/* ============================================================
   Solenta — candidate B
   near-black · typographic · hairlines · mono labels
   one accent · no decoration without information
   ============================================================ */

:root {
  color-scheme: dark;

  --bg: #0a0a0b;
  --bg-raised: #111113;
  --bg-hover: #161618;
  --line: #222226;
  --line-strong: #2e2e34;

  --ink: #ececee;
  --mut: #9b9ba3;
  --dim: #8a8a93;

  --acc: #8b8cf0;
  --acc-ink: #0a0a0b;

  --run: #5ec8d8;
  --blk: #d4a04a;
  --done: #5ecf8e;

  --font: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --nav-h: 52px;
  --gutter: clamp(18px, 4vw, 40px);
  --measure: 68rem;
  --text: 40rem;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15.5px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: -0.01em;
  min-height: 100svh;
  overflow-x: clip;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
code, kbd, pre { font-family: var(--mono); }

::selection {
  background: var(--acc);
  color: var(--acc-ink);
}

/* ---------- a11y ---------- */
.skip-link {
  position: fixed;
  top: -100px;
  left: 12px;
  z-index: 300;
  background: var(--acc);
  color: var(--acc-ink);
  padding: 8px 14px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--acc);
}
.skip-link:focus-visible { top: 10px; }

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

/* ---------- layout ---------- */
.wrap {
  width: min(100% - 2 * var(--gutter), var(--measure));
  margin-inline: auto;
}

.section {
  padding: clamp(48px, 8vh, 88px) 0;
  border-top: 1px solid var(--line);
}

.section-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.25;
  max-width: 28ch;
  text-wrap: balance;
}

.section-copy {
  margin-top: 14px;
  max-width: 58ch;
  color: var(--mut);
  line-height: 1.7;
  text-wrap: pretty;
}

.section-copy code,
.feature-body code,
.docs-body code,
.prose code {
  font-size: 0.88em;
  color: var(--ink);
  background: var(--bg-raised);
  border: 1px solid var(--line);
  padding: 0.1em 0.4em;
}

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-inner {
  height: 100%;
  width: min(100% - 2 * var(--gutter), var(--measure));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 20px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.wordmark:hover { color: var(--ink); }
.logo-mark {
  width: 20px;
  height: 20px;
  border-radius: 4px;
}

.beta-tag {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--acc);
  border: 1px solid color-mix(in srgb, var(--acc) 45%, transparent);
  padding: 1px 6px;
  line-height: 1.4;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-links a:not(.nav-cta) {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--mut);
  padding: 6px 10px;
  transition: color 0.15s var(--ease);
}
.nav-links a:not(.nav-cta):hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
}

.nav-links .nav-cta {
  flex-shrink: 0;
  margin-left: 8px;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  padding: 6px 10px;
  cursor: pointer;
}
.nav-toggle:hover { border-color: var(--line-strong); background: var(--bg-raised); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink);
  transition: background 0.15s var(--ease), border-color 0.15s var(--ease), color 0.15s var(--ease);
  white-space: nowrap;
}
.btn:hover {
  background: var(--bg-raised);
  border-color: var(--mut);
}
.btn-solid {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn-solid:hover {
  background: var(--acc);
  border-color: var(--acc);
  color: var(--acc-ink);
}
.btn-small { padding: 6px 12px; font-size: 12px; }

/* ---------- hero ---------- */
.hero {
  padding: clamp(48px, 10vh, 96px) 0 clamp(40px, 6vh, 64px);
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2rem, 5.2vw, 3.25rem);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.08;
  max-width: 16ch;
  text-wrap: balance;
}

.hero-sub {
  margin-top: 22px;
  max-width: 48ch;
  color: var(--mut);
  font-size: clamp(0.98rem, 1.4vw, 1.08rem);
  line-height: 1.65;
  text-wrap: pretty;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 0;
  margin-top: 22px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
}
.hero-meta span + span::before {
  content: "·";
  margin: 0 10px;
  color: var(--line-strong);
}

