@font-face{font-family:Plus Jakarta Sans;font-style:normal;font-weight:200 800;font-display:swap;src:url(../media/0b1dc8ddaa74ba49-s.0e__wj8580tc5.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:Plus Jakarta Sans;font-style:normal;font-weight:200 800;font-display:swap;src:url(../media/e629b5bc06499d58-s.10u7vx61f1ie7.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:Plus Jakarta Sans;font-style:normal;font-weight:200 800;font-display:swap;src:url(../media/1a099d89ee94ee96-s.35a5cae5tspm2.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-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Plus Jakarta Sans;font-style:normal;font-weight:200 800;font-display:swap;src:url(../media/fba5a26ea33df6a3-s.p.18rizl4rsrl42.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:Plus Jakarta Sans Fallback;src:local(Arial);ascent-override:98.88%;descent-override:21.15%;line-gap-override:0.0%;size-adjust:104.98%}.DpEtSa_className{font-family:Plus Jakarta Sans,Plus Jakarta Sans Fallback;font-style:normal}.DpEtSa_variable{--font-sans:"Plus Jakarta Sans", "Plus Jakarta Sans Fallback"}
@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/e390973e931a41c5-s.0rgnxg2b64rzs.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:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/59b15b4bcd7b1eb5-s.2vemzm0itqzfy.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/e532fa1b9921e1cd-s.3cb5lpr2l6xud.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:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/2fe89d53234c61d4-s.1u30mmyq6lnsd.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-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/99e609270109b47d-s.p.40sczeszzbjw1.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:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/5e05ae5b48faa55e-s.1yd4_i3e35931.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:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/a7afbb44bec2bb18-s.1qc6dx89jd2qv.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/02263ebadd758ea4-s.29yke99gs9qpn.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:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/68757d6cddeff913-s.1i-sca43-qwng.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-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/effe91970fc4db64-s.p.0oace-s_gkfks.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:IBM Plex Mono;font-style:normal;font-weight:600;font-display:swap;src:url(../media/6ff74e33ebd7bca3-s.352ti9pm7m6qh.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:IBM Plex Mono;font-style:normal;font-weight:600;font-display:swap;src:url(../media/1a69062cfe6f77f8-s.0o-3_g79811ob.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:600;font-display:swap;src:url(../media/9a4838fcda0d1bca-s.0ngr-xkgqz1kf.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:IBM Plex Mono;font-style:normal;font-weight:600;font-display:swap;src:url(../media/2e95a7d252b9825a-s.15orukf5wyxb5.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-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:600;font-display:swap;src:url(../media/23b7a97ae3b5c134-s.p.226pwps5o-gq_.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:IBM Plex Mono Fallback;src:local(Arial);ascent-override:76.16%;descent-override:20.43%;line-gap-override:0.0%;size-adjust:134.59%}.v8ILfq_className{font-family:IBM Plex Mono,IBM Plex Mono Fallback;font-style:normal}.v8ILfq_variable{--font-mono:"IBM Plex Mono", "IBM Plex Mono Fallback"}
:root{--white:#fff;--pulse:#2563eb;--system:#10347e;--medium:#4679e5;--mid-light:#a2bcf1;--soft:#d0ddf9;--ice:#e8eefc;--ink:#1a1a2e;--muted:#6b7280;--separator:#d1d5db;--red:#dc2626;--amber:#f59e0b;--green:#16a34a;--bg:#f6f8fd;--surface:var(--white);--line:color-mix(in srgb, var(--separator) 65%, white);--line-strong:var(--separator);--red-bg:color-mix(in srgb, var(--red) 9%, white);--amber-bg:color-mix(in srgb, var(--amber) 14%, white);--amber-ink:#8a5300;--green-bg:color-mix(in srgb, var(--green) 10%, white);--radius:14px;--radius-sm:10px;--shadow-sm:0 1px 2px #10347e0f;--shadow:0 1px 2px #10347e0d, 0 8px 24px -12px #10347e2e;--sans:var(--font-sans), "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--mono:var(--font-mono), "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font:15px/1.55 