:root {
    --color-bg-dark: #020617;
    --color-bg-light: #f9fafb;

    --color-surface-dark: #020617;
    --color-surface-light: #ffffff;

    --color-card-dark: #0b1120;
    --color-card-light: #ffffff;

    --color-primary: #00c9a7;
    --color-text-dark: #e5e7eb;
    --color-text-light: #111827;
    --color-muted-dark: #9ca3af;
    --color-muted-light: #6b7280;
    --color-border-dark: #1f2937;
    --color-border-light: #e5e7eb;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Tema oscuro por defecto */
body.theme-dark {
    background: radial-gradient(circle at top, #0f172a, #020617 55%);
    color: var(--color-text-dark);
}

/* Tema claro */
body.theme-light {
    background: var(--color-bg-light);
    color: var(--color-text-light);
}

/* ============================================
   HEADER SIEMPRE BLANCO
   ============================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: blur(14px);
    box-shadow: 0 6px 18px rgba(15,23,42,.12);
    background: #ffffff !important;
    border-bottom: 1px solid #e5e7eb;
}

.header-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 18px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo {
    height: 70px;
    width: auto;
    display: block;
}

/* Texto "Financial Social System" en negro, sin subrayado */
.brand-text,
.brand-text a,
.brand-subtitle,
.brand-subtitle a {
    font-weight: 600;
    font-size: 0.95rem;
    color: #000000 !important;
    text-decoration: none !important;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.9rem;
}

.main-nav a {
    padding: 6px 10px;
    border-radius: 999px;
    text-decoration: none;
    color: #4b5563; /* gris oscuro fijo */
}

.main-nav a:hover {
    color: #111827;
    background: rgba(148,163,184,.18);
}

/* Menú herramientas / toggles */
.tools-dropdown {
    position: relative;
}

.tools-toggle,
.lang-toggle,
.theme-toggle {
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid;
    font-size: 0.8rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    background: transparent;
}

/* En modo oscuro los botones se ven oscuros, en claro blancos */
body.theme-dark .tools-toggle,
body.theme-dark .lang-toggle,
body.theme-dark .theme-toggle {
    border-color: var(--color-border-dark);
    color: var(--color-text-dark);
    background: #020617;
}

body.theme-light .tools-toggle,
body.theme-light .lang-toggle,
body.theme-light .theme-toggle {
    border-color: var(--color-border-light);
    color: var(--color-text-light);
    background: #ffffff;
}

.tools-menu {
    position: absolute;
    right: 0;
    top: 115%;
    min-width: 210px;
    border-radius: 10px;
    padding: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,.25);
    display: none;
    z-index: 40;
}

body.theme-dark .tools-menu {
    background: #020617;
    border: 1px solid var(--color-border-dark);
}

body.theme-light .tools-menu {
    background: #ffffff;
    border: 1px solid var(--color-border-light);
}

.tools-dropdown.open .tools-menu {
    display: block;
}

.tools-menu-inner {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tool-link {
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 0.8rem;
    text-decoration: none;
    white-space: nowrap;
}

body.theme-dark .tool-link {
    color: #9ca3af;
    background: #020617;
}

body.theme-dark .tool-link:hover {
    background: #022c22;
    border-color: var(--color-primary);
    color: #e5e7eb;
}

body.theme-light .tool-link {
    color: #6b7280;
    background: #ffffff;
}

body.theme-light .tool-link:hover {
    background: #ecfdf5;
    border-color: var(--color-primary);
    color: #0f172a;
}

.tool-link.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #022c22;
    font-weight: 600;
}

/* Aseguramos que ningún enlace del header tenga subrayado */
.site-header a {
    text-decoration: none;
}

/* ============================================
   CONTENEDOR PRINCIPAL
   ============================================ */

