.invoice-page {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.invoice-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-width: 0;
}

.invoice-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 340px);
    gap: 1.5rem;
    align-items: start;
}

.invoice-layout__main,
.invoice-layout__aside {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 0;
}

.invoice-form-tabs-content {
    min-width: 0;
}

.invoice-recipient-dashboard {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.95fr);
    gap: 1rem;
    align-items: start;
}

.invoice-recipient-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    align-items: start;
}

.invoice-recipient-grid__type {
    grid-column: 1 / -1;
}

.invoice-recipient-grid__client,
.invoice-recipient-grid__fiscal {
    grid-column: 1 / -1;
}

.invoice-recipient-grid__student,
.invoice-recipient-grid__rectificativa {
    grid-column: 1 / -1;
}

@media (min-width: 768px) {
    .invoice-recipient-grid {
        grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
        gap: 1.5rem;
    }
    
    .invoice-recipient-grid__type,
    .invoice-recipient-grid__client,
    .invoice-recipient-grid__fiscal {
        grid-column: 1;
    }
    
    .invoice-recipient-grid__student,
    .invoice-recipient-grid__rectificativa {
        grid-column: 2;
        grid-row: 1 / span 4; /* span across rows */
        background: var(--surface-muted, #f8fafc);
        border: 1px solid var(--border-subtle, #e4e7ec);
        border-radius: 12px;
        padding: 1.25rem;
        transition: opacity 0.3s ease, transform 0.3s ease;
        animation: slideInRight 0.3s ease forwards;
    }

    @keyframes slideInRight {
        from {
            opacity: 0;
            transform: translateX(10px);
        }
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }
}

.invoice-recipient-grid__guidance {
    grid-column: 1 / -1;
}

.invoice-recipient-note {
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-muted, #667085);
}

.invoice-associated-students-card {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    min-width: 0;
}

.invoice-associated-students-card .form-group-premium {
    min-width: 0;
}

.invoice-associated-students-card .ts-wrapper,
.invoice-associated-students-card .ts-control {
    min-width: 0;
}

.invoice-layout__aside {
    position: sticky;
    top: 96px;
}

.form-section {
    border: 1px solid var(--border-subtle, #e4e7ec);
    border-radius: 16px;
    padding: 1.25rem;
    background: var(--surface-elevated, #fff);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-section__header,
.form-section > header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.form-section__header h2,
.form-section > header h2 {
    margin: 0;
    font-size: 1.05rem;
}

.form-section__header p,
.form-section > header p {
    margin: 0.35rem 0 0;
    color: var(--text-muted, #667085);
    font-size: 0.9rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.form-grid label,
.invoice-summary label,
.invoice-discount-panel label,
.invoice-pdf-block label,
.invoice-cancel-form label {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: 0.9rem;
    color: var(--text-muted, #475467);
}

.form-grid input,
.form-grid select,
.form-grid textarea,
.invoice-summary input,
.invoice-summary select,
.invoice-discount-panel input,
.invoice-discount-panel textarea,
.invoice-pdf-block textarea,
.invoice-pdf-block select,
.invoice-cancel-form textarea {
    width: 100%;
}

.invoice-inline-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.35rem;
}

.invoice-inline-actions--end {
    justify-content: flex-end;
}

.invoice-lines {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.invoice-table-wrapper {
    overflow-x: auto;
}

.invoice-lines__table,
.invoice-linked-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.invoice-lines__table th,
.invoice-lines__table td,
.invoice-linked-table th,
.invoice-linked-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-subtle, #e4e7ec);
    vertical-align: top;
}

.invoice-lines__table thead th,
.invoice-linked-table thead th {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted, #98a2b3);
    background: var(--surface-muted, #f8fafc);
}

.invoice-lines__table input {
    width: 100%;
    min-height: 42px;
}

.invoice-line__subtotal {
    display: block;
    font-size: 0.95rem;
    color: var(--text-strong, #101828);
}

.invoice-line__meta {
    display: block;
    margin-top: 0.2rem;
    font-size: 0.78rem;
    color: var(--text-muted, #667085);
}

