:root{--bg:#f6f7fb;--surface:#fff;--text:#111827;--muted:#6b7280;--primary:#4f46e5;--primary-text:#fff;--border:#e5e7eb;--danger-bg:#fef2f2;--danger:#b91c1c;--warn-bg:#fffbeb;--warn:#92400e;--whatsapp:#25d366;--radius:14px}@media (prefers-color-scheme:dark){:root{--bg:#0b0d12;--surface:#161a22;--text:#f3f4f6;--muted:#9ca3af;--border:#262b36;--danger-bg:#2a1215;--danger:#fca5a5;--warn-bg:#2a2110;--warn:#fcd34d}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}h1{margin:.2rem 0;font-size:1.6rem}h2{margin:0 0 .25rem;font-size:1.05rem}p{margin:0;line-height:1.45}img{max-width:100%;display:block}.muted{color:var(--muted);font-size:.92rem}.btn{font:inherit;cursor:pointer;border:0;border-radius:10px;justify-content:center;align-items:center;gap:.4rem;padding:.85rem 1.1rem;font-weight:600;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.6;cursor:default}.btn-primary{background:var(--primary);color:var(--primary-text)}.btn-light{color:#111827;background:#fff}.btn-whatsapp{background:var(--whatsapp);color:#06301a}.btn-sm{padding:.55rem .85rem;font-size:.9rem}.link{color:var(--muted);font:inherit;cursor:pointer;background:0 0;border:0;text-decoration:underline}.login{text-align:center;max-width:420px;margin:0 auto;padding:12vh 20px 40px}.login-logo{border-radius:18px;margin:0 auto 16px}.login-form{flex-direction:column;gap:12px;margin-top:24px;display:flex}.login-form input{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:10px;padding:.9rem 1rem;font-size:16px}.alert{background:var(--danger-bg);color:var(--danger);border-radius:10px;flex-direction:column;gap:12px;margin-top:16px;padding:14px;display:flex}.home{max-width:960px;margin:0 auto;padding:20px 16px 48px}.home-header{justify-content:space-between;align-items:flex-end;margin-bottom:20px;display:flex}.grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px;display:grid}@media (min-width:640px){.grid{grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:18px}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;display:flex;overflow:hidden}.card-cover{background:var(--border);cursor:pointer;border:0;padding:0}.card-cover img{width:100%;height:auto}.card-body{flex-direction:column;flex:1;gap:8px;padding:12px;display:flex}.card-body .btn{margin-top:auto}.error-text{color:var(--danger);font-size:.85rem}.skeleton{aspect-ratio:3/4;animation:1.2s ease-in-out infinite pulse}@keyframes 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li{align-items:center;gap:12px;line-height:1.4;display:flex}.step-num{background:var(--primary);width:28px;height:28px;color:var(--primary-text);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-weight:700;display:inline-flex}.inline-icon{vertical-align:-4px;color:#007aff;width:20px;height:20px}h3{margin:0 0 .25rem;font-size:1.02rem}.section{margin-bottom:28px}.section-title{margin:0 0 12px;font-size:1.1rem}.card-cover{display:block;position:relative}.card.locked .card-cover{cursor:default;overflow:hidden}.card.locked .card-cover img{filter:grayscale();opacity:.6}.card.locked .card-cover:after{content:"";background:linear-gradient(#78787840 0%,#3c3c3c99 100%);position:absolute;inset:0}.lock-badge{z-index:1;color:#fff;text-shadow:0 1px 4px #00000080;flex-direction:column;justify-content:center;align-items:center;gap:6px;font-size:2rem;display:flex;position:absolute;inset:0}.lock-badge small{font-size:.8rem;font-weight:600}.card.locked h3,.card.locked .muted{opacity:.6}.btn-light-outline{color:var(--text);border:1px solid var(--border);background:0 0}.back-link{color:var(--muted);margin-bottom:16px;text-decoration:none;display:inline-block}.module-header{align-items:center;gap:16px;margin-bottom:20px;display:flex}.module-header img{border-radius:10px;flex-shrink:0;width:96px;height:auto}.item-list{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.item-list li{background:var(--surface);border:1px solid var(--border);border-radius:12px;flex-wrap:wrap;align-items:center;gap:12px;padding:12px 14px;display:flex}.item-icon{font-size:1.3rem}.item-title{flex:1;min-width:0;font-weight:600}.item-list .error-text{flex-basis:100%}.locked-hint{color:var(--muted);margin-top:auto;font-size:.82rem}.reader{background:#2b2f36;min-height:100dvh}.reader-bar{z-index:10;padding:calc(8px + env(safe-area-inset-top)) 12px 8px;background:var(--surface);border-bottom:1px solid var(--border);align-items:center;gap:10px;display:flex;position:sticky;top:0}.reader-back{color:var(--text);cursor:pointer;background:0 0;border:0;width:40px;height:40px;font-size:1.4rem}.reader-title{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-weight:600;overflow:hidden}.reader-page{color:var(--muted);font-variant-numeric:tabular-nums;font-size:.85rem}.pdf-pages{flex-direction:column;gap:8px;max-width:900px;margin:0 auto;padding:8px;display:flex}.pdf-page{background:#f3f4f6;width:100%;position:relative;box-shadow:0 1px 4px #0000004d}.pdf-page:before{content:"Carregando página…";color:#9ca3af;justify-content:center;align-items:center;font-size:.9rem;display:flex;position:absolute;inset:0}.pdf-page canvas{width:100%;height:100%;display:block;position:relative}.pdf-page canvas:not([width]),.pdf-page canvas[width="0"]{visibility:hidden}.pdf-loading{color:#d1d5db;text-align:center;padding:40vh 0}.reader .alert{margin:16px}