:root{
  --bg:#f5f7fb;
  --surface:#ffffff;
  --surface-2:#eef2f8;
  --surface-3:#e5ebf5;
  --text:#152033;
  --muted:#65728a;
  --line:#dce3ee;
  --brand:#203a8f;
  --brand-strong:#152a66;
  --brand-soft:#e9eeff;
  --accent:#008f95;
  --success:#1c7d5d;
  --danger:#b53f4b;
  --shadow-sm:0 10px 28px rgba(31,50,92,.08);
  --shadow:0 24px 70px rgba(31,50,92,.12);
  --radius-xs:10px;
  --radius-sm:14px;
  --radius:20px;
  --radius-lg:28px;
  --max:1200px;
  --s1:4px;
  --s2:8px;
  --s3:12px;
  --s4:16px;
  --s5:24px;
  --s6:32px;
  --s7:48px;
  --s8:64px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.55}
body.dark{--bg:#0d1422;--surface:#131d2e;--surface-2:#1a2740;--surface-3:#23324d;--text:#f2f5fb;--muted:#abb7cc;--line:#2a3953;--brand:#97a9ff;--brand-strong:#c2ccff;--brand-soft:#1b2850;--accent:#4bc9c7;--success:#66d4a8;--danger:#ff9ba6;--shadow-sm:0 10px 28px rgba(0,0,0,.18);--shadow:0 24px 70px rgba(0,0,0,.28)}
body,button,input,select,textarea{font-family:inherit}
a{color:inherit;text-decoration:none}
button{font:inherit}
img{max-width:100%;display:block}
button,a,input,select,textarea{outline:none}
:focus-visible{outline:3px solid color-mix(in srgb,var(--brand) 35%,transparent);outline-offset:3px}
.container{width:min(calc(100% - 32px),var(--max));margin-inline:auto}
.skip-link{position:fixed;left:16px;top:10px;z-index:1000;background:var(--surface);color:var(--text);padding:10px 14px;border-radius:10px;box-shadow:var(--shadow-sm);transform:translateY(-160%)}
.skip-link:focus{transform:none}
.top-note{min-height:30px;display:flex;align-items:center;justify-content:center;gap:8px;background:#101b3a;color:#e4eaff;font-size:.78rem;padding:5px 16px;text-align:center;letter-spacing:.01em}
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid color-mix(in srgb,var(--line) 78%,transparent)}
.header-inner{min-height:74px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}
.brand-copy strong{display:block;font-weight:820;letter-spacing:-.03em;font-size:.98rem}.brand-copy small{display:block;font-weight:650;color:var(--muted);font-size:.72rem;letter-spacing:.01em;margin-top:-1px}
.brand-mark{width:40px;height:40px;border-radius:14px;background:linear-gradient(145deg,var(--brand),var(--accent));position:relative;box-shadow:0 10px 24px rgba(32,58,143,.22);flex:0 0 auto}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:999px;background:#fff;opacity:.94;width:19px;height:5px;left:10px}.brand-mark:before{top:11px;transform:rotate(32deg)}.brand-mark:after{top:23px;transform:rotate(-32deg)}
.nav{margin-left:auto;display:flex;gap:4px;align-items:center}.nav a{padding:10px 12px;border-radius:11px;color:var(--muted);font-size:.92rem;font-weight:680}.nav a:hover,.nav a.active{background:var(--surface-2);color:var(--text)}.nav-admin{border:1px solid var(--line);margin-left:4px}.nav-admin:hover{border-color:color-mix(in srgb,var(--brand) 40%,var(--line))}
.icon-btn,.menu-toggle{width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);cursor:pointer;display:grid;place-items:center;box-shadow:0 4px 12px rgba(20,32,58,.03)}
.menu-toggle{display:none;margin-left:auto;font-size:1.1rem}
.hero{padding:64px 0 36px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy-col{max-width:710px}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--brand);font-size:.78rem;font-weight:800;letter-spacing:.055em;text-transform:uppercase}.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 16%,transparent)}
h1{font-size:clamp(2.6rem,5.2vw,4.8rem);line-height:1.01;letter-spacing:-.06em;margin:20px 0 18px;max-width:790px}.hero-copy{font-size:clamp(1.03rem,1.7vw,1.2rem);color:var(--muted);max-width:660px;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 17px;border-radius:13px;border:1px solid transparent;font-weight:760;cursor:pointer;transition:transform .18s ease,border-color .18s ease,background .18s ease,color .18s ease}.btn.primary{background:var(--brand);color:#fff;box-shadow:0 12px 28px color-mix(in srgb,var(--brand) 22%,transparent)}.btn.primary:hover{transform:translateY(-1px);background:var(--brand-strong)}.dark .btn.primary:hover{color:#0d1422}.btn.secondary{background:var(--surface);border-color:var(--line);color:var(--text)}.btn.secondary:hover,.btn.ghost:hover{border-color:color-mix(in srgb,var(--brand) 45%,var(--line));color:var(--brand)}.btn.ghost{background:transparent;border-color:var(--line);color:var(--muted)}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px;color:var(--muted);font-size:.84rem}.hero-meta span{display:flex;align-items:center;gap:7px}.hero-meta b{font-size:.72rem;color:var(--brand);background:var(--brand-soft);padding:3px 6px;border-radius:7px}
