/* ==========================================================================
   Cyberconspect — main.css
   Dark tech / terminal design system. No dependencies, no build step.
   ========================================================================== */

/* ---------- 1. Tokens ---------------------------------------------------- */

:root {
  /* Surfaces */
  --bg:            #07090c;
  --bg-elev:       #0c1016;
  --surface:       #10151d;
  --surface-2:     #151b25;
  --line:          #1e2632;
  --line-soft:     #171e27;

  /* Text */
  --text:          #e7edf4;
  --text-dim:      #9aa7b6;
  --text-faint:    #6b7787;

  /* Accents */
  --signal:        #00e59b;   /* primary — "system is live" green   */
  --signal-dim:    #0b9a6d;
  --signal-glow:   rgba(0, 229, 155, .14);
  --stream:        #55a8ff;   /* secondary — data / links           */
  --alert:         #ff6b6b;   /* risk / negative deltas             */
  --amber:         #ffc857;

  /* Type */
  --sans: "Inter", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI",
          Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, "Menlo",
          "Cascadia Mono", "Consolas", "Liberation Mono", monospace;

  /* Rhythm */
  --wrap: 1200px;
  --gut: clamp(1.25rem, 4vw, 2.5rem);
  --sec: clamp(4.5rem, 9vw, 8rem);
  --r: 10px;
  --r-lg: 16px;

  /* Motion */
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 2. Reset ----------------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

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;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; }
button { font: inherit; color: inherit; }

::selection { background: var(--signal); color: #04120c; }

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

/* Ambient grid — sits behind everything, never intercepts clicks */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .022) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .022) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 20%, transparent 78%);
}

/* ---------- 3. Layout primitives ----------------------------------------- */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gut);
  position: relative;
  z-index: 1;
}

.section { padding-block: var(--sec); position: relative; }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.section--hair { border-top: 1px solid var(--line-soft); }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--signal);
  color: #04120c;
  padding: .7rem 1.1rem;
  font: 600 13px/1 var(--mono);
  z-index: 200;
}
.skip:focus { left: 1rem; top: 1rem; }

/* ---------- 4. Typography ------------------------------------------------ */

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1.12;
  text-wrap: balance;
}

h1 { font-size: clamp(2.4rem, 6.4vw, 4.25rem); letter-spacing: -.035em; }
h2 { font-size: clamp(1.85rem, 3.8vw, 2.75rem); letter-spacing: -.028em; }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.3rem); letter-spacing: -.015em; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

.lede {
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  line-height: 1.6;
  color: var(--text-dim);
  max-width: 62ch;
  text-wrap: pretty;
}

.muted { color: var(--text-dim); }
.faint { color: var(--text-faint); }

/* Eyebrow: the small monospace kicker above every section heading */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font: 500 12px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 1.25rem;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px var(--signal-glow);
}

.sec-head { max-width: 68ch; margin-bottom: clamp(2.5rem, 5vw, 3.75rem); }
.sec-head p { margin-top: 1.1rem; }

.mono { font-family: var(--mono); }

/* ---------- 5. Buttons --------------------------------------------------- */

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  align-items: center;
}

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--text);
  --btn-bd: var(--line);
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .8rem 1.4rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  border-radius: var(--r);
  font: 500 14px/1 var(--sans);
  letter-spacing: -.005em;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .18s var(--ease), background .18s var(--ease),
              border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  --btn-bg: var(--signal);
  --btn-fg: #04120c;
  --btn-bd: var(--signal);
  font-weight: 600;
}
.btn--primary:hover { box-shadow: 0 8px 28px -10px var(--signal); }

.btn--ghost:hover {
  --btn-bd: #34404f;
  background: var(--surface);
}

.btn__arrow { transition: transform .18s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* Inline text link with an underline that grows on hover */
.tlink {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--signal);
  text-decoration: none;
  font: 500 14px/1.4 var(--mono);
  border-bottom: 1px solid rgba(0, 229, 155, .28);
  padding-bottom: 2px;
  transition: border-color .18s var(--ease), gap .18s var(--ease);
}
.tlink:hover { border-color: var(--signal); gap: .7rem; }

