/* ============================================================
   Kriyantrix AI — shared stylesheet
   Kriya (action) × Yantra (instrument): AI that thinks, then acts.
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --ink:        #0A0B16;   /* base background, deep indigo-black */
  --ink-2:      #0D0F1F;   /* alternating section */
  --surface:    #12142A;   /* glassy panels */
  --line:       rgba(139, 108, 255, 0.16);
  --line-soft:  rgba(180, 190, 230, 0.08);

  --cyan:       #35F0CE;
  --violet:     #8B6CFF;
  --blue:       #4C7DFF;

  --text:       #EDEFFA;
  --muted:      #9BA2C6;
  --muted-2:    #6E76A0;

  --plasma:     linear-gradient(120deg, var(--cyan) 0%, var(--violet) 52%, var(--blue) 100%);
  --plasma-soft: linear-gradient(120deg, rgba(53,240,206,.16), rgba(139,108,255,.16), rgba(76,125,255,.16));

  --glow-cyan:  0 0 40px rgba(53,240,206,.28);
  --glow-violet:0 0 48px rgba(139,108,255,.30);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body:    "Inter", system-ui, sans-serif;
  --font-mono:    "Space Mono", ui-monospace, monospace;

  --maxw: 1200px;
  --radius: 18px;
  --radius-sm: 12px;

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

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: hidden; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  max-width: 100%;
}
/* Let grid/flex children shrink below their content width instead of overflowing */
.hero-copy, .yantra-stage, .bio, .demo-aside, .sol .body, .card, .metric { min-width: 0; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.08; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }

/* ---------- Ambient background ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60vw 60vw at 78% -8%, rgba(139,108,255,.18), transparent 60%),
    radial-gradient(48vw 48vw at 8% 0%, rgba(53,240,206,.10), transparent 55%),
    radial-gradient(70vw 50vw at 50% 120%, rgba(76,125,255,.12), transparent 60%);
  pointer-events: none;
}

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.section { padding: 104px 0; position: relative; }
.section--tight { padding: 72px 0; }
.section--alt { background: linear-gradient(180deg, transparent, rgba(13,15,31,.6) 12%, rgba(13,15,31,.6) 88%, transparent); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--plasma); }

.section-head { max-width: 680px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(30px, 4.4vw, 46px); }
.section-head p { color: var(--muted); margin-top: 18px; font-size: 18px; }

.grad-text {
  background: var(--plasma);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-mono);
  font-size: 14px; letter-spacing: .02em;
  padding: 14px 24px; border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.btn .arw { transition: transform .25s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

.btn-primary {
  background: var(--plasma);
  color: #06070F;
  font-weight: 700;
  box-shadow: 0 8px 30px rgba(76,125,255,.28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(139,108,255,.42); }

.btn-ghost {
  background: rgba(255,255,255,.02);
  border-color: var(--line);
  color: var(--text);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: rgba(139,108,255,.5); box-shadow: var(--glow-violet); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 60;
  transition: background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(10,11,22,.72);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-family: var(--font-display); font-weight: 700; font-size: 20px; letter-spacing: -.02em; }
.brand .logo { height: 46px; width: auto; filter: drop-shadow(0 0 10px rgba(76,125,255,.45)); }
.footer .brand .logo { height: 40px; }

.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a { font-size: 15px; color: var(--muted); transition: color .2s var(--ease); position: relative; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 100%; height: 1px; background: var(--plasma);
}
.nav-cta { display: inline-flex; align-items: center; gap: 20px; }

.nav-toggle { display: none; background: none; border: 0; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; transition: transform .3s var(--ease), opacity .3s var(--ease); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 72px 0 96px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(40px, 6.4vw, 76px); letter-spacing: -.03em; }
.hero h1 .line { display: block; }
.hero p.lead { color: var(--muted); font-size: clamp(17px, 2.1vw, 20px); margin-top: 26px; max-width: 540px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 38px; }
.hero-meta { margin-top: 40px; display: flex; gap: 30px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 12.5px; color: var(--muted-2); letter-spacing: .06em; }
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: var(--glow-cyan); }

