/* StoreStreamer public Help Centre — matches landingpage visual system */
:root{
  --deep-purple:#5E2080;
  --mid-purple:#7A2CA0;
  --bright-blue:#0070C0;
  --royal-blue:#0048B0;
  --cyan-teal:#00A0A0;
  --aqua-teal:#00B8C8;
  --dark-navy:#103090;
  --light-cyan:#38C8F0;
  --canvas:#F0F0F0;
  --surface:#ffffff;
  --ink:#0f172a;
  --muted:#334155;
  --soft:#475569;
  --line:#d4d4d8;
  --accent:var(--bright-blue);
  --accent-2:var(--cyan-teal);
  --brand-gradient:linear-gradient(135deg,var(--cyan-teal) 0%,var(--bright-blue) 45%,var(--mid-purple) 100%);
  --text-on-gradient:rgba(255,255,255,0.94);
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .btn,.nav-toggle,.nav-toggle-bars,.nav-toggle-bars::before,.nav-toggle-bars::after,.category-card,.article-card{transition:none !important;animation:none !important;}
}

body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--canvas);
  color:var(--ink);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}

a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--light-cyan);
  outline-offset:3px;
}

.skip-link{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;}
.skip-link:focus{
  position:fixed;left:16px;top:16px;width:auto;height:auto;
  padding:12px 16px;background:var(--surface);border-radius:10px;z-index:200;
  box-shadow:0 8px 30px rgba(16,48,144,0.2);
}

.container{width:100%;max-width:1120px;margin:0 auto;padding:0 20px;}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

.topbar{
  background:rgba(16,48,144,0.92);
  backdrop-filter:saturate(140%) blur(12px);
  border-bottom:1px solid rgba(255,255,255,0.08);
  min-height:68px;display:flex;align-items:center;position:sticky;top:0;z-index:100;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#fff;}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-0.03em;color:#fff;}
.nav{display:flex;align-items:center;gap:8px 20px;flex-wrap:wrap;justify-content:flex-end;}
.nav a{color:rgba(255,255,255,0.85);text-decoration:none;font-size:14px;font-weight:600;transition:color .2s ease;}
.nav a:hover,.nav a[aria-current="page"]{color:#fff;}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border:1px solid rgba(255,255,255,0.2);
  border-radius:12px;background:rgba(255,255,255,0.06);cursor:pointer;
}
.nav-toggle:hover{background:rgba(255,255,255,0.12);}
.nav-toggle-bars,.nav-toggle-bars::before,.nav-toggle-bars::after{
  display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative;transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle-bars::before,.nav-toggle-bars::after{content:"";position:absolute;left:0;}
.nav-toggle-bars::before{top:-6px;}
.nav-toggle-bars::after{top:6px;}
.topbar.nav-open .nav-toggle-bars{background:transparent;}
.topbar.nav-open .nav-toggle-bars::before{top:0;transform:rotate(45deg);}
.topbar.nav-open .nav-toggle-bars::after{top:0;transform:rotate(-45deg);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 20px;border-radius:14px;font-size:15px;font-weight:700;
  text-decoration:none;border:none;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--brand-gradient);color:#fff;box-shadow:0 8px 24px rgba(0,112,192,0.28);}
.btn-secondary{background:rgba(255,255,255,0.12);color:#fff;border:1px solid rgba(255,255,255,0.22);}
.btn-outline{
  background:var(--surface);color:var(--royal-blue);
  border:1px solid rgba(0,72,176,0.28);height:44px;padding:0 16px;font-size:14px;
}
.btn-outline:hover{border-color:var(--royal-blue);}
.btn-ghost{background:transparent;color:var(--royal-blue);height:40px;padding:0 12px;font-size:14px;font-weight:600;}

