/* ==========================================================================
   Zenmul — main.css
   "The website is the workflow." One stylesheet for the whole site.
   ========================================================================== */

html, body { background: #0C0D10; color: #EDEAE3; }

/* --- 1. Tokens ----------------------------------------------------------- */
:root {
  --bg:        #0C0D10;
  --bg-lift:   #131519;
  --ink:       #EDEAE3;
  --sub:       #9C9992;
  --faint:     #5F5D58;
  --line:      rgba(237, 234, 227, 0.13);
  --line-soft: rgba(237, 234, 227, 0.07);
  --accent:    #FF5B44;
  --wire:      rgba(237, 234, 227, 0.22);

  --display: "Archivo", system-ui, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, monospace;

  --wrap: 1280px;
  --rail: 4.5rem;

  --h1:   clamp(2.4rem, 4.5vw, 4.1rem);
  --h2:   clamp(1.8rem, 3.4vw, 2.9rem);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
.is-off { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--display); line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased; }

h1, h2, h3 { font-weight: 700; line-height: 1.05; letter-spacing: -0.035em; text-wrap: balance; }
h1 { font-size: var(--h1); }
h2 { font-size: var(--h2); }
h3 { font-size: 1.05rem; letter-spacing: -0.02em; }
p { color: var(--sub); max-width: 62ch; }
a { color: inherit; text-decoration: none; }
img, svg, canvas { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(1.25rem, 4vw, 3rem); }
.eyebrow { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--faint); }

/* --- 2. Header ----------------------------------------------------------- */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  padding: 1.3rem clamp(1.25rem, 4vw, 3rem);
  background: linear-gradient(180deg, rgba(12,13,16,0.96) 40%, rgba(12,13,16,0) 100%);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  mask-image: linear-gradient(180deg, #000 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, #000 60%, transparent 100%);
}
.logo { justify-self: start; display: inline-flex; align-items: center; gap: 0.55rem; font-weight: 700; letter-spacing: -0.04em; }
.logo img { width: 26px; height: 26px; border-radius: 0; }

.nav { justify-self: center; display: flex; gap: 0.35rem; }
.nav a {
  height: 36px; display: inline-flex; align-items: center; padding: 0 0.9rem;
  font-family: var(--mono); font-size: 0.78rem; color: var(--sub);
  border: 1px solid transparent; transition: color .25s ease, border-color .25s ease;
}
.nav a:hover { color: var(--ink); border-color: var(--line); }
.header-cta { justify-self: end; }

.burger { display: none; justify-self: end; width: 40px; height: 40px; border: 1px solid var(--line); background: rgba(13,13,15,0.7); cursor: pointer; place-content: center; gap: 5px; z-index: 80; }
.burger i { display: block; width: 16px; height: 1.5px; background: var(--ink); transition: transform .25s ease, opacity .2s ease; }
body.nav-open .burger i:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
body.nav-open .burger i:nth-child(2) { opacity: 0; }
body.nav-open .burger i:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* --- 3. Buttons ---------------------------------------------------------- */
.btn {
  position: relative; overflow: hidden; display: inline-flex; align-items: center; gap: 0.65rem;
  height: 44px; padding: 0 1.2rem;
  font-family: var(--display); font-weight: 600; font-size: 0.88rem; letter-spacing: -0.015em;
  line-height: 1; white-space: nowrap; cursor: pointer; border: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease, color .25s ease;
}
.btn::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 20%, rgba(255,255,255,0.35) 48%, transparent 76%);
  transform: translateX(-130%); transition: transform .6s ease;
}
.btn:hover::after { transform: translateX(130%); }
.btn svg { flex: none; transition: transform .25s ease; }
.btn:hover svg { transform: translateX(3px); }
.btn--solid { background: var(--accent); color: #FFF4F1; border-color: var(--accent); }
.btn--solid:hover { background: #FF7259; }
.btn--ghost { color: var(--ink); border-color: var(--line); background: rgba(237,234,227,0.03); }
.btn--ghost:hover { border-color: rgba(237,234,227,0.42); }
.btn--sm { height: 36px; font-size: 0.8rem; padding: 0 0.95rem; }

