@import"https://cdn.jsdelivr.net/npm/@tabler/icons-webfont@latest/tabler-icons.min.css";@import"https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600;700&family=DM+Serif+Display:ital@0;1&display=swap";@import"https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700&display=swap";.navbar{display:flex;align-items:center;justify-content:space-between;background:#fff;padding:0 24px;height:52px;position:sticky;top:0;z-index:100;border-bottom:1px solid #e9e9e9;box-shadow:0 1px 2px #00000005}.navbar__left{display:flex;align-items:center;gap:8px}.navbar__logo{font-size:28px;font-weight:600;color:#0a66c2;cursor:pointer;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;letter-spacing:-.5px}.navbar__search{display:flex;align-items:center;background:#eef3f8;border:none;border-radius:4px;padding:6px 12px;gap:8px;margin-left:8px}.navbar__search-icon{font-size:16px;color:#666}.navbar__search-input{background:transparent;border:none;outline:none;color:#1a1a1a;font-size:14px;width:150px}.navbar__search-input::placeholder{color:#8a8a8a}.navbar__search-input:focus{background:transparent}.navbar__right{display:flex;align-items:center;gap:8px}.navbar__items{display:flex;align-items:center;gap:4px}.navbar__item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:6px 12px;border-radius:8px;cursor:pointer;min-width:80px;height:52px;transition:all .2s ease;position:relative}.navbar__item:hover{background:#f0f2f4}.navbar__item-icon{font-size:20px;color:#666;line-height:1;transition:color .2s ease}.navbar__item-label{font-size:12px;color:#666;white-space:nowrap;font-weight:400;transition:color .2s ease}.navbar__item.active .navbar__item-icon{color:#0a66c2}.navbar__item.active .navbar__item-label{color:#0a66c2;font-weight:500}.navbar__item.active:after{content:"";position:absolute;bottom:-1px;left:0;width:100%;height:2px;background:#0a66c2;border-radius:2px 2px 0 0}.navbar__item.study-rooms-highlight{background:transparent;border-radius:8px}.navbar__item.study-rooms-highlight.active{background:#e8f3ff}.navbar__item.study-rooms-highlight.active .navbar__item-icon,.navbar__item.study-rooms-highlight.active .navbar__item-label{color:#004182}.navbar__profile{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 16px;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition-smooth);position:relative}.navbar__profile:hover{background:var(--color-bg-hover)}.navbar__profile-badge{width:24px;height:24px;border-radius:50%;background:var(--color-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);overflow:hidden}.navbar__profile-image{width:100%;height:100%;object-fit:cover}.navbar__profile-label{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.navbar__lang-select{background:transparent;border:1px solid #c7c7c7;border-radius:4px;color:#1a1a1a;font-size:13px;padding:6px 8px;cursor:pointer;outline:none;transition:border-color .2s ease}.navbar__lang-select:hover{border-color:#0a66c2}.navbar__premium{background:#fff;border:1px solid #c7c7c7;color:#1a1a1a;font-size:13px;font-weight:600;padding:7px 16px;border-radius:24px;cursor:pointer;white-space:nowrap;margin-left:8px;transition:all .2s ease}.navbar__premium:hover{background:#f5f5f5;border-color:#0a66c2;color:#0a66c2}.add-experience{width:100%}.add-experience__trigger{width:100%;padding:var(--space-md) var(--space-lg);background-color:var(--color-bg-white);border:1px solid var(--color-border);border-radius:var(--radius-2xl);text-align:left;font-size:var(--font-size-base);color:var(--color-text-secondary);cursor:pointer;transition:var(--transition-smooth);outline:none}.add-experience__trigger:hover{background-color:var(--color-bg-light);border-color:var(--color-primary)}.add-experience__form{background-color:var(--color-bg-white);border-radius:var(--radius-md);border:1px solid var(--color-border);padding:var(--space-xl);margin-top:var(--space-md);box-shadow:var(--shadow-md);animation:fadeInUp .3s ease-out}.add-experience__error{background-color:#ffebee;color:var(--color-error);padding:var(--space-md);border-radius:var(--radius-sm);font-size:var(--font-size-sm);margin-bottom:var(--space-lg);border:1px solid #ffcdd2;line-height:1.5}.add-experience__error div{margin-bottom:var(--space-xs)}.add-experience__error