/* ── BILLING APP ──────────────────────────────────────── */

:root {
  --sidebar-hover: rgba(0,0,0,.04);
  --text-tertiary: #a0aec0;
  --green: #38a169;
  --red: #e53e3e;
  --yellow: #d69e2e;
}

[data-theme="dark"] {
  --sidebar-hover: rgba(255,255,255,.06);
  --text-tertiary: #4a5568;
  --green: #48bb78;
  --red: #fc8181;
  --yellow: #ecc94b;
}

/* Layout */
.bill-layout {
  display: flex;
  min-height: 100vh;
  background: var(--bg-body);
}

.bill-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform .25s ease;
}

.bill-sidebar-brand {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: 1.25rem 1.25rem .75rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  transition: opacity .15s;
}

.bill-sidebar-brand:hover {
  opacity: .8;
  text-decoration: none;
}

.bill-sidebar-brand svg {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.bill-sidebar-label {
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-tertiary);
  padding: 1.25rem 1.25rem .4rem;
}

.bill-sidebar-link {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .58rem 1.25rem;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: .85rem;
  font-weight: 500;
  transition: all .15s;
  border-left: 3px solid transparent;
  margin: 1px .5rem;
  border-radius: 6px;
  position: relative;
}

.bill-sidebar-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: .7;
  transition: opacity .15s;
}

.bill-sidebar-link:hover {
  background: var(--sidebar-hover);
  color: var(--text-primary);
  text-decoration: none;
}

.bill-sidebar-link.active {
  background: var(--primary-light);
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 600;
}

.bill-sidebar-link.active svg {
  opacity: 1;
}

.bill-sidebar-spacer {
  flex: 1;
}

/* Main area */
.bill-main {
  flex: 1;
  margin-left: 240px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Topbar */
.bill-topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .75rem 1.5rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

.bill-sidebar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: all .12s;
}

.bill-sidebar-toggle:hover {
  background: var(--sidebar-hover);
  color: var(--text-primary);
}

.bill-sidebar-toggle svg {
  width: 22px;
  height: 22px;
  display: block;
}

.bill-topbar-title {
  font-size: .95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.bill-topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: .4rem;
}

.bill-topbar-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all .12s;
}

.bill-topbar-icon-btn:hover {
  background: var(--sidebar-hover);
  color: var(--text-primary);
}

.bill-topbar-icon-btn svg {
  width: 20px;
  height: 20px;
  display: block;
}

/* Content area */
.bill-content {
  flex: 1;
  padding: 1.5rem;
}

/* ── Metric Cards ── */
.bill-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.bill-metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.25rem;
  transition: all .15s;
}

.bill-metric-card:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  border-color: var(--primary);
}

.bill-metric-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: .6rem;
}

.bill-metric-icon svg {
  width: 20px;
  height: 20px;
}

.bill-metric-icon--green { background: rgba(56,161,105,.12); }
.bill-metric-icon--green svg { color: #38a169; }
.bill-metric-icon--red { background: rgba(229,62,62,.12); }
.bill-metric-icon--red svg { color: #e53e3e; }
.bill-metric-icon--blue { background: rgba(49,130,206,.12); }
.bill-metric-icon--blue svg { color: #3182ce; }
.bill-metric-icon--purple { background: rgba(128,90,213,.12); }
.bill-metric-icon--purple svg { color: #805ad5; }

.bill-metric-label {
  font-size: .75rem;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.bill-metric-value {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-top: .15rem;
}

.bill-metric-change {
  font-size: .75rem;
  margin-top: .3rem;
}

.bill-metric-change.up { color: var(--green); }
.bill-metric-change.down { color: var(--red); }

/* ── Cards ── */
.bill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius, 10px);
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-sm, none);
  transition: box-shadow var(--transition, .2s), border-color var(--transition, .2s);
}

.bill-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  gap: .75rem;
}

.bill-card-header h3 {
  margin: 0;
  font-size: .95rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: .5rem;
}

