:root{--color-bg-primary: #0a0a0f;--color-bg-secondary: #12121a;--color-bg-tertiary: #1a1a24;--color-bg-elevated: #22222e;--color-bg-hover: #2a2a38;--color-border: rgba(255, 255, 255, .08);--color-border-subtle: rgba(255, 255, 255, .04);--color-border-focus: rgba(0, 210, 255, .5);--color-text-primary: #f0f0f5;--color-text-secondary: #a0a0b0;--color-text-muted: #606070;--color-accent: #00d4ff;--color-accent-hover: #00b8e0;--color-accent-subtle: rgba(0, 212, 255, .1);--color-accent-glow: rgba(0, 212, 255, .3);--color-success: #00e676;--color-success-subtle: rgba(0, 230, 118, .1);--color-error: #ff5252;--color-error-subtle: rgba(255, 82, 82, .1);--color-warning: #ffab40;--color-warning-subtle: rgba(255, 171, 64, .1);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "SF Mono", Consolas, monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 2rem;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 20px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px var(--color-accent-glow);--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{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:var(--font-sans);background:var(--color-bg-primary);color:var(--color-text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at 50% 0%,rgba(0,212,255,.03) 0%,transparent 50%),radial-gradient(ellipse at 100% 100%,rgba(120,0,255,.02) 0%,transparent 50%);pointer-events:none;z-index:-1}.app{max-width:720px;margin:0 auto;padding:var(--space-6) var(--space-4);min-height:100vh}@media(min-width:960px){.app{max-width:1600px;display:grid;grid-template-columns:minmax(0,2fr) minmax(0,3fr);grid-template-rows:auto 1fr auto auto;grid-template-areas:"topbar   topbar" "generate tracks" "stego    stego" "footer   footer";gap:0 var(--space-5);align-items:stretch;padding:0 var(--space-6);min-height:100vh}.topbar{grid-area:topbar}#generate-card{grid-area:generate;display:flex;flex-direction:column}#tasks-card{grid-area:tracks}#stego-card{grid-area:stego}#generate-card form{flex:1;display:flex;flex-direction:column}#simple-mode-group,#custom-mode-group:not(.hidden){flex:1;display:flex;flex-direction:column}#simple-mode-group .form-group:first-child,#custom-mode-group .form-group:nth-child(2){flex:1}#generate-card .form-textarea{flex:1;min-height:80px}.card{padding:var(--space-4);margin-bottom:var(--space-4)}.card-header,.form-group{margin-bottom:var(--space-3)}#tasks-card{max-height:calc(100vh - 5rem);overflow-y:auto}}.topbar{display:flex;flex-direction:column;gap:var(--space-4);padding:var(--space-5) 0;margin-bottom:var(--space-4);border-bottom:1px solid var(--color-border-subtle)}.topbar-brand{display:flex;align-items:center;gap:var(--space-3)}.header-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--color-accent) 0%,#7b2ff7 100%);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-glow);flex-shrink:0}.topbar h1{font-size:var(--text-xl);font-weight:700;background:linear-gradient(135deg,var(--color-text-primary) 0%,var(--color-accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.topbar-connect{display:flex;align-items:center;gap:var(--space-3)}.form-input-sm{padding:var(--space-2) var(--space-3);font-size:var(--text-sm);flex:1;min-width:0}.topbar-quota{display:flex;align-items:center;gap:var(--space-3);font-size:var(--text-xs)}.topbar-quota .quota-label{font-size:var(--text-xs);color:var(--color-text-muted);white-space:nowrap}.topbar-quota .quota-value{font-size:var(--text-xs);white-space:nowrap}.quota-progress-mini{width:80px;height:3px;background:var(--color-bg-elevated);border-radius:var(--radius-full);overflow:hidden}.quota-progress-mini .quota-progress-bar{height:100%;background:linear-gradient(90deg,var(--color-accent),#7b2ff7);border-radius:var(--radius-full);transition:width var(--transition-slow)}@media(min-width:960px){.topbar{flex-direction:row;align-items:center;padding:var(--space-3) 0;margin-bottom:var(--space-4)}.topbar-connect{margin-left:auto;flex-shrink:0;flex-grow:0}.topbar-connect .form-input-sm{width:220px;flex:0 0 220px}.topbar-divider{width:1px;height:28px;background:#ffffff26;margin:0 2rem;flex-shrink:0}.topbar-quota{flex-shrink:0}}.card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);margin-bottom:var(--space-6);transition:border-color