:root{--accent-green:#059669;--accent-green-dark:#047857;--accent-green-light:#ecfdf5;--accent-green-border:#a7f3d0;--accent-blue:#2563eb;--accent-blue-dark:#1d4ed8;--accent-blue-light:#eff6ff;--accent-blue-border:#bfdbfe;--accent-purple:#7c3aed;--accent-purple-light:#f5f3ff;--accent-purple-border:#ddd6fe;--accent-yellow:#d97706;--accent-yellow-light:#fffbeb;--accent-yellow-border:#fde68a;--accent-red:#dc2626;--accent-red-light:#fef2f2;--accent-red-border:#fecaca;--background-light:#f8fafc;--background-white:#fff;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--card-border:#e2e8f0;--card-border-subtle:#f1f5f9;--sidebar-width:260px;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--radius-full:9999px;--shadow-xs:0 1px 2px 0 #0f172a0a;--shadow-sm:0 1px 3px 0 #0f172a0f, 0 1px 2px -1px #0f172a0a;--shadow-md:0 4px 6px -1px #0f172a12, 0 2px 4px -2px #0f172a0d;--shadow-lg:0 10px 15px -3px #0f172a14, 0 4px 6px -4px #0f172a0a;--shadow-xl:0 20px 25px -5px #0f172a1a, 0 8px 10px -6px #0f172a0f;--font-sans:-apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--sat:env(safe-area-inset-top,0px);--sab:env(safe-area-inset-bottom,0px);--sal:env(safe-area-inset-left,0px);--sar:env(safe-area-inset-right,0px)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);color:var(--text-primary);background-color:var(--background-light);max-width:100vw;font-size:15px;line-height:1.5;overflow-x:hidden}button,a,input,select,textarea{touch-action:manipulation}a{color:var(--accent-green);text-decoration:none;transition:color .15s}a:hover{color:var(--accent-green-dark)}.container{max-width:1200px;margin:0 auto;padding:0 20px}.main-content{min-height:100vh;padding-bottom:4rem}.dashboard-wrapper{background-color:var(--background-light);min-height:100vh;display:flex}.dashboard-sidebar{width:var(--sidebar-width);border-right:1px solid var(--card-border);z-index:100;height:100vh;box-shadow:var(--shadow-xs);background:#fff;flex-direction:column;transition:transform .25s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;top:0;left:0}.sidebar-brand-wrapper{border-bottom:1px solid var(--card-border-subtle);justify-content:space-between;align-items:center;padding:20px 20px 16px;display:flex}.sidebar-brand-link{color:inherit;align-items:center;gap:12px;text-decoration:none;display:flex}.sidebar-brand-logo{border-radius:var(--radius-md);background:linear-gradient(135deg, var(--accent-green) 0%, #10b981 100%);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;display:flex;box-shadow:0 2px 6px #05966940}.sidebar-brand-text{flex-direction:column;display:flex}.brand-name{color:var(--text-primary);letter-spacing:-.3px;font-size:1.05rem;font-weight:700;line-height:1.2}.brand-sub{color:var(--text-muted);font-size:.72rem;font-weight:500}.sidebar-close-btn{color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;padding:6px;display:none}.sidebar-portal-tag{padding:14px 18px 6px}.portal-badge-pill{color:var(--text-secondary);border-radius:var(--radius-full);letter-spacing:.02em;background:#f1f5f9;align-items:center;gap:8px;padding:5px 12px;font-size:.76rem;font-weight:600;display:inline-flex}.sidebar-nav{flex-direction:column;flex:1;gap:4px;padding:12px 14px;display:flex;overflow-y:auto}.sidebar-nav-item{border-radius:var(--radius-md);color:var(--text-secondary);align-items:center;gap:12px;padding:10px 14px;font-size:.9rem;font-weight:500;text-decoration:none;transition:all .15s;display:flex;position:relative}.sidebar-nav-item:hover{color:var(--text-primary);background:#f8fafc}.sidebar-nav-item.active{background:var(--accent-green-light);color:var(--accent-green-dark);font-weight:600}.sidebar-nav-item.active .nav-icon{color:var(--accent-green)}.nav-active-arrow{color:var(--accent-green);margin-left:auto}.sidebar-footer{border-top:1px