/* ============================================================
   attral.energy — shared design system (v2, 2026-07-17)
   One coherent look for every marketing page, matching the
   homepage: dark ink, emerald→lime gradient, Space Grotesk.
   Loaded by all inner pages; the homepage inlines the same
   tokens for zero-request first paint.
   ============================================================ */
:root{
  color-scheme:dark;
  --ink:#0A0F0D;--ink-2:#0E1815;--surface:#111A17;--surface-2:#16211D;
  --line:rgba(168,255,96,.10);--line-soft:rgba(255,255,255,.07);
  --text:#E9F1EC;--muted:#93A69D;--muted-2:#6F827A;
  --emerald:#00E58F;--lime:#A8FF60;--amber:#FFC24B;--blue:#38BDF8;--red:#FF6B6B;
  --grad:linear-gradient(120deg,#00E58F 0%,#A8FF60 100%);
  --grad-soft:linear-gradient(120deg,rgba(0,229,143,.16),rgba(168,255,96,.10));
  --radius:16px;--maxw:1180px;
  --fd:'Space Grotesk',system-ui,sans-serif;--fb:'Inter',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
body{background:radial-gradient(680px 420px at 88% -8%,rgba(0,229,143,.10),transparent 70%),var(--ink);color:var(--text);font-family:var(--fb);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,h4{font-family:var(--fd);font-weight:600;line-height:1.12;letter-spacing:-.02em;text-wrap:balance;overflow-wrap:anywhere}
p{overflow-wrap:anywhere}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{font-family:var(--fd);font-size:13px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--emerald)}
.muted{color:var(--muted)}

/* accessibility */
.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--grad);color:#062012;font-family:var(--fd);font-weight:600;padding:12px 20px;border-radius:0 0 12px 0}
.skip:focus{left:0}
:focus-visible{outline:2px solid var(--emerald);outline-offset:2px;border-radius:4px}
::selection{background:rgba(0,229,143,.30)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--fd);font-weight:500;font-size:15px;padding:12px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:.2s ease;white-space:nowrap}
.btn-primary{background:var(--grad);color:#062012;box-shadow:0 8px 30px -8px rgba(0,229,143,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px -10px rgba(0,229,143,.6)}
.btn-ghost{border-color:var(--line-soft);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--emerald);color:var(--emerald)}

/* header / nav */
.site-head{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(10,15,13,.78);border-bottom:1px solid var(--line-soft)}
.nav-row{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.logo{display:flex;align-items:center;gap:11px;font-family:var(--fd);font-weight:600;font-size:20px;letter-spacing:-.02em}
.logo svg{width:30px;height:30px;flex:none}
.logo .tld{color:var(--muted-2);font-weight:400}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:15px;color:var(--muted);transition:.15s}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--text)}
.nav-cta{display:flex;align-items:center;gap:14px}
.menu-btn{display:none;background:none;border:0;color:var(--text);cursor:pointer;padding:8px}
@media(max-width:940px){
  .nav-links{display:none}
  .menu-btn{display:block}
  .site-head.open .nav-links{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:rgba(10,15,13,.98);border-bottom:1px solid var(--line-soft);padding:8px 24px 16px}
  .site-head.open .nav-links a{padding:13px 4px;border-bottom:1px solid var(--line-soft);font-size:16px}
  .site-head.open .nav-links a:last-child{border-bottom:0}
  .nav-cta .btn-ghost{display:none}
}
@media(max-width:520px){.nav-cta .btn-primary{padding:10px 16px;font-size:14px}}

/* page hero */
.page-hero{position:relative;padding:72px 0 44px;overflow:hidden}
.page-hero .orb{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0;width:520px;height:520px;background:radial-gradient(circle,#00E58F,transparent 70%);top:-220px;right:-160px;opacity:.20}
.page-hero>.wrap{position:relative;z-index:1}
.page-hero h1{font-size:clamp(34px,4.8vw,54px);font-weight:700;max-width:820px;margin:14px 0 0}
.page-hero .lead{font-size:19px;color:var(--muted);margin-top:20px;max-width:680px}
.page-hero .hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}

/* sections */
section{padding:64px 0}
.sec-head{max-width:660px;margin:0 auto 44px;text-align:center}
.sec-head h2{font-size:clamp(28px,3.6vw,40px);margin:14px 0 14px}
.sec-head p{font-size:17.5px;color:var(--muted)}
.sec-head.left{margin:0 0 34px;text-align:left}

/* media figure */
.media{border:1px solid var(--line-soft);border-radius:18px;overflow:hidden;background:var(--surface);box-shadow:0 40px 70px -40px rgba(0,0,0,.6);margin-top:36px}
.media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/7}
.media.tall img{aspect-ratio:16/9}

/* card grids */
.g-2,.g-3,.g-4{display:grid;gap:18px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.card{border:1px solid var(--line-soft);border-radius:var(--radius);padding:26px 24px;background:linear-gradient(180deg,var(--surface),var(--ink-2));transition:.25s}
.card:hover{border-color:var(--line);transform:translateY(-3px)}
.card h3{font-size:19px;margin-bottom:9px}
.card p{color:var(--muted);font-size:14.5px}
.card .ic{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;background:var(--grad-soft);border:1px solid var(--line);margin-bottom:16px}
.card .ic svg{width:24px;height:24px;color:var(--emerald)}
a.card{display:block}
.card .meta{font-size:12.5px;color:var(--muted-2);margin-top:12px;font-family:var(--fd)}

/* metrics band */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{text-align:center;padding:8px}
.metric .big{font-family:var(--fd);font-size:clamp(30px,3.6vw,42px);font-weight:700}
.metric .lbl{color:var(--muted);font-size:14px;margin-top:6px}

