:root {
  color-scheme: light;
  --bg: #f5f8fb;
  --bg-soft: #eef6fc;
  --panel: #ffffff;
  --panel-2: #f8fbff;
  --text: #172033;
  --muted: #5d6b7d;
  --line: rgba(33, 75, 115, .14);
  --accent: #168bc4;
  --accent-2: #58c8f3;
  --accent-soft: #e4f6ff;
  --success: #138a73;
  --danger: #b54747;
  --shadow: 0 24px 70px rgba(31, 67, 104, .12);
  --radius: 8px;
  --max: 1180px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 75% 3%, rgba(88, 200, 243, .22), transparent 30rem),
    radial-gradient(circle at 10% 18%, rgba(255, 255, 255, .9), transparent 24rem),
    linear-gradient(180deg, #f7fbff 0%, #eef5fa 48%, #f6f9fc 100%);
  color: var(--text);
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(100% - 32px, var(--max)); margin-inline: auto; }

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(18px);
}
.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: .02em;
}
.brand-mark {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(22, 139, 196, .34);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #e4f6ff, #ffffff);
  color: #126e9d;
  box-shadow: 0 10px 24px rgba(22, 139, 196, .12);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}
.nav-links a:hover { color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(22, 139, 196, .24);
  background: #ffffff;
  color: #115f88;
  font-weight: 750;
  box-shadow: 0 10px 28px rgba(31, 67, 104, .08);
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.btn:hover {
  transform: translateY(-1px);
  background: #f2fbff;
  border-color: rgba(22, 139, 196, .48);
  box-shadow: 0 14px 34px rgba(31, 67, 104, .12);
}
.btn.primary {
  background: linear-gradient(135deg, #168bc4, #58c8f3);
  color: #ffffff;
  border: 0;
  box-shadow: 0 18px 38px rgba(22, 139, 196, .22);
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 720px;
  display: grid;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(247, 251, 255, .98) 0%, rgba(247, 251, 255, .91) 43%, rgba(247, 251, 255, .62) 75%, rgba(247, 251, 255, .84) 100%),
    url("zsid-hero-crm-ai.png") center right / cover no-repeat;
  z-index: -2;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 220px;
  background: linear-gradient(180deg, transparent, #f5f8fb);
  z-index: -1;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 700px) 1fr;
  gap: 48px;
  padding: 86px 0 70px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(22, 139, 196, .22);
  background: rgba(228, 246, 255, .78);
  color: #126e9d;
  font-size: 14px;
  font-weight: 800;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 22px;
  max-width: 820px;
  font-size: clamp(40px, 7vw, 74px);
  line-height: .98;
  letter-spacing: 0;
}
.lead {
  max-width: 680px;
  margin-bottom: 30px;
  color: #3d4f63;
  font-size: clamp(18px, 2vw, 22px);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 34px; }
.trust-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 700px;
}
.metric {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(14px);
  box-shadow: 0 12px 34px rgba(31, 67, 104, .08);
}
.metric strong { display: block; font-size: 24px; line-height: 1.1; }
.metric span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }

section { padding: 86px 0; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 32px;
  margin-bottom: 34px;
}
.section-head h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.06;
}
.section-head p {
  max-width: 390px;
  margin-bottom: 0;
  color: var(--muted);
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.card {
  min-height: 100%;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff, #f8fbff);
  box-shadow: 0 14px 42px rgba(31, 67, 104, .08);
}
.icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border: 1px solid rgba(22, 139, 196, .2);
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
}
.icon svg { width: 22px; height: 22px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { margin-bottom: 10px; font-size: 21px; line-height: 1.2; }
.card p { color: var(--muted); margin-bottom: 0; }

.split {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 22px;
  align-items: start;
}
.panel {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 14px 42px rgba(31, 67, 104, .08);
}
.stack { display: grid; gap: 12px; }
.line-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .78);
}
.check {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  margin-top: 2px;
  border-radius: 999px;
  background: rgba(19, 138, 115, .1);
  color: var(--success);
}
.line-item strong { display: block; margin-bottom: 3px; }
.line-item span { color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #ffffff;
  color: #3d4f63;
  font-size: 14px;
}

.process {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.step {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 14px 42px rgba(31, 67, 104, .07);
}
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: inline-block;
  margin-bottom: 42px;
  color: var(--accent);
  font-weight: 800;
  font-size: 14px;
}
.step h3 { font-size: 20px; margin-bottom: 8px; }
.step p { color: var(--muted); margin-bottom: 0; }
.band {
  background: linear-gradient(135deg, rgba(228, 246, 255, .78), rgba(255, 255, 255, .88));
  border-block: 1px solid var(--line);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, .72fr);
  gap: 28px;
  align-items: start;
}
.contact-copy h2 {
  margin-bottom: 14px;
  max-width: 720px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.06;
}
.contact-copy p {
  max-width: 640px;
  color: var(--muted);
  font-size: 18px;
}
.contact-points {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}
.contact-points span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #31445a;
  font-weight: 700;
}
.contact-points span::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
}
.contact-form {
  padding: 26px;
  border: 1px solid rgba(22, 139, 196, .18);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow);
}
.field { display: grid; gap: 8px; margin-bottom: 16px; }
.field span {
  color: #31445a;
  font-size: 14px;
  font-weight: 800;
}
.field input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid rgba(33, 75, 115, .18);
  border-radius: var(--radius);
  background: #f8fbff;
  color: var(--text);
  font: inherit;
  outline: 0;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.field input:focus {
  border-color: rgba(22, 139, 196, .58);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(88, 200, 243, .16);
}
.form-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}
.form-status {
  min-height: 22px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 14px;
}
.form-status.success { color: var(--success); }
.form-status.error { color: var(--danger); }
.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.faq { display: grid; gap: 10px; }
details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .82);
  overflow: hidden;
  box-shadow: 0 12px 34px rgba(31, 67, 104, .06);
}
summary {
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 800;
}
details p { padding: 0 20px 18px; color: var(--muted); margin: 0; }
.footer {
  padding: 42px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, .68);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer a { color: var(--accent); }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 980px) {
  .nav-links { display: none; }
  .hero { min-height: auto; }
  .hero-grid, .split, .contact-layout { grid-template-columns: 1fr; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section-head { display: block; }
  .section-head p { margin-top: 14px; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 24px, var(--max)); }
  .hero::before {
    background:
      linear-gradient(180deg, rgba(247, 251, 255, .95) 0%, rgba(247, 251, 255, .82) 52%, rgba(247, 251, 255, .98) 100%),
      url("zsid-hero-crm-ai.png") center / cover no-repeat;
  }
  .hero-grid { padding: 58px 0 52px; }
  section { padding: 58px 0; }
  .trust-row, .grid, .process { grid-template-columns: 1fr; }
  .card, .panel, .step, .contact-form { padding: 20px; }
  .hero-actions .btn,
  .contact-form .btn { width: 100%; }
}