solid var(--card-border-subtle);background:#fff;padding:16px}.sidebar-user-card{align-items:center;gap:12px;padding:6px 4px 12px;display:flex}.sidebar-user-avatar{color:#fff;background:#0f172a;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:.9rem;font-weight:700;display:flex}.sidebar-user-details{flex-direction:column;display:flex;overflow:hidden}.sidebar-user-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.88rem;font-weight:600;overflow:hidden}.sidebar-user-role{color:var(--text-muted);font-size:.75rem}.sidebar-logout-button{width:100%;color:var(--accent-red);border-radius:var(--radius-md);cursor:pointer;background:#fff5f5;border:1px solid #fee2e2;justify-content:center;align-items:center;gap:8px;padding:9px 12px;font-family:inherit;font-size:.84rem;font-weight:600;transition:all .15s;display:flex}.sidebar-logout-button:hover{background:#fee2e2}.dashboard-main{margin-left:var(--sidebar-width);flex-direction:column;flex:1;min-height:100vh;display:flex}.dashboard-header{border-bottom:1px solid var(--card-border);background:#fff;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:28px 36px 18px;display:flex}.dashboard-title{color:var(--text-primary);letter-spacing:-.4px;margin:0;font-size:1.65rem;font-weight:700}.dashboard-subtitle{color:var(--text-secondary);margin:4px 0 0;font-size:.88rem}.dashboard-content{flex:1;padding:28px 36px 60px}.mobile-topbar{height:calc(60px + env(safe-area-inset-top,0px));padding:env(safe-area-inset-top,0px) 16px 0;-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--card-border);z-index:250;background:#fffffff2;justify-content:space-between;align-items:center;display:none;position:fixed;top:0;left:0;right:0;box-shadow:0 1px 4px #0f172a0a}.mobile-menu-btn{color:var(--text-primary);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;justify-content:center;align-items:center;min-width:44px;min-height:44px;padding:8px;display:flex}.mobile-menu-btn:active{background:#f1f5f9}.mobile-brand{align-items:center;gap:8px;display:flex}.brand-icon-mini{border-radius:var(--radius-sm);background:var(--accent-green);justify-content:center;align-items:center;width:28px;height:28px;display:flex}.mobile-brand .brand-title{color:var(--text-primary);letter-spacing:-.3px;font-size:1rem;font-weight:700}.mobile-user-avatar{color:#fff;background:#0f172a;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;font-size:.82rem;font-weight:700;display:flex}.sidebar-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:280;background:#0f172a66;display:none;position:fixed;inset:0}.mobile-bottom-nav{height:calc(60px + env(safe-area-inset-bottom,0px));padding-bottom:env(safe-area-inset-bottom,0px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--card-border);z-index:250;background:#fffffff2;justify-content:space-around;align-items:center;display:none;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -2px 10px #0f172a0a}.mobile-bottom-nav-item{color:#64748b;-webkit-user-select:none;user-select:none;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:3px;height:100%;min-height:48px;font-size:.7rem;font-weight:600;text-decoration:none;transition:all .15s;display:flex;position:relative}.mobile-bottom-nav-item:active{transform:scale(.96)}.mobile-bottom-nav-item.active{color:var(--accent-green-dark);font-weight:700}.mobile-bottom-nav-item.active .mobile-bottom-icon{color:var(--accent-green)}.mobile-bottom-nav-item .mobile-bottom-indicator{background:var(--accent-green);border-radius:0 0 3px 3px;width:24px;height:2.5px;position:absolute;top:0}.glass-card{border-radius:var(--radius-lg);border:1px solid var(--card-border);box-shadow:var(--shadow-sm);background-color:#fff;transition:all .2s cubic-bezier(.16,1,.3,1)}.glass-card:hover{box-shadow:var(--shadow-md)}.responsive-profile-layout{grid-template-columns:320px 