/* --- 4. The rail (the spine of the workflow) ----------------------------- */
.page { position: relative; z-index: 1; }
.rail {
  position: fixed; top: 0; bottom: 0; left: clamp(1.25rem, 4vw, 3rem);
  width: 1px; z-index: 40; pointer-events: none;
  background: var(--line-soft);
}
.rail__fill { position: absolute; top: 0; left: 0; width: 100%; height: 0; background: linear-gradient(180deg, var(--accent), rgba(255,91,68,0.25)); }
.rail__node {
  position: absolute; left: 50%; width: 9px; height: 9px; margin-left: -4.5px; margin-top: -4.5px;
  border: 1px solid var(--faint); background: var(--bg); transform: rotate(45deg);
  transition: border-color .4s ease, background .4s ease, transform .4s ease;
}
.rail__node.on { border-color: var(--accent); background: var(--accent); transform: rotate(45deg) scale(1.25); }

/* --- 5. Hero ------------------------------------------------------------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; justify-content: center;
  padding-block: 7rem 4rem; overflow: hidden;
}
#sky { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
#graph { width: 100%; height: 100%; }
.hero .wrap { position: relative; z-index: 1; }
.hero__copy { max-width: 60rem; margin-inline: auto; text-align: center; }
.hero__copy .badge, .hero__copy .lede { margin-inline: auto; }
.hero-actions { justify-content: center; }
.stats { justify-content: center; }
.hero h1 { font-weight: 500; letter-spacing: 0.02em; }
.hero h1 em { font-style: normal; color: var(--accent); letter-spacing: 0.01em; }
.rule {
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.34em;
  text-transform: uppercase; color: var(--sub); margin-bottom: 2rem;
}
.rule::before, .rule::after { content: ""; width: clamp(2rem, 6vw, 5rem); height: 1px; background: var(--line); }
.btn--pill { border-radius: 999px; height: 52px; padding: 0 2rem; letter-spacing: 0.14em; text-transform: uppercase; font-size: 0.78rem; font-weight: 500; }

.badge {
  display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.45rem 0.8rem; margin-bottom: 1.5rem;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink); border: 1px solid var(--line); background: rgba(13,13,15,0.6);
}
.badge i { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; animation: blink 2.2s ease-in-out infinite; }
@keyframes blink { 0%,100% { opacity: 1 } 50% { opacity: 0.25 } }

.line { display: block; overflow: hidden; padding: 0.05em 0.1em 0.13em; margin-bottom: -0.05em; }
.line > span { display: block; }
.hero h1 em { font-style: normal; color: var(--accent); }

.hero .lede { margin-top: 1.35rem; max-width: 46ch; font-size: clamp(0.98rem, 1.15vw, 1.1rem); line-height: 1.6; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1.9rem; }

.stats { display: flex; flex-wrap: wrap; gap: 2.5rem; margin-top: 3rem; padding-top: 1.6rem; border-top: 1px solid var(--line-soft); }
.stat dt { font-family: var(--mono); font-size: 1.5rem; letter-spacing: -0.03em; }
.stat dd { font-size: 0.78rem; color: var(--faint); margin-top: 0.15rem; }

/* --- 6. Sections --------------------------------------------------------- */
.section { position: relative; padding-block: clamp(4rem, 10vh, 7rem); border-top: 1px solid var(--line-soft); background: transparent; }
.section__head { max-width: 50ch; margin-bottom: 2.75rem; }
.section__head .eyebrow { display: block; margin-bottom: 0.9rem; }
.section__head p { margin-top: 0.9rem; font-family: var(--mono); font-size: 0.88rem; }
.rise { opacity: 0; transform: translateY(24px); transition: opacity .85s cubic-bezier(.16,1,.3,1), transform .85s cubic-bezier(.16,1,.3,1); }
.rise.in { opacity: 1; transform: none; }

