:root {
    --primary: #2563eb;
    --bg: #f1f5f9;
    --panel: #ffffff;
    --text: #1e293b;
    --border: #e2e8f0;
    --footer-bg: #0f172a;
    --footer-text: #f8fafc;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(--bg); color: var(--text); overflow-x: hidden; transition: background-color 0.3s, color 0.3s; }

.card, .sidebar, .site-header, input, select, textarea, details { transition: background-color 0.3s, border-color 0.3s, color 0.3s, box-shadow 0.3s; }

/* =========================================
   MODO OSCURO (DARK MODE)
   ========================================= */
/* Correcciones visuales para paneles avanzados en Modo Oscuro */
body.dark-mode #vpwParamsPanel, body.dark-mode #pensionPanel {
    background: rgba(59, 130, 246, 0.1) !important;
    border-color: #3b82f6 !important;
}
body.dark-mode #vpwParamsPanel p, body.dark-mode #vpwParamsPanel label, body.dark-mode #pensionPanel label {
    color: #93c5fd !important;
}
body.dark-mode #vpwParamsPanel input, body.dark-mode #pensionPanel input {
    border-color: #3b82f6 !important;
}

body.dark-mode #guytonParamsPanel {
    background: rgba(22, 163, 74, 0.1) !important;
    border-color: #16a34a !important;
}
body.dark-mode #guytonParamsPanel label {
    color: #86efac !important;
}
body.dark-mode #guytonParamsPanel input {
    border-color: #16a34a !important;
}

body.dark-mode #plusvaliasLatentes {
    background-color: #022c22 !important;
    border-color: #059669 !important;
    color: #f8fafc !important;
}
body.dark-mode #i18n-l_plusvalias {
    color: #4ade80 !important;
}
body.dark-mode { color-scheme: dark; --bg: #0f172a; --panel: #1e293b; --text: #f8fafc; --border: #334155; --footer-bg: #020617; }
body.dark-mode .section-title, body.dark-mode .logo-area h1, body.dark-mode .results-section h2 { color: var(--text); }
body.dark-mode select.select-top { background-color: #0f172a; color: #f8fafc; border-color: #334155; }
body.dark-mode select.select-top option { background-color: #0f172a; color: #f8fafc; }
body.dark-mode input, body.dark-mode textarea { background-color: #0f172a; color: var(--text); border-color: #334155; }
body.dark-mode .input-locked { background-color: #334155 !important; border-color: #475569 !important; color: #94a3b8; }
body.dark-mode .dynamic-row { background: #0f172a; }
body.dark-mode .stat-box { background: #0f172a; border-color: #334155; }
body.dark-mode .seo-article h2, body.dark-mode .seo-article h3 { color: var(--text); }
body.dark-mode details { background: #0f172a; border-color: #334155; }
body.dark-mode details summary { color: var(--text); }
body.dark-mode details:hover { background: #1e293b; border-color: #475569; }
body.dark-mode details p { color: #cbd5e1; border-color: var(--border); }
body.dark-mode details ul { color: #cbd5e1; }
body.dark-mode .disclaimer { background: #0f172a; border-color: #475569; color: #94a3b8; }
body.dark-mode .form-group label, body.dark-mode .row-header, body.dark-mode p { color: #94a3b8; }
body.dark-mode .info-icon { background-color: #475569; }
body.dark-mode .info-icon:hover { background-color: var(--primary); }
body.dark-mode #advancedPanelYellow, body.dark-mode #advancedPanelRed { background: #022c22; border-color: #065f46; }
body.dark-mode #estrategiaRetiro { background: #0f172a !important; color: #4ade80 !important; border-color: #059669 !important; }

/* Botones especiales modo oscuro (Morados) */
body.dark-mode .checkbox-container { background: #1e1b4b; border-color: #3730a3; }
body.dark-mode .checkbox-container span { color: #a5b4fc !important; }

/* Correcciones específicas del panel de tramos en Modo Oscuro */
body.dark-mode #panelTramosFiscales .row-header span,
body.dark-mode #i18n-l_taxes {
    color: #cbd5e1 !important; /* Gris claro para las etiquetas */
}
body.dark-mode #panelTramosFiscales input[type="number"] {
    background-color: #1e293b !important;
    color: #f1f5f9 !important;
    border: 1px solid #475569 !important;
}
body.dark-mode #panelTramosFiscales input[type="number"]:focus {
    border-color: var(--primary) !important;
    outline: none;
}
body.dark-mode input:disabled.input-locked {
    background-color: #0f172a !important;
    color: #64748b !important;
    border-color: #334155 !important;
    font-style: italic;
}
body.dark-mode .card.advanced-tax-card {
    border-color: #334155 !important;
}

