:root{--color-primary: #059669;--color-primary-hover: #047857;--color-secondary: #34D399;--color-accent: #F59E0B;--color-clover: #10B981;--color-clover-light: #6EE7B7;--color-success: #059669;--color-error: #EF4444;--color-warning: #F59E0B;--bg-body: #F8FAFC;--bg-card: #FFFFFF;--bg-glass: rgba(255, 255, 255, .9);--bg-glass-dark: rgba(255, 255, 255, .95);--text-main: #1E293B;--text-muted: #64748B;--text-light: #F1F5F9;--border-light: #E2E8F0;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -1px rgba(0, 0, 0, .03);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .05), 0 4px 6px -2px rgba(0, 0, 0, .02);--shadow-glow: 0 0 15px rgba(16, 185, 129, .2);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: 1rem;--radius-xl: 1.5rem;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .3s cubic-bezier(.4, 0, .2, 1)}@media(prefers-color-scheme:dark){:root{--bg-body: #F8FAFC;--bg-card: #FFFFFF;--bg-glass: rgba(255, 255, 255, .9);--text-main: #1E293B;--text-muted: #64748B;--border-light: #E2E8F0}}body{font-family:Inter,Noto Sans JP,Noto Sans SC,sans-serif;background-color:var(--bg-body);color:var(--text-main);margin:0;padding:0;line-height:1.6;-webkit-font-smoothing:antialiased}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.glass{background:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.6);box-shadow:var(--shadow-sm)}.card{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:1.5rem;transition:transform var(--transition-fast),box-shadow var(--transition-fast);border:1px solid var(--border-light)}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--color-primary)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.6rem 1.2rem;border-radius:var(--radius-full);font-weight:600;cursor:pointer;transition:all var(--transition-fast);border:none;outline:none;font-size:.95rem;letter-spacing:.01em}.btn-primary{background-color:var(--color-primary);color:#fff;box-shadow:0 2px 4px #05966933}.btn-primary:hover{background-color:var(--color-primary-hover);box-shadow:0 4px 8px #0596694d;transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--text-muted)}.btn-ghost:hover{background:#00000008;color:var(--color-primary)}h1,h2,h3,h4,h5,h6{margin-top:0;font-weight:700;letter-spacing:-.02em;color:var(--text-main)}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .5s ease-out forwards}.clover-icon{display:inline-block;width:20px;height:20px;background:var(--color-clover);clip-path:polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);margin:0 4px}.clover-badge{background:linear-gradient(135deg,var(--color-clover) 0%,var(--color-clover-light) 100%);color:#fff;padding:.25rem .75rem;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;display:inline-flex;align-items:center;gap:.25rem}.clover-badge:before{content:"🍀";font-size:.875rem}.clover-pattern{position:relative;overflow:hidden}.clover-pattern:before{content:"";position:absolute;top:-50%;right:-50%;width:200%;height:200%;background-image:radial-gradient(circle at 20% 20%,rgba(16,185,129,.1) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(16,185,129,.1) 0%,transparent 50%);pointer-events:none;z-index:0}.clover-pattern>*{position:relative;z-index:1}.navbar{position:sticky;top:0;z-index:1000;border-bottom:1px solid var(--border-light);background:#ffffffd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.navbar-container{display:flex;align-items:center;justify-content:space-between;height:64px}.logo-link{display:flex;align-items:center;gap:.5rem;text-decoration:none;font-weight:800;font-size:1.25rem;color:var(--color-primary);letter-spacing:-.02em}.logo-icon{width:32px;height:32px;background:var(--gradient-primary);border-radius:8px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px #10b98133}.search-bar-container{position:relative;width:280px;margin:0 1.5rem}.search-input{width:100%;padding:.5rem 1rem .5rem 2.5rem;border-radius:var(--radius-full);border:1px solid var(--border-light);background:var(--bg-card);font-size:.9rem;transition:all .2s}.search-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #10b9811a;outline:none}.search-icon{position:absolute;left:.8rem;top:50%;transform:translateY(-50%);color:var(--text-muted)}.nav-menu{display:flex;align-items:center;gap:1.5rem}.nav-item{text-decoration:none;color:var(--text-main);font-weight:500;font-size:.95rem;transition:color .2s;display:flex;align-items:center}.nav-item:hover{color:var(--color-primary)}.nav-actions{display:flex;align-items:center;gap:.8rem}.icon-btn{background:transparent;border:none;padding:.5rem;border-radius:50%;cursor:pointer;color:var(--text-main);transition:background .2s;display:flex;align-items:center;justify-content:center;position:relative}.icon-btn:hover{background:var(--bg-hover);color:var(--color-primary)}.nav-badge{position:absolute;top:0;right:0;background:#ef4444;color:#fff;font-size:.65rem;width:16px;height:16px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;border:2px solid white}.nav-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;border:2px solid white;box-shadow:0 2px 4px #0000001a}.profile-btn-nav{padding:0;border-radius:50%;overflow:hidden}.lang-switcher,.notification-wrapper{position:relative}.lang-code{font-size:.8rem;font-weight:700;margin-left:4px}.lang-dropdown,.notification-dropdown{position:absolute;top:120%;right:0;background:#fff;border:1px solid var(--border-light);border-radius:12px;padding:.5rem;display:flex;flex-direction:column;min-width:120px;box-shadow:var(--shadow-lg);z-index:1001}.notification-dropdown{width:280px;padding:0}.notification-header{padding:.8rem 1rem;font-weight:700;border-bottom:1px solid var(--border-light);font-size:.9rem}.notification-item{padding:.8rem 1rem;border-bottom:1px solid var(--border-light);cursor:pointer;transition:background .2s}.notification-item:hover{background:var(--bg-hover)}.notification-item.unread{background:#ecfdf5}.notification-item p{margin:0 0 .3rem;font-size:.85rem;color:var(--text-main);font-weight:500}.notification-item span{font-size:.75rem;color:var(--text-muted)}.lang-option{background:transparent;border:none;padding:.6rem 1rem;text-align:left;cursor:pointer;border-radius:8px;font-size:.9rem;color:var(--text-main);transition:background .2s}.lang-option:hover{background:var(--bg-hover)}.lang-option.active{color:var(--color-primary);font-weight:700}.mobile-toggle,.mobile-only{display:none}@media(max-width:768px){.desktop-only{display:none!important}.mobile-toggle{display:flex}.mobile-only{display:block}.nav-menu{position:fixed;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:1.5rem;gap:1rem;border-bottom:1px solid var(--border-light);transform:translateY(-150%);transition:transform .3s ease-in-out;box-shadow:var(--shadow-md)}.nav-menu.is-open{transform:translateY(0)}.nav-item{width:100%;padding:.8rem;border-radius:8px}.nav-item:hover{background:var(--bg-hover)}}.file-attachment{display:flex;align-items:center;gap:12px;padding:12px;background:var(--bg-card);border-radius:8px;border-left:3px solid #3b82f6;border:1px solid var(--border-light);transition:all .2s ease}.file-attachment:hover{background:var(--bg-glass);transform:translate(2px)}.file-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:#0000000a;border-radius:8px;flex-shrink:0}.file-info{flex:1;min-width:0}.file-name{font-size:14px;font-weight:500;color:var(--text-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}.file-meta{display:flex;gap:8px;font-size:12px;color:var(--text-muted)}.file-category{text-transform:uppercase;font-weight:600}.file-actions{display:flex;gap:4px}.file-action-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;background:#0000000a;border-radius:6px;cursor:pointer;color:var(--text-main);transition:all .2s ease;text-decoration:none}.file-action-btn:hover{background:#00000014;transform:scale(1.05)}.file-action-btn.download{color:#10b981}.file-action-btn.remove{color:#ef4444}.file-action-btn.remove:hover{background:#ef444433}@media(max-width:768px){.file-attachment{padding:10px;gap:10px}.file-icon{width:36px;height:36px}.file-name{font-size:13px}.file-meta{font-size:11px}.file-action-btn{width:28px;height:28px}}.lightbox-overlay{position:fixed;inset:0;background:#000000e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:9999;display:flex;align-items:center;justify-content:center;padding:2rem;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.lightbox-close{position:absolute;top:20px;right:20px;width:50px;height:50px;background:#ffffff1a;border:2px solid rgba(255,255,255,.3);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;color:#fff;transition:all .2s;z-index:10000}.lightbox-close:hover{background:#fff3;transform:scale(1.1)}.lightbox-image{max-width:90%;max-height:90%;object-fit:contain;border-radius:8px;box-shadow:0 20px 