:root{--primary: #c83232;--on-primary: #ffffff;--secondary: #828282;--on-secondary: #000000;--error: #c83232;--on-error: #ffffff;--surface: #ffffff;--on-surface: #000000;--on-surface-variant: #49454e;--surface-container: #ffffff;--surface-container-highest: #f4f4f5;--surface-container-low: #ffffff;--surface-container-lowest: #f9fafb;--outline: #d8d8d8;--outline-variant: #dfdfdf;--scrim: rgba(0, 0, 0, .6);--bg: #e9e9e9;--ctrl-true: #ffffff;--ctrl-false: #212121;--bg-button-disabled: #d3d3d3;--outline-gradient: linear-gradient(264deg, #f99c06 2.77%, #dc0000 70.21%);--radius-lg: 16px;--radius-md: 12px;--radius-sm: 10px;--shadow-1: 0 10px 30px rgba(0, 0, 0, .08);--shadow-2: 0 14px 40px rgba(0, 0, 0, .12);--font: "SF Pro Display", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;--valid: #2d6a4f;--invalid: #c83232;--accent: #c83232;--accent-soft: rgba(200, 50, 50, .15)}[data-theme=dark]{--primary: #c83232;--on-primary: #ffffff;--secondary: #666666;--on-secondary: #ffffff;--error: #c83232;--on-error: #ffffff;--surface: #171717;--on-surface: #ffffff;--on-surface-variant: #cac4d0;--surface-container: #171717;--surface-container-highest: #212121;--surface-container-low: #212121;--surface-container-lowest: #1a1a1a;--outline: #454545;--outline-variant: #313131;--scrim: rgba(0, 0, 0, .7);--bg: #2e2e2e;--ctrl-true: #000000;--ctrl-false: #212121;--bg-button-disabled: #444444;--outline-gradient: linear-gradient(264deg, #f99c06 2.77%, #dc0000 70.21%)}:root{font-family:var(--font);line-height:1.5;font-weight:400;color:var(--on-surface);background-color:var(--bg)}*{box-sizing:border-box}body{margin:0;min-height:100vh}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;color:var(--on-surface);background-color:var(--surface-container-highest);border:1px solid var(--outline);border-radius:var(--radius-sm)}select option{color:var(--on-surface);background-color:var(--surface)}.btn{padding:8px 14px;border-radius:var(--radius-sm);border:1px solid var(--outline);background:var(--surface-container-highest);color:var(--on-surface);transition:background .15s,border-color .15s}.btn:hover:not(:disabled){border-color:var(--primary)}.btn--active{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}.btn--danger{color:var(--error)}.btn:disabled{opacity:.5;cursor:not-allowed}.panel{padding:16px;background:var(--surface-container);border-radius:var(--radius-md);border:1px solid var(--outline-variant);box-shadow:var(--shadow-1)}.muted{color:var(--on-surface-variant);font-size:13px}.desktop-grid__meta{margin-bottom:8px;font-size:12px;color:var(--on-surface-variant)}.desktop-grid__viewport{overflow:auto;max-height:min(72vh,820px);border-radius:var(--radius-md);border:1px solid var(--outline);background:var(--surface-container-low);box-shadow:var(--shadow-1)}.desktop-grid__canvas{position:relative;background:var(--surface-container-lowest);touch-action:none;flex-shrink:0}.desktop-grid__cell{position:absolute;box-sizing:border-box;border:1px solid rgba(128,128,128,.12);pointer-events:none;background:#ffffff05}.desktop-grid__canvas--dragover{border-color:var(--primary);box-shadow:0 0 0 3px var(--accent-soft)}.desktop-grid__drop-hint{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;pointer-events:none;background:var(--accent-soft);color:var(--primary);font-weight:600;border-radius:var(--radius-md);z-index:5}.desktop-grid__icon{position:absolute;box-sizing:border-box;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:2px 1px 0;cursor:grab;-webkit-user-select:none;user-select:none;z-index:2;overflow:visible}.desktop-grid__icon:active{cursor:grabbing}.desktop-grid__icon--dragging{z-index:10;opacity:.92;filter:drop-shadow(var(--shadow-2))}.desktop-grid__icon--selected .desktop-grid__icon-img-wrap{outline:2px solid var(--primary);outline-offset:1px}.desktop-grid__icon--invalid .desktop-grid__icon-img-wrap{outline:2px solid var(--invalid);outline-offset:1px}.desktop-grid__icon--system{z-index:3}.desktop-grid__icon--system .desktop-grid__icon-fallback{background:var(--surface-container-highest)}.desktop-grid__check{position:absolute;top:2px;right:2px;left:auto;z-index:4;width:14px;height:14px;margin:0;cursor:pointer;accent-color:var(--primary)}.desktop-grid__icon-img-wrap{width:40px;height:40px;flex-shrink:0;display:flex;align-items:center;justify-content:center;margin-top:2px;border-radius:var(--radius-sm)}.desktop-grid__icon-img{width:32px;height:32px;object-fit:contain;image-rendering:auto;pointer-events:none}.desktop-grid__icon-fallback{width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-size:22px;border-radius:var(--radius-sm);background:var(--surface-container-high)}.desktop-grid__icon-fallback--upload{background:var(--primary);color:var(--on-primary);font-size:20px;font-weight:700}.desktop-grid__icon-name{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;width:100%;margin-top:2px;padding:0 1px;font-size:10px;line-height:1.2;text-align:center;color:var(--on-surface);word-break:break-word}.desktop-grid__chips{display:flex;flex-wrap:wrap;gap:8px}.desktop-grid__unplaced{margin-top:16px}.desktop-grid__chip{padding:8px 12px;background:var(--surface-container-highest);border-radius:var(--radius-sm);border:1px solid var(--outline);font-size:13px}.desktop-grid__chip--valid{border-color:var(--valid)}.desktop-grid__chip--invalid{border-color:var(--invalid)}.pending-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;margin-bottom:16px;background:var(--accent-soft);border:1px solid var(--primary);border-radius:var(--radius-md);color:var(--on-surface)}.btn--apply{background:var(--primary);color:var(--on-primary);border-color:var(--primary);font-weight:600}.desktop-grid__icon--pending .desktop-grid__icon-img-wrap{outline:2px dashed var(--primary);outline-offset:2px}.wallpaper-upload{display:flex;align-items:center;justify-content:center;min-height:88px;padding:20px;border:2px dashed var(--outline);border-radius:var(--radius-md);background:var(--surface-container-lowest);cursor:pointer;transition:border-color .15s,background .15s}.wallpaper-upload:hover,.wallpaper-upload--drag{border-color:var(--primary);background:var(--surface-container-highest)}.wallpaper-upload input{display:none}.wallpaper-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.wallpaper-card{display:flex;flex-direction:column;border-radius:var(--radius-md);border:1px solid var(--outline-variant);background:var(--surface-container);overflow:hidden;box-shadow:var(--shadow-1)}.wallpaper-card__img{width:100%;aspect-ratio:16 / 9;object-fit:cover;background:var(--surface-container-lowest)}.wallpaper-card__body{padding:10px 12px;display:flex;flex-direction:column;gap:8px}.wallpaper-card__title{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.wallpaper-card__meta{font-size:11px;color:var(--on-surface-variant)}.wallpaper-card__actions{display:flex;gap:6px}.wallpaper-card__actions .btn{flex:1;padding:6px 8px;font-size:12px}.wallpaper-strip{display:flex;gap:10px;align-items:stretch;flex-wrap:wrap}.wallpaper-strip__preview{width:140px;flex-shrink:0;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--outline-variant);background:var(--surface-container-lowest);aspect-ratio:16 / 9}.wallpaper-strip__preview img{width:100%;height:100%;object-fit:cover;display:block}.wallpaper-strip__preview--empty{display:flex;align-items:center;justify-content:center;color:var(--on-surface-variant);font-size:12px}.wallpaper-strip__tools{display:flex;flex-direction:column;gap:6px;justify-content:center}.wallpaper-strip__tools .btn{padding:6px 10px;font-size:12px}.wallpaper-pick{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;flex:1;min-width:0}.wallpaper-pick__item{flex-shrink:0;width:72px;border-radius:var(--radius-sm);overflow:hidden;border:2px solid transparent;cursor:pointer;transition:border-color .15s,transform .1s;background:none;padding:0}.wallpaper-pick__item:hover{border-color:var(--outline)}.wallpaper-pick__item--active{border-color:var(--primary)}.wallpaper-pick__item img{width:100%;aspect-ratio:16 / 9;object-fit:cover;display:block}