:root{--bg: #fdfcfc;--card-solid: #f5f3f1;--card: rgba(245, 243, 241, .85);--text: #000000;--muted: #777169;--muted-light: #a8a29e;--line: rgba(119, 113, 105, .15);--blue: #000000;--indigo: #000000;--cyan: #18181b;--soft: #eae8e5;--topo-url: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M200 200 m -40, 0 a 40,40 0 1,0 80,0 a 40,40 0 1,0 -80,0 M200 200 m -80, 0 a 80,80 0 1,0 160,0 a 80,80 0 1,0 -80,0 M200 200 m -120, 0 a 120,120 0 1,0 240,0 a 120,120 0 1,0 -120,0 M200 200 m -160, 0 a 160,160 0 1,0 320,0 a 160,160 0 1,0 -160,0 M200 200 m -200, 0 a 200,200 0 1,0 400,0 a 200,200 0 1,0 -200,0 M200 200 m -240, 0 a 240,240 0 1,0 480,0 a 240,240 0 1,0 -240,0' fill='none' stroke='rgba(255,255,255,0.06)' stroke-width='1.2'/%3E%3C/svg%3E");--danger: #ef4444;--success: #22c55e;--warning: #eab308;--btn-hover-black: #6e6e6e;--btn-hover-white: #f2f2f2;--sp-1: 4px;--sp-2: 8px;--sp-2-5: 10px;--sp-3: 12px;--sp-4: 16px;--sp-5: 20px;--sp-6: 24px;--sp-7: 32px;--sp-8: 40px;--sp-9: 48px;--sp-10: 64px;--slate-800: #1e293b;--fs-xs: .8rem;--fs-sm: .9375rem;--fs-base: 1rem;--fs-lg: 1.1875rem;--fs-xl: 1.5625rem;--fs-2xl: 1.9375rem;--fs-3xl: 2.25rem;--fs-4xl: 2.75rem;--lh-tight: 1.15;--lh-snug: 1.3;--lh-normal: 1.5;--lh-relaxed: 1.7;--shadow-sm: 0 2px 8px rgba(24, 24, 27, .02);--shadow-md: 0 10px 30px rgba(24, 24, 27, .03);--shadow-lg: 0 20px 48px rgba(24, 24, 27, .04);--shadow-xl: 0 30px 64px rgba(24, 24, 27, .05);--r-sm: 12px;--r-md: 16px;--r-lg: 20px;--r-xl: 24px;--r-2xl: 32px;--r-3xl: 40px;--r-full: 999px;--ease-out: cubic-bezier(.4, 0, .2, 1);--ease-spring: cubic-bezier(.175, .885, .32, 1.275);--dur: .25s;--progress: 0%}*{box-sizing:border-box}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#94a3b84d;border-radius:9999px;transition:background .2s 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var(--line);border-radius:var(--r-3xl);box-shadow:var(--shadow-xl);overflow:hidden}.login-hero{padding:var(--sp-8) var(--sp-8) var(--sp-10) var(--sp-8);color:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-start;background-image:radial-gradient(circle at 75% 15%,#1e2823 0%,transparent 50%),radial-gradient(circle at 25% 10%,#fbbf24 0%,transparent 55%),radial-gradient(circle at 20% 50%,#ff5e00 0%,transparent 60%),radial-gradient(circle at 85% 90%,#0d0502 0%,transparent 50%),linear-gradient(135deg,#c2410c,#3d1400);border-right:1px solid rgba(255,255,255,.08)}.login-hero:after{content:"";position:absolute;inset:0;z-index:1;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.95' numOctaves='1' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");opacity:.12;mix-blend-mode:overlay;pointer-events:none}.login-hero .brand,.login-hero h1,.login-hero p{position:relative;z-index:2}.login-hero .brand{margin-bottom:auto}.brand{display:flex;align-items:center;gap:var(--sp-3);font-weight:800}.brand-logo{width:42px;height:42px;border-radius:var(--r-lg);background:var(--blue);display:grid;place-items:center;color:#fff;font-weight:800}.brand-logo-img{width:auto;height:28px;object-fit:contain;flex-shrink:0}.login-hero .brand-logo-img{height:48px}.login-hero .brand span{display:none!important}.login-hero h1{font-family:Plus Jakarta Sans,sans-serif;font-size:var(--fs-2xl);line-height:var(--lh-snug);margin:var(--sp-6) 0 var(--sp-2);letter-spacing:-.5px;color:#fff;font-weight:600}.login-hero p{font-family:Plus Jakarta 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input{border-radius:var(--r-full)!important;padding:14px 24px!important;font-size:1rem!important;background:#e2e8f0!important;border:1px solid transparent!important;color:#0f172a!important;transition:all var(--dur) var(--ease-out)!important}.login-form .field input:focus,.login-form .password-input-wrapper input:focus{border-color:#3b82f6!important;background:#fff!important;box-shadow:0 0 0 4px #3b82f626!important}#loginBtn,#forgotBtn,#recoveryBtn{border-radius:var(--r-full)!important;padding:15px 30px!important;font-size:1.0625rem!important;height:auto!important;box-shadow:0 8px 24px #0000001f!important}.login-footer-row{display:flex;justify-content:space-between;align-items:center;margin-top:24px;width:100%}.login-footer-help-btn{font-size:.8rem!important;color:#64748b!important;background:none!important;border:none!important;cursor:pointer!important;padding:0!important;font-weight:500!important;text-decoration:none!important;transition:color var(--dur) var(--ease-out);display:inline-flex!important;align-items:center!important;gap:4px!important}.login-footer-help-btn:hover{color:#0f172a!important}.login-footer-help-btn i{font-size:.95rem;color:#64748b;transition:color var(--dur) var(--ease-out)}.login-footer-help-btn:hover i{color:#0f172a}.login-footer-forgot-btn{font-size:.8rem!important;color:#3b82f6!important;background:none!important;border:none!important;cursor:pointer!important;padding:0!important;font-weight:600!important;text-decoration:none!important;transition:color var(--dur) var(--ease-out)}.login-footer-forgot-btn:hover{color:#1d4ed8!important;text-decoration:underline!important}.login-help-btn{font-size:12px!important;color:var(--muted)!important;background:none!important;border:none!important;cursor:pointer!important;padding:0!important;display:inline-flex!important;align-items:center!important;gap:4px!important;font-weight:500!important;text-decoration:none!important;transition:color var(--dur) var(--ease-out)}.login-help-btn:hover{color:var(--text)!important;text-decoration:underline!important}.login-help-btn i{font-size:14px;color:var(--muted);transition:color var(--dur) var(--ease-out)}.login-help-btn:hover i{color:var(--text)}.login-wa-btn{display:inline-flex!important;align-items:center!important;justify-content:center!important;gap:var(--sp-2)!important;font-size:13.5px!important;font-weight:600!important;color:#15803d!important;background-color:#ffffffd9!important;border:1px solid rgba(22,163,74,.25)!important;border-radius:var(--r-full)!important;padding:10px 20px!important;text-decoration:none!important;white-space:nowrap!important;backdrop-filter:blur(8px)!important;box-shadow:0 4px 14px #0000000a!important;transition:background-color var(--dur) var(--ease-out),border-color var(--dur) var(--ease-out),box-shadow var(--dur) var(--ease-out),transform var(--dur) var(--ease-out)!important}.login-wa-btn:hover{background-color:#fff!important;border-color:#16a34a73!important;box-shadow:0 6px 20px #16a34a1f!important;transform:translateY(-2px)!important}.login-wa-btn i{font-size:19px!important;color:#25d366!important}#loginForm .field{margin-bottom:20px!important}.login-form .login-privacy-note{margin-top:16px!important}.field{display:flex;flex-direction:column;gap:var(--sp-2);margin-bottom:var(--sp-4)}.field label{font-size:var(--fs-sm);font-weight:700;color:#334155}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-lg);padding:var(--sp-3) var(--sp-4);background:#fff;outline:none;transition:border-color var(--dur) var(--ease-out),box-shadow var(--dur) var(--ease-out)}.field textarea{min-height:90px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px #18181b0f}.password-input-wrapper{position:relative;width:100%;display:flex;align-items:center}.password-input-wrapper input{padding-right:48px!important}.password-toggle-btn{position:absolute;right:var(--sp-4);background:none;border:none;color:var(--muted);cursor:pointer;padding:var(--sp-1);display:inline-flex;align-items:center;justify-content:center;font-size:1.25rem;transition:color var(--dur) var(--ease-out);outline:none;z-index:10}.password-toggle-btn:hover{color:var(--text)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);border-radius:var(--r-full);padding:var(--sp-2) var(--sp-4);font-weight:700;transition:transform