/* ---------- 6. Header / nav ---------------------------------------------- */

.hdr {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 12, .72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.hdr.is-stuck {
  border-bottom-color: var(--line-soft);
  background: rgba(7, 9, 12, .9);
}

.hdr__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 68px;
}

.logo {
  display: inline-flex;
  align-items: baseline;
  gap: .08rem;
  font: 600 15px/1 var(--mono);
  letter-spacing: -.02em;
  text-decoration: none;
  color: var(--text);
  white-space: nowrap;
}
.logo b { color: var(--signal); font-weight: 600; }
.logo i {
  font-style: normal;
  color: var(--signal);
  animation: blink 1.15s steps(1) infinite;
  margin-left: .15rem;
}
@keyframes blink { 0%, 49% { opacity: 1 } 50%, 100% { opacity: 0 } }

.nav { display: flex; align-items: center; gap: .35rem; }

.nav a {
  padding: .5rem .8rem;
  font: 500 13.5px/1 var(--sans);
  color: var(--text-dim);
  text-decoration: none;
  border-radius: 7px;
  transition: color .16s var(--ease), background .16s var(--ease);
}
.nav a:hover { color: var(--text); background: var(--surface); }
.nav a[aria-current="page"]:not(.btn) { color: var(--text); }
.nav a[aria-current="page"]:not(.btn)::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: 4px;
  background: var(--signal);
}

.hdr__cta { display: inline-flex; }

.burger {
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}
.burger span {
  display: block;
  width: 16px; height: 1.5px;
  background: var(--text);
  position: relative;
  transition: background .16s var(--ease);
}
.burger span::before, .burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px; height: 1.5px;
  background: var(--text);
  transition: transform .22s var(--ease), top .22s var(--ease);
}
.burger span::before { top: -5px; }
.burger span::after  { top: 5px; }
.burger[aria-expanded="true"] span { background: transparent; }
.burger[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.burger[aria-expanded="true"] span::after  { top: 0; transform: rotate(-45deg); }

@media (max-width: 880px) {
  .burger { display: inline-flex; }
  .hdr__cta { display: none; }
  .nav {
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem var(--gut) 1.75rem;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--line);
    transform: translateY(-140%);
    transition: transform .3s var(--ease);
  }
  .nav.is-open { transform: translateY(0); }
  .nav a { padding: .85rem .25rem; font-size: 1rem; border-radius: 0; }
  .nav a + a { border-top: 1px solid var(--line-soft); }
  .nav a[aria-current="page"]:not(.btn)::after { display: none; }
  .nav a[aria-current="page"]:not(.btn) { color: var(--signal); }
  .nav .btn { margin-top: 1rem; justify-content: center; }
}

/* ---------- 7. Hero ------------------------------------------------------ */

.hero {
  position: relative;
  padding-block: clamp(3.5rem, 8vw, 6.5rem) clamp(4rem, 8vw, 7rem);
  overflow: hidden;
}
.hero::after {
  /* soft signal bloom behind the headline */
  content: "";
  position: absolute;
  top: -30%;
  left: 50%;
  width: min(1100px, 130vw);
  aspect-ratio: 2 / 1;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, var(--signal-glow), transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: center;
}
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; gap: 3rem; }
}

.hero h1 span { color: var(--signal); }
.hero .lede { margin-top: 1.5rem; }
.hero .btn-row { margin-top: 2.25rem; }

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  margin-top: 2.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line-soft);
}
.hero__meta div { min-width: 0; }
.hero__meta dt {
  font: 500 11px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: .5rem;
}
.hero__meta dd { margin: 0; font-size: 14px; color: var(--text); }

/* ---------- 8. Terminal card --------------------------------------------- */

.term {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-elev) 100%);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: 0 30px 70px -30px rgba(0, 0, 0, .9),
              0 0 0 1px rgba(255, 255, 255, .015) inset;
  overflow: hidden;
}

.term__bar {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .7rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, .014);
}
.term__dots { display: flex; gap: .4rem; }
.term__dots i {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #2a3441;
}
.term__dots i:first-child { background: #33404e; }
.term__title {
  font: 500 11.5px/1 var(--mono);
  color: var(--text-faint);
  letter-spacing: .04em;
}

