/* ===== VARIABLES CSS ===== */
:root {
    /* Colores principales */
    --primary-50: #f0f9ff;
    --primary-100: #e0f2fe;
    --primary-200: #bae6fd;
    --primary-300: #7dd3fc;
    --primary-400: #38bdf8;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-800: #075985;
    --primary-900: #0c4a6e;
    
    /* Colores neutros */
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e5e5;
    --neutral-300: #d4d4d4;
    --neutral-400: #a3a3a3;
    --neutral-500: #737373;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;
    
    /* Colores semánticos */
    --success-50: #f0fdf4;
    --success-500: #22c55e;
    --success-600: #16a34a;
    --success-700: #15803d;
    
    --danger-50: #fef2f2;
    --danger-500: #ef4444;
    --danger-600: #dc2626;
    --danger-700: #b91c1c;
    
    --warning-50: #fffbeb;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    --warning-700: #b45309;
    
    /* Sombras */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Bordes */
    --border-radius-sm: 6px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* Espaciado */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
}

/* ===== CLASES DE FUENTE GENÉRICAS ===== */
.font-regular {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
}

.font-medium {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 500;
    font-style: normal;
}

.font-semibold {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 600;
    font-style: normal;
}

.font-bold {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 700;
    font-style: normal;
}

.font-extrabold {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 800;
    font-style: normal;
}

.font-light {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 300;
    font-style: normal;
}

/* ===== RESET Y ESTILOS BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    line-height: 1.6;
    color: var(--neutral-900);
    background: var(--neutral-50);
    font-size: 14px;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== LAYOUT PRINCIPAL ===== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding-top: var(--space-20);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ===== NAVEGACIÓN SUPERIOR ===== */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--neutral-200);
    z-index: 1000;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.brand-icon {
    width: 32px;
    height: 32px;
    background: var(--primary-500);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
}

.brand-text {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 700;
    font-size: 18px;
    color: var(--neutral-900);
    letter-spacing: -0.025em;
}

.nav-actions {
    display: flex;
    gap: var(--space-3);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--neutral-100);
    border: 1px solid var(--neutral-200);
    border-radius: var(--border-radius-md);
    color: var(--neutral-700);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

.nav-btn:hover {
    background: var(--neutral-200);
    border-color: var(--neutral-300);
    color: var(--neutral-900);
}

/* ===== HEADER DE PÁGINA ===== */
.page-header {
    text-align: center;
    margin-bottom: var(--space-16);
    padding: var(--space-12) 0;
}

.header-content h1 {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 800;
    font-size: 48px;
    line-height: 1.1;
    color: var(--neutral-900);
    margin-bottom: var(--space-4);
    letter-spacing: -0.025em;
}

.header-content p {
    font-size: 18px;
    color: var(--neutral-600);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 400;
    line-height: 1.6;
}

/* ===== SECCIÓN DE UPLOAD ===== */
.upload-section {
    margin-bottom: var(--space-16);
}

.periodo-filters {
    background: white;
    padding: var(--space-6);
    border: 1px solid var(--neutral-200);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.periodo-filters:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-200);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    position: relative;
}

.filter-group::after {
    content: '⌄';
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--neutral-400);
    font-size: 18px;
    font-weight: bold;
    pointer-events: none;
    z-index: 1;
    margin-left: -20px;
}

.filter-group label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 600;
    color: var(--neutral-700);
    font-size: 14px;
    white-space: nowrap;
}

.filter-group select {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--neutral-200);
    border-radius: var(--border-radius-md);
    background: white;
    color: var(--neutral-900);
    font-size: 14px;
    font-family: inherit;
    min-width: 300px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.filter-group select:hover {
    border-color: var(--primary-300);
    background: var(--neutral-50);
}

.filter-group select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
    background: white;
}

/* Estilos para los optgroups */
.filter-group select optgroup {
    font-weight: 700;
    color: var(--primary-700);
    background: var(--primary-50);
    padding: var(--space-2) 0;
    font-size: 13px;
}

.filter-group select optgroup option {
    font-weight: 500;
    color: var(--neutral-900);
    background: white;
    padding: var(--space-2) var(--space-4);
    font-size: 14px;
}

.filter-group select optgroup option:hover {
    background: var(--primary-50);
}

.periodo-info {
    padding: var(--space-3) var(--space-4);
    background: var(--neutral-50);
    border-radius: var(--border-radius-md);
    color: var(--neutral-600);
    font-size: 14px;
    font-style: italic;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    border: 1px solid var(--neutral-200);
    min-width: 200px;
    justify-content: center;
}

.periodo-info .periodo-tipo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--border-radius-sm);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid transparent;
}

.periodo-info .periodo-tipo.estandar {
    background: var(--primary-100);
    color: var(--primary-700);
    border-color: var(--primary-200);
}

.periodo-info .periodo-tipo.monotributo {
    background: var(--success-100);
    color: var(--success-700);
    border-color: var(--success-200);
}

