/* Niyati-Spark · Phase-1 Marketing Site (no CTA)
   Premium multi-page theme using logo palette
*/

:root{
  --bg0: #070A12;
  --bg1: #0B1020;
  --paper: rgba(255,255,255,.82);
  --card: rgba(255,255,255,.72);
  --card2: rgba(255,255,255,.62);
  --text: #0B1220;
  --muted: rgba(11,18,32,.70);
  --muted2: rgba(11,18,32,.55);
  --line: rgba(15,23,42,.14);

  /* Brand accents (logo palette) */
  --magenta: #C64CA0;
  --teal: #76ADB4;
  --purple: #943976;
  --orange: #EB8457;
  --yellow: #F7C868;

  --shadow: 0 18px 48px rgba(5,10,24,.20);
  --shadow2: 0 10px 30px rgba(5,10,24,.14);
  --radius: 22px;

  --container: min(1120px, calc(100% - 44px));
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  position: relative;
  overflow-x: hidden;
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  line-height: 1.55;
  background:
    radial-gradient(1200px 700px at 10% 10%, rgba(198,76,160,.22), transparent 55%),
    radial-gradient(900px 600px at 80% 15%, rgba(118,173,180,.22), transparent 55%),
    radial-gradient(900px 650px at 60% 85%, rgba(247,200,104,.18), transparent 55%),
    linear-gradient(180deg, #FFFFFF 0%, #F7FAFF 45%, #F5F7FB 100%);
}
/* Premium aurora background */
body::before{
  content:"";
  position: fixed;
  inset: -20vh -10vw;
  z-index: -2;
  pointer-events:none;
  background:
    radial-gradient(680px 520px at 15% 20%, rgba(198,76,160,.18), transparent 60%),
    radial-gradient(720px 560px at 85% 18%, rgba(118,173,180,.18), transparent 60%),
    radial-gradient(760px 640px at 70% 85%, rgba(247,200,104,.16), transparent 60%),
    radial-gradient(720px 620px at 25% 85%, rgba(235,132,87,.12), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 80%);
  filter: blur(0px);
}

body::after{
  content:"";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events:none;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,.55), transparent 40%),
    radial-gradient(circle at 80% 10%, rgba(255,255,255,.35), transparent 35%),
    radial-gradient(circle at 70% 80%, rgba(255,255,255,.25), transparent 45%);
  mix-blend-mode: soft-light;
}

a{ color: inherit; }
h1,h2,h3,h4{ line-height: 1.12; margin: 0 0 10px; }
h1{ font-size: clamp(38px, 4.2vw, 60px); letter-spacing: -0.03em; }
h2{ font-size: clamp(28px, 3.2vw, 38px); letter-spacing: -0.02em; }
h3{ font-size: 20px; }
.h4{ font-size: 13px; text-transform: uppercase; letter-spacing: .14em; color: var(--muted2); margin-top: 14px; }

p{ margin: 0 0 12px; }
.lead{ font-size: 18px; color: var(--muted); max-width: 62ch; }
.muted{ color: var(--muted); }
.tiny{ font-size: 12px; color: var(--muted2); }

.container{ width: var(--container); margin: 0 auto; position: relative; z-index: 1; }

.skip-link{
  position:absolute; left:-999px; top:10px;
  background:#000; color:#fff;
  padding:10px 12px; border-radius: 10px;
}
.skip-link:focus{ left: 12px; z-index: 1000; }

/* Topbar */
.topbar{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.62);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(15,23,42,.10);
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
}

.brand{
  display:flex;
  gap: 12px;
  align-items:center;
  text-decoration:none;
}
.brand img{
  width:44px; height:44px;
  border-radius: 14px;
  background: rgba(255,255,255,.6);
  border: 1px solid rgba(148,57,118,.18);
  box-shadow: 0 10px 24px rgba(148,57,118,.12);
}
.brand__text{ display:flex; flex-direction:column; line-height:1.06; }
.brand__name{ font-weight: 900; letter-spacing: -0.01em; }
.brand__tag{ font-size: 12px; color: var(--muted2); }