var(--transition-base),box-shadow var(--transition-base)}.card:hover{border-color:var(--color-border-focus)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-5)}.card-title{font-size:var(--text-lg);font-weight:600;color:var(--color-text-primary);display:flex;align-items:center;gap:var(--space-2)}.card-title-icon{width:20px;height:20px;opacity:.7}.form-group{margin-bottom:var(--space-5)}.form-label{display:block;font-size:var(--text-sm);font-weight:500;color:var(--color-text-secondary);margin-bottom:var(--space-2);letter-spacing:.01em}.form-input,.form-textarea{width:100%;padding:var(--space-3) var(--space-4);background:var(--color-bg-tertiary);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-size:var(--text-base);font-family:inherit;transition:all var(--transition-fast)}.form-input:hover,.form-textarea:hover{border-color:#ffffff26}.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-subtle);background:var(--color-bg-elevated)}.form-input::placeholder,.form-textarea::placeholder{color:var(--color-text-muted)}.form-textarea{min-height:80px;resize:vertical;line-height:1.5}.form-input-group{display:flex;gap:var(--space-3)}.form-input-group .form-input{flex:1}.form-input[type=password]{font-family:var(--font-mono);letter-spacing:.05em}.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:12px 24px;font-size:var(--text-sm);font-weight:600;font-family:inherit;letter-spacing:.02em;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);white-space:nowrap;text-decoration:none;overflow:hidden;isolation:isolate}.btn:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;transition:opacity var(--transition-fast);z-index:-1}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none!important;filter:grayscale(.3)}.btn-primary{background:linear-gradient(135deg,#00d4ff,#00a8e8,#08c);color:#000;font-weight:700;text-shadow:0 1px 0 rgba(255,255,255,.2);box-shadow:0 2px 4px #0000004d,0 4px 12px #00d4ff40,inset 0 1px #ffffff40,inset 0 -1px #0000001a}.btn-primary:before{background:linear-gradient(135deg,#33e0ff,#00c4f0,#09d)}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 8px #0006,0 8px 24px #00d4ff66,0 0 40px #00d4ff33,inset 0 1px #ffffff4d,inset 0 -1px #0000001a}.btn-primary:hover:not(:disabled):before{opacity:1}.btn-primary:active:not(:disabled){transform:translateY(0);box-shadow:0 1px 2px #0000004d,0 2px 8px #00d4ff33,inset 0 2px 4px #00000026}.btn-secondary{background:linear-gradient(135deg,#ffffff14,#ffffff05);color:var(--color-text-primary);border:1px solid rgba(255,255,255,.12);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:0 2px 4px #0003,inset 0 1px #ffffff14}.btn-secondary:before{background:linear-gradient(135deg,#00d4ff26,#00d4ff0d)}.btn-secondary:hover:not(:disabled){border-color:var(--color-accent);color:var(--color-accent);box-shadow:0 4px 12px #0000004d,0 0 20px #00d4ff1a,inset 0 1px #ffffff1a}.btn-secondary:hover:not(:disabled):before{opacity:1}.btn-secondary:active:not(:disabled){transform:translateY(1px);box-shadow:0 1px 2px #0003,inset 0 1px 3px #0003}.btn-ghost{background:transparent;color:var(--color-text-secondary);border:1px solid transparent}.btn-ghost:before{background:#ffffff0d}.btn-ghost:hover:not(:disabled){color:var(--color-text-primary);border-color:#ffffff1a}.btn-ghost:hover:not(:disabled):before{opacity:1}.btn-lg{padding:16px 32px;font-size:var(--text-base);border-radius:var(--radius-lg);letter-spacing:.03em}.btn-lg.btn-primary{box-shadow:0 4px 8px #0000004d,0 8px 20px #00d4ff4d,inset 0 1px #ffffff40,inset 0 -1px #0000001a}.btn-lg.btn-primary:hover:not(:disabled){box-shadow:0 6px 12px #0006,0 12px 36px #00d4ff73,0 0 60px #00d4ff40,inset 0 1px #ffffff4d,inset 0 -1px #0000001a}.btn-icon{width:44px;height:44px;padding:0;border-radius:var(--radius-md)}.btn svg{flex-shrink:0;transition:transform var(--transition-fast)}.btn:hover:not(:disabled) svg{transform:scale(1.05)}.btn-primary svg{filter:drop-shadow(0 1px 1px rgba(0,0,0,.2))}.connection-badge{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-1) var(--space-3);background:var(--color-bg-tertiary);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:500;text-transform:uppercase;letter-spacing:.05em}.connection-dot{width:8px;height:8px;border-radius:50%;animation:pulse 2s ease-in-out