/* ==========================================================================
   Acme Space — design system
   Dark, technical, space-age. Hairline rules, mono telemetry, one bright accent.
   ========================================================================== */

/* ------------------------------------------------------------------ tokens */
:root {
  --void: #04060d;
  --deep: #070b15;
  --panel: #0b111f;
  --panel-2: #0f1626;

  --line: rgba(140, 190, 255, 0.13);
  --line-strong: rgba(140, 190, 255, 0.28);

  --ink: #e9efff;
  --dim: #97a3c2;
  --faint: #626e8c;

  --plasma: #5ee9e0;
  --plasma-dim: #2bb9b2;
  --ion: #8b7dff;
  --flare: #ffab5e;

  --glow: 0 0 0 1px rgba(94, 233, 224, 0.25), 0 0 34px -8px rgba(94, 233, 224, 0.55);

  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --shell: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 14px;
  --radius-sm: 8px;
}

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

* { margin: 0; }

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

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.97rem + 0.15vw, 1.075rem);
  line-height: 1.65;
  color: var(--ink);
  background-color: var(--void);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; }

ul, ol { padding: 0; list-style: none; }

button, input, textarea, select { font: inherit; color: inherit; }

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

/* --------------------------------------------------------- cosmic backdrop */
/* Three parallax star layers + two nebula blooms, all painted with gradients
   so the page carries its own sky without shipping a single image. */
.sky {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 60% at 15% -10%, rgba(139, 125, 255, 0.16), transparent 60%),
    radial-gradient(ellipse 70% 50% at 90% 8%, rgba(94, 233, 224, 0.11), transparent 62%),
    radial-gradient(ellipse 120% 70% at 50% 110%, rgba(64, 90, 180, 0.14), transparent 65%),
    linear-gradient(180deg, var(--void) 0%, var(--deep) 45%, var(--void) 100%);
}

.sky::before,
.sky::after {
  content: "";
  position: absolute;
  inset: -50%;
  background-repeat: repeat;
  background-size: 340px 340px;
}

.sky::before {
  background-image:
    radial-gradient(1.4px 1.4px at 40px 60px, rgba(255, 255, 255, 0.85), transparent),
    radial-gradient(1px 1px at 180px 120px, rgba(190, 220, 255, 0.65), transparent),
    radial-gradient(1.2px 1.2px at 260px 40px, rgba(255, 255, 255, 0.5), transparent),
    radial-gradient(1px 1px at 90px 260px, rgba(160, 200, 255, 0.6), transparent),
    radial-gradient(1.6px 1.6px at 300px 300px, rgba(255, 255, 255, 0.4), transparent);
  animation: drift 240s linear infinite;
}

.sky::after {
  background-size: 620px 620px;
  background-image:
    radial-gradient(2px 2px at 120px 200px, rgba(94, 233, 224, 0.5), transparent),
    radial-gradient(1.8px 1.8px at 520px 90px, rgba(139, 125, 255, 0.45), transparent),
    radial-gradient(2.2px 2.2px at 330px 470px, rgba(255, 255, 255, 0.35), transparent);
  animation: drift 420s linear infinite reverse;
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-340px, -340px, 0); }
}

/* Faint engineering grid, fades out down the page. */
.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    linear-gradient(to right, rgba(140, 190, 255, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(140, 190, 255, 0.05) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
          mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
}

/* ------------------------------------------------------------- typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.5rem, 1.6rem + 4.2vw, 5rem); }
h2 { font-size: clamp(1.85rem, 1.35rem + 2.1vw, 2.9rem); }
h3 { font-size: clamp(1.2rem, 1.05rem + 0.7vw, 1.5rem); }
h4 { font-size: 1.05rem; }

p { text-wrap: pretty; }

.lede {
  font-size: clamp(1.1rem, 1rem + 0.6vw, 1.35rem);
  line-height: 1.55;
  color: var(--dim);
  max-width: 62ch;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--plasma);
}

.kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--plasma));
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--faint);
}

.gradient-text {
  background: linear-gradient(120deg, #ffffff 8%, var(--plasma) 55%, var(--ion) 96%);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

