/* ==========================================================================
   Islandic Systems — design system
   Palette and geometry mirror the VaultComm deck (src/deck_lib.py) so the
   site and the pitch read as one company.
   ========================================================================== */

:root{
  /* surfaces */
  --bg:#0A0E1A;
  --bg-deep:#070A12;
  --surface:#11182B;
  --surface-2:#1A233A;
  --hairline:#25314B;
  --hairline-soft:#1A2236;

  /* brand */
  --accent:#0EA5E9;
  --accent-deep:#075E8A;
  --accent-wash:rgba(14,165,233,.10);
  --amber:#F59E0B;
  --amber-wash:rgba(245,158,11,.10);
  --green:#22C55E;
  --red:#EF4444;

  /* type */
  --white:#F8FAFC;
  --text:#E2E8F0;
  --muted:#94A3B8;
  --faint:#64748B;

  --sans:"Inter","Helvetica Neue",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --wrap:1180px;
  --gutter:24px;
  --radius:14px;
  --radius-sm:10px;

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

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

html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto} }

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

img,svg{max-width:100%}
a{color:inherit;text-decoration:none}

/* ------------------------------------------------------------------ layout */
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(64px,9vw,124px)}
.section--tight{padding-block:clamp(48px,6vw,80px)}
.section--alt{background:linear-gradient(180deg,var(--bg-deep),var(--bg))}
.rule{height:1px;background:var(--hairline-soft);border:0;margin:0}

/* ------------------------------------------------------------------- type */
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:11px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--accent);
  margin:0 0 20px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--accent);flex:none}
.eyebrow--amber{color:var(--amber)}
.eyebrow--amber::before{background:var(--amber)}

h1,h2,h3,h4{color:var(--white);font-weight:600;letter-spacing:-.022em;margin:0}
h1{font-size:clamp(34px,5.4vw,60px);line-height:1.08;letter-spacing:-.03em}
h2{font-size:clamp(27px,3.9vw,44px);line-height:1.14}
h3{font-size:clamp(18px,2vw,21px);line-height:1.3}
h4{font-size:15px;line-height:1.4;letter-spacing:-.01em}

.lede{font-size:clamp(15px,1.55vw,18px);line-height:1.62;color:var(--muted);max-width:62ch;margin:18px 0 0}
.dek{font-size:15px;line-height:1.62;color:var(--muted);max-width:66ch;margin:16px 0 0}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
.sky{color:var(--accent)}
.amber{color:var(--amber)}
.hi{color:var(--white);font-weight:500}
.note{font-size:12.5px;line-height:1.55;color:var(--faint);margin-top:20px}
.mono{font-family:var(--mono)}

/* ---------------------------------------------------------------- buttons */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 20px;border-radius:9px;border:1px solid transparent;
  font-size:14px;font-weight:500;letter-spacing:-.01em;
  cursor:pointer;transition:all .18s var(--ease);
  white-space:nowrap;
}
.btn svg{flex:none;transition:transform .18s var(--ease)}
.btn--primary{background:var(--accent);color:#04131E;font-weight:600}
.btn--primary:hover{background:#38BDF8;transform:translateY(-1px);box-shadow:0 8px 24px -8px rgba(14,165,233,.6)}
.btn--ghost{border-color:var(--hairline);color:var(--text);background:transparent}
.btn--ghost:hover{border-color:var(--accent);color:var(--white);background:var(--accent-wash)}
.btn:hover svg{transform:translateX(3px)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

.link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:500;color:var(--accent);
  transition:gap .18s var(--ease);
}
.link:hover{gap:12px}

/* ----------------------------------------------------------------- header */
.hdr{
  position:sticky;top:0;z-index:60;
  background:rgba(10,14,26,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.hdr.is-stuck{border-bottom-color:var(--hairline-soft)}
.hdr__in{display:flex;align-items:center;gap:20px;height:66px}
.hdr__nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.hdr__nav a{font-size:14px;color:var(--muted);transition:color .16s}
.hdr__nav a:hover,.hdr__nav a[aria-current="page"]{color:var(--white)}
.hdr__cta{margin-left:8px;padding:9px 16px;font-size:13.5px}

