/* =============================================================================
   SpiderWeb — new design system (sw-*)
   Applied to: /, /projects, /projects/*, /lab, /build-log, /build-log/*,
               /about, /demos, 404
   Not applied to: /control/* (uses the older .ctrl-* + dark surface styles
   in styles.css, deliberately — that's the live operator surface)
   ============================================================================= */

/* --- Tokens --------------------------------------------------------------- */
:root {
  /* Surfaces — dark neutral */
  --sw-bg:           #0b0d10;
  --sw-bg-elev-1:   #11141a;
  --sw-bg-elev-2:   #161a21;
  --sw-bg-elev-3:   #1c2129;
  --sw-bg-hover:    #1e232c;

  /* Lines / borders — hairline */
  --sw-line:        #1f242d;
  --sw-line-strong: #2a3038;
  --sw-line-accent: #3a3f4b;

  /* Ink */
  --sw-ink:         #e7eaf0;
  --sw-ink-dim:     #8b94a3;
  --sw-ink-faint:   #52596a;
  --sw-ink-mute:    #393f4a;

  /* Accent — single restrained brand color */
  --sw-accent:      #6ee7b7;        /* mint — calm, technical, not neon */
  --sw-accent-dim:  rgba(110, 231, 183, 0.15);
  --sw-accent-ink:  #0b0d10;        /* on-accent text */

  /* Status tones */
  --sw-tone-amber:  #f59e0b;
  --sw-tone-amber-dim: rgba(245, 158, 11, 0.15);
  --sw-tone-green:  #10b981;
  --sw-tone-green-dim: rgba(16, 185, 129, 0.15);
  --sw-tone-red:    #ef4444;
  --sw-tone-red-dim: rgba(239, 68, 68, 0.15);
  --sw-tone-soft:   #8b94a3;
  --sw-tone-soft-dim: rgba(139, 148, 163, 0.15);
  --sw-tone-blue:   #60a5fa;

  /* Type */
  --sw-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --sw-mono: 'JetBrains Mono', 'SF Mono', ui-monospace, Menlo, Consolas, monospace;

  /* Spacing */
  --sw-1: 4px;
  --sw-2: 8px;
  --sw-3: 12px;
  --sw-4: 16px;
  --sw-5: 24px;
  --sw-6: 32px;
  --sw-7: 48px;
  --sw-8: 64px;
  --sw-9: 96px;

  /* Radii */
  --sw-r-sm: 4px;
  --sw-r-md: 6px;
  --sw-r-lg: 10px;
  --sw-r-xl: 16px;

  /* Container */
  --sw-container: 1180px;
  --sw-gutter: 24px;
}

/* --- Base ----------------------------------------------------------------- */
.sw-body {
  margin: 0;
  background: var(--sw-bg);
  color: var(--sw-ink);
  font-family: var(--sw-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.sw-body::before {
  /* very subtle grid overlay — sets the lab tone */
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center top;
}

.sw-main {
  flex: 1;
  position: relative;
  z-index: 1;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--sw-accent); }

h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0; }

code, pre {
  font-family: var(--sw-mono);
  font-size: 0.88em;
}
code {
  padding: 2px 6px;
  background: var(--sw-bg-elev-2);
  border: 1px solid var(--sw-line);
  border-radius: var(--sw-r-sm);
  color: var(--sw-ink);
}

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

/* --- Header -------------------------------------------------------------- */
.sw-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--sw-bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--sw-line);
}
.sw-header__inner {
  width: min(var(--sw-container), calc(100vw - 32px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}
.sw-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--sw-ink);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.sw-brand:hover { color: var(--sw-ink); }
.sw-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--sw-r-md);
  background: var(--sw-bg-elev-2);
  border: 1px solid var(--sw-line);
  color: var(--sw-accent);
}
.sw-brand__name { font-size: 0.95rem; }

