/* =========================================================
   UPSPIRE — AI Infrastructure for Enterprises & Nations
   Aesthetic: sovereign-infrastructure "command console"
   Type: Space Grotesk (display) · IBM Plex Sans (body) · JetBrains Mono (data)
   ========================================================= */

:root {
  /* palette — blue-shifted void, electric brand blue, ion cyan, one amber signal */
  --void:      #060A14;
  --abyss:     #0A1120;
  --panel:     #0D1626;
  --steel:     #16243C;
  --line:      rgba(140, 170, 225, 0.14);
  --line-soft: rgba(140, 170, 225, 0.08);

  --electric:  #2E6BFF;
  --electric-2:#1B3FB0;
  --ion:       #5AC8FA;
  --signal:    #F5B544;   /* used ONLY for impact / ROI numbers */

  --paper:     #EAF0FB;
  --mist:      #9DB0D0;
  --faint:     #6B7C9E;

  --maxw: 1200px;
  --r: 14px;
  --r-lg: 22px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.85);
  --glow: 0 0 0 1px rgba(46, 107, 255, 0.4), 0 18px 50px -20px rgba(46, 107, 255, 0.5);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  background: var(--void);
  color: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  /* faint engineering grid + radial light from top */
  background-image:
    radial-gradient(1100px 620px at 72% -8%, rgba(46, 107, 255, 0.16), transparent 60%),
    radial-gradient(820px 520px at 8% 0%, rgba(90, 200, 250, 0.08), transparent 55%),
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
  background-attachment: fixed, fixed, fixed, fixed;
}

h1, h2, h3 { font-family: "Space Grotesk", sans-serif; font-weight: 600; line-height: 1.04; letter-spacing: -0.02em; }
a { color: inherit; text-decoration: none; }
.mono { font-family: "JetBrains Mono", monospace; }
.accent { color: var(--ion); }
.signal { color: var(--signal); }
.sr-only, .skip-link { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link:focus {
  position: fixed; top: 12px; left: 12px; z-index: 200; width: auto; height: auto; clip: auto;
  background: var(--electric); color: #fff; padding: 10px 16px; border-radius: 8px;
}

:focus-visible { outline: 2px solid var(--ion); outline-offset: 3px; border-radius: 4px; }

/* ---------- buttons ---------- */
.btn {
  --bg: transparent;
  display: inline-flex; align-items: center; gap: 0.5em;
  font-family: "Space Grotesk", sans-serif; font-weight: 500; font-size: 0.95rem;
  padding: 0.72em 1.25em; border-radius: 10px; border: 1px solid transparent;
  cursor: pointer; transition: transform 0.25s var(--ease), background 0.25s, box-shadow 0.25s, border-color 0.25s;
  white-space: nowrap;
}
.btn--solid { background: linear-gradient(180deg, var(--electric), var(--electric-2)); color: #fff; box-shadow: 0 10px 30px -12px rgba(46, 107, 255, 0.7); }
.btn--solid:hover { transform: translateY(-2px); box-shadow: 0 16px 38px -12px rgba(46, 107, 255, 0.85); }
.btn--ghost { border-color: var(--line); color: var(--paper); background: rgba(255, 255, 255, 0.02); }
.btn--ghost:hover { border-color: var(--electric); background: rgba(46, 107, 255, 0.1); transform: translateY(-2px); }
.btn--text { color: var(--mist); padding-left: 0.2em; padding-right: 0.2em; }
.btn--text:hover { color: var(--ion); }
.btn--lg { font-size: 1.02rem; padding: 0.95em 1.6em; }