.upload-container {
    background: white;
    border: 2px dashed var(--neutral-300);
    border-radius: var(--border-radius-xl);
    padding: var(--space-16);
    text-align: center;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.upload-container:hover {
    border-color: var(--primary-400);
    box-shadow: var(--shadow-md);
}

.upload-content {
    max-width: 500px;
    margin: 0 auto;
}

.upload-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    color: var(--primary-500);
    font-size: 32px;
}

.upload-content h3 {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 700;
    font-size: 24px;
    margin-bottom: var(--space-3);
    color: var(--neutral-900);
    letter-spacing: -0.025em;
}

.upload-content p {
    color: var(--neutral-600);
    margin-bottom: var(--space-8);
    font-size: 16px;
    line-height: 1.6;
}

.upload-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    background: var(--primary-500);
    color: white;
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    font-family: inherit;
}

.upload-btn:hover {
    background: var(--primary-600);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.security-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-16);
    padding: var(--space-6);
    background: var(--neutral-50);
    color: var(--neutral-600);
    font-size: 14px;
    line-height: 1.5;
    width: 100%;
    text-align: center;
}

.security-notice i {
    color: var(--success-600);
    font-size: 16px;
    flex-shrink: 0;
}

.security-notice span {
    font-weight: 500;
}

/* ===== SECCIÓN DE PROGRESO ===== */
.progress-section {
    margin-bottom: var(--space-16);
}

.progress-container {
    background: white;
    padding: var(--space-8);
    border: 1px solid var(--neutral-200);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.progress-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.progress-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-500);
    font-size: 20px;
}

.progress-info h3 {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 700;
    font-size: 20px;
    color: var(--neutral-900);
    margin-bottom: var(--space-1);
}

.progress-info p {
    color: var(--neutral-600);
    font-size: 14px;
}

.progress-stats {
    display: flex;
    gap: var(--space-8);
    margin-bottom: var(--space-6);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.stat-label {
    font-size: 12px;
    color: var(--neutral-500);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-600);
    font-family: "Host Grotesk", sans-serif;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--neutral-200);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-500);
    width: 0%;
    transition: width 0.3s ease;
    border-radius: var(--border-radius-sm);
}

/* ===== SECCIÓN DE RESULTADOS ===== */
.results-section {
    margin-bottom: var(--space-16);
}

.results-header {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    /*border-bottom: 1px solid var(--neutral-200);*/
}

.header-left h2 {
    font-family: "Host Grotesk", sans-serif;
    font-optical-sizing: auto;
    font-weight: 700;
    font-size: 32px;
    color: var(--neutral-900);
    margin-bottom: var(--space-2);
    letter-spacing: -0.025em;
}

.header-left p {
    color: var(--neutral-600);
    font-size: 16px;
}

.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.summary-card {
    background: white;
    padding: var(--space-6);
    border: 1px solid var(--neutral-200);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.summary-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.summary-card.neto {
    border-left: 4px solid var(--primary-500);
    grid-column: 1 / -1;
    grid-row: 1;
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--primary-50) 0%, white 100%);
    border: 2px solid var(--primary-200);
}

.summary-card.debito {
    border-left: 4px solid var(--success-500);
    grid-column: 1;
    grid-row: 2;
}

.summary-card.credito {
    border-left: 4px solid var(--danger-500);
    grid-column: 2;
    grid-row: 2;
}



.summary-card.neto .card-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-100);
    color: var(--primary-700);
    font-size: 24px;
}

.summary-card.neto .card-amount {
    font-size: 48px;
    margin-bottom: var(--space-4);
}

.summary-card.neto .card-status {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-700);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.card-icon {
    width: 40px;
    height: 40px;
    background: var(--neutral-100);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-600);
    font-size: 16px;
}

.summary-card.debito .card-icon {
    background: var(--success-50);
    color: var(--success-600);
}

.summary-card.credito .card-icon {
    background: var(--danger-50);
    color: var(--danger-600);
}

.summary-card.neto .card-icon {
    background: var(--primary-50);
    color: var(--primary-600);
}

.card-badge {
    font-size: 11px;
    font-weight: 700;
    color: var(--neutral-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--space-1) var(--space-3);
    background: var(--neutral-100);
    border-radius: var(--border-radius-sm);
}

.card-content {
    text-align: center;
}

.card-amount {
    font-size: 32px;
    font-weight: 700;
    color: var(--neutral-900);
    margin-bottom: var(--space-2);
    font-family: "Host Grotesk", sans-serif;
}

.card-count, .card-status {
    font-size: 14px;
    color: var(--neutral-600);
    font-weight: 400;
}

/* ===== SECCIÓN DE DETALLES ===== */
.details-section {
    background: white;
    border: 1px solid var(--neutral-200);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.tabs {
    display: flex;
    background: var(--neutral-50);
    border-bottom: 1px solid var(--neutral-200);
}

