:root{--bg:#ffffff;--card:#ffffff;--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,#ffffff 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 Section */
.social-proof{display:flex;align-items:center;gap:16px;margin:0 24px}
.social-link{display:flex;align-items:center;gap:8px;padding:8px 12px;background:linear-gradient(135deg,#1da1f2,#0d8bd9);color:#fff;text-decoration:none;border-radius:20px;font-size:14px;font-weight:500;transition:all 0.3s ease;box-shadow:0 2px 8px rgba(29,161,242,0.2)}
.social-link:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(29,161,242,0.3);background:linear-gradient(135deg,#0d8bd9,#1da1f2)}
.social-icon{width:16px;height:16px;filter:brightness(0) invert(1)}
.social-text{font-weight:600}
.trust-badge{background:linear-gradient(135deg,#10b981,#059669);color:#fff;padding:6px 12px;border-radius:16px;font-size:12px;font-weight:600;box-shadow:0 2px 6px rgba(16,185,129,0.2)}
.trust-text{display:flex;align-items:center;gap:4px}
.nav{display:flex;align-items:center;gap:24px}
.nav-link{color:var(--muted);text-decoration:none;font-weight:500;transition:color 0.2s ease;position:relative}
.nav-link:hover{color:var(--text)}

/* Dropdown Menu Styles */
.nav-dropdown{position:relative}
.dropdown-toggle{color:var(--muted);text-decoration:none;font-weight:500;transition:color 0.2s ease;cursor:pointer;display:flex;align-items:center;gap:4px}
.dropdown-toggle:hover{color:var(--text)}
.dropdown-toggle::after{content:'▼';font-size:10px;transition:transform 0.2s ease}
.nav-dropdown:hover .dropdown-toggle::after{transform:rotate(180deg)}
.dropdown-menu{position:absolute;top:100%;left:0;background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:0 8px 32px rgba(21,50,96,0.12);padding:8px;min-width:280px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all 0.2s ease;z-index:1000}
.nav-dropdown:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:8px;text-decoration:none;color:var(--text);transition:background-color 0.2s ease;margin:2px 0}
.dropdown-item:hover{background:linear-gradient(135deg,#f7faff,#eef3ff)}
.dropdown-icon{width:24px;height:24px;flex-shrink:0}
.dropdown-item span{font-weight:500;font-size:14px}

/* Language Selector Styles */
.nav-language{position:relative}
.language-selector{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:8px 12px;color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:all 0.2s ease;min-width:140px}
.language-selector:hover{border-color:var(--brand);box-shadow:0 2px 8px rgba(47,107,255,0.1)}
.language-selector:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,0.1)}
.hero{padding:16px 0 24px 0}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;margin:16px 0;box-shadow:0 6px 24px rgba(21,50,96,0.08)}
.uploader{border:2px dashed var(--border);border-radius:12px;padding:16px;text-align:center;color:var(--muted);background:#f7faff}
.btn{background:var(--brand);color:#fff;border:none;border-radius:10px;padding:10px 14px;cursor:pointer}
.btn:disabled{opacity:.5;cursor:not-allowed}
.controls{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:12px 0}
.control{display:flex;flex-direction:column;gap:6px}
label{color:var(--muted)}
.preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.preview{background:#f3f7ff;border:1px solid var(--border);border-radius:10px;min-height:240px;display:flex;align-items:center;justify-content:center;overflow:auto}
.preview img, .preview canvas{max-width:100%;max-height:380px;height:auto}
.meta{color:var(--muted);font-size:12px;margin-top:6px}
.actions{margin-top:12px}
.thumb-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;margin-top:12px}
.thumb{background:#f7faff;border:1px solid var(--border);border-radius:10px;padding:8px}
.thumb img{width:100%;height:120px;object-fit:contain;background:#0b0e1a}
.thumb .small{font-size:12px;color:var(--muted)}
.calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:12px 0}
.calc-results{background:#f7faff;border:1px solid var(--border);border-radius:10px;padding:12px;color:#0b1533}
.site-footer{border-top:1px solid var(--border);margin-top:24px;background:linear-gradient(135deg,#f8faff 0%,#eef6ff 100%);padding:32px 0}
.footer-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px}
.footer-left{flex:1}
.copyright{margin:0 0 4px 0;font-weight:600;color:var(--text)}
.footer-tagline{margin:0;font-size:14px;color:var(--muted)}
.footer-right{display:flex;flex-direction:column;gap:16px;align-items:flex-end}
.footer-social{display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.footer-social-link{display:flex;align-items:center;gap:8px;padding:8px 16px;background:linear-gradient(135deg,#1da1f2,#0d8bd9);color:#fff;text-decoration:none;border-radius:25px;font-size:14px;font-weight:600;transition:all 0.3s ease;box-shadow:0 4px 12px rgba(29,161,242,0.25);animation:socialPulse 3s ease-in-out infinite}
.footer-social-link:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(29,161,242,0.4);background:linear-gradient(135deg,#0d8bd9,#1da1f2)}
.footer-social-icon{width:18px;height:18px;filter:brightness(0) invert(1)}
.footer-social-text{font-weight:700}
.trust-indicators{display:flex;gap:8px}
.trust-indicator{display:flex;align-items:center;gap:4px;padding:6px 10px;border-radius:16px;font-size:12px;font-weight:600;transition:all 0.3s ease;animation:trustFloat 4s ease-in-out infinite}
.trust-indicator.verified{background:linear-gradient(135deg,#10b981,#059669);color:#fff;box-shadow:0 2px 8px rgba(16,185,129,0.3)}
.trust-indicator.secure{background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;box-shadow:0 2px 8px rgba(59,130,246,0.3);animation-delay:1.5s}
.trust-indicator.trusted{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;box-shadow:0 2px 8px rgba(245,158,11,0.3);animation-delay:3s}
.trust-indicator:hover{transform:scale(1.05) translateY(-1px)}
.trust-icon{font-size:14px}
.trust-label{font-weight:700}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}
.btn.secondary{background:#eef3ff;color:#163773}
.btn.secondary:hover{background:#e2ecff}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-top:12px}
.tool{display:block;border:1px solid var(--border);border-radius:12px;padding:14px;background:#fff;text-decoration:none;color:inherit;transition:box-shadow .2s, transform .1s}
.tool:hover{box-shadow:0 8px 26px rgba(21,50,96,0.12);transform:translateY(-2px)}
.tool img{width:40px;height:40px}
.tool h4{margin:10px 0 6px 0}
.tool p{margin:0;color:var(--muted)}