.bill-card-body {
  padding: 1.25rem;
}

.bill-card-body--flush {
  padding: 0;
}

.bill-card .bill-card-actions {
  display: flex;
  align-items: center;
  gap: .5rem;
}

/* ── Data Tables ── */
.bill-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.bill-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}

.bill-table thead {
  background: var(--bg-card-alt);
}

.bill-table th {
  text-align: left;
  padding: .7rem .85rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}

.bill-table td {
  padding: .7rem .85rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}

.bill-table tbody tr {
  transition: background .1s;
}

.bill-table tbody tr:hover td {
  background: var(--sidebar-hover);
}

.bill-table tbody tr:last-child td {
  border-bottom: none;
}

.bill-table .bill-actions {
  display: flex;
  gap: .25rem;
  justify-content: flex-end;
}

.bill-table .bill-actions a,
.bill-table .bill-actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  border: none;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  text-decoration: none;
  transition: all .12s;
}

.bill-table .bill-actions a:hover,
.bill-table .bill-actions button:hover {
  background: var(--sidebar-hover);
  color: var(--primary);
}

.bill-table .bill-actions a:focus-visible,
.bill-table .bill-actions button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.bill-table .bill-actions svg {
  width: 15px;
  height: 15px;
}

.bill-table-empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-secondary);
  font-size: .85rem;
}

/* ── Utility ── */
.bill-text-secondary { color: var(--text-secondary) !important; }
.bill-text-muted { color: var(--text-muted) !important; }
.bill-text-primary { color: var(--text-primary) !important; }
.bill-font-mono { font-family: var(--font-mono); }
.bill-text-sm { font-size: .78rem !important; }
.bill-text-xs { font-size: .72rem !important; }
.bill-truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bill-flex { display: flex; align-items: center; }
.bill-flex-center { display: flex; align-items: center; justify-content: center; }
.bill-gap-sm { gap: .35rem; }
.bill-gap-1 { gap: .5rem; }
.bill-gap { gap: .75rem; }
.bill-gap-lg { gap: 1.25rem; }
.bill-mb { margin-bottom: 1.25rem; }
.bill-mb-2 { margin-bottom: .75rem; }
.bill-mb-sm { margin-bottom: .75rem; }
.bill-mt-auto { margin-top: auto; }
.bill-w-full { width: 100%; }
.bill-border-dashed { border-style: dashed !important; }
.bill-round { border-radius: 10px; }
.bill-m-0 { margin: 0 !important; }
.bill-p-0 { padding: 0 !important; }

/* ── Status Badges ── */
.bill-badge {
  display: inline-block;
  padding: .22rem .65rem;
  border-radius: var(--radius-pill, 999px);
  font-size: .72rem;
  font-weight: 600;
  line-height: 1.5;
  white-space: nowrap;
}

.bill-badge-success { background: var(--success-light); color: var(--green); }
.bill-badge-danger { background: var(--danger-light); color: var(--red); }
.bill-badge-warning { background: var(--warning-light); color: var(--yellow); }
.bill-badge-info { background: var(--info-light); color: var(--info); }
.bill-badge-secondary { background: var(--bg-secondary); color: var(--text-secondary); }
.bill-badge-critical { background: var(--red); color: #fff; }

/* ── Client Info Card ── */
.bill-client-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 1.25rem;
}

.bill-client-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bill-client-avatar span {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
}

.bill-client-meta h2 {
  margin: 0;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.bill-client-meta p {
  margin: .15rem 0 0;
  font-size: .8rem;
  color: var(--text-secondary);
}

/* ── Tabs ── */
.bill-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 1.25rem;
}

.bill-tab {
  padding: .65rem 1.1rem;
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all .12s;
  text-decoration: none;
}

.bill-tab:hover {
  color: var(--text-primary);
}

.bill-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.bill-tab-content { padding: .25rem 0 0; }

/* ── Invoice Layout ── */
.bill-invoice {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 100%;
}

.bill-invoice-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 2rem 2rem 1.5rem;
  border-bottom: 2px solid var(--border);
}

.bill-invoice-head-left h1 {
  margin: 0 0 .25rem;
  font-size: 1.5rem;
  color: var(--text-primary);
}