infinite}.connection-dot.connected{background:var(--color-success);box-shadow:0 0 8px var(--color-success)}.connection-dot.disconnected{background:var(--color-text-muted);animation:none}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.quota-label{font-size:var(--text-sm);color:var(--color-text-secondary)}.quota-value{font-size:var(--text-sm);font-weight:600;color:var(--color-accent);font-family:var(--font-mono)}.status{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:600;text-transform:uppercase;letter-spacing:.03em}.status-pending{background:var(--color-warning-subtle);color:var(--color-warning)}.status-processing{background:var(--color-accent-subtle);color:var(--color-accent)}.status-complete,.status-streaming{background:var(--color-success-subtle);color:var(--color-success)}.status-error{background:var(--color-error-subtle);color:var(--color-error)}.now-playing-cover{width:48px;height:48px;border-radius:var(--radius-sm);flex-shrink:0;overflow:hidden;background:var(--color-bg-tertiary);display:flex;align-items:center;justify-content:center}.playlist-row-cover{width:32px;height:32px;border-radius:var(--radius-sm);flex-shrink:0;overflow:hidden;background:var(--color-bg-tertiary);display:flex;align-items:center;justify-content:center}.cover-img{width:100%;height:100%;object-fit:cover}.cover-placeholder{opacity:.3}.now-playing{display:flex;flex-direction:column;gap:var(--space-3);padding:var(--space-4);background:linear-gradient(135deg,#ffffff0a,#ffffff03);border-bottom:1px solid var(--color-border);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:var(--radius-md) var(--radius-md) 0 0}.now-playing-info{display:flex;flex-direction:column;gap:2px;min-width:0}.now-playing-title{font-weight:500;font-size:var(--text-sm);color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.now-playing-meta{font-size:var(--text-xs);color:var(--color-text-muted);font-family:var(--font-mono);display:flex;align-items:center;gap:var(--space-2)}.now-playing-controls{display:flex;align-items:center;justify-content:center;gap:var(--space-2)}.player-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:none;border:none;border-radius:var(--radius-full);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast);flex-shrink:0}.player-btn:hover:not(:disabled){color:var(--color-text-primary);background:#ffffff14}.player-btn:disabled{opacity:.3;cursor:not-allowed}.player-btn-main{width:40px;height:40px;background:var(--color-accent);color:#000;border-radius:var(--radius-full);box-shadow:0 2px 8px #00d4ff4d}.player-btn-main:hover:not(:disabled){background:var(--color-accent-hover);color:#000;transform:scale(1.05);box-shadow:0 4px 16px #00d4ff66}.player-btn-main:disabled{background:var(--color-bg-elevated);color:var(--color-text-muted);box-shadow:none}.progress-container{display:flex;align-items:center;gap:var(--space-2)}.progress-time{font-size:11px;font-family:var(--font-mono);color:var(--color-text-muted);min-width:32px;text-align:center;flex-shrink:0;-webkit-user-select:none;user-select:none}.progress-bar{flex:1;height:4px;background:var(--color-bg-elevated);border-radius:var(--radius-full);cursor:pointer;position:relative;transition:height var(--transition-fast)}.progress-bar:hover{height:6px}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--color-accent),#7b2ff7);border-radius:var(--radius-full);transition:width .1s linear;position:relative}.progress-bar:hover .progress-bar-fill:after{content:"";position:absolute;right:-5px;top:50%;transform:translateY(-50%);width:10px;height:10px;background:var(--color-accent);border-radius:50%;box-shadow:0 0 6px #00d4ff80}@media(min-width:640px){.now-playing{flex-direction:row;align-items:center;gap:var(--space-4)}.now-playing-info{flex:0 1 auto;max-width:200px}.now-playing-controls{flex-shrink:0}.progress-container{flex:1;min-width:0}}.playlist{display:flex;flex-direction:column}.playlist-row{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-left:3px solid transparent;transition:all var(--transition-fast);position:relative}.playlist-row:hover{background:var(--color-bg-tertiary)}.playlist-row-active{border-left-color:var(--color-accent);background:#00d4ff0d}.playlist-row-active:hover{background:#00d4ff14}.playlist-row-error,.playlist-row-error .playlist-row-title{color:var(--color-error)}.playlist-row-playable{cursor:pointer}.playlist-row-number{width:28px;text-align:center;font-size:var(--text-sm);font-family:var(--font-mono);color:var(--color-text-muted);flex-shrink:0;display:flex;align-items:center;justify-content:center}.playlist-row-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}.playlist-row-title{font-size:var(--text-sm);font-weight:500;color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:var(--space-2)}.playlist-row-meta{font-size:11px;color:var(--color-text-muted);font-family:var(--font-mono)}.playlist-row-kebab{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:none;border:none;border-radius:var(--radius-sm);color:var(--color-text-muted);cursor:pointer;opacity:0;transition:all var(--transition-fast);flex-shrink:0}.playlist-row:hover .playlist-row-kebab{opacity:1}.playlist-row-kebab:hover{color:var(--color-text-primary);background:#ffffff14}.badge-stego{display:inline-block;padding:1px 6px;background:var(--color-accent-subtle);color:var(--color-accent);border-radius:var(--radius-full);font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;white-space:nowrap;flex-shrink:0;vertical-align:middle}.badge-stego-sm{padding:0 5px;font-size:9px}.track-menu{position:fixed;z-index:1000;min-width:180px;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:var(--space-1);animation:menuFadeIn .15s ease}@keyframes menuFadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.track-menu-item{display:flex;align-items:center;gap:var(--space-2);width:100%;padding:var(--space-2) var(--space-3);background:none;border:none;border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--text-sm);font-family:inherit;cursor:pointer;transition:all var(--transition-fast);text-align:left}.track-menu-item:hover{background:#ffffff0f;color:var(--color-text-primary)}.track-menu-item-danger{color:var(--color-error)}.track-menu-item-danger:hover{background:var(--color-error-subtle);color:var(--color-error)}.playlist-toolbar{display:flex;gap:var(--space-2);justify-content:flex-end;padding:var(--space-3) var(--space-3);border-top:1px solid var(--color-border-subtle)}.btn-sm{padding:var(--space-1) var(--space-3);font-size:var(--text-xs)}.btn-danger{background:transparent;border:1px solid rgba(255,80,80,.3);color:#ff5050;border-radius:var(--radius-md);cursor:pointer;transition:all .15s ease}.btn-danger:hover{background:#ff50501a;border-color:#ff5050}.spinner{width:20px;height:20px;border:2px solid var(--color-border);border-top-color:var(--color-accent);border-radius:50%;animation:spin .8s linear infinite}.spinner-sm{width:14px;height:14px;border-width:2px}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{display:flex;align-items:center;gap:var(--space-3);color:var(--color-text-secondary);font-size:var(--text-sm)}.skeleton{background:linear-gradient(90deg,var(--color-bg-tertiary) 25%,var(--color-bg-elevated) 50%,var(--color-bg-tertiary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-sm)}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.toast-container{position:fixed;bottom:var(--space-6);left:50%;transform:translate(-50%);z-index:1000;width:100%;max-width:520px;padding:0 var(--space-4);pointer-events:none}.toast{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-5);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);pointer-events:auto;animation:toastSlideUp .35s cubic-bezier(.4,0,.2,1)}.toast.hidden{display:none!important}@keyframes toastSlideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.toast-icon{flex-shrink:0;width:20px;height:20px}.toast-content{flex:1;font-size:var(--text-sm);line-height:1.4}.toast-dismiss{flex-shrink:0;background:none;border:none;color:inherit;opacity:.6;cursor:pointer;font-size:var(--text-xl);line-height:1;padding:var(--space-1);transition:opacity var(--transition-fast)}.toast-dismiss:hover{opacity:1}.toast-error{background:var(--color-error-subtle);border:1px solid rgba(255,82,82,.25);color:var(--color-error);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.toast-success{background:var(--color-success-subtle);border:1px solid rgba(0,230,118,.25);color:var(--color-success);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.toast-info{background:var(--color-accent-subtle);border:1px