*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0d0d12;--surface:#1a1a22;--text:#f0f0f4;--muted:#8a8a99;--accent:#7c5cff;--border:#2a2a35;--error:#ff6b6b;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,sans-serif}body{min-height:100vh}button{font:inherit;cursor:pointer;background:var(--accent);color:#fff;border:none;border-radius:12px;padding:14px 20px;font-weight:600}button.secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}textarea{font:inherit}.app{flex-direction:column;max-width:500px;min-height:100vh;margin:0 auto;display:flex}header{padding:16px;padding-top:calc(16px + env(safe-area-inset-top,0px));text-align:center;border-bottom:1px solid var(--border)}header 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var(--border);margin-top:16px;padding-top:16px}.setting{background:var(--surface);border:1px solid var(--border);border-radius:12px;justify-content:space-between;align-items:center;gap:12px;padding:14px;display:flex}.setting select{font:inherit;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:8px 10px}.setting-note{text-align:left;padding:0;font-size:13px;line-height:1.4}.saved-note{text-align:center;color:var(--accent);font-size:13px;font-weight:600}.locked{text-align:center;align-items:center;gap:12px;padding-top:60px}.lock-emoji{opacity:.5;font-size:64px}.locked .muted{padding:0 0 16px}.error{color:var(--error)}.overlay{background:var(--bg);padding:20px;padding-top:calc(20px + env(safe-area-inset-top,0px));z-index:10;flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex;position:fixed;inset:0;overflow-y:auto}.collage-grid{grid-template-columns:repeat(2,1fr);gap:8px;width:100%;max-width:400px;max-height:60vh;display:grid;overflow-y:auto}.collage-grid[data-count="1"]{grid-template-columns:1fr}.collage-grid[data-count="5"],.collage-grid[data-count="6"],.collage-grid[data-count="7"],.collage-grid[data-count="8"],.collage-grid[data-count="9"]{grid-template-columns:repeat(3,1fr)}.collage-cell{background:var(--surface);aspect-ratio:3/4;border:none;border-radius:12px;padding:0;overflow:hidden}.collage-cell img{object-fit:cover;width:100%;height:100%;display:block}.lightbox{padding-top:calc(72px + env(safe-area-inset-top,0px));z-index:20;background:#000;justify-content:center;align-items:flex-start;display:flex;position:fixed;inset:0}.lightbox-img{border-radius:8px;max-width:100%;max-height:calc(100vh - 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img{object-fit:cover;width:100%;height:100%}.day-info{flex-direction:column;flex:1;gap:2px;display:flex}.day-date{font-weight:600}.day-count{color:var(--muted);font-size:13px}.day-chevron{color:var(--muted);font-size:22px}.day-screen{z-index:15;background:var(--bg);max-width:500px;padding-top:calc(16px + env(safe-area-inset-top,0px));margin:0 auto;position:fixed;inset:0;overflow-y:auto}.day-collage{border-radius:16px;width:100%}.back-link{color:var(--accent);background:0 0;align-self:flex-start;padding:4px 0;font-weight:600}.tabs{border-top:1px solid var(--border);background:var(--bg);padding-bottom:env(safe-area-inset-bottom,0);display:flex;position:sticky;bottom:0}.tabs button{color:var(--muted);background:0 0;border-radius:0;flex:1;padding:16px 2px;font-size:12px;font-weight:500}.tabs button.active{color:var(--accent)}