/*
 * =============================================================
 * E-FISCAL SALES SITE — Componente: Tarjetas de Feature
 * Componentes: assets/css/components/cards.css
 * Referencia: .clinerules › css-structure-enforcement
 * =============================================================
 */

/* Tarjeta base */
.feature-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;

    /* Animación de entrada: gestionada por JS */
    opacity: 0;
    transform: translateY(28px);
}

.feature-card.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity .5s ease, transform .5s ease,
                box-shadow .3s ease, border-color .3s ease;
}

/* Línea de acento superior */
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-indigo));
    opacity: 0;
    transition: opacity .3s ease;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border-focus);
}

.feature-card:hover::before {
    opacity: 1;
}

/* Ícono de la tarjeta */
.feature-card__icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(37,99,235,.10), rgba(79,70,229,.10));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    flex-shrink: 0;
}

.feature-card__icon i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

/* Título */
.feature-card__title {
    margin-bottom: .7rem;
    color: var(--color-text-heading);
}

/* Descripción */
.feature-card__desc {
    color: var(--color-text-muted);
    font-size: .95rem;
    margin-bottom: var(--space-sm);
}

/* Lista de ítems dentro de la tarjeta */
.feature-card__list li {
    color: var(--color-text-body);
    font-size: .9rem;
    padding: .35rem 0;
    border-bottom: 1px solid var(--color-bg-subtle);
    display: flex;
    align-items: center;
    gap: .6rem;
}

.feature-card__list li:last-child {
    border-bottom: none;
}

.feature-card__list li::before {
    content: "✓";
    color: var(--color-primary);
    font-weight: 800;
    flex-shrink: 0;
}

/* Tarjeta KPI (bloque visual de estadísticas) */
.kpi-card {
    background: rgba(255, 255, 255, .15);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, .25);
    color: #ffffff;
}

.kpi-card__num {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1;
}

.kpi-card__label {
    font-size: .8rem;
    opacity: .75;
    margin-top: .35rem;
}