:root{--bg:#fff;--card:#fff;--text:#0b1533;--muted:#5d6b82;--brand:#2f6bff;--accent:#0aa37a;--border:#d9e1ec}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,"Noto Sans","Apple Color Emoji","Segoe UI Emoji"}.home{background:linear-gradient(135deg,#fff 0%,#f7faff 40%,#eef3ff 100%)}.container{max-width:1100px;margin:0 auto;padding:24px}.site-header{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--border);z-index:10}.header-inner{display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}.logo{width:28px;height:28px}.social-proof{display:flex;align-items:center;gap:16px;margin:0 24px}.social-link{display:flex;align-items:center;gap:8px;padding:8px 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(max-width:600px){.controls{grid-template-columns:1fr}.calc-grid{grid-template-columns:1fr}.features-grid{grid-template-columns:1fr;gap:12px}.feature-card{padding:20px}.features-header h3{font-size:24px}.nav{gap:12px}.nav-link{font-size:14px}.language-selector{min-width:120px;font-size:12px}.dropdown-menu{min-width:200px;left:-50px}.dropdown-item{padding:10px 12px}.dropdown-icon{width:20px;height:20px}.dropdown-item span{font-size:13px}.social-proof{margin:0 8px;gap:8px}.social-link{font-size:12px;padding:4px 8px}.social-text{display:none}.trust-badge{font-size:10px;padding:3px 6px}.footer-social-link{font-size:13px;padding:6px 12px}.trust-indicators{flex-wrap:wrap;justify-content:center}.trust-indicator{font-size:11px;padding:4px 8px}.quick-compress-header h3{font-size:20px}.upload-zone{padding:40px 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