.term__body {
  padding: 1.1rem 1.15rem 1.35rem;
  font: 400 12.5px/1.85 var(--mono);
  color: var(--text-dim);
  overflow-x: auto;
}
.term__body .l { white-space: pre; }
.term__body .c { color: var(--signal); }
.term__body .k { color: var(--stream); }
.term__body .w { color: var(--amber); }
.term__body .d { color: var(--text-faint); }
.term__body .ok::after {
  content: "ok";
  color: var(--signal);
}

/* Staggered reveal of terminal lines */
.term__body .l {
  opacity: 0;
  animation: termIn .35s var(--ease) forwards;
}
@keyframes termIn { from { opacity: 0; transform: translateY(3px) } to { opacity: 1; transform: none } }

.term__cursor {
  display: inline-block;
  width: 7px; height: 13px;
  vertical-align: -2px;
  background: var(--signal);
  animation: blink 1.15s steps(1) infinite;
}

/* ---------- 9. Ticker / marquee ------------------------------------------ */

.ticker {
  border-block: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, .012);
  overflow: hidden;
  padding-block: .9rem;
}
.ticker__track {
  display: flex;
  gap: 3rem;
  width: max-content;
  animation: slide 42s linear infinite;
}
.ticker:hover .ticker__track { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(-50%) } }

.ticker span {
  font: 500 12px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-faint);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: .75rem;
}
.ticker span::before { content: "◆"; color: var(--signal-dim); font-size: 8px; }

/* ---------- 10. Cards ---------------------------------------------------- */

.grid { display: grid; gap: 1.25rem; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 980px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

.card {
  position: relative;
  padding: 1.6rem 1.5rem 1.75rem;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color .22s var(--ease), transform .22s var(--ease),
              background .22s var(--ease);
}
.card::before {
  /* top hairline that lights up on hover */
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--signal), transparent);
  opacity: 0;
  transition: opacity .22s var(--ease);
}
.card:hover {
  border-color: #2a3542;
  transform: translateY(-2px);
  background: var(--surface-2);
}
.card:hover::before { opacity: .7; }

.card__num {
  font: 500 11px/1 var(--mono);
  letter-spacing: .16em;
  color: var(--text-faint);
  margin-bottom: 1.15rem;
  display: block;
}
.card h3 { margin-bottom: .7rem; }
.card p { font-size: 14.5px; color: var(--text-dim); line-height: 1.62; }

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-top: 1.25rem;
  padding: 0;
  list-style: none;
}
.card__tags li {
  font: 500 11px/1 var(--mono);
  letter-spacing: .04em;
  color: var(--text-faint);
  padding: .35rem .55rem;
  border: 1px solid var(--line);
  border-radius: 5px;
}

.card__icon {
  width: 34px; height: 34px;
  margin-bottom: 1.15rem;
  color: var(--signal);
}
.card__icon svg { width: 100%; height: 100%; }

/* Link card — whole card is clickable via a stretched pseudo-element */
.card--link h3 a { text-decoration: none; }
.card--link h3 a::after { content: ""; position: absolute; inset: 0; }

/* ---------- 11. Stat blocks ---------------------------------------------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
}
@media (max-width: 780px) { .stats { grid-template-columns: repeat(2, 1fr); } }

.stat { background: var(--bg-elev); padding: 1.6rem 1.4rem; }
.stat dt {
  font: 500 11px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: .75rem;
}
.stat dd {
  margin: 0;
  font: 600 clamp(1.3rem, 2.4vw, 1.7rem)/1.15 var(--sans);
  letter-spacing: -.025em;
  color: var(--text);
}
.stat dd small {
  display: block;
  margin-top: .45rem;
  font: 400 13px/1.5 var(--sans);
  letter-spacing: 0;
  color: var(--text-dim);
}

/* ---------- 12. Architecture diagram ------------------------------------- */

.arch {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: var(--bg-elev);
  padding: clamp(1.25rem, 3vw, 2rem);
  overflow-x: auto;
}
.arch svg { min-width: 720px; margin-inline: auto; }

