:root{--primary:#667eea;--secondary:#764ba2;--premium:#f59e0b;--success:#10b981;--dark:#1f2937;--gray:#6b7280;--light:#f9fafb;--border:#e5e7eb;--white:#ffffff;--grad:linear-gradient(135deg,#667eea,#764ba2);--radius:14px;--shadow:0 4px 20px rgba(0,0,0,.09);--shadow-lg:0 10px 40px rgba(0,0,0,.15)}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--light);color:var(--dark);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}.vclass-topbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:var(--grad);display:flex;align-items:center;gap:16px;padding:0 24px;height:70px;box-shadow:0 4px 20px rgb(102 126 234 / .3);backdrop-filter:blur(10px)}.topbar-logo{color:#fff;font-weight:800;font-size:24px;flex:1;display:flex;align-items:center;gap:8px;transition:transform .2s}.topbar-logo:hover{transform:scale(1.05)}.topbar-nav{display:flex;align-items:center;gap:8px;transition:all .3s}.topbar-nav a{color:rgb(255 255 255 / .95);padding:10px 16px;border-radius:10px;font-size:15px;font-weight:600;transition:all .2s;white-space:nowrap;display:flex;align-items:center;gap:6px}.topbar-nav a:hover{background:rgb(255 255 255 / .2);transform:translateY(-1px)}.topbar-nav .nav-upgrade{background:var(--premium);color:#fff!important;font-weight:700;box-shadow:0 4px 12px rgb(245 158 11 / .3)}.topbar-nav .nav-upgrade:hover{box-shadow:0 6px 16px rgb(245 158 11 / .4);transform:translateY(-2px)}.hamburger{display:none;flex-direction:column;justify-content:center;gap:6px;background:none;border:none;cursor:pointer;padding:8px;width:40px;height:40px;border-radius:8px;transition:background .2s}.hamburger:hover{background:rgb(255 255 255 / .15)}.hamburger span{display:block;width:26px;height:3px;background:#fff;border-radius:3px;transition:all .3s cubic-bezier(.68,-.55,.265,1.55)}.hamburger.open span:nth-child(1){transform:translateY(9px) rotate(45deg)}.hamburger.open span:nth-child(2){opacity:0;transform:scaleX(0)}.hamburger.open span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}.menu-overlay{position:fixed;inset:0;background:rgb(0 0 0 / .6);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:all .3s ease-out;z-index:998}.menu-overlay.open{opacity:1;visibility:visible}@media(max-width:1024px){.hamburger{display:flex}.topbar-nav{display:none;flex-direction:column;align-items:stretch;position:fixed;top:70px;right:0;width:340px;max-width:85vw;height:calc(100vh - 70px);background:var(--white);box-shadow:-4px 0 20px rgb(0 0 0 / .2);padding:24px;overflow-y:auto;transform:translateX(100%);transition:transform .4s cubic-bezier(.68,-.55,.265,1.55)}.topbar-nav.open{display:flex;transform:translateX(0)}.topbar-nav a{width:100%;color:var(--dark)!important;padding:16px 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60px)}}body{padding-top:70px}@media(max-width:768px){body{padding-top:60px}}.menu-user-info{padding:24px;margin-bottom:24px;background:var(--grad);border-radius:var(--radius);color:#fff;text-align:center;box-shadow:var(--shadow)}.menu-user-avatar{width:70px;height:70px;border-radius:50%;margin:0 auto 12px;border:4px solid rgb(255 255 255 / .3);object-fit:cover}.menu-user-name{font-weight:700;font-size:19px;margin-bottom:6px}.menu-user-plan{font-size:14px;opacity:.95;padding:4px 12px;background:rgb(255 255 255 / .2);border-radius:20px;display:inline-block}.vclass-dashboard{max-width:1200px;margin:0 auto;padding-bottom:60px}.dashboard-body{padding:30px 24px}.welcome-banner{background:var(--grad);color:#fff;border-radius:var(--radius);padding:32px;display:flex;align-items:center;gap:20px;margin-bottom:36px;box-shadow:var(--shadow-lg);flex-wrap:wrap;position:relative;overflow:hidden}.welcome-banner::before{content:'';position:absolute;top:-50%;right:-10%;width:400px;height:400px;background:rgb(255 255 255 / .1);border-radius:50%}.welcome-banner h1{font-size:28px;margin-bottom:8px;position:relative;z-index:1}.welcome-text{flex:1;position:relative;z-index:1}.user-avatar{width:80px;height:80px;border-radius:50%;border:4px solid rgb(255 255 255 / .3);flex-shrink:0;object-fit:cover;box-shadow:0 8px 16px rgb(0 0 0 / .2)}.user-initials{background:rgb(255 255 255 / .25);display:flex;align-items:center;justify-content:center;font-size:32px;font-weight:700;color:#fff}.plan-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:24px;font-size:14px;font-weight:700}.plan-chip.premium{background:rgb(245 158 11 / 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p{font-size:13px;color:var(--gray);margin:0}.btn-upgrade-side{display:block;text-align:center;margin-top:20px;padding:14px;background:var(--premium);color:#fff!important;border-radius:10px;font-weight:700;transition:all .2s}.btn-upgrade-side:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgb(245 158 11 / .4)}.plan-info-box{display:flex;gap:16px;align-items:center;background:#f0fdf4;border:2px solid #bbf7d0;border-radius:12px;padding:18px;margin:24px 0}.plan-info-icon{font-size:36px}.plan-info-box strong{display:block;margin-bottom:4px}.plan-info-box p{font-size:13px;color:var(--gray);margin:0}@media(max-width:900px){.vclass-enrollment{grid-template-columns:1fr;gap:24px}.enrollment-side{position:static}}.form-group{margin-bottom:24px}.form-group label{display:block;margin-bottom:10px;font-weight:700;font-size:15px;color:var(--dark)}.form-group input,.form-group textarea,.form-group select{width:100%;padding:16px;border:2px solid 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8px;min-width:50px}.cd-lbl{font-size:9px;margin-top:2px}.cd-sep{font-size:24px;margin-top:4px}.wr-note{font-size:11px;margin-top:12px}.btn-back{margin-top:16px;padding:8px 16px;font-size:13px}}@supports (padding:max(0px)){.waiting-room{padding-top:max(20px, env(safe-area-inset-top));padding-bottom:max(20px, env(safe-area-inset-bottom));padding-left:max(16px, env(safe-area-inset-left));padding-right:max(16px, env(safe-area-inset-right))}}@media (prefers-color-scheme:dark){.cd-num{background:rgb(255 255 255 / .2)}}@media print{.waiting-room{display:none!important}}@media (prefers-reduced-motion:reduce){.wr-icon{animation:none!important}*{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important}}@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.wr-content{animation:fadeInUp 0.6s ease-out}.countdown{animation:fadeInUp 0.8s ease-out 0.2s both}@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}.cd-num{animation:pulse 1s ease-in-out infinite}.vclass-profile{max-width:1200px;margin:40px auto;padding:0 24px}.vclass-profile h1{margin-bottom:28px;font-size:32px}.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.profile-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px}.profile-card h2{font-size:20px;font-weight:800;margin-bottom:24px;padding-bottom:16px;border-bottom:3px solid var(--border);color:var(--dark)}.avatar-zone{text-align:center;margin-bottom:32px}.avatar-lg{width:120px;height:120px;border-radius:50%;margin:0 auto 16px;border:5px solid var(--border);object-fit:cover;box-shadow:0 8px 24px rgb(0 0 0 / .1)}.avatar-initial{background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:48px;font-weight:700;color:#fff}.btn-sm{padding:10px 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.2s}.cohort-tile:hover{border-color:var(--primary);box-shadow:var(--shadow)}.cohort-tile.enrolled{background:linear-gradient(135deg,#f0fdf4,#ecfdf5);border-color:var(--success)}.cohort-cb{width:20px;height:20px;cursor:pointer}.cohort-tile-info{flex:1}.cohort-tile-info strong{display:block;font-size:15px;margin-bottom:4px}.cohort-tile-info small{font-size:12px;color:var(--gray)}.cohort-status{font-size:13px;font-weight:600;color:var(--gray)}.cohort-tile.enrolled .cohort-status{color:var(--success)}.upgrade-block{text-align:center;padding:40px 20px;background:var(--light);border-radius:var(--radius);border:2px dashed var(--border)}@media(max-width:768px){.profile-grid{grid-template-columns:1fr}.cohorts-grid{grid-template-columns:1fr}}.upgrade-page{max-width:1200px;margin:40px auto;padding:0 24px}.upgrade-hero{text-align:center;margin-bottom:48px}.upgrade-hero h1{font-size:42px;font-weight:800;margin-bottom:12px;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:#fff0}.upgrade-hero p{font-size:18px;color:var(--gray)}.plan-compare{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;margin-bottom:48px;align-items:stretch}.compare-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:36px;text-align:center;position:relative}.compare-card.new-plan{border:3px solid var(--premium);box-shadow:0 8px 32px rgb(245 158 11 / .2)}.compare-label{position:absolute;top:16px;right:16px;padding:6px 14px;border-radius:20px;font-size:12px;font-weight:700}.compare-label.best{background:var(--premium);color:#fff}.compare-price{font-size:48px;font-weight:800;margin:16px 0}.compare-price.premium{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:#fff0}.compare-price span{font-size:24px;font-weight:600}.compare-once{font-size:14px;color:var(--gray);margin-bottom:24px}.compare-card ul{list-style:none;text-align:left}.compare-card li{padding:12px 0;border-bottom:1px