/* Critical CSS Inline for Speed */
        :root{--bg-color:#0d0d0f;--surface-color:#161618;--surface-hover:#1c1c1f;--text-primary:#ffffff;--text-secondary:#94949e;--accent-gradient:linear-gradient(135deg, #2997FF 0%, #007aff 100%);--border-color:rgba(255, 255, 255, 0.08);--glass-bg:rgba(22, 22, 24, 0.7);--blur:20px;--ease-out-expo:cubic-bezier(0.16, 1, 0.3, 1);--max-w:1200px}
        *,*::before,*::after{box-sizing:border-box}
        body{background-color:var(--bg-color);color:var(--text-primary);margin:0;font-family:'Inter',system-ui,-apple-system,sans-serif;line-height:1.5;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
        a{text-decoration:none;color:inherit;transition:color 0.3s ease, opacity 0.3s ease}
        img,video{max-width:100%;height:auto;display:block}
        .container{max-width:var(--max-w);margin:0 auto;padding:0 1.5rem}
        
        header{position:fixed;top:0;left:0;width:100%;z-index:100;padding:1.25rem 0;transition:background 0.3s ease,border-bottom 0.3s ease,padding 0.3s ease}
        header.scrolled{background:var(--glass-bg);backdrop-filter:blur(var(--blur));-webkit-backdrop-filter:blur(var(--blur));border-bottom:1px solid var(--border-color);padding:1rem 0}
        .header-content{display:flex;justify-content:space-between;align-items:center}
        .header-logo{height:2.5rem;width:auto;opacity:0;animation:fadeInDown 0.8s var(--ease-out-expo) forwards}
        
        .hero{position:relative;padding-top:9rem;padding-bottom:5rem;overflow:hidden}
        .hero::before{content:'';position:absolute;top:-20%;left:50%;transform:translateX(-50%);width:80vw;height:60vh;background:radial-gradient(circle, rgba(41, 151, 255, 0.15) 0%, rgba(0,0,0,0) 60%);z-index:-1;pointer-events:none;filter:blur(80px)}
        .hero-layout{display:grid;grid-template-columns:1fr;gap:3rem;align-items:center}
        .hero-text{text-align:center}
        
        h1{font-size:clamp(2.5rem, 5vw, 4.5rem);font-weight:800;letter-spacing:-0.02em;line-height:1.1;margin-bottom:1.5rem;background:linear-gradient(180deg, #fff 0%, #a5a5a5 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;opacity:0;transform:translateY(20px);animation:fadeUp 1s var(--ease-out-expo) 0.1s forwards}
        .hero-desc{font-size:1.125rem;color:var(--text-secondary);margin:0 auto 2rem;max-width:600px;opacity:0;transform:translateY(20px);animation:fadeUp 1s var(--ease-out-expo) 0.2s forwards}
        .cta-group{display:flex;gap:1rem;justify-content:center;opacity:0;transform:translateY(20px);animation:fadeUp 1s var(--ease-out-expo) 0.3s forwards}
        
        .btn{display:inline-flex;align-items:center;justify-content:center;padding:0.875rem 2rem;border-radius:100px;font-weight:600;font-size:1rem;transition:transform 0.2s var(--ease-out-expo),box-shadow 0.2s ease,background 0.2s;cursor:pointer;position:relative;overflow:hidden; font-family: inherit; border: none;}
        .card::after,.btn::after{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:70%;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.8),transparent);box-shadow:0 0 8px rgba(255,255,255,0.6);opacity:0.9;pointer-events:none;z-index:10}
        .btn-primary{background:#fff;color:#000;box-shadow:inset 0 1px 0 0 rgba(255,255,255,0.5)}
        .btn-primary:hover{transform:scale(1.05);box-shadow:0 0 30px rgba(255,255,255,0.3),inset 0 1px 0 0 rgba(255,255,255,0.5)}
        .btn-secondary{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.1);color:#fff;backdrop-filter:blur(10px);box-shadow:inset 0 1px 0 0 rgba(255,255,255,0.15)}
        .btn-secondary:hover{background:rgba(255,255,255,0.15)}
        
        .legal-text{margin-top:1.5rem;font-size:0.8rem;color:#555;opacity:0;animation:fadeIn 1s ease 1s forwards}
        .legal-text a:hover{color:var(--text-primary);text-decoration:underline}
        