/* =========================================
   CABECERA Y NAVEGACIÓN
   ========================================= */
.btn-theme { background: transparent; border: none; font-size: 1.3rem; cursor: pointer; padding: 5px 10px; border-radius: 20px; transition: background 0.3s; display: flex; align-items: center; justify-content: center; }
.btn-theme:hover { background: var(--border); }

.site-header { background: var(--panel); box-shadow: 0 1px 4px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 100; margin-bottom: 30px; }
.header-content { display: flex; align-items: center; max-width: 1400px; margin: 0 auto; padding: 15px 20px; position: relative; }
.logo-area { display: flex; align-items: center; gap: 12px; position: absolute; left: 50%; transform: translateX(-50%); }
.logo-icon { font-size: 2rem; }
.logo-area h1 { color: #0f172a; font-size: 1.4rem; font-weight: 800; margin: 0; letter-spacing: -0.5px; }
.controls-top { display: flex; gap: 12px; margin-left: auto; z-index: 10; align-items: center; }
.select-top { padding: 8px 15px; border-radius: 20px; border: 1px solid #cbd5e1; font-size: 0.9rem; background-color: #f8fafc; color: #475569; cursor: pointer; font-weight: 600; outline: none; transition: all 0.2s ease; }
.select-top:hover, .select-top:focus { border-color: var(--primary); color: var(--primary); }

/* =========================================
   DISEÑO PRINCIPAL (LAYOUT)
   ========================================= */
.calculator-wrapper { display: flex; gap: 20px; max-width: 1400px; margin: 0 auto; align-items: stretch; padding: 0 20px; }
.sidebar { width: 380px; flex-shrink: 0; background: var(--panel); padding: 20px; border-radius: 12px; box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1); }
.main-content { flex: 1; display: flex; flex-direction: column; gap: 20px; min-width: 0; }
.card { background: var(--panel); padding: 20px; border-radius: 12px; box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1); }
.chart-card { min-height: 450px; display: flex; flex-direction: column; }
#chart-container { flex: 1; position: relative; width: 100%; min-height: 400px; }

.section-title { font-size: 1.1rem; font-weight: bold; margin-bottom: 10px; margin-top: 20px; padding-bottom: 5px; border-bottom: 2px solid var(--border); color: #0f172a; }
.section-title:first-child { margin-top: 0; }

.info-icon { display: inline-flex; align-items: center; justify-content: center; width: 16px; height: 16px; border-radius: 50%; background-color: #cbd5e1; color: #fff; font-size: 0.75rem; font-weight: bold; cursor: help; margin-left: 8px; transition: 0.2s; font-family: sans-serif; }
.info-icon:hover { background-color: var(--primary); }

/* =========================================
   FORMULARIOS Y COMPONENTES
   ========================================= */
.grid-3-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 15px; }
.grid-2-col { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 15px; }
.form-group label { display: block; font-size: 0.8rem; font-weight: 600; margin-bottom: 4px; color: #475569; }

input[type="number"], input[type="text"], input[type="email"], textarea { width: 100%; padding: 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 0.9rem; background: var(--bg); font-family: inherit; }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary); background: var(--panel); }
textarea { resize: vertical; }
.input-locked { background-color: #e2e8f0 !important; color: #64748b; cursor: not-allowed; border-color: #cbd5e1 !important; }

.row-header { display: grid; grid-template-columns: 1fr 1fr 1.2fr 30px; gap: 8px; font-size: 0.8rem; font-weight: bold; color: #475569; margin-bottom: 5px; padding: 0 5px; }
.row-header-stress { grid-template-columns: 1fr 1fr 30px; }
.dynamic-row { display: grid; gap: 8px; align-items: center; background: var(--bg); padding: 8px; border-radius: 6px; margin-bottom: 8px; }
.cf-row { grid-template-columns: 1fr 1fr 1.2fr 30px; }
.se-row { grid-template-columns: 1fr 1fr 30px; }

