:root{--bg:#0f1115;--card:#1a1d24;--text:#e8eaf0;--muted:#9aa3b2;--accent:#4f8cff;--danger:#ff5d5d;--border:#2a2e3a}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.center{justify-content:center;align-items:center;min-height:100vh;display:flex}.login-hero{background:radial-gradient(900px 500px at 85% -10%, #4f8cff2e, transparent 60%), radial-gradient(700px 420px at -10% 110%, #ff9d3c24, transparent 60%), var(--bg);justify-content:center;align-items:center;min-height:100vh;display:flex;position:relative;overflow:hidden}.login-glow{filter:blur(120px);opacity:.35;pointer-events:none;border-radius:50%;width:460px;height:460px;position:absolute}.glow-a{background:#4f8cff;top:-160px;right:-120px}.glow-b{background:#ff9d3c;bottom:-180px;left:-140px}.login-shell{z-index:1;border:1px solid var(--border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#1a1d24d9;border-radius:20px;grid-template-columns:1.1fr 1fr;gap:0;width:min(960px,94vw);display:grid;position:relative;overflow:hidden;box-shadow:0 30px 80px #00000073}.login-side{border-right:1px solid var(--border);background:radial-gradient(500px 260px at 20% 20%,#4f8cff1f,#0000 65%),linear-gradient(160deg,#171a22 0%,#1a1d24 100%);flex-direction:column;gap:8px;padding:40px 36px;display:flex}.logo-row{align-items:center;gap:10px;margin-bottom:22px;display:flex}.logo-dot{background:linear-gradient(135deg,#4f8cff,#8ab6ff);border-radius:4px;width:12px;height:12px;box-shadow:0 0 14px #4f8cffcc}.logo-name{letter-spacing:.02em;font-size:1.05rem;font-weight:700}.side-title{margin:6px 0 10px;font-size:1.9rem;font-weight:800;line-height:1.15}.side-title .accent{background:linear-gradient(90deg,#4f8cff,#8ab6ff 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var(--bg);border-radius:14px;align-items:center;gap:10px;margin-bottom:14px;padding:14px 18px;display:flex}.amount-cur{color:var(--muted);letter-spacing:.04em;font-size:.95rem;font-weight:800}.amount-input{color:var(--text);font-variant-numeric:tabular-nums;background:0 0;border:none;outline:none;flex:1;min-width:0;font-size:1.9rem;font-weight:800}.amount-input::placeholder{color:#3b4152;font-weight:800}.cat-grid{grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px;display:grid}.cat-tile{background:var(--bg);border:1px solid var(--border);color:var(--text);font:inherit;cursor:pointer;border-radius:12px;flex-direction:column;align-items:center;gap:4px;padding:10px 4px;transition:transform 80ms,border-color .15s;display:flex}.cat-tile:hover{border-color:var(--accent)}.cat-tile:active{transform:scale(.96)}.cat-tile.on{background:var(--accent);border-color:var(--accent)}.cat-icon{font-size:1.35rem;line-height:1}.cat-name{color:var(--muted);font-size:.72rem}.cat-tile.on 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var(--border);border-radius:999px;height:10px;overflow:hidden}.bar-fill{background:linear-gradient(90deg,#4f8cff,#8ab6ff);border-radius:999px;height:100%}.bar-amount{color:var(--muted);font-variant-numeric:tabular-nums}.empty-note{color:var(--muted);font-size:.9rem}.dash-hero{border:1px solid var(--border);background:radial-gradient(420px 180px at 0% 0%, #4f8cff29, transparent 65%), radial-gradient(300px 160px at 100% 100%, #ff9d3c1a, transparent 60%), var(--card);border-radius:18px;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;padding:26px 24px;display:flex}.dash-hi{color:var(--muted);margin:0 0 2px;font-size:.9rem}.dash-name{margin:0;font-size:1.7rem;font-weight:800}.dash-stats{grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px;display:grid}.stat-card{background:var(--card);border:1px solid var(--border);border-radius:14px;flex-direction:column;gap:4px;padding:16px 18px;display:flex}.stat-num{font-size:1.6rem;font-weight:800;line-height:1}.stat-label{color:var(--muted);font-size:.8rem}.dash-columns{grid-template-columns:1fr 1fr;gap:12px;display:grid}.section-h{margin-top:8px}.role-badge{border:1px solid var(--border);color:var(--muted);white-space:nowrap;border-radius:999px;padding:3px 9px;font-size:.72rem}.role-badge.owner{color:#ffb84f;background:#ffb84f1f;border-color:#ffb84f66}.admin-panel{border:1px dashed var(--border);background:#0f111580;border-radius:12px;gap:10px;margin-top:14px;padding:16px;display:grid}.admin-panel h3{margin:4px 0 0;font-size:.92rem}.admin-member{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:8px;padding-bottom:8px;display:flex}.btn.tiny{border-radius:7px;padding:4px 9px;font-size:.75rem}.btn.danger.solid{border-color:var(--danger);color:var(--danger);background:#ff5d5d1f;justify-self:start}@media (width<=700px){.dash-stats,.dash-columns{grid-template-columns:1fr}.dash-hero{flex-direction:column;align-items:flex-start}}.container{max-width:720px;margin:0 auto;padding:24px 16px 64px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;margin-bottom:16px;padding:16px}.header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px;display:flex}h1{margin:0;font-size:1.6rem}h2{margin:0 0 12px;font-size:1.05rem}.subtitle{color:var(--muted);margin:4px 0 0}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.grid{grid-template-columns:1fr 1fr;gap:8px;display:grid}.grid .btn{grid-column:1/-1}input,select{background:var(--bg);border:1px solid var(--border);color:var(--text);font:inherit;border-radius:8px;width:100%;min-width:0;padding:10px 12px}.row input,.row select{flex:1}.btn{background:var(--card);color:var(--text);border:1px solid var(--border);font:inherit;cursor:pointer;white-space:nowrap;border-radius:8px;padding:10px 16px}.btn:hover{filter:brightness(1.15)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.small{padding:6px 12px;font-size:.85rem}.btn.danger{color:var(--danger);border-color:var(--danger)}.link{color:var(--accent);cursor:pointer;font:inherit;background:0 0;border:none;margin-top:12px;padding:0}.divider{color:var(--muted);text-align:center;margin:16px 0 8px;font-size:.85rem}.error{color:var(--danger)}.message{color:var(--accent)}.muted{color:var(--muted)}.small-text{font-size:.8rem}.avatar{object-fit:cover;border-radius:50%;width:36px;height:36px}.avatar.sm{width:24px;height:24px;margin-right:8px}.stack{gap:8px;display:grid}.group-list,.member-list,.expense-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.group-item{background:var(--card);border:1px solid var(--border);width:100%;color:var(--text);font:inherit;cursor:pointer;border-radius:10px;justify-content:space-between;align-items:center;gap:10px;padding:14px 16px;display:flex}.group-item:hover{border-color:var(--accent)}.group-name{font-weight:600}.expense-item{background:var(--card);border:1px solid var(--border);border-radius:10px;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;display:flex}.amount{white-space:nowrap;font-weight:600}.tag{background:var(--bg);border:1px solid var(--border);color:var(--muted);border-radius:999px;margin-left:8px;padding:2px 8px;font-size:.75rem;display:inline-block}.invite{align-items:center;gap:10px;padding:10px 14px;display:flex}.invite code{background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:4px 8px}@media (width<=560px){.grid{grid-template-columns:1fr}.summary-grid{grid-template-columns:1fr;justify-items:center}.legend{width:100%}.bar-row{grid-template-columns:90px 1fr auto}}