60px #00000080;animation:zoomIn .3s ease-out}@keyframes zoomIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}@media(max-width:768px){.lightbox-overlay{padding:1rem}.lightbox-image{max-width:95%;max-height:95%}.lightbox-close{top:10px;right:10px;width:40px;height:40px}}.post-card{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--border-light);padding:1.5rem;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.post-header-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:.5rem}.category-badge{font-size:.75rem;padding:.3rem .8rem;border-radius:var(--radius-full);font-weight:700;letter-spacing:.02em;display:inline-block}.tag-job{background-color:#eff6ff;color:#2563eb}.tag-class{background-color:#fff7ed;color:#ea580c}.tag-other{background-color:#f3f4f6;color:#4b5563}.post-meta-simple{display:flex;gap:.8rem;font-size:.8rem;color:var(--text-muted);margin-bottom:.8rem;align-items:center}.author-name{font-weight:600;color:var(--text-main)}.post-title{font-size:1.25rem;font-weight:700;margin:0 0 .8rem;line-height:1.4;color:var(--text-main)}.post-text{color:var(--text-muted);font-size:.95rem;margin:0 0 1rem;line-height:1.6;white-space:pre-wrap}.post-images{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem;margin-bottom:1rem}.post-image{width:100%;height:auto;max-height:300px;border-radius:var(--radius-md);object-fit:cover;border:1px solid var(--border-light);cursor:pointer;transition:transform .2s}.post-attachments{display:flex;flex-direction:column;gap:.75rem;margin-top:1rem;margin-bottom:1rem}.post-image:hover{transform:scale(1.02);box-shadow:var(--shadow-md)}.post-tags-simple{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.2rem}.hash-tag{font-size:.85rem;color:var(--color-primary);background:#f0fdf4;padding:.2rem .6rem;border-radius:4px}.post-footer{display:flex;justify-content:flex-start;align-items:center;gap:.75rem;padding-top:1rem;border-top:1px solid var(--border-light);margin-top:auto;flex-wrap:wrap}.action-btn{background:var(--bg-card)!important;border:2px solid var(--border-light)!important;display:flex;align-items:center;gap:.5rem;color:var(--text-main)!important;font-size:.9rem;font-weight:600;cursor:pointer;padding:.6rem 1rem;border-radius:var(--radius-lg);transition:all .2s 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pointer"]{pointer-events:auto}.action-btn.favorited{color:#f59e0b;opacity:1}.action-btn:disabled{opacity:.5;cursor:not-allowed}.action-btn:not(:disabled):hover{background:#f1f5f9;color:var(--color-primary);opacity:1}.icon-btn-small{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:.2rem;border-radius:4px;transition:color .2s}.icon-btn-small:hover{color:#ef4444;background:#fef2f2}.comments-section{margin-top:1rem;padding-top:1rem;border-top:1px dashed var(--border-light)}.comments-list{display:flex;flex-direction:column;gap:1rem;margin-bottom:1rem;max-height:400px;overflow-y:auto}.comment-item{display:flex;gap:.75rem;padding:.75rem;background:#00000005;border-radius:8px;position:relative}.comment-delete-btn{position:absolute;top:8px;right:8px;background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:4px;transition:all .2s;opacity:0}.comment-item:hover .comment-delete-btn{opacity:1}.comment-delete-btn:hover{background:#ef44441a;color:#ef4444}.comment-avatar{flex-shrink:0}.comment-avatar img{width:32px;height:32px;border-radius:50%;object-fit:cover}.comment-content{flex:1;min-width:0}.comment-header{display:flex;align-items:center;gap:.5rem;margin-bottom:.25rem}.comment-author{font-weight:600;font-size:.875rem;color:var(--text-main)}.comment-time{font-size:.75rem;color:var(--text-muted)}.comment-text{font-size:.875rem;color:var(--text-main);line-height:1.5;margin:0}.comment-input-wrapper{display:flex;gap:.5rem}.comment-input-wrapper input{flex:1;padding:.5rem 1rem;border-radius:var(--radius-full);border:1px solid var(--border-light);font-size:.9rem}.btn-send{background:var(--color-primary);color:#fff;border:none;padding:.5rem 1rem;border-radius:var(--radius-full);cursor:pointer;font-size:.85rem;font-weight:600;transition:all .2s}.btn-send:hover:not(:disabled){background:#059669;transform:translateY(-1px)}.btn-send:disabled{background:var(--border-light);cursor:not-allowed;opacity:.6}.home-page{min-height:100vh;background:linear-gradient(180deg,#f0fdf4,#f8fafc)}.hero-section{padding:8rem 0 6rem;position:relative;overflow:hidden}.hero-section:before{content:"";position:absolute;top:-10%;right:-5%;width:600px;height:600px;background:radial-gradient(circle,rgba(52,211,153,.1) 0%,transparent 70%);border-radius:50%;z-index:0}.hero-container{display:flex;align-items:center;justify-content:space-between;gap:4rem;position:relative;z-index:1}.hero-content{flex:1;max-width:600px}.