/* Botones */
.btn-small { padding: 6px; font-size: 0.85rem; cursor: pointer; border: none; border-radius: 4px; font-weight: bold; }
.btn-remove { background: #ef4444; color: white; width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; }
.btn-remove:hover { background: #dc2626; }
.btn-add { background: #059669; color: white; width: 100%; padding: 10px; margin-bottom: 10px; margin-top: 5px;}
.btn-add:hover { background: #047857; }.btn-run { width: 100%; padding: 15px; background: var(--primary); color: white; border: none; border-radius: 8px; font-size: 1.1rem; font-weight: bold; cursor: pointer; margin-top: 20px; transition: background 0.2s; }
.btn-run:hover { background: #1d4ed8; }
.btn-run:disabled { background: #94a3b8; cursor: not-allowed; }

/* Interruptores (Checkboxes con estilo de botón) */
.checkbox-container { display: flex; align-items: center; gap: 8px; background: #e0e7ff; padding: 10px; border-radius: 6px; margin-bottom: 15px; border: 1px solid #c7d2fe; cursor: pointer; transition: background-color 0.2s, border-color 0.2s;}
.checkbox-container:hover { border-color: var(--primary); }
.checkbox-container input { width: 18px; height: 18px; cursor: pointer; margin: 0; accent-color: var(--primary); }
.checkbox-container span { font-size: 0.85rem; font-weight: 600; color: #3730a3; }

/* Paneles de Configuración con borde (Guardados, Impuestos, Glidepath) */
.bordered-panel { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 15px; box-shadow: 0 2px 4px rgb(0 0 0 / 0.05); }

#advancedPanelYellow, #advancedPanelRed { display: none; background: #f0fdf4; border: 1px solid #bbf7d0; padding: 15px; border-radius: 8px; margin-bottom: 15px; animation: fadeIn 0.3s ease-in-out;}
@keyframes fadeIn { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }

/* Configuraciones específicas de Tramos y Glidepath */
#tramosContainer .tramo-row { margin-bottom: 15px !important; gap: 10px; }
.glidepath-grid, #glidepathContainer .se-row { grid-template-columns: 1fr 1fr 1fr 1fr 30px !important; gap: 10px; align-items: center; }
#glidepathPanel .btn-add { width: 100%; margin-top: 10px; display: flex; justify-content: center; align-items: center; }

/* =========================================
   SECCIÓN DE RESULTADOS
   ========================================= */
.results-section h2 { font-size: 1.2rem; margin-bottom: 12px; color: #0f172a; }
.results-wrapper { display: flex; gap: 20px; }
.results-block { flex: 1; }
.results-grid { display: grid; gap: 12px; text-align: center; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.stat-box { padding: 15px; border-radius: 8px; background: var(--bg); border: 1px solid var(--border); }
.stat-box h3 { margin: 0 0 5px 0; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-box p { margin: 0; font-size: 1.3rem; font-weight: bold; }
.stat-box small { font-size: 0.75rem; color: #64748b; }

/* Colores oscurecidos para aprobar el contraste en fondo claro */
.red { color: #dc2626; } 
.yellow { color: #92400e; } 
.green { color: #059669; }
.blue { color: #2563eb; } 
.purple { color: #7e22ce; }

/* Forzamos colores brillantes y legibles cuando se activa el Modo Oscuro */
body.dark-mode .red { color: #f87171; }
body.dark-mode .yellow { color: #fbbf24; }
body.dark-mode .green { color: #34d399; }
body.dark-mode .blue { color: #60a5fa; }
body.dark-mode .purple { color: #c084fc; }
.alert { background: #fee2e2; color: #991b1b; padding: 12px; border-radius: 6px; display: none; margin-top: 15px; font-size: 0.9rem; font-weight: bold; text-align: center; }

/* =========================================
   PANEL DE MIS SIMULACIONES GUARDADAS
   ========================================= */
.saved-sim-container { margin-top: 15px; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 15px; box-shadow: 0 2px 4px rgb(0 0 0 / 0.05); }
.saved-sim-header { font-weight: bold; margin-bottom: 10px; color: var(--text); font-size: 1rem; display: flex; align-items: center; gap: 8px; }
.saved-sim-input-group { display: flex; gap: 8px; margin-bottom: 15px; }
.saved-sim-list { display: flex; flex-direction: column; gap: 8px; max-height: 250px; overflow-y: auto; padding-right: 5px; }
.saved-sim-item { display: flex; justify-content: space-between; align-items: center; background: var(--bg); padding: 10px 12px; border-radius: 6px; border: 1px solid var(--border); transition: 0.2s;}
.saved-sim-item:hover { border-color: var(--primary); }
.saved-sim-item-info { display: flex; flex-direction: column; gap: 2px; }
.saved-sim-item-name { font-weight: bold; color: var(--text); font-size: 0.9rem; }
.saved-sim-item-date { font-size: 0.75rem; color: #64748b; }
.saved-sim-actions { display: flex; gap: 5px; }