/* ---------- nav ---------- */
.nav { position: sticky; top: 0; z-index: 100; backdrop-filter: blur(14px); background: rgba(6, 10, 20, 0.72); border-bottom: 1px solid var(--line-soft); }
.nav__inner { max-width: var(--maxw); margin: 0 auto; padding: 0.85rem 1.5rem; display: flex; align-items: center; gap: 1.5rem; }
.brand { display: flex; align-items: center; gap: 0.6rem; flex-shrink: 0; }
.brand__mark { filter: drop-shadow(0 4px 12px rgba(46, 107, 255, 0.5)); }
.brand__word { font-family: "Space Grotesk", sans-serif; font-weight: 700; letter-spacing: 0.12em; font-size: 1.02rem; line-height: 1; display: flex; flex-direction: column; gap: 3px; }
.brand__word i { font-style: normal; font-family: "JetBrains Mono", monospace; font-weight: 400; font-size: 0.5rem; letter-spacing: 0.34em; color: var(--ion); }
.brand__word--lg { font-size: 2rem; letter-spacing: 0.16em; }
.nav__links { display: flex; gap: 1.4rem; margin-left: auto; }
.nav__links a { font-size: 0.92rem; color: var(--mist); transition: color 0.2s; }
.nav__links a:hover { color: var(--paper); }
.nav__actions { display: flex; gap: 0.6rem; }
.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; margin-left: auto; }
.nav__toggle span { width: 24px; height: 2px; background: var(--paper); border-radius: 2px; transition: 0.3s; }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav__mobile { display: flex; flex-direction: column; gap: 0.4rem; padding: 1rem 1.5rem 1.4rem; border-top: 1px solid var(--line-soft); }
.nav__mobile a { padding: 0.55rem 0; color: var(--mist); }
.nav__mobile .btn { margin-top: 0.4rem; justify-content: center; }

/* ---------- layout helpers ---------- */
.section { max-width: var(--maxw); margin: 0 auto; padding: clamp(4rem, 9vw, 7.5rem) 1.5rem; }
.section--panel { max-width: none; background: linear-gradient(180deg, var(--abyss), var(--void)); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.section--panel > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section__head { max-width: 680px; margin-bottom: 3rem; }
.section__index { display: inline-block; color: var(--electric); font-size: 0.72rem; letter-spacing: 0.18em; margin-bottom: 1rem; padding: 0.3em 0.7em; border: 1px solid var(--line); border-radius: 999px; }
.section__title { font-size: clamp(1.9rem, 4.2vw, 3rem); }
.section__lead { color: var(--mist); margin-top: 0.9rem; font-size: 1.06rem; max-width: 56ch; }
.section__foot { margin-top: 2.5rem; }

/* ---------- hero ---------- */
.hero { position: relative; max-width: var(--maxw); margin: 0 auto; padding: clamp(2.5rem, 6vw, 5rem) 1.5rem clamp(2rem, 5vw, 3rem); }
.hero__globe { position: absolute; inset: -10% -25% auto auto; width: 760px; height: 760px; max-width: 80vw; opacity: 0.7; pointer-events: none; z-index: 0; }
.hero__grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 4vw, 3.5rem); align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 0.6em; font-family: "JetBrains Mono", monospace; font-size: 0.8rem; letter-spacing: 0.08em; color: var(--mist); border: 1px solid var(--line); border-radius: 999px; padding: 0.4em 0.9em; margin-bottom: 1.6rem; }
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ion); box-shadow: 0 0 0 4px rgba(90, 200, 250, 0.18); animation: pulse 2.4s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(90, 200, 250, 0); } }
.hero__title { font-size: clamp(2.6rem, 6.2vw, 4.6rem); font-weight: 700; }
.hero__title .accent { background: linear-gradient(120deg, var(--ion), var(--electric)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero__sub { color: var(--mist); font-size: 1.12rem; margin-top: 1.5rem; max-width: 48ch; }
.hero__cta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.8rem; margin-top: 2.2rem; }

