/* NAPELL BANK — coffee collateral infrastructure
   X.com dark chrome. Flat surfaces, thin borders, tabular numerals. */

:root{
  --bg:#000000;
  --bg-2:#0a0b0d;
  --card:#16181c;
  --card-2:#1c1f23;
  --border:#2f3336;
  --border-2:#3f4448;
  --text:#e7e9ea;
  --muted:#71767b;
  --dim:#536471;
  --accent:#1d9bf0;
  --accent-soft:rgba(29,155,240,.10);
  --up:#00ba7c;
  --down:#f4212e;
  --warn:#ffd400;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --max:1180px;
  --nav-h:60px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:15px;
  line-height:1.6;
  padding-top:var(--nav-h);
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(29,155,240,.35);color:#fff}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  background:rgba(0,0,0,.78);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  max-width:var(--max);margin:0 auto;height:100%;padding:0 24px;
  display:flex;align-items:center;gap:32px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em;font-size:19px;white-space:nowrap}
.brand .mark{
  width:27px;height:27px;border-radius:7px;background:var(--accent);
  display:grid;place-items:center;font-size:13.5px;font-weight:700;color:#000;letter-spacing:0;
}
.brand .b2{color:var(--muted);font-weight:500}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1}
.nav-links a{
  padding:7px 12px;border-radius:8px;font-size:14px;color:var(--muted);
  transition:color .15s,background .15s;white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-links a.on{color:var(--text);font-weight:600;background:rgba(255,255,255,.08)}
.nav-right{display:flex;align-items:center;gap:10px}
.lang{display:flex;border:1px solid var(--border);border-radius:99px;overflow:hidden}
.lang button{
  background:none;border:0;color:var(--muted);font-family:var(--sans);
  font-size:12px;padding:5px 11px;cursor:pointer;transition:.15s;
}
.lang button.on{background:var(--text);color:#000;font-weight:600}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--text);color:#000;border:0;border-radius:99px;
  font-family:var(--sans);font-size:14px;font-weight:600;
  padding:9px 20px;cursor:pointer;transition:.15s;white-space:nowrap;
}
.btn:hover{background:#d0d3d6}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--border-2)}
.btn.ghost:hover{background:rgba(255,255,255,.06)}
.btn.sm{padding:7px 15px;font-size:13px}
.burger{display:none;background:none;border:0;color:var(--text);cursor:pointer;padding:6px}

/* ---------- layout ---------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:72px 0}
section.tight{padding:48px 0}
.sec-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.20em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
h1{font-size:clamp(36px,5vw,62px);line-height:1.04;letter-spacing:-.035em;font-weight:700}
h2{font-size:clamp(24px,3vw,34px);line-height:1.15;letter-spacing:-.025em;font-weight:700}
h3{font-size:17px;line-height:1.3;letter-spacing:-.01em;font-weight:600}
h4{font-size:14px;font-weight:600;letter-spacing:-.005em}
.lead{font-size:17px;line-height:1.62;color:var(--muted);margin-top:20px;max-width:680px}
p.mut{color:var(--muted);font-size:14.5px;line-height:1.65}
.hl{color:var(--accent)}
.rule{height:1px;background:var(--border);margin:0}

.hero{padding:104px 0 80px;position:relative;overflow:hidden}
.hero:before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(900px 380px at 78% -10%,rgba(29,155,240,.13),transparent 62%);
  pointer-events:none;
}
.hero .wrap{position:relative}
.hero-cta{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
.hero-note{margin-top:26px;font-size:12.5px;color:var(--dim);font-family:var(--mono);letter-spacing:.02em}

/* ---------- kpi ---------- */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:52px}
.kpi{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px 20px}
.kpi .k{font-size:11.5px;color:var(--muted);letter-spacing:.04em;text-transform:uppercase;font-family:var(--mono)}
.kpi .v{font-size:28px;font-weight:600;letter-spacing:-.03em;margin-top:8px;font-variant-numeric:tabular-nums}
.kpi .v small{font-size:14px;font-weight:500;color:var(--muted);margin-left:3px;letter-spacing:0}
.kpi .n{font-size:12px;color:var(--dim);margin-top:4px}