/* =========================================
   ARTÍCULOS SEO Y FAQ
   ========================================= */
.seo-wrapper { padding: 0 20px; }
.seo-article { max-width: 1000px; margin: 40px auto; background: var(--panel); padding: 40px; border-radius: 12px; box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1); line-height: 1.7; color: #334155; }
.seo-article h2 { color: #0f172a; margin-bottom: 15px; margin-top: 35px; font-size: 1.6rem; border-bottom: 2px solid var(--border); padding-bottom: 8px;}
.seo-article h2:first-child { margin-top: 0; }
.seo-article h3 { color: #1e293b; margin-top: 25px; margin-bottom: 10px; font-size: 1.2rem; }
.seo-article p { margin-bottom: 15px; }

.faq-container { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
details { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 15px; cursor: pointer; transition: all 0.3s ease; }
summary { font-weight: 700; color: #0f172a; font-size: 1.05rem; outline: none; list-style: none; display: flex; justify-content: space-between; align-items: center; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "▼"; font-size: 0.8em; color: var(--primary); transition: transform 0.3s; }
details[open] summary::after { transform: rotate(180deg); }
details p { margin-top: 12px; margin-bottom: 0; color: #475569; font-size: 0.95rem; border-top: 1px solid var(--border); padding-top: 12px; }
details ul { margin-top: 12px; color: #475569; font-size: 0.95rem; padding-left: 25px; }
details ul li { margin-bottom: 8px; line-height: 1.6; }

.disclaimer { background: var(--bg); border-left: 4px solid #64748b; padding: 15px; font-size: 0.85rem; color: #475569; margin-top: 40px; }

/* =========================================
   PIE DE PÁGINA (FOOTER) Y FORMULARIO CONTACTO
   ========================================= */
.site-footer { background-color: var(--footer-bg); color: var(--footer-text); padding: 50px 20px 20px 20px; margin-top: 40px; }
.footer-content { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; text-align: center; }
.footer-content h2 { font-size: 1.8rem; margin-bottom: 10px; color: #fff; }
.footer-content p { color: #94a3b8; margin-bottom: 25px; font-size: 1rem; }

.contact-form { width: 100%; max-width: 500px; background: #1e293b; padding: 25px; border-radius: 12px; text-align: left; }
.contact-form .form-group label { color: #cbd5e1; }
.contact-form input, .contact-form textarea { background: #0f172a; border-color: #334155; color: #fff; margin-bottom: 15px; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--primary); background: #0f172a; }
.contact-form .btn-run { margin-top: 5px; }

.hidden-bot-field { display: none; }
.copyright { margin-top: 40px; color: #94a3b8; font-size: 0.85rem; }
.legal-links a { color: #93c5fd; font-weight: 500; }

/* =========================================
   MENÚS DESPLEGABLES ACORDEÓN (INTERFAZ JS)
   ========================================= */
.section-header-toggle { cursor: pointer; user-select: none; transition: opacity 0.2s; }
.section-header-toggle:hover { opacity: 0.7; }
.collapsible-panel { display: none; margin-bottom: 15px; }
.collapsible-panel.open { display: block; }

/* =========================================
   PLANTILLA DE EXPORTACIÓN (INFOGRAFÍA 1:1)
   ========================================= */
#export-template {
    position: absolute;
    left: -9999px;
    top: 0;
    width: 1080px;
    height: 1080px;
    background-color: #0f172a;
    color: #f8fafc;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    z-index: -1;
}

.export-container { padding: 35px 50px; display: flex; flex-direction: column; height: 100%; box-sizing: border-box; background: radial-gradient(circle at top right, #1e293b, #0f172a); }
.export-header { text-align: center; margin-bottom: 20px; }
.export-header h2 { color: #94a3b8; font-size: 32px; margin-bottom: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 2px;}
.export-header h1 { font-size: 60px; font-weight: 900; margin: 0; color: #fff; }

