/* DECODX v3 — design system */
:root{
  --bg:#07080c; --bg2:#0b0d14; --panel:#0e1119; --panel2:#12151f;
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.14);
  --text:#f2f4f8; --muted:#9aa3b2; --dim:#6b7280;
  --accent:#8b8df6; --accent-dim:rgba(139,141,246,.16);
  --green:#4ade9d; --warn:#f0b26b; --red:#f08a8a;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --wrap:1140px; --r:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
html,body{overflow-x:hidden}
body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px;top:0;background:var(--text);color:var(--bg);padding:8px 16px;z-index:100;border-radius:0 0 8px 0}
.skip:focus{left:0}

/* ---------- header ---------- */
.hdr{position:sticky;top:0;z-index:50;background:rgba(7,8,12,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.hdr-in{max-width:var(--wrap);margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.03em;font-size:16.5px}
.logo svg{height:21px;width:auto}
.nav{display:flex;gap:26px;margin-left:auto}
.nav a{font-size:14px;color:var(--muted);transition:color .15s}
.nav a:hover,.nav a[aria-current]{color:var(--text)}
.nav .nav-cta{display:none}
.hdr .btn{margin-left:8px}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line2);color:var(--text);border-radius:8px;padding:7px 12px;font:inherit;font-size:13px;cursor:pointer}
@media (max-width:880px){
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:8px 24px 16px}
  .nav.open{display:flex}
  .nav a{padding:10px 0;font-size:15px}
  .nav .nav-cta{display:flex;justify-content:center;margin-top:14px;background:var(--text);color:#0a0b10;border-radius:10px;padding:13px 22px;font-weight:600;font-size:15px}
  .menu-btn{display:block}
  .hdr .btn{display:none}
}

/* ---------- type ---------- */
.kicker{display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:20px}
.kicker::before{content:"";width:28px;height:1px;background:var(--accent)}
.kicker.neutral{color:var(--dim)}.kicker.neutral::before{background:var(--dim)}
h1{font-size:clamp(2.6rem,5.6vw,4.4rem);line-height:1.04;letter-spacing:-.03em;font-weight:700}
h2{font-size:clamp(1.7rem,3vw,2.4rem);line-height:1.12;letter-spacing:-.022em;font-weight:700}
h3{font-size:1.06rem;font-weight:600;letter-spacing:-.01em}
.lead{font-size:1.13rem;color:var(--muted);max-width:56ch;margin-top:22px}
.sub{color:var(--muted);max-width:60ch;margin-top:14px}
.small{font-size:.85rem;color:var(--dim)}
.mono{font-family:var(--mono)}

/* ---------- sections ---------- */
.sec{padding:88px 0}
.sec.tight{padding:64px 0}
.sec.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split.rev{grid-template-columns:.95fr 1.05fr}
.split>div{min-width:0}
@media (max-width:960px){.split,.split.rev{grid-template-columns:1fr;gap:40px}}

/* hero */
.hero{padding:96px 0 72px}
.hero .lead{font-size:1.2rem}
.hero-anim{animation:rise .5s cubic-bezier(.2,.7,.2,1) both}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.hero-anim{animation:none}}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.proof{margin-top:30px;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}
.proof b{color:var(--green);font-weight:500}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:10px;font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .15s,background .15s,border-color .15s}
.btn:active{transform:translateY(1px)}
.btn-pri{background:var(--text);color:#0a0b10}
.btn-pri:hover{background:#fff}
.btn-ghost{border-color:var(--line2);color:var(--text)}
.btn-ghost:hover{border-color:rgba(255,255,255,.35)}
.btn-acc{background:var(--accent);color:#0a0b10}
.btn-acc:hover{filter:brightness(1.08)}

/* reveal (JS-gated; content visible without JS) */
.r{opacity:0;transform:translateY(12px);transition:opacity .26s ease-out,transform .26s ease-out}
.r.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.r{opacity:1;transform:none;transition:none}}