var(--dur) var(--ease-out),box-shadow var(--dur) var(--ease-out),color var(--dur) var(--ease-out),opacity var(--dur) var(--ease-out),border-color var(--dur) var(--ease-out),background-color var(--dur) var(--ease-out)}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 4px 12px #00000014}@media(hover:hover){.btn-primary:hover{transform:translateY(-1.5px);background:var(--btn-hover-black);box-shadow:0 6px 16px #0000001f}.btn-ghost:hover{background:var(--soft);border-color:var(--line)}.btn-danger:hover{background:#fee2e2}.btn-success:hover{transform:translateY(-1.5px);box-shadow:0 8px 20px #16a34a26}}.btn-ghost{background:#f8fafc;color:#0f172a;border:1px solid var(--line);transition:background var(--dur) var(--ease-out),border-color var(--dur) var(--ease-out),color var(--dur) var(--ease-out),transform var(--dur) var(--ease-out),box-shadow var(--dur) var(--ease-out)}.btn-danger{background:#fee2e2;color:#991b1b}.btn-success{background:linear-gradient(135deg,var(--success),#059669);color:#fff;box-shadow:0 8px 20px #16a34a2e}.btn-small{padding:var(--sp-2) var(--sp-3);border-radius:var(--r-md);font-size:var(--fs-xs)}.btn:disabled,.btn[disabled]{opacity:.45;pointer-events:none;cursor:not-allowed;background:var(--soft);color:var(--muted-light);border-color:var(--line);box-shadow:none!important}.badge{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-full);padding:5px 10px;font-size:var(--fs-xs);font-weight:700;background:var(--soft);color:var(--muted)}.badge.green{background:#dcfce7;color:#166534}.badge.gray{background:var(--soft);color:var(--muted)}.layout{display:grid;grid-template-columns:280px 1fr;height:100vh;height:100dvh;overflow:hidden;transition:grid-template-columns var(--dur) var(--ease-out)}.layout.course-mode{grid-template-columns:1fr!important}html:has(.layout.course-mode),body:has(.layout.course-mode){background:radial-gradient(circle at top right,rgba(167,243,208,.08),transparent 45%),var(--bg)!important}.sidebar{background:var(--card);backdrop-filter:blur(18px);border-right:1px solid var(--line);padding:var(--sp-5);position:sticky;top:0;height:100dvh;align-self:start;display:flex;flex-direction:column;overflow-y:auto;overflow-x:hidden;transition:all var(--dur) var(--ease-out);width:280px;opacity:1;visibility:visible;z-index:20}.layout.course-mode .sidebar{display:none!important}.side-brand{display:flex;align-items:center;gap:var(--sp-3);margin-bottom:var(--sp-5)}.side-brand .brand-logo-img{width:auto;height:48px;object-fit:contain;flex-shrink:0}.side-brand div{display:none!important}.user-card{margin-top:auto;background:#f8fafc;border:1px solid var(--line);border-radius:var(--r-xl);padding:var(--sp-4)}.nav-btn{width:100%;display:flex;align-items:center;gap:var(--sp-3);padding:var(--sp-3);border-radius:var(--r-lg);background:transparent;color:#334155;text-align:left;font-weight:700;margin-bottom:var(--sp-1);transition:all var(--dur) var(--ease-out)}.nav-btn:hover,.nav-btn.active{background:var(--soft);color:var(--text)}.main{min-width:0;height:100%;overflow-y:auto;display:flex;flex-direction:column}.topbar{height:auto;flex-shrink:0;background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;border-bottom:none;display:flex;align-items:center;justify-content:center;padding:var(--sp-7) 0 0 0;position:relative;z-index:30}.topbar-inner{display:flex;align-items:center;justify-content:space-between;width:100%;height:auto;max-width:1440px;padding:0 var(--sp-7)}.topbar h1{font-family:Plus Jakarta Sans,sans-serif;font-size:1.75rem;margin:0;font-weight:800;letter-spacing:-.8px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:50vw}.top-actions{display:flex;align-items:center;gap:var(--sp-3)}.content{width:100%;padding:var(--sp-7);max-width:1440px;margin:0 auto}.hero{background-image:var(--noise-url),var(--topo-url),radial-gradient(circle at 