/* Zubbin brand guidelines v1.0 (Option 1 / Folded signal): Graphite outside, Signal Orange inside. */
:root{
  --graphite-core:#141A20;--graphite:#202832;--graphite-02:#2D3945;
  --orange:#FF6A2A;--amber:#FF9558;--cloud:#F3F6F8;--white:#fff;
  --text:#202832;--muted:#5B6773;--line:#DDE3E8;
  --dark-text:#C9D1D9;--dark-muted:#8D99A5;--dark-line:#2D3945;
  --ok:#34C77B;--bad:#F0544F;
  --radius:12px;--shadow:0 1px 2px rgba(20,26,32,.06),0 8px 24px rgba(20,26,32,.06);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
body{background:var(--white);color:var(--text);font:400 17px/1.65 Manrope,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3{color:var(--graphite-core);letter-spacing:-.02em;line-height:1.1}
h1{font-weight:800;font-size:clamp(2.6rem,6vw,4.25rem)}
h2{font-weight:800;font-size:clamp(1.9rem,4vw,2.6rem);margin-bottom:.7rem}
h3{font-weight:700;font-size:1.12rem;margin-bottom:.4rem}
p+p{margin-top:.8rem}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.mono,.label{font-family:"IBM Plex Mono",ui-monospace,monospace}
.label{font-size:.78rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:1rem}
.label span{color:var(--orange)}
.lead{font-size:1.15rem;color:var(--muted);max-width:56ch;margin-top:.4rem}
.fine{font-size:.8rem;color:var(--dark-muted);margin-top:1.1rem}

/* header: icon + text label (full lockup is only used at 140px+) */
.nav{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;font-weight:800;font-size:1.2rem;color:var(--graphite-core);letter-spacing:-.01em}
.brand img{width:40px}
nav{display:flex;align-items:center;gap:1.6rem;font-weight:600;font-size:.92rem}
nav a{text-decoration:none;color:var(--muted);transition:color .3s var(--ease)}nav a:hover{color:var(--graphite-core)}

/* buttons: primary = Signal Orange with Graphite text; secondary = transparent, 1px Graphite 02 */
.btn{display:inline-block;font-weight:700;font-size:.95rem;text-decoration:none;padding:.8rem 1.3rem;border-radius:10px;border:1px solid var(--orange);background:var(--orange);color:var(--graphite-core)!important;transition:background .3s var(--ease),border-color .3s var(--ease)}
.btn:hover{background:var(--amber);border-color:var(--amber)}
.btn:focus-visible,.menu-btn:focus-visible,nav a:focus-visible{outline:2px solid var(--orange);outline-offset:3px}
.btn.ghost{background:transparent;border-color:var(--graphite-02);color:var(--graphite-core)!important}
.btn.ghost:hover{background:var(--cloud)}
.btn.sm{padding:.45rem .95rem;font-size:.86rem}
.cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}

/* hero: primary lockup on a light field, with generous clear space */
.hero{background:var(--cloud);padding:96px 0 104px}
.hero-in{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:center}
.lockup{justify-self:center;width:100%;max-width:340px;padding:12px}

.section{padding:96px 0}
.section.tight{padding:0 0 96px}
.checks{list-style:none;padding:0;margin-top:1.6rem;display:grid;gap:.7rem}
.checks li{position:relative;padding-left:1.9rem;font-weight:600;color:var(--graphite)}
.checks li:before{content:"";position:absolute;left:2px;top:.5rem;width:12px;height:12px;border-radius:3px;background:var(--orange);transform:skewX(-20deg)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:2.4rem}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px}
.card p{color:var(--muted);font-size:.97rem}
.custom{display:flex;align-items:center;justify-content:space-between;gap:40px;background:var(--cloud);box-shadow:none;padding:48px}
.custom p{color:var(--muted);max-width:58ch}

/* dark fields: Graphite Core */
.dark{background:var(--graphite-core);color:var(--dark-text);padding:96px 0}
.dark h2,.dark h3{color:var(--white)}
.dark .label{color:var(--dark-muted)}
.dark .checks li{color:var(--dark-text)}
.dark .btn.ghost{border-color:#4A5866;color:var(--white)!important}
.dark .btn.ghost:hover{background:var(--graphite)}
.sub{font-size:1.3rem;font-weight:700;color:var(--white);margin-bottom:.9rem}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}