1fr;align-items:start;gap:24px;display:grid}@media (max-width:960px){.responsive-profile-layout{grid-template-columns:1fr;gap:20px}}.teacher-hero-card{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));align-items:center;gap:32px;padding:36px;display:grid}.teacher-content-card{padding:32px}.student-banner-card{padding:24px 28px}@media (max-width:768px){.teacher-hero-card{grid-template-columns:1fr!important;gap:20px!important;padding:20px 16px!important}.teacher-content-card{padding:20px 16px!important}.student-banner-card{padding:18px 16px!important}}.courses-filter-console{padding:24px}.courses-grid{grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:22px;margin-bottom:64px;display:grid}@media (max-width:768px){.courses-filter-console{border-radius:14px!important;gap:14px!important;padding:16px 14px!important}.courses-grid{grid-template-columns:1fr!important;gap:16px!important;margin-bottom:40px!important}.main-content{padding-top:calc(82px + env(safe-area-inset-top,0px))!important;padding-bottom:48px!important}}.responsive-stats-row{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.responsive-grid-2{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}@media (max-width:768px){.responsive-grid-2{grid-template-columns:1fr}}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-bottom:24px;display:grid}.stat-card{border-radius:var(--radius-lg);border:1px solid var(--card-border);box-shadow:var(--shadow-sm);background:#fff;padding:20px 22px;transition:transform .2s,box-shadow .2s;position:relative;overflow:hidden}.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.stat-card-accent{border-radius:var(--radius-lg) 0 0 var(--radius-lg);width:4px;position:absolute;top:0;bottom:0;left:0}.stat-card-value{color:var(--text-primary);margin-bottom:4px;font-size:1.85rem;font-weight:700;line-height:1.2;display:block}.stat-card-label{color:var(--text-secondary);font-size:.85rem;font-weight:500;display:block}.stat-card-sublabel{color:var(--text-muted);margin-top:4px;font-size:.78rem;display:block}.glass-btn{color:var(--text-primary);border-radius:var(--radius-md);cursor:pointer;background:#fff;border:1px solid #cbd5e1;justify-content:center;align-items:center;gap:8px;padding:9px 18px;font-family:inherit;font-size:.88rem;font-weight:600;line-height:1.4;text-decoration:none;transition:all .15s;display:inline-flex}.glass-btn:hover{background:#f8fafc;border-color:#94a3b8;transform:translateY(-1px)}.glass-btn.primary{background:var(--accent-green);color:#fff;border:1px solid var(--accent-green);box-shadow:0 1px 2px #05966933}.glass-btn.primary:hover{background:var(--accent-green-dark);border-color:var(--accent-green-dark);box-shadow:0 2px 4px #0596694d}.glass-btn.secondary{color:var(--text-primary);border:1px solid var(--card-border);background:#f8fafc}.glass-btn.secondary:hover{background:#fff;border-color:#cbd5e1}.glass-btn.danger{background:var(--accent-red);color:#fff;border:1px solid var(--accent-red)}.glass-btn.danger:hover{background:#b91c1c;border-color:#b91c1c}.glass-btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.input-field{border-radius:var(--radius-md);border:1px solid var(--card-border);width:100%;color:var(--text-primary);background:#fff;outline:none;margin-bottom:1rem;padding:10px 14px;font-family:inherit;font-size:.92rem;transition:border-color .2s,box-shadow .2s}.input-field:focus{border-color:var(--accent-green);box-shadow:0 0 0 3px #05966926}.form-label{color:var(--text-primary);margin-bottom:6px;font-size:.88rem;font-weight:600;display:block}.form-group{margin-bottom:1.25rem}.data-table-wrapper{border-radius:var(--radius-lg);border:1px solid