:root{--primary: #D7191E;--primary-hover: #B7151B;--primary-light: #F5EEE6;--success: #10B981;--warning: #F59E0B;--danger: #EF4444;--bg-main: #F3F4F6;--bg-surface: #FFFFFF;--bg-surface-hover: #F9FAFB;--text-primary: #111827;--text-secondary: #4B5563;--text-muted: #9CA3AF;--border-color: #E5E7EB;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 20px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--transition: all .2s ease-in-out}*{margin:0;padding:0;box-sizing:border-box}body{font-family:DM Sans,sans-serif;font-weight:300;background-color:var(--bg-main);color:var(--text-primary);-webkit-font-smoothing:antialiased;height:100vh;overflow:hidden}b,strong{font-weight:500}h1,h2,h3,h4{color:var(--text-primary);font-weight:600}a{color:#000;text-decoration:none;transition:var(--transition)}a:hover{color:var(--primary-hover)}.view{display:none;height:100vh;width:100vw}.view.active{display:flex}.mb-4{margin-bottom:1rem}.hidden{display:none!important}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.25rem;font-size:.875rem;font-weight:500;border-radius:var(--radius-sm);border:none;cursor:pointer;transition:var(--transition)}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-hover);box-shadow:var(--shadow-md)}.btn-secondary{background-color:var(--bg-surface);color:var(--text-secondary);border:1px solid var(--border-color)}.btn-secondary:hover{background-color:var(--bg-surface-hover);color:var(--text-primary)}.btn-block{width:100%}.btn-icon{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:.5rem;border-radius:var(--radius-sm);transition:var(--transition);display:inline-flex;align-items:center;justify-content:center}.btn-icon:hover{background-color:var(--bg-surface-hover);color:var(--text-primary)}.form-group{margin-bottom:1.25rem}.form-group label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.5rem;color:var(--text-secondary)}.input-icon{position:relative}.input-icon i{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--text-muted)}.input-icon input{padding-left:2.75rem}input[type=email],input[type=password],input[type=text],input[type=date],select,textarea{width:100%;padding:.625rem 1rem;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:.875rem;font-family:inherit;transition:var(--transition);outline:none;background-color:var(--bg-surface);color:var(--text-primary)}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.login-wrapper{display:flex;width:100%;height:100%}.login-card{width:100%;max-width:480px;margin:auto;padding:3rem;background:var(--bg-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:10}.login-header{text-align:center;margin-bottom:2rem}.login-header .logo{display:inline-flex;align-items:center;gap:.5rem;font-size:1.5rem;font-weight:700;color:var(--primary);margin-bottom:1rem}.login-header .community-brand{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;margin-bottom:1.25rem}.login-header .community-brand img{width:240px;max-width:100%;height:auto;display:block}.login-header .community-brand span{font-size:2.5rem;font-weight:700;color:var(--primary);text-align:center}.login-header p{color:var(--text-secondary);font-size:.875rem;margin-top:.5rem}.login-hint{margin-top:1.5rem;text-align:center;font-size:.75rem;color:var(--text-muted);padding:.75rem;background:var(--bg-main);border-radius:var(--radius-sm)}.login-decoration{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden;z-index:0;pointer-events:none}.blob{position:absolute;filter:blur(80px);opacity:.15;border-radius:50%}.shape-1{top:-10%;right:-5%;width:500px;height:500px;background:linear-gradient(135deg,var(--primary),#8B5CF6)}.shape-2{bottom:-10%;left:-10%;width:600px;height:600px;background:linear-gradient(135deg,#10b981,#3b82f6)}.sidebar{width:260px;background:var(--bg-surface);border-right:1px solid var(--border-color);display:flex;flex-direction:column;height:100%}.sidebar .logo{height:70px;display:flex;align-items:center;padding:0 1.5rem;font-size:1.25rem;font-weight:700;color:var(--primary);gap:.5rem;border-bottom:1px solid var(--border-color)}.community-brand{display:flex;align-items:center;gap:.5rem;width:100%;max-width:100%;overflow:hidden}.community-brand