/* ---------- cards & grids ---------- */
.g2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:24px;transition:border-color .2s,background .2s;
}
.card.pad-lg{padding:30px}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);font-size:14px;line-height:1.62}
.card .idx{
  font-family:var(--mono);font-size:11px;color:var(--accent);
  letter-spacing:.14em;margin-bottom:14px;display:block;
}
a.card:hover{border-color:var(--border-2);background:var(--card-2)}
.card .arrow{margin-top:16px;font-size:13px;color:var(--accent);font-weight:600}

/* ---------- formula ---------- */
.formula{
  background:var(--bg-2);border:1px solid var(--border);border-radius:12px;
  padding:22px 24px;font-family:var(--mono);font-size:13.5px;line-height:2.05;
  overflow-x:auto;
}
.formula .op{color:var(--accent)}
.formula .cm{color:var(--dim)}
.formula .k{color:var(--warn)}

/* ---------- tables ---------- */
.tw{overflow-x:auto;border:1px solid var(--border);border-radius:14px;background:var(--card)}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:560px}
thead th{
  text-align:left;font-family:var(--mono);font-size:10.5px;letter-spacing:.13em;
  text-transform:uppercase;color:var(--muted);font-weight:500;
  padding:13px 16px;border-bottom:1px solid var(--border);background:rgba(255,255,255,.02);
  white-space:nowrap;
}
tbody td{padding:13px 16px;border-bottom:1px solid rgba(47,51,54,.6);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(255,255,255,.02)}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}
.up{color:var(--up)}
.down{color:var(--down)}
.mono{font-family:var(--mono);font-size:12.5px;color:var(--muted)}

/* ---------- layers diagram ---------- */
.layers{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.layer{
  display:grid;grid-template-columns:120px 1fr auto;align-items:center;gap:20px;
  background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px 22px;
}
.layer .tag{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}
.layer .body h4{margin-bottom:4px}
.layer .body p{color:var(--muted);font-size:13.5px;margin:0}
.layer .val{font-family:var(--mono);font-size:12px;color:var(--dim);text-align:right;white-space:nowrap}

/* ---------- calculator ---------- */
.calc{display:grid;grid-template-columns:1fr 1.08fr;gap:20px;align-items:start}
.panel{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px}
.panel-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:20px}
.panel-head h3{font-size:15px}
.panel-head .hint{font-family:var(--mono);font-size:11px;color:var(--dim)}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:11.5px;color:var(--muted);font-family:var(--mono);letter-spacing:.05em;text-transform:uppercase}
.field input,.field select{
  background:var(--bg-2);border:1px solid var(--border);border-radius:8px;
  color:var(--text);font-family:var(--mono);font-size:14px;padding:10px 12px;
  width:100%;outline:none;transition:border-color .15s;
  font-variant-numeric:tabular-nums;
}
.field input:focus,.field select:focus{border-color:var(--accent)}
.field .unit{font-size:11px;color:var(--dim);font-family:var(--mono)}
.field input[type=range]{padding:0;height:26px;background:none;border:0;-webkit-appearance:none;appearance:none}
.field input[type=range]::-webkit-slider-runnable-track{height:3px;background:var(--border-2);border-radius:99px}
.field input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:13px;height:13px;border-radius:50%;background:var(--accent);
  margin-top:-5px;cursor:pointer;
}
.field input[type=range]::-moz-range-track{height:3px;background:var(--border-2);border-radius:99px}
.field input[type=range]::-moz-range-thumb{width:13px;height:13px;border:0;border-radius:50%;background:var(--accent);cursor:pointer}

.res-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.metric{background:var(--bg-2);border:1px solid var(--border);border-radius:10px;padding:14px 16px}
.metric .k{font-size:11px;color:var(--muted);font-family:var(--mono);letter-spacing:.05em}
.metric .v{font-size:24px;font-weight:600;letter-spacing:-.028em;margin-top:5px;font-variant-numeric:tabular-nums}
.metric .v.big{font-size:30px;color:var(--accent)}
.metric .s{font-size:11.5px;color:var(--dim);margin-top:3px;font-family:var(--mono)}
.metric.ok .v{color:var(--up)}
.metric.bad .v{color:var(--down)}