.brand{display:flex;align-items:center;gap:11px;color:var(--white)}
.brand__mark{width:26px;height:26px;color:var(--accent);flex:none}
.brand__name{font-size:15.5px;font-weight:600;letter-spacing:-.02em;white-space:nowrap}
.brand__name span{color:var(--muted);font-weight:400}

.burger{
  display:none;margin-left:auto;width:40px;height:40px;
  align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--hairline);border-radius:8px;
  color:var(--text);cursor:pointer;
}

/* ------------------------------------------------------------------- hero */
.hero{position:relative;overflow:hidden;padding-block:clamp(60px,8vw,104px) clamp(64px,9vw,112px)}
.hero__bg{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 480px at 78% 8%,rgba(14,165,233,.15),transparent 62%),
    radial-gradient(700px 420px at 8% 92%,rgba(245,158,11,.06),transparent 60%);
}
.hero__grid{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--hairline-soft) 1px,transparent 1px),
                   linear-gradient(90deg,var(--hairline-soft) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(720px 480px at 50% 0%,#000,transparent 78%);
          mask-image:radial-gradient(720px 480px at 50% 0%,#000,transparent 78%);
}
.hero__in{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(32px,5vw,64px);align-items:center}

.pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 13px 6px 10px;border-radius:999px;
  border:1px solid var(--hairline);background:var(--surface);
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin-bottom:26px;
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--green);flex:none;box-shadow:0 0 0 3px rgba(34,197,94,.16)}
.dot--amber{background:var(--amber);box-shadow:0 0 0 3px rgba(245,158,11,.16)}

/* hero sealed-envelope panel */
.envelope{
  background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);
  overflow:hidden;box-shadow:0 30px 70px -30px rgba(0,0,0,.85);
}
.envelope__bar{
  display:flex;align-items:center;gap:9px;
  padding:11px 16px;border-bottom:1px solid var(--hairline);background:var(--surface-2);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);
}
.envelope__body{padding:18px 16px;font-family:var(--mono);font-size:12px;line-height:1.9}
.env-row{display:flex;gap:12px;color:var(--faint)}
.env-row b{color:var(--muted);font-weight:400;min-width:74px;flex:none}
.env-cipher{
  margin-top:12px;padding:12px;border-radius:8px;
  background:var(--bg-deep);border:1px solid var(--hairline-soft);
  color:var(--accent);word-break:break-all;font-size:11.5px;line-height:1.75;
  min-height:74px;
}
.envelope__foot{
  display:flex;flex-wrap:wrap;gap:8px 18px;padding:13px 16px;
  border-top:1px solid var(--hairline);background:var(--bg-deep);
  font-family:var(--mono);font-size:11px;color:var(--faint);
}
.env-flag{display:flex;align-items:center;gap:7px}
.env-flag b{font-weight:500;color:var(--green)}
.env-flag.is-no b{color:var(--red)}

/* ------------------------------------------------------------------ cards */
.card{
  background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);
  padding:24px;position:relative;transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.card--hover:hover{border-color:var(--accent);transform:translateY(-3px);background:var(--surface-2)}
.card--raised{background:var(--surface-2)}
.card--accent{border-color:var(--accent)}
.card--amber{border-color:var(--amber)}
.card__ico{
  width:38px;height:38px;border-radius:9px;display:grid;place-items:center;
  background:var(--accent-wash);color:var(--accent);margin-bottom:16px;
}
.card--amber .card__ico{background:var(--amber-wash);color:var(--amber)}
.card p{font-size:14px;line-height:1.62;color:var(--muted);margin:10px 0 0}

.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:4px 10px;border-radius:999px;border:1px solid var(--hairline);
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--faint);background:var(--bg-deep);
}
.chip--live{color:var(--green);border-color:rgba(34,197,94,.3)}
.chip--beta{color:var(--accent);border-color:rgba(14,165,233,.3)}
.chip--dev{color:var(--amber);border-color:rgba(245,158,11,.3)}

