/* GtroT — shared design system.
   Brand: green #27AE60 (parent), purple #6A0DAD (Research), yellow #F2C94C (Solutions).
   Edit here, then run scripts/sync-shared.sh to push into every site. */

:root {
  /* brand ramps — redefined per theme, referenced through --accent */
  --green:        #17753F;
  --green-bright: #27AE60;
  --purple:       #6A0DAD;
  --yellow:       #F2C94C;
  --on-accent:    #F8FAF7;

  /* neutrals, biased green */
  --ground:    #EDF1EC;
  --surface:   #F8FAF7;
  --surface-2: #E1E8DF;
  --ink:       #0D1610;
  --ink-2:     #465448;
  --ink-3:     #74847A;
  --line:      #CBD5C9;
  --line-2:    #B2C0B1;

  --accent:      var(--green);
  --accent-wash: color-mix(in srgb, var(--accent) 11%, transparent);

  --font-display: "Archivo", "Noto Sans Georgian", system-ui, sans-serif;
  --font-body:    "Newsreader", "Noto Serif Georgian", Georgia, serif;
  --font-mono:    "IBM Plex Mono", "Noto Sans Georgian", ui-monospace, monospace;

  --rail:   10rem;
  --gutter: clamp(1.25rem, 4vw, 3.25rem);
  --maxw:   76rem;
  --ease:   cubic-bezier(.2,.6,.2,1);
}

/* the Research arm swaps the accent to purple; everything else follows */
:root[data-arm="research"] { --accent: var(--purple); }

:root[data-lang="ka"] {
  --font-display: "Noto Sans Georgian", "Archivo", system-ui, sans-serif;
  --font-body:    "Noto Serif Georgian", "Newsreader", Georgia, serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --green:        #35C776;
    --green-bright: #27AE60;
    --purple:       #B77BEA;
    --yellow:       #F2C94C;
    --on-accent:    #06120A;
    --ground:    #0A0F0B;
    --surface:   #111811;
    --surface-2: #18211A;
    --ink:       #E7EEE7;
    --ink-2:     #9AAA9E;
    --ink-3:     #6E7D72;
    --line:      #212C23;
    --line-2:    #2F3E32;
  }
}

:root[data-theme="dark"] {
  --green:        #35C776;
  --green-bright: #27AE60;
  --purple:       #B77BEA;
  --yellow:       #F2C94C;
  --on-accent:    #06120A;
  --ground:    #0A0F0B;
  --surface:   #111811;
  --surface-2: #18211A;
  --ink:       #E7EEE7;
  --ink-2:     #9AAA9E;
  --ink-3:     #6E7D72;
  --line:      #212C23;
  --line-2:    #2F3E32;
}

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--on-accent); }
a { color: inherit; }
img, svg { max-width: 100%; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 1px; }

.skip-link {
  position: absolute; left: -9999px; top: .5rem;
  background: var(--accent); color: var(--on-accent);
  padding: .6rem 1rem; font-family: var(--font-mono); font-size: .75rem; z-index: 99;
}
.skip-link:focus { left: var(--gutter); }

/* ---------- primitives ---------- */

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.rule { border: 0; border-top: 1px solid var(--line); margin: 0; }

.mono {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
:root[data-lang="ka"] .mono { text-transform: none; letter-spacing: .05em; }

.display {
  font-family: var(--font-display);
  font-weight: 700;
  font-stretch: 108%;
  letter-spacing: -.02em;
  line-height: 1.03;
  text-wrap: balance;
  margin: 0;
}
:root[data-lang="ka"] .display { font-stretch: normal; letter-spacing: -.005em; line-height: 1.18; }

.section {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding-block: clamp(3.5rem, 8vw, 6rem);
}
.section__rail { display: flex; flex-direction: column; gap: .4rem; }
.section__rail > :last-child { color: var(--ink-2); }

.section__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-stretch: 104%;
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  line-height: 1.1;
  letter-spacing: -.015em;
  margin: 0 0 1rem;
}

.lede { font-size: clamp(1.0625rem, 1.6vw, 1.3125rem); line-height: 1.55; color: var(--ink-2); max-width: 34em; margin: 0; }
.prose { max-width: 36em; display: flex; flex-direction: column; gap: 1rem; }
.prose p { margin: 0; }

@media (max-width: 60rem) {
  .section { grid-template-columns: 1fr; gap: 1rem; }
  .section__rail { flex-direction: row; flex-wrap: wrap; gap: 1rem; align-items: baseline; }
}

/* ---------- header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner { display: flex; align-items: center; gap: 1.25rem 1.75rem; min-height: 4.5rem; flex-wrap: wrap; }

.brand { display: inline-flex; align-items: center; text-decoration: none; margin-inline-end: auto; }
.brand__lockup { display: block; height: 1.9rem; width: auto; }
@media (max-width: 34rem) { .brand__lockup { height: 1.5rem; } }

