:root { --blue:#2A9DF4; --mint:#4dd4b5; --bg:#ffffff; --fg:#0a0a0a; --muted:#666; --card:#f7f9fc; }
:root[data-theme="dark"] { --bg:#0e1116; --fg:#edf2f7; --card:#161b22; }
*{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--fg);font-family:Inter,system-ui,Segoe UI,Arial,sans-serif;line-height:1.55}
.container{max-width:1100px;margin:0 auto;padding:16px}
.topnav{background:var(--card);border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:5;backdrop-filter:saturate(1.2) blur(6px)}
.navwrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--fg);font-weight:800;font-family:'Nunito Sans',Inter}
.logo{height:36px;width:36px;border-radius:8px}
nav a{margin:0 8px;text-decoration:none;color:var(--fg)}
nav .btn{background:var(--blue);color:white;padding:8px 12px;border-radius:10px}
nav .btn.ghost{background:transparent;border:1px solid #c9e6ff;color:var(--fg)}
.bell{position:relative} .bell .dot{position:absolute;top:-6px;right:-8px;background:crimson;color:#fff;border-radius:10px;padding:0 6px;font-size:12px}
#themeToggle{margin-left:8px;border:1px solid #e5e7eb;background:transparent;border-radius:8px;padding:6px 10px;cursor:pointer}
.avatar{height:32px;width:32px;border-radius:999px;margin-left:8px;}

.hero{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:28px;margin-top:32px}
.hero-copy .display{font-family:'Nunito Sans',Inter;font-size:52px;line-height:1.1;margin:0 0 8px;font-weight:800}
.hero .cta{display:flex;gap:10px;margin:12px 0}
.hero .cta .btn{padding:12px 16px;border-radius:14px;font-weight:700}
.hero-art{position:relative} .hero-art img{width:100%;border-radius:24px;box-shadow:0 18px 40px rgba(20,30,60,.14)}
.fadewhite{position:absolute;inset:0;background:linear-gradient(90deg, rgba(255,255,255,1) 0%, rgba(255,255,255,0) 46%);border-radius:24px;pointer-events:none}
.pills{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.pills .pill{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:var(--card);border:1px solid #e9eef5;font-size:14px;color:#445}
.pills .dot{width:8px;height:8px;background:var(--blue);border-radius:50%;display:inline-block}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:var(--card);padding:16px;border-radius:16px;box-shadow:0 2px 10px rgba(0,0,0,.06)}
.card.mint{border:1px solid #bdf1e6}
.footnav a{color:var(--muted)}

.feature-cards .card{background:#fff;border:1px solid #edf1f7;box-shadow:0 6px 16px rgba(30,60,90,.05)}
.feature-cards .card h3{margin:0 0 6px;font-family:'Nunito Sans',Inter}
.feature-cards .card:before{content:'';display:block;width:40px;height:40px;border-radius:12px;background:rgba(42,157,244,.12);margin-bottom:8px}
.research-cards .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.research-cards .card{background:#fff;border:1px solid #edf1f7;box-shadow:0 6px 16px rgba(30,60,90,.05)}

.steps{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.steps li{background:var(--card);padding:14px;border-radius:22px;border:1px solid #edf1f7}

.layout{display:grid;grid-template-columns:220px 1fr;gap:16px}
.sidebar{background:var(--card);padding:12px;border-radius:16px;height:max-content;position:sticky;top:86px}
.sidebar .collapse{background:transparent;border:1px solid #e5e7eb;border-radius:8px;margin-bottom:10px;cursor:pointer;width:100%}
.sidebar a{display:block;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--fg);margin:4px 0}
.sidebar a.active{background:rgba(42,157,244,.12)}
.bar{height:10px;background:#e5e7eb;border-radius:10px;overflow:hidden;margin-top:8px}
.bar::after{content:'';display:block;height:100%;width:var(--p);background:var(--blue)}
.mini-chart{display:flex;gap:6px;align-items:flex-end;height:60px}
.mini-chart .col{width:10px;background:var(--blue);border-radius:4px}

