/* ============================================================
   Layout primitives
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
.container{max-width:var(--container, 1200px);margin:0 auto;padding:0 24px;width:100%}

/* ============================================================
   Buttons — pill geometry (ui-design.md)
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 22px;border-radius:var(--r-pill, 100px);
  border:1px solid transparent;transition:all .18s ease;white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--brand, #3F69DD);color:#fff}
.btn-primary:hover{background:var(--brand-strong, #2f51bf);transform:translateY(-1px)}
.btn-secondary{background:var(--strong, #eef0f5);color:var(--ink, #0a0b0d)}
.btn-secondary:hover{background:#e3e7f1}
.btn-ghost{background:transparent;color:var(--ink, #0a0b0d);border-color:var(--hairline, #e3e6ed)}
.btn-ghost:hover{border-color:var(--ink, #0a0b0d)}

/* ============================================================
   Navigation (classic Loop nav)
   ============================================================ */
#navbar{
  position:sticky;top:0;left:0;width:100%;z-index:60;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, box-shadow .2s ease;
}
#navbar.scrolled{border-color:var(--hairline, #e3e6ed);box-shadow:0 1px 0 rgba(10,11,13,.02)}
.nav-container{display:flex;align-items:center;justify-content:space-between;height:68px;gap:18px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.01em;color:var(--ink, #0a0b0d)}
.logo svg{width:34px;height:34px;flex:none}
/* shared brand mark (used by footer) */
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.01em}
.brand-mark{width:32px;height:32px;flex:none}
.brand .sub{color:var(--muted, #7c828a);font-weight:500;font-size:12px;margin-left:2px}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav-links > li{position:relative}
.nav-links > li > a{
  display:inline-flex;align-items:center;gap:5px;font-size:14px;font-weight:500;color:var(--ink, #0a0b0d);
  padding:9px 14px;border-radius:var(--r-sm, 8px);cursor:pointer;transition:background .15s ease,color .15s ease;
}
.nav-links > li > a:hover{background:var(--soft, #f6f7fb);color:var(--brand, #3F69DD)}
.chevron{width:15px;height:15px;transition:transform .2s ease}
.nav-dropdown.open > a .chevron{transform:rotate(180deg)}
.dropdown-menu{
  position:absolute;top:calc(100% + 8px);left:0;min-width:306px;background:#fff;border:1px solid var(--hairline, #e3e6ed);
  border-radius:var(--r-lg, 16px);box-shadow:var(--shadow-float, 0 18px 40px rgba(10,11,13,.12));padding:8px;z-index:70;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s ease, transform .18s ease, visibility .18s;
}
.nav-dropdown.open .dropdown-menu{opacity:1;visibility:visible;transform:none}
.dropdown-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--r-md, 12px);transition:background .15s ease}
.dropdown-item:hover{background:var(--soft, #f6f7fb)}
.di-icon{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;flex:none}
.di-icon svg{width:18px;height:18px}
.di-text{display:flex;flex-direction:column;gap:2px;min-width:0}
.di-title{font-size:14px;font-weight:600;color:var(--ink, #0a0b0d)}
.di-desc{font-size:12px;color:var(--muted, #7c828a)}
.dropdown-divider{height:1px;background:var(--hairline-soft, #eef0f5);margin:4px 8px}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-mobile-cta{display:none}
.mobile-menu-btn{display:none;align-items:center;justify-content:center;background:transparent;border:0;padding:8px;color:var(--ink, #0a0b0d);width:40px;height:40px;cursor:pointer;border-radius:8px;}
.mobile-menu-btn:hover{background:var(--soft, #f6f7fb);}
.mobile-menu-btn svg{width:24px;height:24px;pointer-events:none;}
@media (min-width:861px){
  .nav-dropdown:hover .dropdown-menu{opacity:1;visibility:visible;transform:none}
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{background:var(--canvas, #fff);border-top:1px solid var(--hairline, #e3e6ed);padding:clamp(56px,6vw,80px) 0 32px; width:100%;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--body, #5b616e);line-height:1.6;max-width:300px}
.foot-social{display:flex;gap:10px;margin-top:18px}
.foot-social a{width:38px;height:38px;border-radius:var(--r-full, 9999px);background:var(--soft, #f6f7fb);display:grid;place-items:center;color:var(--muted, #7c828a);transition:background .2s ease,color .2s ease}
.foot-social a:hover{background:var(--brand-soft, #eef2fd);color:var(--brand, #3F69DD)}
.foot-social svg{width:18px;height:18px}
.foot-title{font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted, #7c828a);margin-bottom:16px}
.foot-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14px;color:var(--body, #5b616e);transition:color .15s ease}
.foot-links a:hover{color:var(--brand, #3F69DD)}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--hairline, #e3e6ed);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted, #7c828a)}
.footer-bottom .links{display:flex;gap:20px}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:1024px){
  .nav-actions{display:none}
  .mobile-menu-btn{display:flex;position:relative;z-index:61}
  /* navbar's backdrop-filter is the containing block, so anchor the sheet
     to the navbar (absolute) instead of the viewport (fixed) */
  .nav-links{
    display:flex;flex-direction:column;align-items:stretch;
    position:absolute;top:0;right:0;height:100vh;height:100dvh;width:min(320px,85vw);
    background:#fff;border-left:1px solid var(--hairline, #e3e6ed);
    padding:82px 24px 24px;gap:2px;box-shadow:-8px 0 24px rgba(10,11,13,.08);
    overflow-y:auto;z-index:55;
    transform:translateX(100%);visibility:hidden;
    transition:transform .25s ease, visibility .25s;
  }
  #navbar.mobile-open .nav-links{transform:none;visibility:visible}
  .nav-links > li > a{padding:13px 10px;width:100%}
  .nav-dropdown .dropdown-menu{
    position:static;opacity:1;visibility:visible;transform:none;display:none;
    box-shadow:none;border:0;padding:2px 0 6px 20px;min-width:0;
  }
  .nav-dropdown.open .dropdown-menu{display:block}
  .nav-mobile-cta{display:flex;gap:10px;padding-top:14px;margin-top:8px;border-top:1px solid var(--hairline, #e3e6ed)}
  .nav-mobile-cta .btn{flex:1}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
}