/* ============================================================
   proyectos.css — Sección Proyectos Destacados
   J&D ELECTRO COOLING
   ============================================================ */

#proyectos {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.proyectos__inner {
    max-width: var(--container-max);
    margin: 0 auto;
}

/* ── FILTROS ────────────────────────────────────────────────── */
.proyectos__filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 40px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 0;
}

.proyectos__filter {
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    color: var(--text-muted);
    background: transparent;
    border: none;
    padding: 14px 20px;
    cursor: pointer;
    position: relative;
    transition: color var(--transition-fast);
}

.proyectos__filter::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    background: var(--color-red);
    transform: scaleX(0);
    transition: transform var(--transition-fast);
}

.proyectos__filter:hover { color: var(--text-primary); }
.proyectos__filter.is-active { color: var(--color-gold-text); }
.proyectos__filter.is-active::after { transform: scaleX(1); }

/* ── GRID ASIMÉTRICO ────────────────────────────────────────── */
.proyectos__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 16px;
    margin-top: 32px;
}

/* PROJECT CARD BASE */
/* REACT: {projects.map(p => <ProjectCard key={p.id} {...p} />)} */
.project-card {
    background: var(--bg-dark);
    border-radius: 14px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 240px;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Gradiente oscuro en la parte inferior (navy) para legibilidad del texto */
.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(7, 20, 42, 0.94) 0%, rgba(7, 20, 42, 0.78) 28%, rgba(7, 20, 42, 0.30) 58%, transparent 88%);
    z-index: 1;
}

/* Acento oro inferior que aparece en hover (look premium, no genérico) */
.project-card::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 3px;
    background: var(--color-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
    z-index: 3;
}

.project-card:hover::after {
    transform: scaleX(1);
}

/* Fondo visual por categoría */
.project-card__bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0A1628, #1a2d54);
    z-index: 0;
}

/* Patrón de puntos */
.project-card__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 20px 20px;
}

/* ── IMAGEN / PLACEHOLDER ───────────────────────────────────── */
.project-card__img-wrap {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.project-card__placeholder,
.project-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-card__placeholder,
.project-card:hover .project-card__img {
    transform: scale(1.04);
}

/* Card principal destacada */
.project-card--featured {
    grid-row: 1 / 3;
    min-height: 460px;
}

.project-card__content {
    position: relative;
    z-index: 2;
    padding: 28px 28px 28px;
}

.project-card__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}

.project-card__cat {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    border-radius: 999px;
    font-family: var(--font-heading);
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.92);
    color: var(--color-navy);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
}

.project-card__cert {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 12px;
    border-radius: 999px;
    font-family: var(--font-heading);
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    background: linear-gradient(135deg, rgba(22, 101, 52, 0.92), rgba(21, 128, 61, 0.92));
    color: #fff;
}

.project-card__name {
    font-family: var(--font-heading);
    font-size: 1.7rem;
    font-weight: 800;
    text-transform: uppercase;
    color: #fff;
    line-height: 1.05;
    margin-bottom: 8px;
    letter-spacing: 0.02em;
}

.project-card--featured .project-card__name {
    font-size: 2.6rem;
}

.project-card__location {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.55);
}

.project-card__location svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    color: var(--color-gold);
}

.project-card__systems {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.project-card__system {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border: 1px solid rgba(198, 152, 43, 0.55);
    border-radius: 999px;
    background: rgba(198, 152, 43, 0.12);
    font-family: var(--font-heading);
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    color: var(--color-gold);
}

/* ── CTA HOVER ──────────────────────────────────────────────── */
.project-card__cta {
    display: inline-block;
    margin-top: 14px;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-gold);
    opacity: 0;
    transform: translateY(6px);
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.project-card:hover .project-card__cta {
    opacity: 1;
    transform: translateY(0);
}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
    #proyectos {
        padding: var(--section-padding-sm);
    }

    .proyectos__grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
    }

    .project-card--featured {
        grid-column: 1 / -1;
        grid-row: auto;
        min-height: 320px;
    }

    .project-card__name {
        font-size: 1.5rem;
    }

    .project-card--featured .project-card__name {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .proyectos__grid {
        grid-template-columns: 1fr;
    }

    .project-card--featured {
        min-height: 260px;
    }

    .project-card__name {
        font-size: 1.4rem;
    }

    .project-card--featured .project-card__name {
        font-size: 1.8rem;
    }

    .project-card__cta {
        opacity: 1;
        transform: none;
    }
}