/* --- 7. Scanner, which builds a workflow in front of you ------------------ */
.scanner { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 3vw, 3rem); border: 1px solid var(--line); background: rgba(17,19,24,0.92); }
.scanner__ask { padding: clamp(1.5rem, 2.5vw, 2.5rem); }
.scanner__canvas { border-left: 1px solid var(--line); padding: clamp(1.5rem, 2.5vw, 2.5rem); display: flex; flex-direction: column; justify-content: center; min-height: 22rem; }
.scanner__step { display: none; }
.scanner__step.is-active { display: block; }
.scanner__q { font-size: clamp(1.1rem, 1.8vw, 1.45rem); font-weight: 700; letter-spacing: -0.03em; margin: 0.75rem 0 1.4rem; }
.scanner__opts { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.scanner__opt {
  font-family: var(--mono); font-size: 0.82rem; color: var(--ink); background: transparent;
  border: 1px solid var(--line); padding: 0.6rem 1rem; cursor: pointer;
  transition: border-color .2s ease, color .2s ease;
}
.scanner__opt:hover { border-color: var(--accent); color: var(--accent); }
.scanner__back { margin-top: 1.3rem; background: none; border: 0; color: var(--faint); font-family: var(--mono); font-size: 0.75rem; cursor: pointer; text-decoration: underline; }
.scanner__result p { font-family: var(--mono); font-size: 0.86rem; margin-top: 0.8rem; }

/* Build sheet: the panel where the system assembles */
.canvas__bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-bottom: 0.9rem; margin-bottom: 1.25rem; border-bottom: 1px solid var(--line); }
.canvas__status { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); }
.canvas__status i { width: 6px; height: 6px; border-radius: 50%; background: var(--faint); }
.canvas__status.is-live { color: var(--accent); }
.canvas__status.is-live i { background: var(--accent); animation: blink 1.6s ease-in-out infinite; }
.canvas__foot { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.25rem; padding-top: 0.9rem; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }
.canvas__foot b { color: var(--accent); font-weight: 500; }

.chain { display: flex; flex-direction: column; }
.chain__empty { font-family: var(--mono); font-size: 0.78rem; color: var(--faint); }

.node {
  display: grid; grid-template-columns: 3.1rem 1fr; align-items: center; gap: 0.85rem;
  border: 1px solid var(--line); background: rgba(12,13,16,0.9); padding: 0.7rem 0.85rem;
  opacity: 0; transform: translateY(8px);
  animation: nodeIn .45s cubic-bezier(.16,1,.3,1) forwards;
}
.node__kind {
  font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.12em; text-align: center;
  color: var(--faint); border: 1px solid var(--line-soft); padding: 0.25rem 0;
}
.node__main b { display: block; font-family: var(--mono); font-size: 0.82rem; font-weight: 500; color: var(--ink); }
.node__main em { display: block; font-style: normal; font-family: var(--mono); font-size: 0.7rem; color: var(--faint); margin-top: 0.15rem; line-height: 1.45; }
.node--ctx .node__kind, .node--trg .node__kind { color: var(--ink); border-color: var(--line); }
.node--out { border-color: rgba(255,91,68,0.45); }
.node--out .node__kind { color: var(--accent); border-color: rgba(255,91,68,0.45); }
.node--out .node__main b { color: var(--accent); }

.wire { position: relative; height: 18px; margin-left: 1.5rem; width: 1px; background: var(--wire); opacity: 0; animation: nodeIn .35s ease forwards; }
.wire i { position: absolute; left: -1.5px; width: 4px; height: 4px; background: var(--accent); border-radius: 50%; animation: flow 1.8s linear infinite; }
@keyframes flow { 0% { top: -2px; opacity: 0 } 20% { opacity: 1 } 80% { opacity: 1 } 100% { top: 16px; opacity: 0 } }
@keyframes nodeIn { to { opacity: 1; transform: none; } }

.spec { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 1.5rem 0 0; padding: 1.1rem 0; border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.spec dt { font-family: var(--mono); font-size: 1.35rem; color: var(--accent); letter-spacing: -0.03em; }
.spec dd { font-size: 0.7rem; color: var(--faint); margin-top: 0.25rem; line-height: 1.4; }