.sw-nav {
  display: flex;
  gap: 2px;
  align-items: center;
}
.sw-nav__link {
  padding: 8px 12px;
  border-radius: var(--sw-r-md);
  color: var(--sw-ink-dim);
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 120ms, background 120ms;
}
.sw-nav__link:hover {
  color: var(--sw-ink);
  background: var(--sw-bg-elev-1);
}
.sw-nav__link.is-active {
  color: var(--sw-ink);
  background: var(--sw-bg-elev-2);
}

.sw-nav__toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--sw-line);
  border-radius: var(--sw-r-md);
  padding: 8px;
  cursor: pointer;
  flex-direction: column;
  gap: 3px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
}
.sw-nav__toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--sw-ink);
  border-radius: 1px;
}

/* --- Footer -------------------------------------------------------------- */
.sw-footer {
  border-top: 1px solid var(--sw-line);
  margin-top: var(--sw-9);
  padding: var(--sw-7) 0;
  background: var(--sw-bg-elev-1);
}
.sw-footer__inner {
  width: min(var(--sw-container), calc(100vw - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 2fr 1fr;
  gap: var(--sw-6);
  align-items: start;
}
.sw-footer__name { font-weight: 600; color: var(--sw-ink); }
.sw-footer__tag {
  color: var(--sw-ink-dim);
  font-size: 0.88rem;
  margin-top: 4px;
}
.sw-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}
.sw-footer__link {
  color: var(--sw-ink-dim);
  font-size: 0.88rem;
  transition: color 120ms;
}
.sw-footer__link:hover { color: var(--sw-accent); }
.sw-footer__copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.8rem;
  color: var(--sw-ink-faint);
  text-align: right;
}
.sw-footer__copy-dim { color: var(--sw-ink-mute); }

/* --- Containers ---------------------------------------------------------- */
.sw-container {
  width: min(var(--sw-container), calc(100vw - 32px));
  margin: 0 auto;
}
.sw-container--narrow {
  width: min(760px, calc(100vw - 32px));
  margin: 0 auto;
}

.sw-section {
  padding: var(--sw-7) 0;
}
.sw-section--xl { padding: var(--sw-8) 0; }
.sw-section + .sw-section { border-top: 1px solid var(--sw-line); }

/* --- Typography blocks --------------------------------------------------- */
.sw-eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sw-accent);
  margin-bottom: 16px;
}
.sw-eyebrow--dim { color: var(--sw-ink-dim); }
.sw-eyebrow + h1 { margin-top: 4px; }

.sw-display {
  font-size: clamp(2.4rem, 5.4vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  font-weight: 700;
  color: var(--sw-ink);
  margin: 0;
}
.sw-display em {
  font-style: normal;
  color: var(--sw-accent);
}
.sw-h1 {
  font-size: clamp(2rem, 3.5vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 600;
}
.sw-h2 {
  font-size: 1.5rem;
  letter-spacing: -0.015em;
  font-weight: 600;
  margin-bottom: var(--sw-4);
}
.sw-lead {
  font-size: 1.125rem;
  line-height: 1.55;
  color: var(--sw-ink-dim);
  max-width: 60ch;
}
.sw-text-dim { color: var(--sw-ink-dim); }
.sw-text-mono { font-family: var(--sw-mono); }

