:root {
    --primary-dark-arrow: linear-gradient(135deg, #2c3e50 0%, #1a2533 100%);
    --primary-dark: #22324a;
    --secondary-slate-arrow: linear-gradient(135deg, #7f8c8d 0%, #5d6e80 100%);
    --secondary-slate: #58697d;
    --accent-gold-arrow: linear-gradient(135deg, #f4eedc 0%, #e6dcc0 100%);
    --accent-gold: #c5a47e;
    --bg-light: #f8fafc;
    --line-color: #cbd5e1;
    --stagger: 0.2s;
}

.main-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    max-width: 1300px;
    margin: 0 auto;
}

/* --- ANIMACIÓN DE ENTRADA --- */
@keyframes slideDownReveal {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.layer {
    display: flex;
    flex-direction: column;
    position: relative;
}

.layer-1 {
    grid-column: span 3;
}

.layer-2 {
    grid-column: span 1;
}

.layer-3 {
    grid-column: span 2;
}

/* --- CABECERAS --- */
.arrow-box {
    opacity: 0;
}

.is-visible .arrow-box {
    width: 100%;
    z-index: 10;
    opacity: 0;
    animation: slideDownReveal 0.6s ease-out forwards;
}

.arrow-line {
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: white;
    border-radius: 7px;
    clip-path: polygon(0% 0%, calc(100% - 15px) 0%, 100% 50%, calc(100% - 15px) 100%, 0% 100%);
    padding-right: 15px;
}

.arrow-line-1 {
    background: var(--primary-dark-arrow);
}

.arrow-line-2 {
    background: var(--secondary-slate-arrow);
}

.arrow-line-3 {
    background: var(--accent-gold-arrow);
    color: #22324a;
}

/* --- GRID Y CONECTORES --- */
.columns-grid {
    display: grid;
    gap: 15px;
    margin-top: 35px;
    position: relative;
    flex: 1;
}

.layer-1 .columns-grid {
    grid-template-columns: repeat(3, 1fr);
}

.layer-2 .columns-grid {
    grid-template-columns: 1fr;
}

.layer-3 .columns-grid {
    grid-template-columns: repeat(2, 1fr);
}

/* --- LA FICHA (COLUMNA) --- */
.column {
    opacity: 0;
}

.is-visible .column {
    background: #fafafa;
    border-radius: 12px;
    padding: 30px 15px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-top: 4px solid transparent;
    position: relative;
    top: 0;
    opacity: 0;
    animation: slideDownReveal 0.6s ease-out forwards;
    transition: top 0.4s cubic-bezier(0.25, 1, 0.5, 1),
        box-shadow 0.4s ease,
        border-top-color 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Línea conectora vertical */
.column::before {
    content: '';
    position: absolute;
    top: -39px;
    left: calc(50% - 1px);
    width: 0;
    height: 36px;
    border-left: 1px dashed var(--line-color);
    transition: border-color 0.3s ease;
}

/* --- EFECTO HOVER: ELEVACIÓN DE LA FICHA --- */
.column:hover {
    top: -10px;
    /* Se eleva 15px de forma fluida */
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

/* --- COLORES DINÁMICOS POR SECCIÓN Y HOVER--- */

.layer-1 .column:hover {
    border-top-color: var(--primary-dark);
}

.layer-1 .column .column-icon,
.layer-1 .column:hover .column-icon {
    color: var(--primary-dark);
}

.layer-1 .column:hover .column-kicker {
    background-color: var(--primary-dark);
    color: white;
    border-color: var(--primary-dark);
}

.layer-2 .column:hover {
    border-top-color: var(--secondary-slate);
}

.layer-2 .column .column-icon,
.layer-2 .column:hover .column-icon {
    color: var(--secondary-slate);
}

.layer-2 .column:hover .column-kicker {
    background-color: var(--secondary-slate);
    color: white;
    border-color: var(--secondary-slate);
}

.layer-3 .column:hover {
    border-top-color: var(--accent-gold);
}

.layer-3 .column .column-icon,
.layer-3 .column:hover .column-icon {
    color: var(--accent-gold);
}

.layer-3 .column:hover .column-kicker {
    background-color: var(--accent-gold);
    color: white;
    border-color: var(--accent-gold);
}

/* --- ELEMENTOS INTERNOS --- */
.column-icon {
    font-size: 28px;
    color: #94a3b8;
    margin-bottom: 20px;
    display: block;
    transition: color 0.4s ease, transform 0.4s ease;
}

.column:hover .column-icon {
    transform: scale(1.1);
    /* El icono crece sutilmente */
}

.ahc-col-title {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--primary-dark);
    margin: 0 0 20px 0;
    min-height: 40px;
}

.column-kicker {
    margin-top: auto;
    width: 24px;
    height: 24px;
    background: var(--bg-light);
    border: 1px solid var(--line-color);
    border-radius: 50%;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--secondary-slate);
    transition: all 0.4s ease;
}

/* --- TIEMPOS DE LA CASCADA --- */
.is-visible .layer-1 .arrow-box {
    animation-delay: 0s;
}

.is-visible .layer-1 .column:nth-child(1) {
    animation-delay: calc(var(--stagger) * 1);
}

.is-visible .layer-1 .column:nth-child(2) {
    animation-delay: calc(var(--stagger) * 2);
}

.layer-1 .column:nth-child(3) {
    animation-delay: calc(var(--stagger) * 3);
}

.is-visible .layer-2 .arrow-box {
    animation-delay: calc(var(--stagger) * 4);
}

.is-visible .layer-2 .column:nth-child(1) {
    animation-delay: calc(var(--stagger) * 5);
}

.layer-3 .arrow-box {
    animation-delay: calc(var(--stagger) * 6);
}

.is-visible .layer-3 .column:nth-child(1) {
    animation-delay: calc(var(--stagger) * 7);
}

.is-visible .layer-3 .column:nth-child(2) {
    animation-delay: calc(var(--stagger) * 8);
}

@media (max-width: 1024px) {
    .main-row {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .layer-1,
    .layer-2,
    .layer-3 {
        grid-column: span 1;
    }

    /* .column::before {
        display: none;
    } */

    .arrow-line {
        /* clip-path: none; */
        padding-right: 0;
    }

    .ahc-col-title {
        font-size: 0.85rem;
    }
}