.hero-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--dim);
}

/* ---------- agents strip ---------- */
.agents {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.agent-chip {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mut);
  border: 1px solid var(--line);
  padding: 5px 10px;
}
.agent-chip b {
  color: var(--ink);
  font-weight: 500;
}

/* ---------- feature table ---------- */
.feature-list {
  list-style: none;
  margin-top: 28px;
  border-top: 1px solid var(--line);
}

.feature-row {
  display: grid;
  grid-template-columns: 2.5rem 11rem 1fr;
  gap: 16px 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.feature-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  letter-spacing: 0.04em;
}

.feature-name {
  font-size: 0.98rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.feature-body {
  color: var(--mut);
  font-size: 0.95rem;
  line-height: 1.65;
  max-width: 58ch;
  text-wrap: pretty;
}

/* ---------- product shot ---------- */
.shot {
  padding: clamp(40px, 7vh, 72px) 0;
  border-top: 1px solid var(--line);
}

.shot figure {
  margin: 0;
}

.shot-frame {
  border: 1px solid var(--line);
  background: var(--bg-raised);
  overflow: hidden;
}
.shot-frame img {
  width: 100%;
  height: auto;
  vertical-align: top;
}

.shot .section-copy {
  margin-bottom: 24px;
}

.shot figcaption {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  line-height: 1.5;
}

/* ---------- two-col blocks ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.kv-list {
  list-style: none;
  margin-top: 24px;
  border-top: 1px solid var(--line);
}
.kv-list li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}
.kv-list dt,
.kv-k {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  padding-top: 2px;
}
.kv-list dd,
.kv-v {
  color: var(--mut);
  line-height: 1.55;
  margin: 0;
}
.kv-v b { color: var(--ink); font-weight: 500; }

/* status dots in text */
.st-run { color: var(--run); }
.st-blk { color: var(--blk); }
.st-done { color: var(--done); }

/* ---------- tools / code chips ---------- */
.tool-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin-top: 20px;
}
.tool-row code {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mut);
  border: 1px solid var(--line);
  padding: 4px 8px;
  background: transparent;
}

/* status keys constrained for readability */
#status .kv-list {
  max-width: 40rem;
}

/* ---------- keys ---------- */
.keys-list {
  list-style: none;
  margin-top: 28px;
  border-top: 1px solid var(--line);
}
.key-row {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.keycaps {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 24px;
  padding: 0 6px;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--ink);
  background: var(--bg-raised);
  border: 1px solid var(--line-strong);
  line-height: 1;
}
.key-row b {
  display: block;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin-bottom: 2px;
}
.key-row p {
  color: var(--mut);
  font-size: 0.95rem;
  line-height: 1.55;
  max-width: 48ch;
}

/* ---------- download ---------- */
.download .section-title {
  max-width: 22ch;
}
.dl-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.reqs {
  list-style: none;
  margin-top: 24px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.reqs li::before {
  content: "— ";
  color: var(--line-strong);
}

.build-block {
  margin-top: 24px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: var(--bg-raised);
  overflow-x: auto;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mut);
  max-width: 40rem;
}
.build-block .c { color: var(--dim); }
.build-block code { font-family: var(--mono); background: none; border: 0; padding: 0; color: inherit; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
}
.footer-inner {
  width: min(100% - 2 * var(--gutter), var(--measure));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
}
.foot-left {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: baseline;
}
.wordmark-sm {
  color: var(--ink);
  font-weight: 500;
}
/* The tagline beside the wordmark. Used on all four pages but unstyled in the redesign, so it
   inherited body ink and read as loud as the wordmark itself. */
.foot-note { color: var(--mut); }
.foot-right {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}
.foot-right a { color: var(--mut); }
.foot-right a:hover { color: var(--ink); }

/* ---------- docs ---------- */
.docs-wrap {
  width: min(100% - 2 * var(--gutter), var(--measure));
  margin-inline: auto;
  padding: 40px 0 96px;
  display: grid;
  grid-template-columns: 11.5rem minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.docs-toc {
  position: sticky;
  top: calc(var(--nav-h) + 20px);
}
.docs-toc b {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 12px;
}
.docs-toc a {
  display: block;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--mut);
  padding: 5px 0 5px 10px;
  border-left: 1px solid var(--line);
  transition: color 0.12s var(--ease), border-color 0.12s var(--ease);
}
.docs-toc a:hover {
  color: var(--ink);
  border-left-color: var(--acc);
}