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:#fff;color:var(--color-primary);border-radius:var(--radius-full);font-size:.875rem;font-weight:600;margin-bottom:1.5rem;border:1px solid rgba(16,185,129,.2);box-shadow:var(--shadow-sm)}.hero-title{font-size:3.5rem;line-height:1.1;margin-bottom:1.5rem;color:var(--text-main)}.hero-subtitle{font-size:1.25rem;color:var(--text-muted);margin-bottom:2.5rem;line-height:1.6}.text-gradient{background:linear-gradient(to right,var(--color-primary),var(--color-accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-weight:800}.hero-actions{display:flex;gap:1rem}.btn-lg{padding:.8rem 1.8rem;font-size:1.125rem}.hero-visual{flex:1;display:flex;justify-content:center;align-items:center;position:relative}.clover-visual{width:320px;height:320px;position:relative;animation:float 6s ease-in-out infinite}.clover-leaf{position:absolute;width:150px;height:150px;background:linear-gradient(135deg,#6ee7b7,#10b981);border-radius:50%;opacity:.95;box-shadow:0 10px 25px #10b98140;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);border:1px solid rgba(255,255,255,.4)}.leaf-1{top:0;left:85px;border-radius:50% 50% 0;transform:rotate(45deg)}.leaf-2{top:85px;right:0;border-radius:50% 50% 50% 0;transform:rotate(45deg)}.leaf-3{bottom:0;left:85px;border-radius:0 50% 50%;transform:rotate(45deg)}.leaf-4{top:85px;left:0;border-radius:50% 0 50% 50%;transform:rotate(45deg)}.clover-center{position:absolute;top:50%;left:50%;width:24px;height:24px;background:#fcd34d;border-radius:50%;transform:translate(-50%,-50%);box-shadow:0 0 15px #fcd34d99;z-index:10;border:2px solid white}@keyframes float{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-20px) rotate(2deg)}}.features-section{padding:4rem 0;background:#fff}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2.5rem}.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem}.post-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--border-light);box-shadow:var(--shadow-sm);transition:all .3s ease}.post-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--color-primary)}.post-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.tag{font-size:.75rem;padding:.3rem .8rem;border-radius:var(--radius-full);font-weight:700;letter-spacing:.02em}.tag-lab{background-color:#ecfdf5;color:#059669}.post-date{font-size:.8rem;color:var(--text-muted);font-weight:500}.post-title{font-size:1.25rem;margin-bottom:.75rem;line-height:1.4;color:var(--text-main)}.post-excerpt{color:var(--text-muted);font-size:.95rem;margin-bottom:1.5rem;flex-grow:1;line-height:1.6}.post-footer{display:flex;justify-content:space-between;align-items:center;padding-top:1rem;border-top:1px solid var(--border-light)}.post-author{display:flex;align-items:center;gap:.6rem;font-size:.875rem;color:var(--text-main);font-weight:500}.avatar-placeholder{width:28px;height:28px;background:linear-gradient(135deg,#e2e8f0,#cbd5e1);border-radius:50%}.post-stats{font-size:.875rem;color:var(--text-muted);display:flex;align-items:center;gap:.25rem}@media(max-width:768px){.hero-container{flex-direction:column;text-align:center;gap:3rem}.hero-actions{justify-content:center}.hero-title{font-size:2.5rem}}.create-post-page{padding:2rem 0;min-height:calc(100vh - 64px);background:radial-gradient(circle at top left,rgba(16,185,129,.05),transparent 40%)}.create-card{max-width:800px;margin:0 auto;padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}.page-title{font-size:1.75rem;margin-bottom:1.5rem;text-align:center;color:var(--text-main)}.restrictions-box{background:#f59e0b1a;border:1px solid 