50% -20%,#94a3b8 0%,transparent 60%),radial-gradient(circle at -10% 50%,#f97316 0%,transparent 65%),radial-gradient(circle at 110% 50%,#fef08a 0%,transparent 65%),radial-gradient(circle at 50% 120%,#1c1917 0%,transparent 75%),linear-gradient(135deg,#ea580c,#7c2d12);background-blend-mode:overlay,normal,normal,normal,normal,normal,normal;color:#fff;isolation:isolate;border:none;border-radius:var(--r-xl);padding:var(--sp-7);display:flex;justify-content:space-between;align-items:center;gap:var(--sp-5);box-shadow:var(--shadow-md);margin-bottom:var(--sp-6)}.hero .badge{background:#fff3;color:#fff}.hero h2{font-size:var(--fs-2xl);line-height:var(--lh-tight);margin:0 0 var(--sp-3);letter-spacing:-.7px;font-weight:850;color:#fff}.hero p{color:#ffffffd9;max-width:650px;margin:0;line-height:var(--lh-relaxed);font-size:var(--fs-base)}.hero-announcement-card{background:#fff!important;border:1px solid rgba(0,0,0,.06)!important;border-radius:var(--r-xl);padding:16px var(--sp-5);cursor:pointer;transition:all var(--dur) var(--ease-out);display:flex;flex-direction:column;gap:6px;color:#0f172a!important;max-width:420px;width:100%;box-shadow:0 4px 12px #0000000d}.hero-announcement-card p{color:#475569!important}.hero-announcement-card:hover{background:#f8fafc!important;border-color:#0000001a!important;transform:translateY(-3px);box-shadow:0 8px 24px #0000001f}.hero-announcement-card:active{transform:translateY(-1px)}.success-title{font-size:26px;font-weight:800;letter-spacing:-.6px;color:var(--text);line-height:1.3;margin:0 0 12px;text-align:center!important}.success-desc{font-size:16.5px;color:var(--muted);line-height:1.6;max-width:480px;text-align:center!important;margin:0 auto!important}.hero-link-hover{color:#ffffffb3!important}.hero-link-hover:hover{color:#fff!important}.hero-link-hover:hover i{transform:translate(4px)}.hero-link-hover i{transition:transform var(--dur) var(--ease-out)}.spark{width:100px;height:100px;border-radius:var(--r-3xl);background:#ffffff26;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2);position:relative;flex-shrink:0}.spark:before{content:"";position:absolute;inset:18px;border:12px solid #ffffff;border-top-color:transparent;border-radius:50%;transform:rotate(45deg)}.toolbar{display:flex;gap:var(--sp-3);align-items:center;justify-content:space-between;margin-bottom:var(--sp-5);flex-wrap:wrap}.toolbar .btn{height:44px!important;font-size:var(--fs-sm)!important;padding:0 var(--sp-5)!important;border-radius:var(--r-full)!important;box-sizing:border-box!important}.search{position:relative;min-width:0;flex:1;max-width:520px}.search i{position:absolute;left:var(--sp-4);top:50%;transform:translateY(-50%);color:var(--muted)}.search input{width:100%;height:44px!important;padding:0 var(--sp-4) 0 var(--sp-8)!important;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;outline:none;transition:border-color var(--dur) var(--ease-out),box-shadow var(--dur) var(--ease-out);box-sizing:border-box!important}.search input:focus{border-color:var(--blue);box-shadow:0 0 0 4px #18181b0f}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--sp-5)}.card{background:#ffffffeb;border:1px solid var(--line);border-radius:var(--r-2xl);box-shadow:var(--shadow-sm);overflow:hidden;transition:all var(--dur) var(--ease-out)}@media(hover:hover){.