.nav{
  display:flex;
  gap: 10px;
  align-items:center;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav__link{
  text-decoration:none;
  color: var(--muted);
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: rgba(255,255,255,.50);
}
.nav__link:hover{
  color: var(--text);
  border-color: rgba(118,173,180,.35);
  background: rgba(118,173,180,.10);
}
.nav__link.is-active{
  color: #0B1220;
  border-color: rgba(198,76,160,.40);
  background:
    linear-gradient(90deg, rgba(198,76,160,.14), rgba(118,173,180,.12));
}

/* Layout */
.main{ padding-bottom: 24px; }
.section{ padding: 62px 0; }
.section__head{ margin-bottom: 18px; max-width: 82ch; }
.divider{
  height: 1px;
  background: rgba(15,23,42,.12);
  margin: 22px 0;
}

.hero{
  padding-top: 58px;
  padding-bottom: 38px;
}
.hero__grid{
  position: relative;
  isolation: isolate;
  display:grid;
  gap: 22px;
  grid-template-columns: 1.25fr .85fr;
  align-items: start;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(198,76,160,.12);
  border: 1px solid rgba(198,76,160,.18);
  color: rgba(122,44,96,.95);
  font-weight: 800;
  letter-spacing: .02em;
  margin-bottom: 12px;
}
.eyebrow::before{
  content:"";
  width:10px; height:10px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--teal), var(--magenta));
  box-shadow: 0 10px 24px rgba(198,76,160,.18);
}

.hero__meta{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.pill{
  padding: 8px 11px;
  border-radius: 999px;
  border: 1px solid rgba(15,23,42,.10);
  background: rgba(255,255,255,.62);
  color: rgba(11,18,32,.72);
  font-size: 13px;
}
/* Decorative hero art (SVG) inside panels */
.heroPanel{ position: relative; overflow: hidden; }
.heroArt{
  position:absolute;
  right:-30px;
  top:-28px;
  width: 560px;
  max-width: 72vw;
  aspect-ratio: 1 / 1;
  z-index: 0;
  pointer-events:none;
  opacity: .95;
  filter: drop-shadow(0 18px 40px rgba(15,23,42,.10));
}
.heroArt svg{ width:100%; height:100%; display:block; }
.heroPanel > *{ position: relative; z-index: 1; }

/* Premium panel */
.panel{
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  background:
    linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.62));
  border: 1px solid rgba(148,57,118,.14);
  position: relative;
  overflow: hidden;
  min-height: 340px;
}
.panel::before{
  content:"";
  position:absolute;
  inset:-30%;
  background:
    radial-gradient(420px 260px at 35% 35%, rgba(198,76,160,.18), transparent 60%),
    radial-gradient(420px 260px at 70% 65%, rgba(118,173,180,.18), transparent 60%),
    radial-gradient(420px 260px at 65% 30%, rgba(247,200,104,.14), transparent 60%);
  filter: blur(6px);
}
.panel > *{ position: relative; z-index: 1; }

.panel__title{
  font-weight: 900;
  margin-bottom: 10px;
  letter-spacing: .02em;
}
.pipeline{
  margin: 0;
  padding: 0;
  list-style: none;
  display:flex;
  flex-direction: column;
  gap: 10px;
}
.pipeline li{
  display:grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: start;
}
.dot{
  width: 12px;
  height: 12px;
  border-radius: 999px;
  margin-top: 5px;
  background: linear-gradient(180deg, var(--teal), var(--magenta));
  box-shadow: 0 8px 18px rgba(198,76,160,.20);
}

/* Cards */
.grid{ display:grid; gap: 16px; }
.grid--2{ grid-template-columns: 1fr 1fr; }

.cards{
  display:grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.cards--2{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cards--stack{ grid-template-columns: 1fr; }

.card{
  border-radius: var(--radius);
  padding: 16px;
  border: 1px solid transparent;

  /* gradient border trick */
  background:
    linear-gradient(rgba(255,255,255,.88), rgba(255,255,255,.88)) padding-box,
    linear-gradient(135deg,
      rgba(118,173,180,.42),
      rgba(198,76,160,.35),
      rgba(247,200,104,.26)
    ) border-box;

  box-shadow: 0 10px 26px rgba(15,23,42,.08);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.card:hover{
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(15,23,42,.12);
}
.card.soft{ background: var(--card2); }
.card .icon{
  width: 34px; height: 34px;
  border-radius: 14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border: 1px solid rgba(15,23,42,.10);
  background: rgba(255,255,255,.60);
  margin-bottom: 10px;
}
.card--magenta .icon{ background: rgba(198,76,160,.12); border-color: rgba(198,76,160,.18); }
.card--teal .icon{ background: rgba(118,173,180,.14); border-color: rgba(118,173,180,.20); }
.card--orange .icon{ background: rgba(235,132,87,.14); border-color: rgba(235,132,87,.20); }
.card--yellow .icon{ background: rgba(247,200,104,.18); border-color: rgba(247,200,104,.22); }
.card--purple .icon{ background: rgba(148,57,118,.12); border-color: rgba(148,57,118,.18); }

