*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--blue: #1877f2;--blue-dark: #166fe5;--blue-light: #e7f3ff;--gray-bg: #f0f2f5;--gray-border: #ddd;--gray-mid: #65676b;--gray-text: #1c1e21;--white: #fff;--red: #e41e3f;--green: #42b72a;--radius: 8px;--shadow: 0 1px 2px rgba(0,0,0,.1);--shadow-hover: 0 2px 8px rgba(0,0,0,.15);--topbar-height: 56px;--sidebar-width: 260px;--feed-width: 680px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--gray-bg);color:var(--gray-text);font-size:15px;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;background:none;font:inherit}input,textarea,select{font:inherit}.loading-page{display:flex;align-items:center;justify-content:center;height:100vh;font-size:16px;color:var(--gray-mid)}.topbar{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--topbar-height);background:var(--blue);display:flex;align-items:center;padding:0 16px;gap:12px;box-shadow:0 2px 4px #0003}.topbar-brand{color:var(--white);font-size:22px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}.topbar-tagline{color:#ffffffb3;font-size:12px;display:none}.topbar-search{flex:1;max-width:240px;background:#fff3;border:none;border-radius:20px;padding:8px 14px;color:var(--white);font-size:14px;outline:none}.topbar-search::placeholder{color:#ffffffb3}.topbar-search:focus{background:#ffffff4d}.topbar-nav{display:flex;align-items:center;gap:4px;margin:0 auto}.topbar-nav-btn{color:#ffffffb3;padding:8px 16px;border-radius:6px;font-size:14px;font-weight:500;transition:background .15s}.topbar-nav-btn:hover,.topbar-nav-btn.active{background:#ffffff26;color:var(--white)}.topbar-right{display:flex;align-items:center;gap:8px;margin-left:auto;position:relative}.topbar-account-btn{padding:0;border-radius:999px;display:inline-flex;align-items:center;justify-content:center}.topbar-account-btn:hover{background:transparent}.topbar-account-menu{position:absolute;right:44px;top:calc(100% + 8px);min-width:300px;background:var(--white);border:1px solid var(--gray-border);border-radius:12px;box-shadow:var(--shadow-hover);padding:8px;display:flex;flex-direction:column;gap:6px;z-index:150}.account-menu-section{display:flex;flex-direction:column;gap:4px}.account-menu-divider{height:1px;background:var(--gray-border)}.account-row{width:100%;text-align:left;padding:8px;border-radius:10px;display:flex;align-items:center;gap:10px;color:var(--gray-text)}.account-row:hover{background:var(--gray-bg)}.account-row:disabled{opacity:1;cursor:default}.account-row-avatar{width:40px;height:40px;flex-shrink:0}.account-row-text{display:flex;flex-direction:column;min-width:0}.account-row-name{font-weight:700;color:var(--gray-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.account-row-sub{font-size:12px;color:var(--gray-mid);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.account-current-badge{margin-left:auto;font-size:11px;font-weight:700;color:var(--blue);background:var(--blue-light);border-radius:999px;padding:3px 8px}.account-action{width:100%;text-align:left;padding:8px 10px;border-radius:8px;font-size:13px;color:var(--gray-text)}.account-action:hover{background:var(--gray-bg)}.topbar-avatar{width:36px;height:36px;border-radius:50%;background:#ffffff4d;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--white);overflow:hidden;flex-shrink:0}.topbar-avatar img{width:100%;height:100%;object-fit:cover}.topbar-username{color:var(--white);font-size:13px;font-weight:600}.topbar-btn{color:var(--white);font-size:13px;padding:6px 12px;border-radius:6px;background:#ffffff26;transition:background .15s}.topbar-btn:hover{background:#ffffff40}.page-layout{display:flex;padding-top:var(--topbar-height);min-height:100vh}.feed-layout{max-width:var(--feed-width);margin:0 auto;padding:20px 12px;width:100%}.card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;overflow:hidden}.card-header{display:flex;align-items:center;gap:10px;padding:12px 16px}.card-body{padding:0 16px 12px}.card-footer{display:flex;align-items:center;padding:4px 8px;border-top:1px solid var(--gray-border)}.avatar{width:40px;height:40px;border-radius:50%;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;overflow:hidden;flex-shrink:0}.avatar img{width:100%;height:100%;object-fit:cover}.avatar-sm{width:32px;height:32px;font-size:11px}.avatar-lg{width:80px;height:80px;font-size:28px}.avatar-xl{width:120px;height:120px;font-size:42px}.composer{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:12px 16px;margin-bottom:16px}.composer-top{display:flex;align-items:center;gap:10px;margin-bottom:12px}.composer-input{flex:1;background:var(--gray-bg);border:1px