/* IT Effectiveness LLC — corporate site. Deliberately its own visual identity, distinct from the AlgoHand
   product brand: a calmer, paper-toned register that reads as a consulting/engineering firm, not a SaaS product. */
:root {
  --bg: #f7f6f2; --bg2: #ffffff; --bg3: #efece4; --line: #ddd8cb; --ink: #1c1a16; --ink2: #5a5648; --ink3: #8a8574;
  --accent: #8a6a3a; --accent-ink: #6b4f26; --ok: #3a7d5c;
  --shadow: 0 1px 2px rgba(20,18,12,.05), 0 20px 50px -28px rgba(20,18,12,.35);
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14130f; --bg2: #1b1912; --bg3: #221f17; --line: #34301f; --ink: #f0ede2; --ink2: #b6b09a; --ink3: #837c66;
    --accent: #d3a25c; --accent-ink: #e6bd80; --ok: #6fbd94;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 20px 50px -28px rgba(0,0,0,.7);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #14130f; --bg2: #1b1912; --bg3: #221f17; --line: #34301f; --ink: #f0ede2; --ink2: #b6b09a; --ink3: #837c66;
  --accent: #d3a25c; --accent-ink: #e6bd80; --ok: #6fbd94;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 20px 50px -28px rgba(0,0,0,.7);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
.hero > *, .grid2 > *, .grid3 > *, .grid4 > *, .band > * { min-width: 0; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 "Inter", "Noto Sans Georgian", -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
h1, h2, h3, h4 { margin: 0; letter-spacing: -.01em; text-wrap: balance; line-height: 1.15; }
h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 650; }
h3 { font-size: 18px; font-weight: 650; }
p { margin: 0; }
a { color: var(--accent-ink); }
.mono { font-family: "IBM Plex Mono", ui-monospace, Consolas, monospace; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent-ink); }
.sub { color: var(--ink2); max-width: 42em; font-size: 17px; margin-top: 10px; }
.muted { color: var(--ink2); }
.small { font-size: 14px; }

/* header */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.brandgroup { display: flex; align-items: center; gap: 14px; min-width: 0; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 700; font-size: 17px;
  font-family: "Inter", "Noto Sans Georgian", sans-serif; flex: none; }
.brand .mark { width: 30px; height: 30px; border-radius: 8px; background: linear-gradient(135deg, var(--accent), var(--accent-ink));
  display: grid; place-items: center; color: #1c1a16; font-weight: 800; font-size: 14px; flex: none; }
.tagline { color: var(--ink3); font-size: 13px; padding-left: 14px; border-left: 1px solid var(--line);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
nav.main { display: flex; gap: 26px; align-items: center; font-family: "Inter", "Noto Sans Georgian", sans-serif; }
nav.main a { color: var(--ink2); text-decoration: none; font-weight: 500; font-size: 15px; }
nav.main a:hover, nav.main a[aria-current="page"] { color: var(--ink); }
nav.main a[aria-current="page"] { font-weight: 700; }
.navtoggle { display: none; background: none; border: 1px solid var(--line); color: var(--ink); border-radius: 8px; padding: 6px 10px;
  font: 14px "Inter", sans-serif; }

/* language dropdown (markup generated by build.py's lang_menu()) */
.langmenu { position: relative; }
.langmenu > button.lang { font: inherit; font-size: 12px; font-weight: 700; letter-spacing: .08em; border: 1px solid var(--line); border-radius: 8px;
  padding: 4px 8px; color: var(--ink3); background: none; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; }
.langmenu > button.lang:hover, .langmenu.open > button.lang { color: var(--ink); border-color: var(--ink3); }
.langmenu > button.lang i { width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent; border-top: 5px solid currentColor; opacity: .7; }
.langmenu ul { display: none; position: absolute; right: 0; top: calc(100% + 8px); margin: 0; padding: 6px; list-style: none; min-width: 170px;
  background: var(--bg2); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); z-index: 40; }
.langmenu.open ul { display: block; }
.langmenu li a { display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 8px 10px; border-radius: 8px; font-size: 14px;
  font-weight: 500; color: var(--ink2); text-decoration: none; }
.langmenu li a:hover { background: var(--bg3); color: var(--ink); }
.langmenu li a[aria-current] { color: var(--ink); font-weight: 650; }
.langmenu li a[aria-current]::after { content: "\2713"; color: var(--ok); margin-left: 4px; }
.langmenu li a small { font-size: 11px; letter-spacing: .08em; color: var(--ink3); }

@media (max-width: 980px) {
  .tagline { display: none; }
}
@media (max-width: 780px) {
  nav.main { display: none; position: absolute; top: 72px; left: 0; right: 0; background: var(--bg2); border-bottom: 1px solid var(--line);
    padding: 16px 24px; flex-direction: column; align-items: flex-start; gap: 14px; }
  nav.main.open { display: flex; }
  .navtoggle { display: inline-block; }
  .langmenu ul { position: static; box-shadow: none; margin-top: 6px; }
}

/* hero + bands */
.hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; padding: 72px 0 56px; }
.hero h1 { font-size: clamp(32px, 4.6vw, 52px); font-weight: 650; line-height: 1.08; }
.hero .lead { font-size: 19px; color: var(--ink2); max-width: 34em; margin-top: 18px; font-family: "Inter", "Noto Sans Georgian", sans-serif; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.btn { display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; padding: 12px 22px; font: 600 15px "Inter", "Noto Sans Georgian", sans-serif;
  text-decoration: none; border: 1px solid var(--line); color: var(--ink); background: var(--bg2); cursor: pointer; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #1c1a16; }
.btn:hover { border-color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.05); }
.plate { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
.chart-deco { display: block; width: 100%; height: auto; }

section { padding: 56px 0; border-top: 1px solid var(--line); }
.hero + .proof { border-top: 1px solid var(--line); padding: 20px 0; color: var(--ink3); font-size: 14px; text-align: center; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--ink2); font-size: 15px; }
.checks { margin: 14px 0 0; padding: 0; list-style: none; color: var(--ink2); font-size: 15px; }
.checks li { padding-left: 22px; position: relative; margin: 7px 0; }
.checks li::before { content: "—"; position: absolute; left: 0; color: var(--accent-ink); }

.band { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.built { display: flex; align-items: flex-start; gap: 18px; }
.built .mark { width: 44px; height: 44px; border-radius: 10px; background: linear-gradient(135deg, #4f8bff, #7b5cff); flex: none;
  display: grid; place-items: center; color: #fff; font-weight: 800; font-family: "Inter", sans-serif; }

.contact-block { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-block dt { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink3); font-family: "Inter", sans-serif; margin-top: 16px; }
.contact-block dt:first-child { margin-top: 0; }
.contact-block dd { margin: 4px 0 0; font-size: 17px; }

footer { border-top: 1px solid var(--line); padding: 32px 0; }
footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
footer .legal { color: var(--ink3); font-size: 13px; }
footer a { color: var(--ink2); text-decoration: none; font-size: 14px; }

@media (max-width: 900px) {
  .contact-block { grid-template-columns: 1fr; }
}
@media (max-width: 780px) {
  .hero, .grid2, .band { grid-template-columns: 1fr; }
  .grid3 { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
}