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility}a{color:var(--pulse);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{letter-spacing:-.015em;margin:0;line-height:1.2}h1{font-size:30px;font-weight:750}h2{font-size:20px;font-weight:700}h3{font-size:16px;font-weight:650}p{margin:0}svg{flex-shrink:0}.container{max-width:1160px;margin:0 auto;padding:0 24px}.muted{color:var(--muted)}.small{font-size:13px}.mono{font-family:var(--mono)}.stack>*+*{margin-top:12px}.row{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.spacer{flex:1}.eyebrow{font:500 12px/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--pulse)}.lockup{color:var(--ink);white-space:nowrap;align-items:center;gap:12px;display:inline-flex}.lockup:hover{text-decoration:none}.tkxel{letter-spacing:-.02em;color:var(--pulse);font-size:21px;font-style:italic;font-weight:800;line-height:1}.lockup-divider{background:var(--separator);width:1px;height:22px}.wordmark{letter-spacing:-.02em;font-size:17px;font-weight:750}.wordmark b{color:var(--pulse);font-weight:800}.topbar{background:var(--surface);border-bottom:1px solid var(--line);z-index:20;position:sticky;top:0}.topbar .container{align-items:center;gap:28px;height:64px;display:flex}.nav{gap:2px;display:flex}.nav a{color:var(--muted);white-space:nowrap;border-radius:999px;padding:7px 12px;font-size:14px;font-weight:600}.nav a:hover{color:var(--ink);background:var(--bg);text-decoration:none}.nav a.active{color:var(--pulse);background:var(--ice)}.who{align-items:center;gap:10px;min-width:0;display:flex}.avatar{background:var(--ice);width:34px;height:34px;color:var(--system);font:600 13px/1 var(--mono);border-radius:50%;flex-shrink:0;place-items:center;display:grid}.who-text{min-width:0;line-height:1.25}.who-name{text-overflow:ellipsis;white-space:nowrap;max-width:200px;font-size:14px;font-weight:650;overflow:hidden}.who-mail{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;max-width:200px;font-size:12px;overflow:hidden}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px}.page{padding-top:32px;padding-bottom:72px}.page-head{flex-wrap:wrap;align-items:flex-end;gap:16px;margin-bottom:24px;display:flex}.page-head p{max-width:720px;margin-top:6px}.section-title{align-items:baseline;gap:12px;margin-bottom:14px;display:flex}.btn{border:1px solid var(--line-strong);background:var(--surface);height:40px;color:var(--ink);font:inherit;cursor:pointer;white-space:nowrap;border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-size:14px;font-weight:650;transition:background-color .15s,border-color .15s,box-shadow .15s;display:inline-flex}.btn:hover{background:var(--bg);border-color:var(--mid-light);text-decoration:none}.btn:focus-visible{outline:3px solid color-mix(in srgb, var(--pulse) 35%, transparent);outline-offset:2px}.btn:disabled{opacity:.5;cursor:default}.btn.primary{background:var(--pulse);border-color:var(--pulse);color:var(--white)}.btn.primary:hover{background:#1d55d6;border-color:#1d55d6}.btn.light{background:var(--white);border-color:var(--white);color:var(--system)}.btn.light:hover{background:var(--ice)}.btn.ghost{color:var(--muted);background:0 0;border-color:#0000}.btn.ghost:hover{background:var(--bg);color:var(--ink)}.btn.danger{color:var(--red)}.btn.danger:hover{border-color:color-mix(in srgb, var(--red) 40%, white);background:var(--red-bg)}.btn.sm{height:32px;padding:0 12px;font-size:13px}.btn.icon{width:40px;padding:0}.btn.sm.icon{width:32px}input[type=text],input[type=email],input[type=number],input[type=date],select,textarea{border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);width:100%;height:42px;color:var(--ink);font:inherit;padding:0 14px;font-size:14px}input[type=file]{font:inherit;width:100%;font-size:13px}textarea{resize:vertical;height:auto;min-height:110px;padding:10px 14px;line-height:1.5}input:focus,select:focus,textarea:focus{outline:3px solid color-mix(in srgb, var(--pulse) 25%, transparent);border-color:var(--pulse)}label{margin-bottom:6px;font-size:13px;font-weight:650;display:block}.field+.field{margin-top:14px}.hint{color:var(--muted);margin-top:6px;font-size:12px}.badge{font:500 11.5px/1.6 var(--mono);letter-spacing:.02em;background:var(--bg);color:var(--muted);border:1px solid var(--line);white-space:nowrap;border-radius:999px;align-items:center;gap:5px;padding:2px 