:root{
  --bg: #0a0e14;
  --bg-alt: #0d1420;
  --card: #121a26;
  --card-border: #1f2b3a;
  --text: #e8edf4;
  --text-muted: #93a1b4;
  --text-faint: #5c6b80;
  --accent: #38bdf8;
  --accent-2: #22d3ee;
  --accent-ink: #052430;
  --amber: #f5a524;
  --amber-ink: #2b1a02;
  --danger: #f0708a;
  --radius: 14px;
  --container: 1120px;
  color-scheme: dark;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(60rem 30rem at 15% -10%, rgba(56,189,248,0.14), transparent 60%),
    radial-gradient(50rem 26rem at 110% 10%, rgba(34,211,238,0.10), transparent 55%);
  background-repeat: no-repeat;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.mono{ font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace; }

a{ color: inherit; }

h1, h2, h3{ line-height: 1.15; margin: 0; font-weight: 650; letter-spacing: -0.02em; }
p{ margin: 0; }

.container{
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 40px);
}

.visually-hidden{
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link{
  position: absolute;
  top: -40px;
  left: 12px;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 600;
  z-index: 100;
  transition: top .15s ease;
}
.skip-link:focus{ top: 12px; }

:focus-visible{ outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(10,14,20,0.78);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--card-border);
}
.site-header .container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 14px;
  flex-wrap: wrap;
}
.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand svg{ width: 26px; height: 26px; flex: none; }

.site-nav{
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 28px);
  flex-wrap: wrap;
}
.site-nav a{
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}
.site-nav a:hover{ color: var(--text); }

.badge{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
}
.badge-amber{
  background: rgba(245,165,36,0.14);
  color: var(--amber);
  border: 1px solid rgba(245,165,36,0.35);
}
.badge-dot{
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
}

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 650;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-ink);
}
.btn-primary:hover{ filter: brightness(1.06); }
.btn-ghost{
  background: transparent;
  color: var(--text);
  border-color: var(--card-border);
}
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); }

/* ---------- Hero ---------- */
.hero{
  padding-block: clamp(56px, 9vw, 108px) clamp(40px, 7vw, 80px);
}
.hero .container{
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.kicker{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.kicker::before{
  content: "";
  width: 18px; height: 1px;
  background: var(--accent-2);
}
.hero h1{
  font-size: clamp(2.1rem, 4.4vw, 3.4rem);
}
.hero .lede{
  margin-top: 20px;
  font-size: clamp(1.02rem, 1.4vw, 1.18rem);
  color: var(--text-muted);
  max-width: 54ch;
}
.hero-ctas{
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.link-arrow{
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.link-arrow:hover{ color: var(--text); }

.hero-foot-note{
  margin-top: 28px;
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* ---------- App mock ---------- */
.app-mock{
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  box-shadow: 0 30px 70px -30px rgba(0,0,0,0.65);
  overflow: hidden;
}
.app-mock-bar{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--card-border);
  font-size: 0.82rem;
  font-weight: 650;
  color: var(--text-muted);
}
.app-mock-bar svg{ width: 15px; height: 15px; color: var(--accent-2); }
.app-mock-body{ padding: 18px; }
.mock-btn{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 13px 14px;
  border-radius: 9px;
  font-weight: 650;
  font-size: 0.92rem;
  margin-bottom: 10px;
  border: 1px solid var(--card-border);
}
.mock-btn-primary{
  background: linear-gradient(135deg, rgba(56,189,248,0.22), rgba(34,211,238,0.14));
  border-color: rgba(56,189,248,0.4);
  color: #cdeeff;
}
.mock-btn-secondary{
  background: transparent;
  color: var(--text-faint);
}
.app-mock-status{
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 9px;
  background: var(--bg-alt);
  border: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
}
.app-mock-status .label{ color: var(--text-muted); }
.app-mock-status .value{
  font-weight: 700;
  color: var(--amber);
}
.app-mock-caption{
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--text-faint);
  text-align: center;
}