solid var(--border);font-size:15px}.compare-card li:last-child{border:none}.compare-card li.no{color:var(--gray);opacity:.5}.compare-arrow{font-size:48px;color:var(--primary);display:flex;align-items:center;font-weight:700}.payment-box{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:40px;margin-bottom:40px}.payment-box h3{font-size:24px;font-weight:800;margin-bottom:24px;text-align:center}.payment-logos{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:32px}.payment-logos span{padding:8px 16px;background:var(--light);border-radius:8px;font-size:14px;font-weight:600}.order-summary{border:2px solid var(--border);border-radius:12px;padding:24px;margin-bottom:32px}.order-line{display:flex;justify-content:space-between;padding:12px 0;font-size:16px}.order-line.total{border-top:2px solid var(--border);margin-top:12px;padding-top:20px;font-size:20px;font-weight:800}.btn-pay{width:100%;padding:20px;background:var(--grad);color:#fff!important;border:none;border-radius:14px;font-size:18px;font-weight:800;cursor:pointer;transition:all .2s;box-shadow:0 6px 24px rgb(102 126 234 / .3);text-decoration:none;display:block;text-align:center}.btn-pay:hover{transform:translateY(-3px);box-shadow:0 10px 36px rgb(102 126 234 / .4)}.pay-note{text-align:center;font-size:13px;color:var(--gray);margin-top:16px}.upgrade-guarantees{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;text-align:center;font-size:14px;font-weight:600;color:var(--gray)}@media(max-width:900px){.plan-compare{grid-template-columns:1fr;gap:32px}.compare-arrow{transform:rotate(90deg);font-size:36px;justify-content:center}.upgrade-guarantees{grid-template-columns:1fr 1fr;gap:12px}}@media(max-width:640px){.payment-box{padding:28px 20px}.upgrade-guarantees{grid-template-columns:1fr}}.vclass-admin-widget{max-width:1200px;margin:40px auto;padding:0 24px}.vclass-admin-widget h2{font-size:28px;font-weight:800;margin-bottom:30px;color:var(--dark)}.widget-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:40px}.widget-stat-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;text-align:center;transition:all .2s}.widget-stat-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.ws-icon{font-size:48px;margin-bottom:12px}.ws-num{font-size:42px;font-weight:800;color:var(--dark);margin-bottom:8px}.ws-lbl{font-size:15px;color:var(--gray);font-weight:600}.widget-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.widget-links a{padding:16px 24px;background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);font-weight:700;font-size:15px;color:var(--dark);transition:all .2s;text-align:center;border:2px solid #fff0}.widget-links a:hover{border-color:var(--primary);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.vclass-notice{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;margin:40px auto;max-width:800px;text-align:center}.vclass-notice.success{border-left:4px solid var(--success)}.vclass-splash{min-height:70vh;display:flex;align-items:center;justify-content:center;background:var(--grad);padding:40px 20px}.splash-content{text-align:center;color:#fff;max-width:560px}.splash-logo{font-size:90px;margin-bottom:20px;animation:float 3s ease-in-out infinite}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}.splash-content h1{font-size:44px;margin-bottom:12px;font-weight:800}.splash-content p{font-size:20px;opacity:.9;margin-bottom:36px}.splash-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.btn-splash-primary{padding:16px 32px;background:#fff;color:var(--primary);border-radius:12px;font-weight:700;font-size:17px;transition:all .2s}.btn-splash-primary:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgb(0 0 0 / .2)}.btn-splash-secondary{padding:16px 32px;background:rgb(255 255 255 / .2);color:#fff;border-radius:12px;font-weight:600;font-size:17px;border:2px solid rgb(255 255 255 / .4);transition:all .2s}.btn-splash-secondary:hover{background:rgb(255 255 255 / .3);transform:translateY(-3px)}@supports(padding:max(0px)){.vclass-topbar{padding-left:max(24px, env(safe-area-inset-left));padding-right:max(24px, env(safe-area-inset-right))}}.session-row{position:relative}.session-organizer{display:flex;align-items:center;gap:12px;margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}.organizer-avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;border:2px solid var(--border);flex-shrink:0}.organizer-avatar-placeholder{width:40px;height:40px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;flex-shrink:0;border:2px solid