/* ============================================================
   sysctl — FreeBSD SoC bring-up
   Terminal-dark design system. Light theme included.
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  --bg:            #08090c;
  --bg-elev:       #0d0f15;
  --surface:       #11141b;
  --surface-2:     #151922;
  --border:        rgba(255,255,255,.08);
  --border-strong: rgba(255,255,255,.16);
  --text:          #e9ebf1;
  --text-dim:      #98a1b2;
  --text-faint:    #646d7e;
  --accent:        #ff5f3d;
  --accent-soft:   rgba(255,95,61,.14);
  --accent-line:   rgba(255,95,61,.42);
  --ok:            #4ade80;
  --info:          #56b8f5;
  --warn:          #fbbf24;
  --grid-line:     rgba(255,255,255,.028);
  --glow:          rgba(255,95,61,.18);
  --glow-2:        rgba(86,184,245,.10);
  --shadow:        0 1px 2px rgba(0,0,0,.4), 0 12px 32px -12px rgba(0,0,0,.65);
  --shadow-lg:     0 2px 4px rgba(0,0,0,.4), 0 28px 60px -24px rgba(0,0,0,.8);

  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 24px;

  --pad: clamp(20px, 5vw, 32px);
  --maxw: 1200px;
  --nav-h: 64px;

  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg:            #fbfbfd;
  --bg-elev:       #ffffff;
  --surface:       #ffffff;
  --surface-2:     #f4f5f8;
  --border:        rgba(12,15,22,.10);
  --border-strong: rgba(12,15,22,.20);
  --text:          #0e1118;
  --text-dim:      #4d5665;
  --text-faint:    #7b8494;
  --accent:        #dd4520;
  --accent-soft:   rgba(221,69,32,.10);
  --accent-line:   rgba(221,69,32,.40);
  --ok:            #12a150;
  --info:          #1a7fc4;
  --grid-line:     rgba(12,15,22,.035);
  --glow:          rgba(221,69,32,.10);
  --glow-2:        rgba(26,127,196,.07);
  --shadow:        0 1px 2px rgba(16,20,30,.05), 0 10px 26px -14px rgba(16,20,30,.22);
  --shadow-lg:     0 2px 6px rgba(16,20,30,.06), 0 26px 56px -26px rgba(16,20,30,.30);

  color-scheme: light;
}

/* ---------- 2. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 24px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color .3s ease, color .3s ease;
}

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.14;
  letter-spacing: -.024em;
  font-weight: 700;
  text-wrap: balance;
}

p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; list-style: none; }

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

code, pre { font-family: var(--mono); font-size: .875em; }

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

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 999;
  padding: 10px 18px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--r-sm);
  font-weight: 600;
}
.skip-link:focus { left: 12px; }

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

/* ---------- 3. Background ---------- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 78%);
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(760px 420px at 18% -8%,  var(--glow),   transparent 68%),
    radial-gradient(680px 400px at 88% 4%,   var(--glow-2), transparent 66%);
}

/* ---------- 4. Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background-color .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.nav.is-stuck {
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -.02em;
  flex: none;
}
.brand__mark { color: var(--accent); display: grid; place-items: center; }
.brand__caret {
  width: 8px;
  height: 15px;
  background: var(--accent);
  border-radius: 1px;
  animation: blink 1.15s steps(2, start) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav__links a {
  position: relative;
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-dim);
  transition: color .18s ease, background-color .18s ease;
}
.nav__links a:hover { color: var(--text); background: var(--surface); }
.nav__links a.is-active { color: var(--text); }
.nav__links a.is-active::after {
  content: "";
  position: absolute;
  left: 13px; right: 13px; bottom: 1px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}

.nav__actions { display: flex; align-items: center; gap: 8px; }

.icon-btn {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-dim);
  background: var(--surface);
  transition: color .18s ease, border-color .18s ease, transform .18s ease;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); transform: translateY(-1px); }

.icon-sun  { display: none; }
:root[data-theme="light"] .icon-sun  { display: block; }
:root[data-theme="light"] .icon-moon { display: none; }

.nav__burger { display: none; }
.burger { display: grid; gap: 4px; }
.burger i {
  display: block;
  width: 16px; height: 1.8px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .22s ease, opacity .22s ease;
}
.nav__burger[aria-expanded="true"] .burger i:nth-child(1) { transform: translateY(5.8px) rotate(45deg); }
.nav__burger[aria-expanded="true"] .burger i:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] .burger i:nth-child(3) { transform: translateY(-5.8px) rotate(-45deg); }

