@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root{--bg-deep:#05060f;--bg-primary:#0a0d1a;--bg-secondary:#111528;--bg-tertiary:#181d35;--bg-card:#0f142abf;--bg-card-hover:#161c37d9;--bg-glass:#0c102499;--bg-input:#080c1ccc;--border-subtle:#6478c81f;--border-accent:#648cff40;--border-glow:#78a0ff66;--text-primary:#e8ecf8;--text-secondary:#8b93b8;--text-muted:#555d80;--text-accent:#7ea0ff;--accent-primary:#5b7cfa;--accent-secondary:#7e5bfa;--accent-nebula:#b44dff;--accent-star:#ffd866;--accent-success:#4dff91;--accent-warning:#ffb44d;--accent-danger:#ff4d6a;--gradient-header:linear-gradient(135deg, #5b7cfa 0%, #b44dff 50%, #ff6b9d 100%);--gradient-accent:linear-gradient(135deg, #5b7cfa, #7e5bfa);--gradient-nebula:linear-gradient(135deg, #1a1040, #0d1a3a, #0a2040);--gradient-glow:radial-gradient(ellipse at 50% 0%, #5b7cfa1f 0%, transparent 60%);--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 4px 20px #0006;--shadow-lg:0 8px 40px #00000080;--shadow-glow:0 0 30px #5b7cfa26;--font-body:"Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono:"JetBrains Mono", "Fira Code", monospace;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:20px;--radius-full:9999px;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth;font-size:15px}body{font-family:var(--font-body);background:var(--bg-deep);color:var(--text-primary);overscroll-behavior-y:none;min-height:100vh;line-height:1.5;overflow-x:hidden}body:before{content:"";background:var(--gradient-glow);pointer-events:none;z-index:0;width:120%;height:60%;position:fixed;top:-30%;left:50%;transform:translate(-50%)}#app{z-index:1;max-width:1600px;padding:var(--space-lg);gap:var(--space-lg);grid-template-rows:auto 1fr;grid-template-columns:380px 1fr;min-height:100vh;margin:0 auto;display:grid;position:relative}.app-header{justify-content:space-between;align-items:center;gap:var(--space-md);padding:var(--space-sm) 0 var(--space-md) 0;border-bottom:1px solid #ffffff0f;grid-column:1/-1;display:flex}.app-logo{align-items:center;gap:var(--space-md);display:flex}.app-logo-icon{border-radius:var(--radius-md);background:0 0;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex;overflow:hidden;box-shadow:0 0 16px #5b7cfa73}.app-logo-img{object-fit:cover;width:100%;height:100%;display:block}.app-title-group{flex-direction:column;gap:2px;display:flex}.app-title-group h1{background:var(--gradient-header);-webkit-text-fill-color:transparent;letter-spacing:.02em;-webkit-background-clip:text;background-clip:text;font-size:1.65rem;font-weight:800;line-height:1.15}.app-intro{color:var(--text-secondary);letter-spacing:.01em;max-width:650px;font-size:.82rem;font-weight:400;line-height:1.35}.app-subtitle{color:var(--text-muted);letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--border-subtle);border-radius:var(--radius-full);white-space:nowrap;background:#ffffff08;margin-left:auto;padding:4px 12px;font-size:.75rem;font-weight:500}.control-panel{gap:var(--space-md);max-height:calc(100vh - 120px);padding-right:var(--space-sm);scrollbar-width:thin;scrollbar-color:var(--border-accent) transparent;flex-direction:column;display:flex;overflow-y:auto}.control-panel::-webkit-scrollbar{width:5px}.control-panel::-webkit-scrollbar-track{background:0 0}.control-panel::-webkit-scrollbar-thumb{background:var(--border-accent);border-radius:var(--radius-full)}.card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-lg);-webkit-backdrop-filter:blur(20px);transition:border-color var(--transition-base), box-shadow