:root{--bg: #010307;--bg-card: rgba(8, 10, 18, .7);--bg-card-solid: #080a12;--bg-elevated: rgba(15, 17, 28, .8);--bg-hover: rgba(252, 178, 96, .06);--border: rgba(255, 255, 255, .06);--border-hover: rgba(255, 255, 255, .12);--border-accent: rgba(252, 178, 96, .3);--text: #e8e8ee;--text-secondary: #8b8b9e;--text-tertiary: #7a7a92;--accent: #FCB260;--accent-glow: rgba(252, 178, 96, .15);--accent-hover: #fdc480;--accent-dim: rgba(252, 178, 96, .08);--success: #4ade80;--error: #f87171;--warning: #fbbf24;--radius-sm: 8px;--radius: 12px;--radius-lg: 16px;--radius-xl: 20px;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--transition: .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: .4s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;position:relative}#app{position:relative;max-width:700px;margin:0 auto;padding:48px 20px 32px;min-height:100vh;display:flex;flex-direction:column}.header{text-align:center;margin-bottom:36px}.logo-link{display:inline-block;margin-bottom:12px;transition:transform .3s cubic-bezier(.25,.46,.45,.94)}.logo-link:hover{transform:scale(1.08)}.logo-link:focus-visible{outline-offset:4px}.logo{height:15px;width:auto;display:block}.header-title{font-size:39px;font-weight:700;color:var(--text);margin-bottom:6px;letter-spacing:-.02em}.header-subtitle{font-size:14px;color:var(--text-secondary);font-weight:400}.card{background:var(--bg-card);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid var(--border);border-radius:var(--radius-xl);padding:24px;margin-bottom:16px;transition:opacity var(--transition-slow),transform var(--transition-slow)}.card[hidden]{display:none}.card-header{display:flex;align-items:center;gap:14px;margin-bottom:20px}.card-header h2{font-size:17px;font-weight:600;flex:1}.card-header p{font-size:13px;color:var(--text-secondary)}.card-header-text{display:flex;flex-direction:column;gap:2px}.card-icon{flex-shrink:0}.dropzone{border:1.5px dashed rgba(255,255,255,.1);border-radius:var(--radius-lg);padding:36px 24px;text-align:center;transition:border-color var(--transition),background-color var(--transition),box-shadow var(--transition),transform var(--transition);cursor:pointer;background:#0003}.dropzone:hover,.dropzone.dragover{border-color:var(--accent);background:var(--accent-dim);box-shadow:inset 0 0 30px #fcb26008}.dropzone.dragover{transform:scale(1.01)}.dropzone-content{display:flex;flex-direction:column;align-items:center;gap:8px}.dropzone-icon{color:var(--text-tertiary);margin-bottom:4px;transition:color var(--transition)}.dropzone:hover .dropzone-icon,.dropzone.dragover .dropzone-icon{color:var(--accent)}.dropzone-text{font-size:14px;color:var(--text-secondary)}.dropzone-hint{font-size:12px;color:var(--text-tertiary);font-weight:500}:focus{outline:none}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font);font-weight:600;border:none;cursor:pointer;transition:background-color var(--transition),color var(--transition),border-color var(--transition),box-shadow var(--transition),transform var(--transition),opacity var(--transition);white-space:nowrap;background:none}.btn--accent{background:var(--accent);color:#000;padding:10px 24px;border-radius:999px;font-size:13px}.btn--accent:hover{background:var(--accent-hover);box-shadow:0 0 20px #fcb26040}.btn--accent:focus-visible{outline-color:#fff;box-shadow:0 0 0 4px #fcb2604d}.btn--accent:active{transform:scale(.97)}.btn--accent:disabled{opacity:.35;cursor:not-allowed;box-shadow:none}.btn--accent:disabled:hover{background:var(--accent);box-shadow:none}.btn--ghost{background:transparent;color:var(--text-secondary);padding:10px 20px;border-radius:999px;font-size:13px;border:1px solid var(--border)}.btn--ghost:hover{color:var(--text);border-color:var(--border-hover);background:var(--bg-hover)}.btn--ghost:focus-visible{border-color:var(--accent)}.btn--sm{padding:6px 14px;font-size:12px}.btn--lg{padding:14px 32px;font-size:15px}.btn--full{width:100%}.file-list{display:flex;flex-direction:column;gap:8px}.file-item{display:flex;align-items:center;gap:12px;padding:12px 14px;background:#0003;border-radius:var(--radius);border:1px solid var(--border);transition:border-color var(--transition);animation:fade-in .3s ease-out}.file-item--error{border-color:#f871714d}.file-item--done{border-color:#4ade8033}.file-icon{flex-shrink:0;width:36px;height:36px;border-radius:var(--radius-sm);background:var(--accent-dim);display:flex;align-items:center;justify-content:center}.file-icon svg{width:18px;height:18px;stroke:var(--accent)}.file-info{flex:1;min-width:0}.file-name{font-size:13px;font-weight:500;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta{font-size:11px;color:var(--text-tertiary);margin-top:2px}.file-status{flex-shrink:0;font-size:11px;font-weight:600;padding:3px 10px;border-radius:999px}.file-status--queued{color:var(--text-tertiary);background:#ffffff0a}.file-status--processing{color:var(--accent);background:var(--accent-dim)}.file-status--done{color:var(--success);background:#4ade801a}.file-status--error{color:var(--error);background:#f871711a}.file-remove{flex-shrink:0;background:none;border:none;color:var(--text-tertiary);cursor:pointer;padding:8px;border-radius:var(--radius-sm);transition:color var(--transition),background