/* ==========================================================================
   PEARL Products — shared design system
   ========================================================================== */

:root{
  --bg:#ffffff;
  --bg-elev:#f6f8fb;
  --bg-elev-2:#eef1f7;
  --bg-elev-3:#e6eaf3;
  --line:rgba(15,23,42,.08);
  --line-strong:rgba(15,23,42,.14);
  --text:#101828;
  --text-dim:#344054;
  --text-faint:#667085;
  --accent-a:#3161E8;
  --accent-b:#1F44B0;
  --accent-grad:linear-gradient(135deg,#3161E8 0%,#3E6FFF 50%,#1F44B0 100%);
  --accent-grad-soft:linear-gradient(135deg,rgba(49,97,232,.10),rgba(26,63,166,.08));
  --gold:#B7862E;
  --danger:#dc2626;
  --wash:rgba(15,23,42,.035);
  --wash-strong:rgba(15,23,42,.05);
  --radius-xl:28px;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:9px;
  --shadow-lg:0 30px 70px -28px rgba(15,23,42,.22);
  --shadow-md:0 16px 36px -20px rgba(15,23,42,.18);
  --font-display:'Inter',ui-sans-serif,system-ui,sans-serif;
  --font-body:'Inter',ui-sans-serif,system-ui,sans-serif;
  --font-mono:'Inter',ui-monospace,'SF Mono',monospace;
  --header-h:76px;
  --container:1180px;
}

*,*::before,*::after{box-sizing:border-box}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(900px 500px at 12% -10%, rgba(49,97,232,.06), transparent 60%),
    radial-gradient(700px 460px at 92% 8%, rgba(26,63,166,.05), transparent 55%),
    var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
::selection{background:var(--accent-a);color:#fff}
:focus-visible{outline:2px solid var(--accent-a);outline-offset:3px;border-radius:4px}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}
@media (max-width:640px){.container{padding:0 18px}}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;letter-spacing:-.01em;margin:0}
h1{font-size:clamp(2.4rem,5.4vw,4rem);line-height:1.06;letter-spacing:-.02em}
h2{font-size:clamp(1.7rem,3.2vw,2.5rem);line-height:1.14}
h3{font-size:1.25rem;line-height:1.3}

@media (max-width:640px){
  body{font-size:14.5px}
  h1{font-size:clamp(1.85rem,7.5vw,2.5rem)}
  h2{font-size:clamp(1.4rem,5.5vw,1.85rem)}
  h3{font-size:1.08rem}
  .eyebrow{font-size:.74rem}
}
p{margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8rem;color:var(--text-dim);
  font-weight:500;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-a);box-shadow:0 0 12px var(--accent-a)}

.mono{font-family:var(--font-mono)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:8px;font-weight:600;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent-grad);color:#ffffff;box-shadow:0 12px 30px -10px rgba(49,97,232,.55)}
.btn-primary:hover{box-shadow:0 16px 36px -10px rgba(49,97,232,.7);transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--hp-brand-soft,#5F86EA);color:var(--hp-ink)}
.btn-ghost:hover{border-color:var(--hp-brand,#3161E8);color:var(--hp-brand,#3161E8)}
.btn-sm{padding:9px 16px;font-size:.85rem}
.btn-block{width:100%}


/* ---------- Skip link (accessibility) ---------- */
.skip-link{
  position:absolute;left:-999px;top:auto;background:var(--accent-a);color:#ffffff;
  padding:10px 16px;border-radius:8px;z-index:200;font-weight:600;
}
.skip-link:focus{left:16px;top:16px}

/* ---------- Generic section/card utilities used across pages ---------- */
.section{padding:68px 0}
@media (max-width:760px){.section{padding:44px 0}}
.section-head{max-width:640px;margin-bottom:36px}
.section-head h2{margin-top:10px}
.section-head p{color:var(--text-dim);margin-top:14px;font-size:1.02rem}

.card{
  background:linear-gradient(180deg,var(--bg-elev-2),var(--bg-elev));
  border:1px solid var(--line);border-radius:var(--radius-lg);
}

/* ---------- Back to top ---------- */
.back-to-top{
  position:fixed;right:22px;bottom:22px;z-index:90;
  width:46px;height:46px;border-radius:50%;
  background:var(--accent-a);color:#ffffff;border:none;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 28px -10px rgba(49,97,232,.5);
  cursor:pointer;opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,box-shadow .2s ease,background .15s ease;
}
.back-to-top:hover{background:var(--accent-b)}
.back-to-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
@media (max-width:640px){.back-to-top{right:16px;bottom:16px;width:42px;height:42px}}

/* Arrow hover-slide on buttons (matches homepage) */
.btn .arrow{ display:inline-block; transition:transform .18s ease; line-height:1; }
.btn:hover .arrow{ transform:translateX(4px); }