/* ───────────── Tokens ───────────── */
:root {
  --bg: #0b0d10;
  --bg-alt: #0f1216;
  --surface: #14181e;
  --surface-2: #1a1f27;
  --line: #232932;
  --line-2: #333b46;
  --fg: #eceae4;
  --fg-2: #c3c8cf;
  --muted: #8e97a3;
  --accent: #3ddc97;
  --accent-ink: #04140d;
  --accent-soft: rgba(61, 220, 151, 0.12);

  --c-llm: #9aa8ff;
  --c-ret: #f2c14e;
  --c-tool: #ff8f6b;
  --c-eval: #3ddc97;

  --font-display: "Newsreader", Georgia, "Times New Roman", serif;
  --font-sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --container: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 12px;
  --radius-sm: 8px;
  --section-y: clamp(80px, 11vw, 144px);
  --ease-out: cubic-bezier(0.2, 0.7, 0.2, 1);
  --nav-h: 64px;

  color-scheme: dark;
}

/* ───────────── Base ───────────── */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
em { font-style: italic; }
small { font-size: 0.8em; }

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip {
  position: absolute;
  left: 16px; top: -100px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: var(--radius-sm);
  font-weight: 600;
}
.skip:focus { top: 12px; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ───────────── Type ───────────── */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.6rem, 6.2vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.display em,
.h2 em {
  color: var(--accent);
}
.display em { display: block; }
.display--md { font-size: clamp(2.2rem, 5vw, 4.25rem); }
.display--md em { display: inline; }

.h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.lede {
  color: var(--fg-2);
  font-size: clamp(1.0625rem, 1.4vw, 1.2rem);
  line-height: 1.6;
  max-width: 38rem;
  text-wrap: pretty;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ───────────── Buttons & links ───────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 500;
  font-size: 0.975rem;
  cursor: pointer;
  transition: background-color 180ms var(--ease-out), border-color 180ms var(--ease-out),
    color 180ms var(--ease-out), transform 180ms var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: var(--accent-ink); }
.btn--primary:hover { background: #5fe6ab; }
.btn--ghost { border-color: var(--line-2); color: var(--fg); background: transparent; }
.btn--ghost:hover { border-color: var(--fg-2); background: var(--surface); }
.btn--small { min-height: 44px; padding: 0 16px; font-size: 0.9rem; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  color: var(--fg-2);
  font-weight: 500;
  transition: color 180ms var(--ease-out);
}
.link-arrow svg { transition: transform 180ms var(--ease-out); }
.link-arrow:hover { color: var(--accent); }
.link-arrow:hover svg { transform: translate(2px, -2px); }

/* ───────────── Nav ───────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  background: rgba(11, 13, 16, 0.72);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms var(--ease-out);
}
.nav.is-scrolled { border-bottom-color: var(--line); }
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav__brand { display: inline-flex; align-items: center; gap: 12px; min-height: 44px; }
.nav__mark {
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--fg);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.nav__name { font-weight: 500; }

.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__links a:not(.btn) {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  color: var(--muted);
  font-size: 0.95rem;
  border-radius: 999px;
  transition: color 160ms var(--ease-out);
}
.nav__links a:not(.btn):hover,
.nav__links a[aria-current="true"] { color: var(--fg); }
.nav__links .btn { margin-left: 8px; }

.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  place-items: center;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
}

@media (max-width: 760px) {
  .nav__toggle { display: grid; }
  .nav__links {
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 20px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    display: none;
  }
  .nav.is-open .nav__links { display: flex; }
  .nav__links a:not(.btn) { padding: 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); border-radius: 0; min-height: 52px; }
  .nav__links .btn { margin: 16px 0 0; }
}

/* ───────────── Hero ───────────── */
.hero {
  position: relative;
  padding-top: clamp(48px, 8vw, 104px);
  padding-bottom: clamp(56px, 8vw, 96px);
  overflow: hidden;
}
.hero::before {
  /* faint engineering grid, fading out */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 70% 20%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 70% 20%, #000 20%, transparent 75%);
  pointer-events: none;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.hero__copy { display: grid; gap: 28px; }
.hero__cta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; margin-top: 4px; }

.status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-self: start;
  padding: 6px 14px 6px 12px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--fg-2);
}
.status__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  flex: none;
}

@media (min-width: 1025px) {
  .hero .display { font-size: clamp(2.75rem, 4.6vw, 4.25rem); }
}
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
}

