:root {
  --bg: #071220;
  --bg-2: #0b1f38;
  --bg-3: #0d2847;
  --surface: #ffffff;
  --surface-soft: #f5f8fc;
  --surface-line: #d9e4f2;
  --text: #122033;
  --text-soft: #54657d;
  --text-light: #d9e8ff;
  --primary: #1677ff;
  --primary-2: #34b3ff;
  --success: #1dd39a;
  --warning: #ffb84d;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 20px 50px rgba(8, 20, 40, 0.10);
  --shadow-strong: 0 28px 60px rgba(6, 14, 30, 0.30);
  --container: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text);
  background: var(--surface);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}
.narrow { max-width: 820px; }
.center { text-align: center; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(7, 18, 32, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 54px;
  height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  letter-spacing: 0.04em;
  box-shadow: var(--shadow-strong);
}
.brand-text { color: #fff; font-weight: 700; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: rgba(255,255,255,0.88);
  font-size: 0.96rem;
}
.main-nav a:hover { color: #fff; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 14px 22px;
  font-weight: 700;
  transition: 0.2s ease;
  border: 1px solid transparent;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  box-shadow: 0 18px 40px rgba(22,119,255,0.25);
}
.btn-secondary {
  border-color: rgba(255,255,255,0.18);
  color: #fff;
  background: rgba(255,255,255,0.08);
}
.btn-light {
  background: #fff;
  color: var(--bg-2);
}
.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.btn-nav { white-space: nowrap; }

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 20%, rgba(52,179,255,0.25), transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(22,119,255,0.22), transparent 30%),
    linear-gradient(135deg, #06111f 0%, #0a1d35 55%, #0b2442 100%);
  color: #fff;
  padding: 84px 0 72px;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7,18,32,0.35), rgba(7,18,32,0.05));
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.eyebrow, .section-kicker {
  margin: 0 0 12px;
  font-size: 0.92rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-2);
}
.kicker-light { color: rgba(255,255,255,0.78); }
.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  max-width: 14ch;
}
.lead {
  font-size: 1.12rem;
  color: rgba(255,255,255,0.84);
  max-width: 60ch;
  margin: 20px 0 0;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.mini-points {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 16px;
}
.mini-points li {
  position: relative;
  padding-left: 18px;
  color: rgba(255,255,255,0.88);
}
.mini-points li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  position: absolute;
  left: 0;
  top: 10px;
}
.hero-panel-placeholder {
  display: flex;
  justify-content: center;
}
.mockup-window {
  width: 100%;
  max-width: 560px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 28px;
  padding: 18px;
  box-shadow: var(--shadow-strong);
}
.mockup-topbar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.mockup-topbar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.28);
}
.mockup-body {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 14px;
}
.mockup-sidebar,
.mockup-card,
.mockup-col {
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.06));
  border: 1px solid rgba(255,255,255,0.08);
}
.mockup-sidebar { min-height: 330px; }
.mockup-main { display: grid; gap: 14px; }
.mockup-card-lg { min-height: 120px; }
.mockup-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.mockup-col { min-height: 196px; }
.mockup-caption {
  margin: 14px 0 2px;
  text-align: center;
  font-size: 0.92rem;
  color: rgba(255,255,255,0.72);
}

.section { padding: 96px 0; }
.section-light { background: var(--surface); }
.section-dark {
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-2) 100%);
  color: #fff;
}
.section h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3vw, 3rem);
  line-height: 1.14;
  letter-spacing: -0.03em;
}
.section-intro {
  font-size: 1.1rem;
  color: var(--text-soft);
  margin-top: 16px;
}
.section-dark .section-intro,
.section-dark p,
.section-dark li { color: rgba(255,255,255,0.82); }
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.split-reverse > :first-child { order: 2; }
.split-reverse > :last-child { order: 1; }