.hero-visual{position:relative;min-height:450px}.protein-card{position:absolute;inset:0;border-radius:32px;overflow:hidden;background:radial-gradient(circle at 25% 18%,#dbe3ff 0,#eef2ff 38%,#cbd5f5 100%);box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.78)}.dark .protein-card{background:radial-gradient(circle at 25% 18%,#1a2b56 0,#101a31 60%,#0d1325 100%);border-color:#263455}.protein-card img{width:100%;height:100%;object-fit:contain;padding:30px;mix-blend-mode:multiply;opacity:.94}.dark .protein-card img{mix-blend-mode:screen;opacity:.7}.floating-card{position:absolute;background:color-mix(in srgb,var(--surface) 94%,transparent);backdrop-filter:blur(12px);border:1px solid color-mix(in srgb,var(--line) 82%,transparent);box-shadow:0 16px 42px rgba(23,32,51,.12);border-radius:17px;padding:14px 16px;max-width:240px}.floating-label{display:block;color:var(--brand)!important;font-size:.68rem!important;font-weight:800!important;text-transform:uppercase;letter-spacing:.07em;margin-bottom:4px!important}.floating-card strong{display:block;font-size:.9rem}.floating-card span{display:block;color:var(--muted);font-size:.78rem;margin-top:2px}.fc1{left:-22px;bottom:28px}
.section{padding:52px 0}.section-tight{padding:22px 0 12px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:24px}.section h2{font-size:clamp(1.8rem,3vw,2.5rem);letter-spacing:-.045em;margin:0}.section-head p{color:var(--muted);max-width:560px;margin:0}
.quick-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm)}.quick-facts>div{background:var(--surface);padding:16px 18px}.quick-facts span{display:block;color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;font-weight:760}.quick-facts strong{display:block;margin-top:4px;font-size:.95rem;letter-spacing:-.015em}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.module{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:18px;min-height:198px;display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;position:relative;overflow:hidden}.module:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:color-mix(in srgb,var(--brand) 28%,var(--line))}.module.current{border-color:color-mix(in srgb,var(--brand) 42%,var(--line));background:linear-gradient(160deg,var(--surface),color-mix(in srgb,var(--brand-soft) 65%,var(--surface)))}.module-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.module-num{width:34px;height:34px;border-radius:10px;background:var(--surface-2);display:grid;place-items:center;color:var(--brand);font-weight:850;font-size:.82rem}.module-badge{font-size:.67rem;text-transform:uppercase;letter-spacing:.055em;font-weight:800;padding:5px 7px;border-radius:999px;background:var(--brand-soft);color:var(--brand)}.module h3{font-size:1.02rem;line-height:1.25;margin:17px 0 8px;letter-spacing:-.02em}.module p{color:var(--muted);font-size:.84rem;margin:0 0 16px}.module .tag{margin-top:auto;color:var(--brand);font-weight:760;font-size:.81rem;display:inline-flex;align-items:center;gap:6px}.module label.tag{cursor:pointer}.module label.tag input{accent-color:var(--brand);margin:0}
.progress-wrap{margin-top:16px;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:22px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}.progress-wrap h3{margin:0 0 5px;letter-spacing:-.02em}.progress-wrap p{margin:0;color:var(--muted);font-size:.9rem}.progressbar{height:9px;border-radius:99px;background:var(--surface-2);overflow:hidden;margin-top:13px}.progressbar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--accent));border-radius:inherit;transition:width .3s ease}.progress-count{width:78px;height:78px;border-radius:50%;border:7px solid var(--surface-2);display:grid;place-items:center;font-weight:850;color:var(--brand);font-size:1rem}
