.usage-container{min-height:100vh;background:var(--bg);padding:32px 24px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.usage-header{margin-bottom:32px;max-width:1400px;margin-left:auto;margin-right:auto}.usage-header-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.usage-header h1{font-size:32px;font-weight:700;color:var(--text);margin:0}.usage-subtitle{font-size:14px;color:var(--text-muted);margin:0}.usage-refresh-btn{width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:var(--surface, var(--bg-elevated));color:var(--text-muted);cursor:pointer;font-size:18px;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.usage-refresh-btn:hover{background:var(--surface-soft, var(--bg-elevated));border-color:var(--border);transform:rotate(180deg)}.usage-alert{max-width:1400px;margin:0 auto 24px;padding:12px 16px;border-radius:8px;font-size:14px;display:flex;align-items:center;gap:8px}.usage-alert-error{background:var(--danger-bg, rgba(220,38,38,.12));color:var(--danger-text);border:1px solid var(--error)}.usage-main{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:1400px;margin:0 auto}.usage-left{display:flex;flex-direction:column;gap:20px}.usage-right{display:flex;flex-direction:column}.usage-card{background:var(--surface, var(--bg-elevated));border-radius:12px;border:1px solid var(--border);padding:20px;box-shadow:0 1px 3px #0000000f;transition:all .2s ease}.usage-card:hover{border-color:var(--border);box-shadow:0 4px 6px #00000012}.usage-card-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:14px;font-weight:600;color:var(--text)}.usage-card-header svg{color:var(--accent);flex-shrink:0}.usage-card-balance{background:var(--accent);color:var(--accent-fg);border:none}.usage-card-balance .usage-card-header{color:color-mix(in srgb,var(--accent-fg) 90%,transparent);margin-bottom:20px}.usage-card-balance .usage-card-header svg{color:color-mix(in srgb,var(--accent-fg) 80%,transparent)}.usage-balance-amount{font-size:42px;font-weight:700;margin-bottom:16px;text-shadow:0 2px 4px rgba(0,0,0,.1)}.usage-balance-meta{margin-bottom:16px;min-height:24px}.usage-badge{display:inline-block;font-size:12px;padding:4px 10px;background:color-mix(in srgb,var(--accent-fg) 20%,transparent);border-radius:16px;margin-right:8px}.usage-badge-warning{background:#f59e0b4d}.usage-card-action{width:100%;padding:10px 16px;border:1px solid color-mix(in srgb,var(--accent-fg) 30%,transparent);background:color-mix(in srgb,var(--accent-fg) 15%,transparent);border-radius:10px;color:var(--accent-fg);font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease}.usage-card-action:hover{background:color-mix(in srgb,var(--accent-fg) 25%,transparent);border-color:color-mix(in srgb,var(--accent-fg) 50%,transparent)}.usage-stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.usage-stat-card{background:var(--surface-soft, var(--bg-elevated));border:1px solid var(--surface-soft, var(--bg-elevated));border-radius:10px;padding:16px;text-align:center;position:relative;transition:all .2s ease}.usage-stat-card:hover{background:var(--surface-soft, var(--bg-elevated));border-color:var(--border)}.usage-stat-icon{position:absolute;top:8px;right:12px;font-size:20px;opacity:.5}.usage-stat-label{font-size:12px;color:var(--text-muted);font-weight:500;margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}.usage-stat-value{font-size:20px;font-weight:700;color:var(--text)}.usage-card-tokens{background:var(--surface, var(--bg-elevated))}.usage-token-list{display:flex;flex-direction:column;gap:2px}.usage-token-item{padding:12px;background:var(--surface-soft, var(--bg-elevated));border-radius:8px;border:1px solid var(--surface-soft, var(--bg-elevated));transition:all .2s ease}.usage-token-item:hover{background:var(--surface-soft, var(--bg-elevated));border-color:var(--border)}.usage-token-tier{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.usage-tier-name{font-size:13px;font-weight:600;color:var(--text)}.usage-tier-cost{font-size:13px;font-weight:700;color:var(--green)}.usage-token-details{display:flex;justify-content:space-between;font-size:12px;color:var(--text-muted)}.usage-token-total{display:flex;justify-content:space-between;align-items:center;padding:12px;background:var(--accent);border-radius:8px;color:var(--accent-fg);font-weight:600;margin-top:8px}.usage-token-total-amount{font-size:16px;font-weight:700}.usage-card-transactions{max-height:600px;overflow-y:auto}.usage-transactions-list{display:flex;flex-direction:column;gap:1px}.usage-transaction-item{display:flex;justify-content:space-between;align-items:center;padding:14px 12px;border-radius:8px;background:var(--surface-soft, var(--bg-elevated));border:1px solid var(--surface-soft, var(--bg-elevated));transition:all .2s ease;font-size:13px}.usage-transaction-item:hover{background:var(--surface-soft, var(--bg-elevated));border-color:var(--border)}.usage-tx-left{display:flex;align-items:center;gap:12px;flex:1}.usage-tx-icon{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;flex-shrink:0}.usage-tx-credit{background:var(--success-bg, rgba(16,163,127,.12));color:var(--success-text)}.usage-tx-debit{background:var(--danger-bg, rgba(220,38,38,.12));color:var(--danger-text)}.usage-tx-info{min-width:0;flex:1}.usage-tx-type{font-weight:600;color:var(--text);margin-bottom:2px}.usage-tx-time{font-size:12px;color:var(--text-faint)}.usage-tx-amount{font-weight:700;font-size:14px;white-space:nowrap}.usage-tx-amount.usage-tx-credit{color:var(--success-text)}.usage-tx-amount.usage-tx-debit{color:var(--danger-text)}.usage-empty-state{text-align:center;padding:40px 20px}.usage-empty-icon{font-size:48px;margin-bottom:12px;opacity:.3}.usage-empty-state p{color:var(--text-faint);font-size:14px;margin:0}.usage-loading{text-align:center;padding:60px 20px;color:var(--text-muted);font-size:16px}@media(max-width:1024px){.usage-main{grid-template-columns:1fr}.usage-container{padding:20px 16px}.usage-header h1{font-size:24px}.usage-balance-amount{font-size:32px}}@media(max-width:640px){.usage-container{padding:16px 12px}.usage-header h1{font-size:20px}.usage-stats-grid{grid-template-columns:1fr}.usage-header-top{flex-direction:column;align-items:flex-start;gap:12px}.usage-refresh-btn{width:36px;height:36px;font-size:16px}.usage-balance-amount{font-size:28px}.usage-transaction-item{padding:12px 10px}.usage-tx-icon{width:32px;height:32px}.usage-tx-type{font-size:12px}.usage-tx-time{font-size:11px}.usage-tx-amount{font-size:12px}}.usage-card-transactions::-webkit-scrollbar{width:6px}.usage-card-transactions::-webkit-scrollbar-track{background:transparent}.usage-card-transactions::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.usage-card-transactions::-webkit-scrollbar-thumb:hover{background:var(--text-faint)}