@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--primary:#ff8a00;--primary-hover:#e67a00;--success:#10b981;--success-bg:#d1fae5;--success-text:#065f46;--danger:#ef4444;--warning:#f59e0b;--warning-bg:#fef3c7;--warning-text:#92400e;--bg-body:#f4f6f8;--bg-card:#fff;--border-color:#e5e7eb;--text-main:#111827;--text-muted:#6b7280;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 25px -5px #0000001a, 0 8px 10px -6px #0000001a}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-body);color:var(--text-main);-webkit-font-smoothing:antialiased;font-family:Inter,sans-serif}.app-container{min-height:100vh;display:flex}.btn{border-radius:var(--radius-md);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px #ff8a004d}.btn-danger{color:var(--danger);border-radius:var(--radius-sm);background-color:#0000;padding:8px}.btn-danger:hover{background-color:#fee2e2}.panel-container{flex:1;max-width:900px;margin:0 auto;padding:40px}.header-section{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:30px;padding-bottom:20px;display:flex}.header-title-group{align-items:center;gap:16px;display:flex}.icon-circle{background-color:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;font-size:20px;display:flex;box-shadow:0 4px 12px #ff8a004d}.icon-circle-small{background-color:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:16px;display:flex}.panel-title{color:var(--text-main);font-size:22px;font-weight:700;line-height:1.2}.panel-subtitle{color:var(--text-muted);margin-top:2px;font-size:14px}.card-section{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);margin-bottom:24px;padding:24px}.card-header{align-items:center;gap:12px;margin-bottom:16px;font-size:18px;font-weight:700;display:flex}.form-grid{grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px;display:grid}.form-grid.full{grid-template-columns:1fr}.form-group{flex-direction:column;gap:8px;display:flex}.form-label{color:var(--text-main);font-size:13px;font-weight:600}.input-field{border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;color:var(--text-main);background-color:#f9fafb;padding:12px 16px;font-family:inherit;font-size:14px;transition:border-color .2s}.input-field:focus{border-color:var(--primary);background-color:#fff;outline:none;box-shadow:0 0 0 3px #ff8a001a}.lesson-card{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);flex-direction:column;gap:20px;margin-bottom:16px;padding:24px;transition:transform .2s,box-shadow .2s;display:flex}.lesson-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.lesson-info{align-items:center;gap:16px;display:flex}.lesson-title{color:var(--text-main);font-size:18px;font-weight:700}.lesson-desc{color:var(--text-muted);margin-top:4px;font-size:14px}.lesson-actions{align-items:center;gap:12px;display:flex}.btn-locked{background-color:var(--primary);color:#fff;border-radius:var(--radius-md);border:none;flex-direction:column;align-items:center;gap:4px;width:100%;padding:16px;font-size:15px;font-weight:600;display:flex}.btn-locked span{font-size:18px;font-weight:700}.badge{border-radius:100px;align-items:center;gap:6px;padding:6px 12px;font-size:12px;font-weight:600;display:inline-flex}.badge-active{background-color:var(--success-bg);color:var(--success-text)}.badge-locked{background-color:var(--warning-bg);color:var(--warning-text)}.list-item{border:1px solid var(--border-color);border-radius:var(--radius-md);justify-content:space-between;align-items:center;margin-bottom:12px;padding:16px;display:flex}.list-item-left{align-items:center;gap:16px;display:flex}.list-item-footer{color:var(--text-muted);align-items:center;gap:16px;font-size:13px;display:flex}.dashboard-layout{background-color:var(--bg-body);min-height:100vh;display:flex}.sidebar{background-color:var(--bg-card);border-right:1px solid var(--border-color);flex-direction:column;width:250px;transition:width .3s;display:flex;overflow:hidden;box-shadow:2px 0 10px #00000005}.sidebar.collapsed{width:60px}.sidebar-header{border-bottom:1px solid var(--border-color);white-space:nowrap;justify-content:space-between;align-items:center;padding:20px;display:flex}.sidebar-toggle{cursor:pointer;color:var(--text-muted);background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:5px;display:flex}.sidebar-toggle:hover{background:var(--bg-body);color:var(--primary)}.sidebar-nav{flex:1;padding:15px 10px}.sidebar-item{color:var(--text-muted);cursor:pointer;white-space:nowrap;border-radius:8px;align-items:center;margin-bottom:5px;padding:12px 15px;transition:all .2s;display:flex}.sidebar-item:hover{background-color:var(--bg-body);color:var(--primary)}.sidebar-item.active{background-color:var(--primary);color:#fff}.sidebar-item-icon{justify-content:center;align-items:center;min-width:20px;margin-right:12px;display:flex}.sidebar.collapsed .sidebar-item-icon{margin-right:0}.main-content{flex:1;max-width:calc(100vw - 60px);padding:30px;overflow-y:auto}@media (width<=768px){.dashboard-layout{flex-direction:column}.sidebar{border-right:none;border-bottom:1px solid var(--border-color);height:auto;width:100%!important}.sidebar.collapsed{width:100%!important}.sidebar-nav{gap:10px;padding:10px;display:flex;overflow-x:auto}.sidebar-item{flex-direction:column;margin-bottom:0;padding:8px 12px;font-size:12px}.sidebar-item-icon{margin-bottom:4px;margin-right:0}.sidebar-toggle{display:none}.main-content{max-width:100vw;padding:15px}.panel-container{padding:15px}.form-grid{grid-template-columns:1fr;gap:15px}.exam-footer{padding:10px 5px!important}.exam-footer-opts{gap:5px!important}.exam-opt-btn{width:35px!important;height:35px!important;font-size:14px!important}.exam-nav-btn{height:40px!important;padding:0 10px!important;font-size:13px!important}}