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 19px;
  border-radius: 11px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -.01em;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: transform .18s cubic-bezier(.2,.7,.3,1), box-shadow .18s ease,
              background-color .18s ease, border-color .18s ease, color .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 0 rgba(255,255,255,.16) inset, 0 10px 24px -10px var(--accent);
}
.btn--primary:hover { box-shadow: 0 1px 0 rgba(255,255,255,.2) inset, 0 16px 34px -12px var(--accent); }

.btn--ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--border-strong); background: var(--surface-2); }

/* ---------- 6. Hero ---------- */
.hero { padding: clamp(56px, 9vw, 104px) 0 clamp(40px, 6vw, 72px); }

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(32px, 5vw, 60px);
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 14px 6px 11px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-dim);
  letter-spacing: .01em;
}
.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 22%, transparent);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: .45; transform: scale(.86); } }

.hero__title {
  font-size: clamp(2.15rem, 4.4vw, 3.45rem);
  font-weight: 800;
  letter-spacing: -.038em;
  margin-bottom: 22px;
}
.grad {
  background: linear-gradient(100deg, var(--accent) 8%, #ff9d5c 55%, var(--accent) 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lede {
  font-size: clamp(1.02rem, 1.6vw, 1.16rem);
  color: var(--text-dim);
  max-width: 54ch;
  margin-bottom: 32px;
}

.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }

.hero__chips { display: flex; flex-wrap: wrap; gap: 7px; }
.hero__chips li {
  padding: 4px 11px;
  border: 1px dashed var(--border-strong);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-faint);
}

/* ---------- 7. Terminal ---------- */
.term {
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--bg-elev);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.term__bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.term__dots { display: flex; gap: 6px; }
.term__dots i {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border-strong);
}
.term__dots i:nth-child(1) { background: #ff5f57; }
.term__dots i:nth-child(2) { background: #febc2e; }
.term__dots i:nth-child(3) { background: #28c840; }

.term__title {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
  margin-inline: auto;
}
.term__badge {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 2px 8px;
  border-radius: 999px;
  color: var(--ok);
  background: color-mix(in srgb, var(--ok) 14%, transparent);
}

.term__copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  transition: color .18s ease, border-color .18s ease;
}
.term__copy:hover { color: var(--text); border-color: var(--border-strong); }
.term__copy.is-done { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, transparent); }

.term__body {
  margin: 0;
  padding: 18px 18px 22px;
  min-height: 336px;
  font-family: var(--mono);
  font-size: 12.4px;
  line-height: 1.72;
  color: var(--text-dim);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}
.term__body--static { min-height: 0; padding-bottom: 18px; }
.term--sm .term__body { min-height: 0; font-size: 12px; }

.term__body .c-dim { color: var(--text-faint); }
.term__body .c-acc { color: var(--accent); }
.term__body .c-ok  { color: var(--ok); }
.term__body .c-inf { color: var(--info); }
.term__body .c-hi  { color: var(--text); }

.term__cursor {
  display: inline-block;
  width: 7px;
  height: 1em;
  vertical-align: text-bottom;
  background: var(--accent);
  animation: blink 1.1s steps(2, start) infinite;
}

/* A console is dark in both themes — re-scope the tokens inside .term. */
:root[data-theme="light"] .term {
  --bg-elev:       #0d0f15;
  --surface:       #171a22;
  --surface-2:     #1c2029;
  --border:        rgba(255,255,255,.10);
  --border-strong: rgba(255,255,255,.16);
  --text:          #e9ebf1;
  --text-dim:      #98a1b2;
  --text-faint:    #79839a;
  --accent:        #ff7a55;
  --ok:            #4ade80;
  --info:          #56b8f5;
  color-scheme: dark;
}

/* ---------- 8. Stats ---------- */
.stats { padding: clamp(24px, 4vw, 40px) 0; }
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.stat {
  background: var(--bg);
  padding: 26px 22px;
  text-align: center;
}
.stat__num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.stat__label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--text-faint);
  letter-spacing: .01em;
}

/* ---------- 9. Sections ---------- */
.section { padding: clamp(64px, 9vw, 112px) 0; }
.section--alt { background: color-mix(in srgb, var(--surface) 46%, transparent); border-block: 1px solid var(--border); }

.section__head { max-width: 62ch; margin-bottom: clamp(32px, 5vw, 52px); }

.section__kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.section__title {
  font-size: clamp(1.75rem, 3.6vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -.032em;
  margin-bottom: 14px;
}
.section__lede { color: var(--text-dim); font-size: clamp(1rem, 1.4vw, 1.08rem); }
.section__lede em { color: var(--text); font-style: normal; }