/* --- 8. Rows ------------------------------------------------------------- */
.rows { border-top: 1px solid var(--line-soft); }
.row { display: grid; grid-template-columns: 3rem 13rem 1fr auto; gap: 1.25rem; align-items: baseline; padding: 1.4rem 0; border-bottom: 1px solid var(--line-soft); transition: background .3s ease, padding-inline .3s ease; }
.row:hover { background: rgba(237,234,227,0.025); padding-inline: 0.9rem; }
.row__n { font-family: var(--mono); font-size: 0.75rem; color: var(--faint); }
.row__name { font-size: 1.1rem; font-weight: 600; letter-spacing: -0.025em; }
.row__desc { font-family: var(--mono); font-size: 0.82rem; color: var(--sub); }
.row__go { font-family: var(--mono); font-size: 0.72rem; color: var(--faint); }
.row:hover .row__go { color: var(--accent); }

/* --- 9. Steps ------------------------------------------------------------ */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.75rem; }
.step__n { font-family: var(--mono); font-size: 0.72rem; color: var(--accent); padding-bottom: 0.7rem; margin-bottom: 0.9rem; border-bottom: 1px solid var(--line); }
.step p { font-family: var(--mono); font-size: 0.8rem; margin-top: 0.45rem; }

/* --- 10. Case ------------------------------------------------------------ */
.case { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.case p { font-family: var(--mono); font-size: 0.88rem; margin-bottom: 0.9rem; }
.case__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1.75rem 1.25rem; }
.case__stats dt { font-family: var(--mono); font-size: clamp(1.5rem, 2.6vw, 2.1rem); color: var(--accent); letter-spacing: -0.03em; }
.case__stats dd { font-size: 0.78rem; color: var(--faint); margin-top: 0.3rem; }
.quote { margin-top: 2.25rem; padding-top: 1.75rem; border-top: 1px solid var(--line-soft); }
.quote p { font-family: var(--display); font-size: 1rem; color: var(--ink); line-height: 1.55; }
.quote footer { margin-top: 0.9rem; font-family: var(--mono); font-size: 0.76rem; color: var(--faint); }

/* --- 11. Plans ----------------------------------------------------------- */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.plan { background: rgba(12,13,16,0.88); padding: clamp(1.4rem, 2.2vw, 2rem); display: flex; flex-direction: column; }
.plan--featured { background: var(--bg-lift); }
.plan h3 { margin-bottom: 1.1rem; }
.plan__price { font-family: var(--mono); font-size: 1.85rem; letter-spacing: -0.04em; }
.plan__per { font-family: var(--mono); font-size: 0.75rem; color: var(--faint); margin: 0.25rem 0 1.5rem; }
.plan ul { list-style: none; margin-bottom: 1.75rem; }
.plan li { position: relative; padding: 0.35rem 0 0.35rem 1.2rem; font-family: var(--mono); font-size: 0.8rem; color: var(--sub); }
.plan li::before { content: "+"; position: absolute; left: 0; color: var(--accent); }
.plan .btn { margin-top: auto; justify-content: center; }

/* --- 12. FAQ ------------------------------------------------------------- */
.faq { max-width: 70ch; border-top: 1px solid var(--line-soft); }
.faq details { border-bottom: 1px solid var(--line-soft); }
.faq summary { position: relative; list-style: none; cursor: pointer; padding: 1.25rem 2.5rem 1.25rem 0; font-weight: 600; font-size: 1rem; letter-spacing: -0.02em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0.25rem; top: 1.05rem; font-weight: 400; font-size: 1.35rem; color: var(--faint); }
.faq details[open] summary::after { content: "\2013"; color: var(--accent); }
.faq details p { font-family: var(--mono); font-size: 0.85rem; padding-bottom: 1.25rem; }

/* --- 13. Closer + footer ------------------------------------------------- */
.closer { padding-block: clamp(4.5rem, 13vh, 8rem); }
.closer h2 { max-width: 16ch; margin-top: 0.9rem; }
.closer p { margin-top: 1.1rem; font-family: var(--mono); font-size: 0.9rem; }
.closer .btn { margin-top: 1.9rem; }

