:root{--bg-base:#0a0a0f;--bg-surface:#13131a;--bg-elevated:#1a1a24;--bg-hover:#22222e;--bg-active:#2a2a38;--border-subtle:#ffffff0f;--border-default:#ffffff1a;--border-strong:#ffffff29;--text-primary:#f0f0f5;--text-secondary:#9d9db5;--text-tertiary:#6b6b82;--text-disabled:#44445a;--accent:#8b42f0;--accent-hover:#a268f3;--accent-muted:#8b42f026;--accent-glow:#8b42f04d;--accent2:#13daec;--accent2-muted:#13daec1f;--success:#2dd272;--success-muted:#2dd2721f;--warning:#f4af25;--warning-muted:#f4af251f;--error:#e64d4d;--error-muted:#e64d4d1f;--space-xs:4px;--space-sm:8px;--space-md:12px;--space-lg:16px;--space-xl:24px;--space-2xl:32px;--space-3xl:48px;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--radius-full:9999px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "Fira Code", monospace;--text-xs:.7rem;--text-sm:.8rem;--text-base:.875rem;--text-lg:1rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:2rem;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-glow:0 0 20px var(--accent-glow);--transition-fast:.12s ease;--transition-base:.2s ease;--transition-slow:.35s ease;--glass-bg:#13131abf;--glass-blur:16px;--toolbar-height:56px;--sidebar-width:280px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-sans);background:var(--bg-base);color:var(--text-primary);width:100vw;height:100vh;line-height:1.5;overflow:hidden}#app{grid-template-rows:var(--toolbar-height) 1fr;grid-template-columns:1fr var(--sidebar-width);grid-template-areas:"toolbar toolbar""canvas sidebar";width:100vw;height:100vh;display:grid;overflow:hidden}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}::selection{background:var(--accent-muted);color:var(--text-primary)}.toolbar{align-items:center;gap:var(--space-sm);padding:0 var(--space-lg);background:var(--bg-surface);border-bottom:1px solid var(--border-subtle);z-index:100;grid-area:toolbar;display:flex;position:relative}.toolbar:after{content:"";background:linear-gradient(90deg, transparent, var(--accent-glow), transparent);opacity:.5;height:1px;position:absolute;bottom:-1px;left:0;right:0}.toolbar__brand{align-items:center;gap:var(--space-sm);margin-right:var(--space-lg);-webkit-user-select:none;user-select:none;display:flex}.toolbar__logo{border-radius:var(--radius-sm);width:28px;height:28px}.toolbar__title{font-size:var(--text-lg);background:linear-gradient(135deg, var(--accent), var(--accent2));-webkit-text-fill-color:transparent;letter-spacing:-.02em;-webkit-background-clip:text;background-clip:text;font-weight:700}.toolbar__divider{background:var(--border-default);width:1px;height:28px;margin:0 var(--space-sm)}.toolbar__group{align-items:center;gap:var(--space-xs);display:flex}.toolbar__spacer{flex:1}.btn{align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);border:1px solid var(--border-subtle);border-radius:var(--radius-md);background:var(--bg-elevated);color:var(--text-secondary);font-family:var(--font-sans);font-size:var(--text-sm);cursor:pointer;transition:all var(--transition-base);white-space:nowrap;-webkit-user-select:none;user-select:none;font-weight:500;display:inline-flex;position:relative;overflow:hidden}.btn:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary);border-color:var(--border-strong);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.btn:active:not(:disabled){transform:translateY(0)}.btn:disabled{opacity:.35;cursor:not-allowed}.btn--primary{background:linear-gradient(135deg, var(--accent), #ab30e8);color:#fff;box-shadow:0 2px 12px var(--accent-glow);border-color:#0000}.btn--primary:hover:not(:disabled){background:linear-gradient(135deg, var(--accent-hover), #b851ec);box-shadow:0 4px 20px var(--accent-glow);color:#fff;border-color:#0000}.btn--accent2{background:linear-gradient(135deg, var(--accent2), #1aa1e6);color:#fff;box-shadow:0 2px 12px var(--accent2-muted);border-color:#0000}.btn--accent2:hover:not(:disabled){box-shadow:0 4px 20px