:root{--bg:#0f172a;--surface:#1e293b;--surface-2:#334155;--border:#475569;--text:#f1f5f9;--text-muted:#94a3b8;--accent:#6366f1;--accent-2:#8b5cf6;--warning:#f59e0b;--danger:#ef4444;--success:#22c55e;--cyan:#06b6d4;--blue:#3b82f6}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif}.app{max-width:1200px;margin:0 auto;padding:32px 24px}.app.loading,.app.error{flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:100vh;display:flex}.spinner{border:3px solid var(--surface-2);border-top-color:var(--accent);border-radius:50%;width:40px;height:40px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.app-header{border-bottom:1px solid var(--surface-2);justify-content:space-between;align-items:center;margin-bottom:32px;padding-bottom:20px;display:flex}.header-left{align-items:center;gap:16px;display:flex}.header-left h1{background:linear-gradient(135deg, var(--accent), var(--cyan));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:24px;font-weight:700}.plan-badge{background:var(--accent);color:#fff;text-transform:capitalize;border-radius:20px;padding:4px 14px;font-size:13px;font-weight:600}.date-range{color:var(--text-muted);font-size:14px}.cards-grid{grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:40px;display:grid}@media (width<=1024px){.cards-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=600px){.cards-grid{grid-template-columns:1fr}}.usage-card{background:var(--surface);border:1px solid var(--surface-2);border-radius:16px;padding:24px;transition:transform .2s,box-shadow .2s}.usage-card:hover{transform:translateY(-2px);box-shadow:0 8px 30px #0000004d}.usage-card.empty{flex-direction:column;justify-content:center;align-items:center;min-height:200px;display:flex}.usage-card h3{color:var(--text-muted);text-align:center;margin-bottom:16px;font-size:16px;font-weight:600}.no-data{color:var(--text-muted);font-size:14px}.progress-ring{width:120px;height:120px;margin:0 auto 20px;position:relative}.progress-ring svg{width:100%;height:100%}.ring-bg{opacity:.3}.ring-fill{transition:stroke-dasharray .6s}.ring-text{flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.pct{color:var(--text);font-size:22px;font-weight:700}.pct.warning{color:var(--warning)}.pct.critical{color:var(--danger)}.pct-label{color:var(--text-muted);margin-top:2px;font-size:11px}.stats{flex-direction:column;gap:8px;margin-bottom:12px;display:flex}.stat-row{justify-content:space-between;align-items:center;display:flex}.stat-row.small{font-size:12px}.stat-label{color:var(--text-muted);font-size:13px}.stat-row.small .stat-label{font-size:11px}.stat-value{font-variant-numeric:tabular-nums;font-size:14px;font-weight:600}.stat-row.small .stat-value{color:var(--text-muted);font-size:11px}.stat-value.used{color:var(--warning)}.stat-value.remaining{color:var(--success)}.time-info{border-top:1px solid var(--surface-2);flex-direction:column;gap:4px;padding-top:10px;display:flex}.chart-section{background:var(--surface);border:1px solid var(--surface-2);border-radius:16px;margin-top:40px;padding:28px}.chart-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.chart-controls h2{margin:0;font-size:20px;font-weight:600}.chart-filters{align-items:center;gap:12px;display:flex}.model-select{background:var(--surface-2);color:var(--text);border:1px solid var(--border);cursor:pointer;border-radius:8px;outline:none;min-width:180px;padding:8px 14px;font-size:13px}.model-select:focus{border-color:var(--accent)}.model-select option{background:var(--surface);color:var(--text)}.chart-loading{justify-content:center;padding:40px 0;display:flex}.badge{background:var(--surface-2);color:var(--text-muted);border-radius:12px;padding:3px 10px;font-size:12px;font-weight:500}.interval-toggle{gap:8px;display:flex}.interval-toggle button{background:var(--surface-2);color:var(--text-muted);cursor:pointer;border:none;border-radius:8px;padding:8px 20px;font-size:14px;transition:all .2s}.interval-toggle button:hover{background:var(--border);color:var(--text)}.interval-toggle button.active{background:var(--accent);color:#fff}.chart-container{margin-bottom:24px}.detail-table-wrapper{border:1px solid var(--surface-2);border-radius:8px;overflow-x:auto}.detail-table{border-collapse:collapse;width:100%;font-size:13px}.detail-table th{background:var(--surface-2);color:var(--text-muted);text-align:left;text-transform:uppercase;letter-spacing:.5px;padding:10px 14px;font-size:12px;font-weight:600}.detail-table td{border-top:1px solid var(--surface-2);color:var(--text);padding:10px 14px}.detail-table tr:hover td{background:#6366f10f}.mono{font-variant-numeric:tabular-nums;font-family:SF Mono,Fira Code,monospace}.billing{border-radius:4px;padding:2px 8px;font-size:12px;font-weight:500;display:inline-block}.billing.within{color:var(--success);background:#22c55e26}.billing.outside{color:var(--danger);background:#ef444426}