:root{--site-header-height:94px}
html:has(.site-header-shell){scroll-padding-top:calc(var(--site-header-height) + 20px)}
.site-header-shell{position:sticky;top:0;z-index:50;background:#faf8f4;transition:box-shadow .2s ease}
.site-header-shell.is-scrolled{box-shadow:0 1px 0 #e3dce6,0 8px 24px -20px #48375050}
.art-directed .site-header-shell .site-header{margin-block:0}
.site-whatsapp{position:fixed;right:max(24px,env(safe-area-inset-right));bottom:calc(24px + env(safe-area-inset-bottom));z-index:60;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:13px 20px;border:1px solid #ffffff45;border-radius:32px;background:#18784d;color:#fff;font:600 13px/1.4 'Segoe UI',Arial,sans-serif;text-decoration:none;box-shadow:0 6px 22px -9px #174b3c65;transition:background .18s,box-shadow .18s}
.site-whatsapp svg{width:28px;height:28px;flex-shrink:0}
.site-whatsapp:hover{background:#11603b;color:#fff;box-shadow:0 8px 24px -9px #174b3c80}
.site-whatsapp:focus-visible{outline:3px solid #18784d;outline-offset:4px}
body:has(dialog[open]) .site-whatsapp,body:has(dialog[open]) .site-quick-nav{visibility:hidden}
body.tv-mode .site-header-shell,body.tv-mode .site-whatsapp,body.tv-mode .site-quick-nav{display:none}
/* Floating shortcuts share one reserved bottom area with contact and toast UI. */
body:has(.site-quick-nav){padding-bottom:calc(108px + env(safe-area-inset-bottom))}
.site-quick-nav{position:fixed;z-index:60;left:50%;bottom:calc(20px + env(safe-area-inset-bottom));transform:translateX(-50%);display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px;width:min(420px,calc(100% - 32px));padding:7px;background:#fffdfbf5;border:1px solid #e0d5e6;border-radius:22px;box-shadow:0 8px 32px -14px #4b345640;backdrop-filter:blur(12px)}
.site-quick-nav a{display:flex;align-items:center;justify-content:center;gap:8px;min-width:0;min-height:48px;padding:10px 12px;border-radius:15px;color:#776182;font:500 13px/1.4 'Segoe UI',Arial,sans-serif;text-decoration:none;transition:background .18s,color .18s}
.site-quick-nav .icon{width:19px;height:19px;flex-shrink:0}
.site-quick-nav a:hover,.site-quick-nav a[aria-current=page]{background:#f0e8f5;color:#624b73}
.site-quick-nav .site-quick-join{background:#806891;color:#fff;font-weight:600}
.site-quick-nav .site-quick-join:hover,.site-quick-nav .site-quick-join[aria-current=page]{background:#6c557d;color:#fff}
.site-quick-nav a:focus-visible{outline:2px solid #806891;outline-offset:2px}
.art-directed:has(.site-quick-nav) #toast{bottom:calc(108px + env(safe-area-inset-bottom))}
@media(max-width:800px){body:has(.site-quick-nav) .site-whatsapp{bottom:calc(96px + env(safe-area-inset-bottom))}}
@media(max-width:600px){.site-quick-nav{left:0;right:0;bottom:0;transform:none;width:100%;gap:8px;padding:8px max(16px,env(safe-area-inset-right)) calc(10px + env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left));border:0;border-top:1px solid #e5dce8;border-radius:0;background:#fffdfa;backdrop-filter:none;box-shadow:0 -6px 20px -16px #4b345630}html:has(.site-quick-nav){scroll-padding-bottom:calc(96px + env(safe-area-inset-bottom))}.site-quick-nav a{flex-direction:column;gap:4px;min-height:52px;padding:5px 8px;font-size:11px;border-radius:14px}.site-quick-nav .icon{width:20px;height:20px}body:has(.site-quick-nav):has(input:focus,textarea:focus) .site-quick-nav,body:has(.site-quick-nav):has(input:focus,textarea:focus) .site-whatsapp{visibility:hidden}}
@media(min-width:1101px){.art-directed:has(.site-header-shell) .learning-sidebar,.art-directed:has(.site-header-shell) .checkout-grid .order-summary,.art-directed:has(.site-header-shell) .member-sidebar{top:calc(var(--site-header-height) + 20px)}}
@media(max-width:1000px){:root{--site-header-height:84px}}
@media(max-width:600px){:root{--site-header-height:76px}.site-whatsapp{right:18px;bottom:calc(18px + env(safe-area-inset-bottom));width:56px;height:56px;padding:12px}.site-whatsapp>span{display:none}.art-directed #toast{bottom:calc(86px + env(safe-area-inset-bottom))}}
@media(prefers-reduced-motion:reduce){.site-header-shell,.site-whatsapp,.site-quick-nav a{transition:none}}