var(--accent2-muted);color:#fff;border-color:#0000}.btn--icon{padding:var(--space-sm);justify-content:center;min-width:36px;min-height:36px}.btn__icon{flex-shrink:0;width:18px;height:18px}.canvas-view{background-color:#1a1a24;background-image:linear-gradient(45deg,#22222e 25%,#0000 25%),linear-gradient(-45deg,#22222e 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#22222e 75%),linear-gradient(-45deg,#0000 75%,#22222e 75%);background-position:0 0,0 10px,10px -10px,-10px 0;background-size:20px 20px;grid-area:canvas;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.canvas-view__empty{align-items:center;gap:var(--space-lg);color:var(--text-tertiary);text-align:center;-webkit-user-select:none;user-select:none;flex-direction:column;animation:.6s fadeIn;display:flex}.canvas-view__empty-icon{border-radius:var(--radius-xl);background:var(--bg-elevated);border:2px dashed var(--border-default);width:80px;height:80px;transition:all var(--transition-base);justify-content:center;align-items:center;display:flex}.canvas-view__empty-icon svg{opacity:.4;width:36px;height:36px}.canvas-view__empty-title{font-size:var(--text-xl);color:var(--text-secondary);font-weight:600}.canvas-view__empty-subtitle{font-size:var(--text-sm);max-width:320px;line-height:1.6}.canvas-view__empty kbd{background:var(--bg-elevated);border:1px solid var(--border-default);border-radius:var(--radius-sm);font-family:var(--font-sans);font-size:var(--text-xs);color:var(--text-secondary);padding:2px 6px;font-weight:600;display:inline-block}.canvas-view__image-wrapper{transition:transform var(--transition-base);justify-content:center;align-items:center;display:flex;position:relative}.canvas-view__image-wrapper img,.canvas-view__image-wrapper canvas{object-fit:contain;border-radius:var(--radius-sm);max-width:90%;max-height:85vh;box-shadow:var(--shadow-lg)}.canvas-view__controls{bottom:var(--space-lg);align-items:center;gap:var(--space-xs);padding:var(--space-xs);background:var(--glass-bg);-webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border-subtle);border-radius:var(--radius-full);z-index:10;display:flex;position:absolute;left:50%;transform:translate(-50%)}.canvas-view__zoom-label{font-size:var(--text-xs);color:var(--text-secondary);text-align:center;-webkit-user-select:none;user-select:none;min-width:42px;font-weight:600}.sidebar{background:var(--bg-surface);border-left:1px solid var(--border-subtle);flex-direction:column;grid-area:sidebar;display:flex;overflow:hidden auto}.sidebar__section{padding:var(--space-lg);border-bottom:1px solid var(--border-subtle)}.sidebar__section-title{font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.08em;color:var(--text-tertiary);margin-bottom:var(--space-md);font-weight:600}.sidebar__empty{height:100%;padding:var(--space-xl);text-align:center;color:var(--text-tertiary);font-size:var(--text-sm);flex-direction:column;justify-content:center;align-items:center;display:flex}.info-row{padding:var(--space-sm) 0;justify-content:space-between;align-items:center;display:flex}.info-row__label{font-size:var(--text-sm);color:var(--text-tertiary)}.info-row__value{font-size:var(--text-sm);color:var(--text-primary);font-variant-numeric:tabular-nums;font-weight:500}.format-badge{border-radius:var(--radius-full);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.04em;align-items:center;padding:2px 8px;font-weight:600;display:inline-flex}.format-badge--png{background:var(--accent-muted);color:var(--accent)}.format-badge--svg{background:var(--accent2-muted);color:var(--accent2)}.format-badge--jpg{background:var(--warning-muted);color:var(--warning)}.slider-control{gap:var(--space-sm);flex-direction:column;display:flex}.slider-control__header{justify-content:space-between;align-items:center;display:flex}.slider-control__label{font-size:var(--text-sm);color:var(--text-secondary)}.slider-control__value{font-size:var(--text-xs);color:var(--accent);font-variant-numeric:tabular-nums;font-weight:600}.slider-control input[type=range]{appearance:none;border-radius:var(--radius-full);background:var(--bg-active);cursor:pointer;outline:none;width:100%;height:4px}.slider-control