var(--border)}.organizer-info{flex:1;min-width:0}.organizer-label{font-size:11px;color:var(--gray);text-transform:uppercase;letter-spacing:.5px;margin-bottom:2px}.organizer-name{font-size:14px;font-weight:600;color:var(--dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sessions-pagination{display:flex;justify-content:center;align-items:center;gap:12px;margin-top:32px;padding-top:24px;border-top:2px solid var(--border)}.pagination-info{font-size:14px;color:var(--gray);font-weight:600}.pagination-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:var(--white);border:2px solid var(--border);border-radius:10px;font-weight:600;font-size:14px;color:var(--dark);cursor:pointer;transition:all .2s}.pagination-btn:hover{border-color:var(--primary);background:var(--light);transform:translateY(-2px)}.pagination-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.pagination-btn:disabled:hover{border-color:var(--border);background:var(--white)}.pagination-numbers{display:flex;gap:8px}.page-number{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-weight:600;font-size:14px;cursor:pointer;transition:all .2s;border:2px solid #fff0}.page-number:hover{background:var(--light)}.page-number.active{background:var(--grad);color:#fff;border-color:var(--primary)}@media (max-width:768px){.sessions-table{display:flex;flex-direction:row;gap:16px;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;padding-bottom:20px;margin:0 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.3s;cursor:pointer}.carousel-dot.active{background:var(--primary);width:24px;border-radius:4px}.sessions-pagination{display:none}}@media (min-width:769px) and (max-width:1024px){.sessions-table{display:flex;flex-direction:row;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding-bottom:20px}.session-row{flex:0 0 45%;max-width:45%;scroll-snap-align:start}}@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}.session-row{animation:slideIn 0.4s ease-out}@media (max-width:768px){.session-row{transition:transform 0.3s,opacity 0.3s}.session-row:not(.in-view){opacity:.6;transform:scale(.95)}}.sessions-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.sessions-count{font-size:14px;color:var(--gray);font-weight:600;padding:6px 14px;background:var(--light);border-radius:20px}.sessions-loading{text-align:center;padding:60px 20px}.loading-spinner{width:40px;height:40px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 0.8s linear infinite;margin:0 auto 16px}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{color:var(--gray);font-size:14px}@media (max-width:768px){.session-row:active{transform:scale(.98);transition:transform 0.1s}.organizer-avatar,.organizer-avatar-placeholder{width:36px;height:36px}.organizer-name{font-size:13px}.session-meta{font-size:13px}}.session-row:focus-within{outline:3px solid var(--primary);outline-offset:2px}.pagination-btn:focus,.page-number:focus{outline:2px solid var(--primary);outline-offset:2px}@media (prefers-reduced-motion:reduce){.sessions-table,.session-row,.pagination-btn,.carousel-dot{animation:none!important;transition:none!important}}.chat-locked{min-height:60vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:16px;padding:60px 20px;margin:40px 0}.chat-locked-content{text-align:center;color:#fff;max-width:500px}.lock-icon{font-size:80px;margin-bottom:24px;animation:pulse 2s infinite}@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}.chat-locked h2{font-size:32px;font-weight:800;margin-bottom:16px}.chat-locked p{font-size:18px;opacity:.95;margin-bottom:12px}.btn-upgrade{display:inline-block;margin-top:28px;padding:16px 32px;background:#f59e0b;color:#fff!important;border-radius:12px;font-weight:700;font-size:18px;text-decoration:none;box-shadow:0 8px 24px rgb(245 158 11 / .4);transition:all 0.2s}.btn-upgrade:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgb(245 158 11 / .5)}.vclass-chat-container{display:grid;grid-template-columns:300px 1fr;height:80vh;background:#fff;border-radius:16px;box-shadow:0 8px 32px rgb(0 0 0 / .12);overflow:hidden;margin:40px 0;max-width:100%;box-sizing:border-box}.vclass-chat-container *{box-sizing:border-box}.chat-sidebar{background:linear-gradient(180deg,#667eea,#764ba2);color:#fff;display:flex;flex-direction:column;border-right:2px solid rgb(255 255 255 / .1)}.chat-sidebar-header{padding:24px 20px;border-bottom:2px solid rgb(255 255 255 / .1)}.chat-sidebar-header h3{margin:0 0 8px;font-size:20px;font-weight:800}.chat-user-name{font-size:14px;opacity:.9;margin:0}.chat-rooms-list{flex:1;overflow-y:auto;padding:12px}.chat-room-item{display:flex;align-items:center;gap:12px;padding:14px;border-radius:12px;cursor:pointer;transition:all 