/* ---------- 10. Project cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--surface);
  overflow: hidden;
  transition: transform .28s cubic-bezier(.2,.7,.3,1), border-color .28s ease, box-shadow .28s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .3s ease;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), var(--accent-soft), transparent 62%);
  pointer-events: none;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent-line); box-shadow: var(--shadow-lg); }
.card:hover::before { opacity: 1; }

.card--feature { grid-column: 1 / -1; }
.card--feature .card__title { font-size: clamp(1.5rem, 2.6vw, 1.85rem); }
.card--feature .card__desc { max-width: 62ch; font-size: 15.4px; }

.card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }

.card__icon {
  width: 42px; height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--bg-elev);
  color: var(--accent);
}

.card__title { font-size: 1.3rem; margin-bottom: 10px; }

.card__desc { color: var(--text-dim); font-size: 14.8px; margin-bottom: 18px; }
.card__desc em { color: var(--text); font-style: italic; }
.card__desc code {
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
}

.card__meta {
  display: grid;
  gap: 6px;
  padding: 13px 0;
  margin-bottom: 16px;
  border-block: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11.8px;
}
.card__meta li { display: flex; gap: 10px; }
.card__meta .k { color: var(--text-faint); min-width: 66px; }
.card__meta .v { color: var(--text-dim); word-break: break-word; }

.card__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }

.tag {
  padding: 3px 9px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-elev);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
}
.tag--accent {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
  text-transform: uppercase;
  letter-spacing: .07em;
}

.card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: auto;
}

.card__stats {
  display: flex;
  gap: 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-faint);
}
.card__stats b { color: var(--text-dim); font-weight: 500; }

.card__links { display: flex; gap: 14px; margin-left: auto; }

.lnk {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-dim);
  transition: color .18s ease, gap .18s ease;
}
.lnk:hover { color: var(--text); }
.lnk--go { color: var(--accent); }
.lnk--go:hover { color: var(--accent); gap: 8px; }

/* ---------- 11. Filters ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 22px; }
.chip {
  padding: 7px 15px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-dim);
  transition: color .18s ease, border-color .18s ease, background-color .18s ease;
}
.chip:hover { color: var(--text); border-color: var(--border-strong); }
.chip.is-active {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

/* ---------- 12. Boards ---------- */
.boards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 14px;
}

.board {
  display: flex;
  flex-direction: column;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg);
  transition: transform .24s cubic-bezier(.2,.7,.3,1), border-color .24s ease, box-shadow .24s ease;
}
.board:hover { transform: translateY(-3px); border-color: var(--accent-line); box-shadow: var(--shadow); }
.board.is-hidden { display: none; }

.board__head { display: flex; align-items: start; justify-content: space-between; gap: 12px; margin-bottom: 6px; }
.board__name { font-size: 1.06rem; letter-spacing: -.02em; }

.status {
  flex: none;
  padding: 3px 9px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .04em;
  white-space: nowrap;
}
.status--work  { color: var(--warn); background: color-mix(in srgb, var(--warn) 14%, transparent); }
.status--arena { color: var(--info); background: color-mix(in srgb, var(--info) 14%, transparent); }
.status--ok    { color: var(--ok);   background: color-mix(in srgb, var(--ok) 14%, transparent); }

.board__soc {
  font-family: var(--mono);
  font-size: 11.8px;
  color: var(--accent);
  margin-bottom: 10px;
}
.board__desc { font-size: 13.6px; color: var(--text-dim); margin-bottom: 16px; }

.board__foot {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.board__branch {
  font-size: 10.6px;
  color: var(--text-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.board__when {
  flex: none;
  font-family: var(--mono);
  font-size: 10.6px;
  color: var(--text-faint);
}

.boards__note {
  margin-top: 22px;
  font-size: 14px;
  color: var(--text-faint);
}
.boards__note a { color: var(--accent); font-weight: 600; border-bottom: 1px solid var(--accent-line); }

/* ---------- 13. Rules ---------- */
.rules {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.rule {
  position: relative;
  padding: 28px 24px;
  background: var(--bg);
  transition: background-color .24s ease;
}
.rule:hover { background: var(--surface); }
.rule__n {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: .06em;
}
.rule h3 { font-size: 1.06rem; margin-bottom: 8px; }
.rule p { font-size: 14px; color: var(--text-dim); }

/* ---------- 14. Collaborate ---------- */
.collab {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.collab__steps { display: grid; gap: 16px; margin: 30px 0; }
.collab__steps li { display: flex; gap: 14px; align-items: start; }
.collab__i {
  flex: none;
  width: 28px; height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--accent-line);
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 700;
}
.collab__steps strong { font-size: 15px; font-weight: 650; }
.collab__steps p { font-size: 13.8px; color: var(--text-dim); }

