:root{--bg:#fff5f7;--surface:#fff;--text:#4a3b5c;--text-secondary:#8e82a0;--primary:#ff9aaf;--primary-dark:#e8849a;--accent:#ffc3d0;--lavender:#e8d5f5;--peach:#ffe5d9;--shadow:0 4px 20px #ff9aaf26;--shadow-hover:0 8px 30px #ff9aaf40;--radius:20px;--radius-sm:12px;--nav-height:70px}.dark{--bg:#1a1225;--surface:#2a1f38;--text:#f5e6ff;--text-secondary:#b8a9c9;--primary:#ff9aaf;--primary-dark:#ff7f99;--accent:#5c3d6e;--lavender:#3d2b4f;--peach:#4a3040;--shadow:0 4px 20px #0000004d;--shadow-hover:0 8px 30px #ff9aaf33}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background-color:var(--bg);color:var(--text);font-family:Quicksand,sans-serif;transition:background-color .5s,color .5s;overflow-x:hidden}.app-container{max-width:480px;min-height:100vh;padding-bottom:var(--nav-height);margin:0 auto;position:relative}.page{padding:30px 20px 20px;animation:.4s ease-out fadeIn;display:none}.page.active{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}h1,h2,h3{color:var(--text);font-weight:700;line-height:1.3}h1{font-size:1.8rem}h2{margin-bottom:15px;font-size:1.4rem}.script-font{color:var(--primary-dark);font-family:Caveat,cursive}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:20px;padding:20px;transition:transform .3s,box-shadow .3s,background-color .5s}.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}.btn{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;cursor:pointer;border:none;border-radius:50px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-family:Quicksand,sans-serif;font-size:1rem;font-weight:700;transition:transform .2s,box-shadow .2s;display:inline-flex;box-shadow:0 4px 15px #ff9aaf4d}.btn:active{transform:scale(.95)}.btn-outline{border:2px solid var(--primary);color:var(--primary);box-shadow:none;background:0 0}.btn-danger{background:#ff6b6b;box-shadow:0 4px 15px #ff6b6b4d}input,textarea,select{background:var(--bg);border-radius:var(--radius-sm);width:100%;color:var(--text);border:2px solid #0000;margin-bottom:15px;padding:12px 16px;font-family:Quicksand,sans-serif;font-size:1rem;transition:border-color .3s,background-color .5s}input:focus,textarea:focus{border-color:var(--primary);background:var(--surface);outline:none}textarea{resize:vertical;min-height:100px}.bottom-nav{background:var(--surface);z-index:100;border-top-left-radius:20px;border-top-right-radius:20px;justify-content:space-around;width:100%;max-width:480px;padding:10px 0 15px;transition:background-color .5s;display:flex;position:fixed;bottom:0;left:50%;transform:translate(-50%);box-shadow:0 -5px 20px #0000000d}.nav-item{color:var(--text-secondary);cursor:pointer;flex-direction:column;align-items:center;font-size:.7rem;font-weight:600;text-decoration:none;transition:color .3s;display:flex}.nav-item i{margin-bottom:4px;font-size:1.2rem;transition:transform .3s}.nav-item.active{color:var(--primary-dark)}.nav-item.active i{transform:scale(1.1)translateY(-2px)}.countdown-hero{text-align:center;background:linear-gradient(135deg, var(--peach), var(--lavender));border-radius:var(--radius);margin-bottom:25px;padding:40px 20px;position:relative;overflow:hidden}.countdown-hero:before{content:"💕";opacity:.1;font-size:120px;position:absolute;top:-20px;right:-20px}.countdown-number{background:linear-gradient(135deg, #ff6b6b, var(--primary));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:4rem;font-weight:700;line-height:1}.countdown-label{color:var(--text);margin-top:5px;font-size:1.1rem}.countdown-sub{color:var(--primary-dark);margin-top:15px;font-family:Caveat,cursive;font-size:1.5rem}.polaroid{background:var(--surface);box-shadow:var(--shadow);border-radius:4px;width:140px;padding:10px 10px 30px;transition:transform .3s;transform:rotate(-2deg)}.polaroid:nth-child(2){margin-top:20px;transform:rotate(3deg)}.polaroid img{object-fit:cover;border-radius:2px;width:100%;height:140px}.polaroid-caption{text-align:center;color:var(--text);margin-top:10px;font-family:Caveat,cursive;font-size:1.1rem}.memories-row{justify-content:center;gap:15px;margin-bottom:25px;display:flex}.mini-player{background:var(--surface);box-shadow:var(--shadow);cursor:pointer;border-radius:50px;align-items:center;margin-top:20px;padding:8px 15px;display:flex}.mini-player-img{object-fit:cover;border-radius:50%;width:40px;height:40px;margin-right:10px}.mini-player-info{flex:1}.mini-player-title{font-size:.85rem;font-weight:700}.mini-player-artist{color:var(--text-secondary);font-size:.7rem}.mini-player-btn{color:var(--primary-dark);cursor:pointer;background:0 0;border:none;font-size:1.5rem}.grid-clean{grid-template-columns:repeat(2,1fr);gap:10px;display:grid}.grid-clean .tall{grid-row:span 2}.grid-clean img{object-fit:cover;border-radius:var(--radius-sm);cursor:pointer;width:100%;height:100%;transition:transform .3s}.grid-clean img:active{transform:scale(.95)}.grid-scrapbook{flex-wrap:wrap;justify-content:center;gap:20px;display:flex}.scrap-item{background:var(--surface);border-radius:var(--radius-sm);box-shadow:var(--shadow);cursor:pointer;padding:8px 8px 35px;transition:transform .3s,box-shadow .3s;position:relative}.scrap-item:active{transform:scale(.95)!important}.scrap-item img{object-fit:cover;border-radius:var(--radius-sm);width:100%;height:100%}.scrap-caption{text-align:center;width:100%;color:var(--text);font-family:Caveat,cursive;font-size:1.1rem;position:absolute;bottom:10px;left:0}.lightbox{z-index:1000;background:#000000e6;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;padding:20px;animation:.3s fadeIn;display:none;position:fixed;top:0;left:0}.lightbox.active{display:flex}.lightbox img{border-radius:var(--radius-sm);object-fit:contain;max-width:100%;max-height:70vh}.lightbox-close{color:#fff;cursor:pointer;font-size:2rem;position:absolute;top:20px;right:20px}.lightbox-caption{color:#fff;margin-top:15px;font-family:Caveat,cursive;font-size:1.5rem}.diary-list{flex-direction:column;gap:15px;display:flex}.diary-item{background:var(--surface);border-radius:var(--radius-sm);box-shadow:var(--shadow);border-left:5px solid var(--primary);padding:15px;position:relative}.diary-date{color:var(--text-secondary);margin-bottom:5px;font-size:.8rem}.diary-content{margin-bottom:10px;padding-right:30px;font-size:1rem;line-height:1.5}.diary-mood{font-size:1.5rem;position:absolute;top:15px;right:15px}.diary-actions{gap:10px;display:flex}.diary-actions button{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;font-size:1rem;transition:color .2s}.diary-actions button:hover{color:var(--primary-dark)}.envelope-container{perspective:1000px;justify-content:center;padding-top:40px;display:flex}.envelope{background:var(--lavender);width:300px;height:200px;transform-style:preserve-3d;cursor:pointer;box-shadow:var(--shadow);border-radius:10px;transition:transform .6s;position:relative}.envelope-flap{background:linear-gradient(135deg, var(--primary), var(--accent));transform-origin:top;z-index:2;color:#fff;border-radius:10px 10px 0 0;justify-content:center;align-items:center;width:100%;height:50%;font-size:2rem;transition:transform .6s;display:flex;position:absolute;top:0;left:0}.envelope.open .envelope-flap{z-index:0;transform:rotateX(180deg)}.letter-content-box{color:#333;background:#fff;border-radius:5px;padding:15px;font-family:Caveat,cursive;font-size:1.3rem;transition:transform .6s;position:absolute;inset:20px;overflow:hidden;box-shadow:0 2px 10px #0000001a}.envelope.open .letter-content-box{transform:translateY(-100px)}.music-player{text-align:center;padding:30px 0}.music-artwork{object-fit:cover;width:250px;height:250px;box-shadow:var(--shadow-hover);border:8px solid var(--surface);border-radius:50%;margin:0 auto 30px;animation:20s linear infinite paused spin}.music-artwork.playing{animation-play-state:running}@keyframes spin{to{transform:rotate(360deg)}}.progress-container{background:var(--lavender);cursor:pointer;border-radius:3px;width:100%;height:6px;margin:20px 0;position:relative}.progress-bar{background:var(--primary);border-radius:3px;width:0%;height:100%;transition:width .1s linear}.time-display{color:var(--text-secondary);justify-content:space-between;margin-top:5px;font-size:.8rem;display:flex}.volume-slider{width:100%;accent-color:var(--primary-dark);margin-top:20px}.controls{justify-content:center;align-items:center;gap:30px;margin-top:20px;display:flex}.ctrl-btn{color:var(--text);cursor:pointer;background:0 0;border:none;font-size:1.5rem;transition:color .2s}.ctrl-btn.play-btn{color:var(--primary-dark);font-size:2.5rem}.setting-group{margin-bottom:30px}.setting-label{margin-bottom:10px;font-weight:700;display:block}.toggle-container{background:var(--surface);border-radius:var(--radius-sm);box-shadow:var(--shadow);justify-content:space-between;align-items:center;padding:15px 20px;display:flex}.toggle{background:var(--lavender);cursor:pointer;border-radius:14px;width:50px;height:28px;transition:background .3s;position:relative}.toggle.active{background:var(--primary)}.toggle:after{content:"";background:#fff;border-radius:50%;width:22px;height:22px;transition:transform .3s;position:absolute;top:3px;left:3px}.toggle.active:after{transform:translate(22px)}@media (width>=481px){body{background:#e8e0ee}.app-container{background:var(--bg);box-shadow:0 0 50px #0000001a}}