:root{--bg:#f4f1ec;--panel:#fff;--text:#1d1b19;--muted:#6c665f;--border:#ddd6cc;--accent:#c2410c;--grout:#fff;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{background:var(--bg);margin:0}body.no-scroll{overflow:hidden}.app{flex-direction:column;min-height:100vh;display:flex}.app-header{border-bottom:1px solid var(--border);padding:16px 24px}.app-header h1{margin:0;font-size:20px}.app-main{flex:1;grid-template-columns:300px 1fr;gap:24px;padding:24px;display:grid}@media (width<=800px){.app-main{grid-template-columns:minmax(0,1fr);padding:16px}}.controls{background:var(--panel);border:1px solid var(--border);border-radius:12px;flex-direction:column;align-self:start;gap:20px;padding:20px;display:flex}.field,.uploader{flex-direction:column;gap:8px;display:flex}.field-label{color:var(--muted);font-size:13px;font-weight:600}.text-input{border:1px solid var(--border);text-transform:uppercase;border-radius:8px;width:100%;min-width:0;padding:8px 12px;font-size:22px;font-weight:700}.button-row{flex-wrap:wrap;gap:8px;display:flex}.button{font:inherit;border:1px solid var(--border);color:var(--text);cursor:pointer;background:#faf8f5;border-radius:8px;align-items:center;padding:8px 14px;font-size:14px;display:inline-flex}.button:hover:not(:disabled):not(.disabled){border-color:var(--muted)}.button.primary{background:var(--accent);border-color:var(--accent);color:#fff}.button:disabled,.button.disabled{opacity:.45;cursor:not-allowed}.hint{color:var(--muted);margin:0;font-size:12px}.preview{flex-direction:column;gap:12px;min-width:0;display:flex}.stats{color:var(--muted);flex-wrap:wrap;gap:6px 16px;min-height:18px;font-size:13px;display:flex}.preview-canvas{flex:1;justify-content:center;align-items:flex-start;min-height:260px;display:flex}.preview-canvas>.preview-empty{align-self:center}.collage-frame{flex-direction:column;gap:8px;width:100%;display:flex}.collage-frame.is-fullscreen{z-index:10;background:var(--bg);padding:12px;position:fixed;inset:0}.zoom{flex-direction:column;flex:1;gap:8px;min-height:0;display:flex;position:relative}.zoom-viewport{touch-action:pan-y;-webkit-user-select:none;user-select:none;cursor:zoom-in;background:#ebe6de;border-radius:12px;height:clamp(260px,55vh,680px);min-height:96px;max-height:min(680px,75svh);position:relative;overflow:hidden}.zoom-viewport.is-zoomed{touch-action:none;cursor:grab}.is-fullscreen .zoom-viewport{flex:1;height:auto;max-height:none}.zoom-content{transform-origin:0 0;width:100%;height:100%;padding:8px}.zoom-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.zoom-controls{gap:6px;display:flex}.zoom-button{min-width:38px;height:38px;font:inherit;border:1px solid var(--border);color:var(--text);cursor:pointer;background:#ffffffeb;border-radius:8px;font-size:18px;font-weight:600}.zoom-button.zoom-fit{padding:0 10px;font-size:14px}.zoom-button:disabled{opacity:.45;cursor:default}.collage-svg{width:100%;height:100%;display:block}.collage-svg image{cursor:pointer}.lightbox{z-index:20;background:#000000e0;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:16px;display:flex;position:fixed;inset:0}.lightbox-image{object-fit:contain;border-radius:6px;max-width:100%;max-height:calc(100% - 64px)}.lightbox-bar{align-items:center;gap:12px;max-width:100%;display:flex}.lightbox-bar .button{white-space:nowrap;flex-shrink:0}.lightbox-error{color:#ffb4a8;text-align:center;margin:0;font-size:14px}.lightbox-name{color:#fff;text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:14px;overflow:hidden}.letter-base{fill:var(--grout)}.preview-empty{color:var(--muted)}