/* PowerShell Engineer — powershellengineer.com
   Palette from the Windows PowerShell console. Layout from the pipeline. */

:root {
  --console: #012456;
  --well: #00102e;
  --paper: #dde6f2;
  --dim: #7c93b5;
  --cyan: #4fd8e8;
  --amber: #ffc857;
  --pass: #6ee7a8;
  --line: #163a6b;

  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;

  --rail-x: 8.5rem; /* where the pipeline rule sits from the section's left edge */
  --maxw: 62rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--console);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-underline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

a {
  color: var(--cyan);
  text-decoration-color: color-mix(in srgb, var(--cyan) 45%, transparent);
}
a:hover {
  text-decoration-color: var(--cyan);
}

code,
.mono {
  font-family: var(--font-mono);
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip {
  position: fixed;
  left: -999px;
  top: 0.5rem;
  z-index: 20;
  background: var(--well);
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--cyan);
  border-radius: 6px;
}
.skip:focus {
  left: 0.5rem;
}

/* ── Nav ──────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem clamp(1rem, 4vw, 2.5rem);
  background: color-mix(in srgb, var(--console) 88%, black);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--paper);
  text-decoration: none;
  font-weight: 600;
}
.nav__mark {
  color: var(--cyan);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 2px 6px;
  background: var(--well);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 2.2vw, 1.6rem);
}
.nav__links a {
  color: var(--dim);
  text-decoration: none;
}
.nav__links a:hover {
  color: var(--paper);
}
.nav__repo {
  color: var(--cyan) !important;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
}

/* ── Pipeline stages ──────────────────────────────────────────────── */
.stage {
  position: relative;
  padding: clamp(3rem, 8vw, 6rem) clamp(1rem, 4vw, 2.5rem);
}
.stage__body {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: calc(var(--rail-x) + 1.5rem);
}
/* the continuous rule: one per section, stacked so they connect */
.stage__body::before {
  content: "";
  position: absolute;
  left: max(calc((100% - var(--maxw)) / 2 + 1rem), 1rem);
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--line);
}
.stage__rail {
  position: absolute;
  margin: 0;
  left: max(calc((100% - var(--maxw)) / 2 + 1rem), 1rem);
  transform: translate(-50%, 0);
  top: clamp(3rem, 8vw, 6rem);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--cyan);
  background: var(--console);
  padding: 0.35rem 0;
  writing-mode: horizontal-tb;
}
/* the node dot on the rule */
.stage__rail::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -0.7rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--console);
  border: 2px solid var(--cyan);
  transform: translateX(-50%);
}

/* ── Type scale ───────────────────────────────────────────────────── */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--dim);
  margin: 0 0 1.2rem;
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.03;
  font-size: clamp(2.1rem, 6vw, 4rem);
  margin: 0 0 1.1rem;
  max-width: 20ch;
}
.hero__sub {
  color: var(--dim);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  max-width: 46ch;
  margin: 0 0 1.8rem;
}
.h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.015em;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  margin: 0 0 0.6rem;
}
.section-lede {
  color: var(--dim);
  max-width: 52ch;
  margin: 0.5rem 0 1.6rem;
}

/* ── Buttons ──────────────────────────────────────────────────────── */
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 2.6rem;
}
.btn {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  text-decoration: none;
  padding: 0.7rem 1.2rem;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: transform 0.12s ease, background 0.12s ease;
}
.btn--primary {
  background: var(--cyan);
  color: var(--well);
  font-weight: 600;
}
.btn--primary:hover {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--cyan) 88%, white);
}
.btn--ghost {
  color: var(--paper);
  border-color: var(--line);
  background: var(--well);
}
.btn--ghost:hover {
  border-color: var(--cyan);
}

