/* ===========================================================
   Continuous Software — shared stylesheet
   Brand system derived from aangine.com
   =========================================================== */

:root {
  /* Core brand */
  --purple: #793AFF;
  --purple-50: #9B6BFF;
  --purple-900: #3A0E99;
  --coral: #FF8154;
  --coral-50: #FFB599;
  --green: #00C896;
  --blue: #2EA3F2;

  /* Gradients */
  --gradient-text: linear-gradient(135deg, #793AFF 0%, #FF8154 100%);
  --gradient-cta: linear-gradient(135deg, #793AFF 0%, #9B6BFF 100%);
  --gradient-coral: linear-gradient(135deg, #FF8154 0%, #FFB599 100%);
  --gradient-soft: linear-gradient(180deg, #FAFAFE 0%, #F4F1FA 100%);

  /* Surfaces */
  --bg-0: #FAFAFE;
  --bg-1: #F4F1FA;
  --bg-2: #EDE8F5;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-solid: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.6);

  /* Text */
  --text-0: #110825;
  --text-1: #4A3A65;
  --text-2: #7A6A95;

  /* Lines */
  --border: rgba(121, 58, 255, 0.10);
  --border-strong: rgba(121, 58, 255, 0.20);

  /* Shape + motion */
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 2px 10px rgba(58, 14, 153, 0.05);
  --shadow: 0 12px 40px rgba(58, 14, 153, 0.10);
  --shadow-lg: 0 24px 70px rgba(58, 14, 153, 0.16);

  --maxw: 1180px;
  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --logo: url('../images/cs_logo.png');
  --logo-white: url('../images/cs_logo_white.png');
  --logo-xs: url('../images/cs_logo_xs.png');
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-0);
  color: var(--text-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ---------- Layout helpers ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section--tight { padding: 64px 0; }
.center { text-align: center; }
.grad-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 18px;
}

h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; font-weight: 700; }
h1 { font-size: clamp(2.4rem, 5vw, 3.9rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
h3 { font-size: 1.25rem; }

.lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--text-1); }
.muted { color: var(--text-2); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font);
  font-size: 1rem; font-weight: 600;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .25s;
}
.btn-primary {
  background: var(--gradient-cta);
  color: #fff;
  box-shadow: 0 10px 28px rgba(121, 58, 255, 0.32);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 38px rgba(121, 58, 255, 0.42); }
.btn-ghost {
  background: var(--bg-card-solid);
  color: var(--text-0);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--purple-50); }
.btn-coral {
  background: var(--gradient-coral);
  color: #3a1404;
  box-shadow: 0 10px 28px rgba(255, 129, 84, 0.30);
}
.btn-coral:hover { transform: translateY(-2px); }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 250, 254, 0.82);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 70px;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 700; font-size: 1.18rem; letter-spacing: -0.02em; }
.brand .logo-mark {
  width: 30px; height: 30px; border-radius: 9px;
  background: var(--gradient-cta);
  display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 1rem;
  box-shadow: 0 6px 16px rgba(121,58,255,.35);
}
.nav-logo {
    width:176px; height:56px;
    background: var(--logo) no-repeat center/contain;
    cursor:pointer;
    transition: background-image 0.01s;
}
#nav-logo-footer {
  background: var(--logo-white) no-repeat center/contain;
}
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a {
  font-size: 0.96rem; font-weight: 500; color: var(--text-1);
  transition: color .2s; position: relative;
}
.nav-links a:hover { color: var(--text-0); }
.nav-links a.active { color: var(--purple); font-weight: 600; }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; font-size: 1.5rem; color: var(--text-0); }

#home-page .lnk-home,
#aangine-page .lnk-aangine,
#company-page .lnk-company,
#contact-page .lnk-contact,
#demo-page .lnk-demo,
#company-page .lnk-company,
#products-page .lnk-products{
  color: var(--purple);
  font-weight: 600;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 92px 0 84px;
  background:
    radial-gradient(900px 460px at 78% -8%, rgba(255,129,84,0.16), transparent 60%),
    radial-gradient(820px 520px at 10% 6%, rgba(121,58,255,0.18), transparent 58%),
    var(--gradient-soft);
  overflow: hidden;
}
.hero h1 { margin-bottom: 22px; max-width: 16ch; }
.hero .lead { max-width: 56ch; margin-bottom: 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg-card-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .3s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--border-strong); }
.card .ico {
  width: 50px; height: 50px; border-radius: 13px;
  display: grid; place-items: center; font-size: 1.5rem;
  margin-bottom: 18px;
  background: var(--bg-1);
}
.card h3 { margin-bottom: 9px; }
.card p { color: var(--text-1); font-size: 0.98rem; }

.tag {
  display: inline-block; font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 5px 11px; border-radius: 100px;
  background: rgba(121,58,255,0.09); color: var(--purple);
}
.tag.coral { background: rgba(255,129,84,0.13); color: #d85a26; }
.tag.green { background: rgba(0,200,150,0.13); color: #008d6a; }