/* ───────────── Trace (signature element) ───────────── */
.trace {
  --T: 2600ms; /* playback duration for 1800ms of simulated time */
  position: relative;
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-alt) 100%);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
}
.trace__bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.trace__id { color: var(--muted); }
.trace__state { margin-right: auto; }
.trace__running { color: var(--c-ret); }
.trace__done { color: var(--accent); display: none; }
.trace.is-done .trace__running { display: none; }
.trace.is-done .trace__done { display: inline; }
.trace__replay {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: transparent;
  color: var(--fg-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: border-color 160ms var(--ease-out), color 160ms var(--ease-out);
}
.trace__replay:hover { border-color: var(--fg-2); color: var(--fg); }
/* enlarge hit area to 44px without growing the visual */
.trace__replay { position: relative; }
.trace__replay::after { content: ""; position: absolute; inset: -4px; }

.trace__query {
  margin: 14px 0 16px;
  color: var(--fg);
  font-size: 0.82rem;
  line-height: 1.5;
}
.trace__query span { color: var(--accent); margin-right: 6px; }

.trace__grid {
  --name-col: 9.5rem;
  display: grid;
  grid-template-columns: var(--name-col) minmax(0, 1fr) 3.4rem;
  column-gap: 12px;
  position: relative;
}
.trace__ruler {
  grid-column: 2;
  display: flex;
  justify-content: space-between;
  padding-bottom: 6px;
  color: var(--muted);
  font-size: 0.68rem;
}
.trace__spans {
  grid-column: 1 / -1;
  grid-row: 2;
  display: grid;
  grid-template-columns: subgrid;
  row-gap: 6px;
}
.span {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: subgrid;
  align-items: center;
  min-height: 24px;
}
.span__name { color: var(--fg-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.span__name small { color: var(--muted); font-size: 0.9em; }
.span__track {
  position: relative;
  height: 14px;
  background: repeating-linear-gradient(to right, var(--line) 0 1px, transparent 1px 25%);
  border-radius: 3px;
}
.span__track i {
  position: absolute;
  top: 0; bottom: 0;
  left: calc(var(--s) * 100%);
  width: max(calc(var(--w) * 100%), 4px);
  border-radius: 3px;
  background: var(--kind);
  transform-origin: left center;
}
.span__dur { color: var(--muted); text-align: right; font-variant-numeric: tabular-nums; }

.span[data-kind="llm"], .legend[data-kind="llm"], [data-kind="llm"] { --kind: var(--c-llm); }
.span[data-kind="ret"], .legend[data-kind="ret"], [data-kind="ret"] { --kind: var(--c-ret); }
.span[data-kind="tool"], .legend[data-kind="tool"], [data-kind="tool"] { --kind: var(--c-tool); }
.span[data-kind="eval"], .legend[data-kind="eval"], [data-kind="eval"] { --kind: var(--c-eval); }

.trace__playhead {
  grid-column: 2;
  grid-row: 2;
  position: relative;
  pointer-events: none;
}
.trace__playhead i {
  position: absolute;
  top: -4px; bottom: -4px;
  left: 0;
  width: 1px;
  background: var(--fg);
  opacity: 0;
  box-shadow: 0 0 10px rgba(236, 234, 228, 0.6);
}

.trace__answer {
  margin-top: 16px;
  padding: 12px 14px;
  border-left: 2px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--fg);
}
.cite {
  display: inline-grid;
  place-items: center;
  min-width: 18px; height: 18px;
  margin-left: 3px;
  padding: 0 4px;
  border-radius: 4px;
  background: var(--surface-2);
  border: 1px solid var(--line-2);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--fg-2);
  vertical-align: 2px;
}

.trace__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.trace__stats div { display: flex; gap: 6px; }
.trace__stats dt { color: var(--muted); }
.trace__stats dd { color: var(--fg); font-variant-numeric: tabular-nums; }
.trace__stats .is-pass dd { color: var(--accent); }

.trace__caption {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.7rem;
}
.legend { display: inline-flex; align-items: center; gap: 6px; }
.legend::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--kind); }

