/* Threshold — shared design tokens & chrome (nav, footer, buttons, badges,
   screening-card component). Used by index.html and demo.html. Page-specific
   sections live inline in each page. */

:root{
  --bg:#08090c; --bg-elevated:#111420; --bg-card:#12141c; --border:#1f2430;
  --text:#eef1f6; --text-muted:#8b93a8; --text-dim:#5c6478;
  --accent:#4f8dfd; --accent-soft:rgba(79,141,253,.12);
  --mint:#35e0c8; --mint-soft:rgba(53,224,200,.12);
  --danger:#ff5c6c; --danger-soft:rgba(255,92,108,.12);
  --warn:#ffb454; --warn-soft:rgba(255,180,84,.12);
  --safe:#4ade80; --safe-soft:rgba(74,222,128,.12);
  --radius:14px;
  --font-head:'Space Grotesk', ui-sans-serif, system-ui, sans-serif;
  --font-body:'Inter', ui-sans-serif, system-ui, sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:var(--font-body); line-height:1.6; -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-head); margin:0; letter-spacing:-.01em;}
p{margin:0;}
a{color:inherit; text-decoration:none;}
img,svg{display:block;}
.wrap{max-width:1180px; margin:0 auto; padding:0 28px;}
section{position:relative;}

/* background glow used behind hero-style sections */
.glow{position:absolute; inset:0; z-index:0; pointer-events:none; overflow:hidden;}
.glow::before{
  content:''; position:absolute; top:-320px; left:50%; transform:translateX(-50%);
  width:1100px; height:700px; border-radius:50%;
  background:radial-gradient(closest-side, rgba(79,141,253,.16), rgba(53,224,200,.06) 45%, transparent 70%);
  filter:blur(10px);
}

/* ---------- eyebrow / pill badge ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-size:12.5px; font-weight:600;
  color:var(--mint); background:var(--mint-soft); border:1px solid rgba(53,224,200,.25);
  padding:6px 14px; border-radius:100px; letter-spacing:.02em;
}
.eyebrow .dot{width:6px; height:6px; border-radius:50%; background:var(--mint); box-shadow:0 0 8px var(--mint);}
.eyebrow.neutral{color:var(--text-muted); background:var(--bg-card); border-color:var(--border);}
.eyebrow.neutral .dot{background:var(--text-dim); box-shadow:none;}

/* ---------- nav ---------- */
header{
  position:sticky; top:0; z-index:50; backdrop-filter:blur(14px);
  background:rgba(8,9,12,.72); border-bottom:1px solid var(--border);
}
nav{display:flex; align-items:center; justify-content:space-between; padding:16px 28px; max-width:1180px; margin:0 auto;}
.brand{display:flex; align-items:center; gap:10px; font-family:var(--font-head); font-weight:700; font-size:19px;}
.brand .sub{font-family:var(--font-body); font-weight:500; font-size:11px; color:var(--text-dim); border-left:1px solid var(--border); padding-left:10px; margin-left:2px;}
.nav-links{display:flex; align-items:center; gap:32px; font-size:14px; color:var(--text-muted);}
.nav-links a:hover{color:var(--text);}
.nav-cta{display:flex; align-items:center; gap:16px;}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:11px 20px; border-radius:100px; font-size:14px; font-weight:600;
  cursor:pointer; border:1px solid transparent; white-space:nowrap;
}
.btn-primary{background:var(--text); color:#0a0b0e;}
.btn-primary:hover{background:#fff;}
.btn-ghost{border-color:var(--border); color:var(--text);}
.btn-ghost:hover{border-color:var(--accent);}
.menu-toggle{display:none; background:none; border:none; color:var(--text); font-size:22px; cursor:pointer; flex-shrink:0;}
.nav-links-mobile-only{display:none;}

/* ---------- generic section heading ---------- */
.section{padding:100px 0;}
.section-head{max-width:640px; margin-bottom:56px;}
.kicker{font-size:12.5px; font-weight:700; color:var(--accent); text-transform:uppercase; letter-spacing:.1em; margin-bottom:14px; display:block;}
.section h2{font-size:34px; font-weight:700; letter-spacing:-.01em;}
.section-head p{color:var(--text-muted); font-size:16px; margin-top:14px;}

