:root {
  --bg: #0f1115;
  --bg-alt: #151820;
  --text: #e8eaed;
  --muted: #a8b0bd;
  --accent: #00a8ff;
  --accent-2: #005eff;
  --card: #1c2028;
  --border: #2a2f39;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  color: var(--text);
  background: radial-gradient(1200px 600px at 80% -10%, rgba(0,168,255,0.08), transparent 60%) var(--bg);
  line-height: 1.6;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(15,17,21,0.8);
  backdrop-filter: saturate(120%) blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: inline-block;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.4px;
  font-size: 18px;
}

.site-nav {
  display: flex;
  gap: 18px;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 8px;
}

.site-nav a:hover {
  color: var(--text);
  background: rgba(255,255,255,0.03);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  margin: 3px 0;
}

.hero {
  padding: 96px 0 64px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.15;
  margin: 0 0 16px;
}

.subheadline {
  font-size: 18px;
  color: var(--muted);
  margin: 0 0 24px;
}

.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

#system .cta-row {
  justify-content: flex-start;
  margin-top: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 12px;
  padding: 12px 18px;
  font-weight: 600;
  font-size: 14px;
}

.btn.primary {
  color: #001221;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 28px rgba(0, 168, 255, 0.24);
}

.btn.secondary {
  color: var(--text);
  background: #1b2230;
  border: 1px solid var(--border);
}

.btn.outline {
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
}

.hero-visual {
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  overflow: hidden;
  padding: 0;
  aspect-ratio: 16 / 9;
  min-height: 220px;
}

.hero-visual svg {
  width: 100%;
  height: auto;
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  border-radius: 0;
  margin: 0;
}

.section {
  padding: 64px 0;
}

.section.alt {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0)) var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section h2 {
  font-size: clamp(22px, 3.5vw, 32px);
  margin: 0 0 16px;
}

.grid {
  display: grid;
  gap: 18px;
}

.benefits {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
}

.card h3 {
  margin: 0 0 4px;
  font-size: 16px;
}

.list {
  margin: 8px 0 0;
  padding: 0 0 0 18px;
  color: var(--muted);
}

.steps {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.pricing {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 8px;
}

.price-card {
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.price-header {
  padding: 18px;
  border-bottom: 1px solid var(--border);
}

.price-header h3 {
  margin: 0 0 4px;
}

.price {
  font-size: 18px;
  font-weight: 700;
}

.ad-spend {
  color: var(--muted);
  font-size: 14px;
}

.price-body {
  padding: 16px 18px 20px;
}

.note {
  margin-top: 10px;
  color: var(--muted);
}

.placeholder-graph {
  height: 180px;
  margin-top: 18px;
  border-radius: 14px;
  border: 1px dashed var(--border);
  background:
    radial-gradient(600px 300px at 100% 0%, rgba(0,94,255,0.08), transparent 60%),
    var(--bg);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--bg);
}

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

.contact-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.contact-links a {
  color: var(--muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid transparent;
}

.contact-links a:hover {
  color: var(--text);
  border-color: var(--border);
  background: rgba(255,255,255,0.03);
}

.form-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}
.form-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 12px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field label {
  font-size: 13px;
  color: var(--muted);
}
.field input,
.field select,
.field textarea {
  background: #1b2230;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,168,255,0.15);
}
.form-status {
  margin-top: 10px;
  color: var(--muted);
  min-height: 20px;
}
.hidden { display: none !important; }

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .benefits {
    grid-template-columns: 1fr 1fr;
  }
  .steps {
    grid-template-columns: 1fr 1fr;
  }
  .pricing {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .site-nav {
    position: fixed;
    right: 16px;
    top: 68px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 8px;
    gap: 6px;
    display: none;
    flex-direction: column;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}