/* GCS-tech — site styles (vanilla CSS, no build step) */
:root {
  --ink: #1E2A5A;
  --accent: #1F5FBF;
  --accent-hover: #184C99;
  --bg: #FFFFFF;
  --surface: #F5F6FA;
  --surface-2: #E9ECF4;
  --text: #171A2B;
  --muted: #5B6072;
  --line: #D9DDE8;
  --on-accent: #FFFFFF;
  --chip-live-bg: #DDF3E6; --chip-live-fg: #0F5A2E;
  --chip-beta-bg: #FDEBD0; --chip-beta-fg: #7A4300;
  --chip-dev-bg:  #DCE8FB; --chip-dev-fg:  #163F80;
  --chip-ent-bg:  #E6E3F5; --chip-ent-fg:  #3D2E7A;
  --shadow: 0 1px 2px rgba(23,26,43,.06), 0 8px 24px rgba(23,26,43,.06);
  --radius: 14px;
  --font-ui: "Heebo", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --font-display: "Assistant", "Heebo", system-ui, sans-serif;
  --maxw: 1120px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #E8EAF2;
    --accent: #7FAEF5;
    --accent-hover: #A3C4F8;
    --bg: #0F1424;
    --surface: #171D33;
    --surface-2: #202845;
    --text: #E8EAF2;
    --muted: #A3A8BD;
    --line: #2C3454;
    --on-accent: #0F1424;
    --chip-live-bg: #163B27; --chip-live-fg: #9FE2BA;
    --chip-beta-bg: #4A2F0A; --chip-beta-fg: #F6CF8C;
    --chip-dev-bg:  #1A2E55; --chip-dev-fg:  #AFC9F6;
    --chip-ent-bg:  #2E2653; --chip-ent-fg:  #CFC6F2;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ink: #E8EAF2; --accent: #7FAEF5; --accent-hover: #A3C4F8;
  --bg: #0F1424; --surface: #171D33; --surface-2: #202845;
  --text: #E8EAF2; --muted: #A3A8BD; --line: #2C3454; --on-accent: #0F1424;
  --chip-live-bg: #163B27; --chip-live-fg: #9FE2BA;
  --chip-beta-bg: #4A2F0A; --chip-beta-fg: #F6CF8C;
  --chip-dev-bg:  #1A2E55; --chip-dev-fg:  #AFC9F6;
  --chip-ent-bg:  #2E2653; --chip-ent-fg:  #CFC6F2;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 17px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--ink); line-height: 1.2; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw + .5rem, 3.25rem); letter-spacing: -.01em; }
h2 { font-size: clamp(1.6rem, 3vw + .5rem, 2.25rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
a { color: var(--accent); text-decoration: underline; text-underline-offset: .15em; }
a:hover { color: var(--accent-hover); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
ul { padding-inline-start: 1.25em; }
img, svg { max-width: 100%; }
code { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: .92em; background: var(--surface-2); padding: .1em .35em; border-radius: 4px; }

/* language switching: content is authored twice; html[data-lang] shows one */
html[data-lang="he"] [lang="en"]:not(html) { display: none !important; }
html[data-lang="en"] [lang="he"]:not(html) { display: none !important; }
html[data-lang="en"] body { font-size: 16.5px; }

.skip-link { position: absolute; inset-inline-start: 1rem; top: -4rem; background: var(--accent); color: var(--on-accent); padding: .6rem 1rem; border-radius: 8px; z-index: 100; text-decoration: none; font-weight: 600; }
.skip-link:focus { top: 1rem; }

.wrap { width: min(var(--maxw), 100% - 32px); margin-inline: auto; }

/* header */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; }
.brand .mono { width: 34px; height: 34px; flex: none; }
.nav { display: none; gap: 1.5rem; align-items: center; }
.nav a { color: var(--text); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: .5rem; }
.lang-toggle, .menu-btn { font: inherit; font-weight: 600; background: transparent; color: var(--text); border: 1px solid var(--line); border-radius: 999px; padding: .35rem .8rem; cursor: pointer; display: inline-flex; align-items: center; gap: .35rem; min-height: 40px; }
.lang-toggle:hover, .menu-btn:hover { border-color: var(--accent); color: var(--accent); }
.menu-btn { padding: .35rem .6rem; }
.menu-btn svg { width: 22px; height: 22px; }
.mobile-nav { display: none; border-top: 1px solid var(--line); background: var(--bg); }
.mobile-nav[data-open="true"] { display: block; }
.mobile-nav a { display: block; padding: .9rem 0; color: var(--text); text-decoration: none; font-weight: 500; border-bottom: 1px solid var(--line); }
.mobile-nav a:last-child { border-bottom: 0; }
@media (min-width: 860px) {
  .nav { display: flex; }
  .menu-btn, .mobile-nav { display: none !important; }
}

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; font: inherit; font-weight: 600; text-decoration: none; border-radius: 10px; padding: .75rem 1.25rem; min-height: 48px; border: 1px solid transparent; cursor: pointer; transition: background .15s, color .15s, border-color .15s; }
.btn svg { width: 20px; height: 20px; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-hover); color: var(--on-accent); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-group { display: flex; flex-wrap: wrap; gap: .75rem; }

/* hero */
.hero { padding: clamp(3rem, 8vw, 6rem) 0 clamp(2.5rem, 6vw, 4.5rem); background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%); border-bottom: 1px solid var(--line); }
.hero .wrap { display: grid; gap: 2rem; align-items: center; }
.eyebrow { display: inline-block; font-size: .85rem; font-weight: 600; letter-spacing: .04em; color: var(--accent); margin-bottom: .75rem; text-transform: uppercase; }
html[data-lang="he"] .eyebrow { letter-spacing: 0; text-transform: none; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 56ch; }
.hero-art { display: none; }
@media (min-width: 900px) {
  .hero .wrap { grid-template-columns: 1.3fr 1fr; }
  .hero-art { display: block; }
}
.hero-art svg { width: 100%; height: auto; }