input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--accent);width:16px;height:16px;box-shadow:0 0 8px var(--accent-glow);cursor:pointer;transition:transform var(--transition-fast);border-radius:50%}.slider-control input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}.history-list{gap:var(--space-xs);flex-direction:column;list-style:none;display:flex}.history-item{align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm);font-size:var(--text-sm);color:var(--text-secondary);background:var(--bg-elevated);border:1px solid var(--border-subtle);animation:.3s slideIn;display:flex}.history-item__icon{opacity:.6;flex-shrink:0;width:16px;height:16px}.history-item__time{font-size:var(--text-xs);color:var(--text-tertiary);margin-left:auto}.dropzone-overlay{z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);opacity:0;pointer-events:none;transition:opacity var(--transition-base);background:#0a0a0fd9;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.dropzone-overlay.active{opacity:1;pointer-events:all}.dropzone-overlay__box{justify-content:center;align-items:center;gap:var(--space-lg);border:2px dashed var(--accent);border-radius:var(--radius-xl);background:var(--accent-muted);flex-direction:column;width:420px;height:320px;animation:1.5s infinite pulse-border;display:flex}.dropzone-overlay__icon{width:56px;height:56px;color:var(--accent);animation:2s ease-in-out infinite float}.dropzone-overlay__text{font-size:var(--text-lg);color:var(--text-primary);font-weight:600}.dropzone-overlay__subtext{font-size:var(--text-sm);color:var(--text-secondary)}.progress-overlay{z-index:2000;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);opacity:0;pointer-events:none;transition:opacity var(--transition-base);background:#0a0a0fe6;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.progress-overlay.active{opacity:1;pointer-events:all}.progress-card{width:380px;padding:var(--space-2xl);background:var(--bg-surface);border:1px solid var(--border-default);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg), 0 0 60px var(--accent-glow);align-items:center;gap:var(--space-lg);flex-direction:column;animation:.3s scaleIn;display:flex}.progress-card__spinner{border:3px solid var(--border-default);border-top-color:var(--accent);border-radius:50%;width:48px;height:48px;animation:.8s linear infinite spin}.progress-card__title{font-size:var(--text-lg);color:var(--text-primary);font-weight:600}.progress-card__status{font-size:var(--text-sm);color:var(--text-secondary);text-align:center}.progress-bar{background:var(--bg-active);border-radius:var(--radius-full);width:100%;height:6px;overflow:hidden}.progress-bar__fill{background:linear-gradient(90deg, var(--accent), var(--accent2));border-radius:var(--radius-full);height:100%;transition:width var(--transition-base);box-shadow:0 0 12px var(--accent-glow)}.progress-card__cancel{margin-top:var(--space-sm)}.toast-container{bottom:var(--space-xl);right:var(--space-xl);z-index:3000;gap:var(--space-sm);flex-direction:column;display:flex;position:fixed}.toast{align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-lg);background:var(--glass-bg);-webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border-default);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);font-size:var(--text-sm);color:var(--text-primary);max-width:360px;animation:.3s slideInRight;display:flex}.toast--success{border-color:var(--success)}.toast--error{border-color:var(--error)}.toast--warning{border-color:var(--warning)}.toast__icon{flex-shrink:0;width:18px;height:18px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes pulse-border{0%,to{border-color:var(--accent)}50%{border-color:var(--accent2)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@media (width<=900px){#app{grid-template-columns:1fr;grid-template-areas:"toolbar""canvas"}.sidebar{display:none}}@media (width<=600px){.toolbar{padding:0 var(--space-sm);gap:var(--space-xs)}.btn span,.toolbar__title{display:none}}