/* ── Diff ─────────────────────────────────────────────────────────── */
.diff {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--well);
  overflow: hidden;
}
.diff__prompt {
  margin: 0;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--paper);
}
.diff__prompt-label {
  color: var(--dim);
  margin-right: 0.7rem;
}
.diff__panes {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.pane {
  margin: 0;
  min-width: 0;
  border-right: 1px solid var(--line);
}
.pane:last-child {
  border-right: none;
}
.pane__head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line);
}
.pane__tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--amber);
}
.pane__tag--ok {
  color: var(--pass);
}
.pane__meta {
  font-size: 0.78rem;
  color: var(--dim);
}
.code {
  margin: 0;
  padding: 0.6rem 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--paper);
}
.code b {
  color: var(--cyan);
  font-weight: 500;
}
.code em {
  color: var(--amber);
  font-style: normal;
}
.code .c {
  color: var(--dim);
}
.cl {
  display: block;
  padding-right: 0.8rem;
  white-space: pre;
}
.cl .g {
  display: inline-block;
  width: 0.85rem;
  margin-right: 0.55rem;
  border-left: 2px solid transparent;
  align-self: stretch;
}
.cl.bad {
  background: color-mix(in srgb, var(--amber) 7%, transparent);
}
.cl.bad .g {
  border-left-color: var(--amber);
}
.cl.ok .g {
  border-left-color: var(--pass);
}
.pane__score {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.9rem 1rem;
  border-top: 1px solid var(--line);
}
.score__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 2.2rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.score__num--bad {
  color: var(--amber);
}
.score__num--ok {
  color: var(--pass);
}
.score__label {
  font-size: 0.82rem;
  color: var(--dim);
}
.diff__caption {
  margin: 0;
  padding: 0.85rem 1.1rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--dim);
}

/* line-by-line reveal on the "after" pane */
.code--after .cl {
  transition: opacity 0.25s ease;
}
.js-anim .code--after .cl {
  opacity: 0;
}

/* ── Covers list ──────────────────────────────────────────────────── */
.covers {
  list-style: none;
  margin: 1.4rem 0 1.6rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem 2rem;
}
.covers li {
  position: relative;
  padding-left: 1.5rem;
}
.covers li::before {
  content: "|";
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-family: var(--font-mono);
}
.covers code {
  color: var(--cyan);
  font-size: 0.85em;
}
.link-arrow {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-decoration: none;
}
.link-arrow:hover span {
  padding-left: 0.2rem;
}

/* ── Cards ────────────────────────────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1rem;
}
.card {
  background: var(--well);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover {
  border-color: color-mix(in srgb, var(--cyan) 55%, var(--line));
  transform: translateY(-2px);
}
.card--link {
  text-decoration: none;
  color: inherit;
}
.card__open {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan);
}
.card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}
.card__icon {
  width: 34px;
  height: 34px;
  color: var(--cyan);
  flex: none;
}
.card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  margin: 0;
}
.card__desc {
  color: var(--dim);
  font-size: 0.92rem;
  margin: 0;
}
.chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  white-space: nowrap;
}
.chip--available {
  color: var(--pass);
  border-color: color-mix(in srgb, var(--pass) 45%, var(--line));
}
.chip--building {
  color: var(--amber);
  border-color: color-mix(in srgb, var(--amber) 45%, var(--line));
}
.chip--planned {
  color: var(--dim);
}

/* ── Copy block ───────────────────────────────────────────────────── */
.copyblock {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--well);
  margin: 1.4rem 0;
}
.copyblock .code {
  padding: 1.1rem 1.2rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--pass);
}
.copyblock__btn {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--paper);
  background: var(--console);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.3rem 0.6rem;
  cursor: pointer;
}
.copyblock__btn:hover {
  border-color: var(--cyan);
}
.copyblock__btn.is-copied {
  color: var(--pass);
  border-color: color-mix(in srgb, var(--pass) 50%, var(--line));
}

/* ── Author ───────────────────────────────────────────────────────── */
.author {
  display: flex;
  gap: 1.4rem;
  align-items: flex-start;
}
.author__photo {
  flex: none;
}
.author__text p {
  color: var(--dim);
  max-width: 54ch;
}
.author__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