img{max-width:100%;max-height:44px;width:auto;height:auto;flex-shrink:1;object-fit:contain;display:block}.community-brand span{font-size:1.35rem;font-weight:700;color:var(--primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-nav{flex:1;padding:1.5rem 1rem;display:flex;flex-direction:column;gap:.25rem;overflow-y:auto}.sidebar-nav-fixed{flex:0 0 auto;padding:1.5rem 1rem 0;display:flex;flex-direction:column;gap:.25rem}.nav-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:var(--radius-sm);color:var(--text-secondary);font-weight:500;font-size:.875rem}.nav-item i{font-size:1.25rem}.nav-item:hover{background:var(--bg-surface-hover);color:var(--text-primary)}.nav-item.active{background:var(--primary-light);color:#000}.nav-item.locked{opacity:.6;background:transparent;cursor:not-allowed}.sidebar-footer{padding:1rem;border-top:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;margin-top:auto}.user-info{display:flex;align-items:center;gap:.75rem}.avatar{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.875rem}.user-info .details{display:flex;flex-direction:column}.user-info .name{font-size:.875rem;font-weight:600}.user-info .role{font-size:.75rem;color:var(--text-muted)}.content{flex:1;display:flex;flex-direction:column;height:100%;overflow:hidden}.topbar{height:70px;background:var(--bg-surface);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 2rem}.topbar h2{font-size:1.25rem}.scroll-area{flex:1;overflow-y:auto;padding:2rem}.admin-section{display:none}.admin-section.active{display:block}.phase-card{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);margin-bottom:1.5rem;overflow:hidden}.phase-card-header{padding:1.25rem 1.5rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:flex-start;background:var(--bg-surface-hover)}.phase-card-title h3{margin-bottom:.25rem}.phase-card-title p{color:var(--text-secondary);font-size:.875rem}.phase-rule-badge{display:inline-block;padding:.25rem .5rem;background:var(--primary-light);color:#000;font-size:.75rem;border-radius:4px;margin-top:.5rem;font-weight:500}.task-list{padding:1rem 1.5rem}.task-item{display:flex;justify-content:space-between;align-items:center;padding:.75rem;border:1px solid var(--border-color);border-radius:var(--radius-sm);margin-bottom:.5rem;background:var(--bg-main)}.task-item:last-child{margin-bottom:0}.user-progress-card{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:1.5rem;margin-bottom:1rem;display:flex;justify-content:space-between;align-items:center}.user-progress-info h4{margin-bottom:.5rem}.user-progress-stats{display:flex;gap:1.5rem;font-size:.875rem;color:var(--text-secondary)}.progress-bar-container{width:200px}.phase-container{max-width:800px;margin:0 auto}.phase-hero{background:var(--bg-surface);border-radius:var(--radius-md);padding:2rem;margin-bottom:2rem;box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.phase-hero h1{font-size:1.75rem;margin-bottom:.75rem}.phase-hero p{color:var(--text-secondary);line-height:1.6}.progress-section{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border-color)}.progress-header{display:flex;justify-content:space-between;margin-bottom:.5rem;font-size:.875rem;font-weight:500}.progress-track{height:8px;background:var(--bg-main);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:var(--success);width:0%;transition:width .5s ease-in-out}.mentee-task-list{display:flex;flex-direction:column;gap:1rem}.mentee-task-item{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:1.25rem;display:flex;gap:1rem;cursor:pointer;transition:var(--transition)}.mentee-task-item:hover{border-color:var(--primary);box-shadow:var(--shadow-md)}.mentee-task-item.completed{opacity:.8;background:var(--bg-main)}.mentee-task-item.completed .task-text{text-decoration:line-through;color:var(--text-muted)}.checkbox-custom{width:24px;height:24px;border:2px solid var(--border-color);border-radius:6px;display:flex;align-items:center;justify-content:center;color:transparent;transition:var(--transition);flex-shrink:0}.mentee-task-item.completed .checkbox-custom{background:var(--success);border-color:var(--success);color:#fff}.locked-state{text-align:center;padding:4rem 2rem;background:var(--bg-surface);border-radius:var(--radius-md);border:1px dashed var(--border-color)}.locked-state i{font-size:4rem;color:var(--text-muted);margin-bottom:1rem}.modal-backdrop{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:40;display:none}.modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(.95);width:100%;max-width:500px;background:var(--bg-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:50;display:none;opacity:0;transition:all .2s ease-in-out}.modal.show{display:block;opacity:1;transform:translate(-50%,-50%) scale(1)}.modal-backdrop.show{display:block}.modal-header{padding:1.25rem 1.5rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.modal-body{padding:1.5rem;max-height:calc(80vh - 70px);overflow-y:auto}.modal-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border-color)}.settings-group{background:var(--bg-main);padding:1rem;border-radius:var(--radius-sm);margin-top:1rem}.settings-group h4{margin-bottom:1rem;font-size:.875rem}.toast-container{position:fixed;bottom:2rem;right:2rem;z-index:100;display:flex;flex-direction:column;gap:.5rem}.toast{background:var(--text-primary);color:#fff;padding:1rem 1.5rem;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:.75rem;transform:translateY(100%);opacity:0;animation:toast-in .3s forwards}.toast.success{border-left:4px solid var(--success)}.toast.error{border-left:4px solid var(--danger)}@keyframes toast-in{to{transform:translateY(0);opacity:1}}.toggle-switch{position:relative;display:inline-block;width:44px;height:24px;margin:0;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--danger);transition:.3s;border-radius:24px}.toggle-slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:#fff;transition:.3s;border-radius:50%;box-shadow:0 2px 4px #0003}.toggle-switch input:checked+.toggle-slider{background-color:var(--success)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(20px)}.badge{background:var(--danger);color:#fff;font-size:.7rem;font-weight:700;padding:.15rem .4rem;border-radius:12px;margin-left:auto;display:inline-flex;align-items:center;justify-content:center;min-width:20px}.msg-bubble{max-width:85%;padding:.75rem 1rem;border-radius:var(--radius-md);position:relative;word-wrap:break-word;font-size:.875rem}.msg-sent{background:var(--primary);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}.msg-received{background:var(--bg-surface-hover);color:var(--text-primary);align-self:flex-start;border-bottom-left-radius:4px;border:1px solid var(--border-color)}.msg-header{display:flex;justify-content:space-between;font-size:.75rem;margin-bottom:.25rem;gap:1rem;opacity:.8}.msg-task-link{display:inline-block;margin-bottom:.5rem;font-size:.75rem;background:#0003;padding:.25rem .5rem;border-radius:4px;cursor:pointer;text-decoration:underline;opacity:.9}.msg-task-link:hover{color:inherit;opacity:1}.chat-user-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;border-bottom:1px solid var(--border-color);cursor:pointer;transition:var(--transition)}.chat-user-item:hover{background:var(--bg-surface-hover)}.chat-user-item.active{background:var(--primary-light);color:#000}.chat-user-item-info{display:flex;flex-direction:column;gap:.25rem}.chat-user-item-name{font-weight:600;font-size:.875rem}.chat-user-item-preview{font-size:.75rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px}@media(max-width:768px){.view{flex-direction:column}.sidebar{width:100%;height:auto;border-right:none;border-bottom:1px solid var(--border-color)}.sidebar-nav{flex-direction:row;overflow-x:auto;padding:1rem}.nav-item{white-space:nowrap}.sidebar-footer{display:none}.topbar{padding:0 1rem}.scroll-area{padding:1rem}}.modal-quill-content ul,.modal-quill-content ol{margin-bottom:1rem;padding-left:1.5rem}.modal-quill-content li{margin-bottom:.25rem}.modal-quill-content p:last-child,.modal-quill-content ul:last-child,.modal-quill-content ol:last-child{margin-bottom:0}.modal-quill-content a{color:var(--primary);text-decoration:underline}