.footer { position: relative; border-top: 1px solid var(--line-soft); padding-block: 2.75rem; background: transparent; }
.footer__grid { display: flex; flex-wrap: wrap; gap: 2.5rem; justify-content: space-between; }
.footer nav { display: flex; flex-direction: column; gap: 0.55rem; }
.footer a, .footer p { font-family: var(--mono); font-size: 0.78rem; color: var(--sub); }
.footer a:hover { color: var(--accent); }
.footer__base { margin-top: 2.25rem; font-family: var(--mono); font-size: 0.72rem; color: var(--faint); }

/* --- 14. Entrance -------------------------------------------------------- */
html.intro .logo, html.intro .nav a, html.intro .header-cta, html.intro .burger,
html.intro .badge, html.intro .hero .lede, html.intro .hero-actions, html.intro .stat { opacity: 0; }
html.intro .line > span { transform: translateY(115%); }

/* --- 15. Responsive ------------------------------------------------------ */
@media (min-width: 1001px) {
  .page { padding-left: var(--rail); }
  .header { padding-left: calc(var(--rail) + clamp(1.25rem, 4vw, 3rem)); }
}

@media (max-width: 1000px) {
  .rail { display: none; }
  .scanner { grid-template-columns: 1fr; }
  .scanner__canvas { border-left: 0; border-top: 1px solid var(--line); min-height: 0; }
  .steps { grid-template-columns: 1fr 1fr; }
  .case { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .row { grid-template-columns: 2.5rem 1fr; }
  .row__desc, .row__go { grid-column: 2; }
}

@media (max-width: 860px) {
  .header { grid-template-columns: 1fr auto; }
  .header-cta { display: none; }
  .burger { display: grid; }
  .nav {
    position: fixed; inset: 0; flex-direction: column; justify-content: center; align-items: stretch;
    gap: 0.5rem; padding: 5rem 1.5rem 2rem; background: rgba(12,13,16,0.97);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    opacity: 0; visibility: hidden; transition: opacity .3s ease, visibility .3s ease; z-index: 70;
  }
  body.nav-open .nav { opacity: 1; visibility: visible; }
  body.nav-open { overflow: hidden; }
  .nav a { height: 52px; justify-content: center; font-size: 0.95rem; border-color: var(--line-soft); }
  .steps { grid-template-columns: 1fr; }
  .stats { gap: 1.5rem 2rem; }
  .hero-actions .btn { flex: 1 1 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .rise { opacity: 1; transform: none; }
  .node, .wire { opacity: 1; transform: none; }
  html.intro .logo, html.intro .nav a, html.intro .header-cta, html.intro .burger,
  html.intro .badge, html.intro .hero .lede, html.intro .hero-actions, html.intro .stat { opacity: 1; }
  html.intro .line > span { transform: none; }
}


/* --- 17. Inner pages ------------------------------------------------------ */
.hero--inner { min-height: 74vh; padding-block: 9rem 3rem; }
.hero--inner h1 { font-size: clamp(2.1rem, 3.8vw, 3.5rem); }

.prose p { font-family: var(--mono); font-size: 0.92rem; max-width: 68ch; margin-bottom: 1.1rem; }
.mono { font-family: var(--mono); font-size: 0.9rem; color: var(--sub); }
.note { margin-top: 2rem; font-family: var(--mono); font-size: 0.82rem; color: var(--faint); max-width: 72ch; }
.tag { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); border: 1px solid rgba(255,91,68,0.4); padding: 0.2rem 0.45rem; margin-left: 0.5rem; vertical-align: middle; }

.ticks { list-style: none; }
.ticks li { position: relative; padding: 0.55rem 0 0.55rem 1.6rem; font-family: var(--mono); font-size: 0.86rem; color: var(--sub); border-bottom: 1px solid var(--line-soft); }
.ticks li::before { content: "+"; position: absolute; left: 0; color: var(--accent); }

