/* ============================================================================
 * Nudanzics — "Señal" design system. Light by default, dark on toggle.
 * The page reads like a calibrated instrument: industrial display type
 * (Big Shoulders), monospace data/labels (IBM Plex Mono), a measurement-amber
 * signal accent beside the dashboard purple, and a vibration waveform as the
 * recurring divider. Fonts self-hosted (no third-party requests).
 * ========================================================================== */

@font-face{font-family:"Big Shoulders";src:url("/assets/fonts/BigShoulders-Regular.ttf") format("truetype");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Big Shoulders";src:url("/assets/fonts/BigShoulders-Bold.ttf") format("truetype");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Plex Mono";src:url("/assets/fonts/IBMPlexMono-Regular.ttf") format("truetype");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Plex Mono";src:url("/assets/fonts/IBMPlexMono-Bold.ttf") format("truetype");font-weight:700;font-style:normal;font-display:swap}

:root{
  --paper:#edf0f4; --ink:#14171e; --surface:#ffffff; --surface-2:#f4f6f9;
  --line:#d6dbe2; --line-soft:#e6e9ef; --muted:#586273; --faint:#98a1b1;
  --brand:#5f45e6; --brand-strong:#4d35cf; --signal:#c5821f; --signal-soft:rgba(197,130,31,.12);
  --crit:#e0314b; --ok:#0e9f6e;
  --f-display:"Big Shoulders","Arial Narrow",sans-serif;
  --f-mono:"Plex Mono",ui-monospace,"Cascadia Mono",Consolas,monospace;
  --f-body:-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --maxw:1080px;
}
:root[data-theme="dark"]{
  --paper:#0c0e13; --ink:#eceff6; --surface:#13161d; --surface-2:#10131a;
  --line:#272d39; --line-soft:#1c2129; --muted:#9aa3b5; --faint:#5a6478;
  --brand:#8b76ff; --brand-strong:#9a87ff; --signal:#e8b25a; --signal-soft:rgba(232,178,90,.14);
  --crit:#ef5e6f; --ok:#2fbf8f;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:var(--f-body);line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;transition:background .2s,color .2s}
a{color:inherit;text-decoration:none}
img,svg{display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
.mono{font-family:var(--f-mono)}
.tag{font-family:var(--f-mono);font-size:11.5px;letter-spacing:2.5px;text-transform:uppercase;color:var(--signal);font-weight:500}
.display{font-family:var(--f-display);font-weight:700;line-height:.92;letter-spacing:.5px;text-transform:uppercase}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* nav */
nav{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--paper) 82%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:24px;height:60px}
.logo{display:flex;align-items:center}
.logo .word{font-family:var(--f-body);font-weight:800;font-size:17px;letter-spacing:.18em;color:var(--brand)}
.nav-links{display:flex;gap:22px;margin-left:auto;font-family:var(--f-mono);font-size:12px;letter-spacing:1px;
  text-transform:uppercase;color:var(--muted)}
.nav-links a:hover{color:var(--ink)}
.nav-tools{display:flex;align-items:center;gap:12px}
.lang{display:flex;border:1px solid var(--line);border-radius:7px;overflow:hidden;font-family:var(--f-mono);font-size:11.5px}
.lang a{padding:5px 9px;color:var(--muted);letter-spacing:1px}
.lang a+a{border-left:1px solid var(--line)}
.lang a.active{color:var(--brand);font-weight:600}
.lang a:hover:not(.active){color:var(--ink)}
.icon-btn{width:32px;height:32px;display:grid;place-items:center;border:1px solid var(--line);border-radius:7px;
  background:var(--surface);color:var(--muted);cursor:pointer}
.icon-btn:hover{color:var(--ink);border-color:var(--brand)}
#themeBtn .sun{display:none}#themeBtn .moon{display:block}
:root[data-theme="dark"] #themeBtn .sun{display:block}:root[data-theme="dark"] #themeBtn .moon{display:none}
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-mono);font-weight:500;font-size:13px;
  letter-spacing:.5px;text-transform:uppercase;padding:13px 22px;border-radius:8px;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-strong)}
.btn-primary .arr{color:var(--signal)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand)}

/* hero */
.hero{padding:54px 0 34px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(42px,5.6vw,80px);margin:14px 0 0;max-width:13ch}
.hero-sub{color:var(--muted);font-size:clamp(15px,1.9vw,19px);margin-top:18px;max-width:42ch}
.hero-cta{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:26px}
.hero-cta .micro{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.5px;color:var(--muted)}