/* ---------- SIGNATURE: AI Solution Builder console ---------- */
.builder { border-radius: var(--r-lg); background: linear-gradient(180deg, rgba(22, 36, 60, 0.9), rgba(10, 17, 32, 0.92)); border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; backdrop-filter: blur(6px); }
.builder__chrome { display: flex; align-items: center; justify-content: space-between; padding: 0.7rem 1rem; border-bottom: 1px solid var(--line-soft); background: rgba(0, 0, 0, 0.25); }
.builder__index { font-family: "JetBrains Mono", monospace; font-size: 0.68rem; letter-spacing: 0.16em; color: var(--faint); }
.builder__leds { display: flex; gap: 6px; }
.builder__leds i { width: 9px; height: 9px; border-radius: 50%; background: var(--steel); }
.builder__leds i:first-child { background: var(--electric); }
.builder__leds i:nth-child(2) { background: var(--ion); opacity: 0.7; }
.builder__body { padding: clamp(1.3rem, 2.5vw, 1.9rem); }
.builder__title { font-size: 1.4rem; margin-bottom: 1.1rem; }
.builder__chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.1rem; }
.chip { font-family: "JetBrains Mono", monospace; font-size: 0.76rem; color: var(--mist); background: rgba(46, 107, 255, 0.07); border: 1px solid var(--line); border-radius: 999px; padding: 0.45em 0.85em; cursor: pointer; transition: 0.2s var(--ease); }
.chip:hover, .chip[aria-pressed="true"] { color: #fff; border-color: var(--electric); background: rgba(46, 107, 255, 0.22); transform: translateY(-1px); }
.builder__form { display: flex; flex-direction: column; gap: 0.7rem; }
.builder__form textarea {
  width: 100%; resize: vertical; min-height: 58px; font-family: "IBM Plex Sans", sans-serif; font-size: 0.98rem;
  color: var(--paper); background: rgba(6, 10, 20, 0.7); border: 1px solid var(--line); border-radius: 12px; padding: 0.9rem 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.builder__form textarea::placeholder { color: var(--faint); }
.builder__form textarea:focus { outline: none; border-color: var(--electric); box-shadow: 0 0 0 3px rgba(46, 107, 255, 0.18); }
.builder__go { justify-content: center; }
.builder__go.is-loading { pointer-events: none; opacity: 0.85; }

/* ---------- generated solution ---------- */
.solution { margin-top: 1.4rem; border-top: 1px dashed var(--line); padding-top: 1.4rem; animation: rise 0.5s var(--ease) both; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }
.solution__head { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 1.1rem; }
.solution__tag { font-family: "JetBrains Mono", monospace; font-size: 0.66rem; letter-spacing: 0.22em; color: var(--ion); }
.solution__project { font-size: 1.5rem; }
.solution__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
.solution__block { background: rgba(6, 10, 20, 0.55); border: 1px solid var(--line-soft); border-radius: 12px; padding: 0.85rem 0.95rem; }
.solution__block--wide { grid-column: 1 / -1; }
.solution__block .k { display: block; font-family: "JetBrains Mono", monospace; font-size: 0.64rem; letter-spacing: 0.12em; color: var(--faint); text-transform: uppercase; margin-bottom: 0.4rem; }
.solution__block .v { font-family: "Space Grotesk", sans-serif; font-size: 1.04rem; color: var(--paper); }
.solution__block .v.mono { font-family: "JetBrains Mono", monospace; font-size: 0.95rem; }
.solution__block .v--signal { color: var(--signal); }
.chips-static { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chips-static li { font-family: "JetBrains Mono", monospace; font-size: 0.74rem; color: var(--paper); background: rgba(46, 107, 255, 0.16); border: 1px solid rgba(46, 107, 255, 0.3); border-radius: 7px; padding: 0.32em 0.6em; }
.chips-static--ghost li { background: rgba(255, 255, 255, 0.03); border-color: var(--line); color: var(--mist); }
.solution__cta { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.2rem; }

/* ---------- trust strip ---------- */
.trust { max-width: var(--maxw); margin: 0 auto; padding: 1rem 1.5rem 2rem; }
.trust__intro { color: var(--faint); font-size: 0.78rem; letter-spacing: 0.08em; margin-bottom: 1.2rem; }
.trust__strip { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--r); overflow: hidden; }
.stat { background: rgba(13, 22, 38, 0.6); padding: 1.4rem 1.2rem; }
.stat__num { display: block; font-family: "Space Grotesk", sans-serif; font-weight: 700; font-size: clamp(1.6rem, 3vw, 2.3rem); line-height: 1; letter-spacing: -0.03em; color: #fff; font-variant-numeric: tabular-nums; }
.stat__label { display: block; margin-top: 0.55rem; color: var(--mist); font-size: 0.82rem; }

