:root {
  --bg: #fbfdff;
  --surface: #ffffff;
  --muted: #6b7280;
  --accent: #1a73e8;
  /* google-like blue */
  --accent-2: #4f46e5;
  --glass: rgba(255, 255, 255, 0.6);
  --radius: 12px;
  --container: 1200px;
  --soft-shadow: 0 6px 20px rgba(22, 28, 37, 0.08);
  --elevation: 0 12px 40px rgba(22, 28, 37, 0.12);
  font-synthesis: none;
}

/* Reset + base */
* {
  box-sizing: border-box
}

html,
body {
  height: 100%
}

body {
  margin: 0;
  font-family: Roboto, Inter, system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial;
  background: linear-gradient(180deg, #f7fbff 0%, var(--bg) 100%);
  color: #0f1724;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  font-weight: 400;
}

/* container */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  backdrop-filter: blur(6px);
  background: transparent;
  position: sticky;
  top: 0;
  z-index: 40;
  padding: 18px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-circle {
  width: 44px;
  height: 44px;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: Inter;
  box-shadow: var(--soft-shadow);
  position: relative;
  overflow: hidden;
}
.logo-img {
  width: 110%;
  height: 110%;
}

.brand-title {
  font-weight: 700;
  display: block
}

.brand-sub {
  display: block;
  font-size: 13px;
  color: var(--muted)
}

.nav a {
  margin-left: 18px;
  text-decoration: none;
  color: inherit;
  font-weight: 500
}

.btn-outline {
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 36, 0.08);
  background: white;
  box-shadow: var(--soft-shadow);
  text-decoration: none;
}

/* HERO */
.hero {
  padding: 64px 0
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 32px;
  align-items: center
}

.hero-title {
  font-family: Inter;
  font-size: 36px;
  line-height: 1.05;
  margin: 0 0 16px
}

.hero-lead {
  color: var(--muted);
  font-size: 16px;
  margin-bottom: 20px
}

.hero-ctas {
  display: flex;
  gap: 12px;
  align-items: center
}

.btn-primary {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 12px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: white;
  text-decoration: none;
  font-weight: 600;
  box-shadow: var(--elevation);
}

.btn-primary.large {
  padding: 14px 28px;
  font-size: 16px
}

.btn-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600
}

.trust-row {
  display: flex;
  gap: 18px;
  margin-top: 18px;
  list-style: none;
  padding: 0
}

.trust-row li {
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 14px
}

/* HERO CARD / device mock */
.hero-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.85), rgba(248, 250, 252, 0.85));
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--elevation);
  border: 1px solid rgba(15, 23, 36, 0.04)
}

.device-mock {
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
  background: white;
  border-radius: 12px;
  overflow: hidden
}

.device-top {
  height: 14px;
  background: linear-gradient(90deg, #f3f6ff, #fff);
  padding: 6px 10px;
  display: flex;
  gap: 8px
}

.device-top .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e2e8f0
}

.device-body {
  padding: 18px
}

.device-row {
  display: flex;
  gap: 12px;
  margin-bottom: 12px
}

.device-item {
  flex: 1;
  background: #f8fafc;
  border-radius: 10px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start
}

.item-title {
  font-weight: 600;
  font-size: 13px;
  color: #0f1724
}

.toggle input {
  display: none
}

.toggle label {
  background: #0f1724;
  color: white;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 13px
}

.slider input[type=range] {
  width: 100%
}

.btn-small {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid rgba(15, 23, 36, 0.06);
  background: white
}

/* SERVICES */
.section-title {
  font-family: Inter;
  font-size: 22px;
  margin: 0 0 8px
}

.section-sub {
  color: var(--muted);
  margin: 0 0 24px
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px
}

.card {
  background: var(--surface);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--soft-shadow);
  transition: transform .22s ease, box-shadow .22s ease
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--elevation)
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(90deg, #eef5ff, #f6f9ff);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  font-size: 22px;
  color: var(--accent-2)
}

.card h3 {
  margin: 0 0 6px
}

.card p {
  color: var(--muted);
  margin: 0 0 12px
}

.card-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none
}

/* HOW */
.how {
  padding: 48px 0
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px
}

.how-step {
  background: linear-gradient(180deg, #fff, #fbfdff);
  border-radius: 12px;
  padding: 18px;
  box-shadow: var(--soft-shadow)
}

.step-num {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 12px
}

/* Projects */
.projects-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px
}

.project-card {
  border-radius: 12px;
  overflow: hidden;
  background: white;
  box-shadow: var(--soft-shadow)
}

.project-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  display: block
}

.project-body {
  padding: 12px
}

/* CTA Hero */
.cta-hero {
  margin-top: 36px;
  padding: 36px 0;
  background: linear-gradient(90deg, #eef8ff, #f8faff);
  border-radius: 12px
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px
}

.cta-actions {
  display: flex;
  gap: 12px;
  align-items: center
}

/* Footer */
.site-footer {
  margin-top: 48px;
  padding: 28px 0;
  background: white;
  border-top: 1px solid rgba(15, 23, 36, 0.03)
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px
}

/* Responsive */
@media (max-width:980px) {
  .hero-grid {
    grid-template-columns: 1fr
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px
  }

  .nav a {
    margin-left: 8px
  }
}