@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/2c55a0e60120577a-s.0-dom-5bn10r2.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/9c72aa0f40e4eef8-s.p.1y4-pdgsjb-pw.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/ad66f9afd8947f86-s.3lvt2whj97whp.woff2)format("woff2");unicode-range:U+1F??}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/5476f68d60460930-s.2uwcyprjm3xu3.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/2bbe8d2671613f1f-s.0k62hbripvv8p.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/1bffadaabf893a1e-s.3-6t-g6q0vh0a.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/83afe278b6a6bb3c-s.p.2bn3s6zvc0dyp.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Inter Fallback;src:local(Arial);ascent-override:90.44%;descent-override:22.52%;line-gap-override:0.0%;size-adjust:107.12%}.inter_9b9db241-module__sLJoNW__className{font-family:Inter,Inter Fallback;font-style:normal}.inter_9b9db241-module__sLJoNW__variable{--font-inter:"Inter", "Inter Fallback"}
:root{--bg:#f2fbf7;--surface:#fff;--ink:#1f2c29;--muted:#6c7a76;--faint:#97a5a0;--border:#e7efeb;--border-strong:#d6e3dd;--accent:#2fbf9b;--accent-deep:#1e9e80;--accent-press:#178a70;--accent-soft:#e2f6ef;--accent-ink:#146b57;--blue:#3c7dbb;--amber:#c68a2e;--amber-soft:#f6ecd8;--danger:#d9534f;--danger-soft:#fbe9e8;--sans:var(--font-inter), system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--r-xl:22px;--r-lg:16px;--r-md:12px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;min-height:100vh;line-height:1.5}a{color:inherit;text-decoration:none}button{font-family:var(--sans)}.container{max-width:640px;margin:0 auto;padding:0 18px}.app-header{z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);background:#f2fbf7e6;position:sticky;top:0}.app-header .inner{justify-content:space-between;align-items:center;height:60px;display:flex}.wordmark{align-items:center;gap:9px;display:flex}.wordmark .glyph{background:var(--accent);border-radius:8px;flex:none;width:26px;height:26px;position:relative}.wordmark .glyph:before,.wordmark .glyph:after{content:"";background:#fff;border-radius:2px;height:3px;position:absolute;left:6px;right:6px}.wordmark .glyph:before{top:8px}.wordmark .glyph:after{bottom:8px;box-shadow:0 -5px #fff}.wordmark b{letter-spacing:-.4px;color:var(--accent-deep);font-size:1.05rem;font-weight:800}.nav-header{align-items:center;gap:8px;height:60px;display:flex}.back-btn{cursor:pointer;width:40px;height:40px;color:var(--ink);background:0 0;border:none;border-radius:12px;justify-content:center;align-items:center;margin-left:-8px;transition:background .15s;display:flex}.back-btn:hover{background:#e4f0eb}.nav-title{letter-spacing:-.2px;white-space:nowrap;text-overflow:ellipsis;font-size:1rem;font-weight:700;overflow:hidden}.logout-btn{border:1.5px solid var(--border-strong);cursor:pointer;color:var(--muted);background:#fff;border-radius:20px;padding:8px 14px;font-size:.82rem;font-weight:600;transition:all .15s}.logout-btn:hover{border-color:var(--accent);color:var(--ink)}main.page{padding:4px 0 48px}.greeting{letter-spacing:-.5px;margin:20px 0 3px;font-size:1.55rem;font-weight:800}.greeting-sub{color:var(--muted);margin:0 0 22px;font-size:.92rem}.eyebrow{text-transform:uppercase;letter-spacing:.9px;color:var(--faint);margin:0 0 13px;font-size:.72rem;font-weight:700}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);margin-bottom:15px;transition:transform .14s,box-shadow .2s;display:block;overflow:hidden;box-shadow:0 4px 14px -8px #1c5a4824}.card:hover{transform:translateY(-3px);box-shadow:0 16px 30px -14px #1c5a484d}.card .cover{align-items:flex-start;height:108px;padding:13px;display:flex;position:relative}.cover-0{background:linear-gradient(140deg,#38c6a2 0%,#2aa6b9 100%)}.cover-1{background:linear-gradient(140deg,#5b8fd4 