.dc-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px 60px;overflow:hidden;position:relative}.dc-bg{z-index:0;transition:background .8s ease}.dc-bg,.dc-stars{position:fixed;inset:0}.dc-stars{z-index:1;pointer-events:none}.dc-star{position:absolute;border-radius:50%;background:#fff;animation:dc-twinkle var(--dur) ease-in-out infinite alternate}@keyframes dc-twinkle{0%{opacity:var(--min-op);transform:scale(1)}to{opacity:var(--max-op);transform:scale(1.5)}}.dc-content{position:relative;z-index:2;width:100%;max-width:380px;display:flex;flex-direction:column;align-items:center;gap:32px}.dc-date-area{text-align:center}.dc-date-tag{display:inline-block;font-size:.65rem;letter-spacing:.25em;color:hsla(0,0%,100%,.35);border:1px solid hsla(0,0%,100%,.1);padding:4px 14px;border-radius:20px;margin-bottom:10px;text-transform:uppercase}.dc-date-text{font-size:.85rem;color:hsla(0,0%,100%,.5);font-family:serif}.dc-card-scene{width:280px;height:380px;perspective:800px;cursor:pointer}.dc-card-flipper{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .7s cubic-bezier(.4,.2,.2,1)}.dc-card-scene.flipped .dc-card-flipper{transform:rotateY(180deg)}.dc-card-back,.dc-card-front{position:absolute;inset:0;border-radius:20px;backface-visibility:hidden;-webkit-backface-visibility:hidden}.dc-card-back{background:linear-gradient(135deg,#0d0920,#1a1040,#0d0920);border:1px solid hsla(0,0%,100%,.1);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;box-shadow:0 20px 60px rgba(0,0,0,.6),0 0 40px rgba(100,50,200,.15)}.dc-card-back-pattern{position:absolute;inset:0;border-radius:20px;overflow:hidden;opacity:.15;background-image:repeating-linear-gradient(45deg,hsla(0,0%,100%,.05),hsla(0,0%,100%,.05) 1px,transparent 0,transparent 14px),repeating-linear-gradient(-45deg,hsla(0,0%,100%,.05),hsla(0,0%,100%,.05) 1px,transparent 0,transparent 14px)}.dc-card-back-star{font-size:3rem;animation:dc-pulse 2s ease-in-out infinite alternate;position:relative;z-index:1}@keyframes dc-pulse{0%{filter:drop-shadow(0 0 6px rgba(200,150,255,.4));transform:scale(1)}to{filter:drop-shadow(0 0 16px rgba(200,150,255,.8));transform:scale(1.08)}}.dc-card-back-hint{font-size:.78rem;color:rgba(200,160,255,.55);letter-spacing:.1em;font-family:serif;position:relative;z-index:1}.dc-card-back-border{position:absolute;inset:10px;border-radius:14px;border:1px solid hsla(0,0%,100%,.06)}.dc-card-front{transform:rotateY(180deg);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 24px;gap:16px;box-shadow:0 20px 60px rgba(0,0,0,.6);border:1px solid hsla(0,0%,100%,.08);animation:dc-card-glow 3s ease-in-out infinite alternate}@keyframes dc-card-glow{0%{box-shadow:0 20px 60px rgba(0,0,0,.6)}to{box-shadow:0 20px 80px rgba(0,0,0,.7),0 0 40px var(--card-glow,rgba(150,100,255,.15))}}.dc-front-tag{font-size:.6rem;letter-spacing:.2em;color:hsla(0,0%,100%,.4);border:1px solid hsla(0,0%,100%,.1);padding:3px 12px;border-radius:20px}.dc-front-emoji{font-size:3.5rem;line-height:1;filter:drop-shadow(0 0 12px rgba(255,255,255,.2))}.dc-front-title{font-size:.8rem;letter-spacing:.15em;color:hsla(0,0%,100%,.5);text-align:center}.dc-front-message{font-size:1.15rem;font-weight:700;color:#fff;text-align:center;line-height:1.6;font-family:serif;text-shadow:0 0 20px hsla(0,0%,100%,.15)}.dc-front-divider{width:40px;height:1px;background:hsla(0,0%,100%,.15)}.dc-front-sub{font-size:.78rem;color:hsla(0,0%,100%,.55);text-align:center;line-height:1.65}.dc-front-category{font-size:.65rem;letter-spacing:.1em;padding:4px 12px;border-radius:20px;border:1px solid hsla(0,0%,100%,.12);color:hsla(0,0%,100%,.45);margin-top:4px}.dc-flip-hint{display:flex;flex-direction:column;align-items:center;gap:6px;opacity:1;transition:opacity .4s}.dc-flip-hint.hidden{opacity:0;pointer-events:none}.dc-flip-arrow{font-size:1.5rem;animation:dc-bounce 1.2s ease-in-out infinite}@keyframes dc-bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.dc-flip-text{font-size:.75rem;color:rgba(200,160,255,.45);letter-spacing:.1em;font-family:serif}.dc-actions{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%;opacity:0;transform:translateY(12px);transition:all .5s ease .4s}.dc-actions.show{opacity:1;transform:translateY(0)}.dc-share-btn{width:100%;padding:13px;background:hsla(0,0%,100%,.07);border:1px solid hsla(0,0%,100%,.12);border-radius:12px;color:hsla(0,0%,100%,.7);font-size:.88rem;cursor:pointer;transition:all .2s;letter-spacing:.05em}.dc-share-btn:hover{background:hsla(0,0%,100%,.12);color:#fff}.dc-again-btn{padding:8px 20px;background:transparent;border:none;color:rgba(200,160,255,.35);font-size:.75rem;cursor:pointer;letter-spacing:.05em}.dc-again-btn:hover{color:rgba(200,160,255,.6)}.dc-poster-overlay{position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}.dc-poster-wrap{max-width:360px;width:100%}.dc-poster-canvas{width:360px;border-radius:20px;display:block}.dc-poster-actions{display:flex;gap:10px;margin-top:12px}.dc-poster-save{flex:1;padding:12px;background:rgba(147,51,234,.7);color:#fff;font-weight:700;border-radius:10px;border:none;cursor:pointer}.dc-poster-close{padding:12px 20px;background:hsla(0,0%,100%,.06);color:rgba(200,160,255,.7);border-radius:10px;border:1px solid rgba(147,51,234,.2);cursor:pointer}