@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap";@import "https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500&display=swap";:root{--bg-color:#f8f6f0;--card-bg:#fff;--text-primary:#1c1c1c;--text-secondary:#5a5a5a;--accent:#e05c23;--accent-hover:#c64a17;--border-color:#e2dfd4;--pill-bg:#fbe6dc;--pill-text:#b34415;--vocab-bg:#f3f1e9;--callout-yellow-bg:#fdf3cd;--callout-yellow-border:#d1941f;--callout-yellow-text:#6b4e12;--callout-blue-bg:#e8f0fe;--callout-blue-border:#4a84d8;--callout-blue-text:#194682}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);min-height:100vh;font-family:Outfit,sans-serif;line-height:1.6;overflow-x:hidden}.container{max-width:1000px;margin:0 auto;padding:2rem}.app-header{border-bottom:1px solid var(--border-color);background:var(--card-bg);z-index:100;justify-content:space-between;align-items:center;padding:1.5rem 2rem;display:flex;position:sticky;top:0;box-shadow:0 4px 20px #00000005}.app-logo{color:var(--text-primary);align-items:center;gap:.5rem;font-size:1.5rem;font-weight:800;text-decoration:none;display:flex}.app-logo-accent{color:var(--accent)}.grid-cards{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;margin-top:2rem;display:grid}.clean-card{background:var(--card-bg);border:1px solid var(--border-color);cursor:pointer;border-radius:20px;flex-direction:column;gap:1rem;padding:2rem;transition:all .2s;display:flex;box-shadow:0 4px 10px #00000005}.clean-card:hover{border-color:#d1cec2;transform:translateY(-4px);box-shadow:0 12px 24px #0000000f}.list-icon{background:var(--pill-bg);width:48px;height:48px;color:var(--accent);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.list-item{background:var(--card-bg);border:1px solid var(--border-color);cursor:pointer;color:var(--text-primary);border-radius:16px;align-items:center;gap:1.5rem;margin-bottom:1rem;padding:1.5rem;text-decoration:none;transition:all .2s;display:flex;box-shadow:0 2px 8px #00000003}.list-item:hover{transform:translate(8px);box-shadow:0 8px 16px #0000000a}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2}.page-title{text-align:center;letter-spacing:-.5px;margin-bottom:1rem;font-size:clamp(2.5rem,5vw,3.5rem);font-weight:800}.page-subtitle{text-align:center;color:var(--text-secondary);margin-bottom:3rem;max-width:600px;margin-inline:auto;font-size:1.1rem}.lesson-view-wrapper{flex-direction:column;max-width:1000px;height:calc(100dvh - 90px);margin:0 auto;padding:1rem;display:flex;overflow:hidden}.lesson-header{flex-shrink:0;align-items:center;gap:2rem;margin-bottom:1rem;display:flex}.btn-back{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;align-items:center;gap:.5rem;font-family:inherit;font-size:1rem;font-weight:600;text-decoration:none;transition:color .2s;display:inline-flex}.btn-back:hover{color:var(--text-primary)}.progress-container{background-color:#ebe8e0;border-radius:6px;flex:1;max-width:800px;height:8px;margin:0 2rem;display:flex;position:relative;overflow:hidden}.progress-bar-fill{background-color:var(--accent);border-radius:6px;height:100%;transition:width .3s ease-out}.slide-counter{color:var(--text-secondary);font-size:1.1rem;font-weight:600}.slide-container{flex:1;justify-content:center;align-items:center;min-height:0;display:flex;position:relative;overflow:hidden}.reader-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:20px;justify-content:center;align-items:center;width:100%;height:100%;padding:1rem;display:flex;box-shadow:0 10px 40px #0000000a}.lesson-pill{background:var(--pill-bg);color:var(--pill-text);letter-spacing:1px;text-transform:uppercase;border-radius:20px;align-self:flex-start;margin-bottom:1.5rem;padding:.3rem .8rem;font-size:.85rem;font-weight:700;display:inline-block}.fullscreen-wrapper{display:none}.fullscreen-wrapper.active{z-index:9999;background-color:#0f172a;justify-content:center;align-items:center;width:100vw;height:100vh;display:flex;position:fixed;top:0;left:0;overflow:hidden}.btn-close-fullscreen{color:#fff;cursor:pointer;z-index:10000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border:1px solid #fff3;border-radius:50%;justify-content:center;align-items:center;width:54px;height:54px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:absolute;top:2rem;right:2rem}.btn-close-fullscreen:hover{background:#fff3;transform:rotate(90deg)scale(1.1)}.fullscreen-image{object-fit:contain;border-radius:16px;max-width:95vw;max-height:95vh;box-shadow:0 20px 60px #00000080}.slide-controls{flex-shrink:0;justify-content:space-between;gap:1rem;margin-top:1rem;display:flex}.btn-slide{color:var(--text-primary);cursor:pointer;background:#ebe8e0;border:none;border-radius:12px;align-items:center;gap:.5rem;padding:1rem 2rem;font-family:inherit;font-size:1.1rem;font-weight:700;transition:all .2s;display:flex}.btn-slide:hover:not(:disabled){background:#e0ddd2}.btn-slide:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover);box-shadow:0 4px 14px #e05c234d}@media (width<=768px){.reader-card{padding:1rem}.progress-container{display:none}}.btn-floating-nav{color:#fff;cursor:pointer;z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0006;border:none;border-radius:50%;justify-content:center;align-items:center;width:50px;height:50px;transition:all .2s ease-out;display:flex;position:absolute;top:50%;transform:translateY(-50%)}.btn-floating-nav:hover:not(:disabled){background:#000000b3;transform:translateY(-50%)scale(1.1)}.btn-floating-nav:active:not(:disabled){transform:translateY(-50%)scale(.95)}.btn-floating-nav:disabled{opacity:.2;cursor:not-allowed}.btn-floating-nav.left{left:10px}.btn-floating-nav.right{right:10px}