:root{--bg:#fafaf9;--surface:#ffffff;--border:#e7e5e4;--fg:#1c1917;--fg-muted:#57534e;--primary:#16a34a;--primary-hover:#15803d;--danger:#dc2626;--success:#16a34a;--shadow-sm:0 1px 2px rgba(0,0,0,0.04)}@media (prefers-color-scheme:dark){:root{--bg:#0c0a09;--surface:#1c1917;--border:#292524;--fg:#fafaf9;--fg-muted:#a8a29e;--primary:#22c55e;--primary-hover:#16a34a}}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,BlinkMacSystemFont,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:15px;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer}button,input,select,textarea{font-family:inherit;font-size:inherit}.container{max-width:720px;margin:0 auto;padding:24px}.nav{background:var(--surface);border-bottom:1px solid var(--border);padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.nav-brand{font-weight:700;font-size:18px}.nav-user{display:flex;gap:12px;align-items:center;color:var(--fg-muted);font-size:14px}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px;box-shadow:var(--shadow-sm)}.card+.card{margin-top:12px}.h1{font-size:28px;font-weight:700;margin:0 0 4px}.h2{font-size:20px;font-weight:600;margin:0 0 12px}.muted{color:var(--fg-muted);font-size:14px}.row,.row-between{display:flex;gap:12px;align-items:center}.row-between{justify-content:space-between}.stack{gap:12px}.stack,.stack-sm{display:flex;flex-direction:column}.stack-sm{gap:6px}.field{display:flex;flex-direction:column;gap:4px}.label{font-size:13px;font-weight:500;color:var(--fg-muted)}.input,.select,.textarea{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:10px 12px;color:var(--fg);width:100%;outline:none;transition:border-color .15s}.input:focus,.select:focus,.textarea:focus{border-color:var(--primary)}.btn{background:var(--primary);color:white;border:none;border-radius:8px;padding:10px 16px;font-weight:500;transition:background .15s}.btn:hover{background:var(--primary-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--surface);color:var(--fg);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg)}.btn-danger{background:var(--danger)}.btn-sm{padding:6px 10px;font-size:13px}.error{color:var(--danger);background:rgba(220,38,38,.1);padding:10px 12px;border-radius:8px;font-size:14px}.balance-positive{color:var(--success);font-weight:600}.balance-negative{color:var(--danger);font-weight:600}.tag{display:inline-block;padding:2px 8px;border-radius:999px;background:var(--bg);border:1px solid var(--border);font-size:12px}.empty,.tag{color:var(--fg-muted)}.empty{text-align:center;padding:48px 16px}