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var(--border-color)}.appearance-info{display:flex;align-items:center;gap:12px}.appearance-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background-color:var(--bg-hover);color:var(--text-secondary)}.appearance-text{display:flex;flex-direction:column;gap:2px}.appearance-label{font-size:14px;font-weight:500;color:var(--text-primary)}.appearance-description{font-size:12px;color:var(--text-secondary)}.toggle-switch{width:50px;height:28px;border-radius:14px;background-color:var(--theme-tertiary);border:none;cursor:pointer;position:relative;transition:background-color .2s ease}.toggle-switch.active{background-color:var(--theme-primary)}.toggle-knob{position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background-color:#fff;box-shadow:0 2px 4px #0003;transition:transform .2s ease}.toggle-switch.active .toggle-knob{transform:translate(22px)}.preset-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.preset-btn{padding:12px;border:2px solid var(--border-color);border-radius:12px;background-color:var(--bg-secondary);cursor:pointer;transition:all var(--transition-fast);display:flex;flex-direction:column;align-items:center;gap:8px}.preset-btn:hover{transform:scale(1.02)}.preset-btn.active{border-width:2px}.preset-colors{display:flex;gap:4px}.preset-swatch{width:24px;height:24px;border-radius:6px;border:1px solid rgba(0,0,0,.1)}.preset-name{font-size:12px;font-weight:500;color:var(--text-primary)}.color-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--bg-secondary)}.color-info{display:flex;flex-direction:column;gap:2px}.color-label{font-size:14px;font-weight:500;color:var(--text-primary)}.color-description{font-size:12px;color:var(--text-tertiary)}.color-picker-wrapper{display:flex;align-items:center;gap:8px;position:relative}.color-input{position:absolute;width:36px;height:36px;opacity:0;cursor:pointer}.color-preview{width:36px;height:36px;border-radius:var(--radius-sm);border:2px solid var(--border-color);cursor:pointer}.hex-input{width:80px;padding:8px 10px;border:1px solid var(--border-color);border-radius:8px;font-size:13px;font-family:monospace;color:var(--text-primary);background-color:var(--bg-primary);text-transform:uppercase}.hex-input:focus{outline:none;border-color:var(--accent-primary)}.preview-container{padding:16px;border-radius:12px;display:flex;flex-direction:column;gap:12px}.preview-message{display:flex;gap:12px;padding:12px;border-radius:12px}.preview-avatar{width:32px;height:32px;border-radius:50%;flex-shrink:0}.preview-text{font-size:14px;color:var(--text-primary)}.preview-button{padding:10px 20px;border:none;border-radius:8px;color:#fff;font-size:14px;font-weight:500;cursor:pointer;align-self:flex-start}@media(max-width:480px){.preset-grid{grid-template-columns:repeat(2,1fr)}.color-row{flex-direction:column;align-items:flex-start;gap:12px}}.shortcuts-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--bg-tertiary);flex-shrink:0}.shortcuts-header{border-bottom-color:#404040}.shortcuts-title{font-size:18px;font-weight:600;color:var(--text-primary);margin:0}.shortcuts-close-btn{padding:8px;border:none;border-radius:8px;background-color:transparent;color:var(--text-secondary);cursor:pointer;transition:all .15s ease;display:flex;align-items:center;justify-content:center}.shortcuts-close-btn:hover{background-color:var(--bg-secondary);color:var(--text-primary)}.shortcuts-body{padding:16px 24px;overflow-y:auto;flex:1}.shortcuts-group{margin-bottom:24px}.shortcuts-group:last-child{margin-bottom:0}.shortcuts-group-title{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary);margin:0 0 12px}.shortcuts-group-title.dark{color:#888}.shortcuts-list{display:flex;flex-direction:column;gap:8px}.shortcut-item{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:8px;background-color:var(--bg-secondary);transition:background-color .15s ease}.shortcut-item:hover{background-color:var(--theme-primary)}.shortcut-action{font-size:14px;color:var(--text-primary)}.shortcut-keys{display:flex;align-items:center;gap:4px}.shortcut-key{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:28px;padding:0 8px;background:linear-gradient(180deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);border:1px solid var(--theme-primary);border-radius:6px;font-family:inherit;font-size:12px;font-weight:500;color:var(--text-primary);box-shadow:0 1px 2px #0000000d,0 1px rgba(var(--theme-primary),.8) inset}.shortcut-key.small{min-width:24px;height:22px;padding:0 