var(--transition);display:flex;align-items:center;justify-content:center;min-width:32px;min-height:32px}.file-remove:hover{color:var(--error);background:#f871711a}.controls-row{display:flex;gap:20px;margin-bottom:20px}.control-group{flex:1;display:flex;flex-direction:column}.control-label{display:block;font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px}.grid-selector{display:flex;gap:6px}.grid-option{flex:1;padding:12px 6px;background:#0000004d;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;text-align:center;font-family:var(--font);transition:background-color var(--transition),border-color var(--transition),color var(--transition);position:relative}.grid-option .tooltip{position:absolute;bottom:calc(100% + 10px);left:50%;transform:translate(-50%);padding:8px 12px;background:var(--bg-card-solid);border:1px solid var(--border-hover);border-radius:var(--radius-sm);font-size:11px;font-weight:400;color:var(--text-secondary);white-space:nowrap;pointer-events:none;opacity:0;transition:opacity var(--transition);box-shadow:0 4px 16px #00000080;z-index:10}.grid-option .tooltip:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);border:5px solid transparent;border-top-color:var(--border-hover)}.grid-option:hover .tooltip{opacity:1}.grid-option:hover{border-color:var(--border-hover);color:var(--text)}.grid-option:focus-visible{outline-offset:-1px}.grid-option.active{border-color:var(--accent);background:var(--accent-dim);color:var(--accent)}.grid-size{display:block;font-size:18px;font-weight:700;line-height:1}.grid-label{display:block;font-size:10px;font-weight:500;opacity:.5;margin-top:4px}.format-selector{display:flex;gap:6px;flex:1}.format-option{flex:1;display:flex;align-items:center;justify-content:center;padding:12px 6px;background:#0000004d;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;text-align:center;font-family:var(--font);font-size:13px;font-weight:600;transition:background-color var(--transition),border-color var(--transition),color var(--transition)}.format-option:hover{border-color:var(--border-hover);color:var(--text)}.format-option:focus-visible{outline-offset:-1px}.format-option.active{border-color:var(--accent);background:var(--accent-dim);color:var(--accent)}.progress-header{display:flex;justify-content:space-between;margin-bottom:10px}.progress-label{font-size:13px;color:var(--text-secondary)}.progress-pct{font-size:13px;font-weight:600;color:var(--accent)}.progress-bar{height:6px;background:#ffffff0f;border-radius:999px;overflow:hidden}.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--accent-hover));border-radius:999px;transition:width .15s ease-out;box-shadow:0 0 12px #fcb26066}.card--download{text-align:center;padding:32px 24px}.download-icon{margin-bottom:12px}.download-text{font-size:15px;font-weight:600;color:var(--text);margin-bottom:20px}.download-actions{display:flex;justify-content:center;gap:12px}.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(0,0,0,.2);border-top-color:#000;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.notifications{position:fixed;bottom:24px;left:50%;transform:translate(-50%);z-index:100;display:flex;flex-direction:column-reverse;gap:8px;pointer-events:none;width:90%;max-width:440px}.toast{pointer-events:auto;display:flex;align-items:center;gap:10px;padding:12px 16px;background:var(--bg-card-solid);border:1px solid var(--border);border-radius:var(--radius);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);font-size:13px;color:var(--text);animation:toast-in .3s ease-out;box-shadow:0 8px 32px #00000080}.toast--error{border-color:#f871714d}.toast--error .toast-icon{color:var(--error)}.toast--success .toast-icon{color:var(--success)}.toast-icon{flex-shrink:0}.toast-message{flex:1;line-height:1.4}.toast-close{flex-shrink:0;background:none;border:none;color:var(--text-tertiary);cursor:pointer;padding:6px;border-radius:4px;transition:color var(--transition),background var(--transition);display:flex;align-items:center;justify-content:center}.toast-close:hover{color:var(--text);background:#ffffff0f}@keyframes toast-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.promo-banner{display:block;margin-top:16px;border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--border);text-decoration:none;transition:border-color var(--transition),box-shadow var(--transition)}.promo-banner:hover{border-color:var(--border-hover);box-shadow:0 0 24px #fcb2600f}.promo-img{display:block;width:100%;height:auto}.seo-section{margin-top:48px;padding-top:32px;border-top:1px solid var(--border)}.seo-heading{font-size:20px;font-weight:700;color:var(--text);margin-bottom:24px;letter-spacing:-.01em}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.step{text-align:center;padding:20px 12px;background:#0003;border:1px solid var(--border);border-radius:var(--radius)}.step-number{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--accent-dim);color:var(--accent);font-size:14px;font-weight:700;margin-bottom:12px;border:1px solid rgba(252,178,96,.2)}.step-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px}.step-text{font-size:13px;color:var(--text-secondary);line-height:1.5}.formats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:20px}.format-card{padding:20px;background:#0003;border:1px solid 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strong{min-width:auto}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media(max-width:360px){#app{padding:24px 12px 20px}.header-title{font-size:22px}.header-subtitle{font-size:13px}.card{padding:16px}.footer-badge{font-size:11px;padding:6px 12px}}