/* --- Hero (homepage) ----------------------------------------------------- */
.sw-hero {
  position: relative;
  padding: var(--sw-8) 0 var(--sw-7);
  overflow: hidden;
}
.sw-hero__inner {
  width: min(var(--sw-container), calc(100vw - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--sw-7);
  align-items: center;
}
.sw-hero__copy { max-width: 30ch; }
.sw-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--sw-ink-dim);
  margin-bottom: 24px;
  font-family: var(--sw-mono);
}
.sw-hero__kicker::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--sw-accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--sw-accent);
}
.sw-hero__title {
  font-size: clamp(2.4rem, 5.6vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 700;
  margin: 0;
}
.sw-hero__title span {
  display: block;
  color: var(--sw-ink-dim);
  font-weight: 600;
}
.sw-hero__sub {
  margin-top: 20px;
  font-size: 1.1rem;
  line-height: 1.55;
  color: var(--sw-ink-dim);
  max-width: 50ch;
}
.sw-hero__cta {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.sw-hero__meta {
  margin-top: 40px;
  display: flex;
  gap: 24px;
  font-size: 0.82rem;
  color: var(--sw-ink-faint);
  font-family: var(--sw-mono);
  flex-wrap: wrap;
}
.sw-hero__meta span { display: inline-flex; align-items: center; gap: 6px; }
.sw-hero__meta span::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--sw-ink-faint);
  border-radius: 50%;
}

/* --- Buttons ------------------------------------------------------------- */
.sw-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid var(--sw-line-strong);
  border-radius: var(--sw-r-md);
  background: var(--sw-bg-elev-1);
  color: var(--sw-ink);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: background 120ms, border-color 120ms, color 120ms;
}
.sw-btn:hover {
  background: var(--sw-bg-elev-2);
  border-color: var(--sw-line-accent);
  color: var(--sw-ink);
}
.sw-btn--primary {
  background: var(--sw-accent);
  border-color: var(--sw-accent);
  color: var(--sw-accent-ink);
}
.sw-btn--primary:hover {
  background: color-mix(in srgb, var(--sw-accent) 85%, white);
  color: var(--sw-accent-ink);
}
.sw-btn--ghost {
  background: transparent;
  border-color: var(--sw-line);
}

.sw-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--sw-accent);
  font-size: 0.9rem;
  font-weight: 500;
}
.sw-link-arrow span { transition: transform 160ms; }
.sw-link-arrow:hover { color: var(--sw-accent); }
.sw-link-arrow:hover span { transform: translateX(3px); }

/* --- Badges & chips ------------------------------------------------------ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: var(--sw-r-pill, 999px);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--sw-mono);
  border: 1px solid transparent;
}
.tone-amber {
  color: var(--sw-tone-amber);
  background: var(--sw-tone-amber-dim);
  border-color: color-mix(in srgb, var(--sw-tone-amber) 30%, transparent);
}
.tone-green {
  color: var(--sw-tone-green);
  background: var(--sw-tone-green-dim);
  border-color: color-mix(in srgb, var(--sw-tone-green) 30%, transparent);
}
.tone-red {
  color: var(--sw-tone-red);
  background: var(--sw-tone-red-dim);
  border-color: color-mix(in srgb, var(--sw-tone-red) 30%, transparent);
}
.tone-soft {
  color: var(--sw-tone-soft);
  background: var(--sw-tone-soft-dim);
  border-color: color-mix(in srgb, var(--sw-tone-soft) 30%, transparent);
}
.tone-dim {
  color: var(--sw-ink-dim);
  background: var(--sw-bg-elev-1);
  border-color: var(--sw-line);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--sw-r-pill, 999px);
  background: var(--sw-bg-elev-2);
  border: 1px solid var(--sw-line);
  color: var(--sw-ink-dim);
  font-size: 0.75rem;
  font-family: var(--sw-mono);
}
.chip--tech {
  background: var(--sw-bg-elev-1);
  color: var(--sw-ink);
  border-color: var(--sw-line);
}

/* --- SpiderWeb network graphic (homepage) -------------------------------- */
.sw-network {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 480px;
  margin: 0 auto;
}
.sw-network svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}
.sw-network__center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
}
.sw-network__center .label {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sw-ink-faint);
  font-family: var(--sw-mono);
}
.sw-network__center .value {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--sw-ink);
  margin-top: 4px;
}