/* ── Legal / prose pages ──────────────────────────────────────────── */
.legal {
  max-width: 46rem;
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 5rem) clamp(1rem, 4vw, 2.5rem);
}
.legal h1 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.015em;
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 0.6rem 0 0.4rem;
}
.legal h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  margin: 2.2rem 0 0.5rem;
}
.legal p,
.legal li {
  color: var(--paper);
}
.legal .lede {
  color: var(--dim);
  font-size: 1.1rem;
}
.legal ul {
  padding-left: 1.1rem;
}
.legal li {
  margin: 0.35rem 0;
}
.legal .updated {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--dim);
  margin-top: 0.4rem;
}
.legal code {
  color: var(--cyan);
  font-size: 0.9em;
}

/* ── Standard document page ───────────────────────────────────────── */
.doc {
  max-width: 76rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: 3rem;
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1rem, 4vw, 2.5rem);
}
.doc__toc {
  position: sticky;
  top: 5rem;
  align-self: start;
  max-height: calc(100vh - 7rem);
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  border-left: 2px solid var(--line);
  padding-left: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.doc__toc-head {
  color: var(--cyan);
  margin: 0 0 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.doc__toc a {
  color: var(--dim);
  text-decoration: none;
}
.doc__toc a:hover {
  color: var(--paper);
}
.doc__body {
  min-width: 0;
}
.doc__body h1 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.015em;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0.4rem 0 1rem;
  line-height: 1.1;
}
.doc__body h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  margin: 2.4rem 0 0.6rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  scroll-margin-top: 5rem;
}
.doc__body h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--cyan);
  margin: 1.5rem 0 0.4rem;
  scroll-margin-top: 5rem;
}
.doc__body p,
.doc__body li {
  color: var(--paper);
  line-height: 1.7;
}
.doc__body a {
  color: var(--cyan);
}
.doc__body > p:first-of-type strong {
  color: var(--paper);
}
.doc-list {
  padding-left: 1.3rem;
  margin: 0.7rem 0;
}
.doc-list li {
  margin: 0.3rem 0;
}
.doc-check {
  list-style: none;
  margin-left: -1.3rem;
  padding-left: 1.9rem;
  position: relative;
}
.doc-check .box {
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 0.85rem;
  height: 0.85rem;
  border: 1.5px solid var(--dim);
  border-radius: 3px;
}
.doc-check .box--on {
  background: var(--pass);
  border-color: var(--pass);
}
.doc__body code {
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: 0.85em;
  background: color-mix(in srgb, var(--cyan) 10%, transparent);
  padding: 0.05em 0.35em;
  border-radius: 4px;
}
.doc-code {
  background: var(--well);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--paper);
  margin: 1rem 0;
}
.doc-code code {
  color: inherit;
  background: none;
  padding: 0;
  font-size: inherit;
}
.doc-code .c {
  color: var(--dim);
}
.doc-tablewrap {
  overflow-x: auto;
  margin: 1rem 0;
}
.doc-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
}
.doc-table th,
.doc-table td {
  text-align: left;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--line);
  vertical-align: top;
}
.doc-table th {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--cyan);
  background: var(--well);
}
.doc-hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 2.2rem 0;
}
.doc__body blockquote {
  margin: 1rem 0;
  padding: 0.4rem 0 0.4rem 1rem;
  border-left: 2px solid var(--cyan);
  color: var(--dim);
}
@media (max-width: 860px) {
  .doc {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .doc__toc {
    display: none;
  }
}

/* ── Footer ───────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--line);
  padding: 2.2rem clamp(1rem, 4vw, 2.5rem);
  max-width: calc(var(--maxw) + 5rem);
  margin: 0 auto;
}
.footer__row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}
.footer__row a {
  text-decoration: none;
}
.footer__legal {
  color: var(--dim);
  font-size: 0.8rem;
  margin: 0;
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .stage__body {
    padding-left: 0;
  }
  .stage__body::before,
  .stage__rail::after {
    display: none;
  }
  .stage__rail {
    position: static;
    transform: none;
    padding: 0 0 0.6rem;
    background: none;
  }
  .covers {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .diff__panes {
    grid-template-columns: 1fr;
  }
  .pane {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
  .nav__brand {
    font-size: 0.8rem;
  }
  .nav__links a:not(.nav__repo) {
    display: none;
  }
  .author {
    flex-direction: column;
  }
}