.arch-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.75rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-soft);
}
.arch-legend span {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font: 400 12.5px/1 var(--mono);
  color: var(--text-faint);
}
.arch-legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }

/* ---------- 13. Process / steps ------------------------------------------ */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

.step {
  padding: 1.9rem 1.5rem 2rem 0;
  border-right: 1px solid var(--line-soft);
  padding-right: 1.75rem;
  position: relative;
}
.step:last-child { border-right: 0; }
.step::before {
  content: "";
  position: absolute;
  top: -1px; left: 0;
  width: 40px; height: 2px;
  background: var(--signal);
}
@media (max-width: 900px) {
  .step { border-right: 0; border-bottom: 1px solid var(--line-soft); padding-right: 1.5rem; }
}

.step__n {
  font: 500 11px/1 var(--mono);
  letter-spacing: .16em;
  color: var(--signal);
  display: block;
  margin-bottom: 1rem;
}
.step h3 { font-size: 1.05rem; margin-bottom: .6rem; }
.step p { font-size: 14px; color: var(--text-dim); }

/* ---------- 14. Case study block ----------------------------------------- */

.case {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--bg-elev);
}
@media (max-width: 900px) { .case { grid-template-columns: 1fr; } }

.case__body { padding: clamp(1.75rem, 4vw, 2.75rem); }
.case__side {
  padding: clamp(1.75rem, 4vw, 2.75rem);
  border-left: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, .012);
}
@media (max-width: 900px) {
  .case__side { border-left: 0; border-top: 1px solid var(--line-soft); }
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font: 500 11px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid rgba(255, 200, 87, .28);
  background: rgba(255, 200, 87, .07);
  padding: .38rem .6rem;
  border-radius: 5px;
  margin-bottom: 1.35rem;
}
.badge--live { color: var(--signal); border-color: rgba(0, 229, 155, .3); background: rgba(0, 229, 155, .07); }

.kv { margin: 0; }
.kv > div {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 1rem;
  padding: .85rem 0;
  border-bottom: 1px solid var(--line-soft);
}
.kv > div:last-child { border-bottom: 0; }
@media (max-width: 480px) { .kv > div { grid-template-columns: 1fr; gap: .3rem; } }
.kv dt {
  font: 500 11px/1.5 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.kv dd { margin: 0; font-size: 14px; color: var(--text); }

/* ---------- 15. Checklist ------------------------------------------------ */

/* The list item must stay a normal inline flow container: its content mixes
   <strong> with bare text, and any grid/flex display would wrap that text into
   a separate anonymous item. Marker is positioned out of flow instead. */
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: .8rem; }
.checks li {
  position: relative;
  padding-left: 27px;
  font-size: 14.5px;
  color: var(--text-dim);
  line-height: 1.6;
  text-wrap: pretty;
}
.checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .22em;
  width: 17px; height: 17px;
  border-radius: 4px;
  border: 1px solid var(--signal-dim);
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.3l2.7 2.7L12 5.7' fill='none' stroke='%2300e59b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    center / 11px 11px no-repeat;
}
.checks strong { color: var(--text); font-weight: 500; }

/* ---------- 16. Stack list ----------------------------------------------- */

.stack {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.stack__cell { background: var(--bg-elev); padding: 1.4rem 1.35rem; }
.stack__cell h4 {
  margin: 0 0 .8rem;
  font: 500 11px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--signal);
}
.stack__cell ul { margin: 0; padding: 0; list-style: none; }
.stack__cell li {
  font: 400 13.5px/1.9 var(--mono);
  color: var(--text-dim);
}

/* ---------- 17. Contact / forms ------------------------------------------ */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.field { display: grid; gap: .5rem; margin-bottom: 1.1rem; }
.field label {
  font: 500 11px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.field input, .field textarea, .field select {
  width: 100%;
  padding: .8rem .9rem;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r);
  color: var(--text);
  font: 400 14.5px/1.5 var(--sans);
  transition: border-color .16s var(--ease), background .16s var(--ease);
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--signal-dim);
  background: var(--surface);
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-faint); }

