/* ========================================
   GestãoBLZ — Billing Modal (Faturamento do Cliente)
   Modern, responsive, theme-aware
   ======================================== */

/* ── Animations ─────────────────────────── */

@keyframes billingOverlayIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes billingModalIn {
    from { opacity: 0; transform: translateY(12px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes billingCheckIn {
    from { transform: scale(0); }
    to   { transform: scale(1); }
}

@keyframes billingPulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: .6; }
}

@keyframes billingSpin {
    to { transform: rotate(360deg); }
}

/* ── Overlay ────────────────────────────── */

.billing-overlay {
    position: fixed;
    inset: 0;
    z-index: 999999998;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: billingOverlayIn 0.25s ease-out;
}

/* ── Modal Container ────────────────────── */

.billing-modal {
    width: min(960px, 100%);
    max-height: min(90vh, 880px);
    background: var(--theme-card-bg, #ffffff);
    color: var(--theme-text-primary, #111827);
    border-radius: 16px;
    box-shadow:
        0 0 0 1px rgba(0, 0, 0, 0.04),
        0 24px 64px -8px rgba(15, 23, 42, 0.22);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: billingModalIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── Header ─────────────────────────────── */

.billing-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--theme-border-color, #e5e7eb);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-shrink: 0;
}

.billing-header-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.billing-title {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--theme-text-primary, #111827);
    display: flex;
    align-items: center;
    gap: 10px;
    line-height: 1.3;
}

.billing-title-icon {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary-color, #3b82f6), var(--primary-dark, #1e40af));
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.billing-subtitle {
    margin: 0;
    font-size: 0.85rem;
    color: var(--theme-text-secondary, #6b7280);
    font-weight: 500;
    padding-left: 42px; /* align with title text */
}

.billing-close {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 10px;
    background: var(--bg-hover, #f3f4f6);
    color: var(--theme-text-secondary, #6b7280);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
    flex-shrink: 0;
    font-size: 0.9rem;
}

.billing-close:hover {
    background: var(--danger-color, #ef4444);
    color: #ffffff;
    transform: scale(1.05);
}

/* ── Body ───────────────────────────────── */

.billing-body {
    padding: 20px 24px;
    overflow-y: auto;
    overflow-x: hidden;
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.7fr);
    gap: 20px;
    flex: 1;
    -webkit-overflow-scrolling: touch;
}

.billing-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
}

/* ── Metrics (Summary Cards) ────────────── */

.billing-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.billing-metric {
    border-radius: 12px;
    background: var(--bg-secondary, #f9fafb);
    border: 1px solid var(--theme-border-color, #e5e7eb);
    padding: 12px 14px;
    transition: border-color 0.2s ease;
}

.billing-metric:last-child {
    border-color: rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.3);
    background: rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.05);
}

.billing-metric-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--theme-text-secondary, #6b7280);
    margin-bottom: 4px;
}

.billing-metric-value {
    display: block;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--theme-text-primary, #111827);
}

.billing-metric:last-child .billing-metric-value {
    color: var(--primary-color, #3b82f6);
}

/* ── Panel (generic section card) ───────── */

.billing-panel {
    border-radius: 12px;
    border: 1px solid var(--theme-border-color, #e5e7eb);
    background: var(--bg-secondary, #f9fafb);
    padding: 16px;
}

.billing-panel-title {
    margin: 0 0 12px;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--theme-text-secondary, #6b7280);
    display: flex;
    align-items: center;
    gap: 8px;
}

.billing-panel-title i {
    font-size: 0.78rem;
    opacity: 0.7;
}

/* ── Appointment Items ──────────────────── */

.billing-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.billing-item {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    padding: 12px 14px;
    border-radius: 10px;
    background: var(--theme-card-bg, #ffffff);
    border: 1px solid var(--theme-border-color, #e5e7eb);
    transition: all 0.15s ease;
}

.billing-item:hover {
    border-color: rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.25);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.billing-item.is-success {
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(16, 185, 129, 0.04);
}

.billing-item.is-error {
    border-color: rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.04);
}