.help-hero{
  background:linear-gradient(135deg,var(--dark-navy) 0%,var(--royal-blue) 55%,var(--deep-purple) 100%);
  color:#fff;padding:48px 0 56px;position:relative;overflow:hidden;
}
.help-hero::after{
  content:"";position:absolute;right:-10%;top:-40%;width:40%;height:140%;
  background:radial-gradient(circle at 40% 50%,rgba(56,200,240,0.22),transparent 65%);pointer-events:none;
}
.help-hero .container{position:relative;z-index:1;}
.help-kicker{font-size:12px;font-weight:800;letter-spacing:0.08em;text-transform:uppercase;color:rgba(255,255,255,0.72);margin-bottom:10px;}
.help-hero h1{font-size:clamp(28px,4vw,40px);letter-spacing:-0.03em;margin-bottom:10px;}
.help-hero .lead{color:rgba(255,255,255,0.9);font-size:17px;max-width:62ch;margin-bottom:22px;}

.search-box{display:flex;gap:10px;flex-wrap:wrap;align-items:stretch;max-width:720px;}
.search-box input[type="search"]{
  flex:1 1 280px;min-width:0;height:52px;border-radius:14px;
  border:1px solid rgba(255,255,255,0.22);background:rgba(255,255,255,0.1);
  padding:0 16px;font-size:16px;color:#fff;
}
.search-box input::placeholder{color:rgba(255,255,255,0.55);}
.search-box .btn{height:52px;}

.main-sheet{padding:28px 0 40px;}
.section{margin:28px 0;}
.section-head{margin-bottom:16px;}
.section-head h2{font-size:clamp(20px,2.4vw,26px);letter-spacing:-0.03em;margin-bottom:6px;}
.section-head p{color:var(--muted);max-width:70ch;}

.category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.category-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:20px 18px;text-decoration:none;color:inherit;transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease;
}
.category-card:hover{border-color:rgba(0,112,192,0.35);box-shadow:0 10px 28px rgba(16,48,144,0.08);transform:translateY(-2px);}
.category-card h3{font-size:17px;margin-bottom:6px;letter-spacing:-0.02em;}
.category-card p{color:var(--muted);font-size:14px;line-height:1.5;}
.category-meta{margin-top:12px;font-size:12px;font-weight:700;color:var(--royal-blue);letter-spacing:0.02em;}

.article-list{display:grid;gap:12px;}
.article-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:16px;
  padding:16px 18px;text-decoration:none;color:inherit;transition:border-color .15s ease,box-shadow .15s ease;
}
.article-card:hover{border-color:rgba(0,112,192,0.35);box-shadow:0 8px 22px rgba(16,48,144,0.07);}
.article-card h3{font-size:16px;margin-bottom:4px;}
.article-card p{color:var(--muted);font-size:14px;}
.badge{
  display:inline-block;font-size:11px;font-weight:800;letter-spacing:0.04em;text-transform:uppercase;
  color:var(--cyan-teal);background:rgba(0,160,160,0.1);border-radius:999px;padding:4px 8px;margin-bottom:8px;
}

.breadcrumbs{display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center;font-size:13px;color:var(--soft);margin-bottom:18px;}
.breadcrumbs a{color:var(--royal-blue);text-decoration:none;font-weight:600;}
.breadcrumbs a:hover{text-decoration:underline;}
.breadcrumbs span[aria-hidden="true"]{opacity:0.5;}

.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:28px 24px;
}
.panel h1{font-size:clamp(24px,3vw,34px);letter-spacing:-0.03em;margin-bottom:10px;}
.article-summary{color:var(--muted);font-size:16px;margin-bottom:22px;max-width:70ch;}

.prose{font-size:16px;line-height:1.7;color:var(--ink);max-width:72ch;}
.prose h2{font-size:22px;margin:28px 0 10px;letter-spacing:-0.02em;}
.prose h3{font-size:18px;margin:22px 0 8px;}
.prose p{margin:0 0 14px;}
.prose ul,.prose ol{margin:0 0 16px 1.25em;}
.prose li{margin:6px 0;}
.prose a{color:var(--royal-blue);font-weight:600;}
.prose strong{font-weight:700;}
.prose blockquote{
  margin:16px 0;padding:12px 16px;border-left:4px solid var(--cyan-teal);
  background:rgba(0,160,160,0.06);border-radius:0 12px 12px 0;color:var(--muted);
}
.prose .steps{list-style:none;margin-left:0;counter-reset:step;}
.prose .steps li{
  counter-increment:step;position:relative;padding-left:42px;margin:14px 0;
}
.prose .steps li::before{
  content:counter(step);position:absolute;left:0;top:0;
  width:28px;height:28px;border-radius:50%;
  background:var(--brand-gradient);color:#fff;font-size:13px;font-weight:800;
  display:grid;place-items:center;
}