9px;display:inline-flex}.badge.blue{background:var(--ice);color:var(--pulse);border-color:var(--soft)}.badge.ok{background:var(--green-bg);color:var(--green);border-color:color-mix(in srgb, var(--green) 25%, white)}.badge.danger{background:var(--red-bg);color:var(--red);border-color:color-mix(in srgb, var(--red) 25%, white)}.badge.warn{background:var(--amber-bg);color:var(--amber-ink);border-color:color-mix(in srgb, var(--amber) 35%, white)}.notice{border-radius:var(--radius-sm);border:1px solid #0000;padding:12px 16px;font-size:14px}.notice.danger{background:var(--red-bg);color:#9f1c1c;border-color:color-mix(in srgb, var(--red) 20%, white)}.notice.ok{background:var(--green-bg);color:#116c33;border-color:color-mix(in srgb, var(--green) 20%, white)}.notice.warn{background:var(--amber-bg);color:var(--amber-ink);border-color:color-mix(in srgb, var(--amber) 30%, white)}.notice.info{background:var(--ice);color:var(--system);border-color:var(--soft)}.progress{background:var(--ice);border-radius:999px;height:6px;overflow:hidden}.progress>span{border-radius:inherit;background:var(--pulse);height:100%;display:block}.progress.done>span{background:var(--green)}table.data{border-collapse:collapse;width:100%;font-size:14px}table.data th{text-align:left;font:500 11.5px/1.3 var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--muted);border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--bg) 60%, white);padding:12px 14px}table.data td{border-bottom:1px solid var(--line);vertical-align:middle;padding:12px 14px}table.data tr:last-child td{border-bottom:0}.table-wrap{overflow-x:auto}.card.flush{padding:0;overflow:hidden}.tabs{background:var(--bg);border:1px solid var(--line);border-radius:999px;flex-wrap:wrap;gap:2px;padding:3px;display:inline-flex}.tabs a{color:var(--muted);border-radius:999px;padding:5px 12px;font-size:13px;font-weight:600}.tabs a:hover{color:var(--ink);text-decoration:none}.tabs a.active{background:var(--surface);color:var(--pulse);box-shadow:var(--shadow-sm)}.auth{background:var(--surface);grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);min-height:100vh;display:grid}.auth-brand{color:var(--white);background:linear-gradient(135deg, var(--system) 0%, #163f9c 45%, var(--pulse) 100%);flex-direction:column;padding:44px 56px;display:flex;position:relative;overflow:hidden}.auth-brand .tkxel{color:var(--white);font-size:26px}.auth-brand-body{max-width:520px;margin:auto 0;padding:48px 0;position:relative}.auth-brand .eyebrow{color:var(--soft)}.auth-word{letter-spacing:-.035em;margin:18px 0 20px;font-size:clamp(44px,5.6vw,72px);font-weight:800;line-height:1}.auth-word b{color:var(--mid-light);font-weight:800}.auth-lede{color:color-mix(in srgb, var(--soft) 92%, white);max-width:440px;font-size:17px;line-height:1.6}.auth-areas{max-width:520px;color:var(--soft);grid-template-columns:1fr 1fr;gap:10px 28px;font-size:13.5px;display:grid;position:relative}.auth-areas span{font-family:var(--mono);color:var(--mid-light);margin-right:8px}.orbit{pointer-events:none;border:1px solid #ffffff24;border-radius:50%;position:absolute}.orbit.o1{width:620px;height:620px;top:-180px;right:-260px}.orbit.o2{border-color:#ffffff1a;width:420px;height:420px;top:-80px;right:-160px}.orbit.o3{background:radial-gradient(circle,#a2bcf147,#0000 70%);border:0;width:260px;height:260px;bottom:-120px;right:-40px}.auth-panel{justify-content:center;align-items:center;padding:48px 24px;display:flex}.auth-form{width:100%;max-width:380px}.auth-form h1{font-size:28px}.auth-form>p{margin-top:8px}.google-btn{border:1px solid var(--line-strong);background:var(--white);width:100%;height:50px;font:650 15px/1 var(--sans);color:var(--ink);box-shadow:var(--shadow-sm);border-radius:999px;justify-content:center;align-items:center;gap:12px;margin-top:28px;display:flex}.google-btn:hover{border-color:var(--mid-light);background:color-mix(in srgb, var(--ice) 35%, white);text-decoration:none}.auth-foot{border-top:1px solid var(--line);color:var(--muted);gap:10px;margin-top:28px;padding-top:20px;font-size:12.5px;line-height:1.5;display:flex}.auth-foot svg{color:var(--pulse);margin-top:1px}.hero{color:var(--white);background:linear-gradient(120deg, var(--system) 0%, #17429f 50%, var(--pulse) 100%);position:relative;overflow:hidden}.hero .container{grid-template-columns:minmax(0,1fr) 360px;align-items:center;gap:40px;padding-top:44px;padding-bottom:44px;display:grid;position:relative}.hero .eyebrow{color:var(--soft)}.hero h1{margin:12px 0 10px;font-size:36px}.hero p{color:color-mix(in srgb, var(--soft) 90%, white);max-width:560px;font-size:16px}.hero-card{border-radius:var(--radius);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#ffffff1a;border:1px solid #ffffff2e;padding:22px}.hero-card .big{letter-spacing:-.03em;font-size:44px;font-weight:800;line-height:1}.hero-card .progress{background:#ffffff2e;margin:14px 0 18px}.hero-card .progress>span{background:var(--white)}.hero-card .btn{width:100%}.hero-next{color:var(--soft);text-overflow:ellipsis;white-space:nowrap;margin-top:10px;font-size:12.5px;overflow:hidden}.area{margin-top:44px}.area-head{align-items:flex-start;gap:16px;margin-bottom:18px;display:flex}.area-num{font:600 12px/1 var(--mono);color:var(--pulse);background:var(--ice);border:1px solid var(--soft);white-space:nowrap;border-radius:999px;margin-top:3px;padding:6px 10px}.area-head p{margin-top:4px;font-size:14px}.module-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px;display:grid}.module-card{border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);color:var(--ink);flex-direction:column;gap:10px;padding:22px;transition:border-color .15s,box-shadow .15s,transform .15s;display:flex;position:relative}a.module-card:hover{border-color:var(--mid-light);box-shadow:var(--shadow);text-decoration:none;transform:translateY(-1px)}.module-card .top{justify-content:space-between;align-items:center;gap:8px;display:flex}.module-card h3{font-size:17px;line-height:1.35}.module-card .desc{color:var(--muted);-webkit-line-clamp:3;-webkit-box-orient:vertical;font-size:13.5px;display:-webkit-box;overflow:hidden}.module-card .foot{margin-top:auto;padding-top:8px}.module-card .foot-meta{font:500 12px/1 var(--mono);color:var(--muted);justify-content:space-between;margin-top:10px;display:flex}.module-card.empty{background:color-mix(in srgb, var(--bg) 70%, white);box-shadow:none}.module-card.empty h3{color:color-mix(in srgb, var(--ink) 75%, white)}.later-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;display:grid}.later{border-radius:var(--radius);border:1px dashed var(--line-strong);background:color-mix(in srgb, var(--bg) 50%, white);padding:20px}.later h3{margin:10px 0 6px;font-size:15px}.later p{color:var(--muted);font-size:13px}.confidential{border-radius:var(--radius-sm);background:var(--surface);border:1px solid var(--line);color:var(--muted);align-items:flex-start;gap:10px;margin-top:56px;padding:14px 18px;font-size:13px;display:flex}.confidential svg{color:var(--pulse);margin-top:2px}.module-hero{background:linear-gradient(180deg, var(--ice) 0%, var(--bg) 100%);border-bottom:1px solid var(--line)}.module-hero .container{padding-top:28px;padding-bottom:32px}.crumbs{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px;font-size:13px;display:flex}.crumbs a{color:var(--muted);font-weight:600}.module-hero h1{max-width:860px;margin:10px 0}.module-hero .lede{color:var(--muted);max-width:760px;font-size:15.5px}.module-progress{flex-wrap:wrap;align-items:center;gap:20px;margin-top:22px;display:flex}.module-progress .progress{background:var(--soft);width:260px;max-width:100%;height:8px}.lesson{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden}.lesson+.lesson{margin-top:14px}.lesson-head{border-bottom:1px solid var(--line);align-items:center;gap:14px;padding:16px 20px;display:flex}.lesson-num{width:34px;height:34px;font:600 13px/1 var(--mono);background:var(--ice);color:var(--pulse);border-radius:10px;flex-shrink:0;place-items:center;display:grid}.lesson-num.done{background:var(--green-bg);color:var(--green)}.material-row{color:var(--ink);border-top:1px solid var(--line);align-items:center;gap:14px;padding:14px 20px;transition:background-color .12s;display:flex}.lesson-head+.material-row{border-top:0}.lesson-edit>summary{cursor:pointer;color:var(--pulse);padding:10px 20px;font-size:13px;font-weight:600}.lesson-edit[open]>summary{padding-bottom:4px}.lesson-edit>form{padding:8px 20px 18px}.module-edit{margin-top:16px}.material-row:hover{background:color-mix(in srgb, var(--ice) 45%, white);text-decoration:none}.kind-icon{background:var(--bg);width:38px;height:38px;color:var(--system);border:1px