:root{--dim-overlay: rgba(0, 0, 0, .45);--selection-border: rgba(255, 255, 255, .8);--selection-border-width: 2px;--hint-bg: rgba(0, 0, 0, .6);--hint-text: rgba(255, 255, 255, .9);--hint-font-size: 13px;--panel-bg: rgba(15, 15, 15, .92);--panel-border: rgba(255, 255, 255, .12);--panel-border-radius: 8px;--panel-padding: 16px;--btn-primary-bg: rgba(255, 255, 255, .9);--btn-primary-text: #111111;--btn-ghost-border: rgba(255, 255, 255, .4);--btn-ghost-text: rgba(255, 255, 255, .9);--btn-height: 44px;--btn-padding-x: 16px;--btn-border-radius: 6px;--font-family: system-ui, -apple-system, sans-serif;--font-hint: 400 13px/1.4 var(--font-family);--font-label: 600 14px/1 var(--font-family);--font-heading: 600 16px/1.2 var(--font-family);--font-body: 400 14px/1.5 var(--font-family)}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;background:transparent;font-family:var(--font-family);-webkit-font-smoothing:antialiased}body.selecting{cursor:crosshair}#overlay-canvas{position:fixed;top:0;left:0;width:100%;height:100%}#hint-bar{position:fixed;bottom:0;left:0;right:0;background:var(--hint-bg);color:var(--hint-text);font:var(--font-hint);text-align:center;padding:4px 8px;z-index:10}.modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--panel-border-radius);padding:var(--panel-padding);display:none;flex-direction:column}#preview-panel{z-index:100}#prompt-input{width:480px;min-height:60px;max-height:160px;margin-top:16px;padding:8px 10px;resize:vertical;background:#ffffff0f;border:1px solid var(--panel-border);border-radius:4px;color:var(--hint-text);font:var(--font-body)}#prompt-input::placeholder{color:#fff6}#preview-panel h2{font:var(--font-heading);color:var(--hint-text);margin-bottom:16px}#preview-image{max-width:480px;max-height:320px;object-fit:contain;border-radius:4px}#preview-buttons{display:flex;gap:8px;justify-content:flex-end;margin-top:24px}.btn{min-height:var(--btn-height);padding:0 var(--btn-padding-x);border-radius:var(--btn-border-radius);font:var(--font-label);cursor:pointer;border:none;outline:none}.btn-primary{background:var(--btn-primary-bg);color:var(--btn-primary-text)}.btn-ghost{background:transparent;border:1px solid var(--btn-ghost-border);color:var(--btn-ghost-text)}.btn-icon-close{position:absolute;top:8px;right:8px;width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:50%;color:var(--hint-text);font-size:18px;line-height:1;cursor:pointer}.btn-icon-close:hover{background:#ffffff1a}#ready-dialog{z-index:9999;align-items:flex-start}#ready-dialog h2{font:var(--font-heading);color:var(--hint-text);margin-bottom:8px;padding-right:24px}#ready-dialog p{font:var(--font-body);color:var(--hint-text);margin-bottom:16px}#permission-dialog{z-index:9999;max-width:400px}#permission-dialog h2{font:var(--font-heading);color:var(--hint-text)}#permission-dialog p{font:var(--font-body);color:var(--hint-text);margin:16px 0}#permission-dialog .sequoia-note{font:var(--font-body);color:#ffffff80;margin-top:8px;font-size:12px}