.page-wrap {
    padding: 24px 16px 40px;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    border-radius: 18px;
    border: 1px solid;
    box-shadow: 0 24px 60px rgba(0,0,0,.3);
    padding: 24px 20px 28px;
}

body.theme-dark .container {
    background: radial-gradient(circle at top left,#020617,#020617 40%,#0b1120 100%);
    border-color: rgba(148,163,184,.25);
}

body.theme-light .container {
    background: #ffffff;
    border-color: var(--color-border-light);
}

h1 {
    margin-top: 0;
    text-align: center;
    font-size: 2rem;
}

.description {
    text-align: center;
    font-size: 0.95rem;
}

.required-note {
    font-size: 0.8rem;
    text-align: center;
    margin-bottom: 16px;
}

/* ============================================
   SECCIONES / ACORDEÓN
   ============================================ */

.section-block {
    border-radius: 12px;
    border: 1px solid;
    margin-bottom: 14px;
}

body.theme-dark .section-block {
    background: #0b1120;
    border-color: var(--color-border-dark);
}

body.theme-light .section-block {
    background: #ffffff;
    border-color: var(--color-border-light);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    cursor: pointer;
}

.section-title {
    margin: 0 0 2px;
    font-size: 1.05rem;
}

.section-subtitle {
    margin: 0;
    font-size: 0.82rem;
}

.section-toggle-btn {
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    padding: 4px 6px;
}

.section-toggle-btn::before {
    content: "\25B6"; /* ▶️ */
}

.section-block:not(.collapsed) .section-toggle-btn::before {
    content: "\25BE"; /* ▾ */
}

.section-content {
    border-top: 1px solid;
    padding: 10px 14px 14px;
}

body.theme-dark .section-content {
    border-color: var(--color-border-dark);
}

body.theme-light .section-content {
    border-color: var(--color-border-light);
}

.section-block.collapsed .section-content {
    display: none;
}

.section-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

label {
    font-size: 0.9rem;
    font-weight: 600;
}

/* ============================================
   INPUTS
   ============================================ */

input[type="number"],
input[type="text"],
input[type="email"],
select {
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid;
    font-size: 0.95rem;
}

body.theme-dark input,
body.theme-dark select {
    background: #020617;
    color: var(--color-text-dark);
    border-color: var(--color-border-dark);
}

body.theme-light input,
body.theme-light select {
    background: #ffffff;
    color: var(--color-text-light);
    border-color: var(--color-border-light);
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px rgba(0,201,167,.5);
}

/* ============================================
   BOTONES
   ============================================ */

button {
    padding: 11px 20px;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
}

button.primary {
    background: linear-gradient(135deg,var(--color-primary),#19b89c);
    color: #022c22;
    box-shadow: 0 10px 25px rgba(0,201,167,.45);
}

/* ============================================
   MODAL LEAD
   ============================================ */

#leadModal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,.7);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.lead-modal-content {
    border-radius: 14px;
    width: 90%;
    max-width: 420px;
    padding: 24px;
    border: 1px solid;
    box-shadow: 0 20px 40px rgba(0,0,0,.7);
}

body.theme-dark .lead-modal-content {
    background: #020617;
    border-color: var(--color-border-dark);
    color: var(--color-text-dark);
}

body.theme-light .lead-modal-content {
    background: #ffffff;
    border-color: var(--color-border-light);
    color: var(--color-text-light);
}

.lead-select,
.lead-input {
    width: 100%;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid;
}

body.theme-dark .lead-select,
body.theme-dark .lead-input {
    background: #020617;
    color: var(--color-text-dark);
    border-color: var(--color-border-dark);
}

body.theme-light .lead-select,
body.theme-light .lead-input {
    background: #ffffff;
    color: var(--color-text-light);
    border-color: var(--color-border-light);
}

.lead-modal-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}

.lead-modal-actions button {
    flex: 1;
}

.btn-secondary {
    background: #111827;
    color: #e5e7eb;
    border: 1px solid #374151;
}

/* ============================================
   RESULTADOS EN TARJETAS
   ============================================ */

