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ease}.quick-actions-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:flex-end;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.quick-actions-menu{background:#fff;border-radius:16px 16px 0 0;padding:16px;width:100%;max-width:400px;animation:slideUp .3s ease}.quick-action-btn{display:block;width:100%;padding:16px;margin-bottom:8px;background:var(--bg);border:none;border-radius:12px;font-size:16px;cursor:pointer;transition:background .2s}.quick-action-btn:last-child{margin-bottom:0;background:#f5f5f5}.quick-action-btn:active{background:#e0e0e0}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.share-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:flex-end;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.share-menu{background:#fff;border-radius:16px 16px 0 0;padding:20px;width:100%;max-width:400px;animation:slideUp .3s ease}.share-menu h3{text-align:center;margin-bottom:16px;font-size:16px;color:var(--text)}.share-options{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:16px}.share-btn{display:flex;flex-direction:column;align-items:center;padding:16px;background:var(--bg);border:none;border-radius:12px;cursor:pointer;transition:all .2s}.share-btn:active{transform:scale(.95);background:#e0e0e0}.share-icon{font-size:32px;margin-bottom:8px}.share-cancel{width:100%;padding:16px;background:transparent;border:1px solid var(--border);border-radius:12px;font-size:16px;cursor:pointer}.checkin-section{display:flex;gap:12px;flex-wrap:wrap}.checkin-calendar{background:#fff;border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:var(--shadow)}.calendar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font-weight:600}.streak{color:var(--primary);font-size:14px}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.calendar-day-header{text-align:center;font-size:12px;color:var(--text-light);padding:8px 0}.calendar-day{position:relative;aspect-ratio:1;display:flex;align-items:center;justify-content:center;font-size:14px;border-radius:8px;background:var(--bg)}.calendar-day.checked{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff}.calendar-day.today{border:2px solid var(--primary)}.calendar-day .check-mark{position:absolute;bottom:2px;right:2px;font-size:10px}.recommend-section{padding:30px 0;background:linear-gradient(135deg,#fff5f5,#fff9f0)}.section-title{font-size:20px;margin-bottom:20px;display:flex;align-items:center;gap:8px}.topics-page{padding:20px 0}.page-header{margin-bottom:30px}.page-header h1{font-size:28px;margin-bottom:8px}.page-header p{color:var(--text-light)}.topics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.topic-card{display:flex;align-items:center;padding:16px;background:#fff;border-radius:12px;text-decoration:none;color:var(--text);box-shadow:var(--shadow);transition:all .2s}.topic-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #0000001a}.topic-icon{font-size:36px;margin-right:16px}.topic-info h3{font-size:16px;margin-bottom:4px}.topic-info p{font-size:14px;color:var(--text-light);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.topic-meta{font-size:12px;color:var(--text-light);display:flex;gap:12px}.topic-detail-page{padding:20px 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768px){.quick-actions{grid-template-columns:repeat(2,1fr)}.bottom-nav{display:flex;justify-content:space-around}.main-content{padding-bottom:70px}}.desktop-only{display:flex}.mobile-only{display:none}.navbar{background:#fff;box-shadow:0 1px 3px #00000014;position:sticky;top:0;z-index:100;height:60px}.navbar-content{display:flex;align-items:center;height:60px;gap:20px}.navbar-brand{display:flex;align-items:center;gap:8px;text-decoration:none;flex-shrink:0}.navbar-brand .brand-icon{font-size:24px}.navbar-brand .brand-text{font-size:18px;font-weight:700;color:var(--text)}.navbar-nav{display:flex;align-items:center;gap:8px}.nav-link{padding:8px 12px;color:var(--text);text-decoration:none;font-size:15px;border-radius:6px;transition:all .2s;cursor:pointer}.nav-link:hover{background:var(--bg);color:var(--primary)}.nav-dropdown{position:relative}.dropdown-menu{position:absolute;top:100%;left:0;background:#fff;border-radius:8px;box-shadow:0 4px 20px #00000026;min-width:160px;padding:8px 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.2s}.action-btn:hover{background:var(--primary);transform:scale(1.05)}.user-avatar{width:36px;height:36px;border-radius:50%;overflow:hidden;cursor:pointer}.user-avatar img{width:100%;height:100%;object-fit:cover}.user-dropdown{position:relative}.user-menu{right:0;left:auto}.user-menu a,.user-menu button{display:block;width:100%;padding:10px 16px;text-align:left;background:none;border:none;font-size:14px;color:var(--text);cursor:pointer;text-decoration:none}.user-menu