/* ── Zuuti Design Tokens ── */
:root{
  --primary:#D7263D;
  --primary-600:#B91F33;
  --primary-50:#FEF2F2;
  --text:#111827;
  --muted:#6B7280;
  --bg:#F8FAFC;
  --card:#FFFFFF;
  --panel:#F8F9FB;
  --border:#E5E7EB;
  --focus:2px solid #D7263D55;
  --radius:14px;
  --shadow:0 8px 24px rgba(17,24,39,.06);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;color:var(--text);background:var(--bg);
  font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}

/* ── Shared Header (injected by nav.js) ── */
#zuuti-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--border);
}
.zuuti-nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;max-width:1200px;margin:0 auto;padding:12px 20px;
}
.zuuti-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:17px;letter-spacing:.2px;color:var(--text);
}
.zuuti-brand:hover{text-decoration:none}
.zuuti-brand-dot{
  width:12px;height:12px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 3px rgba(215,38,61,.15);
}

/* Nav links */
.zuuti-nav-links{
  display:none;flex-wrap:wrap;gap:6px;
}
.zuuti-nav-links a{
  font-size:13px;font-weight:500;color:var(--muted);
  padding:6px 12px;border-radius:8px;transition:all .15s ease;
}
.zuuti-nav-links a:hover{
  color:var(--primary);background:var(--primary-50);text-decoration:none;
}
.zuuti-nav-links a.active{
  color:var(--primary);background:var(--primary-50);font-weight:700;
}
@media(min-width:820px){
  .zuuti-nav-links{display:flex}
  .zuuti-hamburger{display:none!important}
}

/* Hamburger button */
.zuuti-hamburger{
  display:flex;flex-direction:column;gap:5px;
  background:none;border:none;cursor:pointer;padding:6px;
  z-index:101;
}
.zuuti-hamburger span{
  display:block;width:22px;height:2px;background:var(--text);
  border-radius:2px;transition:all .2s ease;
}
.zuuti-hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.zuuti-hamburger.open span:nth-child(2){opacity:0}
.zuuti-hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* Mobile nav open */
.zuuti-nav-links.open{
  display:flex;flex-direction:column;
  position:absolute;top:100%;left:0;right:0;
  background:#fff;border-bottom:1px solid var(--border);
  padding:12px 20px 16px;gap:2px;
  box-shadow:0 8px 24px rgba(0,0,0,.08);
}
.zuuti-nav-links.open a{
  padding:10px 14px;font-size:15px;border-radius:10px;
}

/* ── Shared Footer ── */
#zuuti-footer{
  max-width:1200px;margin:40px auto 0;padding:24px 20px;
  text-align:center;color:var(--muted);font-size:13px;
  border-top:1px solid var(--border);
}
#zuuti-footer a{color:var(--muted)}
#zuuti-footer a:hover{color:var(--primary)}

/* ── Shared Utilities ── */
.container{width:min(1200px,92vw);margin:0 auto;padding:24px 0 56px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.card > .card-body{padding:18px}
@media(min-width:720px){.card > .card-body{padding:22px}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:700;cursor:pointer;
  user-select:none;transition:transform .04s ease,box-shadow .2s ease,background .2s ease;border-radius:12px}
.btn-primary{background:var(--primary);color:#fff;border:1px solid var(--primary-600);padding:12px 16px}
.btn-primary:hover{filter:saturate(105%)} .btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border:1px solid var(--border);color:var(--text);padding:12px 16px}
.help{color:var(--muted);font-size:13px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}