:root{color-scheme:light;--bg: #ffffff;--bg-sidebar: #f9f9f9;--bg-elevated: #ffffff;--panel-border: rgba(0, 0, 0, .1);--text: #0d0d0d;--muted: #666666;--primary: #10a37f;--primary-hover: #0e906f;--secondary: #ececec;--danger: #ef4444;--shadow: 0 4px 20px rgba(0, 0, 0, .05);--font-ui: "Inter", "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;--font-display: "Manrope", "Inter", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;font-family:var(--font-ui);line-height:1.5;font-weight:400;background:var(--bg);color:var(--text)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg)}button,input,textarea,select{font:inherit}button{cursor:pointer}#root{height:100vh}.screen-center,.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:var(--bg-sidebar)}.auth-card{width:min(560px,100%);padding:40px;border-radius:16px;border:1px solid var(--panel-border);background:var(--bg);box-shadow:var(--shadow)}.eyebrow{margin:0 0 8px;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:12px;font-weight:600}.auth-card h1,.sidebar-header h1{margin:0;font-size:26px;font-weight:800;letter-spacing:0;color:#111}.chat-header h2{margin:0;font-size:22px;font-weight:700;letter-spacing:0;color:#222}.auth-copy{color:var(--muted);margin:14px 0 24px;font-size:15px}.tab-row{display:flex;gap:8px;margin-bottom:24px;padding:4px;background:var(--bg-sidebar);border-radius:12px}.tab,.ghost-button,.primary-button{border:0;border-radius:8px;padding:10px 16px;transition:all .2s ease;font-weight:500;font-size:14px}.tab{flex:1;color:var(--muted);background:transparent}.ghost-button{color:var(--text);background:transparent;border:1px solid var(--panel-border)}.tab.active{background:var(--bg);color:var(--text);box-shadow:0 1px 3px 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rgba(255,255,255,.18);background:linear-gradient(180deg,#fcfefef5,#f4f9f9f5);box-shadow:0 24px 60px #00000029;gap:20px}.wallet-header{align-items:flex-start}.wallet-header-actions,.wallet-section-header,.wallet-payment-row,.wallet-list-item,.wallet-inline-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}.wallet-summary-grid,.wallet-invite-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.wallet-summary-grid-dual{grid-template-columns:repeat(3,minmax(0,1fr))}.wallet-dashboard-grid,.wallet-workbench{display:grid;grid-template-columns:repeat(auto-fit,minmax(380px,1fr));gap:20px;align-items:start}.wallet-rail,.wallet-column{display:grid;gap:18px;min-width:0}.wallet-rail{padding:18px;border-radius:26px;border:1px solid rgba(15,118,110,.12);background:linear-gradient(180deg,#f8fcfcf5,#f1f7f7f0);box-shadow:inset 0 1px #ffffffd9,0 18px 34px #0f766e0d}.wallet-rail-header{display:grid;gap:6px;padding:4px 4px 2px}.wallet-rail-header 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