.tab-btn {
    flex: 1;
    padding: var(--space-5);
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: var(--neutral-600);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: inherit;
}

.tab-btn:hover {
    background: white;
    color: var(--neutral-900);
}

.tab-btn.active {
    background: white;
    color: var(--primary-600);
    border-bottom: 2px solid var(--primary-500);
}

.tab-content {
    display: none;
    padding: var(--space-8);
}

.tab-content.active {
    display: block;
}

.facturas-list {
    max-height: 400px;
    overflow-y: auto;
}

.factura-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4);
    border-bottom: 1px solid var(--neutral-200);
    transition: background 0.15s ease;
}

.factura-item:hover {
    background: var(--neutral-50);
}

.factura-item:last-child {
    border-bottom: none;
}

.factura-item.credito {
    border-left: 3px solid var(--danger-500);
}

.factura-item:not(.credito) {
    border-left: 3px solid var(--success-500);
}

.factura-info {
    flex: 1;
}

.factura-nombre {
    font-weight: 500;
    color: var(--neutral-900);
    margin-bottom: var(--space-1);
    font-size: 14px;
}

.factura-fecha {
    font-size: 12px;
    color: var(--neutral-500);
    font-family: "Host Grotesk", sans-serif;
}

.factura-monto {
    font-weight: 600;
    color: var(--neutral-900);
    font-size: 16px;
    font-family: "Host Grotesk", sans-serif;
}

/* ===== SECCIÓN DE ERRORES ===== */
.error-section {
    margin-bottom: var(--space-16);
}

.error-content {
    background: var(--danger-50);
    border: 1px solid var(--danger-200);
    border-radius: var(--border-radius-lg);
    padding: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    color: var(--danger-700);
}

.error-icon {
    width: 24px;
    height: 24px;
    color: var(--danger-500);
    flex-shrink: 0;
}

.error-text p {
    font-weight: 500;
    font-size: 14px;
}

/* ===== ESTADOS DEL TOTAL NETO ===== */
.status.positive {
    color: var(--success-600);
    font-weight: 600;
}

.status.negative {
    color: var(--danger-600);
    font-weight: 600;
}

/* ===== SCROLLBAR PERSONALIZADO ===== */
.facturas-list::-webkit-scrollbar {
    width: 6px;
}

.facturas-list::-webkit-scrollbar-track {
    background: var(--neutral-100);
    border-radius: 3px;
}

.facturas-list::-webkit-scrollbar-thumb {
    background: var(--neutral-300);
    border-radius: 3px;
}

.facturas-list::-webkit-scrollbar-thumb:hover {
    background: var(--neutral-400);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .nav-content {
        padding: 0 var(--space-4);
    }
    
    .main-content {
        padding-top: var(--space-16);
    }
    
    .page-header {
        padding: var(--space-8) 0;
        margin-bottom: var(--space-12);
    }
    
    .header-content h1 {
        font-size: 36px;
    }
    
    .header-content p {
        font-size: 16px;
    }
    
    .upload-container {
        padding: var(--space-12) var(--space-6);
    }
    
    .upload-icon {
        width: 64px;
        height: 64px;
        font-size: 28px;
    }
    
    .upload-content h3 {
        font-size: 20px;
    }
    
    .summary-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        gap: var(--space-4);
    }
    
    .summary-card.neto {
        grid-column: 1;
        grid-row: 1;
        padding: var(--space-6);
    }
    
    .summary-card.debito {
        grid-column: 1;
        grid-row: 2;
    }
    
    .summary-card.credito {
        grid-column: 1;
        grid-row: 3;
    }
    
    .summary-card.neto .card-amount {
        font-size: 36px;
    }
    
    .summary-card.neto .card-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .summary-card {
        padding: var(--space-5);
    }
    
    .card-amount {
        font-size: 28px;
    }
    
    .periodo-filters {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-4);
    }
    
    .progress-stats {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        border-bottom: 1px solid var(--neutral-200);
    }
    
    .tab-btn.active {
        border-bottom: 2px solid var(--primary-500);
    }
}

@media (max-width: 480px) {
    .header-content h1 {
        font-size: 28px;
    }
    
    .upload-content h3 {
        font-size: 18px;
    }
    
    .card-amount {
        font-size: 24px;
    }
    
    .upload-btn {
        padding: var(--space-3) var(--space-6);
        font-size: 14px;
    }
}

/* Badge flotante maker */
.floating-maker {
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 1100;
}

.floating-maker a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--neutral-200);
    border-radius: 999px;
    color: var(--neutral-700);
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(8px);
}

.floating-maker a:hover {
    background: #fff;
    border-color: var(--neutral-300);
    color: var(--neutral-900);
    box-shadow: var(--shadow-md);
}

.floating-maker i {
    color: var(--neutral-800);
    font-size: 16px;
}

.floating-maker img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    display: inline-block;
}