:root {
  --bg: #f6f9ff;
  --panel: #ffffff;
  --card: #f9fbff;
  --primary: #23b6aa;
  --primary-strong: #129f92;
  --accent: #ff9b4a;
  --text: #0f172a;
  --muted: #5b6678;
  --border: #e3e8f3;
  --shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Space Grotesk', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, #ffffff 0%, #f3f6ff 45%, #eef3ff 100%);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.gradient-bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(35, 182, 170, 0.16), transparent 32%),
              radial-gradient(circle at 80% 0%, rgba(255, 155, 74, 0.18), transparent 36%),
              radial-gradient(circle at 70% 70%, rgba(79, 139, 255, 0.16), transparent 44%);
  z-index: -2;
}

.grain {
  position: fixed;
  inset: -50%;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="1600" height="1600" viewBox="0 0 1600 1600"><filter id="n" x="0" y="0"><feTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="2" stitchTiles="stitch"/></filter><rect width="1600" height="1600" filter="url(%23n)" opacity="0.06"/></svg>');
  mix-blend-mode: soft-light;
  pointer-events: none;
  z-index: -1;
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.06);
}

nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text);
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: grid;
  place-items: center;
  color: #0d1224;
  font-weight: 800;
  box-shadow: 0 10px 30px rgba(35, 182, 170, 0.35);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-actions a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-actions a:hover { color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  color: #0d1224;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 12px 40px rgba(35, 182, 170, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 48px rgba(35, 182, 170, 0.32);
  filter: saturate(1.05);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}

.btn-outline:hover {
  background: #f4f7ff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

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

.link:hover { text-decoration: underline; }

.muted { color: var(--muted); }

main { max-width: 1120px; margin: 0 auto; padding: 54px 20px 110px; }

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  align-items: center;
  margin-top: 30px;
}

.hero-card {
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(35, 182, 170, 0.12);
  color: var(--primary-strong);
  font-weight: 600;
  font-size: 13px;
  border: 1px solid rgba(35, 182, 170, 0.18);
}

h1 {
  font-size: clamp(32px, 5vw, 46px);
  margin: 16px 0 10px;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.lead { font-size: 18px; color: var(--muted); margin-bottom: 18px; }

.meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.mockup {
  background: linear-gradient(150deg, #ffffff, #f2f6ff);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7), var(--shadow);
  position: relative;
  overflow: hidden;
  min-height: 320px;
}

.mockup::before, .mockup::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.35;
}

.mockup::before {
  width: 220px; height: 220px;
  background: rgba(35, 182, 170, 0.32);
  top: -40px; right: -60px;
}

.mockup::after {
  width: 180px; height: 180px;
  background: rgba(255, 155, 74, 0.28);
  bottom: -50px; left: -40px;
}

.window {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  position: relative;
  z-index: 1;
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
}

.window .title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--muted);
}

.dots { display: flex; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff7b7b; }
.dot.yellow { background: #ffc36b; }
.dot.green { background: #6bd588; }

.form-grid { display: grid; gap: 12px; }
.field {
  background: #f7f9ff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 12px 10px;
}

.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.field .value { font-weight: 700; letter-spacing: 0.2px; color: var(--text); }

section { margin-top: 72px; }

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.section-title h2 { margin: 0; letter-spacing: -0.2px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.card .tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 155, 74, 0.18);
  color: var(--accent);
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 10px;
}

.card strong { font-size: 18px; display: block; margin-bottom: 8px; color: var(--text); }
.card p { margin: 0; color: var(--muted); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.step {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: var(--shadow);
}

.step-number {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: rgba(35, 182, 170, 0.15);
  color: var(--primary-strong);
  border-radius: 10px;
  font-weight: 700;
  margin-bottom: 10px;
}

.download-card {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
  gap: 16px;
  padding: 22px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.download-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

.download-actions { display: grid; gap: 10px; align-content: center; }

.cta {
  margin-top: 42px;
  padding: 24px;
  background: linear-gradient(135deg, rgba(35, 182, 170, 0.14), rgba(255, 155, 74, 0.16));
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 18px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 14px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.contact-box {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.contact-box code { color: var(--text); font-weight: 700; }
.copy { cursor: pointer; color: var(--primary-strong); font-weight: 700; }
.note { color: var(--muted); font-size: 14px; }

footer {
  margin: 74px auto 28px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  max-width: 1120px;
  padding: 0 20px;
}

@media (max-width: 900px) {
  .download-card { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  nav { padding: 14px 16px; flex-direction: column; align-items: flex-start; }
  .nav-actions { width: 100%; justify-content: flex-start; }
  .hero { margin-top: 18px; }
  main { padding-top: 32px; }
}