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

.shell--narrow { max-width: 760px; }

.section {
  padding-block: clamp(4rem, 8vw, 7.5rem);
  position: relative;
}

.section--tight { padding-block: clamp(3rem, 5vw, 4.5rem); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem 2rem;
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.section-head p { color: var(--dim); max-width: 46ch; }

.rule {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--line-strong) 18%, var(--line-strong) 82%, transparent);
}

/* ------------------------------------------------------------------ header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(4, 6, 13, 0.55);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.site-header[data-scrolled="true"] {
  background: rgba(4, 6, 13, 0.86);
  border-bottom-color: var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}

.brand__mark { width: 30px; height: 30px; flex: none; }
.brand__mark circle,
.brand__mark path { transition: opacity 0.3s ease; }
.brand:hover .brand__mark { filter: drop-shadow(0 0 8px rgba(94, 233, 224, 0.6)); }

.brand__sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  color: var(--faint);
  text-transform: uppercase;
  display: block;
  margin-top: 2px;
}

.nav { display: flex; align-items: center; gap: 0.35rem; }

.nav a {
  position: relative;
  padding: 0.5rem 0.85rem;
  font-size: 0.92rem;
  color: var(--dim);
  border-radius: var(--radius-sm);
  transition: color 0.2s ease, background 0.2s ease;
}

.nav a:hover { color: var(--ink); background: rgba(140, 190, 255, 0.07); }

.nav a[aria-current="page"] { color: var(--ink); }

.nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  bottom: 0.15rem;
  height: 1px;
  background: var(--plasma);
  box-shadow: 0 0 10px var(--plasma);
}

/* The quote button lives inside the nav, so it must out-specify `.nav a`
   for both colour and hover — otherwise it renders as dim text on a bright
   gradient and loses the gradient entirely on hover. */
.nav a.btn {
  color: var(--ink);
  background: rgba(140, 190, 255, 0.04);
}

.nav a.btn--primary {
  color: var(--void);
  background: linear-gradient(105deg, var(--plasma), #7ef0d6 55%, var(--ion));
}

.nav a.btn:hover {
  color: var(--ink);
  border-color: var(--plasma);
  background: rgba(94, 233, 224, 0.09);
}

.nav a.btn--primary:hover {
  color: var(--void);
  background: linear-gradient(105deg, #7ef5ec, var(--plasma) 55%, #a094ff);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 17px;
  height: 1.5px;
  margin: 3.5px auto;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }

  .nav {
    position: fixed;
    inset: 74px 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem var(--gutter) 1.5rem;
    background: var(--deep);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
  }

  .nav[data-open="true"] { transform: translateY(0); opacity: 1; visibility: visible; }

  .nav a { padding: 0.85rem 0.25rem; font-size: 1.05rem; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav a[aria-current="page"]::after { display: none; }
  .nav .btn { margin-top: 1rem; justify-content: center; border-bottom: 0; }
}

/* ----------------------------------------------------------------- buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.8rem 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  background: rgba(140, 190, 255, 0.04);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  border-color: var(--plasma);
  background: rgba(94, 233, 224, 0.09);
  box-shadow: 0 10px 30px -14px rgba(94, 233, 224, 0.8);
}

.btn--primary {
  color: var(--void);
  background: linear-gradient(105deg, var(--plasma), #7ef0d6 55%, var(--ion));
  border-color: transparent;
  font-weight: 600;
}

.btn--primary:hover {
  background: linear-gradient(105deg, #7ef5ec, var(--plasma) 55%, #a094ff);
  box-shadow: 0 14px 40px -12px rgba(94, 233, 224, 0.65);
}

.btn--ghost { background: transparent; }

.btn__arrow { transition: transform 0.2s ease; }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ------------------------------------------------------------------- cards */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.6rem;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.3, 1), border-color 0.3s ease, box-shadow 0.3s ease;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(94, 233, 224, 0.1), transparent 55%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.9);
}

.card:hover::after { opacity: 1; }

.card h3 { margin-bottom: 0.5rem; }
.card p { color: var(--dim); font-size: 0.95rem; }

.card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: auto;
  padding-top: 1.25rem;
}

