:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #eef5ff;
  --ink: #111827;
  --muted: #64748b;
  --line: #d8e3f0;
  --blue: #2478f2;
  --blue-dark: #145ac2;
  --green: #19aa72;
  --navy: #101b2d;
  --shadow: 0 18px 48px rgba(17, 24, 39, .09);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Malgun Gothic", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

a { color: inherit; text-decoration: none; }

h1, h2, h3, p { margin: 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 34px;
  border-bottom: 1px solid rgba(216, 227, 240, .8);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(145deg, #1d79ff, #76a9ff);
  font-size: 27px;
  font-weight: 900;
  box-shadow: 0 10px 24px rgba(36, 120, 242, .22);
}

.brand strong { display: block; font-size: 18px; }
.brand small { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; }

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 8px;
  color: #334259;
  font-weight: 800;
}

.nav a:hover { background: var(--surface-soft); }

.hero {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 30px;
  padding: 72px 24px 34px;
}

.hero-copy {
  min-height: 430px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 800px;
  margin-top: 14px;
  font-size: 50px;
  line-height: 1.14;
  letter-spacing: 0;
}

.lead {
  max-width: 760px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.lead.small { font-size: 16px; }

.hero-actions, .cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  font-weight: 900;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease;
}

.button.primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 7px 0 var(--blue-dark);
}

.button.secondary {
  color: #203047;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 5px 0 #c8d6e6;
}

.button:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 rgba(20, 90, 194, .7);
}

.hero-note {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.hero-note span {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: #40516b;
  font-size: 13px;
  font-weight: 800;
}

.hero-panel, .product-card, .screen-card, .cta-section, .trust-band, .roadmap-grid div {
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
}

.hero-panel {
  align-self: center;
  border-radius: 20px;
  padding: 24px;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.panel-title.compact { margin-bottom: 16px; }

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(25, 170, 114, .12);
}

.stack-list {
  display: grid;
  gap: 12px;
}

.stack-list div {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  min-height: 54px;
  padding: 12px;
  border: 1px solid #e4ecf5;
  border-radius: 14px;
  background: #fbfdff;
}

.stack-list b { color: var(--blue); }
.stack-list span { color: #334259; font-weight: 800; }

.trust-band {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border-radius: 18px;
}

.trust-band div {
  min-height: 118px;
  padding: 22px;
  background: #fff;
}

.trust-band strong { display: block; font-size: 18px; margin-bottom: 8px; }
.trust-band span { color: var(--muted); line-height: 1.6; font-size: 14px; }

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 54px 24px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.section-head h2 {
  margin-top: 8px;
  font-size: 30px;
  letter-spacing: 0;
}

.section-head p {
  max-width: 540px;
  color: var(--muted);
  line-height: 1.65;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.product-card {
  min-height: 310px;
  padding: 24px;
  border-radius: 18px;
}

.product-card.active {
  border-color: rgba(36, 120, 242, .45);
}

.status {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  color: #fff;
  background: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.status.muted {
  color: #33506f;
  background: #edf4fb;
}

.product-card h3 {
  margin-top: 16px;
  font-size: 22px;
}

.product-card p {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.65;
}

.product-card ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: #32435a;
  line-height: 1.8;
  font-size: 14px;
}

.text-link {
  display: inline-flex;
  margin-top: 16px;
  color: var(--blue);
  font-weight: 900;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: 34px;
  align-items: center;
}

.feature-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.feature-list div {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.feature-list strong { color: var(--blue); }
.feature-list span { color: #40516b; line-height: 1.55; }

.screen-card {
  overflow: hidden;
  border-radius: 18px;
}

.screen-top {
  height: 46px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  background: var(--navy);
}

.screen-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #5f789b;
}

.screen-body { padding: 24px; }
.screen-body strong { font-size: 24px; }
.screen-body p { margin-top: 6px; color: var(--muted); }
.fake-row { height: 42px; margin-top: 20px; border: 1px solid var(--line); border-radius: 8px; background: #f8fbff; }

.fake-list {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.fake-list span {
  height: 24px;
  border-radius: 6px;
  background: linear-gradient(90deg, #eaf2ff, #f8fbff);
}

.fake-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.fake-actions span {
  min-height: 38px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--blue);
  font-weight: 900;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.roadmap-grid div {
  min-height: 170px;
  padding: 24px;
  border-radius: 18px;
}

.roadmap-grid b {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  color: #fff;
  background: var(--blue);
}

.roadmap-grid strong {
  display: block;
  margin-top: 18px;
  font-size: 20px;
}

.roadmap-grid span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.6;
}

.cta-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  margin-bottom: 42px;
  border-radius: 22px;
  background:
    radial-gradient(circle at 100% 0, rgba(36, 120, 242, .12), transparent 40%),
    #fff;
}

.cta-section h2 {
  max-width: 760px;
  font-size: 30px;
  line-height: 1.35;
}

.cta-section p {
  max-width: 720px;
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.7;
}

.footer {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 28px 24px 46px;
  color: var(--muted);
}

.footer strong { color: var(--ink); }
.footer a { color: var(--blue); font-weight: 900; }

@media (max-width: 980px) {
  .hero, .split-section, .cta-section { grid-template-columns: 1fr; }
  .trust-band, .product-grid, .roadmap-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero h1 { font-size: 40px; }
}

@media (max-width: 640px) {
  .site-header { align-items: flex-start; flex-direction: column; padding: 14px 20px; }
  .nav { width: 100%; }
  .nav a { padding: 0 8px; font-size: 14px; }
  .hero { padding-top: 42px; }
  .hero h1 { font-size: 32px; }
  .lead { font-size: 16px; }
  .trust-band, .product-grid, .roadmap-grid { grid-template-columns: 1fr; }
  .section-head { align-items: flex-start; flex-direction: column; }
  .footer { align-items: flex-start; flex-direction: column; }
}