/* ── Mailpulse design system ─────────────────────────────────────────────
   Palette from the Mailpulse brand mark: ink indigo + teal pulse.
   Light, editorial, understated. One accent, used sparingly.            */

:root{
  --paper:#FAFAF9;
  --paper-2:#F2F8F6;
  --mist:#E9F4F1;
  --ink:#0C1626;
  --ink-2:#15123A;
  --ink-3:#100D2C;
  --muted:#4E5F66;
  --muted-2:#7E8F93;
  --muted-d:#9CC8C0;      /* muted on dark panels */
  --label-d:#CDEFE9;      /* labels on dark panels */
  --line:#E3EAE7;
  --line-2:#D4E1DD;
  --line-d:rgba(90,230,216,.16);
  --pulse:#14D6C4;
  --pulse-bright:#4FE6D8;
  --pulse-deep:#0B8B7F;
  --pulse-soft:#DCF6F2;
  --sans:'General Sans','Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,'Cascadia Mono',monospace;
  --wrap:1220px;
  --r:20px;
  --shadow-soft:0 30px 80px -32px rgba(12,22,38,.18);
  --shadow-card:0 16px 44px -20px rgba(12,22,38,.16);
  --ease:cubic-bezier(.22,.7,.16,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  font-weight:450;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-weight:600;line-height:1.05;letter-spacing:-0.03em;color:var(--ink)}
p{color:var(--muted)}
a{color:inherit;text-decoration:none}
img,svg,video{max-width:100%;display:block}
button{font:inherit}
::selection{background:var(--pulse);color:var(--ink)}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}

/* ── Type accents ── */
.eyebrow{
  font-family:var(--mono);font-size:12px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--pulse-deep);
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--pulse);box-shadow:0 0 12px var(--pulse)}
.eyebrow.d{color:var(--pulse)}
.sec-n{
  font-family:var(--mono);font-weight:500;font-size:clamp(13px,1.2vw,15px);
  color:var(--muted-2);letter-spacing:.08em;
}

/* ── Section rhythm (shared by every page) ── */
.sec{padding:clamp(92px,10.5vw,152px) 0}
.sec-tint{background:var(--paper-2)}
.sec-head{max-width:780px;margin:0 auto 76px;text-align:center}
.sec-head.left{margin:0 0 64px;text-align:left}
.sec-head h2{font-size:clamp(34px,4.8vw,66px);margin-top:20px;letter-spacing:-0.038em;line-height:1.0}
.sec-head .lead{font-size:clamp(16.5px,1.7vw,19.5px);margin-top:22px;line-height:1.65}

/* ── Buttons ── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--sans);font-weight:600;font-size:15.5px;
  padding:15px 30px;border-radius:999px;cursor:pointer;
  border:1.5px solid transparent;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s,background .2s,border-color .2s,color .2s;
}
.btn-primary{background:var(--pulse);color:var(--ink);box-shadow:0 10px 28px -10px rgba(20,214,196,.65)}
.btn-primary:hover{background:var(--pulse-bright);transform:translateY(-2px);box-shadow:0 16px 36px -12px rgba(20,214,196,.7)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(255,255,255,.65)}
.btn-ghost.d{color:#EAFBF7;border-color:var(--line-d)}
.btn-ghost.d:hover{border-color:var(--pulse);background:rgba(20,214,196,.08)}
.btn-ink{background:var(--ink-2);color:#fff}
.btn-ink:hover{background:var(--ink-3);transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible{outline:2.5px solid var(--pulse-deep);outline-offset:3px;border-radius:8px}
.btn:focus-visible{border-radius:999px}

/* ── Header ── */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(250,250,249,.72);
  -webkit-backdrop-filter:blur(18px) saturate(1.5);backdrop-filter:blur(18px) saturate(1.5);
  border-bottom:1px solid transparent;
  transition:border-color .3s,background .3s;
}
.site-header.scrolled{border-bottom-color:var(--line);background:rgba(250,250,249,.86)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{display:flex;align-items:center;gap:12px;font-weight:600;font-size:21px;letter-spacing:-0.02em;color:var(--ink)}
.logo svg{flex:none}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:14.5px;font-weight:500;color:var(--muted);transition:color .15s}
.nav-links a:hover{color:var(--ink)}
.nav .btn{padding:12px 24px;font-size:14.5px}

/* ── Pulse divider ── */
.pulse-divider{padding:0;line-height:0;overflow:hidden}
.pulse-divider svg{width:100%;height:64px;display:block}
.pulse-divider .track{stroke:var(--line-2);stroke-width:1.5;fill:none}
.pulse-divider .beat{
  stroke:var(--pulse);stroke-width:2.2;fill:none;
  stroke-linecap:round;stroke-linejoin:round;
  stroke-dasharray:1400;stroke-dashoffset:1400;
}
.pulse-divider.in .beat{transition:stroke-dashoffset 1.8s var(--ease);stroke-dashoffset:0}

/* ── Forms ── */
.form-card{
  background:rgba(255,255,255,.82);
  border:1px solid var(--line);
  border-radius:22px;padding:32px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);
}
.form-card h3{font-size:19px;margin-bottom:6px;letter-spacing:-0.02em}
.form-card .fp{font-size:14px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:15px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field input,.field textarea{
  width:100%;padding:13px 15px;
  border:1.5px solid var(--line-2);border-radius:12px;
  font-family:var(--sans);font-size:15.5px;color:var(--ink);
  background:#fff;transition:border-color .15s,box-shadow .15s;
}
.field input::placeholder,.field textarea::placeholder{color:var(--muted-2)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--pulse-deep);box-shadow:0 0 0 3px rgba(20,214,196,.18)}
.field textarea{resize:vertical;min-height:80px}
.form-card .btn{width:100%}
.form-micro{font-size:12.5px;color:var(--muted-2);margin-top:14px;text-align:center;line-height:1.55}
.hp{position:absolute !important;left:-9999px;width:1px;height:1px;overflow:hidden}