        .hero-visual{position:relative;width:100%;margin-top:2rem;border-radius:24px;overflow:hidden;box-shadow:0 40px 80px rgba(0,0,0,0.6);border:1px solid rgba(255,255,255,0.1);opacity:0;transform:translateY(40px) scale(0.95);animation:expandUp 1.2s var(--ease-out-expo) 0.4s forwards;will-change:transform,opacity; background:#111;}
        .hero-visual video{width:100%;display:block; object-fit: cover;}
        
        .section-header{text-align:center;margin-bottom:4rem}
        .section-header h2{font-size:clamp(2rem, 4vw, 3rem);font-weight:700;background:linear-gradient(90deg, #fff, #888);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:0.5rem}
        
        .bento-grid{display:grid;grid-template-columns:1fr;gap:1.5rem;margin-bottom:4rem}
        .card{background:var(--surface-color);border:1px solid var(--border-color);border-radius:20px;padding:2rem;position:relative;overflow:hidden;transition:transform 0.4s var(--ease-out-expo),border-color 0.3s;display:flex;flex-direction:column;justify-content:space-between;box-shadow:inset 0 1px 0 0 rgba(255,255,255,0.08); cursor: pointer;}
        .card:hover{transform:translateY(-5px);border-color:rgba(41, 151, 255, 0.3);background:var(--surface-hover)}
        .card::before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(800px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255,255,255,0.06), transparent 40%);opacity:0;transition:opacity 0.5s;pointer-events:none;z-index:1}
        .card:hover::before{opacity:1}
        .card h3{font-size:1.25rem;margin:0 0 0.75rem 0;display:flex;align-items:center;gap:10px;z-index:2}
        .card p{font-size:0.95rem;color:var(--text-secondary);margin:0;z-index:2}
        
        .tools-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(250px, 1fr));gap:1rem}
        .tools-grid .card{padding:1.5rem;min-height:140px}
        .more-tools-text { text-align: center; color: var(--text-secondary); margin-top: 3rem; font-size: 1.1rem; font-style: italic; }

        .privacy-section{margin-top:6rem;padding:5rem 0;background:linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(20,20,20,0.8) 100%);border-top:1px solid var(--border-color);text-align:center}
        .privacy-icon{font-size:3.5rem;margin-bottom:1.5rem;display:block;filter:drop-shadow(0 0 20px rgba(48, 209, 88, 0.3))}
        
        .app-footer { padding: 4rem 0; border-top: 1px solid var(--border-color); background: var(--bg-color); color: var(--text-secondary); }
        .footer-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
        .footer-logo { font-size: 1.5rem; font-weight: 800; color: #fff; margin-bottom: 2rem; }
        .footer-links-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 2rem; }
        .footer-group h4 { color: #fff; margin-bottom: 1.25rem; font-size: 1rem; font-weight: 600; }
        .footer-group a { display: block; margin-bottom: 0.75rem; font-size: 0.9rem; color: var(--text-secondary); }
        .footer-group a:hover { color: #fff; }

        .auth-dialog { background: var(--surface-color); color: var(--text-primary); border: 1px solid var(--border-color); border-radius: 24px; padding: 2.5rem; max-width: 450px; width: 90%; text-align: center; box-shadow: 0 25px 50px rgba(0,0,0,0.5); margin: auto; }
        .auth-dialog::backdrop { background: rgba(0, 0, 0, 0.6); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
        .auth-dialog h3 { font-size: 1.5rem; margin-top: 0; margin-bottom: 1rem; }
        .auth-dialog p { color: var(--text-secondary); margin-bottom: 2rem; line-height: 1.6; }
        .dialog-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
        
        @keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
        @keyframes fadeInDown{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}
        @keyframes expandUp{from{opacity:0;transform:translateY(40px) scale(0.95)}to{opacity:1;transform:translateY(0) scale(1)}}
        @keyframes fadeIn{to{opacity:1}}
        .reveal-on-scroll{opacity:0;transform:translateY(30px);transition:opacity 0.8s var(--ease-out-expo),transform 0.8s var(--ease-out-expo)}
        .reveal-on-scroll.is-visible{opacity:1;transform:translateY(0)}
        @media (min-width: 768px){.hero-layout{grid-template-columns:1fr 1fr;text-align:left}.hero-text{text-align:left}.cta-group{justify-content:flex-start}.hero-desc{margin:0 0 2rem 0}.bento-grid{grid-template-columns:repeat(3, 1fr);grid-auto-rows:minmax(180px, auto)}.bento-item-large{grid-column:span 2}.bento-item-tall{grid-row:span 2}}