button:hover,.user-menu a:hover{background:var(--bg)}.btn-ghost{padding:8px 16px;background:transparent;border:none;color:var(--text);font-size:14px;cursor:pointer;border-radius:6px;text-decoration:none;transition:background .2s}.btn-ghost:hover{background:var(--bg)}.hamburger{display:none;flex-direction:column;justify-content:space-around;width:24px;height:20px;background:transparent;border:none;cursor:pointer;padding:0;z-index:1001}.hamburger span{display:block;width:100%;height:2px;background:var(--text);border-radius:2px;transition:all .3s}.mobile-menu{position:fixed;top:0;left:0;right:0;bottom:0;z-index:999}.mobile-menu-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:1;animation:fadeIn .3s ease}.mobile-menu-content{position:absolute;top:0;right:0;width:280px;max-width:85%;height:100%;background:#fff;padding:70px 20px 20px;overflow-y:auto;z-index:2;animation:slideIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideIn{0%{transform:translate(100%)}to{transform:translate(0)}}.mobile-quick-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}.mobile-quick-actions a{display:flex;flex-direction:column;align-items:center;padding:16px 8px;background:var(--bg);border-radius:12px;text-decoration:none;color:var(--text);transition:all .2s}.mobile-quick-actions a:active{transform:scale(.95)}.mobile-quick-actions .icon{font-size:24px;margin-bottom:6px}.mobile-quick-actions .text{font-size:12px;font-weight:500}.mobile-categories h4{margin-bottom:12px;color:var(--text-light);font-size:13px;font-weight:500}.mobile-category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:24px}.mobile-category-item{display:flex;flex-direction:column;align-items:center;padding:14px 8px;background:var(--bg);border-radius:10px;text-decoration:none;color:var(--text);transition:all .2s}.mobile-category-item:active{background:var(--primary);color:#fff}.mobile-category-item .icon{font-size:22px;margin-bottom:6px}.mobile-category-item .name{font-size:12px}.mobile-user-actions{border-top:1px solid var(--border);padding-top:16px}.mobile-user-actions button{display:block;width:100%;padding:14px;text-align:left;background:none;border:none;font-size:15px;color:var(--text);cursor:pointer;border-radius:8px}.mobile-user-actions 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.icon{font-size:22px;margin-bottom:2px}.bottom-nav-item.active{color:var(--primary)}.bottom-nav-item:active{transform:scale(.95)}.bottom-nav-add{display:flex;align-items:center;justify-content:center;width:56px;height:56px;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);border-radius:50%;text-decoration:none;margin-top:-20px;box-shadow:0 4px 12px #ff6b6b66;transition:all .2s}.bottom-nav-add:active{transform:scale(.95)}.bottom-nav-add .add-icon{color:#fff;font-size:28px;font-weight:300}@media (max-width: 1024px){.desktop-only{display:none!important}.mobile-only{display:flex!important}.bottom-nav{display:flex;justify-content:space-around}.main-content{padding-bottom:70px}.footer{padding-bottom:80px}}@media (max-width: 480px){.navbar-brand 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768px){.profile-header{flex-direction:column;text-align:center}.profile-stats{grid-template-columns:repeat(2,1fr)}.profile-avatar{width:80px;height:80px}}.nutrition-section{background:#fff;border-radius:12px;padding:20px;margin-bottom:20px}.nutrition-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.nutrition-item{display:flex;justify-content:space-between;padding:12px;background:var(--bg);border-radius:8px}.nutrition-label{color:var(--text-light)}.nutrition-value{font-weight:600}.health-score-section{background:linear-gradient(135deg,#e8f5e9,#c8e6c9);border-radius:12px;padding:20px;margin-bottom:20px}.health-score-card{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.score-circle{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,#4caf50,#2e7d32);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff}.score-value{font-size:28px;font-weight:700}.score-label{font-size:12px}.score-desc{flex:1;min-width:200px}.health-tags{display:flex;flex-wrap:wrap;gap:8px}.health-tag{padding:4px 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0}.loading-more{display:flex;align-items:center;justify-content:center;gap:10px;padding:30px;color:var(--text-light)}.loading-spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}.no-more{text-align:center;padding:30px;color:var(--text-light);font-size:14px}@media (max-width: 1600px){.grid-4{grid-template-columns:repeat(4,1fr)}}@media (max-width: 1399px){.grid-4{grid-template-columns:repeat(4,1fr)}}@media (max-width: 1199px){.grid-4,.grid-3{grid-template-columns:repeat(3,1fr)}}@media (max-width: 767px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}@media (max-width: 480px){.grid-2,.