6px; }
.req p { font-size: 14.5px; color: var(--ink); }
.req a { font: 400 12.5px var(--mono); color: var(--permit); }
.bcp { font: 500 12.5px var(--mono); letter-spacing: 0.02em; }
.exp { font: 400 12px var(--mono); color: #8a5a1f; }

/* Objects (always dark, like the walkthrough) */
.code { position: relative; border-radius: var(--r-md); background: #0c0d0d; border: 1px solid #1d1f1f; overflow: hidden; min-width: 0; }
.code__head { display: flex; justify-content: space-between; gap: 12px; padding: 9px 74px 9px 14px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); font: 400 12px var(--mono); color: rgba(243, 243, 239, 0.6); }
.code__head b { color: var(--on-deep); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.code__head span { white-space: nowrap; }
.code[data-src="captured"] .code__head span { color: #8fd1b0; }
.code[data-src="spec"] .code__head span { color: #9cc3d8; }
.code[data-src="tests"] .code__head span { color: #e0c3a2; }
.code pre { margin: 0; padding: 14px; max-height: 380px; overflow: auto; font-size: 12.5px; line-height: 1.6; color: rgba(243, 243, 239, 0.8); tab-size: 2; }
.code pre:focus-visible { outline: 2px solid var(--agent); outline-offset: -2px; }
.copy { position: absolute; top: 5px; right: 6px; height: 26px; padding: 0 10px; border-radius: var(--r-sm); border: 1px solid rgba(255, 255, 255, 0.18); background: #151717; color: var(--on-deep); font: 400 12px var(--sans); cursor: pointer; }
.copy:hover { border-color: rgba(255, 255, 255, 0.45); }
.copy:focus-visible { outline: 2px solid var(--agent); }
@media (max-width: 520px) { .code__head { flex-direction: column; gap: 2px; } }

/* More compact inner tables */
.step .tbl table { font-size: 13.5px; min-width: 560px; }
.step .tbl th, .step .tbl td { padding: 10px 12px; }
.step .tbl td code { white-space: nowrap; }

/* Final check per role */
.check { margin-top: clamp(36px, 5vw, 56px); display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(20px, 4vw, 56px); padding-top: 28px; border-top: 1px solid var(--ink); }
.check h3 { font-size: clamp(22px, 2.2vw, 30px); letter-spacing: -0.03em; line-height: 1.1; }
.check ol { list-style: none; margin: 0; padding: 0; display: grid; counter-reset: c; }
.check li { counter-increment: c; display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 8px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 15px; color: var(--ink-soft); }
.check li::before { content: counter(c, decimal-leading-zero); font: 400 12px var(--mono); color: var(--mute); padding-top: 3px; }
.check li a { font: 400 12px var(--mono); color: var(--permit); }
@media (max-width: 820px) { .check { grid-template-columns: 1fr; } }

/* Implementation questions */
.faq { display: grid; border-top: 1px solid var(--line-deep); }
.faq details { border-bottom: 1px solid var(--line-deep); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 40px 20px 0; position: relative; font-size: clamp(17px, 1.6vw, 20px); letter-spacing: -0.015em; line-height: 1.3; color: var(--on-deep); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font: 400 20px var(--mono); color: var(--on-deep-soft); }
.faq details[open] summary::after { content: "−"; }
.faq summary:focus-visible { outline: 2px solid var(--agent); }
.faq .ans { padding: 0 0 22px; display: grid; gap: 10px; max-width: 72ch; color: var(--on-deep-soft); font-size: 15.5px; }
.faq .ans a { color: var(--on-deep); font: 400 12.5px var(--mono); }
.faq .ans p { max-width: none; }

/* Long identifiers in running text: break them instead of widening the page */
.step__text code, .check code, .faq code, .imp-hero code { overflow-wrap: anywhere; }

/* Adjustments after reviewing the screenshots */
.guide__grid { grid-template-columns: 180px minmax(0, 1fr); }
@media (max-width: 1000px) { .guide__grid { grid-template-columns: 1fr; } }
.req { display: block; }
.req p + p { margin-top: 6px; }
.req a { display: inline-block; margin: 8px 14px 0 0; }
.code pre { white-space: pre-wrap; overflow-wrap: anywhere; }
.step__text .tbl table { min-width: 0; }
.step__text .tbl td code { white-space: normal; overflow-wrap: anywhere; }
.step--wide .tbl table { min-width: 640px; }
.step__objs .tbl table { min-width: 0; }
.step__objs .tbl td code { white-space: normal; overflow-wrap: anywhere; }
@media (max-width: 820px) { .route__arrow { display: none; } .route > .route__q + .route__arrow + .route__q { margin-top: 28px; border-top: 1px solid var(--line); } }