.card-grid {
  display: grid;
  gap: 22px;
  margin-top: 40px;
}
.six-up { grid-template-columns: repeat(3, 1fr); }
.three-up { grid-template-columns: repeat(3, 1fr); }
.info-card,
.metric-card,
.use-card,
.step-card,
.comparison-card {
  background: var(--surface);
  border: 1px solid var(--surface-line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.info-card h3,
.metric-card h3,
.use-card h3,
.step-card h3,
.comparison-card h3,
.sample-card h3,
.bullet-stack h3 {
  margin: 0 0 10px;
  font-size: 1.18rem;
  line-height: 1.2;
}
.info-card p,
.metric-card p,
.use-card p,
.step-card p,
.comparison-card p,
.bullet-stack p,
.sample-card dd,
.faq-list p,
.site-footer p,
.site-footer li,
.examples-list,
.section p {
  color: var(--text-soft);
}
.section-dark .metric-card,
.section-dark .example-item {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.08);
}
.section-dark .metric-card p,
.section-dark .metric-card h3,
.section-dark .example-item { color: #fff; }
.section-solution .placeholder-frame,
.ideal-section .placeholder-frame,
.panel-big-placeholder .placeholder-frame {
  min-height: 360px;
}
.placeholder-frame {
  min-height: 260px;
  border-radius: 26px;
  border: 2px dashed rgba(22,119,255,0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px;
  color: var(--text-soft);
  background: linear-gradient(180deg, #f7fbff, #eef5fc);
}
.large-placeholder .placeholder-frame,
.tall .placeholder-frame,
.tall.placeholder-frame { min-height: 420px; }
.check-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
}
.check-list li {
  position: relative;
  padding-left: 22px;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 42px;
}
.step-number {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  font-weight: 800;
  margin-bottom: 18px;
}
.panel-split { align-items: start; }
.panel-big-placeholder .placeholder-frame {
  background: linear-gradient(180deg, #0f2646, #0b1c33);
  color: rgba(255,255,255,0.76);
  border-color: rgba(255,255,255,0.12);
}
.bullet-stack {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}
.sample-card {
  border-radius: 28px;
  background: linear-gradient(180deg, #ffffff, #f4f8fd);
  border: 1px solid var(--surface-line);
  padding: 30px;
  box-shadow: var(--shadow);
}
.priority-tag {
  display: inline-flex;
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
  background: linear-gradient(135deg, #ff9a3d, #ffb84d);
}
.sample-card dl {
  display: grid;
  gap: 14px;
  margin: 20px 0 0;
}
.sample-card dt {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-soft);
  margin-bottom: 4px;
}
.sample-card dd {
  margin: 0;
  color: var(--text);
  font-weight: 600;
}
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 42px;
}
.comparison-card.muted { background: #f7faff; }
.comparison-card.featured {
  background: linear-gradient(180deg, #0d213b, #14345b);
  border-color: rgba(255,255,255,0.08);
}
.comparison-card.featured h3,
.comparison-card.featured p { color: #fff; }
.examples-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 40px;
}
.example-item {
  padding: 20px 22px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.1);
}
.faq-list {
  max-width: 900px;
  margin: 40px auto 0;
  display: grid;
  gap: 14px;
}
.faq-list details {
  border: 1px solid var(--surface-line);
  border-radius: 18px;
  padding: 18px 20px;
  background: #fff;
}
.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list p { margin: 14px 0 0; }
.cta-section {
  padding-top: 0;
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface) 20%, var(--bg) 20%, var(--bg) 100%);
}
.cta-box {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, #0a86ff 55%, var(--primary-2) 100%);
  color: #fff;
  border-radius: 30px;
  padding: 40px;
  box-shadow: var(--shadow-strong);
}
.cta-box p { color: rgba(255,255,255,0.84); }
.cta-actions {
  display: flex;
  justify-content: flex-end;
  gap: 14px;
  flex-wrap: wrap;
}
.site-footer {
  background: var(--bg);
  color: #fff;
  padding: 60px 0 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 32px;
}
.site-footer h3 {
  margin-top: 0;
  margin-bottom: 14px;
  font-size: 1rem;
}
.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.site-footer a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 32px;
  padding-top: 18px;
}
.footer-bottom p { margin: 0; color: rgba(255,255,255,0.62); }

@media (max-width: 1100px) {
  .hero-grid,
  .split,
  .cta-box,
  .footer-grid,
  .comparison-grid,
  .steps-grid { grid-template-columns: 1fr; }
  .six-up,
  .three-up,
  .examples-list { grid-template-columns: repeat(2, 1fr); }
  .cta-actions { justify-content: flex-start; }
}

@media (max-width: 860px) {
  .main-nav { display: none; }
  .mini-points,
  .six-up,
  .three-up,
  .examples-list { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; }
  .section { padding: 76px 0; }
  .mockup-body { grid-template-columns: 1fr; }
  .mockup-sidebar { min-height: 72px; }
  .mockup-columns { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .container { width: min(var(--container), calc(100% - 28px)); }
  .btn, .btn-nav { width: 100%; }
  .hero-actions { flex-direction: column; }
  .cta-box { padding: 28px; }
  .info-card,
  .metric-card,
  .use-card,
  .step-card,
  .comparison-card,
  .sample-card,
  .faq-list details { padding: 22px; }
}