.resources{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.resource{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:16px;display:grid;grid-template-columns:46px 1fr auto;gap:13px;align-items:center;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.resource:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--brand) 35%,var(--line));box-shadow:var(--shadow-sm)}.resource-icon{width:46px;height:46px;border-radius:13px;background:var(--surface-2);display:grid;place-items:center;font-size:.73rem;font-weight:850;color:var(--brand);text-align:center;padding:3px}.resource strong{display:block;font-size:.92rem}.resource span span{display:block;color:var(--muted);font-size:.78rem;margin-top:2px}.resource-arrow{color:var(--muted);font-size:1rem}
.info-band{margin:18px 0 10px;background:linear-gradient(130deg,#15275d,#203a8f 55%,#006c72);color:#fff;border-radius:28px;padding:30px;display:grid;grid-template-columns:1.35fr .65fr;gap:28px;align-items:center;overflow:hidden;position:relative}.info-band:after{content:"";position:absolute;width:280px;height:280px;border-radius:50%;border:1px solid rgba(255,255,255,.14);right:-90px;top:-95px}.info-band h2{font-size:2rem}.info-band p{color:#dce5ff;margin:8px 0 0}.lesson-kicker.light{color:#a7ece8}.coord-card{position:relative;z-index:2;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);border-radius:18px;padding:18px}.coord-avatar{width:44px;height:44px;border-radius:50%;background:#fff;color:#24367f;font-weight:850;display:grid;place-items:center;margin-bottom:12px}.coord-card span{display:block;color:#dce5ff;font-size:.8rem}.coord-card strong{display:block;font-size:.98rem;margin:2px 0 5px}
footer{padding:28px 0 40px;color:var(--muted);font-size:.8rem}.footer-inner{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}.footer-inner>div strong,.footer-inner>div span{display:block}.footer-inner>div strong{color:var(--text);font-size:.86rem}.footer-inner nav{display:flex;gap:14px;flex-wrap:wrap}.footer-inner nav a:hover{color:var(--brand)}
/* lesson */
.lesson-hero{padding:48px 0 26px}.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:.84rem;color:var(--muted);margin-bottom:18px}.crumbs a{color:var(--brand);font-weight:700}.lesson-title{display:grid;grid-template-columns:1fr 280px;gap:30px;align-items:end}.lesson-title h1{font-size:clamp(2.4rem,4.8vw,4.25rem);margin:4px 0 14px}.lesson-kicker{color:var(--brand);font-weight:800;text-transform:uppercase;font-size:.75rem;letter-spacing:.08em}.lesson-title p{color:var(--muted);font-size:1.02rem;max-width:680px;margin:0}.lesson-status{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:17px}.lesson-status small{display:block;color:var(--muted);margin-bottom:8px}.lesson-status strong{font-size:1.4rem}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:22px;padding-bottom:54px}.lesson-main,.lesson-aside{display:flex;flex-direction:column;gap:16px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:22px}.lesson-panel-featured{border-color:color-mix(in srgb,var(--brand) 32%,var(--line));box-shadow:var(--shadow-sm)}.panel h2,.panel h3{margin-top:0;letter-spacing:-.03em}.panel p{color:var(--muted)}.panel-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.panel-heading h2{margin:5px 0 0}.status-chip{white-space:nowrap;font-size:.7rem;font-weight:820;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:6px 8px}
.action-list{display:grid;gap:9px}.action-row{display:grid;grid-template-columns:40px 1fr auto;align-items:center;gap:13px;padding:13px;border:1px solid var(--line);border-radius:14px;transition:border-color .18s ease,transform .18s ease}.action-row:hover{border-color:color-mix(in srgb,var(--brand) 45%,var(--line));transform:translateX(2px)}.action-row .ico{width:40px;height:40px;border-radius:11px;background:var(--surface-2);display:grid;place-items:center;font-size:.72rem;font-weight:850;color:var(--brand)}.action-row strong{display:block;font-size:.9rem}.action-row span span{display:block;color:var(--muted);font-size:.77rem}.row-arrow{color:var(--muted)}
