:root{--bg: #f6f7f9;--panel: rgba(255, 255, 255, .82);--ink: #111111;--muted: #5d6674;--line: rgba(15, 23, 42, .1);--dark: #101010;--dark-soft: #1d1d1d;--active: #000000;--active-ink: #ffffff;font-family:DM Sans,IBM Plex Sans,Segoe UI,Tahoma,Geneva,Verdana,sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;background:var(--bg);color:var(--ink);overflow-x:hidden}body{min-width:320px}a{color:inherit}.file-loading-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a59;-webkit-backdrop-filter:blur(1px);backdrop-filter:blur(1px);display:flex;align-items:center;justify-content:center;z-index:4000;pointer-events:all}.file-loading-box{background:#fff;border:1px solid rgba(15,23,42,.14);border-radius:10px;box-shadow:0 14px 34px #0f172a3d;padding:12px 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-1}.project-title-row strong{font-size:18px}.project-name-input{min-width:0;width:100%}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:120;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;background:#f5f7fafa;border-top:1px solid #d5ddea;box-shadow:0 -6px 18px #0f172a24;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.mobile-bottom-link{border:0;border-right:1px solid #e6eaf2;border-radius:0;background:transparent;color:#41526a;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:62px;padding:6px 4px 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