.gauge{margin-top:20px}
.gauge-top{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:var(--muted);margin-bottom:8px}
.gauge-bar{position:relative;height:10px;border-radius:99px;background:linear-gradient(90deg,#0b3d2e 0%,#123f2e 42%,#3a2a0a 60%,#3d1518 78%,#4a1216 100%)}
.gauge-fill{position:absolute;inset:0 auto 0 0;border-radius:99px;background:rgba(29,155,240,.28);border-right:2px solid var(--accent)}
.gauge-marks{position:relative;height:22px;margin-top:2px}
.gauge-marks span{position:absolute;top:0;transform:translateX(-50%);font-family:var(--mono);font-size:10px;color:var(--dim);white-space:nowrap}
.gauge-marks span:before{content:"";position:absolute;left:50%;top:-11px;width:1px;height:9px;background:var(--border-2)}

.status{margin-top:18px;padding:13px 16px;border-radius:10px;font-size:13.5px;border:1px solid}
.status.ok{background:rgba(0,186,124,.07);border-color:rgba(0,186,124,.3);color:#7fe0c0}
.status.warn{background:rgba(255,212,0,.06);border-color:rgba(255,212,0,.28);color:#e8c96a}
.status.bad{background:rgba(244,33,46,.07);border-color:rgba(244,33,46,.3);color:#f49098}

/* ---------- misc ---------- */
.tagline{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.pill{
  font-family:var(--mono);font-size:11px;letter-spacing:.05em;color:var(--muted);
  border:1px solid var(--border);border-radius:99px;padding:5px 12px;
}
.pill.a{color:var(--accent);border-color:rgba(29,155,240,.35);background:var(--accent-soft)}

.quote{
  border-left:2px solid var(--accent);padding:4px 0 4px 20px;
  font-size:16px;line-height:1.6;color:var(--text);margin:28px 0;
}
.quote cite{display:block;font-style:normal;font-size:12.5px;color:var(--dim);margin-top:10px;font-family:var(--mono)}

.rulelist{list-style:none;display:flex;flex-direction:column;gap:12px}
.rulelist li{display:flex;gap:14px;align-items:flex-start;font-size:14.5px;color:var(--muted);line-height:1.55}
.rulelist li b{color:var(--text);font-weight:600}
.rulelist .n{
  flex:0 0 auto;width:22px;height:22px;border-radius:6px;background:var(--accent-soft);
  color:var(--accent);font-family:var(--mono);font-size:11px;display:grid;place-items:center;margin-top:1px;
}

.chart{width:100%;height:320px}
.chart-sm{width:100%;height:260px}

.callout{
  background:var(--bg-2);border:1px solid var(--border);border-left:2px solid var(--warn);
  border-radius:10px;padding:18px 20px;font-size:14px;color:var(--muted);line-height:1.62;
}
.callout b{color:var(--text)}

.c-cta{
  background:linear-gradient(180deg,rgba(29,155,240,.08),transparent);
  border:1px solid var(--border);border-radius:18px;padding:44px;text-align:center;
}
.c-cta h2{max-width:640px;margin:0 auto}
.c-cta p{color:var(--muted);margin:14px auto 26px;max-width:560px}

footer{border-top:1px solid var(--border);padding:48px 0 40px;margin-top:24px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.foot-brand p{color:var(--dim);font-size:12.5px;line-height:1.6;margin-top:12px;max-width:280px}
.foot-col h5{font-size:11px;font-family:var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-bottom:12px;font-weight:500}
.foot-col a{display:block;font-size:13.5px;color:var(--dim);padding:4px 0;transition:color .15s}
.foot-col a:hover{color:var(--text)}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:11.5px;color:var(--dim);font-family:var(--mono);
}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .kpis{grid-template-columns:repeat(2,1fr)}
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:1fr}
  .calc{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .layer{grid-template-columns:1fr;gap:8px}
  .layer .val{text-align:left}
}
@media (max-width:860px){
  .nav-links{
    display:none;position:absolute;top:var(--nav-h);left:0;right:0;
    background:rgba(0,0,0,.97);border-bottom:1px solid var(--border);
    flex-direction:column;align-items:stretch;padding:12px;gap:2px;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;font-size:15px}
  .burger{display:block}
  .nav-right .btn{display:none}
  .hero{padding:64px 0 56px}
  section{padding:52px 0}
  .g2{grid-template-columns:1fr}
  .g4{grid-template-columns:1fr}
  .fields{grid-template-columns:1fr}
  .res-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .c-cta{padding:30px 22px}
  h1{font-size:34px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}