.collab__cta { display: flex; flex-wrap: wrap; gap: 12px; }

.collab__box { display: grid; gap: 16px; }

.collab__facts {
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
}
.collab__facts > div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 16px;
  background: var(--bg);
  font-family: var(--mono);
  font-size: 12px;
}
.collab__facts .k { color: var(--text-faint); }
.collab__facts .v { color: var(--text-dim); text-align: right; }

/* ---------- 15. Footer ---------- */
.footer { border-top: 1px solid var(--border); padding-top: clamp(40px, 6vw, 64px); }
.footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 32px;
  padding-bottom: 40px;
}
.footer__brand .brand__text { font-family: var(--mono); font-weight: 700; font-size: 17px; }
.footer__brand p { margin-top: 10px; color: var(--text-faint); font-size: 14px; max-width: 40ch; }

.footer__links { display: flex; gap: 48px; flex-wrap: wrap; }
.footer__links h3 {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-faint);
  margin-bottom: 12px;
  font-weight: 500;
}
.footer__links a {
  display: block;
  font-size: 14px;
  color: var(--text-dim);
  padding: 3px 0;
  transition: color .18s ease;
}
.footer__links a:hover { color: var(--accent); }

.footer__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-block: 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-faint);
}
.footer__top { transition: color .18s ease; }
.footer__top:hover { color: var(--accent); }

/* ---------- 16. Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .6s cubic-bezier(.2,.7,.3,1), transform .6s cubic-bezier(.2,.7,.3,1);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- 17. Responsive ---------- */
@media (max-width: 1080px) {
  .eco { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__term { order: 2; }
  .cards { grid-template-columns: 1fr; }
  .card--feature { grid-column: auto; }
  .rules { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .collab { grid-template-columns: 1fr; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  :root { --nav-h: 58px; }

  .nav__burger { display: grid; }
  .nav__gh span { display: none; }
  .nav__gh { padding-inline: 12px; }

  .nav__links {
    position: fixed;
    inset: var(--nav-h) 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin: 0;
    padding: 14px var(--pad) 22px;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
  }
  .nav__links.is-open { opacity: 1; transform: none; visibility: visible; }
  .nav__links a { padding: 12px 14px; border-radius: 10px; font-size: 15.5px; }
  .nav__links a.is-active::after { display: none; }

  .footer__inner { grid-template-columns: 1fr; }
  .footer__links { gap: 32px; }
  .term__body { min-height: 280px; font-size: 11.6px; }
}

@media (max-width: 620px) {
  .eco   { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rules { grid-template-columns: 1fr; }
}

@media (max-width: 460px) {
  .eco { grid-template-columns: 1fr; }
  .stats__grid { grid-template-columns: 1fr; }
  .hero__title { font-size: clamp(2rem, 9vw, 2.5rem); }
  .card { padding: 22px; }
}

/* ---------- 18. Motion & print ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

@media print {
  .nav, .bg-grid, .bg-glow, .hero__term, .footer__top { display: none !important; }
  body { background: #fff; color: #000; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ---------- 19. Upstream flow ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: clamp(40px, 6vw, 60px);
}

.flow__step {
  position: relative;
  padding: 26px 24px;
  background: var(--bg);
  transition: background-color .24s ease;
}
.flow__step:hover { background: var(--surface); }

/* connector arrow between steps */
.flow__step:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -7px;
  top: 34px;
  z-index: 2;
  width: 13px;
  height: 13px;
  border-top: 1.6px solid var(--accent-line);
  border-right: 1.6px solid var(--accent-line);
  transform: rotate(45deg);
  background: var(--bg);
}

.flow__n {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--accent);
  padding: 2px 8px;
  border: 1px solid var(--accent-line);
  border-radius: 6px;
  background: var(--accent-soft);
  margin-bottom: 14px;
}
.flow__step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.flow__step p { font-size: 13.6px; color: var(--text-dim); }
.flow__step code {
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 11.6px;
}
.flow__step--end .flow__n { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, transparent); background: color-mix(in srgb, var(--ok) 12%, transparent); }

/* ---------- 20. Ecosystem tiles ---------- */
.eco__heading {
  font-size: 1.12rem;
  letter-spacing: -.02em;
  margin-bottom: 18px;
  color: var(--text);
}