0%,#6e6fcb 100%)}.cover-2{background:linear-gradient(140deg,#e0964a 0%,#d97b3c 100%)}.card .cover .deco{border:2px solid #ffffff2e;border-radius:50%;width:120px;height:120px;position:absolute;bottom:-28px;right:-20px}.chip{color:var(--accent-ink);background:#ffffffeb;border-radius:20px;align-items:center;gap:5px;padding:5px 11px;font-size:.7rem;font-weight:700;display:inline-flex}.card-body{padding:15px 17px 17px}.card-body h3{letter-spacing:-.4px;margin:0 0 5px;font-size:1.15rem;font-weight:800}.card-body .desc{color:var(--muted);margin:0 0 14px;font-size:.85rem;line-height:1.45}.card-foot{align-items:center;gap:12px;display:flex}.count{color:var(--faint);align-items:center;gap:6px;font-size:.8rem;font-weight:600;display:flex}.pill{background:var(--accent);color:#fff;border-radius:22px;margin-left:auto;padding:9px 15px;font-size:.82rem;font-weight:700}.course-cover{border-radius:var(--r-xl);background:linear-gradient(140deg,#38c6a2 0%,#2aa6bb 100%);flex-direction:column;justify-content:flex-end;height:138px;margin:16px 0 0;padding:18px;display:flex;position:relative;overflow:hidden}.course-cover .deco{border:2px solid #ffffff2e;border-radius:50%;width:150px;height:150px;position:absolute;top:-40px;right:-30px}.course-cover .kicker{text-transform:uppercase;letter-spacing:1px;color:#ffffffd9;z-index:2;margin:0 0 5px;font-size:.72rem;font-weight:700}.course-cover h1{letter-spacing:-.4px;color:#fff;z-index:2;margin:0;font-size:1.7rem;font-weight:800}.course-intro{padding:16px 2px 6px}.course-intro p{color:var(--muted);margin:0 0 14px;font-size:.92rem;line-height:1.55}.stat{color:var(--accent-ink);background:var(--accent-soft);border-radius:22px;align-items:center;gap:7px;padding:7px 14px;font-size:.82rem;font-weight:700;display:inline-flex}.lessons{margin-top:14px}.lesson-row{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);align-items:center;gap:14px;margin-bottom:10px;padding:14px;transition:transform .12s,box-shadow .18s,border-color .18s;display:flex;box-shadow:0 2px 8px -6px #1c5a481f}.lesson-row:hover{border-color:var(--border-strong);transform:translate(2px);box-shadow:0 8px 18px -12px #1c5a484d}.lesson-row .num{background:var(--accent-soft);width:38px;height:38px;color:var(--accent-ink);border-radius:12px;flex:none;justify-content:center;align-items:center;font-size:1rem;font-weight:800;display:flex}.lesson-row .body{flex:1;min-width:0}.lesson-row .body .t{letter-spacing:-.2px;margin:0 0 3px;font-size:1rem;font-weight:700;display:block}.lesson-row .body .s{color:var(--faint);margin:0;font-size:.77rem;display:block}.lesson-row .chev{color:var(--accent);flex:none}.lead{padding:18px 0 4px}.lead .kicker{text-transform:uppercase;letter-spacing:1px;color:var(--accent-deep);margin:0 0 8px;font-size:.72rem;font-weight:700}.lead h1{letter-spacing:-.6px;margin:0;font-size:1.5rem;font-weight:800;line-height:1.16}.materials{flex-direction:column;gap:22px;padding:20px 0 34px;display:flex}.m-label{align-items:center;gap:8px;margin-bottom:10px;display:flex}.m-label .tag{text-transform:uppercase;letter-spacing:.5px;border-radius:7px;padding:4px 10px;font-size:.66rem;font-weight:800}.tag.video{background:var(--amber-soft);color:var(--amber)}.tag.text{background:var(--accent-soft);color:var(--accent-ink)}.tag.file{color:var(--blue);background:#e9eef6}.m-label .m-title{color:var(--muted);font-size:.82rem;font-weight:700}.video-card{border-radius:var(--r-lg);background:linear-gradient(140deg,#2aa6bb,#1e7e8e);justify-content:center;align-items:center;height:178px;display:flex;position:relative;overflow:hidden}.video-card .play{width:62px;height:62px;color:var(--accent-press);background:#fff;border-radius:50%;justify-content:center;align-items:center;transition:transform .15s;display:flex;box-shadow:0 10px 