6px;font-size:11px}.shortcut-plus{font-size:12px;color:var(--text-primary);margin:0 2px}.shortcuts-footer{padding:16px 24px;border-top:1px solid var(--bg-tertiary);text-align:center;flex-shrink:0}.shortcuts-footer p{margin:0;font-size:13px;color:var(--text-tertiary);display:flex;align-items:center;justify-content:center;gap:6px}@media(max-width:480px){.shortcuts-modal{max-width:100%;margin:0 16px;max-height:90vh}.shortcuts-header,.shortcuts-body,.shortcuts-footer{padding-left:20px;padding-right:20px}.shortcut-item{flex-direction:column;align-items:flex-start;gap:8px}.shortcut-keys{align-self:flex-end}}.settings-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--bg-tertiary);flex-shrink:0}.settings-title{font-size:18px;font-weight:600;color:var(--text-primary);margin:0}.settings-close-btn{padding:8px;border:none;border-radius:8px;background-color:transparent;color:var(--text-secondary);cursor:pointer;transition:all .15s ease;display:flex;align-items:center;justify-content:center}.settings-close-btn:hover{background-color:var(--bg-secondary);color:var(--text-primary)}.settings-content{display:flex;flex:1;overflow:hidden}.settings-tabs{width:180px;padding:16px;border-right:1px solid var(--bg-tertiary);display:flex;flex-direction:column;gap:4px;flex-shrink:0}.settings-tab{display:flex;align-items:center;gap:10px;padding:10px 12px;border:none;border-radius:8px;background-color:transparent;color:var(--text-secondary);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease;text-align:left}.settings-tab:hover{background-color:var(--bg-secondary);color:var(--text-primary)}.settings-tab.active{color:var(--text-primary);font-weight:600}.settings-panel{flex:1;padding:24px;overflow-y:auto}.settings-footer{display:flex;justify-content:flex-end;gap:12px;padding:16px 24px;border-top:1px solid var(--bg-tertiary);flex-shrink:0}.settings-btn{color:var(--text-primary);background-color:var(--bg-secondary);padding:10px 20px;border-radius:10px;font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.settings-btn:hover{background-color:var(--bg-tertiary)}.settings-btn-cancel{background-color:var(--bg-secondary)}.settings-btn-cancel:hover{background-color:var(--text-delete)}.settings-btn-save{background-color:var(--theme-primary)}.settings-btn-save:disabled{cursor:not-allowed;background-color:color-mix(in srgb,var(--theme-primary) 60%,black);color:var(--text-secondary)}@media(max-width:600px){.settings-modal{max-width:100%;max-height:95vh}.settings-content{flex-direction:column}.settings-tabs{width:100%;flex-direction:row;border-right:none;border-bottom:1px solid #e5e4e0;padding:12px;overflow-x:auto}.settings-tabs.dark{border-right:none;border-bottom-color:#404040}.settings-tab{flex-shrink:0}.settings-panel{padding:20px}}.app{display:flex;height:100%;width:100%;overflow:hidden;background-color:var(--bg-primary);transition:background-color var(--transition-normal)}.app.dark{background-color:var(--bg-primary-dark)}.snackbar{position:fixed;display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:.5rem;box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;min-width:18rem;max-width:28rem;transition:opacity .3s ease,transform .3s ease;z-index:9999}.snackbar-hidden{opacity:0}.snackbar-visible{opacity:1}.snackbar-success{background-color:#059669;color:#fff}.snackbar-error{background-color:#dc2626;color:#fff}.snackbar-warning{background-color:#f59e0b;color:#111827}.snackbar-info{background-color:#0284c7;color:#fff}.snackbar-left{left:1rem}.snackbar-right{right:1rem}.snackbar-center{left:50%}.snackbar-icon{font-size:1.125rem;font-weight:700}.snackbar-message{flex:1;font-size:.875rem;font-weight:500;margin:0}.snackbar-close-wrapper{position:relative;width:28px;height:28px}.snackbar-close{position:absolute;top:0;left:0;width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:none;border:none;opacity:.7;cursor:pointer;color:inherit;padding:0;transition:opacity .15s ease;z-index:1}.snackbar-close:hover{opacity:1}.snackbar-progress-ring{position:absolute;top:0;left:0;width:28px;height:28px;transform:rotate(-90deg)}.snackbar-progress-ring-bg{fill:none;stroke:currentColor;stroke-width:2;opacity:.2}.snackbar-progress-ring-fill{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-dasharray:75.4;stroke-dashoffset:75.4}.snackbar-progress-ring-fill.animating{animation:snackbar-countdown var(--snackbar-timer, 4s) linear forwards}@keyframes snackbar-countdown{0%{stroke-dashoffset:75.4}to{stroke-dashoffset:0}}