div:last-child{margin-bottom:0}.add-experience__group{margin-bottom:var(--space-lg)}.add-experience__label{display:block;margin-bottom:var(--space-sm);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.add-experience__input{width:100%;padding:var(--space-md) var(--space-lg);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--font-size-base);transition:border-color var(--transition-fast);outline:none;background-color:var(--color-bg-white);font-family:inherit}.add-experience__input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #0a66c21a}.add-experience__input::placeholder{color:var(--color-text-muted)}.add-experience__input:disabled{background-color:var(--color-bg-light);cursor:not-allowed}.add-experience__textarea{width:100%;padding:var(--space-md) var(--space-lg);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--font-size-base);min-height:120px;resize:vertical;transition:border-color var(--transition-fast);outline:none;background-color:var(--color-bg-white);font-family:inherit;line-height:1.6;position:relative}.add-experience__textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #0a66c21a}.add-experience__textarea::placeholder{color:var(--color-text-muted)}.add-experience__textarea:disabled{background-color:var(--color-bg-light);cursor:not-allowed}.add-experience__textarea-wrapper{position:relative}.add-experience__emoji-btn{position:absolute;bottom:var(--space-sm);right:var(--space-sm);background-color:var(--color-bg-white);border:1px solid var(--color-border);border-radius:50%;width:32px;height:32px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px;transition:var(--transition-fast);z-index:1}.add-experience__emoji-btn:hover{background-color:var(--color-bg-hover);transform:scale(1.1)}.add-experience__emoji-select{width:32px;height:32px;opacity:0;position:absolute;cursor:pointer}.add-experience__counter{font-size:var(--font-size-xs);color:var(--color-text-muted);text-align:right;margin-top:var(--space-xs)}.add-experience__counter.warning{color:var(--color-warning)}.add-experience__counter.limit{color:var(--color-error)}.add-experience__upload{border:2px dashed var(--color-border);border-radius:var(--radius-sm);padding:var(--space-xl);text-align:center;cursor:pointer;transition:var(--transition-smooth);background-color:var(--color-bg-elevated)}.add-experience__upload:hover{border-color:var(--color-primary);background-color:var(--color-primary-subtle)}.add-experience__upload-icon{font-size:32px;margin-bottom:var(--space-sm)}.add-experience__upload-text{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.add-experience__preview{margin-top:var(--space-lg);position:relative;border-radius:var(--radius-sm);overflow:hidden;max-height:300px;background-color:var(--color-bg-light)}.add-experience__preview-image{width:100%;max-height:300px;object-fit:cover;display:block}.add-experience__preview-video{width:100%;max-height:300px;display:block}.add-experience__preview-remove{position:absolute;top:var(--space-sm);right:var(--space-sm);background-color:#000000b3;color:#fff;border:none;border-radius:50%;width:32px;height:32px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-lg);transition:var(--transition-fast)}.add-experience__preview-remove:hover{background-color:#000000e6;transform:scale(1.1)}.add-experience__buttons{display:flex;gap:var(--space-md);justify-content:flex-end;margin-top:var(--space-xl)}.add-experience__submit{padding:var(--space-sm) var(--space-xl);background-color:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-2xl);font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);cursor:pointer;transition:var(--transition-smooth)}.add-experience__submit:hover:not(:disabled){background-color:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-primary)}.add-experience__submit:disabled{background-color:#ccc;cursor:not-allowed;transform:none}.add-experience__cancel{padding:var(--space-sm) var(--space-xl);background-color:transparent;color:var(--color-text-secondary);border:1px solid var(--color-border);border-radius:var(--radius-2xl);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);cursor:pointer;transition:var(--transition-smooth)}.add-experience__cancel:hover:not(:disabled){background-color:var(--color-bg-hover);border-color:#999}.add-experience__cancel:disabled{opacity:.6;cursor:not-allowed}@media(max-width:768px){.add-experience__form{padding:var(--space-lg);border-radius:var(--radius-sm)}.add-experience__buttons{flex-direction:column-reverse}.add-experience__submit,.add-experience__cancel{width:100%}.add-experience__upload{padding:var(--space-lg)}.add-experience__upload-icon{font-size:28px}}@media(max-width:480px){.add-experience__form{padding:var(--space-md)}.add-experience__input,.add-experience__textarea{padding:var(--space-sm) var(--space-md)}.add-experience__upload-text{font-size:var(--font-size-xs)}}:root{--color-primary: #1a73e8;--color-primary-hover: #1557b0;--color-primary-light: #e8f0fe;--color-accent: #e91e8c;--color-bg: #f0f2f5;--color-surface: #ffffff;--color-surface-hover: #f7f8fa;--color-border: #e4e6eb;--color-border-light: #f0f2f5;--color-text-primary: #050505;--color-text-secondary: #65676b;--color-text-muted: #8a8d91;--color-like: #1a73e8;--color-love: #f33e58;--color-haha: #f7b125;--color-wow: #f7b125;--color-sad: #f7b125;--color-angry: #e74c3c;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-xl: 24px;--radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 16px rgba(0,0,0,.1), 0 2px 6px rgba(0,0,0,.06);--shadow-lg: 0 12px 40px rgba(0,0,0,.14), 0 4px 12px rgba(0,0,0,.08);--shadow-reaction: 0 8px 32px rgba(0,0,0,.18), 0 2px 8px rgba(0,0,0,.1);--space-xs: 4px;--space-sm: 8px;--space-md: 12px;--space-lg: 16px;--space-xl: 20px;--space-2xl: 24px;--font-main: "DM Sans", -apple-system, BlinkMacSystemFont, sans-serif;--font-display: "DM Serif Display", Georgia, serif;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-md: .25s cubic-bezier(.4, 0, .2, 1);--transition-bounce: .35s cubic-bezier(.34, 1.56, .64, 1)}.post-card{font-family:var(--font-main);background:var(--color-surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);margin-bottom:var(--space-lg);overflow:visible;transition:box-shadow var(--transition-md);position:relative}.post-card:hover{box-shadow:var(--shadow-md)}.post-card__header{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-lg) var(--space-xl);padding-bottom:var(--space-sm)}.post-card__avatar{width:44px;height:44px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-primary),var(--color-accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;font-weight:700;font-family:var(--font-main);flex-shrink:0;overflow:hidden;box-shadow:0 0 0 2px var(--color-primary-light);letter-spacing:.5px}.post-card__avatar-image{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-full)}.post-card__info{flex:1;min-width:0}.post-card__author-name{font-size:15px;font-weight:700;color:var(--color-text-primary);display:flex;align-items:center;gap:var(--space-xs);line-height:1.3}.post-card__author-badge{font-size:11px;font-weight:600;color:var(--color-primary);background:var(--color-primary-light);padding:2px 8px;border-radius:var(--radius-full);letter-spacing:.3px}.post-card__meta{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--color-text-muted);margin-top:2px;font-weight:400}.post-card__time-dot{width:3px;height:3px;border-radius:50%;background:var(--color-text-muted);display:inline-block}.post-card__content{padding:var(--space-md) var(--space-xl)}.post-card__title{font-family:var(--font-display);font-size:18px;font-weight:400;color:var(--color-text-primary);margin:0 0 8px;line-height:1.4;letter-spacing:-.2px}.post-card__text{font-size:15px;color:var(--color-text-primary);line-height:1.6;margin:0;white-space:pre-wrap;word-break:break-word;font-weight:400}.post-card__shared{margin:0 var(--space-xl) var(--space-md);border:1.5px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;background:var(--color-surface-hover);transition:border-color var(--transition-fast)}.post-card__shared:hover{border-color:var(--color-primary)}.post-card__shared-header{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);padding-bottom:var(--space-xs)}.post-card__shared-avatar{width:34px;height:34px;border-radius:var(--radius-full);background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;font-weight:700;overflow:hidden;flex-shrink:0}.post-card__shared-info{flex:1;min-width:0}.post-card__shared-author{font-size:13px;font-weight:700;color:var(--color-text-primary)}.post-card__shared-time{font-size:11px;color:var(--color-text-muted);margin-top:1px}.post-card__shared-content{padding:var(--space-sm) var(--space-lg) var(--space-md)}.post-card__shared-title{font-size:14px;font-weight:700;color:var(--color-text-primary);margin-bottom:4px}.post-card__shared-text{font-size:13px;color:var(--color-text-secondary);line-height:1.5}.post-card__media{position:relative;overflow:hidden;cursor:pointer;background:#000;max-height:520px}.post-card__media-image{width:100%;max-height:520px;object-fit:cover;display:block;transition:transform