var(--transition-base)}.card:hover{border-color:var(--border-accent);box-shadow:var(--shadow-glow)}.card-header{align-items:center;gap:var(--space-sm);margin-bottom:var(--space-md);display:flex}.card-icon{border-radius:var(--radius-sm);background:#5b7cfa1f;justify-content:center;align-items:center;width:32px;height:32px;font-size:1.1rem;display:flex}.card-title{color:var(--text-primary);letter-spacing:.01em;font-size:.9rem;font-weight:600}.card-badge{border-radius:var(--radius-full);color:var(--text-accent);text-transform:uppercase;letter-spacing:.06em;background:#5b7cfa26;margin-left:auto;padding:2px 8px;font-size:.65rem;font-weight:500}.card-badge.optional{color:var(--accent-warning);background:#ffb84d1f}.upload-zone{border:2px dashed var(--border-accent);border-radius:var(--radius-md);padding:var(--space-xl) var(--space-md);text-align:center;cursor:pointer;transition:all 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6px;font-size:.85rem}.upload-remove:hover{background:#ff4d6a26}.control-group{margin-bottom:var(--space-md)}.control-group:last-child{margin-bottom:0}.control-row{align-items:center;gap:var(--space-md);margin-bottom:var(--space-sm);display:flex}.control-label{color:var(--text-secondary);margin-bottom:var(--space-xs);align-items:center;gap:var(--space-xs);font-size:.8rem;font-weight:500;display:flex}.control-value{font-family:var(--font-mono);color:var(--text-accent);text-align:right;min-width:50px;margin-left:auto;font-size:.75rem}input[type=range]{appearance:none;border-radius:var(--radius-full);background:var(--bg-input);cursor:pointer;border:1px solid var(--border-subtle);outline:none;width:100%;height:6px}input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--accent-primary);cursor:pointer;width:18px;height:18px;transition:transform var(--transition-fast), box-shadow var(--transition-fast);border-radius:50%;box-shadow:0 0 10px 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#5b7cfa66}.effect-controls{opacity:0;max-height:0;transition:max-height var(--transition-slow), opacity var(--transition-base), margin var(--transition-base);margin-top:0;overflow:hidden}.effect-controls.visible{opacity:1;max-height:500px;margin-top:var(--space-md)}.btn-group{background:var(--bg-input);border-radius:var(--radius-sm);border:1px solid var(--border-subtle);gap:2px;padding:2px;display:flex}.btn-group button{padding:var(--space-xs) var(--space-sm);color:var(--text-muted);font-size:.75rem;font-weight:500;font-family:var(--font-body);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;border-radius:4px;flex:1}.btn-group button.active{background:var(--accent-primary);color:#fff;box-shadow:0 0 10px #5b7cfa4d}.btn-group button:hover:not(.active){color:var(--text-primary);background:#5b7cfa1a}.preview-area{gap:var(--space-md);top:var(--space-lg);flex-direction:column;align-self:start;display:flex;position:sticky}.preview-container{background:var(--bg-primary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);aspect-ratio:var(--aspect-ratio,16 / 9);width:100%;max-height:min(650px,100vh - 220px);max-width:min(100%, calc(min(650px, calc(100vh - 220px)) * var(--aspect-factor,1.7778)));box-shadow:var(--shadow-lg), 0 0 35px #000000b3;-webkit-user-select:none;user-select:none;touch-action:none;cursor:grab;transition:aspect-ratio var(--transition-base), max-width var(--transition-base);justify-content:center;align-items:center;margin:0 auto;display:flex;position:relative;overflow:hidden}.preview-container.is-dragging{cursor:grabbing}.preview-container canvas{object-fit:contain;pointer-events:none;width:100%;height:100%;display:block}.aspect-btn-grid{background:var(--bg-input);border-radius:var(--radius-md);border:1px solid var(--border-subtle);grid-template-columns:repeat(4,1fr);gap:6px;padding:4px;display:grid}.aspect-pill{border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast);font-family:var(--font-body);background:0 0;border:1px solid #0000;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:8px 