.checklist{display:grid;gap:9px}.checkitem{display:flex;gap:10px;align-items:flex-start;padding:12px;border-radius:13px;background:var(--bg);border:1px solid color-mix(in srgb,var(--line) 75%,transparent)}.checkitem input{margin-top:4px;accent-color:var(--brand)}.checkitem label{font-size:.88rem}.checkitem small{display:block;color:var(--muted);margin-top:2px}.completion-panel{display:flex;align-items:center;justify-content:space-between;gap:24px}.completion-panel h2{margin:4px 0 6px}.completion-panel p{margin:0}.completion-toggle{display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:var(--bg);padding:11px 13px;border-radius:13px;cursor:pointer;white-space:nowrap}.completion-toggle input{position:absolute;opacity:0;pointer-events:none}.completion-toggle span{width:20px;height:20px;border-radius:6px;border:2px solid var(--line);background:var(--surface);position:relative}.completion-toggle input:checked+span{background:var(--success);border-color:var(--success)}.completion-toggle input:checked+span:after{content:"✓";position:absolute;inset:-3px 0 0;text-align:center;color:#fff;font-size:.78rem;font-weight:900}.completion-toggle b{font-size:.84rem}.next-card{background:linear-gradient(150deg,var(--surface),var(--surface-2));border:1px solid var(--line);border-radius:20px;padding:22px}.next-card small{color:var(--brand);font-weight:800;text-transform:uppercase;letter-spacing:.07em}.next-card h3{margin:8px 0}.next-card p{color:var(--muted);font-size:.86rem}.mini-nav{display:grid;gap:7px}.mini-nav a{display:flex;align-items:center;gap:10px;padding:10px 11px;border-radius:11px;color:var(--muted);font-size:.85rem}.mini-nav a span{width:26px;height:26px;border-radius:8px;background:var(--surface-2);display:grid;place-items:center;font-size:.72rem;font-weight:820;color:var(--brand)}.mini-nav a.active{background:var(--surface-2);color:var(--text);font-weight:760}.mini-nav a.active span{background:var(--brand);color:#fff}
/* admin */
.admin-shell{padding:38px 0 68px}.admin-hero{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:20px}.admin-hero h1{font-size:clamp(2.35rem,4.6vw,4.15rem);max-width:760px;margin:6px 0 8px}.admin-hero p{color:var(--muted);max-width:700px;margin:0}.admin-tip{display:flex;gap:12px;align-items:flex-start;background:var(--brand-soft);border:1px solid color-mix(in srgb,var(--brand) 20%,var(--line));border-radius:16px;padding:14px 16px;margin-bottom:20px}.admin-tip>span{color:var(--brand);font-size:1.1rem}.admin-tip strong{display:block;font-size:.88rem}.admin-tip p{margin:2px 0 0;color:var(--muted);font-size:.82rem}.admin-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:20px}.admin-side{height:max-content;position:sticky;top:94px}.admin-side h3{margin:0 0 10px}.admin-side hr{border:0;border-top:1px solid var(--line);margin:13px 0}.admin-tab{width:100%;text-align:left;border:0;background:transparent;color:var(--muted);padding:10px 11px;border-radius:10px;cursor:pointer;font-weight:700}.admin-tab:hover,.admin-tab.active{background:var(--surface-2);color:var(--text)}.admin-tab.danger{color:var(--danger)}.file-label{display:block}.file-label input{display:none}.admin-section{display:none}.admin-section.active{display:block}.admin-head{align-items:center}.admin-head>div p{margin:5px 0 0;color:var(--muted);font-size:.85rem}.admin-list{display:grid;gap:10px}.admin-item{display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:13px}.admin-item-icon{width:48px;height:48px;border-radius:12px;background:var(--surface-2);display:grid;place-items:center;color:var(--brand);font-weight:850;font-size:.74rem;text-align:center;padding:4px}.admin-item-copy strong,.admin-item-copy span,.admin-item-copy small{display:block}.admin-item-copy strong{font-size:.9rem}.admin-item-copy span{font-size:.82rem;color:var(--muted)}.admin-item-copy small{font-size:.71rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:560px}.admin-actions{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}.admin-actions button,.admin-actions a{border:1px solid var(--line);background:var(--surface);color:var(--text);padding:7px 9px;border-radius:9px;cursor:pointer;font-size:.77rem}.admin-actions