.form-note { font-size: 12.5px; color: var(--text-faint); margin-top: 1rem; }

.contact-card {
  background: var(--bg-elev);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  padding: clamp(1.5rem, 3vw, 2rem);
}
.contact-card + .contact-card { margin-top: 1.25rem; }

.copy-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
  margin-top: .9rem;
}
.copy-row code {
  font: 400 14px/1 var(--mono);
  color: var(--signal);
  background: rgba(0, 229, 155, .07);
  border: 1px solid rgba(0, 229, 155, .2);
  padding: .55rem .7rem;
  border-radius: 7px;
}
.copy-btn {
  background: none;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: .5rem .7rem;
  font: 500 11px/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-dim);
  cursor: pointer;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}
.copy-btn:hover { color: var(--text); border-color: #34404f; }
.copy-btn.is-done { color: var(--signal); border-color: var(--signal-dim); }

/* ---------- 18. CTA band ------------------------------------------------- */

.cta {
  position: relative;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background:
    radial-gradient(ellipse 70% 130% at 15% 0%, rgba(0, 229, 155, .09), transparent 60%),
    var(--bg-elev);
  padding: clamp(2.25rem, 5vw, 3.5rem);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}
@media (max-width: 820px) { .cta { grid-template-columns: 1fr; } }
.cta h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.cta p { margin-top: .9rem; color: var(--text-dim); max-width: 52ch; }

/* ---------- 19. Footer --------------------------------------------------- */

.ftr {
  border-top: 1px solid var(--line-soft);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
  margin-top: var(--sec);
}
.ftr__top {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 2.5rem;
  padding-bottom: 3rem;
}
@media (max-width: 900px) { .ftr__top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .ftr__top { grid-template-columns: 1fr; gap: 2rem; } }

.ftr__brand p {
  margin-top: 1rem;
  font-size: 13.5px;
  color: var(--text-faint);
  max-width: 34ch;
}
.ftr h4 {
  margin: 0 0 1rem;
  font: 500 11px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.ftr ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .65rem; }
.ftr ul a {
  font-size: 13.5px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color .16s var(--ease);
}
.ftr ul a:hover { color: var(--signal); }

.ftr__bot {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line-soft);
  font: 400 12px/1.6 var(--mono);
  color: var(--text-faint);
}
.ftr__bot a { color: var(--text-faint); text-decoration: none; }
.ftr__bot a:hover { color: var(--text-dim); }

.status {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}
.status::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 3px var(--signal-glow);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--signal-glow) }
  50%      { box-shadow: 0 0 0 6px rgba(0, 229, 155, .06) }
}

/* ---------- 20. Page header (inner pages) -------------------------------- */

.phead {
  position: relative;
  padding-block: clamp(3.5rem, 7vw, 5.5rem) clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}
.phead::after {
  content: "";
  position: absolute;
  top: -60%; left: 20%;
  width: 700px; aspect-ratio: 2/1;
  background: radial-gradient(ellipse at center, var(--signal-glow), transparent 65%);
  pointer-events: none;
}
.phead .lede { margin-top: 1.35rem; }

/* ---------- 21. Reveal on scroll ----------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .term__body .l { opacity: 1; }
}

/* ---------- 22. Complexity chart ----------------------------------------- */

.chart {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background:
    radial-gradient(ellipse 60% 100% at 85% 10%, rgba(255, 107, 107, .05), transparent 60%),
    var(--bg-elev);
  padding: clamp(1.25rem, 3vw, 2rem);
  overflow: hidden;
}
/* Desktop chart: wide landscape SVG. Only this wrapper may scroll, never
   the whole card, so the legend below stays put. */
.chart__scroll { overflow-x: auto; }
.chart__scroll svg { min-width: 620px; margin-inline: auto; }
/* Mobile chart: a separate portrait SVG drawn for narrow screens — both
   curve endpoints, the wall and the labels are visible without scrolling. */
.chart__mobile { display: none; }
@media (max-width: 719px) {
  .chart__scroll { display: none; }
  .chart__mobile { display: block; }
  .chart__mobile svg { width: 100%; height: auto; display: block; }
}