.nav { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; }
.nav a {
  font-family: var(--font-mono); font-size: .75rem; letter-spacing: .06em;
  text-decoration: none; color: var(--ink-2);
  padding-block: .35rem; border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
.nav a.is-cross { color: var(--accent); }
.nav a.is-cross::after { content: "↗"; margin-inline-start: .3em; }

@media (max-width: 44rem) {
  .site-header__inner { row-gap: .5rem; padding-block: .6rem; }
  .nav { order: 3; width: 100%; gap: 1rem; }
  .langtoggle { order: 2; }
}

.langtoggle { display: inline-flex; border: 1px solid var(--line-2); border-radius: 999px; overflow: hidden; background: var(--surface); }
.langtoggle button {
  appearance: none; border: 0; background: transparent; color: var(--ink-3);
  font-family: var(--font-mono); font-size: .6875rem; letter-spacing: .1em;
  padding: .4rem .7rem; cursor: pointer;
  transition: background .18s var(--ease), color .18s var(--ease);
}
.langtoggle button:hover { color: var(--ink); }
.langtoggle button[aria-pressed="true"] { background: var(--accent); color: var(--on-accent); }

/* ---------- buttons + pills ---------- */

.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-mono); font-size: .75rem; letter-spacing: .08em;
  text-decoration: none; padding: .75rem 1.15rem; border: 1px solid var(--accent);
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.btn--solid { background: var(--accent); color: var(--on-accent); }
.btn--solid:hover { background: var(--ink); border-color: var(--ink); color: var(--ground); }
.btn--ghost { color: var(--ink); border-color: var(--line-2); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

.pill {
  display: inline-flex; align-items: center; gap: .4rem;
  font-family: var(--font-mono); font-size: .625rem; letter-spacing: .1em; text-transform: uppercase;
  padding: .25rem .55rem; border: 1px solid currentColor; border-radius: 999px; white-space: nowrap;
  align-self: flex-start;
}
:root[data-lang="ka"] .pill { text-transform: none; letter-spacing: .04em; }
.pill--live  { color: var(--green); background: color-mix(in srgb, var(--green) 11%, transparent); }
.pill--beta  { color: var(--ink); background: var(--yellow); border-color: transparent; }
.pill--early { color: var(--ink-3); }
.pill--pub   { color: var(--purple); background: color-mix(in srgb, var(--purple) 12%, transparent); }

/* ---------- rows (products / publications) ---------- */

.rows { display: flex; flex-direction: column; border-top: 1px solid var(--line); }

.row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: .75rem clamp(1.5rem, 4vw, 3rem);
  padding-block: 1.75rem;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.row::before {
  content: ""; position: absolute; inset-block: 0; inset-inline-start: calc(var(--gutter) * -.5);
  width: 2px; background: var(--accent); opacity: 0; transition: opacity .2s var(--ease);
}
.row:hover::before { opacity: 1; }

.row__head { display: flex; flex-direction: column; gap: .5rem; align-items: flex-start; }
.row__name {
  font-family: var(--font-display); font-weight: 700; font-stretch: 106%;
  font-size: clamp(1.375rem, 2.4vw, 1.75rem); line-height: 1.1; letter-spacing: -.015em; margin: 0;
}
.row__kicker { color: var(--ink-2); font-size: .9375rem; line-height: 1.5; margin: 0; }
.row__body { display: flex; flex-direction: column; gap: .9rem; }
.row__body p { margin: 0; color: var(--ink-2); }
.row__meta { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.5rem; }
.row__link { font-family: var(--font-mono); font-size: .75rem; letter-spacing: .06em; color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; align-self: flex-start; }
.row__link:hover { border-bottom-color: var(--accent); }
.row__year { font-variant-numeric: tabular-nums; }

@media (max-width: 46rem) { .row { grid-template-columns: 1fr; } }

/* ---------- facts ---------- */

.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.fact { background: var(--ground); padding: 1rem 1.1rem; display: flex; flex-direction: column; gap: .3rem; }
.fact__value { font-family: var(--font-display); font-weight: 700; font-stretch: 104%; font-size: 1.375rem; line-height: 1.1; font-variant-numeric: tabular-nums; }

/* ---------- cross-site callout ---------- */

.callout {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 2rem; justify-content: space-between;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--accent-wash);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
}
.callout__text { display: flex; flex-direction: column; gap: .4rem; max-width: 38em; }
.callout__title { font-family: var(--font-display); font-weight: 700; font-stretch: 104%; font-size: 1.25rem; margin: 0; letter-spacing: -.01em; }

/* ---------- footer ---------- */

.site-footer { border-top: 1px solid var(--line); padding-block: 2.5rem 3.5rem; }
.site-footer__inner { display: flex; flex-wrap: wrap; gap: 1.75rem 3rem; align-items: flex-start; justify-content: space-between; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--accent); }
.footer-col { display: flex; flex-direction: column; gap: .5rem; }
.footer-col a { font-family: var(--font-mono); font-size: .8125rem; }
.footer-mark { height: 1.5rem; width: auto; opacity: .8; }

/* ---------- reveal ---------- */

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}