26px #0000004d}.video-card:hover .play{transform:scale(1.08)}.video-card .src{color:#ffffffe6;font-size:.7rem;font-weight:700;position:absolute;bottom:12px;left:12px}.text-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:17px 18px}.text-card :where(p){color:#33403c;margin:0 0 12px;font-size:.96rem;line-height:1.62}.text-card :where(p):last-child{margin:0}.text-card b{color:var(--accent-ink);background:var(--accent-soft);border-radius:5px;padding:1px 6px;font-weight:600}.file-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);align-items:center;gap:14px;padding:15px 16px;transition:border-color .15s,box-shadow .15s;display:flex}.file-card:hover{border-color:var(--border-strong);box-shadow:0 8px 18px -12px #1c5a484d}.file-card .fi{width:46px;height:46px;color:var(--blue);background:#e9eef6;border-radius:12px;flex:none;justify-content:center;align-items:center;font-size:.7rem;font-weight:800;display:flex}.file-card .fn{margin:0 0 2px;font-size:.93rem;font-weight:700}.file-card .fs{color:var(--faint);margin:0;font-size:.77rem}.file-card .dl{background:var(--accent-soft);width:38px;height:38px;color:var(--accent-deep);border-radius:50%;flex:none;justify-content:center;align-items:center;margin-left:auto;display:flex}.empty{text-align:center;flex-direction:column;align-items:center;padding:48px 24px;display:flex}.empty .circle{background:var(--accent-soft);width:72px;height:72px;color:var(--accent-deep);border-radius:50%;justify-content:center;align-items:center;margin-bottom:18px;display:flex}.empty h3{letter-spacing:-.4px;margin:0 0 8px;font-size:1.2rem;font-weight:800}.empty p{color:var(--muted);max-width:300px;margin:0;font-size:.9rem;line-height:1.55}.login-screen{flex-direction:column;justify-content:center;max-width:440px;min-height:100vh;margin:0 auto;padding:0 28px;display:flex}.login-screen .brand{align-items:center;gap:11px;margin-bottom:36px;display:flex}.login-screen .brand .glyph{background:var(--accent);border-radius:12px;width:40px;height:40px;position:relative}.login-screen .brand .glyph:before,.login-screen .brand .glyph:after{content:"";background:#fff;border-radius:2px;height:4px;position:absolute;left:9px;right:9px}.login-screen .brand .glyph:before{top:12px}.login-screen .brand .glyph:after{bottom:12px;box-shadow:0 -8px #fff}.login-screen .brand b{letter-spacing:-.6px;color:var(--accent-deep);font-size:1.6rem;font-weight:800}.login-screen h1{letter-spacing:-.7px;margin:0 0 9px;font-size:1.7rem;font-weight:800;line-height:1.14}.login-screen h1 .hl{color:var(--accent-deep)}.login-screen .sub{color:var(--muted);margin:0 0 28px;font-size:.92rem;line-height:1.5}.field{margin-bottom:15px}.field label{text-transform:uppercase;letter-spacing:.5px;color:var(--faint);margin-bottom:7px;font-size:.72rem;font-weight:700;display:block}.field input{border:1.5px solid var(--border-strong);background:var(--surface);border-radius:var(--r-md);width:100%;font-size:1rem;font-family:var(--sans);color:var(--ink);padding:14px 15px;transition:border-color .15s,box-shadow .15s}.field input::placeholder{color:#aab8b2}.field input:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);outline:none}.field.invalid input{border-color:var(--danger);box-shadow:0 0 0 4px var(--danger-soft)}.form-error{background:var(--danger-soft);color:var(--danger);border-radius:var(--r-md);align-items:center;gap:8px;margin-bottom:14px;padding:11px 13px;font-size:.82rem;font-weight:600;display:flex}.btn{cursor:pointer;background:var(--accent);color:#fff;letter-spacing:-.2px;border-radius:var(--r-md);border:none;justify-content:center;align-items:center;gap:9px;width:100%;margin-top:6px;padding:15px;font-size:1rem;font-weight:700;transition:background .15s,transform 80ms;display:flex;box-shadow:0 8px 20px -8px #2fbf9b8c}.btn:hover{background:var(--accent-press)}.btn:active{transform:scale(.985)}.btn:disabled{opacity:.8;cursor:default}.spinner{border:2.5px solid #fff6;border-top-color:#fff;border-radius:50%;width:17px;height:17px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.login-alt{text-align:center;margin-top:20px}.login-alt a{color:var(--muted);font-size:.9rem;font-weight:600;text-decoration:none}.login-alt a:hover{color:var(--accent-deep);text-decoration:underline}.login-screen a.btn{text-decoration:none}.hint{color:var(--faint);margin-top:18px;font-size:.78rem;line-height:1.5}.hint code{color:var(--accent-ink);background:#eaf0ec;border-radius:5px;padding:1px 6px;font-family:ui-monospace,Menlo,monospace;font-size:.9em}.demo-logins{border-top:1px solid var(--border);flex-direction:column;gap:9px;margin-top:22px;padding-top:18px;display:flex}.demo-title{text-transform:uppercase;letter-spacing:.6px;color:var(--faint);margin:0 0 3px;font-size:.72rem;font-weight:700}.demo-btn{border:1.5px solid var(--border-strong);cursor:pointer;width:100%;font-family:var(--sans);color:var(--ink);border-radius:var(--r-md);background:#fff;padding:12px 15px;font-size:.92rem;font-weight:700;transition:all .15s}.demo-btn:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-ink)}.demo-btn:disabled{opacity:.6;cursor:default}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}.admin{max-width:720px}.admin-h1{letter-spacing:-.5px;margin:22px 0 4px;font-size:1.55rem;font-weight:800}.admin-sub{color:var(--muted);margin:0 0 22px;font-size:.9rem;line-height:1.5}.admin-back{color:var(--accent-deep);margin:18px 0 6px;font-size:.85rem;font-weight:600;display:inline-block}.admin-back:hover{text-decoration:underline}.admin-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);margin-bottom:14px;padding:16px 17px;box-shadow:0 2px 10px -8px #1c5a4824}.admin-card-title{text-transform:uppercase;letter-spacing:.7px;color:var(--faint);margin:0 0 12px;font-size:.72rem;font-weight:800}.inp{border:1.5px solid var(--border-strong);border-radius:var(--r-md);width:100%;font-size:.95rem;font-family:var(--sans);color:var(--ink);background:#fff;margin-bottom:10px;padding:11px 13px}.inp:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);outline:none}.ta{resize:vertical;min-height:84px;line-height:1.5}.lbl{text-transform:uppercase;letter-spacing:.5px;color:var(--faint);margin:4px 0 6px;font-size:.7rem;font-weight:700;display:block}.btn-inline{width:auto;margin-top:2px;padding:11px 18px;font-size:.9rem;display:inline-flex}.btn-sm{padding:9px 14px;font-size:.85rem}.admin-row{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);align-items:center;gap:12px;margin-bottom:9px;padding:14px 16px;transition:border-color .15s,transform .12s;display:flex;box-shadow:0 2px 8px -6px #1c5a481f}.admin-row:hover{border-color:var(--accent);transform:translate(2px)}.admin-row-body{flex:1}.admin-row-title{letter-spacing:-.2px;font-weight:700;display:block}.admin-row-sub{color:var(--faint);margin-top:2px;font-size:.78rem;display:block}.admin-row .chev{color:var(--accent);font-size:1.3rem;font-weight:700}.admin-empty{color:var(--muted);padding:8px 0;font-size:.9rem}.admin-hint{color:var(--muted);margin:0 0 12px;font-size:.83rem}.lesson-block{padding-bottom:14px}.lesson-head{align-items:center;gap:11px;margin-bottom:12px;display:flex}.lesson-head .num{background:var(--accent-soft);width:32px;height:32px;color:var(--accent-ink);border-radius:10px;flex:none;justify-content:center;align-items:center;font-weight:800;display:flex}.lesson-title{letter-spacing:-.2px;flex:1;font-weight:700}.rename-form{flex:1;align-items:center;gap:6px;min-width:0;display:flex}.rename-input{min-width:0;font-family:var(--sans);letter-spacing:-.2px;color:var(--ink);background:0 0;border:1.5px solid #0000;border-radius:8px;flex:1;padding:6px 