/* Features Section Styles */
.features-section{margin:32px 0;padding:0}
.features-header{text-align:center;margin-bottom:32px}
.features-header h3{font-size:28px;font-weight:700;color:var(--text);margin:0 0 8px 0;background:linear-gradient(135deg,#2f6bff,#0aa37a);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.features-header p{font-size:16px;color:var(--muted);margin:0;max-width:600px;margin:0 auto}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px;max-width:1000px;margin-left:auto;margin-right:auto}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;box-shadow:0 4px 20px rgba(21,50,96,0.06);transition:all 0.3s ease;position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#2f6bff,#0aa37a,#e17055,#f39c12);opacity:0;transition:opacity 0.3s ease}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(21,50,96,0.12);border-color:#2f6bff}
.feature-card:hover::before{opacity:1}
.feature-icon{display:flex;align-items:center;justify-content:center;width:64px;height:64px;margin:0 auto 16px auto;background:linear-gradient(135deg,#f7faff,#eef3ff);border-radius:16px;box-shadow:0 4px 12px rgba(47,107,255,0.1)}
.feature-icon img{width:48px;height:48px}
.feature-content{text-align:center}
.feature-content h4{font-size:18px;font-weight:600;color:var(--text);margin:0 0 8px 0}
.feature-content p{font-size:14px;color:var(--muted);margin:0;line-height:1.5}

/* Quick Compress Section */
.quick-compress-section{margin:24px 0;position:relative}
.quick-compress-content{display:flex;gap:48px;align-items:flex-start}
.quick-compress-left{flex:1;max-width:500px}
.quick-compress-right{flex:1;max-width:500px}
.quick-compress-header{text-align:center;margin-bottom:24px}
.quick-compress-header h3{color:var(--brand);margin:0 0 8px 0;font-size:24px;font-weight:700}
.quick-compress-header p{color:var(--muted);margin:0;font-size:16px}
.quick-compress-area{min-height:200px;display:flex;align-items:center;justify-content:center}