solid rgba(0,212,255,.25);color:var(--color-accent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.card-animated{overflow:hidden;transition:opacity var(--transition-slow),transform var(--transition-slow),max-height var(--transition-slow);opacity:1;transform:translateY(0);max-height:2000px}.card-animated.hidden{display:block!important;opacity:0;transform:translateY(12px);max-height:0;padding-top:0;padding-bottom:0;margin-bottom:0;border-color:transparent;pointer-events:none;overflow:hidden}.empty-state{text-align:center;padding:var(--space-10) var(--space-6);color:var(--color-text-muted)}.empty-state-icon{font-size:48px;margin-bottom:var(--space-4);opacity:.5}.empty-state-text{font-size:var(--text-sm)}.stego-tabs{display:flex;gap:var(--space-1);margin-bottom:var(--space-5);background:var(--color-bg-tertiary);border-radius:var(--radius-md);padding:var(--space-1)}.stego-tab{flex:1;padding:var(--space-2) var(--space-4);background:transparent;border:none;border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--text-sm);font-weight:500;font-family:inherit;cursor:pointer;transition:all var(--transition-fast)}.stego-tab:hover{color:var(--color-text-primary);background:var(--color-bg-elevated)}.stego-tab.active{background:var(--color-bg-elevated);color:var(--color-accent);box-shadow:0 1px 3px #0003}.stego-mode-toggle{display:flex;gap:var(--space-4);margin-bottom:var(--space-5)}.stego-radio{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);color:var(--color-text-secondary);cursor:pointer}.stego-radio input[type=radio]{accent-color:var(--color-accent)}.stego-radio input:checked+span{color:var(--color-text-primary)}.stego-drop-zone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);padding:var(--space-8) var(--space-6);background:var(--color-bg-tertiary);border:2px dashed var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);color:var(--color-text-muted);text-align:center}.stego-drop-zone:hover,.stego-drop-zone.drag-over{border-color:var(--color-accent);background:var(--color-accent-subtle);color:var(--color-accent)}.stego-drop-zone p{font-size:var(--text-sm);margin:0}.stego-file-name{margin-top:var(--space-2);padding:var(--space-2) var(--space-3);background:var(--color-accent-subtle);border-radius:var(--radius-sm);font-size:var(--text-sm);font-family:var(--font-mono);color:var(--color-accent)}.stego-progress{display:flex;align-items:center;gap:var(--space-3);margin-top:var(--space-4);padding:var(--space-3) var(--space-4);background:var(--color-accent-subtle);border-radius:var(--radius-md);font-size:var(--text-sm);color:var(--color-accent)}.stego-result{margin-top:var(--space-5);padding:var(--space-5);background:var(--color-bg-tertiary);border:1px solid var(--color-border-subtle);border-radius:var(--radius-md)}.stego-result-header{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-3)}.stego-technique-badge{padding:var(--space-1) var(--space-3);background:var(--color-accent-subtle);color:var(--color-accent);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:600;text-transform:uppercase;letter-spacing:.03em}.stego-result-size{font-size:var(--text-xs);color:var(--color-text-muted);font-family:var(--font-mono)}.stego-result-text{padding:var(--space-4);background:var(--color-bg-secondary);border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-text-primary);white-space:pre-wrap;word-break:break-all;max-height:300px;overflow-y:auto;margin:0}.generate-options{display:flex;align-items:center;gap:var(--space-5);margin-bottom:var(--space-5)}.form-select{padding:var(--space-2) var(--space-3);background:var(--color-bg-tertiary);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-size:var(--text-sm);font-family:inherit;cursor:pointer;transition:all var(--transition-fast);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23606070' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:28px}.form-select:hover{border-color:#ffffff26}.form-select:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-subtle);background-color:var(--color-bg-elevated)}.form-check{display:flex;align-items:center;gap:var(--space-2)}.form-check