0.2s;margin-bottom:8px;position:relative}.chat-room-item:hover{background:rgb(255 255 255 / .1)}.chat-room-item.active{background:rgb(255 255 255 / .2);box-shadow:0 4px 12px rgb(0 0 0 / .1)}.room-icon{font-size:28px;flex-shrink:0}.room-info{flex:1;min-width:0}.room-name{font-weight:700;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.room-code{font-size:12px;opacity:.8}.room-unread{position:absolute;top:8px;right:8px;background:#ef4444;color:#fff;font-size:11px;font-weight:700;padding:2px 6px;border-radius:10px;min-width:20px;text-align:center}.chat-main{display:flex;flex-direction:column;background:#f9fafb;max-width:100%;overflow:hidden}.chat-header{padding:20px 24px;background:#fff;border-bottom:2px solid #e5e7eb;display:flex;align-items:center;justify-content:space-between}.chat-header h2{margin:0;font-size:20px;font-weight:800;color:#1f2937}.chat-header-actions{display:flex;gap:8px}.btn-chat-action{width:36px;height:36px;border:none;background:#f3f4f6;border-radius:8px;cursor:pointer;font-size:16px;transition:all 0.2s}.btn-chat-action:hover{background:#e5e7eb;transform:scale(1.05)}.btn-chat-action.spinning{animation:spin 0.5s linear}@keyframes spin{to{transform:rotate(360deg)}}.chat-messages{flex:1;overflow-y:auto;overflow-x:hidden;padding:24px;display:flex;flex-direction:column;gap:16px;max-width:100%}.chat-loading{text-align:center;padding:40px;color:#6b7280;font-size:15px}.chat-message{display:flex;gap:12px;animation:fadeInUp 0.3s;max-width:100%}.chat-message.own{flex-direction:row-reverse}@keyframes fadeInUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-avatar{flex-shrink:0;width:40px;height:40px;border-radius:50%;overflow:hidden;border:2px solid #e5e7eb}.message-avatar img{width:100%;height:100%;object-fit:cover}.avatar-placeholder{width:100%;height:100%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px}.message-content{max-width:60%;display:flex;flex-direction:column;gap:4px;position:relative;word-wrap:break-word;overflow-wrap:break-word}.chat-message.own .message-content{align-items:flex-end}.message-author{font-size:13px;font-weight:600;color:#667eea;padding:0 12px}.message-text{background:#fff;padding:12px 16px;border-radius:16px;font-size:15px;line-height:1.5;color:#1f2937;word-wrap:break-word;word-break:break-word;overflow-wrap:break-word;max-width:100%;box-shadow:0 2px 8px rgb(0 0 0 / .06)}.chat-message.own .message-text{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.message-text a{color:inherit;text-decoration:underline;word-break:break-all}.message-file{background:#fff;padding:12px 16px;border-radius:16px;box-shadow:0 2px 8px rgb(0 0 0 / .06);max-width:100%;overflow:hidden}.message-file a{display:flex;align-items:center;gap:8px;color:#667eea;text-decoration:none;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-file a:hover{text-decoration:underline}.message-time{font-size:11px;color:#9ca3af;padding:0 12px}.btn-delete-message{position:absolute;top:8px;right:8px;background:rgb(239 68 68 / .1);border:none;border-radius:6px;padding:4px 8px;font-size:14px;cursor:pointer;opacity:0;transition:all 0.2s;z-index:10}.chat-message:hover .btn-delete-message{opacity:1}.btn-delete-message:hover{background:#ef4444;color:#fff;transform:scale(1.1)}.chat-input-area{padding:20px 24px;background:#fff;border-top:2px solid #e5e7eb;display:flex;gap:12px;align-items:flex-end}.btn-attach{width:44px;height:44px;border:none;background:#f3f4f6;border-radius:12px;cursor:pointer;font-size:20px;transition:all 0.2s;flex-shrink:0}.btn-attach:hover{background:#e5e7eb;transform:scale(1.05)}.chat-input-wrapper{flex:1;position:relative;background:#f9fafb;border:2px solid #e5e7eb;border-radius:12px;display:flex;align-items:center;padding-right:12px;transition:all 0.2s}.chat-input-wrapper:focus-within{border-color:#667eea;background:#fff}#messageInput{flex:1;border:none;background:#fff0;padding:12px 16px;font-size:15px;font-family:inherit;resize:none;max-height:120px;outline:none;line-height:1.4}.btn-emoji{width:32px;height:32px;border:none;background:#fff0;border-radius:8px;cursor:pointer;font-size:18px;transition:all 0.2s;flex-shrink:0}.btn-emoji:hover{background:#e5e7eb;transform:scale(1.1)}.btn-send{width:44px;height:44px;border:none;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;cursor:pointer;color:#fff;font-size:20px;transition:all 