:root{color-scheme:light;--bg: #ffffff;--surface: #ffffff;--text: #0a0a0a;--text-soft: #3f3f46;--muted: #737373;--accent: #2f6bff;--accent-tint: rgba(47, 107, 255, .1);--on-accent: #ffffff;--border: rgba(0, 0, 0, .08);--border-strong: rgba(0, 0, 0, .14);--shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 8px 24px rgba(0, 0, 0, .04);--warning-bg: rgba(245, 158, 11, .08);--warning-border: rgba(245, 158, 11, .32);--warning-icon: #d97706;--warning-text: #78350f;--warning-text-soft: #b45309;--danger: #b91c1c;--danger-bg: rgba(220, 38, 38, .08);--danger-border: rgba(220, 38, 38, .3)}:root.dark{color-scheme:dark;--bg: #000000;--surface: #000000;--text: #ffffff;--text-soft: #d4d4d8;--muted: #a1a1aa;--accent: #2f6bff;--accent-tint: rgba(47, 107, 255, .16);--on-accent: #ffffff;--border: rgba(255, 255, 255, .1);--border-strong: rgba(255, 255, 255, .18);--shadow: none;--warning-bg: rgba(245, 158, 11, .1);--warning-border: rgba(245, 158, 11, .35);--warning-icon: #fbbf24;--warning-text: #fde68a;--warning-text-soft: #fcd34d;--danger: #fca5a5;--danger-bg: rgba(248, 113, 113, .12);--danger-border: rgba(248, 113, 113, .3)}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,system-ui,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{display:flex;align-items:flex-start;justify-content:center;padding:32px 20px}.card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:28px;display:flex;flex-direction:column;gap:20px;box-shadow:var(--shadow)}.card-icon{width:44px;height:44px;border-radius:12px;background:var(--accent-tint);color:var(--accent);display:flex;align-items:center;justify-content:center}.card-icon svg{width:22px;height:22px;display:block}.card-header h1{font-size:20px;font-weight:600;letter-spacing:-.01em;line-height:1.2;margin:0 0 8px;color:var(--text)}.card-header p{margin:0;font-size:14.5px;line-height:1.5;color:var(--text-soft)}.signed-in{font-size:13px;color:var(--muted);padding:8px 12px;border:1px solid var(--border);border-radius:10px;background:transparent;word-break:break-all}.warning{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:12px;border:1px solid var(--warning-border);background:var(--warning-bg);color:var(--warning-text-soft)}.warning-icon{flex-shrink:0;width:20px;height:20px;color:var(--warning-icon);margin-top:1px}.warning-icon svg{width:100%;height:100%;display:block}.warning-title{font-size:14px;font-weight:600;color:var(--warning-text);margin:0 0 4px;line-height:1.3}.warning-body{margin:0;font-size:13px;line-height:1.5;color:var(--warning-text-soft)}.export-error{margin:0;font-size:13px;line-height:1.45;color:var(--danger);padding:10px 12px;border:1px solid var(--danger-border);border-radius:10px;background:var(--danger-bg);word-break:break-word}.return-hint{margin:0;font-size:12.5px;line-height:1.45;color:var(--muted);text-align:center}.actions{display:flex;flex-direction:column;gap:8px}button{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;border-radius:12px;padding:13px 16px;font-size:15px;font-weight:600;letter-spacing:-.005em;color:var(--on-accent);background:var(--accent);cursor:pointer;transition:opacity .12s ease,transform .06s ease}button:hover{opacity:.94}button:active{transform:scale(.985)}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}button.ghost{background:transparent;color:var(--text-soft);border:1px solid var(--border)}button.ghost:hover{background:var(--border);opacity:1}.footer{display:flex;justify-content:center;align-items:center;gap:6px;color:var(--muted);font-size:12px;letter-spacing:.01em}.footer-dot{width:4px;height:4px;border-radius:50%;background:currentColor;opacity:.55}