/* Grids ------------------------------------------------------------------- */
.grid { display: grid; gap: 1.25rem; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }

/* ------------------------------------------------------------------- badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--plasma);
  background: rgba(94, 233, 224, 0.09);
  border: 1px solid rgba(94, 233, 224, 0.25);
  border-radius: 100px;
  white-space: nowrap;
}

.badge--ion { color: var(--ion); background: rgba(139, 125, 255, 0.1); border-color: rgba(139, 125, 255, 0.28); }
.badge--flare { color: var(--flare); background: rgba(255, 171, 94, 0.1); border-color: rgba(255, 171, 94, 0.28); }
.badge--muted { color: var(--faint); background: rgba(140, 190, 255, 0.05); border-color: var(--line); }

.badge__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

/* -------------------------------------------------------------------- hero */
.hero {
  position: relative;
  padding-block: clamp(3.5rem, 9vw, 8rem) clamp(3rem, 6vw, 5rem);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

@media (max-width: 940px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__art { order: -1; max-width: 460px; }
}

.hero h1 { margin: 1.4rem 0 1.5rem; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.25rem;
}

.hero__art { position: relative; }

/* Slow orbital rotation on the hero schematic. */
.spin { animation: spin 60s linear infinite; transform-origin: 50% 50%; }
.spin--slow { animation-duration: 140s; }
.spin--reverse { animation-direction: reverse; }

@keyframes spin { to { transform: rotate(360deg); } }

.pulse { animation: pulse 3.5s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 1; } }

/* ----------------------------------------------------------------- ticker */
.ticker {
  border-block: 1px solid var(--line);
  background: rgba(7, 11, 21, 0.6);
  overflow: hidden;
}

.ticker__track {
  display: flex;
  gap: 3rem;
  padding-block: 0.85rem;
  width: max-content;
  animation: ticker 46s linear infinite;
}

.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  white-space: nowrap;
}

.ticker__item b { color: var(--dim); font-weight: 500; }

@keyframes ticker { to { transform: translateX(-50%); } }

.ticker:hover .ticker__track { animation-play-state: paused; }

/* ------------------------------------------------------------------ stats */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.stat {
  padding: 1.5rem 1.4rem;
  background: rgba(11, 17, 31, 0.86);
}

.stat__value {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 1.4rem + 1.5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
}

.stat__label {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

/* --------------------------------------------------------------- products */
.product-card { padding: 0; }

.product-card__art {
  position: relative;
  aspect-ratio: 16 / 10;
  background:
    radial-gradient(circle at 50% 120%, rgba(94, 233, 224, 0.14), transparent 60%),
    linear-gradient(160deg, #0c1322, #070b14);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.product-card__art svg { position: absolute; inset: 0; width: 100%; height: 100%; }

.product-card__body { display: flex; flex-direction: column; flex: 1; padding: 1.4rem 1.5rem 1.5rem; }

.product-card__sku {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--plasma-dim);
  margin-bottom: 0.6rem;
}

.product-card h3 { font-size: 1.18rem; }

.price {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--ink);
}

.price small { color: var(--faint); font-size: 0.7rem; letter-spacing: 0.1em; }

/* Filter chips ------------------------------------------------------------ */
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.chip {
  padding: 0.45rem 0.95rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
  background: rgba(140, 190, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chip:hover { color: var(--ink); border-color: var(--line-strong); }

.chip[aria-pressed="true"] {
  color: var(--void);
  background: var(--plasma);
  border-color: var(--plasma);
  font-weight: 600;
}

/* --------------------------------------------------------- product detail */
.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}

@media (max-width: 900px) { .product-hero { grid-template-columns: 1fr; } }

.product-hero__art {
  position: relative;
  aspect-ratio: 1 / 1;
  background:
    radial-gradient(circle at 50% 50%, rgba(94, 233, 224, 0.12), transparent 65%),
    linear-gradient(160deg, #0d1424, #06090f);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.product-hero__art svg { position: absolute; inset: 0; width: 100%; height: 100%; }

.spec-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }

.spec-table th,
.spec-table td { padding: 0.85rem 0.25rem; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }

.spec-table th {
  width: 42%;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}