/* Z UpTime panel, styled as a Zubbin "signal health" surface */
.panel{background:var(--graphite);border:1px solid var(--dark-line);border-radius:var(--radius);padding:26px;box-shadow:0 24px 48px rgba(0,0,0,.25)}
.panel .label{color:var(--orange);margin-bottom:.4rem}
.panel-sub{color:var(--dark-muted);font-size:.92rem}
.metric{font-size:2.6rem;font-weight:800;color:var(--white);letter-spacing:-.02em;margin:.4rem 0 1rem}
.metric .ok{font:500 .8rem "IBM Plex Mono",monospace;letter-spacing:.1em;text-transform:uppercase;margin-left:.6rem;vertical-align:middle}
.rows{font-size:.84rem}
.row{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-top:1px solid var(--dark-line)}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:.6rem}
.ok{color:var(--ok)}.dot.ok{background:var(--ok)}
.bad{color:var(--bad)}.dot.bad{background:var(--bad)}
.panel-foot{margin-top:12px;font-size:.78rem;color:var(--dark-muted)}

/* Z UpTime section: product brand (see Brand/Z UpTime guidelines) inside the Zubbin page */
.zut{--zut-navy:#022A5B;--zut-orange:#FD931D;--zut-teal:#249DA7;--zut-green:#38A553;--zut-lime:#8BBB50;--zut-muted:#A9B8C9;
  background:radial-gradient(120% 140% at 100% 0%,rgba(56,165,83,.28) 0%,rgba(36,157,167,.16) 35%,rgba(2,42,91,0) 65%),var(--zut-navy);color:#D5DEE8}
.zut .label{color:var(--zut-muted)}.zut .label span{color:var(--zut-lime)}
.zut-lockup{display:block;width:200px;margin:4px 0 10px}
.zut-tag{font-weight:700;color:var(--zut-orange);letter-spacing:.01em;margin-bottom:22px}
.zut .checks li{color:#D5DEE8}
.zut .checks li:before{background:var(--zut-green);border-radius:50%;transform:none;width:10px;height:10px;top:.55rem}
.zut .btn{background:var(--zut-orange);border-color:var(--zut-orange);color:var(--zut-navy)!important}
.zut .btn:hover{background:#FFAE4D;border-color:#FFAE4D}
.zut .btn.ghost{background:transparent;border-color:#6B7C91;color:#fff!important}
.zut .btn.ghost:hover{background:rgba(255,255,255,.06)}
.zut .fine{color:var(--zut-muted)}
.zut .panel{background:rgba(1,20,48,.55);border-color:rgba(36,157,167,.35)}
.zut .panel .label{color:var(--zut-teal)}
.zut .ok{color:var(--zut-green)}.zut .dot.ok{background:var(--zut-green)}
.zut .bad{color:#FF6B6F}.zut .dot.bad{background:#FF6B6F}
.zut .row{border-top-color:rgba(169,184,201,.18)}
.zut .metric .ok{color:#8BD69B}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.frags{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.frags span{aspect-ratio:1;border-radius:6px;background:linear-gradient(135deg,var(--graphite),var(--graphite-02))}
.frags span:nth-child(2){transform:translateY(26px);background:linear-gradient(160deg,var(--graphite-02),#46525E)}
.frags span:nth-child(4){transform:translateY(26px);background:linear-gradient(120deg,var(--graphite),#3A4652)}

.contact{text-align:center}.contact .lead{margin:0 auto 1.8rem}
.foot{border-top:1px solid var(--line);color:var(--muted);font-size:.88rem}
.foot-in{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem;padding-top:24px;padding-bottom:34px}
.foot-brand{display:flex;align-items:center;gap:.6rem}
.foot a{text-decoration:none}.foot a:hover{color:var(--graphite-core)}

.menu-btn{-webkit-tap-highlight-color:transparent;display:none;flex-direction:column;justify-content:center;gap:7px;width:44px;height:44px;padding:0 10px;background:none;border:0;cursor:pointer}
.menu-btn span{display:block;height:2px;background:var(--graphite-core);transition:transform .3s var(--ease)}
.menu-btn[aria-expanded="true"] span:first-child{transform:translateY(4.5px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:last-child{transform:translateY(-4.5px) rotate(-45deg)}

@media (max-width:860px){
  .wrap{padding:0 16px}
  .section{padding:72px 0}.section.tight{padding:0 0 72px}
  .hero{padding:48px 0 64px}
  .hero-in{grid-template-columns:1fr;gap:28px}
  .lockup{order:-1;max-width:190px;justify-self:start;padding:0}
  .split,.cards{grid-template-columns:1fr}.split{gap:40px}
  .custom{flex-direction:column;align-items:flex-start;padding:32px 22px}
  .dark{padding:72px 0}
  .nav .menu-btn{display:flex}
  nav{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px 16px 20px;box-shadow:0 12px 24px rgba(20,26,32,.08)}
  nav.open{display:flex}
  nav a{padding:14px 4px;font-size:1.05rem;border-bottom:1px solid var(--line)}
  nav a.btn{margin-top:14px;text-align:center;border-bottom:1px solid var(--orange);padding:.9rem}
  .cta .btn{flex:1 1 100%;text-align:center}
  .foot-in{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}