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#0000001a;z-index:10}.delete-btn-item:hover{background:#fff;color:#dc2626}@media(max-width:768px){.profile-info-wrapper{flex-direction:column;align-items:center;text-align:center;margin-top:-50px}.profile-avatar-large{margin-right:0;margin-bottom:1rem;width:100px;height:100px}.profile-meta{justify-content:center;margin-bottom:1rem}.profile-stats{justify-content:space-around}.stat-item{margin-right:0;align-items:center}.profile-tabs{overflow-x:auto}.tab-btn{white-space:nowrap;padding:1rem}}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background:#fff;padding:2rem;border-radius:12px;width:90%;max-width:400px}.avatar-upload-overlay{position:absolute;bottom:0;right:0;background:#0009;border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.avatar-upload-overlay:hover{background:#10b981e6;transform:scale(1.1)}.cover-upload-btn{position:absolute;top:10px;right:10px;background:#0009;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:8px;padding:8px 12px;display:flex;align-items:center;cursor:pointer;transition:all .2s}.cover-upload-btn:hover{background:#10b981e6;transform:translateY(-2px)}.profile-bio-text{margin-top:.5rem;color:var(--text-main);font-size:.95rem;line-height:1.5}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;background:radial-gradient(circle at center,rgba(16,185,129,.05),transparent 70%);margin-top:0;padding-top:calc(64px + 2rem)}.auth-container{width:100%;max-width:400px;padding:2.5rem;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);background:var(--bg-card);border:1px solid var(--border-light)}.auth-header{text-align:center;margin-bottom:2rem}.auth-logo{width:64px;height:64px;background:linear-gradient(135deg,var(--color-secondary),var(--color-primary));border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;box-shadow:0 10px 20px #10b98133;transform:rotate(-10deg)}.auth-header h2{font-size:1.75rem;margin-bottom:.5rem;color:var(--text-main)}.auth-subtitle{color:var(--text-muted);font-size:.95rem}.auth-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-weight:600;font-size:.9rem;color:var(--text-main)}.input-wrapper{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:1rem;color:var(--text-muted);pointer-events:none}.input-wrapper input{width:100%;padding:.75rem 1rem .75rem 2.75rem;border:1px solid var(--border-light);border-radius:var(--radius-md);font-size:1rem;background:#ffffff80;transition:all var(--transition-fast)}.input-wrapper input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #10b9811a;background:#fff}.btn-block{width:100%;margin-top:1rem;gap:.5rem}.auth-footer{text-align:center;margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border-light);color:var(--text-muted);font-size:.9rem}.text-link{color:var(--color-primary);text-decoration:none;font-weight:600}.text-link:hover{text-decoration:underline}.chat-page{padding:2rem 0;height:calc(100vh - 64px);background:var(--bg-body);display:flex;justify-content:center}.chat-container{width:100%;max-width:1000px;height:100%;border-radius:var(--radius-lg);display:flex;overflow:hidden;margin:0 1rem}.chat-sidebar{width:320px;background:#ffffffe6;border-right:1px solid var(--border-light);display:flex;flex-direction:column}.sidebar-header{padding:1.5rem;border-bottom:1px solid var(--border-light)}.sidebar-header h2{font-size:1.5rem;font-weight:700;color:var(--text-main);margin:0}.chat-list{flex:1;overflow-y:auto}.chat-list-item{display:flex;align-items:center;padding:1rem;cursor:pointer;transition:background .2s;border-bottom:1px solid var(--border-light)}.chat-list-item:hover{background:var(--bg-hover)}.chat-list-item.active{background:#ecfdf5;border-left:4px solid var(--color-primary)}.chat-avatar{width:48px;height:48px;border-radius:50%;margin-right:1rem}.chat-info{flex:1;min-width:0}.chat-top{display:flex;justify-content:space-between;margin-bottom:.2rem}.chat-name{font-weight:600;color:var(--text-main)}.chat-time{font-size:.75rem;color:var(--text-muted)}.chat-preview{font-size:.85rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0}.unread-badge{background:var(--color-primary);color:#fff;font-size:.75rem;padding:.2rem .5rem;border-radius:10px;margin-left:.5rem}.chat-main{flex:1;display:flex;flex-direction:column;background:#fff}.chat-header{padding:1rem 1.5rem;border-bottom:1px solid var(--border-light);display:flex;align-items:center;background:#fffffff2}.header-avatar{width:40px;height:40px;border-radius:50%;margin-right:1rem}.header-info h3{margin:0;font-size:1.1rem;color:var(--text-main)}.status-indicator{font-size:.8rem;color:var(--color-primary)}.header-actions{margin-left:auto;display:flex;gap:.5rem}.messages-area{flex:1;padding:1.5rem;overflow-y:auto;display:flex;flex-direction:column;gap:1rem;background:#f9fafb}.message-bubble{max-width:70%;padding:.8rem 