solid transparent;border-radius:20px;padding:10px 16px;font-size:15px;resize:none;outline:none;min-height:40px;max-height:200px;transition:border-color .15s}.composer-input:focus{border-color:var(--blue);background:var(--white)}.composer-input::placeholder{color:var(--gray-mid)}.composer-actions{display:flex;align-items:center;gap:8px;padding-top:8px;border-top:1px solid var(--gray-border)}.composer-action-btn{display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:6px;color:var(--gray-mid);font-size:13px;font-weight:600;transition:background .15s}.composer-action-btn:hover{background:var(--gray-bg)}.composer-submit{margin-left:auto;background:var(--blue);color:var(--white);padding:8px 20px;border-radius:6px;font-size:14px;font-weight:600;transition:background .15s}.composer-submit:hover{background:var(--blue-dark)}.composer-submit:disabled{opacity:.5;cursor:not-allowed}.post-card{margin-bottom:16px}.post-author-name{font-size:14px;font-weight:700;color:var(--gray-text)}.post-author-name:hover{text-decoration:underline}.post-meta{font-size:12px;color:var(--gray-mid)}.post-content{padding:0 16px 12px;font-size:15px;line-height:1.5;white-space:pre-wrap}.post-caption{padding-top:12px}.post-image{width:100%;max-height:500px;object-fit:cover;display:block}.post-image-placeholder{height:300px;background:var(--gray-bg);display:flex;align-items:center;justify-content:center;color:var(--gray-mid);font-size:14px}.post-stats{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;font-size:13px;color:var(--gray-mid)}.post-stats-likes,.post-stats-comments{display:flex;align-items:center;gap:4px}.post-actions{display:flex;flex:1}.post-action-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:6px;border-radius:4px;font-size:14px;font-weight:600;color:var(--gray-mid);transition:background .15s}.post-action-btn:hover{background:var(--gray-bg);color:var(--gray-text)}.post-action-btn.liked{color:var(--blue)}.comments-card{margin-top:12px;margin-bottom:20px}.comments-header{padding:14px 16px;border-bottom:1px solid var(--gray-border);font-size:14px;font-weight:700;color:var(--gray-dark)}.comments-loading,.comments-empty{padding:14px 16px;color:var(--gray-mid);font-size:14px}.comments-list{padding:8px 0}.comment-item{display:flex;align-items:flex-start;gap:10px;padding:8px 16px}.comment-avatar{width:36px;height:36px;flex-shrink:0}.comment-body{flex:1;min-width:0}.comment-meta{display:flex;align-items:center;gap:8px;margin-bottom:2px;font-size:12px;color:var(--gray-mid)}.comment-author-link{font-weight:700;color:var(--gray-text)}.comment-author-link:hover{text-decoration:underline}.comment-content{font-size:14px;line-height:1.45;white-space:pre-wrap;color:var(--gray-text)}.comment-form{border-top:1px solid var(--gray-border);padding:12px 16px}.comment-input{width:100%;border:1px solid var(--gray-border);border-radius:8px;padding:10px 12px;resize:vertical;min-height:58px;font-size:14px;background:var(--gray-bg);font-family:inherit}.comment-input:focus{outline:none;border-color:var(--blue);background:var(--white)}.comment-form-footer{display:flex;align-items:center;justify-content:space-between;margin-top:8px}.comment-char-count{font-size:12px;color:var(--gray-mid)}.profile-cover{height:180px;background:linear-gradient(135deg,var(--blue) 0%,#4a90d9 100%);border-radius:var(--radius) var(--radius) 0 0;position:relative}.profile-header{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px}.profile-avatar-wrapper{position:absolute;bottom:-44px;left:24px;border:4px solid var(--white);border-radius:50%;background:var(--white);z-index:1;line-height:0}.profile-avatar-wrapper .avatar-xl{width:88px;height:88px;font-size:30px}.profile-header-body{display:flex;align-items:flex-start;gap:16px;padding:56px 24px 20px}.profile-info{flex:1;min-width:0}.profile-display-name{font-size:22px;font-weight:800;line-height:1.2;margin-bottom:2px;color:var(--gray-dark)}.profile-username{font-size:14px;color:var(--gray-mid);margin-bottom:4px}.profile-bio{font-size:14px;margin-top:6px;color:var(--gray-text);line-height:1.5}.profile-instruments{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.instrument-tag{background:var(--blue-light);color:var(--blue);font-size:12px;font-weight:600;padding:3px 10px;border-radius:12px}.profile-actions{display:flex;gap:8px;flex-shrink:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border-radius:6px;font-size:14px;font-weight:600;transition:all .15s}.btn-primary{background:var(--blue);color:var(--white)}.btn-primary:hover{background:var(--blue-dark)}.btn-secondary{background:var(--gray-bg);color:var(--gray-text)}.btn-secondary:hover{background:var(--gray-border)}.btn-danger{background:var(--red);color:var(--white)}.btn-danger:hover{background:#c01830}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{padding:5px 12px;font-size:12px}.auth-page{min-height:100vh;background:var(--gray-bg);display:flex;align-items:center;justify-content:center;padding:20px}.auth-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow-hover);padding:32px 28px;width:100%;max-width:400px}.auth-brand{text-align:center;margin-bottom:20px}.auth-brand-name{font-size:36px;font-weight:800;color:var(--blue);display:block}.auth-brand-tagline{font-size:14px;color:var(--gray-mid);margin-top:4px}.auth-card h2{font-size:22px;font-weight:700;margin-bottom:20px;text-align:center}.form-error{background:#fff0f0;border:1px solid #ffcccc;border-radius:6px;padding:10px 14px;color:var(--red);font-size:13px;margin-bottom:16px}.form-group{margin-bottom:14px}.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:4px;color:var(--gray-text)}.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 12px;border:1px solid var(--gray-border);border-radius:6px;font-size:15px;outline:none;transition:border-color .15s}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--blue)}.auth-footer{margin-top:16px;text-align:center;font-size:13px;color:var(--gray-mid)}.auth-footer a{color:var(--blue);font-weight:600}.auth-footer a:hover{text-decoration:underline}.inbox-list{list-style:none}.inbox-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--gray-border);cursor:pointer;transition:background .1s;text-decoration:none;color:inherit}.inbox-item:hover{background:var(--gray-bg)}.inbox-item.unread .inbox-preview{font-weight:700;color:var(--gray-text)}.inbox-preview{font-size:13px;color:var(--gray-mid);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.inbox-name{font-size:14px;font-weight:600}.inbox-meta{font-size:11px;color:var(--gray-mid);white-space:nowrap}.chat-window{display:flex;flex-direction:column;height:calc(100vh - var(--topbar-height) - 40px)}.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:8px}.chat-bubble-row{display:flex;align-items:flex-end;gap:8px}.chat-bubble-row.mine{flex-direction:row-reverse}.chat-bubble{max-width:60%;padding:8px 12px;border-radius:16px;font-size:14px;line-height:1.4}.chat-bubble-row:not(.mine) .chat-bubble{background:var(--gray-bg);color:var(--gray-text);border-bottom-left-radius:4px}.chat-bubble-row.mine .chat-bubble{background:var(--blue);color:var(--white);border-bottom-right-radius:4px}.chat-bubble-time{font-size:10px;color:var(--gray-mid);margin-bottom:2px}.chat-input-row{display:flex;align-items:center;gap:8px;padding:12px 16px;border-top:1px solid var(--gray-border);background:var(--white)}.chat-input{flex:1;background:var(--gray-bg);border:1px solid transparent;border-radius:20px;padding:10px 16px;font-size:14px;outline:none;resize:none;min-height:40px;max-height:120px}.chat-input:focus{border-color:var(--blue);background:var(--white)}.chat-send-btn{background:var(--blue);color:var(--white);width:36px;height:36px;border-radius:50%;font-size:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s}.chat-send-btn:hover{background:var(--blue-dark)}.chat-send-btn:disabled{opacity:.5;cursor:not-allowed}.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}.photo-grid-item{aspect-ratio:1;overflow:hidden;cursor:pointer;position:relative;background:var(--gray-bg)}.photo-grid-item img{width:100%;height:100%;object-fit:cover;transition:transform .2s}.photo-grid-item:hover img{transform:scale(1.04)}@keyframes skeleton-pulse{0%,to{opacity:1}50%{opacity:.5}}.skeleton{background:var(--gray-border);border-radius:4px;animation:skeleton-pulse 1.5s ease-in-out infinite}.skeleton-avatar{width:40px;height:40px;border-radius:50%}.skeleton-text{height:14px;margin-bottom:8px;width:60%}.skeleton-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:16px;height:180px}.page-title{font-size:20px;font-weight:800;margin-bottom:16px}.empty-state{text-align:center;padding:40px 20px;color:var(--gray-mid);font-size:14px}.unread-badge{background:var(--red);color:var(--white);font-size:11px;font-weight:700;min-width:18px;height:18px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;padding:0 4px}.text-muted{color:var(--gray-mid)}.text-sm{font-size:13px}.mt-8{margin-top:8px}.mb-8{margin-bottom:8px}