0.2s;flex-shrink:0;display:flex;align-items:center;justify-content:center}.btn-send:hover{transform:scale(1.05);box-shadow:0 4px 12px rgb(102 126 234 / .4)}.btn-send:active{transform:scale(.95)}.emoji-picker{position:absolute;bottom:80px;right:24px;background:#fff;border-radius:12px;box-shadow:0 8px 32px rgb(0 0 0 / .15);padding:16px;z-index:100}.emoji-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;font-size:24px}.emoji-btn{cursor:pointer;padding:8px;border-radius:8px;transition:all 0.2s;text-align:center;user-select:none}.emoji-btn:hover{background:#f3f4f6;transform:scale(1.2)}.emoji-btn:active{transform:scale(1.1)}.chat-messages::-webkit-scrollbar,.chat-rooms-list::-webkit-scrollbar{width:6px}.chat-messages::-webkit-scrollbar-track,.chat-rooms-list::-webkit-scrollbar-track{background:#fff0}.chat-messages::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:3px}.chat-rooms-list::-webkit-scrollbar-thumb{background:rgb(255 255 255 / .3);border-radius:3px}@media (max-width:768px){.vclass-chat-container{grid-template-columns:1fr;height:calc(100vh - 100px);max-width:100vw;overflow-x:hidden;margin:0;border-radius:0}.chat-sidebar{display:none}.chat-main{width:100%;max-width:100vw;overflow-x:hidden}.chat-messages{padding:16px 12px;max-width:100%;overflow-x:hidden}.chat-input-area{padding:12px 8px;gap:8px}.message-content{max-width:75%}.btn-attach,.btn-send{width:40px;height:40px;font-size:18px}.emoji-picker{bottom:70px;right:8px;left:8px;max-width:calc(100vw - 16px)}.emoji-grid{grid-template-columns:repeat(6,1fr);gap:6px;font-size:20px}}@media (max-width:400px){.vclass-chat-container{margin:0;height:100vh}.chat-messages{padding:12px 8px}.chat-input-area{padding:10px 6px;gap:6px}.message-content{max-width:80%}.btn-attach,.btn-send{width:36px;height:36px;font-size:16px}.emoji-grid{grid-template-columns:repeat(5,1fr);gap:4px;font-size:18px}.emoji-btn{padding:6px}}.dash-header{margin-bottom:32px}.dash-welcome{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.dash-welcome h1{font-size:28px;font-weight:800;margin:0 0 6px;color:#1f2937}.dash-avatar{width:72px;height:72px;border-radius:50%;object-fit:cover;flex-shrink:0;border:3px solid #e5e7eb}.dash-avatar-init{background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:800;color:#fff}.badge-plan{display:inline-flex;align-items:center;gap:6px;padding:4px 14px;border-radius:20px;font-size:13px;font-weight:700}.badge-plan.premium{background:linear-gradient(135deg,#f59e0b22,#f59e0b11);color:#92400e;border:1px solid #f59e0b44}.badge-plan.free{background:linear-gradient(135deg,#667eea22,#667eea11);color:#3730a3;border:1px solid #667eea44}.session-badge.live{background:#fee2e2;color:#991b1b;animation:pulse-badge 1.5s infinite}.session-badge.today{background:#dbeafe;color:#1e40af}.session-badge.soon{background:#f3f4f6;color:#374151}.session-badge.locked{background:#fef3c7;color:#92400e}.btn-live{background:linear-gradient(135deg,#ef4444,#dc2626)!important;box-shadow:0 4px 14px rgb(239 68 68 / .35)!important;animation:pulse-badge 2s infinite}.btn-upgrade-sm{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;font-size:13px;font-weight:700;padding:8px 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12px;color:#fff}.upgrade-price{font-size:48px;font-weight:900;color:#fff;line-height:1}.upgrade-price span{font-size:18px;font-weight:400;opacity:.8}.upgrade-benefits{padding:28px 36px;display:flex;flex-direction:column;gap:14px}.upgrade-benefits .benefit{font-size:15px;color:#374151;align-items:center;gap:12px}.upgrade-benefits .benefit>span:first-child{width:28px;height:28px;background:#d1fae5;color:#065f46;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;flex-shrink:0}.btn-upgrade-full{display:block;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff!important;text-align:center;font-size:16px;font-weight:800;padding:16px 28px;border-radius:12px;text-decoration:none;margin:0 36px 36px;box-shadow:0 6px 20px rgb(102 126 234 / .4);transition:all .2s}.btn-upgrade-full:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgb(102 126 234 / .5);color:#fff!important}.upgrade-success{background:#fff;border-radius:24px;box-shadow:0 10px 40px rgb(0 0 0 / .10);padding:60px 40px;text-align:center}.upgrade-success .us-icon{font-size:72px;margin-bottom:16px}.upgrade-success h1{font-size:26px;font-weight:800;color:#1f2937;margin-bottom:12px}.upgrade-success p{color:#6b7280;font-size:15px;margin-bottom:24px}.vclass-enroll{max-width:480px;margin:60px auto;padding:0 20px}.enroll-card{background:#fff;border-radius:24px;box-shadow:0 10px 40px