input[type=checkbox]{accent-color:var(--color-accent);width:16px;height:16px;cursor:pointer}.form-check-label{font-size:var(--text-sm);color:var(--color-text-secondary);cursor:pointer;-webkit-user-select:none;user-select:none;white-space:nowrap}.advanced-options{margin-top:var(--space-3)}.advanced-options[open] .advanced-toggle:after{transform:rotate(90deg)}.advanced-toggle{cursor:pointer;-webkit-user-select:none;user-select:none;list-style:none;display:flex;align-items:center;gap:var(--space-2)}.advanced-toggle::-webkit-details-marker{display:none}.advanced-toggle:after{content:"";display:inline-block;width:0;height:0;border-top:4px solid transparent;border-bottom:4px solid transparent;border-left:6px solid var(--color-text-muted);transition:transform var(--transition-fast)}.advanced-options-body{padding-top:var(--space-4);display:flex;flex-direction:column;gap:var(--space-1)}.radio-group{display:flex;gap:var(--space-4)}.radio-option{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);color:var(--color-text-secondary);cursor:pointer}.radio-option input[type=radio]{accent-color:var(--color-accent);width:14px;height:14px;cursor:pointer}.radio-option input:checked+span{color:var(--color-text-primary)}.range-group{display:flex;align-items:center;gap:var(--space-3)}.form-range{flex:1;-webkit-appearance:none;-moz-appearance:none;appearance:none;height:4px;background:var(--color-bg-elevated);border-radius:var(--radius-full);outline:none;cursor:pointer}.form-range::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;background:var(--color-accent);border-radius:50%;border:none;box-shadow:0 0 6px #00d4ff66;cursor:pointer;transition:transform var(--transition-fast)}.form-range::-webkit-slider-thumb:hover{transform:scale(1.2)}.form-range::-moz-range-thumb{width:14px;height:14px;background:var(--color-accent);border-radius:50%;border:none;box-shadow:0 0 6px #00d4ff66;cursor:pointer}.range-value{min-width:32px;text-align:right;font-size:var(--text-sm);font-family:var(--font-mono);color:var(--color-accent)}.wizard-btn{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;padding:0;margin-left:var(--space-2);background:transparent;border:1px solid rgba(0,212,255,.3);border-radius:var(--radius-sm);color:var(--color-accent);cursor:pointer;transition:all var(--transition-fast);vertical-align:middle;position:relative}.wizard-btn:hover:not(:disabled){background:var(--color-accent-subtle);border-color:var(--color-accent);box-shadow:0 0 8px #00d4ff4d}.wizard-btn:active:not(:disabled){transform:scale(.92)}.wizard-btn:disabled{opacity:.3;cursor:not-allowed}.wizard-btn .wizard-icon{transition:transform var(--transition-fast)}.wizard-btn:hover:not(:disabled) .wizard-icon{transform:scale(1.15)}.wizard-btn.loading .wizard-icon{display:none}.wizard-btn.loading .wizard-spinner{display:block!important}.wizard-btn .wizard-spinner{width:12px;height:12px;border-width:1.5px}.generate-tabs{margin-bottom:var(--space-4)}.footer{padding:var(--space-6) 0 var(--space-4);text-align:center;font-size:var(--text-xs);color:var(--color-text-muted)}.footer a{color:var(--color-text-muted);text-decoration:none;transition:color var(--transition-fast)}.footer a:hover{color:var(--color-accent)}.footer-sep{margin:0 var(--space-2);opacity:.4}@media(min-width:960px){.footer{grid-area:footer;align-self:end}}.hidden{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.text-mono{font-family:var(--font-mono)}.text-muted{color:var(--color-text-muted)}.text-accent{color:var(--color-accent)}@media(min-width:960px){.stego-drop-zone{padding:var(--space-4) var(--space-4)}.stego-tabs,.stego-mode-toggle{margin-bottom:var(--space-3)}#generate-card .btn-lg{padding:12px 24px;font-size:var(--text-sm)}.generate-options{margin-bottom:var(--space-3)}}@media(max-width:640px){.app{padding:var(--space-4)}.header h1{font-size:var(--text-2xl)}.card{padding:var(--space-4)}.form-input-group{flex-direction:column}.toast-container{bottom:var(--space-4);max-width:100%}.playlist-row-kebab{opacity:1}.now-playing{padding:var(--space-3)}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-bg-secondary)}::-webkit-scrollbar-thumb{background:var(--color-bg-hover);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}button:focus:not(:focus-visible),input:focus:not(:focus-visible){outline:none}::selection{background:var(--color-accent);color:#000}