/* Custom Checkbox */
.billing-check {
    position: relative;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.billing-check input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 20px;
    height: 20px;
    margin: 0;
    cursor: pointer;
    z-index: 1;
}

.billing-check-mark {
    position: absolute;
    inset: 0;
    border: 2px solid var(--theme-border-color, #d1d5db);
    border-radius: 6px;
    background: var(--theme-card-bg, #ffffff);
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.billing-check-mark::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.6rem;
    color: #ffffff;
    transform: scale(0);
    transition: transform 0.15s ease;
}

.billing-check input:checked + .billing-check-mark {
    background: var(--primary-color, #3b82f6);
    border-color: var(--primary-color, #3b82f6);
}

.billing-check input:checked + .billing-check-mark::after {
    transform: scale(1);
    animation: billingCheckIn 0.2s ease;
}

.billing-check input:disabled + .billing-check-mark {
    opacity: 0.5;
    cursor: not-allowed;
}

.billing-item-body {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.billing-item-service {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--theme-text-primary, #111827);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.billing-item-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.78rem;
    color: var(--theme-text-secondary, #6b7280);
}

.billing-item-meta span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.billing-item-meta i {
    font-size: 0.7rem;
    opacity: 0.6;
}

/* Badges */
.billing-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 2px;
}

.billing-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 600;
    background: var(--bg-hover, #f3f4f6);
    color: var(--theme-text-secondary, #6b7280);
    border: 1px solid var(--theme-border-color, #e5e7eb);
}

.billing-badge i {
    font-size: 0.62rem;
}

.billing-badge.is-info {
    background: rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.08);
    color: var(--primary-color, #3b82f6);
    border-color: rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.2);
}

.billing-badge.is-success {
    background: rgba(16, 185, 129, 0.08);
    color: var(--success-color, #10b981);
    border-color: rgba(16, 185, 129, 0.2);
}

.billing-badge.is-warn {
    background: rgba(239, 68, 68, 0.08);
    color: var(--danger-color, #ef4444);
    border-color: rgba(239, 68, 68, 0.2);
}

.billing-badge.is-loading i {
    animation: billingSpin 0.8s linear infinite;
}

/* Item values (right side) */
.billing-item-values {
    text-align: right;
    min-width: 100px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.billing-item-val-row {
    display: flex;
    flex-direction: column;
}

.billing-item-val-label {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--theme-text-secondary, #6b7280);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.billing-item-val-amount {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--theme-text-primary, #111827);
}

/* ── Payment Quick-Fill Chips ───────────── */

.billing-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.billing-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid var(--theme-border-color, #d1d5db);
    background: var(--theme-card-bg, #ffffff);
    color: var(--theme-text-primary, #111827);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.billing-chip i {
    font-size: 0.72rem;
    opacity: 0.65;
}

.billing-chip:hover:not(:disabled) {
    border-color: var(--primary-color, #3b82f6);
    color: var(--primary-color, #3b82f6);
    background: rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.06);
}

.billing-chip.is-primary {
    border-color: var(--primary-color, #3b82f6);
    background: rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.1);
    color: var(--primary-color, #3b82f6);
}

.billing-chip.is-primary:hover:not(:disabled) {
    background: rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.18);
}

.billing-chip:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

/* ── Payment Rows ───────────────────────── */

.billing-payment-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.billing-pay-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 120px 32px;
    gap: 8px;
    align-items: center;
}

.billing-pay-row select,
.billing-pay-row input[type="number"] {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--theme-border-color, #d1d5db);
    border-radius: 8px;
    background: var(--theme-card-bg, #ffffff);
    color: var(--theme-text-primary, #111827);
    font-size: 0.85rem;
    font-weight: 500;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    -moz-appearance: textfield;
}

.billing-pay-row select:focus,
.billing-pay-row input[type="number"]:focus {
    border-color: var(--primary-color, #3b82f6);
    box-shadow: 0 0 0 3px rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.12);
}

.billing-pay-row input[type="number"]::-webkit-inner-spin-button,
.billing-pay-row input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.billing-pay-remove {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--theme-text-secondary, #9ca3af);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: 0.78rem;
}

.billing-pay-remove:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.08);
    color: var(--danger-color, #ef4444);
}