solid var(--line);border-radius:10px;flex-shrink:0;place-items:center;display:grid}.material-row .title{font-size:14.5px;font-weight:650}.material-row .meta{font:500 12px/1.4 var(--mono);color:var(--muted);margin-top:2px}.material-row .state{color:var(--pulse);white-space:nowrap;align-items:center;gap:6px;font-size:13px;font-weight:600;display:flex}.material-row .state.done{color:var(--green)}.empty-state{text-align:center;color:var(--muted);padding:48px 24px}.empty-state svg{color:var(--mid-light);margin-bottom:10px}.resources{margin-top:40px}.resources-head{margin-bottom:14px}.resources-head p{max-width:720px;margin-top:4px}.res-group{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden}.res-group+.res-group{margin-top:14px}.res-source{color:var(--ink);background:color-mix(in srgb, var(--ice) 40%, white);border-bottom:1px solid var(--line);align-items:center;gap:18px;padding:16px 20px;display:flex}.res-source:hover{background:color-mix(in srgb, var(--ice) 70%, white);text-decoration:none}.res-source h3{margin-top:4px;font-size:16px}.res-source .state{color:var(--pulse);white-space:nowrap;align-items:center;gap:6px;font-size:13px;font-weight:600;display:flex}.res-row{color:var(--ink);align-items:center;gap:14px;padding:12px 20px;transition:background-color .12s;display:flex}.res-row+.res-row{border-top:1px solid var(--line)}.res-row:hover{background:color-mix(in srgb, var(--ice) 45%, white);text-decoration:none}.res-row .title{font-size:14.5px;font-weight:650}.res-row .meta{font:500 12px/1.4 var(--mono);color:var(--muted);margin-top:3px}.res-row .state{color:var(--pulse);white-space:nowrap;align-items:center;gap:6px;font-size:13px;font-weight:600;display:flex}.res-desc{color:var(--muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-top:3px;font-size:13px;display:-webkit-box;overflow:hidden}.res-thumb{aspect-ratio:40/21;object-fit:cover;border:1px solid var(--line);background:var(--bg);border-radius:8px;flex-shrink:0;width:112px}.res-thumb.lg{width:168px}.viewer-page{background:var(--bg);flex-direction:column;height:100vh;display:flex}.viewer-bar{background:var(--surface);border-bottom:1px solid var(--line);align-items:center;gap:14px;min-height:60px;padding:10px 16px;font-size:14px;display:flex}.viewer-title{min-width:0}.viewer-title .t{white-space:nowrap;text-overflow:ellipsis;font-weight:700;overflow:hidden}.viewer-title .s{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:12.5px;overflow:hidden}.viewer-stage{background:color-mix(in srgb, var(--ice) 55%, var(--bg));flex:1;min-height:0;position:relative;overflow:hidden}.viewer-stage:fullscreen{background:var(--ink)}.deck-frame{background:#fff;border:0;width:100%;height:100%;position:absolute;inset:0}.page-img{object-fit:contain;pointer-events:none;background:#fff;max-width:calc(100% - 32px);max-height:calc(100% - 32px);margin:auto;position:absolute;inset:16px;box-shadow:0 2px 6px #10347e14,0 18px 40px -20px #10347e59}.viewer-stage:fullscreen .page-img{max-width:100%;max-height:100%;box-shadow:none;inset:0}.page-nav{font:500 13px/1 var(--mono);color:var(--muted);align-items:center;gap:8px;display:flex}.video-el{background:#000;width:100%;height:100%;position:absolute;inset:0}.wm-layer{pointer-events:none;position:absolute;inset:0}.stage-msg{text-align:center;color:var(--muted);place-items:center;padding:32px;display:grid;position:absolute;inset:0}@media (max-width:960px){.auth{grid-template-columns:1fr}.auth-brand{padding:28px 24px 32px}.auth-brand-body{padding:28px 0 8px}.auth-areas{display:none}.hero .container{grid-template-columns:1fr;gap:24px}}@media (max-width:720px){.container{padding:0 16px}.topbar .container{flex-wrap:wrap;gap:12px;height:auto;min-height:60px;padding-top:10px;padding-bottom:10px}.nav{order:3;width:100%;overflow-x:auto}.who-text,.lockup-divider,.wordmark{display:none}.hero h1{font-size:28px}.module-grid{grid-template-columns:1fr}.res-thumb{width:72px}.res-thumb.lg{width:96px}.res-row,.res-source{gap:12px;padding:12px 14px}.viewer-bar{flex-wrap:wrap}.hide-sm{display:none!important}}@media print{body>*{display:none!important}body:before{content:"Printing and saving as PDF are turned off for conFiDEnce material.";color:#1a1a2e;padding:48px;font:500 16px/1.5 system-ui,sans-serif;display:block}}