.export-summary-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; margin-bottom: 25px; }
.exp-box { background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 14px; padding: 15px 10px; text-align: center; }
.exp-box span { display: block; font-size: 20px; color: #94a3b8; margin-bottom: 8px; font-weight: 600; }
.exp-box strong { display: block; font-size: 26px; color: #fff; font-weight: 800; }
#exp-alloc { font-size: 20px; }

.export-chart-container { flex: 1; background: rgba(0,0,0,0.3); border-radius: 16px; padding: 20px; border: 1px solid rgba(255, 255, 255, 0.1); margin-bottom: 25px; min-height: 280px; position: relative; }
.export-results-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 20px; }
.exp-res-box { border-radius: 16px; padding: 25px 20px; text-align: center; }
.exp-res-box.exp-p10 { background: rgba(239, 68, 68, 0.1); border: 2px solid #ef4444; }
.exp-res-box.exp-p50 { background: rgba(245, 158, 11, 0.1); border: 2px solid #f59e0b; }
.exp-res-box.exp-p90 { background: rgba(16, 185, 129, 0.1); border: 2px solid #10b981; }
.exp-res-box span { display: block; font-size: 28px; margin-bottom: 10px; font-weight: bold; text-transform: uppercase; }
.exp-p10 span { color: #fca5a5; } .exp-p50 span { color: #fcd34d; } .exp-p90 span { color: #6ee7b7; }
.exp-res-box strong { display: block; font-size: 46px; color: #fff; font-weight: 900; }

.export-badge { text-align: center; font-size: 28px; font-weight: 900; padding: 15px; border-radius: 20px; margin-bottom: 20px; text-transform: uppercase; }
.badge-green { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 2px solid #10b981; }
.badge-yellow { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 2px solid #f59e0b; }
.badge-red { background: rgba(239, 68, 68, 0.15); color: #f87171; border: 2px solid #ef4444; }

.export-footer { text-align: center; color: #94a3b8; }
.export-footer p { font-size: 24px; margin-bottom: 5px; }
.export-footer h3 { font-size: 34px; color: #3b82f6; margin: 0; font-weight: 900; letter-spacing: 1px;}

/* =========================================
   MEDIA QUERIES (RESPONSIVE)
   ========================================= */
@media (min-width: 992px) {
    .main-content {
        position: sticky;
        top: 80px;
        height: fit-content;
        align-self: start;
        z-index: 10;
    }
}
@media (max-width: 900px) {
    .header-content { flex-direction: column; gap: 15px; text-align: center; }
    .logo-area { position: relative; left: auto; transform: none; justify-content: center; }
    .controls-top { margin-left: 0; justify-content: center; }
    .calculator-wrapper { flex-direction: column; }
    .sidebar { width: 100%; }
    .results-wrapper { flex-direction: column; }
    .seo-article { padding: 25px; }
}
@media (max-width: 768px) {
    .results-grid {
        grid-template-columns: 1fr !important;
        gap: 10px;
    }
}
@media (max-width: 600px) {
    .header-logo-container {
        justify-content: center;
    }
    .ph-badge {
        height: 35px !important;
    }
    .logo-area h1 {
        font-size: 1.2rem;
    }
}

/* =========================================
   TABLA RESPONSIVA AÑO A AÑO (MÓVILES)
   ========================================= */
.table-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch; /* Hace que el deslizamiento sea fluido en iPhone/iOS */
    padding-bottom: 5px; /* Espacio extra para la barra de scroll */
}

.table-scroll-area {
    min-width: 600px; /* Obliga a la tabla a tener este ancho. Si la pantalla es menor, se activa el scroll */
}

/* =========================================
   ACTUALIZACIÓN DE TABLAS DE FLUJO (Web y Móvil)
   ========================================= */

/* 1. Ajuste de 5 columnas flexible para la pestaña de Flujos */
#tab-flujos .row-header,
#tab-flujos .cf-row {
    display: grid !important;
    grid-template-columns: minmax(40px, 1fr) minmax(40px, 1fr) 1.2fr 1.5fr 30px !important;
    gap: 8px;
    align-items: center;
}

/* 1.1 Ajuste de 4 columnas flexible para la pestaña Extra */
#tab-extra .row-header,
#tab-extra .extra-flow-row {
    display: grid !important;
    grid-template-columns: minmax(50px, 1fr) 1.2fr 1.5fr 30px !important;
    gap: 8px;
    align-items: center;
}