/* feature list with check bullets */
.checks { list-style: none; display: grid; gap: 11px; margin-top: 8px; }
.checks li { position: relative; padding-left: 30px; color: var(--text-1); font-size: 0.98rem; }
.checks li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 20px; height: 20px; border-radius: 6px;
  background: rgba(0,200,150,0.14); color: var(--green);
  display: grid; place-items: center; font-size: 0.72rem; font-weight: 800;
}

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat { text-align: center; padding: 26px 14px; }
.stat .num { font-size: clamp(2.2rem, 4vw, 3rem); font-weight: 800; background: var(--gradient-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat .lbl { color: var(--text-2); font-size: 0.95rem; margin-top: 4px; }

/* ---------- Split feature rows ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.split + .split { margin-top: 70px; }
.visual {
  border-radius: var(--radius-lg);
  min-height: 280px;
  background: var(--gradient-soft);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: grid; place-items: center;
  padding: 28px;
  position: relative; overflow: hidden;
}
.visual .glyph { font-size: 4.4rem; filter: drop-shadow(0 10px 20px rgba(121,58,255,.22)); }
.visual-ss {
  min-height: unset;
  padding: 0;
}

/* logos strip */
.logos { display: flex; flex-wrap: wrap; gap: 14px 30px; justify-content: center; align-items: center; }
.logos .pill {
  font-weight: 600; color: var(--text-2); font-size: 0.98rem;
  padding: 9px 18px; border-radius: 100px;
  background: var(--bg-card-solid); border: 1px solid var(--border);
}

/* integration columns */
.intg-col h4 { font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--purple); margin-bottom: 14px; }
.intg-col ul { list-style: none; display: grid; gap: 9px; }
.intg-col li { color: var(--text-1); font-size: 0.97rem; }

/* ---------- CTA band ---------- */
.cta-band {
  border-radius: var(--radius-lg);
  padding: 60px;
  text-align: center;
  background:
    radial-gradient(600px 300px at 80% 0%, rgba(255,129,84,0.22), transparent 60%),
    var(--gradient-cta);
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.cta-band h2 { color: #fff; margin-bottom: 14px; }
.cta-band p { color: rgba(255,255,255,0.9); max-width: 50ch; margin: 0 auto 28px; }
.cta-band .btn-ghost { background: #fff; border-color: #fff; }

/* ---------- Forms ---------- */
.form-grid { display: grid; gap: 16px; }
.field label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-1); margin-bottom: 6px; }
.field input, .field textarea, .field select {
  width: 100%; font-family: var(--font); font-size: 1rem;
  padding: 12px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: #fff; color: var(--text-0);
}
.field input:focus, .field textarea:focus, .field select:focus { outline: 2px solid var(--purple-50); border-color: transparent; }

/* ---------- Footer ---------- */
.site-footer { background: #150B2E; color: #cabbe6; padding: 64px 0 30px; margin-top: 0; }
.site-footer a { color: #cabbe6; transition: color .2s; }
.site-footer a:hover { color: #fff; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 36px; }
.footer-top h5 { color: #fff; font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 16px; }
.footer-top ul { list-style: none; display: grid; gap: 10px; font-size: 0.95rem; }
.footer-brand .brand { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 0.95rem; max-width: 34ch; color: #a293c4; }
.offices { font-size: 0.9rem; color: #a293c4; line-height: 1.9; }
.footer-certs {
  margin-top: 44px; padding-top: 26px; border-top: 1px solid rgba(255,255,255,0.10);
  display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between;
}
.cert-chip {
  background: #fff; border-radius: 12px; padding: 10px 16px;
  display: flex; align-items: center; justify-content: center;
}
.cert-badge { height: 78px; width: auto; display: block; }
.cert-eu { height: 58px; width: auto; display: block; }
@media (max-width: 640px) {
  .footer-certs { justify-content: center; }
  .cert-eu { height: 44px; }
}
.footer-bottom {
  margin-top: 26px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,0.10);
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  font-size: 0.86rem; color: #8c7cb0;
}

/* section heading block */
.sec-head { max-width: 60ch; margin: 0 auto 52px; text-align: center; }
.sec-head .lead { margin-top: 14px; }

/* alt background section */
.bg-soft { background: var(--gradient-soft); }
.bg-band { background: var(--bg-1); }

/* page hero (interior pages) */
.page-hero {
  padding: 70px 0 56px;
  background:
    radial-gradient(700px 360px at 85% -20%, rgba(255,129,84,0.14), transparent 60%),
    radial-gradient(700px 420px at 5% -10%, rgba(121,58,255,0.16), transparent 58%),
    var(--gradient-soft);
}
.page-hero h1 { max-width: 18ch; margin-bottom: 18px; }
.page-hero .lead { max-width: 60ch; }

/* form changes */
.form-card {
  padding: 4px;
}
/* responsive */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column; gap: 18px;
    position: absolute; top: 70px; left: 0; right: 0;
    background: var(--bg-0); padding: 22px 24px; border-bottom: 1px solid var(--border);
  }
  .section { padding: 64px 0; }
  .cta-band { padding: 42px 24px; }
  #btn-demo { padding: 8px;}
}
@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr; }
}

@media (max-width: 400px) {
  #nav-logo-header {
    width: 90px;
    background: var(--logo-xs) no-repeat center/contain;
  }
}