.bill-invoice-head-left p {
  margin: 0;
  color: var(--text-secondary);
  font-size: .85rem;
}

.bill-invoice-head-right {
  text-align: right;
}

.bill-invoice-head-right h2 {
  margin: 0 0 .3rem;
  font-size: 1.8rem;
  color: var(--text-primary);
  font-weight: 700;
}

.bill-invoice-body {
  padding: 1.5rem 2rem;
}

.bill-invoice-addresses {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.bill-invoice-addr h4 {
  margin: 0 0 .25rem;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-tertiary);
}

.bill-invoice-addr p {
  margin: 0;
  font-size: .88rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.bill-invoice-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: .85rem;
}

.bill-invoice-table th {
  text-align: left;
  padding: .65rem .75rem;
  font-weight: 600;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-secondary);
  border-bottom: 2px solid var(--border);
  background: var(--bg-card-alt);
}

.bill-invoice-table th:last-child,
.bill-invoice-table td:last-child { text-align: right; }

.bill-invoice-table td {
  padding: .65rem .75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
}

.bill-invoice-totals {
  margin-left: auto;
  width: 280px;
}

.bill-invoice-totals table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}

.bill-invoice-totals td {
  padding: .45rem .75rem;
  color: var(--text-secondary);
}

.bill-invoice-totals td:last-child {
  text-align: right;
  font-weight: 600;
  color: var(--text-primary);
}

.bill-invoice-totals .total-row td {
  border-top: 2px solid var(--border);
  padding-top: .65rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.bill-invoice-footer {
  padding: 1.25rem 2rem 2rem;
  border-top: 1px solid var(--border);
  font-size: .8rem;
  color: var(--text-secondary);
}

.bill-invoice-footer p { margin: .25rem 0; }

/* ── Products Grid ── */
.bill-products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.bill-product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  transition: all .15s;
}

.bill-product-card:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  border-color: var(--primary);
}

.bill-product-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: .75rem;
}

.bill-product-icon svg {
  width: 22px;
  height: 22px;
  color: var(--primary);
}

.bill-product-name {
  font-size: .95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: .25rem;
}

.bill-product-price {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: .5rem;
}

.bill-product-price span {
  font-size: .75rem;
  font-weight: 500;
  color: var(--text-tertiary);
}

.bill-product-desc {
  font-size: .8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.bill-product-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  font-size: .8rem;
}

.bill-product-features li {
  padding: .3rem 0;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: .5rem;
}

.bill-product-features li svg {
  width: 14px;
  height: 14px;
  color: var(--green);
  flex-shrink: 0;
}

/* ── Search / Filters ── */
.bill-search-bar {
  display: flex;
  gap: .75rem;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.bill-search-input {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 .85rem;
  flex: 1;
  min-width: 200px;
  transition: border-color .15s, box-shadow .15s;
}

.bill-search-input:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.bill-search-input svg {
  width: 16px;
  height: 16px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.bill-search-input input {
  border: none;
  background: none;
  padding: .6rem 0;
  font-size: .85rem;
  color: var(--text-primary);
  outline: none;
  width: 100%;
}

.bill-search-input input::placeholder {
  color: var(--text-tertiary);
}

.bill-filter-select {
  width: auto;
  min-width: 130px;
}

/* ── Forms ── */
.bill-form {
  width: 100%;
}

.bill-form-wide {
  width: 100%;
}

.bill-form-group {
  margin-bottom: 1.25rem;
}

.bill-form-group label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: .35rem;
}

.bill-input-group {
  display: flex;
  gap: .5rem;
  align-items: center;
}

.bill-input-group .bill-form-control {
  flex: 1 1 auto;
  min-width: 0;
}

.bill-input-group .bill-btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

.bill-form-control {
  width: 100%;
  padding: .6rem .85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: .85rem;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  font-family: inherit;
}

