:root{
  --bg:#ffffff;
  --bg-soft:#f6f8fb;
  --ink:#0e1a2b;
  --muted:#5a6b80;
  --line:#e5ebf2;
  --brand:#3253ff;
  --brand-2:#6a4dff;
  --ok:#1aa971;
  --shadow:0 10px 30px rgba(20,40,80,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter','Segoe UI',Roboto,system-ui,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1120px;margin:0 auto;padding:0 24px}

/* nav */
.nav{
  position:sticky;top:0;z-index:10;
  background:rgba(255,255,255,.85);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}
.brand img{width:28px;height:28px;user-select:none}
.brand .name{letter-spacing:-.2px}
.nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.nav ul a{color:var(--ink);font-weight:500;font-size:14px}
.nav-cta{display:flex;gap:10px;align-items:center}
.btn{
  display:inline-block;border-radius:8px;padding:10px 16px;
  font-weight:600;font-size:14px;border:1px solid transparent;cursor:pointer;
  transition:all .15s ease;
}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--bg-soft);text-decoration:none}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:#2746e0;text-decoration:none}
.btn-lg{padding:14px 22px;font-size:15px}

/* hero */
.hero{padding:80px 0 60px;background:linear-gradient(180deg,#f7f9ff 0%,#fff 100%)}
.hero h1{font-size:48px;line-height:1.1;margin:0 0 18px;letter-spacing:-1px}
.hero h1 span{background:linear-gradient(90deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:18px;color:var(--muted);max-width:640px;margin:0 0 32px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.mock{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);overflow:hidden;
}
.mock-bar{height:32px;background:var(--bg-soft);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 12px;gap:6px}
.mock-bar i{width:10px;height:10px;border-radius:50%;background:#dbe2ec;display:inline-block}
.mock-body{padding:18px}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:14px}
.kpi{background:var(--bg-soft);border-radius:10px;padding:12px}
.kpi .label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px}
.kpi .value{font-size:20px;font-weight:700;margin-top:4px}
.kpi .delta{font-size:12px;color:var(--ok);margin-top:2px}
.chart{height:130px;background:
  linear-gradient(180deg,rgba(50,83,255,.15),rgba(50,83,255,0)) ,
  repeating-linear-gradient(0deg,var(--line) 0 1px,transparent 1px 26px);
  border-radius:8px;position:relative;overflow:hidden;
}
.chart svg{position:absolute;inset:0;width:100%;height:100%}

/* sections */
section{padding:72px 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head h2{font-size:34px;margin:0 0 12px;letter-spacing:-.5px}
.section-head p{color:var(--muted);font-size:17px;max-width:620px;margin:0 auto}

.features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;
  transition:transform .15s ease,box-shadow .15s ease;
}
.feature:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.feature .ico{width:38px;height:38px;border-radius:10px;background:rgba(50,83,255,.1);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:14px;font-weight:700}
.feature h3{margin:0 0 8px;font-size:18px}
.feature p{margin:0;color:var(--muted);font-size:14.5px}

.alt{background:var(--bg-soft)}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.metric .num{font-size:38px;font-weight:800;color:var(--brand);letter-spacing:-1px}
.metric .cap{color:var(--muted);font-size:14px;margin-top:4px}

.cta-band{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#fff;border-radius:16px;padding:48px;text-align:center;margin:40px 0}
.cta-band h2{margin:0 0 10px;font-size:30px}
.cta-band p{margin:0 0 22px;opacity:.9}
.cta-band .btn-primary{background:#fff;color:var(--brand)}
.cta-band .btn-primary:hover{background:#f1f4ff}

/* footer */
footer{border-top:1px solid var(--line);padding:42px 0 28px;color:var(--muted);font-size:14px;background:#fff}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:28px}
.foot-grid h4{color:var(--ink);font-size:14px;margin:0 0 12px;text-transform:uppercase;letter-spacing:.5px}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:8px}
.foot-grid a{color:var(--muted)}
.foot-bottom{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* auth pages */
.auth-wrap{min-height:calc(100vh - 64px);display:flex;align-items:center;justify-content:center;padding:40px 20px;background:linear-gradient(180deg,#f7f9ff,#fff)}
.auth-card{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);width:100%;max-width:420px;padding:36px}
.auth-card h1{margin:0 0 6px;font-size:26px}
.auth-card .sub{color:var(--muted);font-size:14px;margin-bottom:24px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink)}
.field input{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:8px;font-size:14px;
  font-family:inherit;background:#fff;color:var(--ink);transition:border-color .15s;
}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(50,83,255,.15)}
.row-between{display:flex;justify-content:space-between;align-items:center;font-size:13px;margin:4px 0 18px}
.row-between label{color:var(--muted);display:flex;gap:6px;align-items:center}
.btn-block{width:100%;padding:12px;font-size:15px}
.divider{text-align:center;color:var(--muted);font-size:12px;margin:18px 0;position:relative}
.divider:before,.divider:after{content:'';position:absolute;top:50%;width:42%;height:1px;background:var(--line)}
.divider:before{left:0}.divider:after{right:0}
.alt-foot{text-align:center;font-size:13px;color:var(--muted);margin-top:18px}

@media (max-width:880px){
  .hero h1{font-size:36px}
  .hero-grid,.features,.metrics,.foot-grid{grid-template-columns:1fr}
  .nav ul{display:none}
  section{padding:54px 0}
}