:root{--primary:#4361ee;--primary-dark:#3451d9;--primary-light:#ebedfd;--accent:#f72585;--accent-light:#fde8f2;--success:#2ec4b6;--warning:#ff9f1c;--danger:#e63946;--bg:#f0f2f5;--bg-card:#fff;--bg-dark:#1a1a2e;--surface:#f8f9fa;--text-primary:#1a1a2e;--text-secondary:#6b7280;--text-muted:#9ca3af;--text-light:#fff;--border:#e5e7eb;--border-focus:#4361ee;--shadow-sm:0 1px 3px #00000014;--shadow-md:0 4px 16px #0000001a;--shadow-lg:0 8px 32px #0000001f;--shadow-card:0 2px 12px #00000012;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-full:9999px;--font:"Inter", sans-serif;--transition:all .2s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--text-primary);-webkit-font-smoothing:antialiased;line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{cursor:pointer;font-family:var(--font);border:none;outline:none}input,textarea{font-family:var(--font);border:none;outline:none}.container{max-width:680px;margin:0 auto;padding:0 16px}.btn{border-radius:var(--radius-full);transition:var(--transition);align-items:center;gap:6px;padding:10px 20px;font-size:14px;font-weight:600;display:inline-flex}.btn-primary{background:var(--primary);color:var(--text-light)}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px #4361ee59}.btn-outline{color:var(--primary);border:2px solid var(--primary);background:0 0}.btn-outline:hover{background:var(--primary-light)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#c62f3b}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.card{background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-card);border:1px solid var(--border)}.form-group{flex-direction:column;gap:6px;margin-bottom:16px;display:flex}.form-label{color:var(--text-secondary);letter-spacing:.3px;font-size:13px;font-weight:600}.form-input{border:1.5px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);background:var(--surface);transition:var(--transition);padding:12px 16px;font-size:14px}.form-input:focus{border-color:var(--border-focus);background:#fff;box-shadow:0 0 0 3px #4361ee1a}.form-input::placeholder{color:var(--text-muted)}.form-error{color:var(--danger);margin-top:4px;font-size:12px}.avatar{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;font-size:15px;font-weight:700;display:flex;overflow:hidden}.avatar img{object-fit:cover;width:100%;height:100%}.avatar-sm{width:32px;height:32px;font-size:12px}.avatar-lg{width:52px;height:52px;font-size:18px}.spinner{border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:36px;height:36px;margin:32px auto;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.toast-container{z-index:9999;flex-direction:column;gap:10px;display:flex;position:fixed;bottom:24px;right:24px}.toast{border-radius:var(--radius-md);color:#fff;box-shadow:var(--shadow-lg);padding:12px 18px;font-size:14px;font-weight:500;animation:.3s slideIn}.toast-success{background:var(--success)}.toast-error{background:var(--danger)}@keyframes slideIn{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}@media (width<=600px){.container{padding:0 12px}.btn{padding:9px 16px;font-size:13px}}.navbar{z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);background:#fffffff2;position:sticky;top:0}.navbar-inner{justify-content:space-between;align-items:center;height:60px;display:flex}.navbar-brand{align-items:center;gap:8px;display:flex}.navbar-wave{font-size:22px}.navbar-name{background:linear-gradient(90deg, var(--primary), var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:18px;font-weight:800}.navbar-actions{align-items:center;display:flex}.navbar-user{align-items:center;gap:10px;display:flex}.navbar-username{color:var(--text-secondary);font-size:14px;font-weight:600}.navbar-logout{padding:7px 14px;font-size:13px}.navbar-auth-links{gap:10px;display:flex}@media (width<=480px){.navbar-username{display:none}.navbar-auth-links{gap:8px}.navbar-name{font-size:16px}}.create-post{margin-bottom:16px;padding:18px}.create-post-top{align-items:flex-start;gap:12px;display:flex}.create-post-input-wrap{flex-direction:column;flex:1;gap:10px;display:flex}.create-post-textarea{resize:none;border:1.5px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);background:var(--surface);transition:var(--transition);padding:12px 14px;font-size:15px;line-height:1.5}.create-post-textarea:focus{border-color:var(--primary);background:#fff;outline:none;box-shadow:0 0 0 3px #4361ee1a}.create-post-textarea::placeholder{color:var(--text-muted)}.create-post-preview{border-radius:var(--radius-sm);max-height:240px;position:relative;overflow:hidden}.create-post-preview img{object-fit:cover;border-radius:var(--radius-sm);width:100%;max-height:240px}.create-post-remove-img{color:#fff;cursor:pointer;background:#0009;border:none;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:12px;display:flex;position:absolute;top:8px;right:8px}.create-post-remove-img:hover{background:#000000d9}.create-post-error{color:var(--danger);margin:8px 0 0;font-size:13px}.create-post-footer{border-top:1px solid var(--border);justify-content:space-between;align-items:center;margin-top:12px;padding-top:12px;display:flex}.create-post-actions{gap:8px;display:flex}.create-post-icon-btn{border-radius:var(--radius-full);background:var(--surface);color:var(--text-secondary);border:1.5px solid var(--border);transition:var(--transition);cursor:pointer;align-items:center;gap:6px;padding:7px 14px;font-size:14px;font-weight:500;display:flex}.create-post-icon-btn:hover{background:var(--primary-light);color:var(--primary);border-color:var(--primary)}.create-post-submit{padding:9px 20px;font-size:14px}@media (width<=480px){.create-post-icon-btn span{display:none}}.comment-section{border-top:1px solid var(--border);margin-top:12px;padding-top:14px;animation:.2s fadeIn}.comment-list{flex-direction:column;gap:12px;max-height:300px;margin-bottom:14px;display:flex;overflow-y:auto}.comment-empty{color:var(--text-muted);text-align:center;padding:8px 0;font-size:13px}.comment-item{align-items:flex-start;gap:10px;display:flex}.comment-avatar{flex-shrink:0}.comment-body{background:var(--surface);border-radius:var(--radius-sm);flex:1;padding:10px 12px}.comment-header{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:4px;display:flex}.comment-username{color:var(--text-primary);font-size:13px;font-weight:700}.comment-date{color:var(--text-muted);font-size:11px}.comment-text{color:var(--text-primary);word-break:break-word;font-size:14px;line-height:1.5}.comment-form{align-items:center;gap:10px;display:flex}.comment-input{border-radius:var(--radius-full);border:1.5px solid var(--border);background:var(--surface);color:var(--text-primary);transition:var(--transition);flex:1;padding:9px 14px;font-size:14px}.comment-input:focus{border-color:var(--primary);background:#fff;outline:none;box-shadow:0 0 0 3px #4361ee14}.comment-input::placeholder{color:var(--text-muted)}.comment-submit{border-radius:var(--radius-full);flex-shrink:0;padding:9px 16px;font-size:16px}.comment-login-hint{color:var(--text-muted);text-align:center;padding:6px;font-size:13px}.comment-login-hint a{color:var(--primary);font-weight:600}.comment-error{color:var(--danger);margin-top:6px;font-size:12px}.post-card{margin-bottom:14px;padding:18px;transition:box-shadow .2s;animation:.3s fadeIn}.post-card:hover{box-shadow:var(--shadow-md)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.post-card-header{justify-content:space-between;align-items:flex-start;margin-bottom:14px;display:flex}.post-card-author{align-items:flex-start;gap:12px;display:flex}.post-card-author-info{flex-direction:column;gap:1px;display:flex}.post-card-username{color:var(--text-primary);font-size:15px;font-weight:700}.post-card-handle{color:var(--primary);font-size:13px;font-weight:500}.post-card-date{color:var(--text-muted);margin-top:2px;font-size:12px}.post-card-delete{cursor:pointer;opacity:.5;border-radius:var(--radius-sm);background:0 0;border:none;padding:4px;font-size:16px;transition:opacity .2s}.post-card-delete:hover{opacity:1;background:#fef2f2}.post-card-text{color:var(--text-primary);white-space:pre-wrap;word-break:break-word;margin-bottom:12px;font-size:15px;line-height:1.65}.post-card-image-wrap{border-radius:var(--radius-sm);max-height:400px;margin-bottom:14px;overflow:hidden}.post-card-image{object-fit:cover;width:100%;max-height:400px;transition:transform .3s;display:block}.post-card-image-wrap:hover .post-card-image{transform:scale(1.015)}.post-card-actions{border-top:1px solid var(--border);gap:8px;padding-top:12px;display:flex}.post-card-action-btn{border-radius:var(--radius-full);background:var(--surface);color:var(--text-secondary);border:1.5px solid var(--border);cursor:pointer;transition:var(--transition);-webkit-user-select:none;user-select:none;align-items:center;gap:6px;padding:7px 