.docs-body { min-width: 0; max-width: 42rem; }
.docs-body h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.15;
}
.docs-lede {
  color: var(--mut);
  margin-top: 16px;
  line-height: 1.7;
  max-width: 58ch;
  text-wrap: pretty;
}
.docs-body h2 {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--nav-h) + 16px);
}
.docs-body h2:first-of-type { margin-top: 40px; }
.docs-body h3 {
  font-size: 1rem;
  font-weight: 500;
  margin-top: 28px;
  letter-spacing: -0.015em;
}
.docs-body p {
  color: var(--mut);
  line-height: 1.7;
  margin-top: 12px;
  max-width: 62ch;
  text-wrap: pretty;
}
.docs-body ul,
.docs-body ol {
  color: var(--mut);
  line-height: 1.65;
  margin-top: 12px;
  padding-left: 1.25rem;
  max-width: 62ch;
}
.docs-body li { margin-top: 6px; }
.docs-body a {
  color: var(--acc);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
}
.docs-body a:hover { color: var(--ink); }
.docs-body .btn {
  text-decoration: none;
  margin-top: 8px;
}
.docs-body .btn:hover { color: var(--acc-ink); }
.docs-body kbd {
  min-width: 24px;
  height: 22px;
  font-size: 11px;
  vertical-align: 1px;
}
.docs-body .build-block { display: block; }

.callout {
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--acc);
  font-size: 14px;
  color: var(--mut);
  line-height: 1.6;
  max-width: 62ch;
}
.callout b { color: var(--ink); font-weight: 500; }

.badge-alpha {
  font-family: var(--mono);
  font-size: 0.65em;
  vertical-align: middle;
  opacity: 0.7;
}

.docs-foot-cta {
  margin-top: 48px;
}

/* ---------- changelog ---------- */
.log-wrap {
  width: min(100% - 2 * var(--gutter), 44rem);
  margin-inline: auto;
  padding: 40px 0 96px;
}
.log-wrap h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.15;
}
.log-lede {
  color: var(--mut);
  margin-top: 16px;
  line-height: 1.7;
  max-width: 58ch;
  text-wrap: pretty;
}
.log-entry {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 24px;
  align-items: start;
}
.log-ver {
  position: sticky;
  top: calc(var(--nav-h) + 20px);
}
.log-ver h2 {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.log-date {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
}
.log-items {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.log-item {
  border-left: 1px solid var(--line-strong);
  padding-left: 14px;
}
.log-item-title {
  font-size: 0.98rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.log-item-detail {
  color: var(--mut);
  line-height: 1.65;
  margin-top: 4px;
  max-width: 52ch;
  text-wrap: pretty;
  font-size: 0.95rem;
}
.log-foot-cta {
  margin-top: 48px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ---------- mobile ---------- */
@media (max-width: 800px) {
  .feature-row {
    grid-template-columns: 2rem 1fr;
    gap: 6px 12px;
  }
  .feature-num { grid-row: 1; }
  .feature-name { grid-column: 2; }
  .feature-body { grid-column: 1 / -1; }

  .split { grid-template-columns: 1fr; gap: 20px; }

  .kv-list li { grid-template-columns: 1fr; gap: 4px; }

  .key-row { grid-template-columns: 1fr; gap: 8px; }

  .docs-wrap {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .docs-toc { display: none; }

  .log-entry {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .log-ver { position: static; }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 8px var(--gutter) 12px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
  }
  .nav.is-open .nav-links {
    display: flex;
  }
  .nav-links a:not(.nav-cta) {
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-toggle { display: inline-flex; }

  .nav-links .nav-cta {
    margin-top: 10px;
    margin-left: 0;
    align-self: flex-start;
  }

  .nav-inner { position: relative; }
}