8px;font-size:.95rem;font-weight:700}.rename-input:hover{border-color:var(--border)}.rename-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:#fff;outline:none;font-weight:500}.mat-item .rename-input{font-size:.86rem;font-weight:600}.save-inline{border:1.5px solid var(--border-strong);cursor:pointer;width:30px;height:30px;color:var(--accent-deep);background:#fff;border-radius:8px;flex:none;justify-content:center;align-items:center;font-size:.9rem;font-weight:800;transition:all .14s;display:flex}.save-inline:hover{background:var(--accent);border-color:var(--accent);color:#fff}.tools{flex:none;align-items:center;gap:4px;display:flex}.tool-form{display:inline-block}.tool-btn{border:1.5px solid var(--border-strong);cursor:pointer;color:var(--muted);background:#fff;border-radius:8px;padding:5px 9px;font-size:.75rem;font-weight:700;transition:all .14s}.tool-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent-ink)}.tool-btn:disabled{opacity:.35;cursor:default}.tool-btn.danger:hover:not(:disabled){border-color:var(--danger);color:var(--danger);background:var(--danger-soft)}.mat-list{flex-direction:column;gap:7px;margin:0 0 12px;padding:0;list-style:none;display:flex}.mat-item{border:1px solid var(--border);background:#f7fbf9;border-radius:10px;align-items:center;gap:10px;padding:8px 11px;display:flex}.mat-item .tag{text-transform:uppercase;letter-spacing:.4px;border-radius:6px;flex:none;padding:3px 8px;font-size:.6rem;font-weight:800}.mat-name{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:.86rem;font-weight:600;overflow:hidden}.add-mat{border-top:1px dashed var(--border-strong);padding-top:12px}.add-mat-label{color:var(--muted);margin:0 0 8px;font-size:.8rem;font-weight:700}.type-choice{flex-wrap:wrap;gap:7px;margin-bottom:11px;display:flex}.type-btn{border:1.5px solid var(--border-strong);cursor:pointer;font-family:var(--sans);color:var(--muted);background:#fff;border-radius:20px;padding:8px 13px;font-size:.85rem;font-weight:700;transition:all .14s}.type-btn:hover{border-color:var(--accent);color:var(--accent-ink)}.type-btn.on{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 6px 14px -6px #2fbf9b8c}.add-mat-row{gap:8px;display:flex}.add-mat-row .sel{flex:none;width:120px}.add-mat-row .inp{flex:1}.sel{cursor:pointer}.mat-file{margin-bottom:12px}.mat-file input[type=file]{max-width:100%;margin-bottom:6px;font-size:.85rem}.mat-msg{border-radius:10px;margin:0 0 10px;padding:9px 12px;font-size:.9rem;font-weight:700}.mat-ok{color:#0f6b4f;background:#2fbf9b24}.mat-err{color:#b3261e;background:#b3261e1a}.btn[disabled]{opacity:.65;cursor:default;box-shadow:none}.admin-nav{border-bottom:1px solid var(--border);background:#fff}.admin-nav .inner{gap:8px;padding-top:8px;padding-bottom:8px;display:flex}.admin-nav a{color:var(--muted);border-radius:18px;padding:7px 14px;font-size:.92rem;font-weight:700;text-decoration:none;transition:all .14s}.admin-nav a:hover{background:var(--accent-soft,#2fbf9b1f);color:var(--accent-ink)}.pw-row{align-items:stretch;gap:8px;margin-bottom:4px;display:flex}.pw-row .inp{flex:1;margin-bottom:0}.btn-ghost{border:1.5px solid var(--border-strong);cursor:pointer;font-family:var(--sans);color:var(--muted);white-space:nowrap;background:#fff;border-radius:12px;flex:none;padding:0 14px;font-size:.85rem;font-weight:700}.btn-ghost:hover{border-color:var(--accent);color:var(--accent-ink)}.cred-box{border:1.5px solid var(--accent);background:#2fbf9b1a;border-radius:12px;margin:4px 0 12px;padding:12px 14px}.cred-title{color:#0f6b4f;margin:0 0 8px;font-size:.92rem;font-weight:700}.cred-line{margin:3px 0;font-size:.95rem}.cred-line b{-webkit-user-select:all;user-select:all}.student-row{align-items:center}.student-row.off{opacity:.55}.off-tag{color:var(--danger,#b3261e);font-weight:600}.enroll-row{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:9px 0;display:flex}.enroll-row:last-child{border-bottom:none}.enroll-name{flex:1;font-size:.9rem;font-weight:600}.enroll-login{color:var(--faint);font-size:.74rem;font-weight:400;display:block}.enroll-btn{border:1.5px solid var(--border-strong);cursor:pointer;color:var(--muted);background:#fff;border-radius:20px;padding:8px 14px;font-size:.8rem;font-weight:700;transition:all .14s}.enroll-btn:hover{border-color:var(--accent)}.enroll-btn.on{background:var(--accent-soft);border-color:var(--accent-soft);color:var(--accent-ink)}.danger-zone{border-top:1px solid var(--border);margin-top:30px;padding-top:18px}.btn-danger{border:1.5px solid var(--danger-soft);background:var(--danger-soft);color:var(--danger);cursor:pointer;border-radius:var(--r-md);padding:10px 16px;font-size:.85rem;font-weight:700;transition:all .14s}.btn-danger:hover{background:var(--danger);color:#fff;border-color:var(--danger)}.locked-note{color:var(--muted);margin:0 0 14px;font-size:.82rem;line-height:1.5}.card.locked{cursor:default}.card.locked:hover{transform:none;box-shadow:0 4px 14px -8px #1c5a4824}.card.locked .cover{filter:grayscale(.55)}.chip.lock{color:#fff;background:#1f2c29c7}.pill-locked{color:var(--muted);background:#eef1ef;border-radius:22px;align-items:center;gap:5px;margin-left:auto;padding:9px 15px;font-size:.82rem;font-weight:700;display:inline-flex}.tag.audio{color:#6b4fb3;background:#efe9f8}.audio-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px 16px 14px}.audio-card audio{width:100%}.speed-row{align-items:center;gap:8px;margin-top:12px;display:flex}.speed-label{color:var(--faint);margin-right:2px;font-size:.75rem;font-weight:600}.speed-btn{border:1.5px solid var(--border-strong);cursor:pointer;font-family:var(--sans);color:var(--muted);font-variant-numeric:tabular-nums;background:#fff;border-radius:18px;padding:6px 12px;font-size:.82rem;font-weight:700;transition:all .14s}.speed-btn:hover{border-color:var(--accent);color:var(--accent-ink)}.speed-btn.on{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 6px 14px -6px #2fbf9b8c}.cover{background-position:50%;background-size:cover}.banner-scrim{z-index:1;background:linear-gradient(#0000 45%,#0000004d 100%);position:absolute;inset:0}.course-cover .kicker,.course-cover h1{z-index:2;position:relative}.banner-caption{z-index:2;color:#fff;letter-spacing:-.3px;text-shadow:0 1px 8px #0000008c;max-width:82%;font-size:1.05rem;font-weight:800;position:absolute;bottom:12px;left:14px}.banner-preview{border-radius:var(--r-md);background-color:var(--accent-soft);background-position:50%;background-size:cover;align-items:flex-end;height:130px;margin-bottom:12px;padding:12px;display:flex;position:relative;overflow:hidden}.banner-preview .banner-caption{position:static}.banner-tabs{border:1.5px solid var(--border-strong);border-radius:10px;margin-bottom:14px;display:inline-flex;overflow:hidden}.banner-tabs button{cursor:pointer;font-family:var(--sans);color:var(--muted);background:#fff;border:none;padding:8px 16px;font-size:.85rem;font-weight:700}.banner-tabs button.on{background:var(--accent);color:#fff}.grad-swatches{flex-wrap:wrap;gap:9px;margin-bottom:14px;display:flex}.swatch{cursor:pointer;width:48px;height:34px;box-shadow:0 0 0 1px var(--border-strong);background-size:cover;border:2px solid #0000;border-radius:9px;padding:0}.swatch.on{border-color:var(--accent-deep);box-shadow:0 0 0 2px var(--accent)}.img-upload{margin-bottom:14px}.img-upload input[type=file]{max-width:100%;margin-bottom:6px;font-size:.85rem}.switch-row{color:var(--ink);cursor:pointer;align-items:center;gap:9px;margin:4px 0 12px;font-size:.88rem;font-weight:600;display:flex}.switch-row input{width:17px;height:17px;accent-color:var(--accent)}