.billing-pay-remove:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Payment hint text */
.billing-pay-hint {
    margin-top: 8px;
    font-size: 0.78rem;
    color: var(--theme-text-secondary, #6b7280);
    display: flex;
    align-items: center;
    gap: 6px;
}

.billing-pay-hint i {
    font-size: 0.72rem;
}

.billing-pay-hint.is-ok {
    color: var(--success-color, #10b981);
}

.billing-pay-hint.is-warn {
    color: var(--warning-color, #f59e0b);
}

/* Add payment button */
.billing-add-pay {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px;
    margin-top: 4px;
    border: 1.5px dashed var(--theme-border-color, #d1d5db);
    border-radius: 10px;
    background: transparent;
    color: var(--theme-text-secondary, #6b7280);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.billing-add-pay:hover:not(:disabled) {
    border-color: var(--primary-color, #3b82f6);
    color: var(--primary-color, #3b82f6);
    background: rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.04);
}

.billing-add-pay:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.billing-add-pay i {
    font-size: 0.7rem;
}

/* ── Totals / Summary ───────────────────── */

.billing-totals {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.billing-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--theme-text-primary, #111827);
}

.billing-total-row span {
    color: var(--theme-text-secondary, #6b7280);
    font-weight: 500;
}

.billing-total-row strong {
    font-weight: 700;
    font-size: 0.9rem;
}

.billing-total-divider {
    height: 1px;
    background: var(--theme-border-color, #e5e7eb);
    margin: 4px 0;
}

.billing-total-result {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
}

.billing-total-result.is-ok {
    background: rgba(16, 185, 129, 0.08);
    color: var(--success-color, #10b981);
}

.billing-total-result.is-ok .billing-check-icon {
    animation: billingCheckIn 0.3s ease;
}

.billing-total-result.is-warn {
    background: rgba(245, 158, 11, 0.08);
    color: var(--warning-color, #f59e0b);
}

/* ── Allocation Preview (Collapsible) ───── */

.billing-alloc-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0;
    border: none;
    background: none;
    color: var(--theme-text-secondary, #6b7280);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    cursor: pointer;
    margin-bottom: 0;
    transition: color 0.15s ease;
}

.billing-alloc-toggle:hover {
    color: var(--theme-text-primary, #111827);
}

.billing-alloc-toggle i {
    font-size: 0.7rem;
    transition: transform 0.2s ease;
}

.billing-alloc-toggle.is-open i {
    transform: rotate(180deg);
}

.billing-alloc-content {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.25s ease, opacity 0.2s ease, margin 0.25s ease;
    margin-top: 0;
}

.billing-alloc-content.is-open {
    max-height: 500px;
    opacity: 1;
    margin-top: 12px;
}

.billing-alloc-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.billing-alloc-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px 12px;
    border-radius: 8px;
    background: var(--theme-card-bg, #ffffff);
    border: 1px solid var(--theme-border-color, #e5e7eb);
    font-size: 0.8rem;
}

.billing-alloc-item strong {
    color: var(--theme-text-primary, #111827);
    font-weight: 600;
}

.billing-alloc-item span {
    color: var(--theme-text-secondary, #6b7280);
    font-size: 0.75rem;
}

.billing-alloc-warn {
    color: var(--warning-color, #f59e0b);
    font-size: 0.8rem;
    padding: 8px 0;
}

/* ── "No payment" state ─────────────────── */

.billing-empty-pay {
    text-align: center;
    padding: 12px;
    font-size: 0.82rem;
    color: var(--theme-text-secondary, #6b7280);
}

/* ── Footer ─────────────────────────────── */

.billing-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--theme-border-color, #e5e7eb);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    flex-shrink: 0;
    background: var(--theme-card-bg, #ffffff);
}

/* Progress */
.billing-progress {
    display: none;
    width: 100%;
    font-size: 0.82rem;
    color: var(--theme-text-secondary, #6b7280);
}

.billing-progress-bar {
    height: 6px;
    margin-top: 8px;
    border-radius: 999px;
    overflow: hidden;
    background: var(--theme-border-color, #e5e7eb);
}