/* grids */
.grid{display:grid;gap:18px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.grid--pillars{grid-template-columns:repeat(6,1fr)}
.grid--pillars > *{grid-column:span 2}
.grid--pillars > *:nth-child(4),
.grid--pillars > *:nth-child(5){grid-column:span 3}

.head{max-width:70ch;margin-bottom:clamp(34px,4.5vw,54px)}

/* ------------------------------------------------------------------ stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat__v{font-size:clamp(28px,3.4vw,38px);font-weight:600;color:var(--accent);letter-spacing:-.03em;line-height:1}
.stat__l{font-size:13px;line-height:1.5;color:var(--muted);margin-top:10px}

/* --------------------------------------------------------------- listrows */
.rows{border-top:1px solid var(--hairline-soft)}
.row{
  display:grid;grid-template-columns:46px 210px 1fr;gap:20px;align-items:start;
  padding:22px 0;border-bottom:1px solid var(--hairline-soft);
}
.row__n{font-family:var(--mono);font-size:13px;color:var(--accent-deep);font-weight:500;padding-top:2px}
.row__t{font-size:15px;font-weight:600;color:var(--white);letter-spacing:-.01em}
.row__d{font-size:14px;line-height:1.62;color:var(--muted)}

/* modes list (product page) */
.mode{
  display:grid;grid-template-columns:46px 160px 1fr;gap:18px;align-items:center;
  padding:16px 20px;background:var(--surface);border:1px solid var(--hairline);
  border-radius:var(--radius-sm);border-left:3px solid var(--accent);
}
.mode--creator{border-left-color:var(--amber)}
.mode--creator .mode__n{color:var(--amber)}
.mode__n{font-family:var(--mono);font-size:12px;color:var(--accent);font-weight:500}
.mode__t{font-size:15px;font-weight:600;color:var(--white)}
.mode__d{font-size:13px;color:var(--muted);line-height:1.55}

/* ----------------------------------------------------------- architecture */
.arch{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px;align-items:stretch}
.layer{
  background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);
  padding:22px;position:relative;display:flex;flex-direction:column;
}
.layer--blind{border-color:var(--amber)}
.layer__top{height:3px;background:var(--accent);position:absolute;inset:0 0 auto 0;border-radius:var(--radius) var(--radius) 0 0}
.layer--blind .layer__top{background:var(--amber)}
.layer__name{font-size:17px;font-weight:600;color:var(--white);letter-spacing:-.01em}
.layer__sub{font-family:var(--mono);font-size:11px;color:var(--accent);margin-top:5px;letter-spacing:.03em}
.layer--blind .layer__sub{color:var(--amber)}
.layer__list{list-style:none;margin:18px 0 0;padding:0;flex:1}
.layer__list li{font-size:13px;line-height:1.5;color:var(--muted);padding:6px 0 6px 16px;position:relative}
.layer__list li::before{content:"";position:absolute;left:0;top:13px;width:5px;height:1px;background:var(--faint)}
.layer__note{margin-top:18px;padding-top:14px;border-top:1px solid var(--hairline);font-size:13px;font-weight:500;color:var(--text)}

/* ------------------------------------------------------------------ table */
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.cmp{border-collapse:collapse;width:100%;min-width:680px;font-size:14px}
table.cmp th,table.cmp td{padding:13px 12px;text-align:center;border-bottom:1px solid var(--hairline-soft)}
table.cmp th:first-child,table.cmp td:first-child{text-align:left;color:var(--text);min-width:250px}
table.cmp thead th{
  font-family:var(--mono);font-size:11.5px;font-weight:500;letter-spacing:.06em;
  color:var(--muted);border-bottom:1px solid var(--hairline);text-transform:none;
}
table.cmp tbody th{font-weight:400}
table.cmp thead th.us{color:var(--accent)}
table.cmp td.us{background:rgba(14,165,233,.055)}
table.cmp thead th.us{background:rgba(14,165,233,.055);border-radius:8px 8px 0 0}
.m{font-size:15px;line-height:1}
.m--y{color:var(--green)}
.m--p{color:var(--amber)}
.m--n{color:var(--red)}
.legend{display:flex;flex-wrap:wrap;gap:20px;margin-top:20px;font-size:12.5px;color:var(--faint)}
.legend span{display:flex;align-items:center;gap:7px}