/* dark variant */
.form-card.dark{background:rgba(255,255,255,.05);border-color:var(--line-d)}
.form-card.dark h3{color:#fff}
.form-card.dark .fp,.form-card.dark .form-micro{color:var(--muted-d)}
.form-card.dark .field label{color:var(--label-d)}
.form-card.dark .field input,.form-card.dark .field textarea{
  background:rgba(8,14,28,.45);border-color:rgba(90,230,216,.22);color:#fff;
}
.form-card.dark .field input::placeholder,.form-card.dark .field textarea::placeholder{color:#6E8F95}
.form-card.dark .field input:focus,.form-card.dark .field textarea:focus{border-color:var(--pulse)}

/* ── Testimonial card (shared) ── */
.tcard{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:34px 32px;
  display:flex;flex-direction:column;gap:18px;
  transition:transform .25s var(--ease),box-shadow .25s;
}
.tcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-card)}
.tcard .mark{color:var(--pulse);height:22px}
.tcard blockquote{font-size:16px;line-height:1.68;color:var(--ink);font-weight:500;flex:1}
.tcard figcaption{display:flex;flex-direction:column;gap:2px;border-top:1px solid var(--line);padding-top:16px}
.tcard .tn{font-weight:600;color:var(--ink);font-size:14.5px}
.tcard .tc{font-size:13px;color:var(--muted-2)}

/* ── Compliance strip ── */
.comp-strip{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.comp-strip span{
  font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--muted);
  background:#fff;border:1px solid var(--line);
  padding:9px 15px;border-radius:999px;display:inline-flex;align-items:center;gap:8px;
}
.comp-strip span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--pulse)}
.comp-strip.d span{background:rgba(90,230,216,.07);border-color:var(--line-d);color:var(--label-d)}

/* ── Footer ── */
.site-footer{background:var(--ink-3);color:var(--muted-d);padding:84px 0 36px;position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;bottom:-240px;left:50%;transform:translateX(-50%);
  width:1500px;height:460px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(20,214,196,.15),transparent);pointer-events:none;
}
.foot-grid{display:grid;grid-template-columns:1.9fr 1fr 1fr 1.1fr;gap:44px;margin-bottom:56px;position:relative;z-index:1}
.foot-brand .logo{color:#fff;margin-bottom:18px}
.foot-brand p{font-size:14px;color:#87A8A1;max-width:36ch;line-height:1.7}
.foot-brand .tag{font-family:var(--mono);font-size:12px;color:var(--pulse);margin-top:16px;letter-spacing:.05em}
.foot-col h4{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--label-d);margin-bottom:16px;font-weight:600}
.foot-col a{display:block;font-size:14px;color:#87A8A1;padding:6px 0;transition:color .15s}
.foot-col a:hover{color:#fff}
.foot-bottom{
  border-top:1px solid var(--line-d);padding-top:26px;position:relative;z-index:1;
  display:flex;flex-wrap:wrap;gap:14px 30px;justify-content:space-between;align-items:flex-end;
}
.foot-bottom p{font-size:12.5px;color:#6E8F95;line-height:1.75;max-width:72ch}
.foot-bottom .copy{white-space:nowrap}

/* ── Reveal (JS-gated so no-JS users see everything) ── */
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* ── Legal / simple page template ── */
.page-hero{padding:160px 0 44px;border-bottom:1px solid var(--line)}
.legal-wrap{max-width:800px;margin:0 auto;padding:0 28px}
.page-hero h1{font-size:clamp(36px,5vw,58px);letter-spacing:-0.035em;margin-top:18px;line-height:1.03}
.page-hero .sub{font-size:17.5px;color:var(--muted);margin-top:18px;line-height:1.65;max-width:62ch}
.updated{font-family:var(--mono);font-size:13px;color:var(--muted-2);margin-top:16px}
.page-body{padding:56px 0 104px}
.page-body h2{font-size:24px;margin:48px 0 14px;letter-spacing:-0.02em}
.page-body h2:first-child{margin-top:0}
.page-body h2 .n{font-family:var(--mono);font-size:16px;color:var(--pulse-deep);margin-right:12px;font-weight:600}
.page-body h3{font-size:17px;margin:26px 0 8px}
.page-body p{font-size:16.5px;line-height:1.8;margin-bottom:16px}
.page-body ul{margin:0 0 20px;padding-left:22px}
.page-body li{font-size:16.5px;color:var(--muted);line-height:1.75;margin-bottom:10px}
.page-body strong{color:var(--ink);font-weight:600}
.page-body a{color:var(--pulse-deep);font-weight:500;text-decoration:underline;text-decoration-color:var(--pulse);text-underline-offset:3px}
.page-body a:hover{color:var(--ink)}
.note{background:var(--mist);border:1px solid var(--line);border-radius:16px;padding:22px 26px;margin:30px 0}
.note p{margin-bottom:0}
.cta-row{margin-top:44px;padding-top:36px;border-top:1px solid var(--line)}

/* ── Responsive ── */
@media (max-width:980px){
  .nav-links{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
  .sec-head{margin-bottom:56px}
}
@media (max-width:600px){
  .wrap{padding:0 20px}
  .foot-grid{grid-template-columns:1fr}
  .form-card{padding:26px 22px}
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
  .pulse-divider .beat{stroke-dashoffset:0}
}