/* --- Card grid ----------------------------------------------------------- */
.sw-grid {
  display: grid;
  gap: 20px;
  margin-top: var(--sw-5);
}
.sw-grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.sw-grid--3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.sw-grid--4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.sw-card {
  background: var(--sw-bg-elev-1);
  border: 1px solid var(--sw-line);
  border-radius: var(--sw-r-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 160ms, transform 160ms, background 160ms;
}
.sw-card:hover {
  border-color: var(--sw-line-strong);
  background: var(--sw-bg-elev-2);
}

.sw-project-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}
.sw-project-card__title {
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  font-weight: 600;
  margin: 0;
}
.sw-project-card__title a { color: var(--sw-ink); }
.sw-project-card__title a:hover { color: var(--sw-accent); }
.sw-project-card__summary {
  color: var(--sw-ink-dim);
  line-height: 1.55;
  font-size: 0.95rem;
  flex: 1;
}
.sw-project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.sw-project-card.is-teaser { border-style: dashed; }
.sw-project-card .sw-link-arrow { margin-top: auto; padding-top: 8px; }

.sw-log-card__meta {
  font-size: 0.78rem;
  color: var(--sw-ink-faint);
  font-family: var(--sw-mono);
  letter-spacing: 0.04em;
}
.sw-log-card__title {
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  font-weight: 600;
  margin: 4px 0 0;
}
.sw-log-card__title a { color: var(--sw-ink); }
.sw-log-card__title a:hover { color: var(--sw-accent); }
.sw-log-card__summary {
  color: var(--sw-ink-dim);
  line-height: 1.55;
  font-size: 0.92rem;
}

/* --- Tech grid (Lab page) ------------------------------------------------ */
.sw-tech-grid {
  display: grid;
  gap: 12px;
  margin-top: var(--sw-5);
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}
.sw-tech-tile {
  background: var(--sw-bg-elev-1);
  border: 1px solid var(--sw-line);
  border-radius: var(--sw-r-md);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--sw-mono);
  font-size: 0.9rem;
  color: var(--sw-ink);
  transition: border-color 160ms, background 160ms;
}
.sw-tech-tile:hover {
  border-color: var(--sw-line-strong);
  background: var(--sw-bg-elev-2);
}
.sw-tech-tile small {
  font-size: 0.7rem;
  color: var(--sw-ink-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--sw-mono);
}

/* --- Project page -------------------------------------------------------- */
.sw-project-page {
  padding: var(--sw-7) 0 var(--sw-8);
}
.sw-project-page__head {
  margin-bottom: var(--sw-6);
}
.sw-project-page__meta {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.sw-project-page__title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 700;
  margin: 8px 0 12px;
}
.sw-project-page__lede {
  font-size: 1.15rem;
  color: var(--sw-ink-dim);
  max-width: 65ch;
  line-height: 1.55;
}
.sw-project-page__body {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--sw-7);
  margin-top: var(--sw-6);
}
.sw-project-page__content h2 {
  font-size: 1.25rem;
  margin: var(--sw-6) 0 var(--sw-3);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.sw-project-page__content h2:first-child { margin-top: 0; }
.sw-project-page__content p {
  color: var(--sw-ink-dim);
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 68ch;
}
.sw-project-page__content ul {
  padding-left: 20px;
  color: var(--sw-ink-dim);
  line-height: 1.7;
}
.sw-project-page__content ul li { margin-bottom: 6px; }
.sw-project-page__sidebar {
  position: sticky;
  top: 88px;
  align-self: start;
  background: var(--sw-bg-elev-1);
  border: 1px solid var(--sw-line);
  border-radius: var(--sw-r-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.sw-project-page__sidebar h3 {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sw-ink-faint);
  font-family: var(--sw-mono);
  margin: 0 0 8px;
}
.sw-project-page__sidebar .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.sw-project-page__sidebar .fact {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: 12px;
  border-top: 1px solid var(--sw-line);
}
.sw-project-page__sidebar .fact-label {
  font-size: 0.7rem;
  color: var(--sw-ink-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--sw-mono);
}
.sw-project-page__sidebar .fact-value {
  font-size: 0.95rem;
  color: var(--sw-ink);
}