/* ------------------------------------------------------------------- flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);padding:22px;position:relative}
.step__n{font-family:var(--mono);font-size:13px;font-weight:500;color:var(--amber);margin-bottom:12px}
.step:nth-child(n+3) .step__n{color:var(--accent)}
.step h4{margin-bottom:8px}
.step p{font-size:13px;line-height:1.58;color:var(--muted);margin:0}

/* ------------------------------------------------------------------- cta */
.cta{
  background:linear-gradient(135deg,var(--surface-2),var(--surface));
  border:1px solid var(--hairline);border-radius:18px;
  padding:clamp(32px,5vw,56px);position:relative;overflow:hidden;
}
.cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 300px at 88% 0%,rgba(14,165,233,.17),transparent 66%);
}
.cta > *{position:relative;z-index:1}

/* ---------------------------------------------------------------- contact */
.contact{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.contact a{display:block}
.contact__l{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.contact__v{font-size:15px;color:var(--white);font-weight:500;word-break:break-word}

/* ----------------------------------------------------------------- footer */
.ftr{border-top:1px solid var(--hairline-soft);padding-block:52px 32px;background:var(--bg-deep)}
.ftr__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.ftr__about{font-size:13.5px;line-height:1.65;color:var(--muted);margin-top:16px;max-width:34ch}
.ftr h5{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin:0 0 14px;font-weight:500}
.ftr ul{list-style:none;margin:0;padding:0}
.ftr li{margin-bottom:9px}
.ftr li a{font-size:13.5px;color:var(--muted);transition:color .16s}
.ftr li a:hover{color:var(--white)}
.ftr__bot{
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--hairline-soft);
  font-size:12.5px;color:var(--faint);
}

/* ----------------------------------------------------------------- reveal */
/* Content is visible by default. Only a page that has confirmed JS is running
   parks it for the reveal, so a blocked or failed script can never blank the
   page. */
.js .rv{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .rv{opacity:1;transform:none;transition:none}
  .btn,.card,.link{transition:none}
}

/* ------------------------------------------------------------ responsive */
@media (max-width:1000px){
  .hero__in{grid-template-columns:1fr;gap:44px}
  .grid--4,.stats{grid-template-columns:repeat(2,1fr)}
  .grid--3,.arch,.flow{grid-template-columns:1fr 1fr}
  .arch .layer:last-child{grid-column:1/-1}
  .grid--pillars{grid-template-columns:repeat(2,1fr)}
  .grid--pillars > *,
  .grid--pillars > *:nth-child(4),
  .grid--pillars > *:nth-child(5){grid-column:span 1}
  .ftr__top{grid-template-columns:1fr 1fr}
  .contact{grid-template-columns:1fr}
}
@media (max-width:720px){
  .hdr__nav{
    display:none;position:absolute;top:66px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:8px var(--gutter) 18px;
    background:var(--bg);border-bottom:1px solid var(--hairline);
  }
  .hdr__nav.is-open{display:flex}
  .hdr__nav a{padding:13px 0;border-bottom:1px solid var(--hairline-soft);font-size:15px}
  .hdr__cta{margin:14px 0 0;padding:13px 18px;border-bottom:0;justify-content:center;font-size:14px}
  .burger{display:flex}
  .grid--2,.grid--3,.grid--4,.grid--pillars,.stats,.arch,.flow{grid-template-columns:1fr}
  .arch .layer:last-child{grid-column:auto}
  .row{grid-template-columns:1fr;gap:8px;padding:20px 0}
  .row__n{padding-top:0}
  .mode{grid-template-columns:1fr;gap:7px;padding:16px}
  .ftr__top{grid-template-columns:1fr;gap:30px}
}

/* -------------------------------------------------- investor additions */
.flow--years .step__n{color:var(--accent)}
.flow--years .step:last-child .step__n{color:var(--amber)}
.flow--years .step:last-child{border-color:rgba(245,158,11,.35)}
.step__x{margin-top:12px;padding-top:12px;border-top:1px solid var(--hairline);font-size:12.5px;line-height:1.5;color:var(--faint)}