/* ---------- screening-card component (hero mock + demo case cards) ---------- */
.mock{
  background:var(--bg-card); border:1px solid var(--border); border-radius:20px;
  padding:20px; box-shadow:0 30px 80px -30px rgba(0,0,0,.7);
}
.mock-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:16px;}
.mock-title{font-size:12px; color:var(--text-dim); text-transform:uppercase; letter-spacing:.08em; font-weight:600;}
.mock-dots{display:flex; gap:6px;}
.mock-dots span{width:8px; height:8px; border-radius:50%; background:var(--border);}
.mock-card{
  background:var(--bg-elevated); border:1px solid var(--border); border-radius:12px; padding:16px;
  margin-bottom:10px; transition:border-color .3s ease;
}
.mock-card-top{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:8px;}
.mock-sender{font-size:13.5px; font-weight:600;}
.mock-chan{font-size:11px; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em;}
.mock-body{font-size:13px; color:var(--text-muted); line-height:1.5;}
.verdict{
  display:inline-flex; align-items:center; gap:6px; font-size:11px; font-weight:700;
  padding:4px 10px; border-radius:100px; text-transform:uppercase; letter-spacing:.04em; white-space:nowrap;
}
.verdict.blocked, .verdict.confirmed_phishing{background:var(--danger-soft); color:var(--danger);}
.verdict.screened, .verdict.suspected_scam, .verdict.unknown{background:var(--warn-soft); color:var(--warn);}
.verdict.passed, .verdict.legitimate, .verdict.sales_marketing{background:var(--safe-soft); color:var(--safe);}
.mock-foot{display:flex; align-items:center; gap:8px; margin-top:14px; font-size:12px; color:var(--text-dim);}
.mock-foot .pulse{width:6px; height:6px; border-radius:50%; background:var(--mint); animation:pulse 1.6s infinite;}
@keyframes pulse{0%,100%{opacity:1;} 50%{opacity:.25;}}

/* ---------- cta / signup block ---------- */
.signup{
  background:linear-gradient(180deg, var(--bg-card), var(--bg-elevated));
  border:1px solid var(--border); border-radius:24px; padding:64px 48px; text-align:center;
}
.signup h2{font-size:32px; max-width:560px; margin:0 auto;}
.signup p{color:var(--text-muted); margin-top:14px; font-size:15px;}
.signup-form{display:flex; gap:10px; max-width:420px; margin:30px auto 0;}
.signup-form input{
  flex:1; background:var(--bg); border:1px solid var(--border); border-radius:100px;
  padding:13px 18px; color:var(--text); font-size:14px; font-family:var(--font-body);
}
.signup-form input:focus{outline:none; border-color:var(--accent);}
.signup-note{font-size:12px; color:var(--text-dim); margin-top:16px;}
.form-msg{font-size:13px; margin-top:14px; min-height:18px;}
.form-msg.ok{color:var(--safe);}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--border); padding:52px 0 36px;}
.footer-grid{display:flex; justify-content:space-between; align-items:flex-start; gap:40px; flex-wrap:wrap;}
.footer-brand p{font-size:13px; color:var(--text-dim); margin-top:10px; max-width:280px;}
.footer-links{display:flex; gap:64px;}
.footer-col h4{font-size:12px; text-transform:uppercase; letter-spacing:.06em; color:var(--text-dim); font-weight:600; margin-bottom:14px;}
.footer-col a{display:block; font-size:13.5px; color:var(--text-muted); margin-bottom:10px;}
.footer-col a:hover{color:var(--text);}
.footer-bottom{margin-top:48px; padding-top:24px; border-top:1px solid var(--border); display:flex; justify-content:space-between; font-size:12.5px; color:var(--text-dim); flex-wrap:wrap; gap:12px;}

/* ---------- shared responsive rules ---------- */
@media (max-width:900px){
  nav{padding:14px 20px;}
  .nav-links{display:none;}
  .nav-links-mobile-only{display:block; margin-top:6px;}
  .nav-cta{display:none;}
  .brand{font-size:16px;}
  .brand .sub{display:none;}
  .menu-toggle{display:block;}
  .signup-form{flex-direction:column;}
}
@media (max-width:560px){
  .section h2{font-size:28px;}
  .signup{padding:44px 24px;}
}