/* check list */
.fx-list{list-style:none;display:flex;flex-direction:column;gap:11px}
.fx-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px}
.fx-list li svg{width:18px;height:18px;color:var(--emerald);flex:none;margin-top:3px}

/* split feature */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split .eyebrow{display:block;margin-bottom:14px}
.split h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.split p{color:var(--muted);font-size:16px;margin-bottom:18px}

/* numbered steps */
.steps{display:grid;gap:14px;counter-reset:step}
.steps article{counter-increment:step;display:grid;grid-template-columns:46px 1fr;gap:16px;align-items:start;padding:20px;border:1px solid var(--line-soft);border-radius:var(--radius);background:linear-gradient(180deg,var(--surface),var(--ink-2))}
.steps article::before{content:counter(step);width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--grad);color:#062012;font-family:var(--fd);font-weight:600}
.steps h3{font-size:17px;margin-bottom:5px}
.steps p{color:var(--muted);font-size:14.5px}

/* CTA band */
.cta-band{position:relative;border:1px solid var(--line);border-radius:26px;background:var(--grad-soft);padding:56px 40px;text-align:center;overflow:hidden}
.cta-band h2{font-size:clamp(26px,3.6vw,38px);margin-bottom:12px}
.cta-band p{color:var(--muted);font-size:17px;max-width:540px;margin:0 auto 26px}
.cta-band .hero-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}

/* article / prose (blog posts, legal) */
.prose{max-width:760px}
.prose h2{font-size:24px;margin:38px 0 14px}
.prose h3{font-size:19px;margin:28px 0 10px}
.prose p{color:#B4C4BC;font-size:16.5px;margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 18px 22px;color:#B4C4BC;font-size:16.5px}
.prose li{margin:8px 0}
.prose strong{color:var(--text)}
.prose a{color:var(--emerald);text-decoration:underline;text-decoration-color:rgba(0,229,143,.4);text-underline-offset:3px}
.prose blockquote{border-left:3px solid var(--emerald);padding:6px 0 6px 18px;margin:0 0 18px;color:var(--muted);font-style:italic}
.prose code{font-family:Consolas,ui-monospace,monospace;font-size:14px;background:var(--ink-2);border:1px solid var(--line-soft);border-radius:6px;padding:2px 6px;color:var(--lime)}
.prose pre{background:var(--ink-2);border:1px solid var(--line-soft);border-radius:12px;padding:16px;overflow-x:auto;margin:0 0 18px}
.prose pre code{background:none;border:0;padding:0;color:#dff4ee;font-size:13px;line-height:1.55}
.post-meta{display:flex;gap:14px;align-items:center;color:var(--muted-2);font-size:13.5px;font-family:var(--fd);margin-top:14px}
.post-meta .dot-sep{width:3px;height:3px;border-radius:50%;background:var(--muted-2)}
.tag-pill{display:inline-flex;align-items:center;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--lime);background:var(--grad-soft);border:1px solid var(--line);border-radius:999px;padding:4px 12px;font-family:var(--fd)}

/* FAQ */
.faq{max-width:760px;margin:0 auto}
.faq details{border:1px solid var(--line-soft);border-radius:14px;background:linear-gradient(180deg,var(--surface),var(--ink-2));margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px;padding:18px 22px;font-family:var(--fd);font-weight:500;font-size:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--emerald);flex:none;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 22px 18px;color:var(--muted);font-size:15px}

/* forms */
.c-form{display:grid;gap:14px}
.c-form label{display:grid;gap:6px;font-family:var(--fd);font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.c-form input,.c-form select,.c-form textarea{width:100%;background:var(--ink-2);border:1px solid var(--line-soft);border-radius:10px;padding:12px 14px;color:var(--text);font-size:15px;font-family:var(--fb)}
.c-form input:focus,.c-form select:focus,.c-form textarea:focus{outline:0;border-color:var(--emerald)}
.c-form textarea{min-height:120px;resize:vertical}
.form-note{font-size:12.5px;color:var(--muted-2)}
.form-status{font-size:14px;min-height:20px}
.form-status.ok{color:var(--emerald)}
.form-status.err{color:var(--red)}
.panel{border:1px solid var(--line-soft);border-radius:var(--radius);padding:28px;background:linear-gradient(180deg,var(--surface),var(--ink-2))}

/* footer */
footer.site-foot{border-top:1px solid var(--line-soft);padding:60px 0 34px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;margin-bottom:44px}
.foot-grid .logo{margin-bottom:14px}
.foot-brand p{color:var(--muted);font-size:14px;max-width:280px}
.foot-col h4{font-family:var(--fd);font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted-2);margin-bottom:16px;font-weight:600}
.foot-col a{display:block;color:var(--muted);font-size:14.5px;margin-bottom:11px;transition:.15s}
.foot-col a:hover{color:var(--emerald)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:26px;border-top:1px solid var(--line-soft);color:var(--muted-2);font-size:13.5px;flex-wrap:wrap;gap:12px}

/* responsive */
@media(max-width:900px){
  .g-3,.g-4{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:30px}
  .foot-grid{grid-template-columns:1fr 1fr}
  section{padding:52px 0}
}
@media(max-width:560px){
  .g-2,.g-3,.g-4{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .page-hero{padding:52px 0 36px}
  .media img{aspect-ratio:16/10}
}

/* print */
@media print{
  body{background:#fff;color:#111}
  .site-head,.nav-cta,.menu-btn,.cta-band,footer.site-foot,.skip{display:none}
  a{color:#111}
  .card,.panel{border:1px solid #ccc;background:#fff}
  .prose p,.prose ul,.prose ol{color:#222}
}