/* stat strip */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--panel)}
.stats>div{padding:22px 24px;border-left:1px solid var(--line)}
.stats>div:first-child{border-left:0}
.stats b{display:block;font-size:1.5rem;font-weight:700;letter-spacing:-.02em}
.stats span{font-size:.82rem;color:var(--muted)}
@media (max-width:880px){.stats{grid-template-columns:1fr 1fr}.stats>div:nth-child(3){border-left:0}}

/* cards */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media (max-width:960px){.grid3,.grid4{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.grid2,.grid3,.grid4{grid-template-columns:1fr}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.card.hl{border-color:rgba(139,141,246,.4);background:linear-gradient(180deg,rgba(139,141,246,.07),var(--panel) 60%)}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);font-size:.95rem}
.card .num{font-family:var(--mono);font-size:12px;color:var(--accent);margin-bottom:14px;display:block}
.card ul{list-style:none;margin-top:6px}
.card li{color:var(--muted);font-size:.95rem;padding:7px 0 7px 22px;position:relative}
.card li::before{content:"—";position:absolute;left:0;color:var(--accent)}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;padding:7px 13px;border-radius:999px;border:1px solid var(--line2);color:var(--muted);display:inline-flex;align-items:center;gap:7px}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.chip.g i{background:var(--green)}.chip.w i{background:var(--warn)}.chip.r i{background:var(--red)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
@media (max-width:960px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.steps{grid-template-columns:1fr}}
.step{border-top:1px solid var(--line2);padding-top:18px}
.step b{display:block;font-family:var(--mono);font-size:12px;color:var(--accent);margin-bottom:10px}
.step h3{margin-bottom:8px}
.step p{color:var(--muted);font-size:.92rem}

/* ---------- product panels ---------- */
.panel{background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line2);border-radius:var(--r);overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.45)}
.panel-hd{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.panel-hd .tag{color:var(--dim);border:1px solid var(--line);border-radius:6px;padding:3px 8px;font-size:10.5px}
.panel-bd{padding:20px}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:640px){.kpis{grid-template-columns:1fr}}
.kpi{background:rgba(255,255,255,.025);border:1px solid var(--line);border-radius:10px;padding:14px 16px}
.kpi .lbl{font-size:.8rem;color:var(--muted);margin-bottom:6px}
.kpi .val{font-size:1.55rem;font-weight:700;letter-spacing:-.02em;display:flex;align-items:baseline;gap:8px}
.kpi .val em{font-style:normal;font-size:.8rem;font-weight:600;color:var(--green)}
.kpi .val em.down{color:var(--red)}
.kpi .conf{font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:var(--dim);margin-top:6px}
.bars{margin-top:18px}
.bar{display:grid;grid-template-columns:110px 1fr 34px;align-items:center;gap:14px;padding:7px 0}
.bar .lbl{font-size:.87rem;color:var(--muted)}
.bar .track{height:5px;border-radius:3px;background:rgba(255,255,255,.07);overflow:hidden}
.bar .fill{height:100%;border-radius:3px;background:linear-gradient(90deg,var(--accent),#a5a7ff)}
.bar .v{font-family:var(--mono);font-size:12px;color:var(--text);text-align:right}
.spark{margin-top:18px;background:rgba(255,255,255,.02);border:1px solid var(--line);border-radius:10px;padding:16px}
.spark .lbl{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);margin-bottom:10px}
.legend{display:flex;gap:18px;margin-top:10px;font-family:var(--mono);font-size:11px;color:var(--dim)}
.legend i{display:inline-block;width:14px;height:2px;vertical-align:middle;margin-right:6px;background:var(--accent)}
.legend .g i{background:var(--green)}
.rec{margin-top:18px;border:1px solid rgba(139,141,246,.4);background:rgba(139,141,246,.07);border-radius:10px;padding:16px 18px}
.rec .hd{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.rec .hd b{font-size:.95rem}
.rec .hd span{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:var(--dim)}
.rec p{font-size:.92rem;color:var(--muted)}
.rec .acts{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.rec .acts .a{font-size:12.5px;font-weight:600;padding:7px 14px;border-radius:8px;cursor:pointer}
.rec .acts .a.pri{background:var(--text);color:#0a0b10}
.rec .acts .a.gh{border:1px solid var(--line2)}
.risk{display:flex;flex-direction:column;gap:8px;margin-top:18px}
.risk .flag{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--warn);border:1px solid rgba(240,178,107,.35);background:rgba(240,178,107,.06);border-radius:8px;padding:9px 12px}
.convo{border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin-top:14px;background:rgba(255,255,255,.02)}
.convo .who{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:var(--dim);margin-bottom:8px}
.convo p{font-size:.93rem;color:var(--text)}
.convo .tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.convo .tags span{font-family:var(--mono);font-size:10px;letter-spacing:.05em;text-transform:uppercase;padding:4px 9px;border-radius:999px;border:1px solid var(--line2);color:var(--muted)}
/* heatmap */
.heat-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.heat{width:100%;min-width:400px;border-collapse:collapse;font-family:var(--mono);font-size:11.5px;margin-top:6px}
.heat th{color:var(--dim);font-weight:400;padding:8px 6px;text-align:center;letter-spacing:.04em}
.heat td{padding:0;border:2px solid var(--panel2)}
.heat td div{padding:11px 6px;text-align:center;color:#0a0b10;font-weight:600;border-radius:4px}
.heat .rowl{color:var(--muted);text-align:left;padding:8px 10px 8px 0;white-space:nowrap}