.chart__keys {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
}
.chart__key { display: grid; grid-template-columns: 26px 1fr; gap: .85rem; }
.chart__key b {
  font: 600 15px/1.3 var(--mono);
  display: block;
  margin-bottom: .3rem;
}
.chart__key p { font-size: 13.5px; color: var(--text-dim); line-height: 1.55; }
.chart__key i {
  width: 22px; height: 3px;
  border-radius: 2px;
  margin-top: .5rem;
}
.chart__key--good b { color: var(--signal); }
.chart__key--good i { background: var(--signal); }
.chart__key--bad  b { color: var(--alert); }
.chart__key--bad  i { background: var(--alert); }

/* ---------- 23. Question / answer exchange -------------------------------- */

.qa {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.qa__row {
  background: var(--bg-elev);
  padding: 1.4rem clamp(1.25rem, 3vw, 1.75rem);
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 1.25rem;
  align-items: start;
}
@media (max-width: 620px) {
  .qa__row { grid-template-columns: 1fr; gap: .6rem; }
}
.qa__who {
  font: 500 10.5px/1.6 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding-top: .25rem;
}
.qa__row--q .qa__who { color: var(--signal); }
.qa__text { font-size: 15px; line-height: 1.6; color: var(--text-dim); }
.qa__row--q .qa__text { color: var(--text); font-weight: 500; }

/* ---------- 24. Coverage spectrum ---------------------------------------- */

.spectrum {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.spectrum__cell {
  background: var(--bg-elev);
  padding: 1.5rem 1.4rem 1.6rem;
  transition: background .2s var(--ease);
}
.spectrum__cell:hover { background: var(--surface); }
.spectrum__cell h4 {
  margin: 0 0 .6rem;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--text);
}
.spectrum__cell p { font-size: 13.5px; line-height: 1.6; color: var(--text-dim); }
.spectrum__cell span {
  display: block;
  font: 500 10.5px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: .9rem;
}
.spectrum__cell--off span { color: var(--text-faint); }
.spectrum__cell--off h4 { color: var(--text-dim); }

/* ---------- 25. Utilities ------------------------------------------------ */

.u-mt-sm { margin-top: 1.5rem; }
.u-mt   { margin-top: 2.5rem; }
.u-mt-lg { margin-top: clamp(3rem, 5vw, 4rem); }
.u-center { text-align: center; margin-inline: auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Inline emphasis inside headings — the exponent/addition contrast */
.hl { color: var(--signal); }
.hl-bad { color: var(--alert); }
.hero h1 span.hl-bad, h1 span.hl-bad, h2 span.hl-bad { color: var(--alert); }
.hero h1 span.hl, h1 span.hl, h2 span.hl { color: var(--signal); }

/* ---------- 26. Language switcher ---------------------------------------- */

.hdr__right { display: flex; align-items: center; gap: .75rem; }

.lang {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--line);
  border-radius: 7px;
  font: 600 11px/1 var(--mono);
  letter-spacing: .06em;
}
.lang a {
  padding: .42rem .55rem;
  border-radius: 5px;
  color: var(--text-faint);
  text-decoration: none;
  transition: color .16s var(--ease), background .16s var(--ease);
}
.lang a:hover { color: var(--text); }
.lang a[aria-current="true"] { background: var(--surface-2); color: var(--signal); }

/* ---------- 27. Drafting accents — architecture & creativity hints -------- */

/* Registration mark (technical-drawing crosshair) on page headers */
.phead .wrap::after {
  content: "";
  position: absolute;
  top: .5rem;
  right: var(--gut);
  width: 26px; height: 26px;
  opacity: .3;
  pointer-events: none;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='7' fill='none' stroke='%236b7787'/%3E%3Cpath d='M12 0v24M0 12h24' stroke='%236b7787'/%3E%3C/svg%3E")
    center / contain no-repeat;
}

/* Dimension line — |———| measurement ornament */
.dimline {
  display: block;
  position: relative;
  width: 140px;
  height: 11px;
  margin: 0 0 1.2rem;
}
.dimline::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 50%;
  border-top: 1px solid #3a4757;
}
.dimline::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: 0;
  border-left: 1px solid #3a4757;
  box-shadow: 139px 0 0 0 #3a4757;
}