/* trace animation states (only when JS is running) */
.js .trace .span { opacity: 0.35; transition: opacity 200ms linear calc(var(--s) * var(--T)); }
.js .trace .span__track i {
  transform: scaleX(0);
  transition: transform calc(var(--w) * var(--T)) linear calc(var(--s) * var(--T));
}
.js .trace .trace__answer,
.js .trace .trace__stats {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 400ms var(--ease-out), transform 400ms var(--ease-out);
}
.js .trace.is-playing .span { opacity: 1; }
.js .trace.is-playing .span__track i { transform: scaleX(1); }
.js .trace.is-playing .trace__playhead i { animation: playhead var(--T) linear forwards; }
.js .trace.is-done .trace__answer,
.js .trace.is-done .trace__stats { opacity: 1; transform: none; }
.js .trace.is-done .trace__stats { transition-delay: 120ms; }

@keyframes playhead {
  0% { left: 0; opacity: 1; }
  95% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

@media (max-width: 480px) {
  .trace { padding: 14px; font-size: 0.72rem; }
  .trace__grid { --name-col: 7.4rem; column-gap: 8px; grid-template-columns: var(--name-col) minmax(0, 1fr) 2.8rem; }
  .span__name small { display: none; }
  .trace__ruler span:nth-child(even) { visibility: hidden; }
  .trace__bar { flex-wrap: wrap; }
}

/* ───────────── Proof strip ───────────── */
.proof {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: clamp(56px, 8vw, 96px);
  border-top: 1px solid var(--line);
}
.proof div {
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
  padding: 24px 24px 0 0;
}
.proof div + div { padding-left: 24px; border-left: 1px solid var(--line); }
.proof dd {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.proof dt { color: var(--muted); font-size: 0.9rem; max-width: 14rem; }

@media (max-width: 760px) {
  .proof { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proof div { padding: 20px 16px 20px 0; border-bottom: 1px solid var(--line); }
  .proof div + div { padding-left: 0; border-left: 0; }
  .proof div:nth-child(even) { padding-left: 16px; border-left: 1px solid var(--line); }
}

/* ───────────── Sections ───────────── */
.section { padding-block: var(--section-y); }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section__head {
  display: grid;
  gap: 18px;
  max-width: 52rem;
  margin-bottom: clamp(40px, 6vw, 72px);
}
.section__lede { color: var(--fg-2); max-width: 40rem; text-wrap: pretty; }

/* ───────────── Case studies ───────────── */
.cases { display: grid; gap: 24px; }
.case {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.5fr) minmax(0, 1fr);
  grid-template-areas:
    "head body results"
    "head tags results";
  gap: 24px 40px;
  padding: clamp(24px, 3.5vw, 40px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 220ms var(--ease-out);
}
.case:hover { border-color: var(--line-2); }

.case__head { grid-area: head; display: grid; align-content: start; gap: 10px; }
.case__idx {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 8px;
}
.case__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  order: 2;
}
.case__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.6rem, 2.4vw, 2rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.case__kicker { color: var(--fg-2); font-size: 0.975rem; }
/* visual order: idx, title, kicker, meta */
.case__idx { order: 0; }
.case__title { order: 1; }
.case__kicker { order: 1; }
.case__meta { order: 3; padding-top: 6px; }

.case__body { grid-area: body; display: grid; gap: 22px; align-content: start; }
.story { display: grid; gap: 14px; }
.story div { display: grid; grid-template-columns: 6.5rem minmax(0, 1fr); gap: 16px; }
.story dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 4px;
}
.story dd { color: var(--fg-2); font-size: 0.975rem; line-height: 1.6; }

.flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.flow li {
  display: inline-flex;
  align-items: center;
  color: var(--fg);
}
/* the connector belongs to the next step, so a wrapped line starts with "→ step" */
.flow li + li::before {
  content: "→";
  margin: 0 8px;
  color: var(--accent);
}

.case__results {
  grid-area: results;
  display: grid;
  gap: 20px;
  align-content: start;
  padding-left: 32px;
  border-left: 1px solid var(--line);
}
.results__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.metric { display: grid; gap: 8px; }
.metric__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--fg-2);
}
.metric__row small { display: block; color: var(--muted); font-size: 0.75rem; }
.metric__val {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.metric__val .before { text-decoration: line-through; text-decoration-color: var(--line-2); }
.metric__val b {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--accent);
}
.metric__bars { display: grid; gap: 3px; }
.metric__bars i {
  display: block;
  height: 4px;
  width: calc(var(--v) * 100%);
  min-width: 2px;
  border-radius: 2px;
  background: var(--line-2);
  transform-origin: left center;
}
.metric__bars i + i { background: var(--accent); }

.js .case .metric__bars i { transform: scaleX(0); transition: transform 900ms var(--ease-out); }
.js .case .metric__bars i + i { transition-delay: 220ms; }
.js .case.is-in .metric__bars i { transform: scaleX(1); }