/* --- 18. Social icons ----------------------------------------------------- */
.social { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1.2rem; }
.social a {
  display: inline-flex; align-items: center; gap: 0.5rem;
  height: 38px; padding: 0 0.8rem;
  border: 1px solid var(--line); color: var(--sub);
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em;
  transition: border-color .25s ease, color .25s ease, background .25s ease;
}
.social a::after { content: attr(data-label); }
.social a:hover { border-color: var(--accent); color: var(--accent); background: rgba(255,91,68,0.06); }
@media (max-width: 480px) {
  .social a::after { display: none; }
  .social a { width: 38px; padding: 0; justify-content: center; }
}

/* --- 19. Form ------------------------------------------------------------- */
.formcard { border: 1px solid var(--line); background: rgba(17,19,24,0.92); padding: clamp(1.4rem, 2.5vw, 2.25rem); }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); margin-bottom: 0.45rem; }
.field input, .field select, .field textarea {
  width: 100%; background: rgba(12,13,16,0.8); color: var(--ink);
  border: 1px solid var(--line); padding: 0.75rem 0.85rem;
  font-family: var(--mono); font-size: 0.88rem; line-height: 1.5;
  transition: border-color .2s ease;
}
.field textarea { resize: vertical; min-height: 7rem; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); outline: none; }
.field select { appearance: none; cursor: pointer; }
.field select option { background: #131519; color: #EDEAE3; }
.formnote { margin-top: 0.9rem; font-family: var(--mono); font-size: 0.74rem; color: var(--faint); }
.formerr { margin-top: 0.9rem; font-family: var(--mono); font-size: 0.8rem; color: #FF8A7A; }
.formdone h3 { color: var(--accent); margin-bottom: 0.6rem; }
.formdone p { font-family: var(--mono); font-size: 0.88rem; }
#f-submit[disabled] { opacity: 0.55; cursor: not-allowed; }


/* --- 20. Case study index ------------------------------------------------- */
.filters { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.25rem; }
.chip {
  font-family: var(--mono); font-size: 0.74rem; color: var(--sub);
  background: transparent; border: 1px solid var(--line);
  padding: 0.45rem 0.8rem; cursor: pointer;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.chip:hover { border-color: rgba(237,234,227,0.4); color: var(--ink); }
.chip.is-on { border-color: var(--accent); color: #FFF4F1; background: var(--accent); }
.chip i { font-style: normal; opacity: 0.55; margin-left: 0.35rem; }
.count { font-family: var(--mono); font-size: 0.78rem; color: var(--faint); margin-bottom: 2rem; }
.count b { color: var(--ink); font-weight: 500; }
.empty { font-family: var(--mono); font-size: 0.85rem; color: var(--faint); padding: 2rem 0; }

.cases { border-top: 1px solid var(--line-soft); }
.csx {
  display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem);
  padding: 2rem 0; border-bottom: 1px solid var(--line-soft);
}
.csx--flag { border-left: 2px solid var(--accent); padding-left: clamp(1rem, 2vw, 1.75rem); }
.csx__n { font-family: var(--mono); font-size: 0.72rem; color: var(--faint); display: block; margin-bottom: 0.5rem; }
.csx .eyebrow { display: block; margin-bottom: 0.6rem; }
.csx h3 { font-size: 1.25rem; margin-bottom: 0.6rem; }
.csx p { font-family: var(--mono); font-size: 0.84rem; }
.tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 1rem; }
.tags .tag { margin: 0; color: var(--faint); border-color: var(--line-soft); }
.csx__res ul { list-style: none; }
.csx__res li { position: relative; padding: 0.4rem 0 0.4rem 1.2rem; font-family: var(--mono); font-size: 0.8rem; color: var(--sub); }
.csx__res li::before { content: ""; position: absolute; left: 0; top: 0.95rem; width: 5px; height: 5px; background: var(--accent); transform: rotate(45deg); }

@media (max-width: 860px) {
  .csx { grid-template-columns: 1fr; gap: 1.25rem; }
}