/* Forzamos a que ocupen todo el espacio disponible */
.cf-row input, .cf-row select,
.extra-flow-row input, .extra-flow-row select {
    width: 100%;
    box-sizing: border-box;
}

/* 2. UX: Selector de Acción (Icono/Texto manejado por JS) */
.cf-type {
    cursor: pointer;
    text-align: center;
    appearance: none; /* Oculta la flecha nativa */
    -webkit-appearance: none;
    -moz-appearance: none;
}

/* 3. Colores Dinámicos Intensificados para la casilla de dinero */
.cf-val.type-aportar { background-color: #d1fae5 !important; border-color: #10b981 !important; color: #064e3b !important; }
.cf-val.type-retirar { background-color: #fee2e2 !important; border-color: #ef4444 !important; color: #7f1d1d !important; }
.cf-val.type-pausa   { background-color: #f1f5f9 !important; border-color: #cbd5e1 !important; color: #64748b !important; }

body.dark-mode .cf-val.type-aportar { background-color: rgba(16, 185, 129, 0.25) !important; border-color: #10b981 !important; color: #4ade80 !important; }
body.dark-mode .cf-val.type-retirar { background-color: rgba(239, 68, 68, 0.25) !important; border-color: #ef4444 !important; color: #f87171 !important; }
body.dark-mode .cf-val.type-pausa   { background-color: #0f172a !important; border-color: #334155 !important; color: #94a3b8 !important; }

/* 4. Diseño en línea EXTREMO para Móviles (< 550px) */
@media (max-width: 550px) {
    #tab-flujos .row-header,
    #tab-flujos .cf-row {
        /* Estrechamos al máximo las columnas para que quepan las 5 en una línea */
        grid-template-columns: minmax(30px, 1fr) minmax(30px, 1fr) 1fr 1.5fr 25px !important;
        gap: 4px !important;
    }

    #tab-extra .row-header,
    #tab-extra .extra-flow-row {
        grid-template-columns: minmax(40px, 1fr) 1fr 1.5fr 25px !important;
        gap: 4px !important;
    }

    #tab-flujos .row-header,
    #tab-extra .row-header {
        font-size: 0.65rem;
        text-align: center;
    }

    .cf-row input, .cf-row select,
    .extra-flow-row input, .extra-flow-row select {
        padding: 6px 2px !important; /* Reducimos el padding lateral para ganar espacio */
        font-size: 0.8rem;
        text-align: center;
    }

    .cf-row .btn-remove,
    .extra-flow-row .btn-remove {
        width: 25px;
        height: 25px;
        padding: 0;
        display: flex;
        justify-content: center;
        align-items: center;
    }
}


/* =========================================
   MODAL SWR ELEGANTE
   ========================================= */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(5px);
    display: flex; justify-content: center; align-items: center;
    z-index: 9999;
    opacity: 0; animation: fadeIn 0.3s forwards;
}

.modal-card {
    background: var(--panel);
    padding: 30px; border-radius: 16px;
    width: 90%; max-width: 400px;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transform: translateY(20px); animation: slideUp 0.3s forwards;
}

.modal-icon { font-size: 3.5rem; margin-bottom: 15px; line-height: 1; }
.modal-card h3 { color: var(--text); margin-bottom: 10px; font-size: 2rem; font-weight: 800; }
.modal-card p { color: #64748b; margin-bottom: 20px; font-size: 1rem; line-height: 1.5; }

.modal-amount {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    font-size: 1.5rem; font-weight: bold;
    padding: 15px; border-radius: 8px;
    border: 1px dashed #10b981;
}

@keyframes fadeIn { to { opacity: 1; } }
@keyframes slideUp { to { transform: translateY(0); } }

/* =========================================
   COHERENCIA DE BOTONES SWR
   ========================================= */
/* Aseguramos que el botón principal de SWR use el mismo estilo de negrita que en HTML */
#btnSWR { font-weight: bold; }

/* El color verde es el mismo #10b981 que tenían los botones SWR.
   Si en style.css el .btn-add tiene otro verde, esta variable lo
   unificará en el modal */
#i18n-btn_swr_close {
    background-color: #10b981; /* O la variable que uses para .btn-add */
    font-weight: bold;
}