.case > .tags { grid-area: tags; align-self: end; }

.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags li {
  padding: 4px 10px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-2);
}
.tags--lg { gap: 8px; }
.tags--lg li { padding: 7px 14px; font-size: 0.8rem; }

@media (max-width: 1100px) {
  .case {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    grid-template-areas:
      "head head"
      "body results"
      "tags tags";
  }
}
@media (max-width: 760px) {
  .case {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "head" "body" "results" "tags";
  }
  .case__results { padding: 20px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .story div { grid-template-columns: 1fr; gap: 4px; }
}

/* ───────────── Approach ───────────── */
.phases {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  counter-reset: phase;
  position: relative;
}
.phases::before {
  /* the "spine" running through every phase */
  content: "";
  position: absolute;
  top: 15px;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, var(--accent), var(--accent) 60%, rgba(61, 220, 151, 0.2));
}
.phase {
  position: relative;
  display: grid;
  grid-row: span 4;
  grid-template-rows: subgrid; /* align "Leaves behind" across columns */
  align-content: start;
  row-gap: 12px;
  padding: 0 24px 0 0;
}
.phase .phase__out { align-self: start; }
.phase__num {
  position: relative;
  display: inline-grid;
  place-items: center;
  justify-self: start;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--bg-alt);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  margin-bottom: 12px;
}
.phase:nth-child(4) .phase__num { background: var(--accent); color: var(--accent-ink); }
.phase__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.75rem;
  line-height: 1.1;
}
.phase p { color: var(--fg-2); font-size: 0.95rem; }
.phase .phase__out {
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-2);
  color: var(--fg);
  font-size: 0.9rem;
}
.phase__out span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}

@media (max-width: 1024px) {
  .phases { grid-template-columns: minmax(0, 1fr); gap: 36px; padding-left: 52px; }
  .phases::before {
    top: 0; bottom: 0;
    left: 15px; right: auto;
    width: 1px; height: auto;
    background: linear-gradient(to bottom, var(--accent), var(--accent) 70%, rgba(61, 220, 151, 0.2));
  }
  .phase { padding: 0; max-width: 36rem; grid-row: auto; grid-template-rows: none; }
  .phase__num { position: absolute; left: -52px; top: 0; margin: 0; }
  .phase__title { padding-top: 2px; }
}

/* ───────────── Capabilities ───────────── */
.caps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.cap {
  padding: 28px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.cap__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.6rem;
  margin-bottom: 18px;
}
.cap__title::before {
  content: "";
  width: 10px; height: 10px;
  border-radius: 3px;
  background: var(--kind);
}
.cap li {
  padding: 10px 0;
  border-top: 1px solid var(--line);
  color: var(--fg-2);
  font-size: 0.95rem;
}

.toolbelt { display: grid; gap: 16px; margin-top: 48px; }

@media (max-width: 1024px) {
  .caps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .caps { grid-template-columns: minmax(0, 1fr); }
}

/* ───────────── Contact ───────────── */
.contact {
  padding-block: var(--section-y);
  border-top: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.contact::before {
  content: "";
  position: absolute;
  left: 50%; bottom: -40%;
  width: 900px; height: 600px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(61, 220, 151, 0.08), transparent);
  pointer-events: none;
}
.contact__inner { position: relative; display: grid; gap: 24px; }
.contact__inner > * { max-width: 60rem; }
.contact__email {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: 16px;
}
.contact__mail {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.6rem);
  line-height: 1.2;
  border-bottom: 1px solid var(--line-2);
  overflow-wrap: anywhere;
  transition: color 180ms var(--ease-out), border-color 180ms var(--ease-out);
}
.contact__mail:hover { color: var(--accent); border-color: var(--accent); }
.socials { display: flex; flex-wrap: wrap; gap: 4px 28px; }

/* ───────────── Footer ───────────── */
.footer { border-top: 1px solid var(--line); }
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-block: 28px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.footer__eval { display: inline-flex; align-items: center; gap: 10px; }
.footer__eval .status__dot { width: 6px; height: 6px; box-shadow: 0 0 0 3px var(--accent-soft); }

/* ───────────── Reveal on scroll ───────────── */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}
.js .reveal.is-in { opacity: 1; transform: none; }

/* ───────────── Reduced motion ───────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0ms !important;
    transition-delay: 0ms !important;
    animation: none !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}