/*
 * =============================================================
 * EFISCAL SALES SITE — Estructura y Layout
 * Layout: assets/css/layouts/structure.css
 * Referencia: .clinerules › css-structure-enforcement
 * =============================================================
 */

/* Contenedor genérico */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Grillas */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

/* Sección base */
.section {
    padding: var(--space-2xl) 2rem;
}

.section--subtle {
    background: var(--color-bg-subtle);
}

.section--dark {
    background: linear-gradient(135deg, var(--color-bg-dark), var(--color-bg-dark-alt));
    color: var(--color-text-on-dark);
}

/* Encabezado de sección */
.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-header h2 {
    margin-bottom: .8rem;
}

.section-header p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    max-width: 620px;
    margin: 0 auto;
}

/* Layout del bloque "Por qué EFISCAL" */
.why-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

/* Bloque visual KPI */
.kpi-visual {
    background: linear-gradient(135deg, var(--color-primary), var(--color-indigo));
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
}

.kpi-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

/* Responsive */
@media (max-width: 900px) {
    .why-layout,
    .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .section { padding: 4rem 1.25rem; }
    .container { padding: 0 1.25rem; }
}

/* Botón Flotante de WhatsApp */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: #FFF;
    border-radius: 50%;
    text-align: center;
    font-size: 32px;
    box-shadow: 0px 4px 12px rgba(0,0,0,0.25);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease, background-color 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0px 8px 16px rgba(0,0,0,0.3);
    background-color: #20BA56;
    color: #FFF;
}

@media (max-width: 768px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 26px;
    }
}