.card--magenta::after,
.card--teal::after,
.card--orange::after,
.card--yellow::after,
.card--purple::after{
  content:"";
  position:absolute;
  inset:auto -30% -40% -30%;
  height: 170px;
  filter: blur(18px);
  opacity: .75;
}
.card--magenta::after{ background: radial-gradient(closest-side, rgba(198,76,160,.20), transparent 70%); }
.card--teal::after{ background: radial-gradient(closest-side, rgba(118,173,180,.22), transparent 70%); }
.card--orange::after{ background: radial-gradient(closest-side, rgba(235,132,87,.20), transparent 70%); }
.card--yellow::after{ background: radial-gradient(closest-side, rgba(247,200,104,.20), transparent 70%); }
.card--purple::after{ background: radial-gradient(closest-side, rgba(148,57,118,.18), transparent 70%); }

.callout{
  background: linear-gradient(180deg, rgba(247,200,104,.22), rgba(235,132,87,.12));
  border: 1px solid rgba(235,132,87,.18);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 10px 22px rgba(235,132,87,.10);
}
.callout__title{ font-weight: 900; margin-bottom: 8px; }

.list{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.list li{ margin: 8px 0; }

.steps{ display:grid; gap: 12px; }
.step{
  display:grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  align-items: start;
  background: var(--card2);
  border: 1px solid rgba(15,23,42,.10);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow2);
}
.step__n{
  width: 36px;
  height: 36px;
  border-radius: 14px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight: 900;
  color: rgba(91,29,75,.95);
  background: linear-gradient(180deg, rgba(198,76,160,.16), rgba(118,173,180,.12));
  border: 1px solid rgba(198,76,160,.18);
}

/* Page tiles */
.tiles{
  display:grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.tile{
  text-decoration:none;
  display:block;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(15,23,42,.10);
  background: rgba(255,255,255,.62);
  box-shadow: var(--shadow2);
  position: relative;
  overflow: hidden;
}
.tile:hover{ transform: translateY(-1px); }
.tile__k{ font-weight: 900; margin-bottom: 6px; }
.tile__d{ color: var(--muted); margin: 0; }
.tile::after{
  content:"";
  position:absolute;
  inset:auto -30% -50% -30%;
  height: 200px;
  filter: blur(18px);
  opacity: .70;
  background:
    radial-gradient(closest-side, rgba(198,76,160,.18), transparent 70%),
    radial-gradient(closest-side, rgba(118,173,180,.18), transparent 70%);
}

/* Section divider wave */
.wave{
  height: 56px;
  overflow: hidden;
  opacity: .75;
}
.wave svg{ width: 100%; height: 100%; display:block; }

.footer{
  border-top: 1px solid rgba(15,23,42,.10);
  padding: 34px 0 48px;
  background: rgba(255,255,255,.70);
}
.footer__grid{
  display:grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 18px;
}
.footer__brand{ font-weight: 900; margin-bottom: 8px; }
.footer__title{ font-weight: 900; margin-bottom: 8px; }
.footer__list{ list-style:none; padding:0; margin:0; }
.footer__list li{ margin: 8px 0; color: var(--muted); }
.footer__list b{ color: var(--text); font-weight: 800; }

@media (max-width: 980px){
  .hero__grid{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tiles{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--2{ grid-template-columns: 1fr; }
  .footer__grid{ grid-template-columns: 1fr; }
}
@media (max-width: 520px){
  .cards{ grid-template-columns: 1fr; }
  .tiles{ grid-template-columns: 1fr; }
  .topbar__inner{ align-items:flex-start; }
  .nav{ justify-content:flex-start; }
}
/* Section wave divider */
.wave{
  height: 42px;
  margin: -18px 0 10px;
  opacity: .9;
}
.wave svg{ width:100%; height:100%; display:block; }