/* ---------- Yantra signature ---------- */
.yantra-stage { position: relative; display: grid; place-items: center; aspect-ratio: 1; }
.yantra-stage .halo {
  position: absolute; inset: 6%; border-radius: 50%;
  background: radial-gradient(circle, rgba(139,108,255,.22), transparent 62%);
  filter: blur(24px);
}
.yantra { width: 100%; max-width: 460px; }
.yantra .spin { transform-origin: 200px 200px; animation: spin 64s linear infinite; }
.yantra .spin-rev { transform-origin: 200px 200px; animation: spin 92s linear infinite reverse; }
.yantra .node { animation: pulse 3.4s var(--ease) infinite; transform-origin: center; }
.yantra .node:nth-child(2n) { animation-delay: .5s; }
.yantra .node:nth-child(3n) { animation-delay: 1.1s; }
.yantra .core { animation: coreglow 3.4s var(--ease) infinite; transform-origin: 200px 200px; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%,100% { opacity: .4; } 50% { opacity: 1; } }
@keyframes coreglow { 0%,100% { opacity: .8; transform: scale(1); } 50% { opacity: 1; transform: scale(1.08); } }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.012));
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: var(--plasma-soft);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .3s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: 0 24px 60px rgba(0,0,0,.4); }
.card:hover::before { opacity: 1; }

.card .tag {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .16em;
  color: var(--cyan); border: 1px solid var(--line);
  padding: 4px 10px; border-radius: 6px; display: inline-block; margin-bottom: 20px;
}
.card .ico { width: 46px; height: 46px; margin-bottom: 18px; color: var(--violet); }
.card h3 { font-size: 21px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15.5px; }
.card .more { margin-top: 18px; font-family: var(--font-mono); font-size: 13px; color: var(--text); display: inline-flex; gap: 7px; opacity: .0; transform: translateY(4px); transition: .3s var(--ease); }
.card:hover .more { opacity: 1; transform: translateY(0); }

/* ---------- Metrics strip ---------- */
.metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.metric { border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 34px 30px; background: rgba(255,255,255,.015); }
.metric .k { font-family: var(--font-display); font-size: clamp(38px,5vw,56px); line-height: 1; letter-spacing: -.03em; }
.metric .k .grad-text { display: inline; }
.metric .l { font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-top: 14px; }
.metric .d { color: var(--muted-2); font-size: 14.5px; margin-top: 10px; }

/* ---------- Logos / experience ---------- */
.logos { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 40px; }
.logos .lm {
  font-family: var(--font-display); font-weight: 700; font-size: 24px; letter-spacing: -.02em;
  color: var(--muted); opacity: .72; transition: color .25s var(--ease), opacity .25s var(--ease);
}
.logos .lm:hover { color: var(--text); opacity: 1; }

/* ---------- Solution detail rows ---------- */
.sol { display: grid; grid-template-columns: 320px 1fr; gap: 48px; padding: 56px 0; border-top: 1px solid var(--line-soft); }
.sol:first-of-type { border-top: 0; }
.sol .aside .tag { font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em; color: var(--cyan); }
.sol .aside h3 { font-size: clamp(26px,3vw,34px); margin: 14px 0 20px; }
.sol .aside .ico { width: 58px; height: 58px; color: var(--violet); }
.sol .body { display: grid; gap: 22px; align-content: start; }
.sol .step { display: grid; grid-template-columns: 108px 1fr; gap: 20px; align-items: baseline; }
.sol .step .st { font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); padding-top: 3px; }
.sol .step .sc { color: var(--muted); }
.sol .step .sc b { color: var(--text); font-weight: 600; font-family: var(--font-body); }

/* ---------- About ---------- */
.founder { display: grid; grid-template-columns: 300px 1fr; gap: 56px; align-items: start; }
.portrait { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/5; border: 1px solid var(--line); background: linear-gradient(160deg, rgba(139,108,255,.16), rgba(53,240,206,.10)); display: grid; place-items: center; }
.portrait .glyph { width: 108px; height: 108px; filter: drop-shadow(0 0 22px rgba(139,108,255,.55)); animation: spin 88s linear infinite; }
.portrait .ring { position: absolute; inset: 0; }
.founder .bio h2 { font-size: clamp(30px,4vw,44px); }
.founder .bio p { color: var(--muted); margin-top: 20px; font-size: 17.5px; }
.creds { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; margin-top: 32px; }
.cred { border: 1px solid var(--line-soft); border-radius: var(--radius-sm); padding: 20px; }
.cred .t { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); }
.cred .v { margin-top: 8px; font-family: var(--font-display); font-weight: 500; font-size: 17px; }
.cred .s { color: var(--muted-2); font-size: 14px; margin-top: 3px; }