.spec-table td { color: var(--ink); }

.feature-list { display: grid; gap: 0.85rem; }

.feature-list li {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  color: var(--dim);
  font-size: 0.96rem;
}

.feature-list li::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  margin-top: 0.6rem;
  border: 1px solid var(--plasma);
  transform: rotate(45deg);
  box-shadow: 0 0 8px rgba(94, 233, 224, 0.6);
}

/* ------------------------------------------------------------------- prose */
.prose { max-width: 68ch; }
.prose > * + * { margin-top: 1.35rem; }
.prose h2 { margin-top: 2.75rem; font-size: clamp(1.5rem, 1.25rem + 1vw, 2rem); }
.prose h3 { margin-top: 2.25rem; }
.prose p, .prose li { color: var(--dim); }
.prose strong { color: var(--ink); font-weight: 600; }

.prose a {
  color: var(--plasma);
  text-decoration: underline;
  text-decoration-color: rgba(94, 233, 224, 0.35);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s ease;
}

.prose a:hover { text-decoration-color: var(--plasma); }

.prose ul, .prose ol { display: grid; gap: 0.6rem; padding-left: 1.3rem; }
.prose ul li { list-style: none; position: relative; }
.prose ul li::before {
  content: "▸";
  position: absolute;
  left: -1.3rem;
  color: var(--plasma-dim);
}
.prose ol { list-style: decimal; }
.prose ol li::marker { color: var(--plasma-dim); font-family: var(--font-mono); font-size: 0.85rem; }

.prose blockquote {
  padding: 1.25rem 1.5rem;
  border-left: 2px solid var(--plasma);
  background: rgba(94, 233, 224, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 1.05rem;
  color: var(--ink);
}

.prose blockquote p { color: var(--ink); }

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  padding: 0.15em 0.4em;
  color: var(--plasma);
  background: rgba(94, 233, 224, 0.08);
  border: 1px solid rgba(94, 233, 224, 0.18);
  border-radius: 4px;
}

.prose pre {
  padding: 1.25rem;
  overflow-x: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.prose pre code { padding: 0; border: 0; background: none; color: var(--dim); }

.prose hr { margin-block: 2.5rem; height: 1px; border: 0; background: var(--line); }

.prose table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.prose th, .prose td { padding: 0.7rem 0.6rem; border-bottom: 1px solid var(--line); text-align: left; }
.prose th { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); }
.prose td { color: var(--dim); }

.prose img { border-radius: var(--radius-sm); border: 1px solid var(--line); }

/* -------------------------------------------------------------------- blog */
.post-list { display: grid; gap: 1px; background: var(--line); border-block: 1px solid var(--line); }

.post-row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.6rem 0.5rem;
  background: var(--void);
  transition: background 0.25s ease, padding 0.25s ease;
}

.post-row:hover { background: rgba(140, 190, 255, 0.045); padding-inline: 1rem 0.5rem; }
.post-row:hover h3 { color: var(--plasma); }
.post-row h3 { font-size: 1.22rem; transition: color 0.25s ease; }
.post-row p { margin-top: 0.4rem; color: var(--dim); font-size: 0.94rem; max-width: 62ch; }

@media (max-width: 780px) {
  .post-row { grid-template-columns: 1fr; gap: 0.55rem; }
  .post-row__aside { order: 3; }
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.post-meta__sep { width: 3px; height: 3px; border-radius: 50%; background: var(--faint); }

.post-header { padding-block: clamp(2.5rem, 6vw, 4.5rem) 2.5rem; }
.post-header h1 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.4rem); margin-block: 1.25rem; }

.author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding-block: 1.25rem;
}

.author__avatar {
  width: 42px;
  height: 42px;
  flex: none;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--void);
  background: linear-gradient(135deg, var(--plasma), var(--ion));
  border-radius: 50%;
}

.author__name { font-weight: 600; font-size: 0.95rem; }
.author__role { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; color: var(--faint); text-transform: uppercase; }