4px;display:flex}.aspect-pill:hover:not(.active){color:var(--text-primary);background:#5b7cfa14;border-color:#5b7cfa33}.aspect-pill.active{border-color:var(--accent-primary);color:#fff;background:linear-gradient(135deg,#5b7cfa47,#7e5bfa59);box-shadow:0 0 12px #5b7cfa59}.aspect-pill-box{opacity:.85;border:1.5px 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#5b7cfa66}.fs-hud-time{font-family:var(--font-mono);color:var(--text-secondary);text-align:center;flex-shrink:0;min-width:38px;font-size:.75rem}.fs-hud-scrubber{accent-color:var(--accent-primary);cursor:pointer;flex:1;height:4px}.preview-placeholder{text-align:center;color:var(--text-muted);padding:var(--space-2xl);pointer-events:none;z-index:5;flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.preview-placeholder .placeholder-icon{margin-bottom:var(--space-md);opacity:.35;font-size:3.5rem}.preview-placeholder h3{color:var(--text-secondary);margin-bottom:var(--space-xs);font-size:1.1rem;font-weight:500}.preview-placeholder p{max-width:300px;margin:0 auto;font-size:.85rem}.preview-status{top:var(--space-md);left:var(--space-md);align-items:center;gap:var(--space-sm);color:var(--text-primary);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:var(--space-xs) var(--space-md);border-radius:var(--radius-full);opacity:0;transition:opacity var(--transition-base);pointer-events:none;background:#0009;font-size:.75rem;font-weight:500;display:flex;position:absolute}.preview-status.visible{opacity:1}.preview-status .status-dot{background:var(--accent-success);border-radius:50%;width:8px;height:8px;animation:1.5s infinite pulse}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.loading-overlay{-webkit-backdrop-filter:blur(8px);justify-content:center;align-items:center;gap:var(--space-md);z-index:20;opacity:0;pointer-events:none;background:#0a0e1ac7;flex-direction:column;transition:opacity .2s;display:flex;position:absolute;inset:0}.loading-overlay.visible{opacity:1;pointer-events:auto}.loading-spinner{border:3px solid #ffffff1f;border-top-color:var(--accent-cyan);border-right-color:var(--accent-purple);border-radius:50%;width:44px;height:44px;animation:.8s linear infinite spin}.loading-message{color:var(--text-primary);text-shadow:0 2px 10px #0009;letter-spacing:.02em;font-size:.95rem;font-weight:500}@keyframes spin{to{transform:rotate(360deg)}}.action-bar{align-items:center;gap:var(--space-md);display:flex}.btn{padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-md);font-family:var(--font-body);cursor:pointer;transition:all var(--transition-base);align-items:center;gap:var(--space-sm);border:none;font-size:.85rem;font-weight:600;display:flex;position:relative;overflow:hidden}.btn:before{content:"";opacity:0;transition:opacity var(--transition-fast);background:linear-gradient(135deg,#ffffff1a,#0000);position:absolute;inset:0}.btn:hover:before{opacity:1}.btn-primary{background:var(--gradient-accent);color:#fff;box-shadow:0 4px 15px #5b7cfa4d}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 25px #5b7cfa73}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-subtle)}.btn-secondary:hover{border-color:var(--border-accent);background:var(--bg-card-hover)}.btn-secondary:disabled{opacity:.4;cursor:not-allowed}.btn-icon{font-size:1rem}.btn-export{color:#05060f;background:linear-gradient(135deg,#4dff91,#00c9a7);box-shadow:0 4px 15px #4dff9140}.btn-export:hover{transform:translateY(-1px);box-shadow:0 6px 25px #4dff9166}.btn-export:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}.progress-container{gap:var(--space-xs);flex-direction:column;display:none}.progress-container.visible{display:flex}.progress-bar-wrapper{background:var(--bg-input);border-radius:var(--radius-full);border:1px solid 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