var(--card-border);box-shadow:var(--shadow-sm);-webkit-overflow-scrolling:touch;background:#fff;overflow-x:auto}.data-table{border-collapse:separate;border-spacing:0;text-align:left;width:100%}.data-table th{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--card-border);white-space:nowrap;background:#f8fafc;padding:12px 18px;font-size:.75rem;font-weight:700}.data-table td{color:var(--text-primary);border-bottom:1px solid var(--card-border-subtle);vertical-align:middle;padding:14px 18px;font-size:.88rem}.data-table tbody tr:last-child td{border-bottom:none}.data-table tbody tr{transition:background-color .12s}.data-table tbody tr:hover{background-color:#f8fafc}.badge{border-radius:var(--radius-full);white-space:nowrap;vertical-align:middle;justify-content:center;align-items:center;gap:5px;height:fit-content;padding:4px 10px;font-size:.78rem;font-weight:600;line-height:1.2;display:inline-flex}.status-badge{letter-spacing:.02em;border-radius:var(--radius-full);white-space:nowrap;vertical-align:middle;border:1px solid #0000;justify-content:center;align-items:center;gap:6px;height:fit-content;padding:4px 12px;font-size:.76rem;font-weight:600;line-height:1.2;display:inline-flex}.status-badge.badge-scheduled{background:var(--accent-blue-light);color:var(--accent-blue-dark);border-color:var(--accent-blue-border)}.status-badge.badge-live,.status-badge.badge-completed{background:var(--accent-green-light);color:var(--accent-green-dark);border-color:var(--accent-green-border)}.status-badge.badge-not-conducted{background:var(--accent-red-light);color:var(--accent-red);border-color:var(--accent-red-border)}.status-badge.badge-cancelled{color:#dc2626;background:#fef2f2;border-color:#fecaca}.status-badge.badge-needs-review{background:var(--accent-yellow-light);color:var(--accent-yellow);border-color:var(--accent-yellow-border)}.telemetry-chip{border-radius:var(--radius-full);color:var(--text-secondary);border:1px solid var(--card-border);vertical-align:middle;background:#f8fafc;justify-content:center;align-items:center;gap:6px;height:fit-content;padding:4px 10px;font-size:.76rem;font-weight:600;line-height:1.2;display:inline-flex}.telemetry-chip.live{background:var(--accent-green-light);color:var(--accent-green-dark);border-color:var(--accent-green-border)}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:500;background:#0f172a73;justify-content:center;align-items:center;padding:18px;display:flex;position:fixed;inset:0}.modal-content{border-radius:var(--radius-xl);width:100%;max-width:520px;max-height:85vh;box-shadow:var(--shadow-xl);border:1px solid var(--card-border);background:#fff;padding:28px;animation:.2s cubic-bezier(.16,1,.3,1) modalPop;overflow-y:auto}@keyframes modalPop{0%{opacity:0;transform:scale(.96)translateY(8px)}to{opacity:1;transform:scale(1)translateY(0)}}.mobile-sheet-handle{background:#cbd5e1;border-radius:999px;flex-shrink:0;width:38px;height:4.5px;margin:0 auto 16px;display:none}.alert{border-radius:var(--radius-md);align-items:center;gap:10px;margin-bottom:18px;padding:12px 18px;font-size:.88rem;font-weight:500;display:flex}.alert-success{background:var(--accent-green-light);color:var(--accent-green-dark);border:1px solid var(--accent-green-border)}.alert-error{background:var(--accent-red-light);color:var(--accent-red);border:1px solid var(--accent-red-border)}.alert-warning{background:var(--accent-yellow-light);color:var(--accent-yellow);border:1px solid var(--accent-yellow-border)}.alert-info{background:var(--accent-blue-light);color:var(--accent-blue-dark);border:1px solid var(--accent-blue-border)}.loading-spinner{border:3px solid #05966926;border-top-color:var(--accent-green);border-radius:50%;width:36px;height:36px;animation:.75s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-container{justify-content:center;align-items:center;min-height:300px;display:flex}.section-heading{color:var(--text-primary);align-items:center;gap:8px;margin-bottom:16px;font-size:1.15rem;font-weight:700;display:flex}.empty-state{text-align:center;color:var(--text-secondary);padding:48px 