.table{width:100%;border-collapse:collapse}
.table th,.table td{border-bottom:1px solid #e5e7eb;padding:10px;text-align:left;vertical-align:top}
label{display:block;margin:8px 0}
input,select,textarea{width:100%;padding:10px;border:1px solid #e5e7eb;border-radius:10px;background:transparent;color:inherit}
textarea{min-height:140px}
.btn{display:inline-block;background:var(--blue);color:#fff;padding:12px 16px;border-radius:14px;text-decoration:none;border:none;cursor:pointer;font-weight:700}
.btn.danger{background:#e11d48}
.btn.ghost{background:transparent;border:1px solid #c9e6ff;color:inherit}
.alert{background:#fee2e2;color:#7f1d1d;padding:10px;border-radius:10px;margin:10px 0}
.success{background:#dcfce7;color:#14532d;padding:10px;border-radius:10px;margin:10px 0}
.centered{display:grid;place-items:center;min-height:100vh}
.narrow{max-width:520px;width:100%}
.inline{display:flex;gap:8px;align-items:center}
.footer{border-top:1px solid #e5e7eb;padding:24px 0;margin-top:40px;color:var(--muted)}
.fade-in{animation:fade .6s ease-out both} @keyframes fade{from{opacity:.0;transform:translateY(8px)}to{opacity:1;transform:none}}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);display:none;align-items:center;justify-content:center;padding:16px}
.modal.show{display:flex} .modal-inner{background:var(--bg);border-radius:16px;padding:18px;max-width:520px;width:100%;position:relative}
.modal .close{position:absolute;top:8px;right:8px;border:none;background:transparent;font-size:24px;cursor:pointer}
.honeypot{position:absolute;left:-5000px;}
@media (max-width:900px){.hero{grid-template-columns:1fr}.grid3{grid-template-columns:1fr}.grid4{grid-template-columns:1fr}.layout{grid-template-columns:1fr}.hero-copy .display{font-size:36px}}

/* === Feature cards: single icon layer (fix double icon) === */

/* 1) Kill the extra decorative square added by the old rule */
.feature-cards .card:before { content: none !important; }

/* 2) Icon container (soft square behind the icon) */
.iconwrap{
  display:grid;
  place-items:center;
  width:56px; height:56px;
  border-radius:14px;
  background:rgba(42,157,244,.08);
  border:1px solid #e6f2ff;
  box-shadow:0 1px 0 rgba(255,255,255,.6) inset;
  margin-bottom:12px;
}

/* 3) One icon per card (drawn with a single ::before) */
.iconwrap > span{
  position:relative;
  display:block;
  width:28px; height:28px;
}

/* Dot */
.icon-dot::before{
  content:""; position:absolute; inset:0;
  border-radius:50%;
  background:#2A9DF4;
}

/* Monitor */
.icon-monitor::before{
  content:""; position:absolute; left:0; right:0; top:3px; bottom:7px;
  border:2px solid #2A9DF4; border-radius:6px;
  box-shadow: inset 0 -4px 0 #2A9DF4;   /* bottom bezel */
}
.icon-monitor::after{
  content:""; position:absolute; left:7px; right:7px; bottom:0;
  height:3px; background:#2A9DF4; border-radius:2px;   /* stand */
}

/* Graph (bars + arrow tip) */
.icon-graph::before{
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(to top, #2A9DF4 0 16px, transparent 16px) left/4px 100% repeat-x;
  -webkit-mask:
    linear-gradient(90deg, #000 0 60%, transparent 60%); /* 3 bars */
}
.icon-graph::after{
  content:""; position:absolute; right:2px; bottom:6px;
  width:12px; height:12px;
  border-top:2px solid #2A9DF4; border-right:2px solid #2A9DF4;
  transform: rotate(45deg);
}

/* Lock */
.icon-lock::before{
  content:""; position:absolute; left:2px; right:2px; bottom:2px; height:14px;
  border:2px solid #2A9DF4; border-radius:6px;
}
.icon-lock::after{
  content:""; position:absolute; left:6px; right:6px; top:0; height:10px;
  border:2px solid #2A9DF4; border-bottom:none; border-radius:10px 10px 0 0;
}

/* 4) Card typography & hover polish (matches your mock) */
.feature-cards .card{
  background:#fff; border:1px solid #edf1f7;
  box-shadow:0 8px 20px rgba(30,60,90,.06);
  transition: transform .16s ease, box-shadow .2s ease, border-color .2s ease;
}
.feature-cards .card:hover{
  transform: translateY(-3px);
  box-shadow:0 16px 32px rgba(20,30,60,.12);
  border-color:#cfe3ff;
}
.feature-cards .card h3{ font-size:22px; margin:6px 0 8px; font-weight:800; color:#0b1324; }
.feature-cards .card p{ font-size:18px; line-height:1.5; color:#1a2436; }

/* 5) (Optional) Slight lift on icon when hovering the card */
.feature-cards .card:hover .iconwrap{ transform: translateY(-2px); transition: transform .16s ease; }