14px;font-size:14px;font-weight:600;display:flex}.post-card-action-btn:hover:not(:disabled){background:var(--primary-light);color:var(--primary);border-color:var(--primary)}.post-card-action-btn.liked{background:var(--accent-light);color:var(--accent);border-color:var(--accent)}.post-card-action-btn.active{background:var(--primary-light);color:var(--primary);border-color:var(--primary)}.post-card-action-btn:disabled{cursor:default;opacity:.6}.post-card-action-icon{font-size:16px;line-height:1}.post-card-like-group{align-items:center;gap:8px;display:flex}.post-card-likes-count{color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;padding:4px 8px;font-size:14px;font-weight:600;transition:background .2s,color .2s}.post-card-likes-count:hover:not(:disabled){background:var(--surface);color:var(--text-primary)}.post-card-likes-count:disabled{cursor:default;opacity:.7}.modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#00000080;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg);border-radius:var(--radius-lg);width:90%;max-width:400px;max-height:80vh;box-shadow:var(--shadow-lg);flex-direction:column;animation:.3s modalSlideIn;display:flex}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(20px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.modal-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.modal-header h3{color:var(--text-primary);margin:0;font-size:18px}.modal-close{cursor:pointer;color:var(--text-muted);background:0 0;border:none;font-size:18px;transition:color .2s}.modal-close:hover{color:var(--text-primary)}.modal-body{flex:1;padding:16px 20px;overflow-y:auto}.modal-spinner{margin:20px auto}.likes-empty{text-align:center;color:var(--text-muted);padding:20px 0}.likes-user-item{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:10px 0;display:flex}.likes-user-item:last-child{border-bottom:none}.likes-user-item span{color:var(--text-primary);font-weight:600}.feed-page{padding:24px 0 60px}.feed-guest-banner{background:linear-gradient(135deg,#ebedfd,#fde8f2);border:none;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;padding:20px;display:flex}.feed-guest-banner p{color:var(--text-primary);font-size:15px}.feed-guest-actions{gap:10px;display:flex}.feed-tabs{scrollbar-width:none;gap:8px;margin-bottom:16px;padding-bottom:4px;display:flex;overflow-x:auto}.feed-tabs::-webkit-scrollbar{display:none}.feed-tab{white-space:nowrap;border-radius:var(--radius-full);border:1.5px solid var(--border);color:var(--text-secondary);cursor:pointer;transition:var(--transition);background:#fff;padding:8px 18px;font-size:14px;font-weight:600}.feed-tab:hover{border-color:var(--primary);color:var(--primary)}.feed-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.feed-error{text-align:center;color:var(--danger);padding:24px;font-size:15px}.feed-empty{text-align:center;padding:60px 24px}.feed-empty-icon{margin-bottom:12px;font-size:48px}.feed-empty p{color:var(--text-secondary);font-size:16px}.feed-load-more{justify-content:center;padding:20px 0;display:flex}@media (width<=600px){.feed-guest-banner{flex-direction:column;align-items:flex-start}}.auth-page{background:linear-gradient(135deg,#0f0c29,#302b63,#24243e);justify-content:center;align-items:center;min-height:100vh;padding:24px 16px;display:flex}.auth-card{border-radius:20px;width:100%;max-width:420px;padding:40px 36px;animation:.4s fadeUp;box-shadow:0 20px 60px #0006}@keyframes fadeUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}.auth-logo{text-align:center;margin-bottom:28px}.auth-logo-icon{margin-bottom:8px;font-size:40px}.auth-brand{background:linear-gradient(90deg,#4361ee,#f72585);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:26px;font-weight:800}.auth-tagline{color:var(--text-muted);margin-top:2px;font-size:13px}.auth-form{margin-top:8px}.auth-title{margin-bottom:2px;font-size:20px;font-weight:700}.auth-subtitle{color:var(--text-secondary);margin-bottom:20px;font-size:14px}.form-error-box{color:var(--danger);border-radius:var(--radius-sm);background:#fef2f2;border:1px solid #fecaca;margin-bottom:16px;padding:10px 14px;font-size:13px}.auth-submit{border-radius:var(--radius-sm);justify-content:center;width:100%;margin-top:4px;padding:13px;font-size:15px}.auth-switch{text-align:center;color:var(--text-secondary);margin-top:20px;font-size:14px}.auth-link{color:var(--primary);font-weight:600}.auth-link:hover{text-decoration:underline}