.bill-form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.bill-form-control--sm {
  font-size: .82rem;
  padding: .45rem .7rem;
}

select.bill-form-control {
  cursor: pointer;
  appearance: auto;
}

textarea.bill-form-control {
  resize: vertical;
  min-height: 72px;
}

.bill-form-hint {
  font-size: .74rem;
  color: var(--text-tertiary);
  margin-top: .25rem;
  line-height: 1.4;
}

.bill-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.bill-form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}

.bill-form-row-4 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 1rem;
}

.bill-form-actions {
  display: flex;
  gap: .75rem;
  align-items: center;
  padding-top: .5rem;
}

.bill-form .bill-form-control[readonly] {
  background: var(--bg-card-alt);
  cursor: not-allowed;
}

/* ── Buttons ── */
.bill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: .55rem 1.15rem;
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .15s;
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}

.bill-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.bill-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring, 0 0 0 3px rgba(26, 115, 232, .18));
}

.bill-btn-primary {
  background: var(--primary);
  color: var(--text-on-primary, #fff);
  border-color: var(--primary);
}

.bill-btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 2px 8px rgba(26, 115, 232, .25);
  text-decoration: none;
}

.bill-btn-outline {
  background: none;
  color: var(--text-secondary);
  border-color: var(--border);
}

.bill-btn-outline:hover {
  border-color: var(--text-tertiary);
  background: var(--bg-card-alt);
  color: var(--text-primary);
  text-decoration: none;
}

.bill-btn-danger {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

.bill-btn-danger:hover {
  opacity: .9;
  box-shadow: 0 2px 8px rgba(229, 62, 62, .25);
  text-decoration: none;
}

.bill-btn-success {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}

.bill-btn-success:hover {
  opacity: .9;
  text-decoration: none;
}

.bill-btn-sm {
  padding: .35rem .75rem;
  font-size: .78rem;
}

.bill-btn-sm svg {
  width: 14px;
  height: 14px;
}

.bill-btn-group {
  display: flex;
  gap: .5rem;
  align-items: center;
}

.bill-btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: none;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all .12s;
  text-decoration: none;
}

.bill-btn-icon:hover {
  background: var(--sidebar-hover);
  color: var(--text-primary);
}

.bill-btn-icon svg {
  width: 16px;
  height: 16px;
}

/* ── Pagination ── */
.bill-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  margin-top: 1.25rem;
}

.bill-pagination a,
.bill-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 .55rem;
  border-radius: 6px;
  font-size: .82rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid transparent;
  background: var(--bg-card);
  border-color: var(--border);
  transition: all .15s;
}

.bill-pagination a:hover {
  border-color: var(--primary);
  color: var(--primary);
  text-decoration: none;
}

.bill-pagination .active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.bill-pagination a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ── Page Header ── */
.bill-page-header {
  margin-bottom: 1.25rem;
}

.bill-page-header h1 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 .2rem;
}

.bill-page-header p {
  margin: 0;
  font-size: .85rem;
  color: var(--text-secondary);
}

/* ── Action Bar ── */
.bill-action-bar {
  display: flex;
  gap: .75rem;
  align-items: center;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.bill-action-bar--end {
  justify-content: flex-end;
}

/* ── Reports ── */
.bill-report-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.bill-chart-body {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 200px;
  padding: 1rem .75rem 0;
}

.bill-chart-bar {
  flex: 1;
  background: linear-gradient(to top, var(--primary), transparent);
  border-radius: 4px 4px 0 0;
  transition: opacity .2s, transform .2s;
  min-height: 6px;
}

.bill-chart-bar:hover {
  opacity: .8;
  transform: scaleY(1.03);
  transform-origin: bottom;
}

.bill-chart-labels {
  display: flex;
  justify-content: space-between;
  font-size: .65rem;
  color: var(--text-tertiary);
  margin-top: .4rem;
}

.bill-prod-item {
  margin-bottom: .85rem;
}

.bill-prod-head {
  display: flex;
  justify-content: space-between;
  font-size: .8rem;
  margin-bottom: .3rem;
}

