/* Sidebar y Layout Principal */
.app-container {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 260px;
    background: #ffffff;
    border-right: 1px solid var(--surface-border);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--surface-border);
}

.sidebar-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(to right, #4f46e5, #0ea5e9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-nav {
    padding: 1.5rem 1rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    font-weight: 500;
}

.nav-item:hover, .nav-item.active {
    background: rgba(79, 70, 229, 0.08);
    color: var(--primary);
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--surface-border);
}

.user-info {
    margin-bottom: 1rem;
    color: var(--text-main);
    font-weight: 600;
}

.btn-logout {
    width: 100%;
    padding: 0.75rem;
    background: #fff;
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.btn-logout:hover {
    background: rgba(239, 68, 68, 0.05);
}

/* Main Content */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background: var(--bg-color);
}

.topbar {
    padding: 1.5rem 2rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--surface-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 600;
}

.content-wrapper {
    padding: 2rem;
}

/* Dashboard KPIs */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    padding: 1.5rem;
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: var(--transition);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.kpi-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    border-color: rgba(79, 70, 229, 0.3);
}

.kpi-title {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.kpi-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-main);
}

.kpi-value.success { color: var(--success); }
.kpi-value.warning { color: #d97706; }
.kpi-value.primary { color: var(--primary); }

/* Tables */
.table-container {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.table-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--surface-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--surface-border);
}

th {
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    background: #f1f5f9;
}

td {
    font-size: 0.95rem;
    color: var(--text-main);
}

tbody tr:hover {
    background: #f8fafc;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}

.badge.pagada { background: rgba(16, 185, 129, 0.1); color: #059669; border: 1px solid rgba(16, 185, 129, 0.2); }
.badge.pendiente { background: rgba(245, 158, 11, 0.1); color: #d97706; border: 1px solid rgba(245, 158, 11, 0.2); }
.badge.anulada { background: rgba(239, 68, 68, 0.1); color: #dc2626; border: 1px solid rgba(239, 68, 68, 0.2); }

/* Toolbar y buscador */
.toolbar {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.search-form {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
}

.search-wrapper {
    position: relative;
    flex: 1;
}

.search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-input {
    width: 100%;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: var(--text-main);
    padding: 0.65rem 1rem 0.65rem 2.25rem;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.result-count {
    color: var(--text-muted);
    font-size: 0.875rem;
    white-space: nowrap;
}

/* Botones adicionales */
.btn-secondary {
    display: inline-block;
    padding: 0.65rem 1.25rem;
    background: #fff;
    color: var(--text-muted);
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-secondary:hover {
    border-color: #94a3b8;
    color: var(--text-main);
}

.btn-sm {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    background: rgba(79, 70, 229, 0.08);
    color: var(--primary);
    border: 1px solid rgba(79, 70, 229, 0.2);
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-sm:hover {
    background: var(--primary);
    color: #fff;
}

.btn-sm.btn-danger {
    background: rgba(239, 68, 68, 0.08);
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.2);
}

.btn-sm.btn-danger:hover {
    background: var(--danger);
    color: #fff;
}

/* Alertas */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 8px;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.alert-success {
    background: rgba(16, 185, 129, 0.08);
    border-left: 4px solid var(--success);
    color: #065f46;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.08);
    border-left: 4px solid var(--danger);
    color: #991b1b;
}

/* Utilidades de texto */
.text-success { color: var(--success); }
.text-warning { color: #d97706; }
.link-primary {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.link-primary:hover { text-decoration: underline; }

.empty-tag {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.85rem;
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem !important;
}

/* Card de página (formularios) */
.page-card {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

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

.page-card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

/* Paginación */
.pagination-wrapper {
    margin-top: 1.25rem;
}

.pagination-nav {
    display: flex;
    gap: 0.5rem;
}

.page-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #fff;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.page-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.page-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* Textarea como form-input */
textarea.form-input {
    resize: vertical;
    font-family: inherit;
}

/* ─── KPI cards mejoradas ─────────────────────── */
.kpi-card {
    position: relative;
    overflow: hidden;
}

.kpi-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: #f1f5f9;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.kpi-icon--success { background: rgba(16,185,129,0.12); color: var(--success); }
.kpi-icon--warning { background: rgba(245,158,11,0.12); color: #d97706; }
.kpi-icon--neutral { background: rgba(79,70,229,0.08); color: var(--primary); }

.kpi-sub {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ─── Barra de recaudo ───────────────────────── */
.recaudo-bar-card {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.recaudo-bar-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.recaudo-bar-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.recaudo-bar-pct {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary);
}

.recaudo-bar-track {
    width: 100%;
    height: 8px;
    background: #e2e8f0;
    border-radius: 9999px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.recaudo-bar-fill {
    height: 100%;
    border-radius: 9999px;
    background: linear-gradient(to right, #4f46e5, #10b981);
    transition: width 1s ease;
}

.recaudo-bar-footer {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ─── Grid 2 columnas del dashboard ─────────── */
.dash-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

/* ─── Panel de filtros (facturas) ────────────── */
.filter-panel {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.25rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.filter-panel-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.filter-panel-fields {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}

.filter-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.filter-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.filter-input-wrap {
    position: relative;
}

.filter-search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.filter-search-input {
    width: 100%;
    background: #f8fafc;
    border: 1px solid #cbd5e1;
    color: var(--text-main);
    padding: 0.6rem 0.9rem 0.6rem 2.1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: var(--transition);
    font-family: inherit;
    appearance: none;
}

.filter-search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: #fff;
}

.filter-select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 2rem;
}

.filter-panel-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-top: 1px solid var(--surface-border);
    padding-top: 1rem;
}

.filter-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.25rem;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.filter-btn-clear {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1rem;
    background: #fff;
    color: var(--text-muted);
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn-clear:hover {
    border-color: var(--danger);
    color: var(--danger);
}

/* ─── Toolbar de clientes ────────────────────── */
.page-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.filter-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
}

.filter-search-box {
    position: relative;
    flex: 1;
    max-width: 480px;
}

.filter-clear-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 2px;
    border-radius: 4px;
    transition: var(--transition);
}

.filter-clear-btn:hover { color: var(--danger); }

.page-toolbar-meta {
    display: flex;
    align-items: center;
}

/* ─── Avatares de clientes ───────────────────── */
.client-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.invoice-count-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-main);
    text-decoration: none;
    transition: var(--transition);
}

.invoice-count-link:hover { color: var(--primary); }

.invoice-count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    border-radius: 9999px;
    background: rgba(79,70,229,0.1);
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0 6px;
}