/* Hero Content */
.hero-content{padding:24px 0}
.hero-content h2{font-size:32px;font-weight:700;color:var(--text);margin:0 0 16px 0;line-height:1.2;background:linear-gradient(135deg,#2f6bff,#0aa37a);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content p{font-size:18px;color:var(--muted);margin:0 0 32px 0;line-height:1.6}
.hero-features{display:flex;flex-direction:column;gap:16px}
.hero-feature{display:flex;align-items:center;gap:12px;padding:12px 16px;background:rgba(47,107,255,0.05);border-radius:12px;border:1px solid rgba(47,107,255,0.1)}
.hero-feature .feature-icon{font-size:20px}
.hero-feature span:last-child{font-weight:600;color:var(--text)}
.upload-zone{text-align:center;padding:32px;border-radius:16px;background:rgba(255,255,255,0.8);backdrop-filter:blur(10px);border:2px dashed var(--brand);transition:all 0.3s ease;cursor:pointer;max-width:400px;width:100%}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--accent);background:rgba(255,255,255,0.95);transform:translateY(-2px);box-shadow:0 8px 32px rgba(47,107,255,0.15)}
.upload-icon{font-size:48px;margin-bottom:16px;animation:bounce 2s ease-in-out infinite}
.upload-zone h4{margin:0 0 8px 0;color:var(--text);font-size:20px;font-weight:600}
.upload-zone p{margin:8px 0;color:var(--muted)}
.upload-btn{background:none;border:none;color:var(--brand);font-weight:600;text-decoration:underline;cursor:pointer;font-size:inherit}
.upload-btn:hover{color:var(--accent)}
.supported-formats{font-size:12px;color:var(--muted);margin-top:16px}
.compress-progress{text-align:center;padding:32px}
.progress-icon{font-size:48px;margin-bottom:16px;animation:spin 1s linear infinite}
.progress-bar{width:200px;height:6px;background:var(--border);border-radius:3px;margin:16px auto;overflow:hidden}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--brand),var(--accent));border-radius:3px;transition:width 0.3s ease;animation:progressPulse 1.5s ease-in-out infinite}

/* Download Modal */
.download-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.7);display:flex;align-items:center;justify-content:center;z-index:1000;backdrop-filter:blur(5px)}
.modal-content{background:var(--card);border-radius:20px;padding:32px;max-width:500px;width:90%;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,0.3);animation:modalSlideIn 0.3s ease-out}
.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.modal-header h3{margin:0;color:var(--text);font-size:22px;font-weight:700}
.modal-close{background:none;border:none;font-size:28px;color:var(--muted);cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all 0.2s ease}
.modal-close:hover{background:var(--border);color:var(--text)}
.result-comparison{display:flex;align-items:center;justify-content:space-between;margin:24px 0;padding:20px;background:linear-gradient(135deg,#f8faff,#eef6ff);border-radius:12px}
.result-item{text-align:center;flex:1}
.result-item h4{margin:0 0 8px 0;color:var(--text);font-size:14px;font-weight:600}
.file-size{margin:0;font-size:18px;font-weight:700;color:var(--brand)}
.result-arrow{font-size:24px;color:var(--accent);margin:0 16px;animation:pulse 2s ease-in-out infinite}
.savings-info{text-align:center;margin:24px 0}
.savings-text{font-size:16px;color:var(--text);margin:0}
.savings-text span{color:var(--accent);font-weight:700;font-size:18px}
.preview-container{text-align:center;margin:24px 0;padding:16px;background:var(--bg);border-radius:12px}
.modal-footer{display:flex;gap:12px;margin-top:24px;padding-top:16px;border-top:1px solid var(--border)}
.modal-footer .btn{flex:1;padding:12px 20px;font-weight:600;border-radius:12px}

/* Animations */
@keyframes shimmer{0%,100%{transform:translateX(-100%)}50%{transform:translateX(100%)}}
@keyframes bounce{0%,20%,50%,80%,100%{transform:translateY(0)}40%{transform:translateY(-10px)}60%{transform:translateY(-5px)}}
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
@keyframes progressPulse{0%,100%{opacity:1}50%{opacity:0.7}}
@keyframes modalSlideIn{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}

@media (max-width:900px){.controls{grid-template-columns:1fr 1fr}.preview-grid{grid-template-columns:1fr}.calc-grid{grid-template-columns:1fr 1fr}.features-grid{grid-template-columns:repeat(3,1fr);gap:16px}.nav{gap:16px}.dropdown-menu{min-width:240px}.social-proof{margin:0 16px}.social-link{font-size:13px;padding:6px 10px}.trust-badge{font-size:11px;padding:4px 8px}}
/* Animations */
@keyframes socialPulse{0%,100%{box-shadow:0 4px 12px rgba(29,161,242,0.25)}50%{box-shadow:0 6px 20px rgba(29,161,242,0.4);transform:translateY(-1px)}}
@keyframes trustFloat{0%,100%{transform:translateY(0)}25%{transform:translateY(-2px)}75%{transform:translateY(-1px)}}

@media (max-width:900px){.footer-content{flex-direction:column;align-items:center;text-align:center}.footer-right{align-items:center}.footer-social{align-items:center}.trust-indicators{justify-content:center}.quick-compress-content{flex-direction:column;gap:32px}.quick-compress-left,.quick-compress-right{max-width:none}.hero-content h2{font-size:28px}.hero-content p{font-size:16px}}
@media (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:24px}.upload-icon{font-size:36px}.modal-content{padding:24px;width:95%}.result-comparison{flex-direction:column;gap:16px}.result-arrow{transform:rotate(90deg)}.modal-footer{flex-direction:column}}