1.2rem;border-radius:18px;position:relative;font-size:.95rem;line-height:1.4}.message-bubble.received{align-self:flex-start;background:#fff;border:1px solid var(--border-light);border-bottom-left-radius:4px}.message-bubble.sent{align-self:flex-end;background:var(--color-primary);color:#fff;border-bottom-right-radius:4px}.message-time{font-size:.7rem;opacity:.7;margin-top:.4rem;display:block;text-align:right}.chat-input-area{padding:1rem;border-top:1px solid var(--border-light);display:flex;gap:1rem;background:#fff}.chat-input-area input{flex:1;padding:.8rem 1.2rem;border-radius:var(--radius-full);border:1px solid var(--border-light);outline:none;transition:border-color .2s}.chat-input-area input:focus{border-color:var(--color-primary)}.send-btn{background:var(--color-primary);color:#fff;border:none;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .2s}.send-btn:hover{transform:scale(1.05)}.mobile-only{display:none}@media(max-width:768px){.chat-sidebar{width:100%}.chat-sidebar.hidden-mobile,.chat-main.hidden-mobile{display:none}.mobile-only{display:block;margin-right:1rem;background:none;border:none;cursor:pointer}}.follow-list-page{min-height:100vh;padding:2rem 0;background:var(--bg-gradient)}.follow-list-header{display:flex;align-items:center;gap:1rem;margin-bottom:2rem}.back-btn{background:#ffffff1a;border:none;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text);transition:all .3s ease}.back-btn:hover{background:#fff3;transform:translate(-2px)}.follow-list-header h1{margin:0;font-size:1.5rem;font-weight:600}.loading-state,.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-muted)}.user-list{display:flex;flex-direction:column;gap:1rem}.user-item{display:flex;align-items:center;padding:1rem;border-radius:12px;gap:1rem}.user-info{display:flex;align-items:center;gap:1rem;flex:1}.user-avatar{width:50px;height:50px;border-radius:50%;object-fit:cover}.user-details{flex:1}.user-details h3{margin:0 0 .25rem;font-size:1rem;font-weight:600}.user-grade{font-size:.85rem;color:var(--text-muted);margin-right:.5rem}.user-bio{margin:.5rem 0 0;font-size:.9rem;color:var(--text-muted);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.follow-btn{padding:.5rem 1.5rem;border:1px solid var(--primary);border-radius:20px;background:transparent;color:var(--primary);cursor:pointer;font-size:.9rem;font-weight:500;transition:all .3s ease;white-space:nowrap}.follow-btn:hover,.follow-btn.following{background:var(--primary);color:#fff}.follow-btn.following:hover{background:transparent;color:var(--primary)}@media(max-width:768px){.follow-list-page{padding:1rem 0}.user-item{padding:.75rem}.user-avatar{width:40px;height:40px}.follow-btn{padding:.4rem 1rem;font-size:.85rem}}.pwa-install-prompt{position:fixed;bottom:20px;left:50%;transform:translate(-50%);z-index:9999;max-width:500px;width:calc(100% - 40px);animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translate(-50%) translateY(20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.pwa-prompt-content{background:linear-gradient(135deg,#10b981f2,#059669f2);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:16px;padding:20px;box-shadow:0 10px 40px #0000004d;display:flex;align-items:center;gap:16px;border:1px solid rgba(255,255,255,.2)}.pwa-prompt-icon{display:flex;align-items:center;justify-content:center;width:48px;height:48px;background:#fff3;border-radius:12px;color:#fff;flex-shrink:0}.pwa-prompt-text{flex:1;color:#fff}.pwa-prompt-text h3{margin:0 0 4px;font-size:16px;font-weight:600}.pwa-prompt-text p{margin:0;font-size:13px;opacity:.9}.pwa-prompt-actions{display:flex;gap:8px;align-items:center}.pwa-btn{border:none;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.pwa-btn-primary{background:#fff;color:#059669;padding:10px 20px;font-size:14px}.pwa-btn-primary:hover{background:#ffffffe6;transform:scale(1.05)}.pwa-btn-dismiss{background:#fff3;color:#fff;padding:8px;width:36px;height:36px}.pwa-btn-dismiss:hover{background:#ffffff4d}@media(max-width:768px){.pwa-install-prompt{bottom:80px;width:calc(100% - 32px)}.pwa-prompt-content{padding:16px;gap:12px}.pwa-prompt-icon{width:40px;height:40px}.pwa-prompt-text h3{font-size:14px}.pwa-prompt-text p{font-size:12px}.pwa-btn-primary{padding:8px 16px;font-size:13px}}@supports (-webkit-touch-callout: none){.pwa-install-prompt{bottom:calc(20px + env(safe-area-inset-bottom))}}