/* pricing */
.price-card{position:relative}
.price-card .price{font-size:2rem;font-weight:700;letter-spacing:-.02em;margin:10px 0 2px}
.price-card .per{font-size:.85rem;color:var(--dim)}
.price-card .meta{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);margin-top:10px}

/* form */
.form{display:grid;gap:16px}
.form label{font-size:.85rem;color:var(--muted);display:block;margin-bottom:6px}
.form input,.form select,.form textarea{width:100%;background:var(--panel);border:1px solid var(--line2);border-radius:9px;color:var(--text);padding:12px 14px;font:inherit;font-size:.95rem}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--accent)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){.form-row{grid-template-columns:1fr}}

/* CTA band */
.cta-band{padding:96px 0;text-align:center;background:radial-gradient(60% 120% at 50% 0%,rgba(139,141,246,.12),transparent 70%),var(--bg2);border-top:1px solid var(--line)}
.cta-band h2{max-width:22ch;margin:0 auto}
.cta-band .sub{margin:16px auto 0}
.cta-band .cta-row{justify-content:center}

/* footer */
.ftr{border-top:1px solid var(--line);padding:56px 0 40px;background:var(--bg)}
.ftr-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
@media (max-width:880px){.ftr-grid{grid-template-columns:1fr 1fr}}
.ftr h4{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin-bottom:14px;font-weight:500}
.ftr a{display:block;color:var(--muted);font-size:.9rem;padding:4px 0;transition:color .15s}
.ftr a:hover{color:var(--text)}
.ftr .tag{color:var(--muted);font-size:.9rem;max-width:30ch;margin-top:12px}
.ftr-btm{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.8rem;color:var(--dim)}

/* ---------- mobile refinements ---------- */
@media (max-width:640px){
  .sec{padding:56px 0}
  .sec.tight{padding:40px 0}
  .hero{padding:60px 0 44px}
  .kicker{letter-spacing:.1em;font-size:11px}
  .proof{font-size:11px;letter-spacing:.06em;line-height:1.8}
  .cta-band{padding:64px 0}
}
@media (max-width:480px){
  h1{font-size:clamp(1.9rem,7.8vw,2.4rem)}
  .lead{font-size:1.05rem}
  .stats{grid-template-columns:1fr}
  .stats>div{border-left:0;border-top:1px solid var(--line)}
  .stats>div:first-child{border-top:0}
}