/* ---------- process pipeline ---------- */
.pipeline { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--r); overflow: hidden; }
.pipeline__step { background: rgba(13, 22, 38, 0.55); padding: 1.5rem 1.3rem; position: relative; transition: background 0.3s; }
.pipeline__step:hover { background: rgba(46, 107, 255, 0.1); }
.pipeline__no { display: inline-block; color: var(--electric); font-size: 0.85rem; font-weight: 700; margin-bottom: 0.7rem; }
.pipeline__step h3 { font-size: 1.04rem; margin-bottom: 0.4rem; }
.pipeline__step p { color: var(--mist); font-size: 0.88rem; }

/* ---------- card grids ---------- */
.cardgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.9rem; }
.cardgrid--3 { grid-template-columns: repeat(3, 1fr); }
.card { background: linear-gradient(180deg, rgba(22, 36, 60, 0.5), rgba(10, 17, 32, 0.5)); border: 1px solid var(--line); border-radius: var(--r); padding: 1.4rem; transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s; position: relative; overflow: hidden; }
.card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(220px 120px at var(--mx, 50%) var(--my, 0%), rgba(46, 107, 255, 0.18), transparent 70%); opacity: 0; transition: opacity 0.3s; pointer-events: none; }
.card:hover { transform: translateY(-4px); border-color: rgba(46, 107, 255, 0.5); box-shadow: var(--shadow); }
.card:hover::after { opacity: 1; }
.card h3 { font-size: 1.12rem; margin-bottom: 0.45rem; }
.card p { color: var(--mist); font-size: 0.9rem; }
.card--tier { display: flex; flex-direction: column; gap: 0.6rem; min-height: 120px; justify-content: center; }
.tier { color: var(--faint); font-size: 0.62rem; letter-spacing: 0.2em; }
.card--tier h3 { font-size: 1.22rem; }

/* ---------- tag lists ---------- */
.taglist { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.taglist--tight { margin: 1.4rem 0 1.8rem; }
.tag { font-family: "Space Grotesk", sans-serif; font-size: 0.95rem; color: var(--paper); background: rgba(255, 255, 255, 0.03); border: 1px solid var(--line); border-radius: 999px; padding: 0.55em 1.1em; transition: 0.25s var(--ease); }
.tag:hover { border-color: var(--electric); color: #fff; background: rgba(46, 107, 255, 0.14); transform: translateY(-2px); }

/* ---------- success cases ---------- */
.cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.case { background: linear-gradient(180deg, rgba(22, 36, 60, 0.5), rgba(10, 17, 32, 0.55)); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.8rem; }
.case__type { color: var(--ion); font-size: 0.74rem; letter-spacing: 0.12em; }
.case__metric { display: flex; flex-direction: column; margin: 1.3rem 0 0.6rem; }
.case__metric b { font-family: "Space Grotesk", sans-serif; font-size: 3.1rem; line-height: 1; color: #fff; font-variant-numeric: tabular-nums; }
.case__metric span { color: var(--mist); font-size: 0.9rem; margin-top: 0.3rem; }
.case__value { color: var(--mist); font-size: 0.95rem; border-top: 1px solid var(--line-soft); padding-top: 0.9rem; margin-top: 0.9rem; }
.case__value b { font-family: "Space Grotesk", sans-serif; }

/* ---------- split (license) ---------- */
.split { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.benefits { list-style: none; padding: 1.6rem; margin: 0; border: 1px solid var(--line); border-radius: var(--r-lg); background: rgba(6, 10, 20, 0.5); display: grid; gap: 0.9rem; }
.benefits li { display: flex; align-items: center; gap: 0.8rem; font-family: "Space Grotesk", sans-serif; font-size: 1.1rem; padding-bottom: 0.9rem; border-bottom: 1px solid var(--line-soft); }
.benefits li:last-child { border-bottom: 0; padding-bottom: 0; }
.benefits li span { color: var(--electric); font-weight: 700; }