button:hover,.admin-actions a:hover{border-color:color-mix(in srgb,var(--brand) 35%,var(--line));color:var(--brand)}.admin-actions .danger-link{color:var(--danger)}.admin-actions .move-btn{width:32px;padding-inline:0}.admin-empty{background:var(--surface);border:1px dashed var(--line);border-radius:16px;padding:30px;text-align:center;color:var(--muted)}.admin-empty strong{display:block;color:var(--text);margin-bottom:4px}.admin-form{margin-bottom:14px}.admin-form[hidden]{display:none}.form-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px;padding-bottom:12px;border-bottom:1px solid var(--line)}.form-title strong,.form-title span{display:block}.form-title strong{font-size:.94rem}.form-title span{font-size:.78rem;color:var(--muted);margin-top:2px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-grid label{font-size:.8rem;font-weight:760;color:var(--muted)}.form-grid input,.form-grid select,.form-grid textarea{width:100%;margin-top:6px;border:1px solid var(--line);border-radius:11px;background:var(--bg);color:var(--text);padding:10px 11px;font:inherit}.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 10%,transparent)}.span-2{grid-column:1/-1}.form-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:15px}.toast{position:fixed;right:22px;bottom:22px;background:#101b3a;color:white;padding:11px 15px;border-radius:11px;box-shadow:var(--shadow);opacity:0;transform:translateY(10px);pointer-events:none;transition:.18s}.toast.show{opacity:1;transform:none}
@media(max-width:1000px){.hero-grid{grid-template-columns:1fr;gap:32px}.hero-copy-col{max-width:800px}.hero-visual{min-height:390px}.grid-4{grid-template-columns:repeat(2,1fr)}.resources{grid-template-columns:1fr 1fr}.quick-facts{grid-template-columns:1fr 1fr}.info-band{grid-template-columns:1fr}.lesson-title{grid-template-columns:1fr}.lesson-layout{grid-template-columns:1fr}.lesson-aside{order:-1;display:grid;grid-template-columns:1fr 1fr}.lesson-status{max-width:360px}}
@media(max-width:820px){.menu-toggle{display:grid}.nav{position:absolute;top:calc(100% + 1px);left:16px;right:16px;display:none;flex-direction:column;align-items:stretch;background:var(--surface);border:1px solid var(--line);border-radius:15px;padding:8px;box-shadow:var(--shadow)}.nav.open{display:flex}.nav a{width:100%}.nav-admin{margin-left:0}.icon-btn{margin-left:0}.admin-grid{grid-template-columns:1fr}.admin-side{position:static;display:flex;gap:6px;overflow:auto}.admin-side h3,.admin-side hr{display:none}.admin-tab{white-space:nowrap;width:auto}.admin-hero{align-items:flex-start;flex-direction:column}.admin-item{grid-template-columns:42px 1fr}.admin-item-icon{width:42px;height:42px}.admin-actions{grid-column:2;justify-content:flex-start}.form-grid{grid-template-columns:1fr}.span-2{grid-column:auto}}
@media(max-width:640px){.container{width:min(calc(100% - 22px),var(--max))}.top-note{font-size:.72rem}.header-inner{min-height:66px;gap:9px}.brand-copy strong{font-size:.88rem}.brand-copy small{display:none}.brand-mark{width:36px;height:36px;border-radius:12px}.brand-mark:before,.brand-mark:after{left:9px}.menu-toggle{margin-left:auto}.hero{padding:42px 0 26px}.hero h1{font-size:clamp(2.4rem,12vw,3.5rem)}.hero-copy{font-size:1rem}.hero-visual{min-height:300px}.protein-card{border-radius:24px}.floating-card{display:none}.quick-facts{grid-template-columns:1fr}.section{padding:42px 0}.section-head{align-items:flex-start;flex-direction:column;gap:10px}.grid-4,.resources{grid-template-columns:1fr}.progress-wrap{grid-template-columns:1fr}.progress-count{width:68px;height:68px}.info-band{padding:22px;border-radius:22px}.lesson-aside{grid-template-columns:1fr}.lesson-title h1{font-size:clamp(2.3rem,12vw,3.4rem)}.completion-panel{align-items:flex-start;flex-direction:column}.completion-toggle{width:100%;justify-content:center}.panel{padding:18px}.admin-shell{padding-top:28px}.admin-hero h1{font-size:2.55rem}.admin-head{align-items:flex-start}.admin-head .btn{width:100%}.admin-item-copy small{max-width:230px}.footer-inner{align-items:flex-start;flex-direction:column}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}