:root{color-scheme:dark;--bg: #0f0f14;--panel: #1a1a22;--panel-border: #2a2a35;--text: #f0f0f5;--text-dim: #9a9aa8;--accent: #4fd1c5}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overscroll-behavior:none}.app-shell{display:flex;flex-direction:column;min-height:100vh;max-width:560px;margin:0 auto;padding:env(safe-area-inset-top,0) calc(12px + env(safe-area-inset-right,0)) env(safe-area-inset-bottom,0) calc(12px + env(safe-area-inset-left,0))}.app-header{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 0 8px}.app-title{margin:0;font-size:1.6rem;letter-spacing:.02em}.tab-bar{display:flex;gap:4px;background:var(--panel);border:1px solid var(--panel-border);border-radius:999px;padding:4px}.tab{border:none;background:transparent;color:var(--text-dim);padding:6px 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