:root{--text:#0f2027;--muted:#4b6070;--bg:#f0f7f5;--card:#fff;--border:#d1e5df;--accent:#0d9488;--accent2:#0891b2;--danger-bg:#fde8e8;--danger-text:#9b1c1c}body,html{padding:0;margin:0;background:radial-gradient(1200px 600px at 50% -10%,rgba(13,148,136,.22),transparent 60%),var(--bg);color:var(--text);font-family:ui-serif,Georgia,Cambria,Times New Roman,Times,serif;line-height:1.55;text-rendering:geometricPrecision}*{box-sizing:border-box}h1{letter-spacing:-.02em;line-height:1.05;margin:.25rem 0}p{color:var(--muted)}.page{min-height:100vh;padding:48px 16px 80px}.header{text-align:center;margin-bottom:24px}.badge{display:inline-block;padding:10px 14px;border-radius:999px;background:#0d9488;color:#fff;font-weight:700;font-size:12px;letter-spacing:.08em}.sub{margin:0;font-size:16px}.card{max-width:960px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:28px;padding:28px;box-shadow:0 24px 80px rgba(13,148,136,.1)}.file-upload-container{width:100%;margin:10px 0 18px}.file-upload-area{border:2px dashed rgba(13,148,136,.35);border-radius:20px;padding:30px 18px;min-height:180px;display:flex;align-items:center;justify-content:center;text-align:center;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;background:rgba(13,148,136,.03)}.file-upload-area.drag-active{background:rgba(13,148,136,.08);border-color:rgba(13,148,136,.65)}.upload-icon{display:flex;justify-content:center;align-items:center;margin-bottom:14px;color:var(--accent)}.file-prompt .prompt-main{font-size:18px;font-weight:700;color:var(--text);margin:0}.file-prompt .prompt-sub{margin:10px 0 0;color:var(--muted);font-size:14px}.file-selected .file-name{margin:0;font-weight:700;font-size:16px;color:var(--text)}.file-selected .file-size{margin:8px 0 0;color:var(--muted);font-size:13px}.file-selected .file-change{margin:10px 0 0;font-size:13px;color:var(--accent)}.controls{margin-top:16px}.label{font-weight:800;margin:10px 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24px;height:80px;justify-content:space-between}.nav,.nav-logo{display:flex;align-items:center}.nav-logo{font-size:20px;font-weight:800;color:var(--darker);text-decoration:none;letter-spacing:-.5px;gap:10px}.nav-logo-mark{width:36px;height:36px;background:var(--gradient-primary);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:900;flex-shrink:0}.nav-logo-text{display:flex;flex-direction:column;line-height:1.1}.nav-logo-title{font-size:15px;font-weight:800;color:var(--darker);letter-spacing:-.3px}.nav-logo-brand{font-size:10px;font-weight:600;color:var(--primary);letter-spacing:.05em;text-transform:uppercase}.nav-links{display:flex;align-items:center;gap:32px}.nav-link{color:#475569;text-decoration:none;font-size:15px;font-weight:500;transition:color 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a{color:#64748b;text-decoration:none}.footer-bottom-links a:hover{color:#fff}@media (max-width:768px){.footer-grid{grid-template-columns:1fr 1fr}.hero{padding:60px 24px 48px}.section{padding:56px 24px}.audience-grid{grid-template-columns:1fr}}@media (max-width:480px){.features-grid,.footer-grid,.pricing-grid,.workflow-steps{grid-template-columns:1fr}}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(.9)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .6s ease-out both}