.verdict{font-size:clamp(20px,2.4vw,26px);font-weight:600;color:var(--white);letter-spacing:-.02em;margin:6px 0 16px}
.vlist{list-style:none;margin:0;padding:0}
.vlist li{display:flex;gap:10px;padding:7px 0;font-size:13.5px;line-height:1.5;color:var(--muted)}
.vlist li span{flex:none;font-weight:600;width:12px}
.card--accent .vlist li{color:var(--text)}

.stream{display:grid;grid-template-columns:200px 1fr;gap:20px;align-items:start;
  padding:20px;background:var(--surface);border:1px solid var(--hairline);
  border-radius:var(--radius-sm);border-left:3px solid var(--accent)}
.stream--creator{border-left-color:var(--amber)}
.stream__n{font-size:15px;font-weight:600;color:var(--white)}
.stream__k{font-family:var(--mono);font-size:11.5px;color:var(--accent);margin-top:5px;letter-spacing:.04em}
.stream--creator .stream__k{color:var(--amber)}
.stream__d{font-size:13.5px;line-height:1.6;color:var(--muted)}

.founder{display:grid;grid-template-columns:76px 1fr;gap:20px;align-items:start}
.founder__av{width:76px;height:76px;border-radius:50%;display:grid;place-items:center;
  background:var(--surface-2);border:1px solid var(--hairline);
  font-size:23px;font-weight:600;color:var(--accent);letter-spacing:-.02em}

@media (max-width:720px){
  .stream{grid-template-columns:1fr;gap:10px}
  .founder{grid-template-columns:1fr;gap:16px}
}

/* ============================================================ two arms */
.arms{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.arm{
  background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);
  padding:clamp(24px,3vw,34px);display:flex;flex-direction:column;
  border-top:3px solid var(--accent);
}
.arm--venture{border-top-color:var(--amber)}
.arm__k{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.arm--venture .arm__k{color:var(--amber)}
.arm__d{font-size:14.5px;line-height:1.65;color:var(--muted);margin:14px 0 22px}
.arm__list{list-style:none;margin:0 0 24px;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.arm__list li{
  font-size:12.5px;color:var(--muted);padding:5px 11px;
  border:1px solid var(--hairline);border-radius:999px;background:var(--bg-deep);
}
.arm .link{margin-top:auto}

/* ========================================================= service grid */
.svcs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.svc-card{
  background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);
  padding:22px;transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.svc-card:hover{border-color:var(--accent);transform:translateY(-3px);background:var(--surface-2)}
.svc-card__ico{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:var(--accent-wash);color:var(--accent);margin-bottom:15px}
.svc-card h4{font-size:14.5px;line-height:1.35}
.svc-card p{font-size:13px;line-height:1.55;color:var(--muted);margin:9px 0 0}

/* ======================================================= service detail */
.svc{
  display:grid;grid-template-columns:290px 1fr;gap:clamp(24px,4vw,52px);
  padding:clamp(30px,4vw,44px) 0;border-bottom:1px solid var(--hairline-soft);
  scroll-margin-top:90px;
}
.svc:last-child{border-bottom:0}
.svc__n{font-family:var(--mono);font-size:12px;color:var(--accent-deep);letter-spacing:.1em;margin-bottom:14px}
.svc__ico{width:42px;height:42px;border-radius:10px;display:grid;place-items:center;
  background:var(--accent-wash);color:var(--accent);margin-bottom:16px}
.svc__k{font-family:var(--mono);font-size:11.5px;color:var(--accent);margin-top:7px;letter-spacing:.04em}
.svc__d{font-size:14.5px;line-height:1.7;color:var(--muted);margin:0 0 20px;max-width:62ch}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags span{
  font-size:12.5px;color:var(--text);padding:6px 12px;
  border:1px solid var(--hairline);border-radius:7px;background:var(--surface);
}

/* ------------------------------------------------ responsive additions */
@media (max-width:1000px){
  .svcs{grid-template-columns:repeat(2,1fr)}
  .svc{grid-template-columns:1fr;gap:20px}
}
@media (max-width:720px){
  .arms,.svcs{grid-template-columns:1fr}
}