.sw-callout {
  border-left: 2px solid var(--sw-accent);
  background: var(--sw-accent-dim);
  padding: 12px 16px;
  border-radius: 0 var(--sw-r-md) var(--sw-r-md) 0;
  color: var(--sw-ink);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 20px 0;
}
.sw-callout strong { color: var(--sw-accent); font-weight: 600; }

/* --- Build log page ------------------------------------------------------ */
.sw-log-page {
  padding: var(--sw-7) 0 var(--sw-8);
}
.sw-log-page__head { margin-bottom: var(--sw-6); }
.sw-log-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--sw-line);
}
.sw-log-list__item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: var(--sw-5);
  padding: 24px 0;
  border-bottom: 1px solid var(--sw-line);
  align-items: start;
}
.sw-log-list__date {
  font-family: var(--sw-mono);
  font-size: 0.82rem;
  color: var(--sw-ink-faint);
  padding-top: 4px;
}
.sw-log-list__title {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.sw-log-list__title a { color: var(--sw-ink); }
.sw-log-list__title a:hover { color: var(--sw-accent); }
.sw-log-list__summary {
  color: var(--sw-ink-dim);
  line-height: 1.6;
}

/* --- Build log post page ------------------------------------------------- */
.sw-log-post {
  padding: var(--sw-7) 0 var(--sw-8);
}
.sw-log-post__head {
  margin-bottom: var(--sw-5);
  padding-bottom: var(--sw-5);
  border-bottom: 1px solid var(--sw-line);
}
.sw-log-post__title {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 8px 0 12px;
}
.sw-log-post__body {
  max-width: 68ch;
  color: var(--sw-ink-dim);
  line-height: 1.75;
}
.sw-log-post__body h2 {
  font-size: 1.3rem;
  margin: var(--sw-6) 0 var(--sw-3);
  color: var(--sw-ink);
  letter-spacing: -0.01em;
}
.sw-log-post__body h3 {
  font-size: 1.05rem;
  margin: var(--sw-5) 0 var(--sw-2);
  color: var(--sw-ink);
}
.sw-log-post__body p { margin-bottom: 16px; }
.sw-log-post__body ul, .sw-log-post__body ol {
  padding-left: 20px;
  margin-bottom: 16px;
}
.sw-log-post__body li { margin-bottom: 6px; }
.sw-log-post__body blockquote {
  border-left: 2px solid var(--sw-accent);
  padding-left: 16px;
  margin: 16px 0;
  color: var(--sw-ink);
}
.sw-log-post__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--sw-ink-dim);
  font-size: 0.88rem;
  margin-bottom: 16px;
}
.sw-log-post__back:hover { color: var(--sw-accent); }

/* --- About page ---------------------------------------------------------- */
.sw-about {
  padding: var(--sw-8) 0;
}
.sw-about__inner {
  width: min(820px, calc(100vw - 32px));
  margin: 0 auto;
}
.sw-about__lede {
  font-size: clamp(1.4rem, 2.4vw, 1.75rem);
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--sw-ink);
  font-weight: 500;
  margin: var(--sw-5) 0 var(--sw-6);
}
.sw-about__body p {
  color: var(--sw-ink-dim);
  line-height: 1.75;
  margin-bottom: 18px;
  font-size: 1.02rem;
}

/* --- Demos page ---------------------------------------------------------- */
.sw-demos-grid {
  display: grid;
  gap: 20px;
  margin-top: var(--sw-5);
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}
.sw-demo-card {
  background: var(--sw-bg-elev-1);
  border: 1px solid var(--sw-line);
  border-radius: var(--sw-r-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}
.sw-demo-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}
.sw-demo-card__name { font-size: 1.15rem; font-weight: 600; letter-spacing: -0.01em; }
.sw-demo-card__desc { color: var(--sw-ink-dim); line-height: 1.55; font-size: 0.95rem; flex: 1; }
.sw-demo-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--sw-line);
}
.sw-demo-card__url { color: var(--sw-ink-faint); font-family: var(--sw-mono); font-size: 0.78rem; }