var(--transition-md),filter var(--transition-md)}.post-card__media:hover .post-card__media-image{transform:scale(1.015);filter:brightness(.92)}.post-card__media-overlay{position:absolute;bottom:0;left:0;right:0;padding:var(--space-xl) var(--space-lg) var(--space-lg);background:linear-gradient(transparent,#00000080);color:#fff;font-size:13px;font-weight:500;opacity:0;transition:opacity var(--transition-md);display:flex;align-items:flex-end;gap:6px}.post-card__media:hover .post-card__media-overlay{opacity:1}.post-card__stats{display:flex;align-items:center;justify-content:space-between;padding:var(--space-sm) var(--space-xl);border-bottom:1px solid var(--color-border-light)}.post-card__likes{display:flex;align-items:center;gap:4px;cursor:pointer}.post-card__likes-icon{display:flex;flex-direction:row;align-items:center;gap:2px;font-size:16px}.post-card__likes-count{font-size:14px;color:#65676b}.post-card__comments-count{font-size:13px;font-weight:500;color:var(--color-text-secondary);cursor:pointer;transition:color var(--transition-fast)}.post-card__comments-count:hover{color:var(--color-primary);text-decoration:underline}.post-card__actions{display:flex;align-items:center;justify-content:space-around;padding:var(--space-xs) var(--space-sm)}.post-card__action{display:flex;align-items:center;gap:6px;padding:var(--space-sm) var(--space-md);border:none;background:transparent;border-radius:var(--radius-md);cursor:pointer;font-family:var(--font-main);font-size:13px;font-weight:600;color:var(--color-text-secondary);transition:background var(--transition-fast),color var(--transition-fast);flex:1;justify-content:center;white-space:nowrap}.post-card__action:hover{background:var(--color-surface-hover);color:var(--color-text-primary)}.post-card__action--active{color:var(--color-primary)}.post-card__action-icon{font-size:16px;line-height:1}.reaction-container{position:relative;flex:1;display:flex;justify-content:center}.reaction-trigger{display:flex;align-items:center;gap:6px;padding:var(--space-sm) var(--space-md);border:none;background:transparent;border-radius:var(--radius-md);cursor:pointer;font-family:var(--font-main);font-size:13px;font-weight:600;color:var(--color-text-secondary);transition:background var(--transition-fast),color var(--transition-fast),transform var(--transition-fast);width:100%;justify-content:center;white-space:nowrap}.reaction-trigger:hover{background:var(--color-surface-hover);color:var(--color-text-primary)}.reaction-trigger.active{color:var(--color-like)}.reaction-trigger:active{transform:scale(.95)}.reaction-menu{position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%) translateY(10px) scale(.85);background:var(--color-surface);border-radius:var(--radius-full);padding:var(--space-sm) var(--space-md);display:flex;align-items:center;gap:4px;box-shadow:var(--shadow-reaction);border:1px solid var(--color-border);opacity:0;pointer-events:none;transition:opacity var(--transition-md),transform var(--transition-bounce);z-index:100;white-space:nowrap}.reaction-menu.show{opacity:1;pointer-events:all;transform:translate(-50%) translateY(0) scale(1)}.reaction-option{position:relative;background:none;border:none;cursor:pointer;font-size:26px;line-height:1;padding:4px 6px;border-radius:var(--radius-full);transition:transform var(--transition-bounce),filter var(--transition-fast);filter:grayscale(0)}.reaction-option:hover{transform:scale(1.4) translateY(-4px);filter:drop-shadow(0 4px 8px rgba(0,0,0,.2))}.reaction-option.selected{transform:scale(1.15)}.reaction-option-tooltip{position:absolute;bottom:calc(100% + 6px);left:50%;transform:translate(-50%);background:#000000d1;color:#fff;font-family:var(--font-main);font-size:11px;font-weight:600;padding:3px 8px;border-radius:var(--radius-full);white-space:nowrap;opacity:0;pointer-events:none;transition:opacity var(--transition-fast);letter-spacing:.3px}.reaction-option:hover .reaction-option-tooltip{opacity:1}.comments-section{padding:var(--space-sm) var(--space-lg) var(--space-md);background:var(--color-surface-hover);border-top:1px solid var(--color-border-light);border-radius:0 0 