rgb(0 0 0 / .10);overflow:hidden}.enroll-header{background:linear-gradient(135deg,#667eea,#764ba2);padding:36px;text-align:center}.enroll-header h1{font-size:26px;font-weight:800;color:#fff;margin:0 0 8px}.enroll-header p{color:rgb(255 255 255 / .85);font-size:14px;margin:0}.enroll-error{background:#fee2e2;color:#991b1b;padding:12px 20px;font-size:13px;border-left:4px solid #ef4444;margin:20px 36px 0;border-radius:6px}.enroll-form{padding:28px 36px;display:flex;flex-direction:column;gap:18px}.enroll-form .form-group{display:flex;flex-direction:column;gap:6px}.enroll-form label{font-size:13px;font-weight:600;color:#374151}.enroll-form input{padding:11px 14px;border:1px solid #e5e7eb;border-radius:10px;font-size:14px;color:#1f2937;transition:border-color .2s,box-shadow .2s;outline:none}.enroll-form input:focus{border-color:#667eea;box-shadow:0 0 0 3px rgb(102 126 234 / .15)}.btn-primary-full{display:block;width:100%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;padding:14px;font-size:15px;font-weight:700;cursor:pointer;text-align:center;text-decoration:none;transition:all .2s}.btn-primary-full:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgb(102 126 234 / .4);color:#fff}.enroll-footer{text-align:center;padding:0 36px 28px;font-size:13px;color:#6b7280}.enroll-footer a{color:#667eea;font-weight:600;text-decoration:none}.profile-inner{max-width:1000px;margin:0 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rgb(102 126 234 / .4);color:#fff!important}.vclass-notice{background:#eff6ff;border:1px solid #bfdbfe;border-radius:12px;padding:20px 24px;color:#1e40af;font-size:14px;margin:20px 0}.vclass-notice.upgrade-required{background:#fff;border:none;box-shadow:0 10px 40px rgb(0 0 0 / .10);border-radius:20px;padding:48px;text-align:center;max-width:480px;margin:60px auto}.vclass-notice.upgrade-required .lock-icon{font-size:56px;margin-bottom:16px}.vclass-notice.upgrade-required h2{font-size:22px;color:#1f2937;margin-bottom:12px}.vclass-notice.upgrade-required p{color:#6b7280;margin-bottom:24px}.vclass-admin-wrap{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:12px;padding:20px 24px;color:#166534}.vclass-admin-wrap a{color:#15803d;font-weight:600}@media (max-width:600px){.dash-welcome h1{font-size:22px}.upgrade-card,.enroll-card{border-radius:16px}.upgrade-header,.enroll-header{padding:28px 20px}.upgrade-benefits{padding:20px}.btn-upgrade-full{margin:0 20px 24px}.enroll-form{padding:20px}.enroll-footer{padding:0 20px 20px}.profile-inner{padding:20px 16px}.vclass-notice.upgrade-required{padding:32px 24px;margin:32px auto}.ub-benefits{grid-template-columns:1fr}}#profileForm .form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}#profileForm label{font-size:13px;font-weight:600;color:#374151}#profileForm input{padding:10px 14px;border:1px solid #e5e7eb;border-radius:10px;font-size:14px;color:#1f2937;outline:none;transition:border-color .2s;width:100%;box-sizing:border-box}#profileForm input:focus{border-color:#667eea;box-shadow:0 0 0 3px rgb(102 126 234 / .15)}#profileForm input:disabled{background:#f9fafb;color:#9ca3af;cursor:not-allowed}.vclass-sessions-page{padding:0 0 60px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif}.vsp-hero{background:linear-gradient(135deg,var(--primary,#667eea) 0%,var(--secondary,#764ba2) 100%);border-radius:24px;padding:56px 48px 48px;margin-bottom:40px;color:#fff;position:relative;overflow:hidden}.vsp-hero::before{content:'';position:absolute;top:-60px;right:-60px;width:280px;height:280px;border-radius:50%;background:rgb(255 255 255 / .06);pointer-events:none}.vsp-hero::after{content:'';position:absolute;bottom:-80px;left:-40px;width:200px;height:200px;border-radius:50%;background:rgb(255 255 255 / .04);pointer-events:none}.vsp-hero-inner{position:relative;z-index:1;display:flex;align-items:flex-start;justify-content:space-between;gap:32px;flex-wrap:wrap}.vsp-hero-text{flex:1;min-width:260px}.vsp-eyebrow{display:inline-flex;align-items:center;gap:6px;background:rgb(255 255 255 / .15);border:1px solid rgb(255 255 255 / .25);border-radius:20px;padding:4px 14px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:rgb(255 255 255 / .95);margin-bottom:16px}.vsp-title{font-size:40px;font-weight:900;color:#fff;line-height:1.1;margin:0 0 12px;letter-spacing:-.02em}.vsp-subtitle{font-size:16px;color:rgb(255 255 255 / .82);margin:0 0 32px;max-width:520px;line-height:1.6}.vsp-stats{display:flex;gap:12px;flex-wrap:wrap}.vsp-stat-pill{display:flex;align-items:center;gap:8px;background:rgb(255 