/* ---------- partner program ---------- */
.benefits-row { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.6rem; }
.benefits-row span { font-family: "JetBrains Mono", monospace; font-size: 0.78rem; color: var(--mist); border: 1px dashed var(--line); border-radius: 8px; padding: 0.5em 0.9em; }

/* ---------- ecosystem partners ---------- */
.partner { background: linear-gradient(180deg, rgba(22, 36, 60, 0.5), rgba(10, 17, 32, 0.5)); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.6rem; }
.partner__role { color: var(--electric); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; }
.partner h3 { font-size: 1.35rem; margin: 0.7rem 0 0.2rem; }
.partner__loc { color: var(--ion); font-family: "JetBrains Mono", monospace; font-size: 0.8rem; }
.partner ul { list-style: none; padding: 0; margin: 1.1rem 0 0; display: grid; gap: 0.45rem; }
.partner ul li { color: var(--mist); font-size: 0.92rem; padding-left: 1rem; position: relative; }
.partner ul li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 5px; height: 5px; border-radius: 50%; background: var(--electric); }
.network { text-align: center; color: var(--faint); font-size: 0.8rem; letter-spacing: 0.05em; margin-top: 2.2rem; }

/* ---------- meetings ---------- */
.meetings .card--meet { display: flex; flex-direction: column; gap: 0.5rem; align-items: flex-start; }
.meet__len { color: var(--ion); font-size: 0.68rem; letter-spacing: 0.14em; }
.card--meet h3 { font-size: 1.3rem; margin-top: 0.2rem; }
.card--meet p { flex: 1; }
.card--meet .btn { margin-top: 0.8rem; }
.card--feature { border-color: rgba(46, 107, 255, 0.55); box-shadow: var(--glow); background: linear-gradient(180deg, rgba(46, 107, 255, 0.16), rgba(10, 17, 32, 0.6)); }

/* ---------- final cta ---------- */
.finalcta { border-top: 1px solid var(--line-soft); background: radial-gradient(900px 420px at 50% 120%, rgba(46, 107, 255, 0.28), transparent 65%); }
.finalcta__inner { max-width: 820px; margin: 0 auto; padding: clamp(4rem, 9vw, 7rem) 1.5rem; text-align: center; }
.finalcta__inner h2 { font-size: clamp(2.1rem, 5.5vw, 3.6rem); margin: 1.1rem 0 1.4rem; }
.finalcta__lines { display: flex; flex-direction: column; gap: 0.2rem; color: var(--mist); font-family: "Space Grotesk", sans-serif; font-size: 1.2rem; margin-bottom: 2.2rem; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line-soft); max-width: var(--maxw); margin: 0 auto; padding: 3rem 1.5rem; display: grid; grid-template-columns: 1fr auto; gap: 1.5rem 3rem; align-items: center; }
.footer__brand .mono { color: var(--mist); font-size: 0.78rem; letter-spacing: 0.16em; margin-top: 0.4rem; }
.footer__links { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.footer__links a { color: var(--mist); font-size: 0.9rem; }
.footer__links a:hover { color: var(--ion); }
.footer__fine { grid-column: 1 / -1; color: var(--faint); font-size: 0.74rem; letter-spacing: 0.06em; border-top: 1px solid var(--line-soft); padding-top: 1.4rem; }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__globe { inset: -8% -40% auto auto; opacity: 0.4; }
  .cardgrid { grid-template-columns: repeat(2, 1fr); }
  .pipeline { grid-template-columns: repeat(2, 1fr); }
  .trust__strip { grid-template-columns: repeat(2, 1fr); }
  .cases { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .cardgrid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .nav__links, .nav__actions { display: none; }
  .nav__toggle { display: flex; }
  .solution__grid { grid-template-columns: 1fr; }
  .footer { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .cardgrid, .cardgrid--3, .pipeline, .trust__strip { grid-template-columns: 1fr; }
  .hero__title { font-size: clamp(2.3rem, 11vw, 3rem); }
}