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}.navbar{background:#fff;box-shadow:0 2px 10px #0000001a;position:sticky;top:0;z-index:100}.navbar-content{display:flex;align-items:center;gap:20px;padding:12px 0}.navbar-brand{display:flex;align-items:center;gap:8px;font-size:1.25rem;font-weight:700;color:var(--primary)}.brand-icon{font-size:1.5rem}.navbar-categories{display:flex;gap:16px;overflow-x:auto;flex:1;padding:0 10px}.category-link{white-space:nowrap;font-size:14px;color:var(--text-light);padding:4px 8px;border-radius:6px;transition:all .2s}.category-link:hover{background:var(--bg);color:var(--primary)}.navbar-search{display:flex;gap:8px}.navbar-search input{padding:8px 12px;border:2px solid var(--border);border-radius:8px;width:200px}.navbar-search button{background:var(--primary);color:#fff;padding:8px 12px;border-radius:8px}.navbar-actions{display:flex;gap:10px;align-items:center}.user-menu{display:flex;align-items:center;gap:10px}.user-info{display:flex;align-items:center;gap:8px}.hero{background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);color:#fff;padding:60px 20px;text-align:center}.hero-compact{padding:40px 20px}.hero-compact h1{font-size:1.8rem;margin-bottom:8px}.hero-compact p{margin-bottom:0;font-size:1rem}.hero h1{font-size:2.5rem;margin-bottom:16px}.hero p{font-size:1.1rem;opacity:.9;margin-bottom:24px}.hero-actions{display:flex;gap:16px;justify-content:center}.categories-section{padding:40px 0}.categories-section h2{margin-bottom:20px}.categories-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.category-card{background:#fff;border-radius:var(--radius);padding:20px;text-align:center;box-shadow:var(--shadow);transition:all .2s}.category-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px #0000001f}.category-icon{font-size:2rem;display:block;margin-bottom:8px}.category-name{font-weight:500;display:block}.category-count{font-size:12px;color:var(--text-light)}.snack-card{display:block}.snack-image{width:100%;aspect-ratio:1;overflow:hidden;background:var(--bg)}.snack-image img{width:100%;height:100%;object-fit:cover}.snack-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:3rem;background:linear-gradient(135deg,#ffb347,#ff6b6b)}.placeholder-icon{font-size:3rem;filter:drop-shadow(0 2px 4px rgba(0,0,0,.2))}.snack-info{padding:12px}.snack-name{font-size:1rem;margin-bottom:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.snack-brand{font-size:13px;color:var(--text-light);margin-bottom:8px}.snack-meta{display:flex;gap:8px;margin-bottom:8px}.rating{color:#ffb800;font-size:14px}.snack-stats{display:flex;gap:12px;font-size:12px;color:var(--text-light)}.snacks-section{padding:40px 0}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.view-all{color:var(--primary);font-weight:500}.snack-detail-page{padding:20px 0}.snack-header{display:grid;grid-template-columns:400px 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strong{font-size:1rem}.actions{display:flex;gap:12px}.comments-section{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.comments-section h3{margin-bottom:20px}.comment-form{margin-bottom:24px}.comment-form textarea{width:100%;padding:12px;border:2px solid var(--border);border-radius:8px;margin-bottom:12px;resize:vertical}.rating-input{margin-bottom:12px}.rating-input button{background:none;font-size:1.5rem;opacity:.3}.rating-input button.active{opacity:1}.comment-item{display:flex;gap:12px;padding:16px 0;border-top:1px solid var(--border)}.comment-content{flex:1}.comment-header{display:flex;gap:12px;align-items:center;margin-bottom:8px}.comment-time{font-size:12px;color:var(--text-light)}.auth-page{min-height:60vh;display:flex;align-items:center;justify-content:center;padding:40px 20px}.auth-card{background:#fff;padding:40px;border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-width:400px}.auth-card h1{text-align:center;margin-bottom:24px}.btn-block{width:100%;margin-top:16px}.auth-switch{text-align:center;margin-top:20px;color:var(--text-light)}.auth-switch a{color:var(--primary)}.create-snack-page{padding:40px 0}.create-snack-page h1{margin-bottom:8px}.create-snack-page .subtitle{color:var(--text-light);margin-bottom:24px}.create-form{background:#fff;padding:24px;border-radius:var(--radius);box-shadow:var(--shadow)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.profile-page{padding:40px 0}.profile-header{display:flex;gap:24px;align-items:center;margin-bottom:40px}.avatar-large{width:120px;height:120px;border-radius:50%}.profile-info h1{margin-bottom:8px}.profile-info .bio{color:var(--text-light);margin-bottom:16px}.profile-stats{display:flex;gap:24px;margin-bottom:12px}.stat{text-align:center}.stat