/* sections */
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section.alt { background: var(--surface); }
.section-head { max-width: 62ch; margin-bottom: 2rem; }
.section-head p { color: var(--muted); }

.grid { display: grid; gap: 1.25rem; }
@media (min-width: 640px) { .grid.cols-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid.cols-3 { grid-template-columns: repeat(3, 1fr); } .grid.cols-4 { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 640px) and (max-width: 959px) { .grid.cols-3, .grid.cols-4 { grid-template-columns: repeat(2, 1fr); } }

.card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; display: flex; flex-direction: column; gap: .75rem; box-shadow: var(--shadow); }
.section.alt .card { background: var(--bg); }
.card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: .75rem; }
.card h3 { margin: 0; }
.card p { margin: 0; color: var(--muted); }
.card .card-link { margin-top: auto; padding-top: .5rem; font-weight: 600; text-decoration: none; display: inline-flex; align-items: center; gap: .35rem; }
.card .card-link svg { width: 18px; height: 18px; }
html[data-lang="he"] .card .card-link svg { transform: scaleX(-1); }
.icon-badge { width: 44px; height: 44px; border-radius: 12px; display: inline-grid; place-items: center; background: var(--surface-2); color: var(--accent); flex: none; }
.icon-badge svg { width: 22px; height: 22px; }

.chip { display: inline-flex; align-items: center; gap: .3rem; font-size: .78rem; font-weight: 600; padding: .2rem .6rem; border-radius: 999px; white-space: nowrap; line-height: 1.6; }
.chip.live { background: var(--chip-live-bg); color: var(--chip-live-fg); }
.chip.beta { background: var(--chip-beta-bg); color: var(--chip-beta-fg); }
.chip.dev  { background: var(--chip-dev-bg);  color: var(--chip-dev-fg); }
.chip.ent  { background: var(--chip-ent-bg);  color: var(--chip-ent-fg); }
.tiers { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .25rem; }
.tiers span { font-size: .8rem; border: 1px solid var(--line); border-radius: 6px; padding: .1rem .5rem; color: var(--muted); }

/* product detail blocks */
.detail { scroll-margin-top: 80px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; margin-top: 1.25rem; }
.detail h3 { margin-bottom: .5rem; }
.detail ul { margin: .5rem 0 .75rem; color: var(--text); }
.detail-grid { display: grid; gap: 1.25rem; }
@media (min-width: 860px) { .detail-grid { grid-template-columns: 1fr 1fr; } }

/* principles */
.principles { counter-reset: p; display: grid; gap: 1.25rem; }
@media (min-width: 860px) { .principles { grid-template-columns: repeat(3, 1fr); } }
.principle { position: relative; padding: 1.5rem 1.5rem 1.5rem; border-inline-start: 3px solid var(--accent); background: var(--bg); border-radius: 0 var(--radius) var(--radius) 0; }
html[dir="ltr"] .principle { border-radius: 0 var(--radius) var(--radius) 0; }
html[dir="rtl"] .principle { border-radius: var(--radius) 0 0 var(--radius); }
.principle h3 { font-size: 1.1rem; }
.principle p { color: var(--muted); margin: 0; }

/* contact */
.contact-grid { display: grid; gap: 1.25rem; }
@media (min-width: 860px) { .contact-grid { grid-template-columns: 1.2fr 1fr; } }
.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .9rem; }
.contact-list li { display: flex; align-items: center; gap: .75rem; }
.contact-list svg { width: 20px; height: 20px; color: var(--accent); flex: none; }
.note { font-size: .92rem; color: var(--muted); }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 2rem 0; font-size: .92rem; color: var(--muted); background: var(--surface); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; align-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; list-style: none; margin: 0; padding: 0; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--accent); text-decoration: underline; }

/* legal / subpages */
.page { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
.page .wrap { max-width: 760px; }
.page h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
.page h2 { font-size: 1.35rem; margin-top: 2rem; }
.page .meta { color: var(--muted); font-size: .92rem; margin-bottom: 2rem; }
.back { display: inline-flex; align-items: center; gap: .35rem; text-decoration: none; font-weight: 600; margin-bottom: 1.5rem; }
.back svg { width: 18px; height: 18px; }
html[data-lang="en"] .back svg { transform: scaleX(-1); }
.callout { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem 1.5rem; margin: 1.5rem 0; }
.callout p:last-child { margin-bottom: 0; }
.steps { counter-reset: s; list-style: none; padding: 0; display: grid; gap: 1rem; }
.steps li { position: relative; padding-inline-start: 3rem; }
.steps li::before { counter-increment: s; content: counter(s); position: absolute; inset-inline-start: 0; top: 0; width: 2.1rem; height: 2.1rem; border-radius: 50%; background: var(--accent); color: var(--on-accent); display: grid; place-items: center; font-weight: 700; font-family: var(--font-display); }
table { border-collapse: collapse; width: 100%; margin: 1rem 0 1.5rem; font-size: .95rem; }
th, td { text-align: start; padding: .6rem .75rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--ink); background: var(--surface); }
@media (max-width: 639px) {
  table, tbody, tr, td { display: block; }
  thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  tr { border: 1px solid var(--line); border-radius: 10px; padding: .75rem 1rem; margin-bottom: .75rem; background: var(--surface); }
  td { border: 0; padding: .2rem 0; }
  td:first-child { font-weight: 700; color: var(--ink); font-family: var(--font-display); font-size: 1.05rem; }
  td:last-child { color: var(--muted); font-size: .9rem; }
}
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }