/* Protocolo Inshallah · estética TC Group v3.1 (oscuro, firma amarilla). Tokens copiados de
   raw/TC Group/Identidad Visual/identidad-visual.html — no se editan. Familia única: Inter. */
:root {
  --bg: #000; --bg-elevated: #060608; --bg-card: #0f1014; --bg-deep: #050507;
  --border: #1c1c1f; --border-strong: #2a2a2e;
  --text: #f5f5f7; --text-dim: #98989d; --text-faint: #6e6e73;
  --accent: #F5C518; --accent-2: #FFA826; --accent-3: #FF8A3D;
  --gradient: linear-gradient(135deg, #F5C518 0%, #FFA826 50%, #FF8A3D 100%);
  --gradient-text: linear-gradient(135deg, #F5C518 0%, #FFA826 100%);
  --green: #4ade80; --red: #ff3b30; --amber: #fbbf24; --cyan: #5ec8ff;
  --chart-grid: rgba(255,255,255,0.06); --chart-axis: #6e6e73; --chart-muted: rgba(255,255,255,0.14);
  --glow-sm: 0 0 16px rgba(245,197,24,0.30); --glow-md: 0 0 32px rgba(245,197,24,0.35);
  --glow-lg: 0 24px 80px -12px rgba(245,197,24,0.35);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1); --ease-pop: cubic-bezier(0.34, 1.56, 0.64, 1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;letter-spacing:-0.011em;overflow-x:hidden;min-height:100vh}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse at center,rgba(0,0,0,0) 0%,rgba(0,0,0,0.55) 100%);pointer-events:none;z-index:1}
::selection{background:rgba(245,197,24,0.85);color:#000}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.aurora-bg{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;filter:blur(160px) saturate(1.1);opacity:0.16}
.aurora-blob{position:absolute;border-radius:50%;mix-blend-mode:screen;will-change:transform}
.aurora-blob.b1{width:600px;height:600px;background:radial-gradient(circle,#F5C518 0%,transparent 70%);top:-200px;left:-100px;animation:float-1 25s ease-in-out infinite}
.aurora-blob.b2{width:500px;height:500px;background:radial-gradient(circle,#FFA826 0%,transparent 70%);top:30vh;right:-150px;animation:float-2 30s ease-in-out infinite}
.aurora-blob.b3{width:700px;height:700px;background:radial-gradient(circle,#FF8A3D 0%,transparent 70%);bottom:-200px;left:30%;animation:float-3 35s ease-in-out infinite}
@keyframes float-1{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(40vw,30vh) scale(1.2)}}
@keyframes float-2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-30vw,50vh) scale(0.9)}}
@keyframes float-3{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-20vw,-30vh) scale(1.3)}}
.reading-progress{position:fixed;top:0;left:0;width:100%;height:3px;z-index:100;pointer-events:none}
.reading-progress-bar{height:100%;background:var(--gradient);width:0;box-shadow:0 0 16px rgba(245,197,24,0.50)}

/* ── Layout ── */
.layout{display:grid;grid-template-columns:300px minmax(0,1fr);min-height:100vh;position:relative;z-index:2}
.sidebar{position:sticky;top:0;height:100vh;border-right:1px solid var(--border);background:rgba(0,0,0,0.72);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);padding:36px 26px 24px;overflow-y:auto;z-index:40;display:flex;flex-direction:column}
.sidebar::-webkit-scrollbar{width:4px}.sidebar::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:2px}
.sidebar-header{margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid var(--border)}
.sidebar-eyebrow{font-size:10px;font-weight:700;letter-spacing:0.16em;text-transform:uppercase;background:var(--gradient-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:8px}
.sidebar-title{font-size:18px;font-weight:800;line-height:1.2;letter-spacing:-0.02em}
.sidebar-title a:hover{opacity:.85}
.progress-pill{margin-top:14px}
.progress-track{height:5px;background:var(--border);border-radius:99px;overflow:hidden}
.progress-fill{height:100%;background:var(--gradient);border-radius:99px;width:0;transition:width .4s var(--ease)}
.progress-txt{font-size:12px;color:var(--text-faint);margin-top:6px}
.search-box{margin:4px 0 6px;position:relative}
.search-box input{width:100%;background:var(--bg-card);border:1px solid var(--border-strong);border-radius:10px;color:var(--text);font-family:inherit;font-size:16px;padding:9px 12px 9px 32px;outline:none;transition:border .2s;-webkit-appearance:none;appearance:none}
.search-box input:focus{border-color:var(--accent)}
.search-box::before{content:'⌕';position:absolute;left:11px;top:7px;color:var(--text-faint);font-size:16px}
.nav-list{list-style:none;flex:1}
.nav-section{font-size:9px;font-weight:800;letter-spacing:0.18em;text-transform:uppercase;color:var(--text-faint);margin:20px 0 6px;position:relative;padding-left:16px}
.nav-section::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:8px;height:1px;background:var(--gradient)}
.nav-item a{display:flex;align-items:center;gap:8px;padding:7px 0 7px 16px;margin-left:-16px;color:var(--text-dim);font-size:13px;transition:color .2s ease;border-left:1px solid transparent;line-height:1.35}
.nav-item a:hover{color:var(--text)}
.nav-item a.active{color:var(--text);border-left-color:var(--accent);font-weight:600;background:linear-gradient(90deg,rgba(245,197,24,0.1),transparent)}
.nav-num{font-size:10.5px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--text-faint);min-width:24px}
.nav-item a.done .nav-num{color:var(--green)}
.nav-check{margin-left:auto;font-size:11px;color:var(--green);opacity:0;flex:none}
.nav-item a.done .nav-check{opacity:1}
.nav-empty{font-size:12px;color:var(--text-faint);padding:4px 0 4px 16px;margin-left:-16px}
.nav-dot{width:6px;height:6px;border-radius:50%;flex:none;background:var(--text-faint)}
.sidebar-foot{margin-top:24px;padding-top:16px;border-top:1px solid var(--border);font-size:12px}
.logout-btn{background:none;border:none;color:var(--text-faint);cursor:pointer;font-size:12px;padding:0}
.logout-btn:hover{color:var(--accent)}

main{max-width:880px;margin:0 auto;padding:64px 56px 140px;position:relative;z-index:2;width:100%;min-width:0}
.crumb{font-size:11px;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;color:var(--text-faint);margin-bottom:18px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.crumb b{background:var(--gradient-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.lesson-title{font-size:clamp(32px,4.6vw,52px);font-weight:900;letter-spacing:-0.04em;line-height:1.04;margin-bottom:20px;overflow-wrap:anywhere}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px}
.meta-chip{font-size:12px;font-weight:600;color:var(--text-dim);border:1px solid var(--border-strong);background:rgba(15,16,20,0.6);padding:7px 14px;border-radius:99px}
.meta-chip b{color:var(--text);font-variant-numeric:tabular-nums}

/* ── Chips de rol (significado: a quién va la lección; siempre con texto) ── */
.rol{display:inline-flex;align-items:center;gap:7px;font-size:11px;font-weight:800;letter-spacing:0.08em;text-transform:uppercase;padding:6px 12px;border-radius:999px;border:1px solid;white-space:nowrap}
.rol::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor}
.rol-setter{color:var(--accent);border-color:rgba(245,197,24,0.40);background:rgba(245,197,24,0.08)}
.rol-agente{color:var(--cyan);border-color:rgba(94,200,255,0.35);background:rgba(94,200,255,0.08)}
.rol-edu{color:var(--accent-3);border-color:rgba(255,138,61,0.40);background:rgba(255,138,61,0.08)}
.rol-todos{color:var(--text-dim);border-color:var(--border-strong);background:rgba(255,255,255,0.03)}
.nav-dot.rol-setter{background:var(--accent)}.nav-dot.rol-agente{background:var(--cyan)}.nav-dot.rol-edu{background:var(--accent-3)}.nav-dot.rol-todos{background:var(--text-faint)}
.proto{font-size:11px;font-weight:700;color:var(--text-faint);font-variant-numeric:tabular-nums;letter-spacing:0.02em}

/* ── Texto de la lección ── */
.prose{font-size:16.5px;line-height:1.75;color:#d6d6da;overflow-wrap:break-word}
.prose h1{font-size:30px;font-weight:850;letter-spacing:-0.03em;line-height:1.15;margin:60px 0 20px;color:var(--text);padding-top:18px;border-top:1px solid var(--border)}
.prose h2{font-size:24px;font-weight:800;letter-spacing:-0.025em;line-height:1.2;margin:52px 0 16px;color:var(--text);position:relative;padding-left:18px}
.prose h2::before{content:'';position:absolute;left:0;top:5px;bottom:5px;width:5px;border-radius:4px;background:var(--gradient);box-shadow:var(--glow-sm)}
.prose h3{font-size:18.5px;font-weight:750;margin:38px 0 12px;color:var(--text)}
.prose h4{font-size:16px;font-weight:700;margin:28px 0 10px;color:var(--text)}
.prose p{margin:0 0 18px}
.prose strong{color:var(--text);font-weight:700}
.prose em{color:var(--text-dim)}
.prose ul,.prose ol{margin:0 0 20px;padding-left:26px}
.prose li{margin-bottom:9px}
.prose li::marker{color:var(--accent)}
.prose hr{border:none;border-top:1px solid var(--border);margin:46px 0}
.prose a{color:var(--accent);border-bottom:1px solid rgba(245,197,24,0.35);transition:all .2s}
.prose a:hover{color:#fff;border-bottom-color:#fff}
.prose blockquote{background:var(--bg-card);border:1px solid var(--border);border-radius:18px;padding:20px 24px 20px 28px;margin:0 0 22px;font-size:15.5px;position:relative;overflow:hidden}
.prose blockquote::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--gradient);box-shadow:0 0 20px var(--accent)}
.prose blockquote p{margin-bottom:12px}.prose blockquote p:last-child{margin-bottom:0}
.prose code{font-family:inherit;font-weight:600;font-variant-numeric:tabular-nums;font-feature-settings:'calt' 0;font-size:0.94em;background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:2px 8px;color:var(--accent)}
.warn-p{border:1px solid rgba(255,138,61,0.4);background:rgba(255,138,61,0.07);border-radius:12px;padding:14px 18px}
.table-wrap{overflow-x:auto;margin:0 0 22px;border:1px solid var(--border);border-radius:16px;background:var(--bg-card);-webkit-overflow-scrolling:touch}
.prose table{border-collapse:collapse;width:100%;font-size:14.5px}
.prose thead{background:linear-gradient(180deg,rgba(245,197,24,0.06),var(--bg-card))}
.prose th{text-align:left;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;padding:12px 16px;border-bottom:1px solid var(--border);background:var(--gradient-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.prose td{padding:12px 16px;border-top:1px solid var(--border);color:var(--text);vertical-align:top}
li.todo{list-style:none;position:relative;padding-left:30px;margin-left:-12px}
li.todo .cb{position:absolute;left:4px;top:0.3em;width:16px;height:16px;margin:0;accent-color:var(--accent,#F5C518);opacity:1;cursor:default}
li.todo p{margin:0}
figure.shot{margin:26px 0;border:1px solid var(--border-strong);border-radius:16px;overflow:hidden;background:var(--bg-card)}
figure.shot img{display:block;width:100%;height:auto}
figure.shot.sm{max-width:340px}
figure.shot.md{max-width:520px}

/* ── Plantillas de WhatsApp (bloques de código) ── */
.tpl{margin:22px 0 26px;border:1px solid var(--border-strong);border-radius:18px;background:var(--bg-card);overflow:hidden;position:relative}
.tpl::before{content:'';position:absolute;left:0;top:0;right:0;height:2px;background:var(--gradient)}
.tpl-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px 10px 18px;border-bottom:1px solid var(--border)}
.tpl-label{font-size:12px;font-weight:400;color:var(--text-faint)}
.copy-btn{font-size:13px;font-weight:700;color:#000;background:var(--gradient);border:none;border-radius:99px;padding:8px 16px;cursor:pointer;min-height:36px;transition:transform .2s var(--ease)}
.copy-btn:active{transform:scale(0.96)}
.copy-btn.ok{background:var(--green)}
.tpl pre{margin:0;padding:16px 18px 18px;font-family:'Inter',-apple-system,sans-serif;font-weight:500;font-size:15.5px;line-height:1.6;color:var(--text);white-space:pre-wrap;overflow-wrap:anywhere;word-break:normal;background:transparent;border:none}
.tpl pre code{font:inherit;color:inherit;background:none;border:none;padding:0;white-space:inherit}

/* ── Audios ── */
.audio-card{margin:22px 0 26px;border:1px solid var(--border-strong);border-radius:18px;background:var(--bg-card);padding:16px 18px 18px}
.audio-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;margin-bottom:8px}
.audio-chip{font-size:10.5px;font-weight:800;letter-spacing:0.08em;text-transform:uppercase;background:var(--gradient);color:#000;border-radius:99px;padding:4px 10px;flex:none}
.audio-chip.warn{background:rgba(251,191,36,0.10);color:var(--amber);border:1px solid rgba(251,191,36,0.35)}
.audio-title{font-size:15px;font-weight:700;color:var(--text);line-height:1.35;min-width:0}
.audio-note{font-size:14px;color:var(--text-dim);line-height:1.55;margin-bottom:12px}
.audio-player audio{width:100%;display:block;height:40px}
.audio-card.locked .audio-player{opacity:0.35;pointer-events:none;filter:grayscale(1)}

/* ── Fin de lección ── */
.lesson-end{margin-top:68px;border-top:1px solid var(--border);padding-top:34px}
.complete-btn{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:800;letter-spacing:-0.01em;padding:14px 26px;border-radius:99px;border:1px solid var(--border-strong);background:var(--bg-card);color:var(--text);cursor:pointer;transition:all .25s}
.complete-btn:hover{border-color:var(--accent)}
.complete-btn.done{background:var(--gradient);color:#000;border-color:transparent}
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:28px}
.pn-card{border:1px solid var(--border-strong);border-radius:16px;background:rgba(15,16,20,0.6);padding:18px 20px;transition:border-color .25s,transform .25s;display:block;min-width:0}
.pn-card:hover{border-color:rgba(245,197,24,0.45);transform:translateY(-2px)}
.pn-label{font-size:10px;font-weight:800;letter-spacing:0.14em;text-transform:uppercase;color:var(--text-faint);margin-bottom:8px}
.pn-title{font-size:14.5px;font-weight:700;line-height:1.3;overflow-wrap:anywhere}
.pn-card.next .pn-label{background:var(--gradient-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ── Portada ── */
.hero{padding:26px 0 12px;margin-bottom:30px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:11px;font-weight:700;letter-spacing:0.16em;text-transform:uppercase;color:var(--text-dim);padding:9px 16px;border:1px solid var(--border-strong);border-radius:999px;background:rgba(255,255,255,0.03);margin-bottom:26px}
.hero-eyebrow::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--gradient);box-shadow:var(--glow-sm);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 16px var(--accent)}50%{box-shadow:0 0 32px var(--accent),0 0 48px var(--accent-2)}}
.hero h1{font-size:clamp(44px,8vw,92px);font-weight:900;letter-spacing:-0.05em;line-height:0.95;margin-bottom:24px}
.hero h1 .gradient{background:var(--gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;padding-right:0.08em;margin-right:-0.08em}
.hero-sub{font-size:clamp(17px,2vw,21px);color:var(--text-dim);line-height:1.5;max-width:660px;margin-bottom:32px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:42px}
.cta-primary{display:inline-flex;align-items:center;gap:10px;font-size:15px;font-weight:800;letter-spacing:-0.01em;padding:15px 30px;border-radius:99px;background:var(--gradient);color:#000;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.cta-primary:hover{transform:translateY(-2px);box-shadow:var(--glow-lg)}
.cta-primary.off{opacity:.4;pointer-events:none}
.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1px;background:var(--border);border:1px solid var(--border);border-radius:18px;overflow:hidden;margin-bottom:52px}
.stat-item{padding:20px 24px;background:rgba(15,16,20,0.6)}
.stat-num{font-size:30px;font-weight:900;letter-spacing:-0.045em;line-height:1;font-variant-numeric:tabular-nums;background:var(--gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;padding-right:0.08em;margin-right:-0.08em;display:inline-block}
.stat-lbl{font-size:12px;font-weight:400;color:var(--text-faint);margin-top:8px}
.block-section{margin-bottom:48px}
.block-head{display:flex;align-items:center;gap:16px;margin-bottom:18px}
.block-badge{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:16px;font-weight:900;font-variant-numeric:tabular-nums;color:#000;background:var(--gradient);flex:none;box-shadow:var(--glow-sm)}
.block-info{flex:1;min-width:0}
.block-eyebrow{font-size:10px;font-weight:800;letter-spacing:0.16em;text-transform:uppercase;color:var(--text-faint);margin-bottom:3px}
.block-title{font-size:21px;font-weight:800;letter-spacing:-0.02em;line-height:1.15}
.block-prog{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex:none}
.block-prog-track{width:84px;height:5px;background:var(--border);border-radius:99px;overflow:hidden}
.block-prog-fill{height:100%;width:0;background:var(--gradient);border-radius:99px;transition:width .45s var(--ease)}
.block-prog-txt{font-size:11px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--text-faint)}
.block-empty{border:1px dashed var(--border-strong);border-radius:18px;padding:18px 22px;font-size:14px;color:var(--text-faint)}
.lesson-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.lesson-card{display:flex;flex-direction:column;border:1px solid var(--border);background:linear-gradient(135deg,var(--bg-card) 0%,var(--bg-elevated) 100%);border-radius:20px;padding:22px 24px;transition:transform .3s var(--ease),border-color .3s var(--ease);position:relative;overflow:hidden;min-height:150px;min-width:0}
.lesson-card::after{content:'';position:absolute;left:0;right:0;top:0;height:2px;background:var(--gradient);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.lesson-card:hover{border-color:rgba(245,197,24,0.4);transform:translateY(-3px)}
.lesson-card:hover::after{transform:scaleX(1)}
.lc-top{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.lc-num{font-size:21px;font-weight:900;letter-spacing:-0.03em;font-variant-numeric:tabular-nums;background:var(--gradient-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;padding-right:0.08em;margin-right:-0.08em}
.lesson-card.done .lc-num{background:none;-webkit-text-fill-color:var(--green)}
.lc-check{margin-left:auto;flex:none;width:24px;height:24px;border-radius:50%;border:1.5px solid var(--border-strong);display:grid;place-items:center;font-size:12px;color:transparent;transition:all .2s}
.lesson-card.done{border-color:rgba(74,222,128,0.35)}
.lesson-card.done .lc-check{background:var(--green);border-color:transparent;color:#000;font-weight:900}
.lc-title{font-size:16.5px;font-weight:750;letter-spacing:-0.015em;line-height:1.25;margin-bottom:8px;overflow-wrap:anywhere}
.lc-desc{font-size:13.5px;color:var(--text-dim);line-height:1.5;flex:1}
.lc-foot{margin-top:14px;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.lc-foot .rol{font-size:10px;padding:4px 10px}

/* ── Buscador ── */
.search-results{position:absolute;top:44px;left:0;right:0;background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:14px;max-height:55vh;overflow-y:auto;z-index:60;display:none;box-shadow:0 24px 64px rgba(0,0,0,0.7)}
.search-results.open{display:block}
.sr-item{display:block;padding:12px 16px;border-bottom:1px solid var(--border)}
.sr-item:last-child{border-bottom:none}
.sr-item:hover{background:rgba(245,197,24,0.06)}
.sr-title{font-size:13.5px;font-weight:700}
.sr-ctx{font-size:12px;color:var(--text-dim);margin-top:3px;line-height:1.45}
.sr-ctx mark{background:rgba(245,197,24,0.30);color:#fff;border-radius:3px;padding:0 2px}
.sr-empty{padding:14px 16px;font-size:12.5px;color:var(--text-faint)}

/* ── Login y 404 ── */
.gate{min-height:100vh;display:grid;place-items:center;padding:24px 16px;position:relative;z-index:2}
.gate-card{width:100%;max-width:400px;background:linear-gradient(135deg,var(--bg-card) 0%,var(--bg-elevated) 100%);border:1px solid var(--border);border-radius:24px;padding:36px 30px 30px;position:relative;overflow:hidden}
.gate-card::before{content:'';position:absolute;left:0;right:0;top:0;height:2px;background:var(--gradient)}
.gate-logo{width:44px;height:44px;margin-bottom:22px;display:block}
.gate-title{font-size:30px;font-weight:900;letter-spacing:-0.04em;line-height:1.05;margin-bottom:8px}
.gate-title .gradient{background:var(--gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;padding-right:0.08em;margin-right:-0.08em}
.gate-sub{font-size:14.5px;color:var(--text-dim);margin-bottom:26px;line-height:1.5}
.field{display:block;margin-bottom:16px}
.field span{display:block;font-size:13px;color:var(--text-faint);margin-bottom:7px}
.field input{width:100%;background:var(--bg-deep);border:1px solid var(--border-strong);border-radius:12px;color:var(--text);font-family:inherit;font-size:16px;padding:12px 14px;outline:none;transition:border .2s}
.field input:focus{border-color:var(--accent)}
.gate-btn{width:100%;margin-top:6px;font-size:15px;font-weight:800;padding:14px;border:none;border-radius:99px;background:var(--gradient);color:#000;cursor:pointer;min-height:48px}
.gate-btn[disabled]{opacity:.55;cursor:wait}
.gate-msg{min-height:22px;font-size:13.5px;margin-top:14px;color:var(--red)}
.gate-help{font-size:13px;color:var(--text-faint);margin-top:16px;line-height:1.5}
.gate-help b{color:var(--text-dim);font-weight:600}

.topbar{display:none}
.menu-btn{background:var(--bg-elevated);border:1px solid var(--border-strong);color:var(--text);width:44px;height:44px;border-radius:12px;font-size:18px;cursor:pointer;flex:none}
.topbar-title{font-size:15px;font-weight:800;letter-spacing:-0.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.scrim{display:none}
@media (max-width:1080px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .topbar{display:flex;align-items:center;gap:12px;position:fixed;top:0;left:0;right:0;height:60px;padding:0 14px;z-index:50;background:rgba(0,0,0,0.82);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}
  .sidebar{position:fixed;left:0;top:60px;height:calc(100vh - 60px);height:calc(100dvh - 60px);width:min(300px,86vw);padding-top:24px;transform:translateX(-100%);transition:transform .3s var(--ease);box-shadow:24px 0 64px rgba(0,0,0,0.6)}
  .sidebar.open{transform:translateX(0)}
  .scrim.open{display:block;position:fixed;inset:60px 0 0 0;z-index:35;background:rgba(0,0,0,0.55)}
  main{padding:88px 18px 110px}
  .pn-grid,.lesson-grid{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:520px){
  .block-prog{display:none}
  .prose{font-size:16px}
  .tpl pre{font-size:15px;padding:14px 14px 16px}
  .audio-card{padding:14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}
@media print{.topbar,.sidebar,.menu-btn,.reading-progress,.aurora-bg,.scrim,.copy-btn{display:none!important}.layout{grid-template-columns:1fr}body{background:#fff;color:#000}}