.invoice-pdf-blocks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.invoice-pdf-block {
    border: 1px dashed var(--border-strong, #d0d5dd);
    border-radius: 14px;
    padding: 1rem;
    background: rgba(69, 114, 246, 0.03);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.invoice-summary,
.invoice-discount-panel,
.invoice-detail-card {
    border: 1px solid var(--border-subtle, #e4e7ec);
    border-radius: 16px;
    padding: 1.25rem;
    background: var(--surface-elevated, #fff);
}

.invoice-summary header,
.invoice-discount-panel header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.invoice-summary header h3,
.invoice-discount-panel header h3 {
    margin: 0;
    font-size: 1rem;
}

.invoice-summary header p,
.invoice-discount-panel header p {
    margin: 0.3rem 0 0;
    color: var(--text-muted, #667085);
    font-size: 0.85rem;
}

.invoice-summary dl {
    margin: 0 0 1rem;
    padding: 0;
}

.invoice-summary dl > div {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.45rem;
    color: var(--text-muted, #475467);
}

.invoice-summary__total {
    padding-top: 0.6rem;
    border-top: 1px solid var(--border-subtle, #e4e7ec);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-strong, #101828);
}

.invoice-summary__actions {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.invoice-summary__actions .btn {
    width: 100%;
    justify-content: center;
}

.invoice-summary__manual-discount {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-subtle, #e4e7ec);
}

.invoice-discount-panel {
    background: rgba(69, 114, 246, 0.04);
}

.invoice-discount-panel__helper {
    font-size: 0.85rem;
    color: var(--text-muted, #475467);
    margin: 0;
}

.invoice-secondary-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.invoice-detail-card--full {
    grid-column: 1 / -1;
}

.invoice-detail-card--accent {
    background: linear-gradient(135deg, #fffbeb 0%, #fff7d6 100%);
    border-color: #f3d98c;
}

.invoice-detail-card--danger {
    background: #fff7f7;
    border-color: #f2b8b8;
}

.invoice-detail-card .general-card__header {
    margin-bottom: 1rem;
}

.invoice-detail-card__label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted, #98a2b3);
}

.invoice-detail-card__content {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.invoice-detail-card__intro {
    margin: 0;
    color: var(--text-muted, #667085);
}

.invoice-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.invoice-tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.invoice-tag-list li {
    border-radius: 999px;
    padding: 0.4rem 0.75rem;
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-muted, #475467);
    font-size: 0.85rem;
}

.invoice-linked-table td a {
    font-weight: 600;
}

.invoice-linked-table td small {
    display: block;
    margin-top: 0.2rem;
    color: var(--text-muted, #667085);
}

.invoice-history-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.invoice-history-item {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 0.85rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid var(--border-subtle, #e4e7ec);
}

.invoice-history-item:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.invoice-history-item__icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(69, 114, 246, 0.08);
    color: var(--primary-600, #4572f6);
}

.invoice-history-item__body {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.invoice-history-item__body p {
    margin: 0;
    color: var(--text-muted, #667085);
}

.invoice-history-item__header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
}

.invoice-history-item__header span {
    font-size: 0.8rem;
    color: var(--text-muted, #98a2b3);
    white-space: nowrap;
}

.invoice-hero-actions__form {
    display: inline-flex;
}

.invoice-empty {
    color: var(--text-muted, #667085);
}

@media (max-width: 1200px) {
    .invoice-layout {
        grid-template-columns: 1fr;
    }

    .invoice-layout__aside {
        position: static;
    }

    .invoice-recipient-dashboard {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .invoice-secondary-grid {
        grid-template-columns: 1fr;
    }

    .invoice-detail-card--full {
        grid-column: auto;
    }

    .invoice-recipient-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .invoice-history-item__header,
    .form-section__header,
    .form-section > header,
    .invoice-summary header,
    .invoice-discount-panel header {
        flex-direction: column;
        align-items: stretch;
    }

    .invoice-pdf-blocks,
    .form-grid,
    .invoice-detail-grid {
        grid-template-columns: 1fr;
    }

    .invoice-inline-actions {
        flex-direction: column;
    }

    .invoice-inline-actions .btn {
        width: 100%;
    }
}