.eco {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.eco__tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 18px 18px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  transition: transform .22s cubic-bezier(.2,.7,.3,1), border-color .22s ease, box-shadow .22s ease;
}
.eco__tile::after {
  content: "↗";
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 12px;
  color: var(--text-faint);
  transition: color .22s ease, transform .22s ease;
}
.eco__tile:hover { transform: translateY(-3px); border-color: var(--accent-line); box-shadow: var(--shadow); }
.eco__tile:hover::after { color: var(--accent); transform: translate(2px, -2px); }

.eco__name { font-size: 14.6px; font-weight: 650; letter-spacing: -.015em; padding-right: 20px; }
.eco__host { font-family: var(--mono); font-size: 11px; color: var(--accent); }
.eco__desc { margin-top: 6px; font-size: 13px; color: var(--text-dim); line-height: 1.5; }

.eco__tile--hi { background: linear-gradient(180deg, var(--accent-soft), transparent 70%), var(--surface); border-color: var(--accent-line); }

@media (max-width: 980px) {
  .flow { grid-template-columns: repeat(2, 1fr); }
  .flow__step:nth-child(2)::after { display: none; }
}
@media (max-width: 560px) {
  .flow { grid-template-columns: 1fr; }
  .flow__step::after { display: none !important; }
}

/* ---------- 21. Feature card: two-column layout on wide screens ---------- */
@media (min-width: 981px) {
  .card--feature {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    grid-template-areas:
      "top   meta"
      "title meta"
      "desc  meta"
      "tags  foot";
    column-gap: clamp(28px, 4vw, 52px);
    align-content: start;
    padding: 30px;
  }
  .card--feature .card__top   { grid-area: top;   margin-bottom: 16px; }
  .card--feature .card__title { grid-area: title; }
  .card--feature .card__desc  { grid-area: desc;  max-width: none; margin-bottom: 0; }

  .card--feature .card__meta {
    grid-area: meta;
    align-self: start;
    gap: 10px;
    margin: 0;
    padding: 18px 20px;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    background: var(--bg-elev);
  }
  .card--feature .card__meta li { flex-direction: column; gap: 2px; }
  .card--feature .card__meta .k {
    font-size: 10.5px;
    letter-spacing: .09em;
    text-transform: uppercase;
  }
  .card--feature .card__meta .v { color: var(--text); font-size: 12.4px; }

  .card--feature .card__tags { grid-area: tags; align-self: end; margin: 24px 0 0; }
  .card--feature .card__foot { grid-area: foot; align-self: end; margin: 24px 0 0; justify-content: flex-end; }
}

/* ---------- 22. FAQ ---------- */
.faq {
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.faq__item { background: var(--bg); }

.faq__item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  transition: background-color .2s ease;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { background: var(--surface); }

.faq__item summary h3 {
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -.018em;
  margin: 0;
  flex: 1;
}

/* chevron, rotated when the disclosure is open */
.faq__item summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 1.8px solid var(--accent);
  border-bottom: 1.8px solid var(--accent);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform .22s ease;
}
.faq__item[open] summary::after { transform: rotate(-135deg) translate(-2px, -2px); }
.faq__item[open] summary { background: var(--surface); }

.faq__a { padding: 0 24px 22px; }
.faq__a p { font-size: 14.6px; color: var(--text-dim); max-width: 76ch; }
.faq__a p + p { margin-top: 12px; }
.faq__a a { color: var(--accent); font-weight: 600; border-bottom: 1px solid var(--accent-line); }
.faq__a code {
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
}
.faq__a pre {
  margin: 14px 0;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-elev);
  overflow-x: auto;
  font-size: 12.2px;
  line-height: 1.7;
  color: var(--text-dim);
}
.faq__a pre code { padding: 0; border: 0; background: none; color: inherit; }

/* ---------- 23. About / profile ---------- */
.about {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.about__body {
  margin-top: 16px;
  font-size: 15px;
  color: var(--text-dim);
  max-width: 60ch;
}
.about__body a { color: var(--accent); font-weight: 600; border-bottom: 1px solid var(--accent-line); }

.about__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.about__sk-title {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-faint);
  font-weight: 500;
  margin-bottom: 14px;
}

.skills {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.skill { padding: 16px 20px; background: var(--bg); transition: background-color .22s ease; }
.skill:hover { background: var(--surface); }
.skill dt {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--accent);
  margin-bottom: 5px;
}
.skill dd { margin: 0; font-size: 13.8px; color: var(--text-dim); line-height: 1.55; }

.collab__facts a { color: var(--text-dim); border-bottom: 1px solid var(--border-strong); }
.collab__facts a:hover { color: var(--accent); }

@media (max-width: 980px) {
  .about { grid-template-columns: 1fr; }
}