/* ---------- Sections ---------- */
section{ padding-block: clamp(48px, 8vw, 96px); }
.section-head{
  max-width: 62ch;
  margin-bottom: clamp(32px, 5vw, 52px);
}
.eyebrow{
  display: block;
  color: var(--accent-2);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-head h2{ font-size: clamp(1.6rem, 3vw, 2.3rem); }
.section-head p{
  margin-top: 14px;
  color: var(--text-muted);
  font-size: 1.05rem;
}

#overview{ border-top: 1px solid var(--card-border); }

.overview-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}
.overview-copy p{ color: var(--text-muted); font-size: 1.02rem; }
.overview-copy p + p{ margin-top: 16px; }

.pillars{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.pillar{
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 18px;
}
.pillar .icon{ color: var(--accent); margin-bottom: 10px; }
.pillar h3{ font-size: 0.98rem; }
.pillar p{ margin-top: 6px; font-size: 0.86rem; color: var(--text-muted); }

.icon{ display: inline-flex; }
.icon svg{ width: 22px; height: 22px; }

/* ---------- Features ---------- */
#features{ background: var(--bg-alt); border-top: 1px solid var(--card-border); border-bottom: 1px solid var(--card-border); }

.feature-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.feature-card{
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px;
}
.feature-card .icon{
  color: var(--accent);
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: 10px;
  padding: 9px;
  margin-bottom: 14px;
}
.feature-card h3{ font-size: 1rem; }
.feature-card p{ margin-top: 8px; font-size: 0.88rem; color: var(--text-muted); }

/* ---------- How it works ---------- */
.steps{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  counter-reset: step;
  position: relative;
}
.step{ position: relative; padding-top: 6px; }
.step-num{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--accent);
  color: var(--accent-2);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 14px;
}
.step h3{ font-size: 0.98rem; }
.step p{ margin-top: 6px; font-size: 0.87rem; color: var(--text-muted); }

/* ---------- Coming soon ---------- */
#coming-soon{
  text-align: center;
}
.coming-soon-card{
  max-width: 720px;
  margin-inline: auto;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: clamp(32px, 6vw, 56px);
  position: relative;
  overflow: hidden;
}
.coming-soon-card::before{
  content: "";
  position: absolute;
  inset: -40% -10% auto -10%;
  height: 220px;
  background: radial-gradient(closest-side, rgba(245,165,36,0.16), transparent 70%);
  pointer-events: none;
}
.coming-soon-card h2{ font-size: clamp(1.5rem, 3vw, 2rem); margin-top: 16px; }
.coming-soon-card p{
  margin-top: 14px;
  color: var(--text-muted);
  font-size: 1.02rem;
  max-width: 52ch;
  margin-inline: auto;
}
.checklist{
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  list-style: none;
  padding: 0;
}
.checklist li{
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--bg-alt);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 0.83rem;
  color: var(--text-muted);
}
.checklist svg{ width: 14px; height: 14px; color: var(--accent-2); flex: none; }

/* ---------- Footer ---------- */
footer{
  border-top: 1px solid var(--card-border);
  padding-block: 32px;
}
footer .container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.foot-brand{
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-muted);
}
.foot-brand svg{ width: 18px; height: 18px; }
footer .legal{
  font-size: 0.82rem;
  color: var(--text-faint);
  text-align: right;
}

/* ---------- 404 ---------- */
.error-page{
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
}
.error-page .eyebrow{ justify-content: center; display: flex; }
.error-page h1{ font-size: clamp(2rem, 5vw, 3rem); margin-top: 14px; }
.error-page p{ margin-top: 14px; color: var(--text-muted); font-size: 1.05rem; }
.error-page .btn{ margin-top: 28px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .hero .container{ grid-template-columns: 1fr; }
  .hero-visual{ order: -1; max-width: 420px; margin-inline: auto; width: 100%; }
  .overview-grid{ grid-template-columns: 1fr; }
  .feature-grid{ grid-template-columns: 1fr 1fr; }
  .steps{ grid-template-columns: 1fr 1fr; row-gap: 26px; }
}

@media (max-width: 620px){
  .site-nav{ gap: 14px; }
  .pillars{ grid-template-columns: 1fr; }
  .feature-grid{ grid-template-columns: 1fr; }
  .steps{ grid-template-columns: 1fr; }
  footer .container{ flex-direction: column; align-items: flex-start; }
  footer .legal{ text-align: left; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
}