/* Posicionamiento relativo para anclar el tooltip al icono */
.info-icon {
  position: relative;
  cursor: pointer;
  outline: none; /* Evita el borde azul feo al hacer clic en Android/Chrome */
}

/* El cuadro negro flotante (oculto por defecto) */
.info-icon::after {
  content: attr(title); /* Extrae mágicamente el texto de tus traducciones */
  position: absolute;
  bottom: 150%; 
  left: 50%;
  transform: translateX(-50%);
  background-color: #1e293b; /* Color oscuro que pega con tu tema */
  color: #f8fafc;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: normal;
  white-space: normal;
  width: max-content;
  max-width: 250px;
  text-align: center;
  z-index: 1000;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  
  /* Oculto, pero con transición suave */
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

/* El pequeño triángulo que apunta hacia abajo */
.info-icon::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px;
  border-style: solid;
  border-color: #1e293b transparent transparent transparent;
  z-index: 1000;
  
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

/* Se muestra al pasar el ratón (PC) O al tocar/enfocar (Móvil) */
.info-icon:hover::after,
.info-icon:focus::after,
.info-icon:hover::before,
.info-icon:focus::before {
  opacity: 1;
  visibility: visible;
}

/* =========================================================
   ADAPTACIÓN DE TOOLTIPS PARA MÓVILES (Evita que se corten)
   ========================================================= */
@media (max-width: 768px) {
  .info-icon::after {
    /* Lo "desenganchamos" del icono y lo fijamos a la pantalla */
    position: fixed; 
    top: auto;
    bottom: 30px; /* Aparecerá flotando abajo */
    
    /* Lo centramos usando porcentajes seguros */
    left: 5%;
    right: auto;
    width: 90%; 
    max-width: none; 
    transform: none; /* Quitamos el centrado antiguo */
    
    /* Mejoramos la legibilidad para pantallas pequeñas */
    padding: 12px 15px;
    font-size: 0.85rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    z-index: 99999; /* Aseguramos que esté por encima de todo el simulador */
  }

  /* Ocultamos el pequeño triángulo (flecha) porque ya no apunta al icono */
  .info-icon::before {
    display: none; 
  }
}
/* =========================================
   SISTEMA DE PESTAÑAS (SIDEBAR TABS)
   ========================================= */
.sidebar-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border);
    overflow-x: auto;
    scrollbar-width: none; /* Oculta scroll en Firefox */
}
.sidebar-tabs::-webkit-scrollbar { display: none; } /* Oculta scroll en Chrome/Safari */

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    padding: 10px 5px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    border-bottom: 3px solid transparent;
    opacity: 0.6;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.tab-btn:hover {
    opacity: 1;
    background: rgba(37, 99, 235, 0.05); /* Efecto hover sutil */
}

.tab-btn.active {
    opacity: 1;
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
    animation: fadeInTab 0.3s ease;
}

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

@keyframes fadeInTab {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* En modo oscuro, nos aseguramos de que el hover se vea bien */
body.dark-mode .tab-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}



/* =========================================
   CABECERA COMPACTA EN MÓVIL AL HACER SCROLL
   ========================================= */
.site-header {
    transition: box-shadow 0.3s ease;
}

.header-content {
    transition: padding 0.3s ease, gap 0.3s ease;
}

/* Apuntamos específicamente al área del logo (Simulador) y al enlace del título (Blog) */
.logo-area,
.header-logo-container > a {
    transition: max-height 0.3s ease, opacity 0.3s ease, margin 0.3s ease;
    max-height: 150px;
    opacity: 1;
    overflow: hidden;
}

/* Efecto al hacer scroll solo en móviles/tablets */
@media (max-width: 900px) {
    .site-header.scrolled .logo-area,
    .site-header.scrolled .header-logo-container > a {
        max-height: 0;
        opacity: 0;
        margin: 0 !important;
    }
    
    /* Quitamos el margen superior de los links del blog para que queden centrados al ocultarse el título */
    .site-header.scrolled .nav-links {
        margin-top: 0 !important;
        transition: margin-top 0.3s ease;
    }
    
    .site-header.scrolled .header-content {
        gap: 5px !important; 
        padding-top: 10px; 
        padding-bottom: 10px;
    }
}
/* =========================================
   AJUSTE DE CABECERA ANTI-DESBORDAMIENTO (MÓVILES)
   ========================================= */
@media (max-width: 600px) {
    .header-content {
        padding: 10px 5px !important; /* Reducimos los márgenes laterales para ganar espacio */
    }
    
