:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #070710;--surface: #0f1420;--card: #151b2b;--accent: #7c5cff;--accent-light: #a78bfa;--text: #e5e7eb;--text-muted: #9ca3af;--border: #2d3748;--success: #10b981;--danger: #ef4444}body{background:var(--bg);color:var(--text);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-attachment:fixed;overflow-x:hidden}body:before{content:"";position:fixed;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 20% 30%,rgba(124,92,255,.15) 0%,transparent 40%),radial-gradient(circle at 80% 70%,rgba(16,185,129,.1) 0%,transparent 40%);z-index:-1;pointer-events:none}.app-container{min-height:100vh;display:flex;flex-direction:column}.header-section{background:linear-gradient(135deg,#7c5cff1a,#10b9810d);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);padding:60px 40px 40px;position:relative;overflow:hidden}.header-section:before{content:"";position:absolute;top:-50%;right:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(124,92,255,.2) 0%,transparent 70%);border-radius:50%;filter:blur(40px);z-index:0}.header-content{position:relative;z-index:1;max-width:1400px;margin:0 auto}.header-title{font-size:3.5rem;font-weight:800;background:linear-gradient(135deg,#7c5cff,#a78bfa,#10b981);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:12px;letter-spacing:-1px}.header-subtitle{font-size:1.1rem;color:var(--text-muted);font-weight:300;letter-spacing:.5px}.main-layout{flex:1;display:grid;grid-template-columns:1fr 1.3fr;gap:32px;padding:40px;max-width:1600px;margin:0 auto;width:100%}.left-panel{display:flex;flex-direction:column;gap:24px}.card{background:#151b2b99;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(124,92,255,.2);border-radius:16px;padding:28px;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.card:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s}.card:hover{border-color:#7c5cff80;background:#151b2bcc;box-shadow:0 8px 32px #7c5cff1a;transform:translateY(-2px)}.card:hover:before{left:100%}.card-header{display:flex;align-items:center;gap:12px;margin-bottom:20px}.icon{width:28px;height:28px;color:var(--accent);stroke:var(--accent)}.card-header h2{font-size:1.4rem;font-weight:600;color:var(--text);margin:0}.card-title{font-size:1.1rem;font-weight:600;color:var(--text);margin-bottom:16px}.upload-input-wrapper{position:relative;margin-bottom:20px}.file-input{display:none}.upload-label{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;border:2px dashed rgba(124,92,255,.4);border-radius:12px;text-align:center;cursor:pointer;transition:all .3s ease;background:#7c5cff0d}.upload-label:hover{border-color:var(--accent);background:#7c5cff1a;transform:scale(1.02)}.upload-icon{font-size:3rem;margin-bottom:12px;display:block}.upload-text{font-size:1rem;font-weight:500;color:var(--text);display:block;margin-bottom:4px}.upload-hint{font-size:.85rem;color:var(--text-muted);display:block}.checkmark{font-size:2.5rem;color:var(--success);margin-bottom:12px;display:block}.file-name{font-size:.95rem;color:var(--success);word-break:break-all;font-weight:500}.file-info{display:grid;gap:12px;padding-top:16px;border-top:1px solid var(--border)}.info-item{display:flex;justify-content:space-between;align-items:center}.info-label{font-size:.9rem;color:var(--text-muted)}.info-value{font-weight:600;color:var(--accent);font-size:1rem}.btn{padding:12px 24px;border:none;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);display:inline-flex;align-items:center;gap:8px;position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;background:#fff3;border-radius:50%;transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn:hover:before{width:300px;height:300px}.btn-icon{font-size:1.1rem}.btn-generate{width:100%;padding:16px 24px;background:linear-gradient(135deg,var(--accent) 0%,var(--accent-light) 100%);color:#fff;font-size:1.1rem;font-weight:700;border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;box-shadow:0 8px 24px #7c5cff4d;position:relative;z-index:1}.btn-generate:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 36px #7c5cff66}.btn-generate:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:#7c5cff26;color:var(--accent);border:1px solid rgba(124,92,255,.4);padding:10px 18px;font-size:.9rem}.btn-secondary:hover{background:#7c5cff40;border-color:var(--accent)}.btn-small{padding:10px 16px;font-size:.85rem}.btn-download{width:100%;padding:16px 24px;background:linear-gradient(135deg,var(--success) 0%,#059669 100%);color:#fff;font-size:1.1rem;font-weight:700;border:none;border-radius:12px;box-shadow:0 8px 24px #10b9814d;margin-bottom:16px}.btn-download:hover{transform:translateY(-2px);box-shadow:0 12px 36px #10b98166}.spinner{display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.url-card{background:#10b9810d;border:1px solid rgba(16,185,129,.3)}.url-display{display:flex;flex-direction:column;gap:12px}.url-link{color:var(--accent);text-decoration:none;padding:12px;background:#7c5cff1a;border-radius:8px;word-break:break-all;font-size:.9rem;font-weight:500;transition:all .2s ease;border:1px solid rgba(124,92,255,.2)}.url-link:hover{background:#7c5cff33;border-color:var(--accent)}.right-panel{display:flex;flex-direction:column;gap:20px;position:sticky;top:40px;max-height:calc(100vh - 80px)}.preview-header{display:flex;justify-content:space-between;align-items:center;padding:0 4px;margin-bottom:8px}.preview-header h3{font-size:1.2rem;font-weight:600;color:var(--text)}.preview-badge{background:linear-gradient(135deg,var(--success),#059669);color:#fff;padding:6px 14px;border-radius:20px;font-size:.8rem;font-weight:600}.preview-wrapper{flex:1;background:#151b2b99;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(124,92,255,.2);border-radius:16px;overflow:hidden;box-shadow:0 8px 32px #7c5cff1a;min-height:500px}.preview-iframe{width:100%;height:100%;border:none;background:var(--bg)}.download-section{padding-top:8px}.hint-text{font-size:.85rem;color:var(--text-muted);margin-top:12px;text-align:center;font-weight:300}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:500px;text-align:center;background:#151b2b99;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(124,92,255,.2);border-radius:16px;padding:40px 20px}.empty-icon{font-size:4rem;margin-bottom:20px;opacity:.6}.empty-state h3{font-size:1.5rem;color:var(--text);margin-bottom:12px;font-weight:600}.empty-state p{color:var(--text-muted);font-size:1rem;line-height:1.6;max-width:280px}@media(max-width:1100px){.main-layout{grid-template-columns:1fr;gap:24px}.right-panel{position:static;max-height:none}.header-title{font-size:2.5rem}}@media(max-width:700px){.header-section{padding:40px 20px 30px}.header-title{font-size:2rem}.header-subtitle{font-size:.95rem}.main-layout{padding:20px;gap:20px}.card{padding:20px}.card-header h2{font-size:1.2rem}.btn-generate,.btn-download{padding:14px 20px;font-size:1rem}.upload-label{padding:30px 15px}.upload-icon{font-size:2.5rem}}@keyframes slideInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.card{animation:slideInUp .6s ease-out}.card:nth-child(2){animation-delay:.1s}.card:nth-child(3){animation-delay:.2s}