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#cbd5e1}.card:hover .edit-overlay{opacity:1}}:root{--noise-url: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E")}.course-cover{height:172px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;text-align:center;padding:var(--sp-5);color:#fff;isolation:isolate}.course-cover-overlay-text{font-family:Lora,Georgia,serif;font-size:1.3rem;font-weight:500;line-height:var(--lh-tight);color:#fff;z-index:2;text-shadow:0 2px 8px rgba(0,0,0,.12);max-width:90%;pointer-events:none;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.gradient-flow{background-image:var(--noise-url),radial-gradient(circle at 15% 15%,#a78bfa 0%,transparent 60%),radial-gradient(circle at 85% 15%,#c084fc 0%,transparent 50%),radial-gradient(circle at 85% 85%,#fb923c 0%,transparent 60%),radial-gradient(circle at 15% 85%,#f472b6 0%,transparent 65%),linear-gradient(135deg,#818cf8,#f472b6)!important;background-blend-mode:overlay,normal,normal,normal,normal,normal}.gradient-gov{background-image:var(--noise-url),var(--topo-url),radial-gradient(circle at 50% -10%,#94a3b8 0%,transparent 60%),radial-gradient(circle at -10% 50%,#f97316 0%,transparent 65%),radial-gradient(circle at 110% 50%,#fef08a 0%,transparent 65%),radial-gradient(circle at 50% 110%,#1c1917 0%,transparent 70%),linear-gradient(135deg,#ea580c,#7c2d12)!important;background-blend-mode:overlay,normal,normal,normal,normal,normal,normal}.gradient-express{background-image:var(--noise-url),radial-gradient(circle at 30% 10%,#bae6fd 0%,transparent 65%),radial-gradient(circle at 80% 20%,#a5f3fc 0%,transparent 55%),radial-gradient(circle at 50% 100%,#14532d 0%,transparent 75%),radial-gradient(circle at 0% 90%,#166534 0%,transparent 60%),linear-gradient(135deg,#38bdf8,#15803d)!important;background-blend-mode:overlay,normal,normal,normal,normal,normal}.course-cover .edit-overlay{position:absolute;top:var(--sp-3);right:var(--sp-3);opacity:0;z-index:3;transition:opacity var(--dur) var(--ease-out)}@media(hover:none){.course-cover .edit-overlay{opacity:1}}.card-body{padding:var(--sp-5)}.card h3{margin:var(--sp-3) 0 var(--sp-2);font-size:var(--fs-lg);font-weight:800;line-height:var(--lh-snug);letter-spacing:-.3px;color:var(--text)}.card p{margin:0 0 var(--sp-4);color:var(--muted);line-height:var(--lh-normal);font-size:var(--fs-sm)}.card-actions{display:flex;gap:var(--sp-2);align-items:center}.card-actions .btn{height:44px;font-size:var(--fs-sm);border-radius:var(--r-xl)}.card-actions .btn.btn-primary{flex:1;white-space:nowrap;padding:0 var(--sp-4)}.card-actions .btn:not(.btn-primary){flex:0 0 auto;width:44px;padding:0;display:inline-flex;align-items:center;justify-content:center}.btn-telegram{background:#08c;border:1px solid #0088cc;color:#fff;box-shadow:0 10px 22px #0088cc2e}.btn-telegram i,.btn-telegram span{color:inherit}@media(hover:hover){.btn-telegram:hover{background:#0077b3;border-color:#0077b3;color:#fff;transform:translateY(-1px)}}.btn-telegram:disabled{opacity:.72;cursor:wait;transform:none}.btn-telegram-card{width:auto;height:44px;margin-top:0;border-radius:var(--r-xl);font-weight:700;background:#eef8ff;border-color:#0088cc38;color:#0369a1;box-shadow:none}.card-actions.card-actions-with-telegram .btn.btn-primary{flex:1.35 1 0;min-width:0;width:auto;padding:0 var(--sp-3);white-space:nowrap}.card-actions.card-actions-with-telegram .btn.btn-telegram-card{flex:1 1 0;min-width:0;width:auto;padding:0 var(--sp-3);white-space:nowrap;display:inline-flex;align-items:center;justify-content:center}.card-actions.card-actions-with-telegram .btn.btn-telegram-card:hover{background:#e0f2fe;border-color:#0088cc57;color:#075985;box-shadow:0 6px 14px 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var(--ease-out);color:var(--blue)}@media(hover:hover){.group-title:hover{background:var(--soft);color:var(--text)}}.group-title i{transition:transform .2s var(--ease-out);color:#94a3b8;font-size:13px}.group-title.collapsed i{transform:rotate(-90deg)}.group-modules{transition:max-height .3s var(--ease-out),opacity .2s;max-height:1000px;overflow:hidden;opacity:1}.group-modules.collapsed{max-height:0px!important;opacity:0;pointer-events:none}.module-item{width:100%;display:flex;align-items:flex-start;text-align:left;border:none;gap:var(--sp-4);padding:var(--sp-4);border-radius:var(--r-xl);cursor:pointer;text-decoration:none;background:transparent;color:var(--muted);margin-bottom:2px;transition:all .2s var(--ease-out)}.module-item:hover{background:var(--soft);color:var(--text)}.module-item.active{background:var(--line)!important;color:var(--text)!important}.module-item i{font-size:20px;flex-shrink:0;margin-top:1px;color:var(--muted-light);transition:color var(--dur) 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var(--line);border-radius:var(--r-2xl);overflow:auto;box-shadow:var(--shadow-md)}table{width:100%;border-collapse:collapse;min-width:780px}th,td{padding:var(--sp-4);border-bottom:1px solid var(--line);text-align:left;font-size:var(--fs-sm);vertical-align:top}th{background:#f8fafc;font-size:var(--fs-xs);text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}.actions{display:flex;gap:var(--sp-2);flex-wrap:wrap}.modal{position:fixed;inset:0;background:#0f172a66;display:grid;place-items:center;padding:var(--sp-4);z-index:200;backdrop-filter:blur(4px)}.modal-card{width:min(620px,100%);max-height:92vh;overflow:auto;background:#fff;border-radius:var(--r-2xl);padding:var(--sp-6);box-shadow:var(--shadow-xl)}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--sp-4)}.modal-head h3{margin:0;font-size:var(--fs-xl)}.form-grid{display:grid;grid-template-columns:1fr 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var(--ease-out)}.student-entry:hover{background:var(--soft);border-color:var(--line)}.student-entry.active{background:var(--line);border-color:var(--muted)}.student-entry-name{font-weight:700;font-size:var(--fs-sm);color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.student-entry.active .student-entry-name{color:#0f172a}.student-entry-email{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:var(--sp-2)}.progress-mini-header{display:flex;align-items:center;justify-content:space-between;font-size:10px;font-weight:600;color:var(--muted);margin-bottom:3px}.progress-mini-pct{color:var(--blue)}.progress-mini-pct.complete{color:var(--success)}.progress-mini-track{height:4px;background:var(--soft);border-radius:var(--r-full);overflow:hidden}.progress-mini-bar{width:var(--progress, 0%);height:100%;background:linear-gradient(90deg,var(--blue),var(--indigo));border-radius:var(--r-full);transition:width .5s var(--ease-out)}.progress-mini-bar.complete{background:var(--success)}.sidebar-search{position:relative;margin-bottom:var(--sp-3)}.sidebar-search i{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--muted)}.sidebar-search input{width:100%;padding:var(--sp-2) var(--sp-3) var(--sp-2) 32px;border:1px solid var(--line);border-radius:var(--r-md);font-size:var(--fs-xs);background:#ffffffb3;outline:none;transition:border-color var(--dur) var(--ease-out);font-family:inherit}.sidebar-search input:focus{border-color:var(--blue);box-shadow:0 0 0 3px #18181b0f}.section-pad{padding:var(--sp-2) var(--sp-3)}.loading-center{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--sp-8) var(--sp-5);color:var(--muted)}.loading-center i{font-size:28px;color:var(--blue);margin-bottom:var(--sp-3)}.loading-center span{font-size:var(--fs-xs)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--sp-10) var(--sp-6);text-align:center;color:var(--muted)}.empty-state i{font-size:56px;opacity:.15;margin-bottom:var(--sp-4);display:block}.empty-state h3{font-size:var(--fs-lg);font-weight:700;color:var(--text);margin:0 0 var(--sp-2)}.empty-state p{font-size:var(--fs-sm);line-height:var(--lh-relaxed);max-width:360px;margin:0 0 var(--sp-5);color:var(--muted)}.module-item.locked{opacity:.6;cursor:not-allowed;position:relative}.module-item-content{flex:1;min-width:0}.module-item-title{white-space:normal;word-break:break-word;line-height:var(--lh-relaxed);color:inherit;font-weight:450;font-size:var(--fs-base)}.module-item:hover .module-item-title{color:var(--text)}.module-item.active .module-item-title{color:var(--text);font-weight:600}.module-item.locked 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rotate(45deg);width:8px;height:8px;background:#dc2626}.agreement-widget{margin-bottom:var(--sp-4);padding:var(--sp-6);border-radius:var(--r-xl);background:var(--card);backdrop-filter:blur(8px);border:1px solid var(--line);box-shadow:0 8px 32px #00000008;display:flex;flex-direction:column;align-items:flex-start;width:100%}.agreement-check-row{display:flex;align-items:flex-start;gap:var(--sp-3);width:100%}.agreement-confirmed-icon{display:flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:#e2fbe8;color:var(--success);flex-shrink:0;margin-top:2px}.agreement-confirmed-icon i{font-size:18px;font-weight:700}.agreement-confirmed-text{font-size:var(--fs-sm);font-weight:600;color:#1e293b;line-height:var(--lh-normal);text-align:left;margin:0}.agreement-check-label{display:flex;align-items:flex-start;gap:var(--sp-3);cursor:pointer;width:100%;user-select:none;text-align:left}.agreement-check-label 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#22c55e66!important}.btn-error-state{background:var(--danger)!important;color:#fff!important;border-color:var(--danger)!important}.btn-cancel-state{background:#64748b!important;color:#fff!important;border-color:#64748b!important;transform:scale(.98)}.btn-detect-auto{border:none;background:none;color:var(--blue);font-size:11px;cursor:pointer;display:inline-flex;align-items:center;gap:3px;padding:0;font-weight:600;font-family:inherit;transition:color var(--dur) var(--ease-out)}.btn-detect-auto:hover{color:#0f76a8}.btn-detect-auto i{font-size:13px}.field-duration{margin-bottom:var(--sp-5);max-width:280px}.field-label-row{display:flex;justify-content:space-between;align-items:center;width:100%}.content-divider{border:none;border-top:1px solid var(--line);margin:var(--sp-5) 0}.module-nav-footer{margin-top:var(--sp-8);display:flex;flex-direction:column;width:100%}.module-nav-buttons{display:flex;justify-content:space-between;gap:var(--sp-3);width:100%}.editor-panel-container{width:100%;max-width:960px;margin:0 auto}.data-table-outer{overflow-x:auto}.data-table-wrap{background:var(--card);backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--shadow-md);overflow:hidden}.data-table-header{padding:var(--sp-4) var(--sp-5);border-bottom:1px solid var(--line);font-weight:700;color:var(--text)}.data-table{width:100%;border-collapse:collapse;text-align:left;font-size:var(--fs-sm);min-width:600px}.data-table thead tr{background:#f1f5f980;border-bottom:1px solid var(--line)}.data-table th{padding:var(--sp-3) var(--sp-5);color:var(--muted);font-weight:700;font-size:var(--fs-xs);text-transform:uppercase;letter-spacing:.04em}.data-table td{padding:14px var(--sp-5);border-bottom:1px solid 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var(--r-2xl);overflow:hidden}.html-sandbox-frame{width:100%;min-height:120px;height:400px;border:none;display:block;background:transparent;color-scheme:light;transition:height .25s ease}.announcement-modal-wrapper{padding:var(--sp-2);display:flex;flex-direction:column;gap:var(--sp-4)}.announcement-modal-header{display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--sp-3);border-bottom:1px solid var(--line);padding-bottom:var(--sp-4)}.announcement-icon-wrap{width:64px;height:64px;background:linear-gradient(135deg,#fef3c7,#fde68a);color:#d97706;border-radius:var(--r-full);display:inline-flex;align-items:center;justify-content:center;box-shadow:0 4px 12px #d9770626}.announcement-bell-icon{font-size:32px}.announcement-modal-title{margin:0;font-size:var(--fs-xl);font-weight:800;color:var(--text);line-height:1.3}.announcement-modal-body{max-height:380px;overflow-y:auto;padding:var(--sp-2);font-size:15px;line-height:1.6;color:var(--text)}.announcement-modal-body 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