:root{
  --bg: #0b0f14;
  --text: #e7edf6;
  --muted: #a9b6c7;
  --line: rgba(255,255,255,.10);
  --brand: #6ee7ff;
  --brand2: #a78bfa;
  --shadow: 0 18px 60px rgba(0,0,0,.35);
  --radius: 18px;
  --max: 1100px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: radial-gradient(1200px 800px at 30% -10%, rgba(110,231,255,.12), transparent 60%),
              radial-gradient(1200px 800px at 80% 10%, rgba(167,139,250,.10), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a{ color: inherit; text-decoration: none; }
.container{ width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

.section{ padding: 72px 0; }
.section-alt{ background: linear-gradient(180deg, rgba(255,255,255,.02), transparent); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head{ margin-bottom: 26px; }
.section-head h2{ font-size: clamp(24px, 3vw, 34px); margin: 0 0 10px; }
.section-head p{ margin: 0; color: var(--muted); max-width: 70ch; }

/* Header */
.site-header{
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,15,20,.75);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
  gap: 12px;
}

/* Brand */
.brand{ display: flex; align-items: center; gap: 10px; }
.brand-logo{
  width: 200px;
  height: 100px;
  object-fit: contain;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding: 6px;
}
.brand-text strong{ display:block; letter-spacing: .6px; }
.brand-text small{ color: var(--muted); display:block; margin-top: -2px; }

/* Nav */
.nav{ display:flex; align-items:center; gap: 14px; }
.nav-link{ color: var(--muted); padding: 8px 10px; border-radius: 12px; }
.nav-link:hover{ color: var(--text); background: rgba(255,255,255,.04); }

.nav-toggle{
  display:none;
  width: 46px; height: 42px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  cursor:pointer;
}
.nav-toggle span{
  display:block; width: 22px; height: 2px;
  background: var(--text);
  margin: 6px auto;
  opacity:.9;
}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid rgba(110,231,255,.25);
  background: linear-gradient(135deg, rgba(110,231,255,.20), rgba(167,139,250,.12));
  box-shadow: var(--shadow);
  font-weight: 650;
  letter-spacing: .2px;
  cursor:pointer;
}
.btn:hover{ transform: translateY(-1px); }
.btn:active{ transform: translateY(0px); }
.btn-small{ padding: 9px 12px; border-radius: 12px; box-shadow: none; }
.btn-ghost{
  background: rgba(255,255,255,.03);
  border: 1px solid var(--line);
  box-shadow: none;
  color: var(--text);
}

/* Hero */
.hero{ padding: 64px 0 24px; }
.hero-grid{
  display:grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 22px;
  align-items: start;
}
.kicker{
  display:inline-block;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding: 8px 12px;
  border-radius: 999px;
  margin: 0 0 14px;
}
.hero-copy h1{
  font-size: clamp(30px, 4vw, 46px);
  margin: 0 0 12px;
  line-height: 1.15;
}
.sub{ margin: 0 0 18px; color: var(--muted); max-width: 70ch; }
.hero-actions{ display:flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }

.hero-badges{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.badge{
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  border-radius: var(--radius);
  padding: 14px;
}
.badge strong{ display:block; }
.badge span{ color: var(--muted); font-size: 13px; }

.hero-card .card{ position: sticky; top: 84px; }

/* Cards / Layout */
.card{
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  border-radius: var(--radius);
  padding: 18px;
}
.card h2, .card h3{ margin: 0 0 10px; }
.card h4{ margin: 16px 0 8px; }
.muted{ color: var(--muted); }
.small{ font-size: 13px; }
.divider{ height:1px; background: var(--line); margin: 16px 0; }

.grid-2{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.meta{ list-style:none; padding:0; margin: 0; }
.meta li{
  display:flex; justify-content: space-between; align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(255,255,255,.09);
}
.meta li:last-child{ border-bottom: none; }
.meta span{ color: var(--muted); font-size: 13px; }

.bullets{ margin: 0; padding-left: 18px; color: var(--muted); }
.ticks{ list-style: none; padding: 0; margin: 0; }
.ticks li{
  padding: 9px 0 9px 26px;
  border-bottom: 1px dashed rgba(255,255,255,.09);
  position: relative;
  color: var(--muted);
}
.ticks li:last-child{ border-bottom:none; }
.ticks li::before{
  content: "✓";
  position:absolute; left: 0; top: 9px;
  color: var(--brand);
  font-weight: 800;
}

.label{ color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .12em; margin: 0 0 6px; }
.stack > div{ margin-bottom: 12px; }
.stack > div:last-child{ margin-bottom: 0; }

/* Tabs */
.tabs{ display:flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.tab{
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding: 10px 14px;
  color: var(--muted);
  cursor:pointer;
  font-weight: 650;
}
.tab.active{
  color: var(--text);
  border-color: rgba(110,231,255,.25);
  background: linear-gradient(135deg, rgba(110,231,255,.14), rgba(167,139,250,.10));
}
.panel{ display:none; }
.panel.active{ display:block; }

.small-head{ font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

/* Mini steps */
.mini{
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  border-radius: var(--radius);
  padding: 16px;
}
.mini-no{
  display:inline-flex; align-items:center; justify-content:center;
  width: 34px; height: 34px; border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--brand);
  font-weight: 800;
  margin-bottom: 10px;
}
.mini h3{ margin: 0 0 6px; font-size: 16px; }
.mini p{ margin: 0; color: var(--muted); }

/* People */
.person{ display:flex; gap: 14px; align-items: flex-start; }
.avatar{
  width: 52px; height: 52px;
  border-radius: 18px;
  display:grid; place-items:center;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(110,231,255,.18), rgba(167,139,250,.10));
  color: var(--text);
  font-weight: 850;
}
.role{ margin: 2px 0 8px; color: var(--muted); }

/* Pills / Callout */
.pill-row{ display:flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.pill{
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
}
.callout{
  margin-top: 16px;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 14px;
}

/* Form */
form label{ display:block; margin-bottom: 12px; color: var(--muted); font-size: 13px; }
input, select, textarea{
  width: 100%;
  margin-top: 6px;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,.25);
  color: var(--text);
  outline: none;
}
input:focus, select:focus, textarea:focus{
  border-color: rgba(110,231,255,.35);
  box-shadow: 0 0 0 4px rgba(110,231,255,.07);
}
.result{
  margin-top: 14px;
  border: 1px solid rgba(110,231,255,.18);
  background: rgba(110,231,255,.05);
  border-radius: var(--radius);
  padding: 12px;
}
.result-head{
  display:flex; align-items:center; justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
pre{
  white-space: pre-wrap;
  word-wrap: break-word;
  margin: 0;
  color: var(--text);
  font-size: 13px;
  line-height: 1.5;
}

/* Footer / To top */
.footer{ padding-top: 30px; color: var(--muted); font-size: 13px; }
.to-top{
  position: fixed;
  right: 16px; bottom: 16px;
  width: 44px; height: 44px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  display:grid; place-items:center;
  color: var(--text);
  opacity: .9;
}
.to-top:hover{ opacity: 1; }

/* Responsive */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-card .card{ position: relative; top: 0; }
  .hero-badges{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }
  .grid-4{ grid-template-columns: 1fr 1fr; }
  .grid-2{ grid-template-columns: 1fr; }

  .nav-toggle{ display:block; }
  .nav{
    position: fixed;
    top: 70px; right: 20px; left: 20px;
    display: none;
    flex-direction: column;
    padding: 12px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: rgba(11,15,20,.92);
    backdrop-filter: blur(12px);
  }
  .nav.open{ display:flex; }
  .callout{ flex-direction: column; align-items: stretch; }
}