var(--radius-xl) var(--radius-xl)}.comments-input-container{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-md);flex-wrap:wrap}.reply-indicator{width:100%;order:-1;display:flex;align-items:center;justify-content:space-between;padding:5px 12px;margin-bottom:0;background:var(--color-primary-light);border-left:3px solid var(--color-primary);border-radius:0 8px 8px 0;font-size:12px;color:var(--color-text-secondary)}.comments-avatar{width:36px;height:36px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-primary),var(--color-accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:700;flex-shrink:0;overflow:hidden}.comments-input{flex:1;background:var(--color-surface);border:1.5px solid var(--color-border);border-radius:var(--radius-full);padding:10px var(--space-lg);font-family:var(--font-main);font-size:14px;color:var(--color-text-primary);outline:none;transition:border-color var(--transition-fast),box-shadow var(--transition-fast);min-width:0}.comments-input::placeholder{color:var(--color-text-muted)}.comments-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.comments-submit-btn{padding:8px var(--space-md);background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-full);font-family:var(--font-main);font-size:13px;font-weight:600;cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast),opacity var(--transition-fast);white-space:nowrap;flex-shrink:0}.comments-submit-btn.active:hover{background:var(--color-primary-hover);transform:scale(1.04)}.comments-submit-btn.disabled{opacity:.4;cursor:not-allowed}.comments-cancel-btn{width:30px;height:30px;border-radius:var(--radius-full);border:none;background:var(--color-border);color:var(--color-text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;transition:background var(--transition-fast),color var(--transition-fast);flex-shrink:0}.comments-cancel-btn:hover{background:#fdd;color:#c0392b}.comments-list{display:flex;flex-direction:column;gap:var(--space-sm)}.comment-item{display:flex;gap:var(--space-sm);align-items:flex-start;animation:fadeSlideIn .2s ease-out}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.comment-content{flex:1;background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border-light);min-width:0}.comment-author{font-size:13px;font-weight:700;color:var(--color-text-primary);display:flex;align-items:center;gap:6px;margin-bottom:2px}.comment-author-badge{font-size:10px;font-weight:600;color:var(--color-primary);background:var(--color-primary-light);padding:1px 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var(--transition-fast)}.comments-show-more-btn:hover{background:var(--color-border);color:var(--color-text-primary)}.send-modal-overlay{position:fixed;inset:0;background:#0000008c;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--space-lg);animation:overlayIn .2s ease-out}@keyframes overlayIn{0%{opacity:0}to{opacity:1}}.send-modal{background:var(--color-surface);border-radius:var(--radius-xl);width:100%;max-width:460px;box-shadow:var(--shadow-lg);overflow:hidden;animation:modalIn .3s cubic-bezier(.34,1.56,.64,1)}@keyframes modalIn{0%{opacity:0;transform:scale(.88) translateY(20px)}to{opacity:1;transform:scale(1) translateY(0)}}.send-modal__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-lg) var(--space-xl);border-bottom:1px solid 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rgba(255,255,255,.08);box-shadow:0 40px 90px #000000a6,0 0 90px #6366f114,inset 0 1px #ffffff0f;overflow:hidden}.card-back{transform:rotateY(180deg)}.card-front:before,.card-back:before{content:"";position:absolute;width:240px;height:240px;top:-80px;left:-80px;background:radial-gradient(circle,rgba(99,102,241,.18),transparent 70%);animation:float 7s ease-in-out infinite}.card-front:after,.card-back:after{content:"";position:absolute;width:200px;height:200px;bottom:-80px;right:-80px;background:radial-gradient(circle,rgba(96,165,250,.12),transparent 70%);animation:float 9s ease-in-out infinite reverse}@keyframes float{0%,to{transform:translateY(0) scale(1);opacity:.8}50%{transform:translateY(-10px) scale(1.15);opacity:.5}}.card-front form,.card-back form{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:center;height:100%}h2{color:#fff;font-size:20px;font-weight:700;text-align:center;margin-bottom:28px}.auth-input{width:100%;padding:13px 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