.bill-prod-name {
  color: var(--text-primary);
}

.bill-prod-revenue {
  font-weight: 600;
}

.bill-progress-bar {
  height: 8px;
  background: var(--bg-card-alt);
  border-radius: 4px;
  overflow: hidden;
}

.bill-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), rgba(26,115,232,.5));
  border-radius: 4px;
  transition: width .4s ease;
}

.bill-cur-pointer {
  cursor: pointer;
}

.bill-font-mono {
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  font-size: .8rem;
}

.bill-chart-placeholder {
  height: 220px;
  border-radius: 8px;
  background: var(--bg-card-alt);
  border: 1px solid var(--border);
  display: flex;
  align-items: flex-end;
  padding: 1rem 1rem 0;
  gap: 2px;
}

.bill-chart-bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  min-height: 4px;
  transition: height .3s;
}

/* ── Login Page ── */
.bill-login-page {
  background: var(--bg-body);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.bill-login-wrap {
  width: 100%;
  max-width: 420px;
  animation: billFadeIn .4s ease;
}

.bill-login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
  transition: background var(--transition-slow), border-color var(--transition-slow), box-shadow var(--transition-slow);
}

.bill-login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.bill-login-header svg.bill-login-logo {
  width: 48px;
  height: 48px;
  margin-bottom: .75rem;
}

.bill-login-header h1 {
  margin: 0 0 .25rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.bill-login-header p {
  margin: 0;
  font-size: .85rem;
  color: var(--text-secondary);
}

.bill-login-error {
  background: rgba(229,62,62,.1);
  border: 1px solid rgba(229,62,62,.2);
  border-left: 3px solid var(--red);
  border-radius: 8px;
  padding: .65rem .85rem;
  font-size: .82rem;
  color: var(--red);
  margin-bottom: 1rem;
  animation: billFadeIn .2s ease;
}

.bill-login-field {
  margin-bottom: 1.1rem;
}

.bill-login-field label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: .35rem;
}

.bill-login-input-wrap {
  display: flex;
  align-items: center;
  gap: .65rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 .85rem;
  background: var(--bg-card);
  transition: border-color .15s, box-shadow .15s;
}

.bill-login-input-wrap:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.bill-login-input-wrap svg {
  width: 18px;
  height: 18px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.bill-login-input-wrap input {
  border: none;
  background: none;
  padding: .7rem 0;
  font-size: .9rem;
  color: var(--text-primary);
  outline: none;
  width: 100%;
}

.bill-login-input-wrap input::placeholder {
  color: var(--text-tertiary);
}

.bill-login-btn {
  width: 100%;
  padding: .7rem;
  border: none;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  margin-top: .5rem;
}

.bill-login-btn:hover {
  opacity: .9;
  box-shadow: 0 3px 12px rgba(26,115,232,.25);
}

.bill-login-btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.bill-login-footer {
  text-align: center;
  margin-top: 1.5rem;
  font-size: .82rem;
}

.bill-login-footer a {
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color .15s;
}

.bill-login-footer a:hover {
  color: var(--primary);
}

/* ── Empty State ── */
.bill-empty {
  text-align: center;
  padding: 3.5rem 1rem;
  color: var(--text-secondary);
}

.bill-empty svg {
  width: 48px;
  height: 48px;
  opacity: .3;
  margin-bottom: 1rem;
  margin-inline: auto;
}

.bill-empty h3 {
  margin: 0 0 .3rem;
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 600;
}

.bill-empty p {
  margin: 0;
  font-size: .85rem;
  max-width: 320px;
  margin-inline: auto;
}

/* ── Utility ── */
.bill-hidden { display: none !important; }

.bill-message {
  padding: .75rem 1rem;
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 500;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  animation: billFadeIn .25s ease;
}

.bill-message-success {
  background: rgba(56,161,105,.12);
  border: 1px solid rgba(56,161,105,.25);
  color: var(--green);
}

.bill-message-error {
  background: rgba(229,62,62,.12);
  border: 1px solid rgba(229,62,62,.25);
  color: var(--red);
}