/* --- 21. Systems (what we build) ------------------------------------------ */
.systems { border-top: 1px solid var(--line-soft); }
#sys-filters { margin-bottom: 1rem; }
.sys {
  display: grid; grid-template-columns: 7rem 1fr 15rem; gap: clamp(1.25rem, 3vw, 3rem);
  padding: clamp(2rem, 4vw, 3.25rem) 0; border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: 6rem;
}
.sys:target { background: rgba(255,91,68,0.04); }
.sys__n { font-family: var(--mono); font-size: 1.6rem; color: var(--faint); display: block; margin-bottom: 0.5rem; letter-spacing: -0.04em; }
.sys__head .eyebrow { display: block; line-height: 1.5; }
.sys__body h3 { font-size: clamp(1.35rem, 2.2vw, 1.85rem); margin-bottom: 0.5rem; }
.sys__line { font-size: 1.02rem; color: var(--accent); margin-bottom: 0.9rem; max-width: 46ch; }
.sys__body p { font-family: var(--mono); font-size: 0.85rem; }
.sys__stats { display: flex; flex-direction: column; gap: 1.1rem; }
.sys__stats dt { font-family: var(--mono); font-size: 1.25rem; color: var(--ink); letter-spacing: -0.03em; }
.sys__stats dd { font-size: 0.76rem; color: var(--faint); margin-top: 0.15rem; }

.tags--big { gap: 0.45rem; margin-top: 0; }
.tags--big .tag { font-size: 0.78rem; padding: 0.5rem 0.9rem; color: var(--sub); border-color: var(--line); }

/* --- 22. Pick grid (pricing) ---------------------------------------------- */
.picks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.pick {
  background: rgba(12,13,16,0.9); padding: clamp(1.4rem, 2.2vw, 1.9rem);
  display: flex; flex-direction: column; transition: background .25s ease;
}
.pick:hover { background: rgba(255,91,68,0.05); }
.pick__n { font-family: var(--mono); font-size: 0.72rem; color: var(--faint); margin-bottom: 0.75rem; }
.pick .eyebrow { display: block; margin-bottom: 0.65rem; }
.pick h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.pick p { font-family: var(--display); font-size: 0.92rem; color: var(--sub); margin-bottom: 1.5rem; }
.pick__stat { margin-top: auto; font-family: var(--mono); font-size: 1.15rem; color: var(--accent); letter-spacing: -0.03em; }
.pick__stat i { display: block; font-style: normal; font-size: 0.72rem; color: var(--faint); margin-top: 0.2rem; letter-spacing: 0; }

/* --- 23. System rows (homepage) ------------------------------------------- */
.row--sys { grid-template-columns: 3rem 15rem 1fr 8rem; }
.row__stat { font-family: var(--mono); font-size: 0.95rem; color: var(--accent); text-align: right; letter-spacing: -0.02em; }

@media (max-width: 1000px) {
  .sys { grid-template-columns: 1fr; gap: 1.25rem; }
  .sys__head { display: flex; align-items: baseline; gap: 0.9rem; }
  .sys__n { margin-bottom: 0; }
  .sys__stats { flex-direction: row; flex-wrap: wrap; gap: 1.5rem; }
  .picks { grid-template-columns: 1fr 1fr; }
  .row--sys { grid-template-columns: 2.5rem 1fr; }
  .row--sys .row__desc, .row--sys .row__stat { grid-column: 2; text-align: left; }
}
@media (max-width: 620px) { .picks { grid-template-columns: 1fr; } }


/* --- 24. Emblem watermark -------------------------------------------------- */
.footer { position: relative; overflow: hidden; }
.watermark {
  position: absolute;
  right: 1.5rem; bottom: 1.5rem;
  width: clamp(96px, 9vw, 132px); height: auto;
  opacity: 0.16;
  pointer-events: none; user-select: none;
  filter: grayscale(1) brightness(1.6);
  transition: opacity .5s ease;
}
.footer:hover .watermark { opacity: 0.3; }
/* No room for it on narrow screens, and it collides with the link columns. */
@media (max-width: 1100px) { .watermark { display: none; } }