.results {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}

.card {
    border-radius: 12px;
    padding: 12px 16px;
    border: 1px solid;
    transition: transform .08s ease, box-shadow .08s ease;
}

body.theme-dark .card {
    background: #020617;
    border-color: var(--color-border-dark);
    box-shadow: 0 10px 25px rgba(0,0,0,.45);
}

body.theme-light .card {
    background: #ffffff;
    border-color: var(--color-border-light);
    box-shadow: 0 10px 25px rgba(15,23,42,.08);
}

.card:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 35px rgba(0,0,0,.25);
}

.card-title {
    font-size: 0.75rem;
    letter-spacing: .06em;
    text-transform: uppercase;
    margin: 0;
}

body.theme-dark .card-title {
    color: var(--color-muted-dark);
}

body.theme-light .card-title {
    color: var(--color-muted-light);
}

.card-value {
    margin-top: 6px;
    font-size: 1.1rem;
    font-weight: 700;
}

body.theme-dark .card-value {
    color: var(--color-text-dark);
}

body.theme-light .card-value {
    color: var(--color-text-light);
}

.card-value.accent {
    color: #22c55e;
    font-size: 1.15rem;
}

/* ============================================
   BOTONES DE ESCENARIO (centrados, pequeños, mismo tamaño)
   ============================================ */

.scenario-toggle-group {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 12px 0 20px;
    flex-wrap: wrap;
}

.scenario-btn {
    padding: 4px 10px;
    min-width: 90px;
    border-radius: 999px;
    border: 1px solid;
    font-size: 0.78rem;
    cursor: pointer;
    text-align: center;
    transition: background .12s, border-color .12s, color .12s, transform .08s, box-shadow .08s;
}

/* Modo claro */
body.theme-light .scenario-btn {
    color: var(--color-text-light);
    border-color: var(--color-border-light);
    background: #ffffff;
}

/* Modo oscuro */
body.theme-dark .scenario-btn {
    color: var(--color-text-dark);
    border-color: var(--color-border-dark);
    background: #020617;
}

/* Hover */
.scenario-btn:hover {
    transform: translateY(-1px);
    border-color: var(--color-primary);
}

/* Estado activo */
.scenario-btn.active {
    background: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
    color: #022c22 !important;
    font-weight: 600;
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(0,0,0,.25);
}

/* ============================================
   GRÁFICA PRINCIPAL (más alta)
   ============================================ */

.chart-wrapper {
    margin-top: 28px;
}

.chart-canvas-wrap {
    position: relative;
    width: 100%;
    height: 420px; /* desktop */
}

@media (max-width: 600px) {
    .chart-canvas-wrap {
        height: 340px; /* móvil, más alta de lo estándar */
    }
}

/* ============================================
   BOTONES PDF / EXCEL centrados y pequeños
   ============================================ */

.pdf-wrapper {
    margin-top: 18px;
    text-align: center;
}

.pdf-subtitle {
    font-size: 0.8rem;
    color: #9ca3af;
    margin-bottom: 8px;
}

.pdf-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.pdf-btn {
    padding: 7px 18px;
    border-radius: 999px;
    border: none;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    background: #0f172a;
    color: #e5e7eb;
    box-shadow: 0 8px 20px rgba(15,23,42,.6);
    transition: transform .08s, box-shadow .08s, filter .12s;
}

.pdf-btn:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(15,23,42,.7);
}

.pdf-btn:active {
    transform: translateY(1px) scale(.99);
    box-shadow: 0 6px 16px rgba(15,23,42,.5);
}

.pdf-btn-secondary {
    background: #020617;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
    border-top: 1px solid;
}

body.theme-dark .site-footer {
    background: #020617;
    border-color: var(--color-border-dark);
    color: #9ca3af;
}

body.theme-light .site-footer {
    background: #f9fafb;
    border-color: var(--color-border-light);
    color: #6b7280;
}

.footer-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 18px 20px 22px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-size: 0.8rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-links a {
    text-decoration: none;
}

/* ============================================
   RESPONSIVE GENERAL
   ============================================ */

@media (max-width: 600px) {
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
    }

    .container {
        padding: 18px 14px 22px;
    }

    h1 {
        font-size: 1.6rem;
    }

    .results {
        grid-template-columns: 1fr;
    }
}