.bill-message-info {
  background: rgba(26,115,232,.12);
  border: 1px solid rgba(26,115,232,.25);
  color: var(--text-primary);
}
.bill-message-info a { color: inherit; }

@keyframes billFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .bill-sidebar {
    transform: translateX(-100%);
  }
  .bill-sidebar.open {
    transform: translateX(0);
  }
  .bill-main {
    margin-left: 0;
  }
  .bill-sidebar-toggle {
    display: flex;
  }
  .bill-report-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .bill-content { padding: 1rem; }
  .bill-metrics { grid-template-columns: 1fr 1fr; }
  .bill-report-grid { grid-template-columns: 1fr; }
  .bill-invoice-head { flex-direction: column; gap: 1rem; }
  .bill-invoice-head-right { text-align: left; }
  .bill-invoice-addresses { grid-template-columns: 1fr; }
  .bill-invoice-totals { width: 100%; }
  .bill-form-row { grid-template-columns: 1fr; }
  .bill-form-row-3 { grid-template-columns: 1fr; }
  .bill-form-row-4 { grid-template-columns: 1fr 1fr; }
  .bill-products-grid { grid-template-columns: 1fr; }
  .bill-page-header h1 { font-size: 1.15rem; }
  .bill-metric-value { font-size: 1.3rem; }
}

@media (max-width: 480px) {
  .bill-metrics { grid-template-columns: 1fr; }
  .bill-search-input { max-width: 100%; }
  .bill-form-row-4 { grid-template-columns: 1fr; }
  .bill-login-card { padding: 1.75rem 1.25rem; }
  .bill-login-header svg.bill-login-logo { width: 40px; height: 40px; }
  .bill-login-header h1 { font-size: 1.1rem; }
}

/* ── Footer ── */
.bill-footer {
  border-top: 1px solid var(--border);
  padding: .85rem 1.5rem;
  font-size: .78rem;
  color: var(--text-muted);
  background: var(--bg-card);
  transition: background var(--transition-slow), border-color var(--transition-slow), color var(--transition-slow);
}

.bill-footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 100%;
}

.bill-footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color .15s;
}

.bill-footer a:hover {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .bill-footer-inner {
    flex-direction: column;
    gap: 4px;
    text-align: center;
  }
}

/* ── Print ── */
@media print {
  .bill-sidebar, .bill-topbar, .bill-sidebar-toggle, .bill-footer { display: none; }
  .bill-main { margin-left: 0; }
  .bill-content { padding: 0; }
}

/* ── Spinner ── */
.bill-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: bill-spin 0.7s linear infinite;
  vertical-align: middle;
}

@keyframes bill-spin {
  to { transform: rotate(360deg); }
}

/* ── Service list (client area) ── */
.bill-service-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.9rem;
  margin-bottom: 1.25rem;
}

.bill-service-stat {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 0.9rem 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.bill-service-stat .bill-service-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bill-service-stat .bill-service-icon svg {
  width: 18px;
  height: 18px;
}

.bill-service-stat .bill-service-stat-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.bill-service-stat .bill-service-stat-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.bill-service-list {
  display: grid;
  gap: 0.8rem;
}

.bill-service {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.bill-service:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.bill-service-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bill-service-icon svg {
  width: 22px;
  height: 22px;
}

.bill-service-info {
  flex: 1;
  min-width: 0;
}

.bill-service-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.bill-service-domain {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.bill-service-domain svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

.bill-service-meta {
  margin-top: 0.45rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  flex-wrap: wrap;
}

.bill-service-meta > span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--bg-card-alt);
  border: 1px solid var(--border-light);
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
}

.bill-service-meta > span svg {
  width: 12px;
  height: 12px;
  color: var(--text-tertiary);
}

.bill-service-side {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex-shrink: 0;
}

.bill-service-price {
  text-align: right;
}

.bill-service-price .amount {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
}

.bill-service-price .cycle {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

@media (max-width: 640px) {
  .bill-service {
    flex-wrap: wrap;
  }

  .bill-service-side {
    width: 100%;
    justify-content: space-between;
  }

  .bill-service-price {
    text-align: left;
  }
}