    .logo-area h1 {
        font-size: 1.1rem; /* Título un poco más compacto */
        line-height: 1.2;
        text-align: center;
    }
    
    .controls-top {
        flex-wrap: wrap; /* ¡La clave! Permite que los botones bajen a una segunda línea si no caben */
        gap: 8px; /* Menos espacio muerto entre botones */
        justify-content: center;
        width: 100%;
    }
    
    .select-top {
        padding: 6px 10px !important; /* Selectores más estrechos */
        font-size: 0.8rem !important;
    }
    
    .controls-top > button {
        padding: 6px 12px !important; /* Hacemos el botón del blog más compacto */
        font-size: 0.85rem !important;
    }
}

/* Refuerzo para alineación de cabecera de simulaciones guardadas */
.saved-sim-header {
    display: flex !important; /* Forzar Flexbox */
    justify-content: space-between !important; /* Texto a la izquierda, Botón a la derecha */
    align-items: center !important; /* Centrado vertical */
    width: 100% !important;
    gap: 10px;
    flex-wrap: nowrap !important; /* Forzar que NUNCA bajen a la línea de abajo */
}

#googleButtonContainer {
    margin-left: auto !important; /* Asegurar empuje a la derecha */
    flex-shrink: 0 !important; /* Asegurar que Google no se encoja y desaparezca */
}

/* Blindaje avanzado para el botón de Google en Móviles (Especial iOS Safari) */
body.dark-mode #googleButtonContainer, 
body.dark-mode #googleButtonContainer > div, 
body.dark-mode #googleButtonContainer iframe {
    background-color: transparent !important;
    color-scheme: dark !important; /* Forzamos SOLO dark, quitamos el light */
}

body.dark-mode #googleButtonContainer {
    border-radius: 4px; /* Coincide con el radio del botón de Google */
    overflow: hidden; /* Corta mágicamente las esquinas blancas que asoman */
    transform: translateZ(0); /* Truco: Fuerza a Safari móvil a renderizar bien la transparencia del iframe */
}

/* Mantenemos el comportamiento neutral para el modo claro */
body:not(.dark-mode) #googleButtonContainer, 
body:not(.dark-mode) #googleButtonContainer > div, 
body:not(.dark-mode) #googleButtonContainer iframe {
    background-color: transparent !important;
    color-scheme: light !important;
}


/* =========================================
   ESTILOS DEL MAPA DE CALOR (HEATMAP)
   ========================================= */
#heatmapTable th, #heatmapTable td {
    padding: 12px 8px;
    border: 2px solid var(--panel); /* Borde del color del panel para separar celdas */
    font-weight: bold;
    font-size: 0.95rem;
    border-radius: 4px;
}
#heatmapTable th {
    background: var(--bg);
    color: var(--text);
    font-size: 0.85rem;
    text-transform: uppercase;
}
.hm-cell {
    color: #fff;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3); /* Letras legibles aunque el fondo sea claro */
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.2s;
    cursor: default;
}
.hm-cell:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    position: relative;
    z-index: 10;
}
/* Forzamos que las esquinas de la tabla no sean puntiagudas */
#heatmapTable { border-spacing: 2px; border-collapse: separate; }



/* =========================================
   ALINEACIÓN GENERAL DE FORMULARIOS
   ========================================= */

/* 1. Estandarizar todas las etiquetas (labels) en TODAS las pantallas */
.card label,
.form-group label {
    display: flex;
    align-items: flex-end; /* Empuja el texto hacia abajo */
    min-height: 2.5em; /* Reserva espacio para 2 líneas */
    margin-bottom: 5px;
    line-height: 1.2;
}

/* 2. Alineación al fondo para las cuadrículas (Añadidas tus clases reales del HTML) */
.grid-2-col, 
.grid-3-col, 
.grid-4-col {
    align-items: end; /* Los inputs caen a la misma línea base */
}

/* 3. Reseteo SOLO para elementos que se apilan (1 sola columna) en móvil */
@media (max-width: 767px) {
    /* Si configuras .grid-2-col para que en móvil sea de 1 sola columna (display: block o grid-template-columns: 1fr): */
    .stack-on-mobile label {
        min-height: auto; 
        align-items: flex-start; 
    }
}