.billing-progress-fill {
    height: 100%;
    width: 0%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary-color, #3b82f6), var(--primary-light, #60a5fa));
    transition: width 0.25s ease;
}

/* Action buttons */
.billing-actions {
    display: flex;
    gap: 10px;
    margin-left: auto;
}

.billing-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    border: 1px solid var(--theme-border-color, #d1d5db);
    background: var(--theme-card-bg, #ffffff);
    color: var(--theme-text-primary, #111827);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.billing-btn:hover:not(:disabled) {
    background: var(--bg-hover, #f3f4f6);
}

.billing-btn.is-primary {
    border-color: transparent;
    background: linear-gradient(135deg, var(--primary-color, #3b82f6), var(--primary-dark, #1e40af));
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.3);
}

.billing-btn.is-primary:hover:not(:disabled) {
    box-shadow: 0 4px 16px rgba(var(--primary-r, 59), var(--primary-g, 130), var(--primary-b, 246), 0.4);
    transform: translateY(-1px);
}

.billing-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ── Responsive: Tablet (≤820px) ────────── */

@media (max-width: 820px) {
    .billing-body {
        grid-template-columns: 1fr;
        padding: 16px 20px;
    }

    .billing-metrics {
        grid-template-columns: repeat(3, 1fr);
    }

    .billing-item {
        grid-template-columns: 24px minmax(0, 1fr);
    }

    .billing-item-values {
        grid-column: 2;
        text-align: left;
        flex-direction: row;
        gap: 16px;
        min-width: 0;
    }

    .billing-item-val-row {
        flex-direction: row;
        gap: 6px;
        align-items: baseline;
    }

    .billing-actions {
        width: 100%;
        margin-left: 0;
    }

    .billing-actions .billing-btn {
        flex: 1;
    }
}

/* ── Responsive: Mobile (≤600px) ────────── */

@media (max-width: 600px) {
    .billing-overlay {
        padding: 0;
        align-items: flex-end;
    }

    .billing-modal {
        width: 100%;
        max-height: 100vh;
        max-height: 100dvh;
        height: 100vh;
        height: 100dvh;
        border-radius: 0;
        box-shadow: none;
        animation: none;
    }

    .billing-header {
        padding: 14px 16px;
        position: sticky;
        top: 0;
        z-index: 2;
        background: var(--theme-card-bg, #ffffff);
    }

    .billing-subtitle {
        padding-left: 0;
    }

    .billing-title-icon {
        width: 28px;
        height: 28px;
        border-radius: 8px;
        font-size: 0.75rem;
    }

    .billing-title {
        font-size: 1rem;
    }

    .billing-body {
        padding: 14px 16px;
        gap: 14px;
    }

    .billing-metrics {
        grid-template-columns: 1fr 1fr;
    }

    .billing-metric:first-child {
        grid-column: span 2;
    }

    .billing-panel {
        padding: 14px;
    }

    .billing-chips {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .billing-chips::-webkit-scrollbar {
        display: none;
    }

    .billing-pay-row {
        grid-template-columns: minmax(0, 1fr) 100px 32px;
    }

    .billing-footer {
        padding: 14px 16px;
        position: sticky;
        bottom: 0;
        z-index: 2;
        background: var(--theme-card-bg, #ffffff);
        box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
    }

    .billing-btn {
        padding: 12px 16px;
        font-size: 0.82rem;
        min-height: 44px;
    }

    .billing-chip {
        padding: 10px 14px;
        min-height: 44px;
    }

    .billing-close {
        min-width: 44px;
        min-height: 44px;
    }

    .billing-check {
        width: 22px;
        height: 22px;
    }

    .billing-check input[type="checkbox"] {
        width: 22px;
        height: 22px;
    }
}

/* ── Very small screens ─────────────────── */

@media (max-width: 380px) {
    .billing-metrics {
        grid-template-columns: 1fr;
    }

    .billing-metric:first-child {
        grid-column: span 1;
    }

    .billing-pay-row {
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .billing-pay-row select {
        grid-column: 1;
    }

    .billing-pay-row input[type="number"] {
        grid-column: 1;
    }

    .billing-pay-remove {
        justify-self: end;
    }
}