.related{margin-top:28px;padding-top:22px;border-top:1px solid var(--line);}
.related h2{font-size:18px;margin-bottom:12px;}

.feedback{
  margin-top:28px;padding:18px;border:1px solid var(--line);border-radius:16px;background:#fafafa;
}
.feedback h2{font-size:16px;margin-bottom:10px;}
.feedback-actions{display:flex;gap:10px;flex-wrap:wrap;}
.feedback-note{margin-top:10px;font-size:14px;color:var(--muted);}

.still-help{
  margin:36px 0 12px;background:linear-gradient(135deg,var(--dark-navy) 0%,var(--royal-blue) 55%,var(--deep-purple) 100%);
  border-radius:20px;padding:32px 28px;color:#fff;
}
.still-help h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:8px;}
.still-help p{color:rgba(255,255,255,0.9);margin-bottom:18px;max-width:60ch;}
.still-help .actions{display:flex;gap:12px;flex-wrap:wrap;}

.footer{padding:8px 0 28px;color:var(--soft);font-size:14px;display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:space-between;}
.footer a{color:var(--royal-blue);text-decoration:none;font-weight:600;}
.footer a:hover{text-decoration:underline;}

.form-grid{display:grid;gap:14px;max-width:640px;}
.form-grid label{display:grid;gap:6px;font-size:14px;font-weight:600;color:var(--ink);}
.form-grid input,.form-grid select,.form-grid textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;
  font:inherit;background:#fff;color:var(--ink);
}
.form-grid textarea{min-height:140px;resize:vertical;}
.form-hint{font-size:13px;font-weight:500;color:var(--soft);}
.form-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:6px;}
.form-note{font-size:13px;color:var(--soft);margin-top:10px;}

.chat-shell{display:grid;grid-template-rows:1fr auto;min-height:420px;max-height:70vh;}
.chat-log{overflow:auto;padding:8px 4px 16px;display:grid;gap:12px;}
.chat-bubble{
  max-width:min(640px,92%);padding:12px 14px;border-radius:16px;font-size:15px;line-height:1.55;
}
.chat-bubble.assistant{background:#f4f7fb;border:1px solid var(--line);justify-self:start;}
.chat-bubble.user{background:rgba(0,112,192,0.1);border:1px solid rgba(0,112,192,0.18);justify-self:end;}
.chat-bubble a{color:var(--royal-blue);font-weight:600;}
.chat-refs{margin-top:10px;padding-top:8px;border-top:1px solid rgba(16,48,144,0.08);font-size:13px;}
.chat-refs ul{margin:6px 0 0 1.1em;}
.chat-compose{display:flex;gap:10px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:14px;}
.chat-compose input{flex:1 1 240px;height:48px;border-radius:12px;border:1px solid var(--line);padding:0 14px;font:inherit;}
.chat-tools{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;}

.search-page-box{
  display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px;
}
.search-page-box input{
  flex:1 1 260px;height:48px;border-radius:12px;border:1px solid var(--line);padding:0 14px;font:inherit;background:#fff;
}
.excerpt{color:var(--muted);font-size:14px;margin-top:4px;}
.excerpt mark{background:rgba(56,200,240,0.35);color:inherit;padding:0 2px;border-radius:3px;}

@media(max-width:900px){
  .category-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media(max-width:640px){
  .category-grid{grid-template-columns:1fr;}
  .nav-toggle{display:inline-flex;}
  .nav{
    display:none;width:100%;flex-direction:column;align-items:stretch;gap:0;
    padding:4px 0 8px;border-top:1px solid rgba(255,255,255,0.12);order:3;
  }
  .topbar.nav-open .nav{display:flex;}
  .nav a{padding:14px 4px;border-bottom:1px solid rgba(255,255,255,0.08);font-size:15px;}
  .nav a:last-child{border-bottom:none;}
  .help-hero{padding:36px 0 42px;}
  .panel{padding:22px 18px;}
  .still-help{padding:24px 20px;}
  .footer{flex-direction:column;}
}