strong{display:block;font-size:1.5rem;color:var(--primary)}.stat span,.joined{font-size:13px;color:var(--text-light)}.leaderboard-page{padding:40px 0}.leaderboard-page h1{margin-bottom:8px}.leaderboard-page .subtitle{color:var(--text-light);margin-bottom:24px}.leaderboard-list{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.leaderboard-item{display:flex;align-items:center;gap:16px;padding:16px 20px;border-bottom:1px solid var(--border);transition:background .2s}.leaderboard-item:hover{background:var(--bg)}.leaderboard-item .rank{width:40px;text-align:center}.medal{font-size:1.5rem}.rank-num{font-size:1.25rem;font-weight:700;color:var(--text-light)}.leaderboard-item .user-info{flex:1}.score{text-align:right}.score-num{display:block;font-size:1.25rem;font-weight:700;color:var(--primary)}.score-label{font-size:12px;color:var(--text-light)}.footer{background:#2d3436;color:#fff;padding:24px 0 16px;margin-top:40px}.footer-simple{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;margin-bottom:16px}.footer-brand{display:flex;flex-direction:column;gap:4px}.footer-brand span:first-child{font-size:1.1rem;font-weight:600}.footer-slogan{color:#fff9;font-size:13px}.footer-links{display:flex;gap:20px}.footer-links a{color:#ffffffb3;font-size:14px;transition:color .2s}.footer-links a:hover{color:#fff}.footer-bottom{text-align:center;padding-top:16px;border-top:1px solid rgba(255,255,255,.1);color:#fff6;font-size:12px}@media (max-width: 1024px){.categories-grid{grid-template-columns:repeat(4,1fr)}.snack-header{grid-template-columns:300px 1fr}.snack-attrs{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.footer-simple{flex-direction:column;text-align:center}.footer-links{justify-content:center}.hero{padding:30px 20px}.hero h1{font-size:1.75rem}.hero p{font-size:1rem}.hero-actions{flex-direction:column;align-items:center}.categories-grid{grid-template-columns:repeat(2,1fr)}.snack-header{grid-template-columns:1fr;gap:20px}.snack-image-large{max-width:300px;margin:0 auto}.snack-info-large h1{font-size:1.5rem;text-align:center}.snack-info-large .meta{justify-content:center;flex-wrap:wrap}.snack-info-large .description{text-align:center}.snack-attrs{grid-template-columns:repeat(2,1fr)}.actions{justify-content:center}.form-row{grid-template-columns:1fr}.profile-header{flex-direction:column;text-align:center}.profile-stats{justify-content:center}.footer-content{grid-template-columns:repeat(2,1fr);gap:30px}}@media (max-width: 480px){.navbar-brand .brand-text{display:none}.navbar-actions .btn{padding:8px 12px;font-size:14px}.user-menu span{display:none}.hero h1{font-size:1.5rem}.categories-grid{grid-template-columns:repeat(2,1fr);gap:12px}.category-card{padding:12px}.category-icon{font-size:1.5rem}.category-name{font-size:14px}.category-count{display:none}.snack-attrs{grid-template-columns:1fr 1fr}.auth-card{padding:24px}.footer-content{grid-template-columns:1fr;gap:20px}.footer-section{text-align:center}}.tag{display:inline-flex;align-items:center;padding:4px 12px;background:var(--bg);border-radius:20px;font-size:14px;color:var(--text-light)}.avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;background:var(--border)}.loading{display:flex;justify-content:center;align-items:center;padding:40px}.loading:after{content:"";width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.search-box{display:flex;gap:12px;margin-bottom:20px}.search-box input{flex:1;padding:14px 18px;border:2px solid var(--border);border-radius:12px;font-size:16px;transition:border-color .2s}.search-box input:focus{outline:none;border-color:var(--primary)}.search-filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}.filter-tag{padding:8px 16px;background:#fff;border-radius:20px;font-size:14px;color:var(--text-light);text-decoration:none;transition:all .2s;border:1px solid var(--border)}.filter-tag:hover,.filter-tag.active{background:var(--primary);color:#fff;border-color:var(--primary)}.search-section{margin-bottom:24px}.search-section h3{margin-bottom:12px;font-size:1rem}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.section-header h3{margin:0}.clear-btn{background:none;border:none;color:var(--text-light);font-size:13px;cursor:pointer}.clear-btn:hover{color:var(--primary)}.search-tags{display:flex;flex-wrap:wrap;gap:10px}.search-tag{padding:8px 16px;background:#fff;border-radius:20px;font-size:14px;color:var(--text);text-decoration:none;transition:all .2s;border:1px solid var(--border)}.search-tag:hover{border-color:var(--primary);color:var(--primary)}.search-tag.hot{background:linear-gradient(135deg,#fff5f5,#ffe8e8);border-color:#ffb8b8}.result-count{color:var(--text-light);margin-bottom:16px}