/* CommunityHub Seasonal Experience — v1.0.495 */
.ch-seasonal-effects-layer{position:fixed;inset:0;z-index:90;overflow:hidden;pointer-events:none;contain:layout paint style}
.ch-seasonal-particle{position:absolute;top:-12vh;left:var(--ch-season-x,50%);font-size:var(--ch-season-size,20px);opacity:var(--ch-season-opacity,.75);filter:drop-shadow(0 5px 8px rgba(0,0,0,.22));will-change:transform,opacity;animation:ch-season-fall var(--ch-season-speed,13s) linear var(--ch-season-delay,0s) infinite}
.ch-seasonal-particle--bat{top:var(--ch-season-y,18%);animation:ch-season-bat var(--ch-season-speed,12s) ease-in-out var(--ch-season-delay,0s) infinite;opacity:.48}
.ch-holiday-halloween::before{content:"";position:fixed;inset:auto 0 0;height:32vh;z-index:88;pointer-events:none;background:radial-gradient(ellipse at 20% 100%,rgba(119,55,160,.10),transparent 60%),radial-gradient(ellipse at 82% 100%,rgba(232,98,20,.09),transparent 58%);opacity:.85}
@keyframes ch-season-fall{0%{transform:translate3d(0,-14vh,0) rotate(0deg)}35%{transform:translate3d(var(--ch-season-drift-a,24px),34vh,0) rotate(120deg)}70%{transform:translate3d(var(--ch-season-drift-b,-20px),72vh,0) rotate(250deg)}100%{transform:translate3d(var(--ch-season-drift-c,18px),116vh,0) rotate(390deg)}}
@keyframes ch-season-bat{0%{transform:translate3d(-12vw,0,0) scale(.9) rotate(-7deg)}50%{transform:translate3d(52vw,var(--ch-season-bob,18px),0) scale(1.05) rotate(5deg)}100%{transform:translate3d(116vw,0,0) scale(.92) rotate(-5deg)}}
.ch-season-arrival{position:fixed;left:50%;top:max(72px,calc(env(safe-area-inset-top) + 58px));z-index:2147482000;width:min(520px,calc(100vw - 28px));transform:translate(-50%,-18px);opacity:0;pointer-events:none;transition:opacity .28s ease,transform .34s cubic-bezier(.2,.78,.2,1)}
.ch-season-arrival.is-visible{opacity:1;transform:translate(-50%,0);pointer-events:auto}
.ch-season-arrival__card{display:flex;align-items:center;gap:13px;padding:14px 16px;border:1px solid rgba(255,255,255,.14);border-radius:18px;background:linear-gradient(135deg,rgba(15,25,43,.97),rgba(24,32,55,.97));color:#f8fbff;box-shadow:0 18px 70px rgba(0,0,0,.34),0 0 0 1px rgba(58,143,255,.12),0 0 30px rgba(58,143,255,.14)}
.ch-season-arrival__icon{display:grid;place-items:center;flex:0 0 44px;width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,rgba(255,141,42,.2),rgba(72,128,255,.18));font-size:25px}.ch-season-arrival__copy{display:grid;gap:2px;min-width:0}.ch-season-arrival__copy strong{font-size:.98rem}.ch-season-arrival__copy span{color:#aebdd2;font-size:.78rem;line-height:1.35}.ch-season-arrival__close{margin-left:auto;display:grid;place-items:center;width:32px;height:32px;border:1px solid rgba(255,255,255,.12);border-radius:999px;background:rgba(255,255,255,.05);color:#fff;cursor:pointer}
.ch-composer-festive-option{display:flex;align-items:center;gap:10px;padding:11px 13px;border:1px solid color-mix(in srgb,var(--ch-season-festive-accent,#e77720) 42%,var(--ch-border,#283a54));border-radius:14px;background:linear-gradient(135deg,color-mix(in srgb,var(--ch-season-festive-accent,#e77720) 9%,transparent),transparent 62%);cursor:pointer}.ch-composer-festive-option input{accent-color:var(--ch-season-festive-accent,#e77720)}.ch-composer-festive-icon{font-size:1.2rem}.ch-composer-festive-copy{display:grid;gap:2px}.ch-composer-festive-copy strong{font-size:.84rem}.ch-composer-festive-copy small{font-size:.7rem;color:var(--ch-muted,#96a7be)}
.ch-activity-card.ch-festive-post{position:relative;border-color:color-mix(in srgb,var(--ch-festive-accent,#e77720) 38%,var(--ch-border,#263a55));box-shadow:0 0 0 1px color-mix(in srgb,var(--ch-festive-accent,#e77720) 9%,transparent),0 14px 44px rgba(0,0,0,.13)}
.ch-activity-card.ch-festive-post::before{content:"";position:absolute;inset:0 0 auto;height:2px;border-radius:inherit;background:linear-gradient(90deg,transparent,var(--ch-festive-accent,#e77720),transparent);opacity:.85;pointer-events:none}.ch-festive-post-badge{display:inline-flex;align-items:center;gap:6px;width:max-content;max-width:100%;margin:3px 0 9px;padding:5px 9px;border:1px solid color-mix(in srgb,var(--ch-festive-accent,#e77720) 38%,transparent);border-radius:999px;background:color-mix(in srgb,var(--ch-festive-accent,#e77720) 10%,transparent);color:var(--ch-text,#fff);font-size:.67rem;font-weight:850;letter-spacing:.045em}.ch-festive-post-badge small{font-weight:700;color:var(--ch-muted,#9bacbf)}
.ch-event-hub__seasonal-identity{display:flex;align-items:center;gap:10px;width:max-content;max-width:100%;margin:0 0 8px;padding:7px 10px;border:1px solid color-mix(in srgb,var(--ch-season-accent,#e77720) 40%,rgba(127,127,127,.22));border-radius:999px;background:color-mix(in srgb,var(--ch-season-accent,#e77720) 10%,transparent);font-size:.74rem;font-weight:850}.ch-event-hub__seasonal-identity span:first-child{font-size:1.1rem}
body.ch-season-autumn{--ch-season-accent:#e77720}body.ch-season-winter{--ch-season-accent:#66c7ff}body.ch-season-spring{--ch-season-accent:#ec6bb7}body.ch-season-summer{--ch-season-accent:#f6b91a}body.ch-holiday-halloween{--ch-season-accent:#f47b20}
@media(max-width:700px){.ch-season-arrival{top:max(58px,calc(env(safe-area-inset-top) + 46px))}.ch-season-arrival__card{padding:12px 13px}.ch-composer-festive-option{padding:10px 11px}.ch-seasonal-particle{filter:none}}
@media(prefers-reduced-motion:reduce){.ch-seasonal-particle{display:none!important}.ch-season-arrival{transition:none!important}.ch-holiday-halloween::before{display:none!important}}
/* Focus-sensitive page exemptions — v1.0.496 */
body.ch-season-effects-exempt .ch-seasonal-effects-layer,
body.ch-season-effects-exempt .ch-season-arrival,
body.ch-season-effects-exempt.ch-holiday-halloween::before{display:none!important}