255 255 / .15);border:1px solid rgb(255 255 255 / .2);border-radius:50px;padding:8px 18px;backdrop-filter:blur(8px)}.vsp-stat-pill.is-live-pill{background:rgb(239 68 68 / .35);border-color:rgb(239 68 68 / .5);animation:pulse-badge 2s infinite}.vsp-stat-icon{font-size:18px}.vsp-stat-body{display:flex;flex-direction:column}.vsp-stat-num{font-size:20px;font-weight:800;color:#fff;line-height:1}.vsp-stat-lbl{font-size:11px;color:rgb(255 255 255 / .75);font-weight:500}.vsp-hero-cta{background:rgb(255 255 255 / .12);border:1px solid rgb(255 255 255 / .2);border-radius:20px;padding:28px 28px 24px;text-align:center;min-width:240px;backdrop-filter:blur(8px);flex-shrink:0}.vsp-hero-cta p{color:rgb(255 255 255 / .9);font-size:14px;margin:0 0 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solid var(--border,#e5e7eb);border-radius:50px;padding:7px 18px;font-size:13px;font-weight:600;color:var(--gray,#6b7280);cursor:pointer;transition:all .15s}.vsp-filter-btn:hover,.vsp-filter-btn.active{border-color:var(--primary,#667eea);color:var(--primary,#667eea);background:#eef2ff}.vsp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:24px}.vsp-card{background:#fff;border-radius:20px;border:1px solid var(--border,#e5e7eb);box-shadow:0 1px 4px rgb(0 0 0 / .05),0 4px 16px rgb(0 0 0 / .04);display:flex;flex-direction:column;overflow:hidden;transition:transform .22s ease,box-shadow .22s ease;position:relative}.vsp-card:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgb(102 126 234 / .14),0 2px 8px rgb(0 0 0 / .06)}.vsp-card.is-live{border-color:#fca5a5;box-shadow:0 0 0 3px rgb(239 68 68 / .12),0 4px 20px rgb(239 68 68 / .08)}.vsp-card.is-past{opacity:.6;filter:grayscale(.25)}.vsp-card.is-past:hover{transform:none}.vsp-card-stripe{height:5px;background:linear-gradient(90deg,var(--primary,#667eea),var(--secondary,#764ba2))}.vsp-card.is-live .vsp-card-stripe{background:linear-gradient(90deg,#ef4444,#f97316)}.vsp-card.is-past .vsp-card-stripe{background:#e5e7eb}.vsp-card.is-premium .vsp-card-stripe{background:linear-gradient(90deg,#f59e0b,#d97706)}.vsp-card-badge{display:inline-flex;align-items:center;gap:5px;padding:5px 12px;border-radius:50px;font-size:11px;font-weight:700;letter-spacing:.04em}.vsp-badge-live{background:#fef2f2;color:#991b1b;animation:pulse-badge 1.5s infinite}.vsp-badge-past{background:#f0fdf4;color:#166534}.vsp-badge-today{background:#eff6ff;color:#1e40af}.vsp-badge-premium{background:#fffbeb;color:#92400e}.vsp-badge-free{background:#f5f3ff;color:#5b21b6}.vsp-card-body{padding:20px 22px 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.4)}.vsp-btn-upgrade{background:linear-gradient(135deg,var(--premium,#f59e0b),#d97706);color:#fff!important;box-shadow:0 4px 14px rgb(245 158 11 / .3)}.vsp-btn-upgrade:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgb(245 158 11 / .4)}.vsp-btn-login{background:#f3f4f6;color:var(--dark,#374151)!important;border:2px solid var(--border,#e5e7eb)}.vsp-btn-login:hover{background:#e5e7eb;transform:translateY(-1px)}.vsp-btn-disabled{display:flex;align-items:center;justify-content:center;padding:12px;border-radius:12px;font-size:13px;color:#9ca3af;background:#f9fafb;border:1px dashed #d1d5db;cursor:default;width:100%}.vsp-locked{display:flex;flex-direction:column;gap:6px}.vsp-locked-note{text-align:center;font-size:11px;color:#9ca3af}.vsp-empty{text-align:center;padding:80px 20px;background:#fff;border-radius:24px;border:2px dashed var(--border,#e5e7eb);grid-column:1 / -1}.vsp-empty-icon{font-size:72px;margin-bottom:20px;line-height:1}.vsp-empty h2{font-size:24px;font-weight:800;color:var(--dark,#1f2937);margin-bottom:10px}.vsp-empty p{color:var(--gray,#6b7280);font-size:15px;margin-bottom:28px}.vsp-footer-nav{margin-top:48px;display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--border,#e5e7eb)}.vsp-back-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary,#667eea);font-size:14px;font-weight:600;text-decoration:none;padding:8px 16px;border-radius:10px;border:1px solid #fff0;transition:all .15s}.vsp-back-link:hover{border-color:var(--primary,#667eea);background:#eef2ff}@media (max-width:900px){.vsp-hero{padding:36px 28px 32px}.vsp-title{font-size:30px}.vsp-grid{grid-template-columns:1fr 1fr}}@media (max-width:640px){.vsp-hero{padding:28px 20px 24px;border-radius:16px}.vsp-hero-inner{flex-direction:column}.vsp-title{font-size:26px}.vsp-subtitle{font-size:14px;margin-bottom:20px}.vsp-stats{gap:8px}.vsp-stat-pill{padding:7px 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