/* product panel card (hero + reused) */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px}
.panel-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:16px}
.pname{font-family:var(--f-display);font-weight:700;font-size:20px;text-transform:uppercase;letter-spacing:.3px;line-height:1}
.pname small{display:block;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.5px;color:var(--faint);text-transform:none;font-weight:400;margin-top:6px}
.pill{font-family:var(--f-mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--signal);
  background:var(--signal-soft);border:1px solid color-mix(in srgb,var(--signal) 40%,transparent);border-radius:6px;padding:4px 10px}
.gauge{display:flex;gap:18px;align-items:center;background:var(--surface-2);border:1px solid var(--line-soft);border-radius:11px;padding:16px;margin-bottom:12px}
.gauge svg{flex:0 0 auto}
.glabel{font-family:var(--f-mono);font-size:11px;letter-spacing:.5px;text-transform:uppercase;color:var(--muted)}
.grul{font-family:var(--f-mono);font-weight:700;font-size:26px;color:var(--signal);margin:3px 0 0;line-height:1}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:11px}
.chip{font-family:var(--f-mono);font-size:11px;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:5px 9px}
.chip b{color:var(--ink)}
.palert{display:flex;gap:10px;align-items:flex-start;background:var(--signal-soft);border:1px solid color-mix(in srgb,var(--signal) 32%,transparent);border-radius:11px;padding:12px 13px;font-size:13px;color:var(--ink);line-height:1.5}
.palert .i{color:var(--signal);font-weight:700;font-family:var(--f-display);font-size:18px;line-height:1}

/* trace divider */
.divider{height:30px;color:var(--line)}
.divider svg{width:100%;height:100%;display:block}

/* sections */
section{padding:62px 0}
.band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:34px;max-width:46ch}
.sec-head .tag{color:var(--brand)}
.sec-head .tag.crit{color:var(--crit)}
.sec-head h2{font-family:var(--f-display);font-weight:700;font-size:clamp(34px,5vw,58px);line-height:.94;
  text-transform:uppercase;letter-spacing:.5px;margin:8px 0 0}
.sec-head p{color:var(--muted);font-size:16px;margin-top:12px}

.grid4{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface)}
.pcard{padding:22px;border-right:1px solid var(--line-soft)}
.pcard:last-child{border-right:none}
.pcard .k{font-family:var(--f-mono);font-size:11px;color:var(--crit);letter-spacing:1px}
.pcard h3{font-family:var(--f-display);font-weight:700;font-size:21px;text-transform:uppercase;letter-spacing:.3px;margin:8px 0 8px;line-height:1}
.pcard p{color:var(--muted);font-size:13.5px}
.costline{margin-top:26px;display:flex;gap:18px;align-items:baseline;flex-wrap:wrap;border-left:3px solid var(--crit);padding:4px 0 4px 18px}
.costline b{font-family:var(--f-display);font-weight:700;font-size:30px;color:var(--crit);text-transform:uppercase;letter-spacing:.3px}
.costline span{color:var(--muted);font-size:15px;max-width:46ch}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:30px}
.step{padding-top:18px;border-top:2px solid var(--brand)}
.step .k{font-family:var(--f-mono);font-size:12px;color:var(--brand);letter-spacing:1px;text-transform:uppercase}
.step h3{font-family:var(--f-display);font-weight:700;font-size:23px;text-transform:uppercase;margin:6px 0 7px;line-height:1}
.step p{color:var(--muted);font-size:14px}
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feat{padding:18px;border:1px solid var(--line);border-radius:11px;background:var(--surface)}
.feat .k{font-family:var(--f-mono);color:var(--signal);font-size:12px;letter-spacing:1px}
.feat h4{font-family:var(--f-display);font-weight:700;font-size:18px;text-transform:uppercase;margin:8px 0 6px;line-height:1}
.feat p{color:var(--muted);font-size:13px}

/* producto: single current product */
.product-now{max-width:640px}
.pn-card{background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:26px}
.pn-card h3{font-family:var(--f-display);font-weight:700;font-size:26px;text-transform:uppercase;letter-spacing:.3px;line-height:1;margin-bottom:12px}
.pn-card p{color:var(--muted);font-size:15px;margin-bottom:14px}
.pn-note{font-size:14px}.pn-note b{color:var(--signal)}
.pn-card .btn{margin-top:6px}