24px}.empty-state h3{color:var(--text-primary);margin-bottom:6px;font-size:1.1rem;font-weight:700}.empty-state p{font-size:.88rem}@media (max-width:1024px){.dashboard-header{padding:24px 24px 16px}.dashboard-content{padding:24px 24px 48px}.stats-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.mobile-topbar,.mobile-bottom-nav{display:flex}.dashboard-sidebar{box-shadow:var(--shadow-xl);z-index:300;width:min(300px,85vw);padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);transform:translate(-100%)}.dashboard-sidebar.open{transform:translate(0)}.sidebar-close-btn{justify-content:center;align-items:center;min-width:44px;min-height:44px;display:flex}.sidebar-overlay{display:block}.dashboard-main{padding-top:calc(60px + env(safe-area-inset-top,0px));padding-bottom:calc(72px + env(safe-area-inset-bottom,0px));margin-left:0}.dashboard-header{padding:18px 16px 14px}.dashboard-title{font-size:1.35rem}.dashboard-content{padding:16px 14px calc(24px + env(safe-area-inset-bottom,0px))}.stats-grid{grid-template-columns:repeat(2,1fr);gap:10px}.stats-grid>div{padding:14px 12px!important}.data-table th,.data-table td{padding:10px 12px;font-size:.82rem}.mobile-sheet-handle{display:block}.modal-overlay{z-index:1000;align-items:flex-end;padding:0}.modal-content{width:100%!important;max-width:100%!important;padding:24px 18px calc(24px + env(safe-area-inset-bottom,0px))!important;border-bottom:none!important;border-radius:22px 22px 0 0!important;max-height:88vh!important;animation:.28s cubic-bezier(.16,1,.3,1) sheetSlideUp!important;box-shadow:0 -10px 40px #0003!important}@keyframes sheetSlideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}input,select,textarea{font-size:16px!important}.glass-btn{min-height:44px;padding:10px 16px;font-size:.88rem}}@media (max-width:480px){.dashboard-header{padding:14px 12px 10px}.dashboard-title{font-size:1.25rem}.dashboard-content{padding:12px 12px calc(24px + env(safe-area-inset-bottom,0px))}.glass-card{border-radius:var(--radius-md);padding:16px!important}.stat-card{padding:16px 18px}.stat-card-value{font-size:1.5rem}.telemetry-chip,.status-badge{padding:3px 8px;font-size:.72rem}}.mobile-scroll-strip{-webkit-overflow-scrolling:touch;scrollbar-width:none;-ms-overflow-style:none;gap:8px;max-width:100%;padding-bottom:6px;display:flex;overflow-x:auto}.mobile-scroll-strip::-webkit-scrollbar{display:none}.mobile-time-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));align-items:center;gap:16px;display:grid}@media (max-width:600px){.mobile-time-grid{grid-template-columns:1fr;gap:12px}.mobile-full-btn{justify-content:center!important;width:100%!important}}.student-onboard-card{box-sizing:border-box;background:#fff;border:1px solid #e2e8f0;border-radius:20px;width:100%;max-width:560px;margin:0 auto;padding:40px;position:relative;box-shadow:0 10px 30px #0f172a0f}@media (max-width:600px){.student-onboard-card{border-radius:14px!important;padding:24px 18px!important}.teacher-profile-card{border-radius:14px!important}.teacher-card-header{gap:12px!important;padding:14px 14px 12px!important}.teacher-card-avatar{border-radius:12px!important;width:58px!important;height:58px!important;font-size:1.3rem!important}.teacher-card-body{padding:14px!important}.teacher-hero-card{border-radius:14px!important;gap:16px!important;padding:18px 16px!important}.teacher-content-card{border-radius:14px!important;padding:18px 16px!important}.courses-grid{grid-template-columns:1fr!important;gap:16px!important}.courses-filter-console{margin-bottom:20px!important;padding:12px 14px!important}}