.timeline { margin-top: 40px; display: grid; gap: 2px; }
.tl { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 18px 0; border-top: 1px solid var(--line-soft); }
.tl .co { font-family: var(--font-display); font-weight: 700; font-size: 19px; }
.tl .ro { color: var(--muted); font-size: 15px; }

/* ---------- Demo form ---------- */
.demo-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.demo-aside h1 { font-size: clamp(34px,5vw,54px); }
.demo-aside p { color: var(--muted); margin-top: 20px; font-size: 18px; }
.demo-points { margin-top: 34px; display: grid; gap: 16px; }
.demo-points li { list-style: none; display: grid; grid-template-columns: 26px 1fr; gap: 12px; color: var(--muted); }
.demo-points .ck { width: 22px; height: 22px; color: var(--cyan); margin-top: 2px; }
.demo-contact { margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--line-soft); display: grid; gap: 12px; font-family: var(--font-mono); font-size: 14px; }
.demo-contact a { color: var(--text); }
.demo-contact span { color: var(--muted-2); }

.form-card { background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.014)); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 36px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 9px; }
.field input, .field select, .field textarea {
  width: 100%; background: rgba(10,11,22,.6); border: 1px solid var(--line); border-radius: 10px;
  color: var(--text); font-family: var(--font-body); font-size: 16px; padding: 13px 15px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: var(--muted-2); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 3px rgba(139,108,255,.18); }
.field textarea { resize: vertical; min-height: 108px; }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%239BA2C6' stroke-width='2'%3E%3Cpath d='M2 4l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-card .btn-primary { width: 100%; justify-content: center; margin-top: 8px; }
.form-note { font-family: var(--font-mono); font-size: 12px; color: var(--muted-2); margin-top: 16px; text-align: center; }
.form-status { display: none; text-align: center; padding: 44px 20px; }
.form-status.show { display: block; }
.form-status .big { font-family: var(--font-display); font-size: 26px; margin-bottom: 12px; }
.form-status p { color: var(--muted); }

/* ---------- CTA band ---------- */
.cta-band { position: relative; border: 1px solid var(--line); border-radius: 24px; padding: 64px 48px; text-align: center; overflow: hidden; background: linear-gradient(120deg, rgba(53,240,206,.06), rgba(139,108,255,.09), rgba(76,125,255,.06)); }
.cta-band h2 { font-size: clamp(30px,4.4vw,48px); }
.cta-band p { color: var(--muted); margin: 18px auto 32px; max-width: 520px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line-soft); padding: 64px 0 40px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.footer .brand { margin-bottom: 18px; }
.footer .tag { color: var(--muted); max-width: 320px; font-size: 15px; }
.footer h4 { font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 18px; font-weight: 400; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.footer a { color: var(--muted); font-size: 15px; transition: color .2s var(--ease); }
.footer a:hover { color: var(--text); }
.footer-bottom { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line-soft); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 12.5px; color: var(--muted-2); }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 8px; }
  .yantra-stage { order: -1; max-width: 380px; margin-inline: auto; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .sol { grid-template-columns: 1fr; gap: 24px; }
  .founder { grid-template-columns: 1fr; gap: 32px; }
  .portrait { max-width: 260px; }
  .demo-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  .section { padding: 72px 0; }
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: block; }
  .nav.open .nav-links {
    display: flex; position: absolute; top: 74px; left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 12px 24px 24px;
    background: rgba(10,11,22,.96); backdrop-filter: blur(18px); border-bottom: 1px solid var(--line);
  }
  .nav.open .nav-links a { padding: 15px 0; border-bottom: 1px solid var(--line-soft); width: 100%; }
  .grid-3, .grid-2, .metrics { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 44px 24px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .eyebrow { letter-spacing: .16em; font-size: 11.5px; flex-wrap: wrap; }
  .hero { padding-top: 40px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
}