/* panel snippets */
.panels{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.mini{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px}
.mini-top{display:flex;justify-content:space-between;align-items:center;font-family:var(--f-mono);font-size:11px;
  letter-spacing:1px;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.mini-tag{color:var(--brand);background:color-mix(in srgb,var(--brand) 12%,transparent);border-radius:5px;padding:2px 7px}
.trend,.bars,.fc{width:100%;display:block}
.trend{height:84px}.bars{height:78px}.fc{height:72px}
.hz{display:flex;justify-content:space-between;font-family:var(--f-mono);font-size:10.5px;color:var(--faint);margin-top:6px}
.mfoot{font-family:var(--f-mono);font-size:11.5px;color:var(--muted);margin-top:8px}.mfoot b{color:var(--crit)}
.reco{display:flex;gap:9px;align-items:flex-start;background:color-mix(in srgb,var(--ok) 12%,transparent);
  border:1px solid color-mix(in srgb,var(--ok) 34%,transparent);border-radius:9px;padding:10px 12px;font-size:13px;margin-bottom:11px;color:var(--ink)}
.dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto}
.dot.ok{background:var(--ok)}.dot.warn{background:var(--signal)}
.arows{display:flex;flex-direction:column;gap:10px}
.arow{display:flex;gap:9px;align-items:flex-start}.arow .dot{margin-top:5px}
.arow b{font-size:12.5px;display:block}.arow small{font-family:var(--f-mono);font-size:11px;color:var(--faint)}

/* FAQ */
.faq{max-width:760px;display:flex;flex-direction:column;gap:10px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:2px 18px}
.faq summary{cursor:pointer;list-style:none;padding:15px 0;font-family:var(--f-display);font-weight:700;font-size:18px;
  text-transform:uppercase;letter-spacing:.3px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--signal);font-family:var(--f-mono);font-weight:400;font-size:20px;flex:0 0 auto}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);font-size:14.5px;padding:0 0 16px}

/* demo */
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
.demo h2{font-family:var(--f-display);font-weight:700;font-size:clamp(30px,4.4vw,52px);text-transform:uppercase;line-height:.94;margin:8px 0 12px}
.demo p{color:var(--muted);font-size:16px;margin-bottom:10px}
.form{display:grid;grid-template-columns:1fr 1fr;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px}
.form .full{grid-column:1/-1}
.form label{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.5px;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:5px}
.form input,.form textarea{width:100%;background:var(--surface-2);border:1px solid var(--line);border-radius:8px;
  padding:10px 12px;color:var(--ink);font-family:inherit;font-size:14px}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--brand)}
.form textarea{min-height:74px;resize:vertical}
.privacy{font-family:var(--f-mono);font-size:11px;color:var(--faint);margin-top:11px;text-align:center;letter-spacing:.3px}

/* footer */
footer{border-top:1px solid var(--line);padding:42px 0 50px;color:var(--muted)}
.foot-top{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:22px}
.foot-top .big{font-family:var(--f-display);font-weight:700;font-size:clamp(40px,8vw,88px);color:var(--ink);
  text-transform:uppercase;letter-spacing:.06em;line-height:.9}
.foot-links{display:flex;gap:20px;font-family:var(--f-mono);font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.foot-links a:hover{color:var(--ink)}
.copy{font-family:var(--f-mono);font-size:11px;color:var(--faint);margin-top:26px;letter-spacing:.5px}

/* legal pages */
.legal{max-width:760px;margin:0 auto;padding:50px 0 64px}
.legal h1{font-family:var(--f-display);font-weight:700;font-size:clamp(34px,6vw,56px);text-transform:uppercase;letter-spacing:.5px;line-height:.95;margin-bottom:8px}
.legal .updated{font-family:var(--f-mono);font-size:11px;letter-spacing:.5px;color:var(--faint);margin-bottom:28px}
.legal h2{font-family:var(--f-display);font-weight:700;font-size:20px;text-transform:uppercase;letter-spacing:.3px;margin:28px 0 8px}
.legal p,.legal li{color:var(--muted);font-size:15px;margin-bottom:10px;line-height:1.6}
.legal ul{padding-left:20px;margin-bottom:12px}
.legal a{color:var(--brand)}
.legal .note{font-family:var(--f-mono);font-size:12.5px;background:var(--surface-2);border:1px solid var(--line);border-radius:9px;padding:13px 15px;color:var(--muted);margin:18px 0;line-height:1.5}
.legal .back{display:inline-block;margin-top:28px;font-family:var(--f-mono);font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--brand)}

@media(max-width:860px){
  .hero-grid,.steps,.feats,.panels,.demo-grid{grid-template-columns:1fr}
  .grid4{grid-template-columns:1fr 1fr}.pcard:nth-child(2){border-right:none}
  .pcard{border-bottom:1px solid var(--line-soft)}
  .nav-links{display:none}
}