/* Blueprint panel — the project drawing set */
.blueprint {
  position: relative;
  border: 1px dashed #2a3542;
  border-radius: var(--r-lg);
  overflow: hidden;
  background-color: var(--bg-elev);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M6 0v12M0 6h12' stroke='%233a4757'/%3E%3C/svg%3E"),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M6 0v12M0 6h12' stroke='%233a4757'/%3E%3C/svg%3E"),
    repeating-linear-gradient(to right, rgba(85, 168, 255, .03) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(to bottom, rgba(85, 168, 255, .03) 0 1px, transparent 1px 24px);
  background-position: top 12px left 12px, bottom 12px right 12px, 0 0, 0 0;
  background-size: 12px 12px, 12px 12px, auto, auto;
  background-repeat: no-repeat, no-repeat, repeat, repeat;
}

.blueprint__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .5rem 1.5rem;
  padding: .85rem 1.5rem;
  border-bottom: 1px dashed #2a3542;
  font: 500 10.5px/1.5 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.blueprint__head b { color: var(--stream); font-weight: 500; }

.blueprint__row {
  display: grid;
  grid-template-columns: 58px 250px 1fr;
  gap: .5rem 1.5rem;
  align-items: baseline;
  padding: 1.05rem 1.5rem;
  border-bottom: 1px dashed var(--line-soft);
  transition: background .18s var(--ease);
}
.blueprint__row:last-child { border-bottom: 0; }
.blueprint__row:hover { background: rgba(255, 255, 255, .015); }
@media (max-width: 760px) {
  .blueprint__row { grid-template-columns: 58px 1fr; }
  .blueprint__row p { grid-column: 2; }
}

.blueprint__no {
  font: 500 12px/1.6 var(--mono);
  letter-spacing: .08em;
  color: var(--stream);
}
.blueprint__row h3 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.01em;
}
.blueprint__row p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text-dim);
}

/* ---------- 28. Hero background — architecture flowing into a net -------- */

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero__bg svg {
  position: absolute;
  left: 50%;
  top: 52%;
  transform: translate(-50%, -50%);
  width: min(1560px, 128%);
  height: auto;
  opacity: .9;
}
@media (max-width: 760px) {
  .hero__bg { display: none; }
}

/* ---------- 29. Hero pathway line ---------------------------------------- */

.hero__path {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .3rem .55rem;
  margin: 2.75rem 0 0;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line-soft);
  font: 500 12.5px/1.7 var(--mono);
  letter-spacing: .02em;
  color: var(--text-dim);
}
.hero__path i {
  font-style: normal;
  color: var(--signal-dim);
}
.hero__path b {
  color: var(--signal);
  font-weight: 600;
  margin-left: .3rem;
  white-space: nowrap;
}

/* ---------- 30. Hero CLI strip -------------------------------------------- */

.hero__cli {
  margin-top: 2.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line-soft);
  font: 400 12.5px/1.9 var(--mono);
  color: var(--text-dim);
  overflow-x: auto;
}
.hero__cli .l { white-space: pre-wrap; }
.hero__cli .c { color: var(--signal); }
.hero__cli .k { color: var(--stream); }
.hero__cli .hl { color: var(--signal); font-weight: 600; }
.hero__cli .d { color: var(--text-faint); }

/* ---------- 31. Mobile refinements ---------------------------------------- */

/* iOS Safari zooms the page when a focused field's font is under 16px.
   Bump form controls to 16px on touch-sized screens to prevent it. */
@media (max-width: 760px) {
  .field input, .field textarea, .field select { font-size: 16px; }
}

/* Hero CLI: tighter type on narrow screens so the yaml lines wrap less */
@media (max-width: 480px) {
  .hero__cli { font-size: 11px; line-height: 1.8; }
}

/* Terminal window title: never wrap, ellipsize on tiny screens */
.term__bar { min-width: 0; }
.term__title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

/* Mobile nav: scroll inside the panel on short (landscape) viewports */
@media (max-width: 880px) {
  .nav {
    max-height: calc(100dvh - 68px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
}