.tag-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* ------------------------------------------------------------------ panels */
.panel {
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.014));
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.panel--accent {
  background:
    radial-gradient(700px circle at 12% -20%, rgba(94, 233, 224, 0.14), transparent 55%),
    radial-gradient(600px circle at 88% 120%, rgba(139, 125, 255, 0.14), transparent 55%),
    linear-gradient(165deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.014));
}

.cta {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 3rem);
}

.cta h2 { margin-bottom: 1rem; }
.cta p { margin-inline: auto; }
.cta .hero__actions { justify-content: center; }

/* Timeline ---------------------------------------------------------------- */
.timeline { display: grid; gap: 0; position: relative; }

.timeline__item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 1.75rem;
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.timeline__item:last-child { border-bottom: 0; }

.timeline__year {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--plasma);
}

.timeline__item h3 { font-size: 1.1rem; margin-bottom: 0.35rem; }
.timeline__item p { color: var(--dim); font-size: 0.94rem; }

@media (max-width: 640px) {
  .timeline__item { grid-template-columns: 1fr; gap: 0.4rem; }
}

/* Forms ------------------------------------------------------------------- */
.field { display: grid; gap: 0.5rem; margin-bottom: 1.15rem; }

.field label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

.field input,
.field select,
.field textarea {
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  color: var(--ink);
  background: rgba(4, 6, 13, 0.6);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input::placeholder,
.field textarea::placeholder { color: #4a5570; }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--plasma);
  box-shadow: 0 0 0 3px rgba(94, 233, 224, 0.12);
}

.field textarea { resize: vertical; min-height: 130px; }

/* ------------------------------------------------------------------ footer */
.site-footer {
  margin-top: clamp(4rem, 8vw, 7rem);
  padding-top: clamp(3rem, 5vw, 4rem);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, rgba(94, 233, 224, 0.035));
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: 2.5rem 2rem;
  padding-bottom: 3rem;
}

@media (max-width: 860px) { .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 500px) { .footer__grid { grid-template-columns: 1fr; } }

.footer__title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 1.1rem;
}

.footer__links { display: grid; gap: 0.6rem; }
.footer__links a { font-size: 0.92rem; color: var(--dim); transition: color 0.2s ease, transform 0.2s ease; }
.footer__links a:hover { color: var(--plasma); }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.5rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--faint);
}

.footer__bottom a:hover { color: var(--plasma); }

/* Breadcrumbs ------------------------------------------------------------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  padding-top: 2rem;
}

.crumbs a:hover { color: var(--plasma); }
.crumbs span[aria-hidden] { opacity: 0.45; }

/* Sitemap page ------------------------------------------------------------ */
.sitemap-group { padding-block: 1.75rem; border-bottom: 1px solid var(--line); }
.sitemap-group:last-child { border-bottom: 0; }

.sitemap-group__grid {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 1.5rem 2rem;
}

@media (max-width: 700px) { .sitemap-group__grid { grid-template-columns: 1fr; } }

.sitemap-links { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0.5rem 1.5rem; }

.sitemap-links a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.35rem 0;
  font-size: 0.94rem;
  color: var(--dim);
  transition: color 0.2s ease;
}

.sitemap-links a::before {
  content: "/";
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--plasma-dim);
}

.sitemap-links a:hover { color: var(--ink); }

/* Utilities --------------------------------------------------------------- */
.stack { display: grid; gap: 1.25rem; }
.stack--sm { gap: 0.65rem; }
.stack--lg { gap: 2rem; }
.flow > * + * { margin-top: 1rem; }
.center { text-align: center; }
.dim { color: var(--dim); }
.faint { color: var(--faint); }
.hidden { display: none !important; }

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: var(--plasma);
  color: var(--void);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  transition: top 0.2s ease;
}

.skip-link:focus { top: 0; }

/* Scroll-reveal ----------------------------------------------------------- */
/* Hidden only when JS is present to reveal them again. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s cubic-bezier(0.2, 0.7, 0.3, 1), transform 0.7s cubic-bezier(0.2, 0.7, 0.3, 1);
}

.js [data-reveal].is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
}

/* Print ------------------------------------------------------------------- */
@media print {
  .sky, .grid-overlay, .site-header, .site-footer, .ticker { display: none; }
  body { background: #fff; color: #000; }
}