.billing-page main { max-width: 1180px; }
.billing-filters { padding: 18px 22px; margin-bottom: 18px; overflow: visible; }
#billing-tags { max-width: 440px; }
#billing-tags .multi-select { position: relative; }
#billing-tags summary { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 40px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--ink); list-style: none; cursor: pointer; }
#billing-tags summary::-webkit-details-marker { display: none; }
#billing-tags summary > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#billing-tags summary::after { content: "⌄"; flex-shrink: 0; }
#billing-tags summary:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
#billing-tags .multi-select-menu { position: absolute; top: calc(100% + 6px); left: 0; width: 100%; z-index: 30; padding: 10px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 8px 24px #201f261a; }
#billing-tags .multi-select-menu > .link-button { margin-bottom: 8px; text-align: left; }
#billing-tags .multi-select-options { max-height: min(280px,50vh); overflow-y: auto; overscroll-behavior-y: contain; }
#billing-tags .multi-select-options label { display: flex; align-items: flex-start; gap: 8px; padding: 9px 5px; color: var(--ink); cursor: pointer; overflow-wrap: anywhere; }
#billing-tags .multi-select-options label:hover { background: var(--surface-soft); }
#billing-tags .multi-select-options input { width: auto; flex-shrink: 0; margin: 1px 0 0; accent-color: var(--brand); }
.billing-cards { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; margin: 22px 0 18px; }
.billing-card { min-width: 0; border: 1px solid var(--line); border-top: 4px solid; border-radius: 10px; padding: 22px; }
.billing-card h2 { font-size: 13px; font-weight: 600; margin: 0 0 18px; }
.billing-card strong { display: block; font-size: 36px; font-weight: 600; letter-spacing: -1px; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.billing-card p { font-size: 13px; margin: 14px 0 6px; }
.billing-card small { font-size: 11px; line-height: 1.5; color: var(--muted); }
.billing-recordings { border-top-color: #a77c42; background: #fbf7ef; }
.billing-conversations { border-top-color: #807197; background: #f7f4fa; }
.billing-refunds { border-top-color: #b66b54; background: #fcf4f0; }
.billing-refunds strong { color: #96513d; }
.billing-total { border-top-color: var(--brand); background: var(--brand-soft); }
.billing-total strong { color: var(--brand); }
@media (max-width: 1000px) { .billing-cards { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width: 600px) { .billing-cards { grid-template-columns: 1fr; } }