.sw-pulse {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-family: var(--sw-mono);
  color: var(--sw-ink-dim);
}
.sw-pulse__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sw-ink-faint);
  position: relative;
}
.sw-pulse__dot--live {
  background: var(--sw-tone-green);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--sw-tone-green) 50%, transparent);
  animation: sw-pulse-ring 2.4s infinite;
}
.sw-pulse__dot--exp {
  background: var(--sw-tone-amber);
}
.sw-pulse__dot--down {
  background: var(--sw-tone-red);
}
@keyframes sw-pulse-ring {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--sw-tone-green) 50%, transparent); }
  70%  { box-shadow: 0 0 0 6px color-mix(in srgb, var(--sw-tone-green) 0%, transparent); }
  100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--sw-tone-green) 0%, transparent); }
}

/* --- 404 ----------------------------------------------------------------- */
.sw-404 {
  padding: var(--sw-9) 0;
  text-align: center;
}
.sw-404__code {
  font-family: var(--sw-mono);
  font-size: 4rem;
  color: var(--sw-accent);
  letter-spacing: -0.04em;
  font-weight: 600;
}

/* --- Mobile nav ---------------------------------------------------------- */
@media (max-width: 820px) {
  .sw-nav { display: none; }
  .sw-nav.is-open {
    display: flex;
    position: absolute;
    top: 64px;
    right: 16px;
    flex-direction: column;
    background: var(--sw-bg-elev-2);
    border: 1px solid var(--sw-line-strong);
    border-radius: var(--sw-r-md);
    padding: 8px;
    min-width: 200px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
  }
  .sw-nav.is-open .sw-nav__link { width: 100%; }
  .sw-nav__toggle { display: inline-flex; }
  .sw-header__inner { position: relative; }
}

@media (max-width: 720px) {
  .sw-hero { padding: var(--sw-6) 0; }
  .sw-hero__inner { grid-template-columns: 1fr; gap: var(--sw-5); }
  .sw-hero__title { font-size: 2.4rem; }
  .sw-project-page__body { grid-template-columns: 1fr; gap: var(--sw-5); }
  .sw-project-page__sidebar { position: static; }
  .sw-log-list__item { grid-template-columns: 1fr; gap: var(--sw-2); }
  .sw-log-list__date { padding-top: 0; }
  .sw-footer__inner { grid-template-columns: 1fr; gap: var(--sw-4); text-align: left; }
  .sw-footer__copy { text-align: left; flex-direction: row; gap: 8px; }
  .sw-section { padding: var(--sw-6) 0; }
}

@media (max-width: 480px) {
  .sw-hero__title { font-size: 2rem; }
  .sw-display { font-size: 2.4rem; }
  .sw-card { padding: 18px; }
}

/* --- Operator page (live /control) --------------------------------------
   The /control page keeps its own dark surface and inline component styles
   (defined in styles.css). The new global header/footer still apply, but
   we suppress the sw-body grid backdrop and adjust the header so the dark
   control surface flows under it cleanly. The control surface itself uses
   its own background, so the grid overlay sits on top of the operator page
   behind it. */
.sw-body.is-operator::before {
  opacity: 0.4;
}
.sw-body.is-operator {
  background: var(--sw-bg);
}
.sw-body.is-operator .sw-main {
  padding-top: 0;
}
.sw-body.is-operator .control-page {
  background: var(--qc-bg, #0b0d10);
}

/* --- Print --------------------------------------------------------------- */
@media print {
  .sw-header, .sw-footer, .sw-nav__toggle { display: none; }
  .sw-body { background: white; color: black; }
  .sw-body::before { display: none; }
}