/* ========================================
   Concrete Work Section
   ======================================== */

.concrete {
    position: relative;
    overflow: hidden;
    width: 100%;
    background: var(--color-primary);
    isolation: isolate; /* Create independent stacking context */
}

.concrete__bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: 0;
}

.concrete__bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 25, 47, 0.95) 0%, rgba(10, 25, 47, 0.85) 100%);
    z-index: 1;
}

/* Intro Section */
.concrete__intro {
    position: relative;
    z-index: 2;
    max-width: 900px;
    text-align: center;
    padding: var(--space-3xl) var(--space-lg) var(--space-xl);
    margin: 0 auto;
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

.concrete__intro.visible {
    opacity: 1;
    transform: translateY(0);
}

.concrete__icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    color: var(--color-white);
    backdrop-filter: blur(10px);
}

.concrete__icon svg {
    width: 40px;
    height: 40px;
    stroke-width: 1.5;
}

.concrete__tag {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.concrete__title {
    font-family: var(--font-display);
    font-size: clamp(var(--text-3xl), 5vw, var(--text-4xl));
    color: var(--color-white);
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.concrete__text {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--text-lg);
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto;
}

/* Services Section */
.concrete__services {
    position: relative;
    z-index: 2;
    padding: var(--space-2xl) var(--space-lg) var(--space-3xl);
}

.concrete__services-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    color: var(--color-white);
    text-align: center;
    margin-bottom: var(--space-xl);
}

.concrete__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.concrete__service {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    opacity: 1;
    transform: none;
}

.concrete__service:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.concrete__service--fullwidth {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    align-items: stretch;
}

.concrete__service-image {
    position: relative;
    width: 100%;
    height: 200px;
    background: rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.concrete__service--fullwidth .concrete__service-image {
    height: 100%;
    min-height: 200px;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.concrete__service--fullwidth .concrete__service-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.concrete__service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.concrete__service-content {
    padding: var(--space-lg);
}

.concrete__service-title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    color: var(--color-white);
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.concrete__service-text {
    color: rgba(255, 255, 255, 0.75);
    font-size: var(--text-sm);
    line-height: 1.7;
}

/* ========================================
   Concrete Horizontal Scroll Section
   (Integrado dentro de .concrete)
   ======================================== */

.concrete__horizontal-wrapper {
    position: relative;
    height: 160vh;
    overflow: hidden;
}

.concrete__horizontal-track {
    display: flex;
    height: 100%;
    width: fit-content;
    will-change: transform;
}

.concrete__horizontal-panel {
    min-width: 100vw;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    flex-shrink: 0;
    box-sizing: border-box;
}

/* Panel de servicios */
.concrete__horizontal-panel--services {
    min-width: 100vw;
    padding: var(--space-xl) var(--space-2xl);
    align-items: center;
}

.concrete__horizontal-panel--services .concrete__services {
    padding: 0;
    width: 100%;
    max-width: 1200px;
}

.concrete__horizontal-panel--services .concrete__services-title {
    margin-bottom: var(--space-xl);
    font-size: var(--text-2xl);
}

/* Grid de servicios con iconos */
.concrete__services-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-md);
}

.concrete__service-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-md);
    text-align: center;
    transition: all var(--transition-base);
}

.concrete__service-card:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-5px);
}

.concrete__service-icon {
    width: 64px;
    height: 64px;
    background: rgba(212, 175, 55, 0.15);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
}

.concrete__service-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
    stroke-width: 1.5;
}

.concrete__service-card h4 {
    font-family: var(--font-display);
    font-size: var(--text-base);
    color: var(--color-white);
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.concrete__service-card p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
    margin: 0;
}

@media (max-width: 1024px) {
    .concrete__services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .concrete__services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


.concrete__horizontal-content {
    max-width: 800px;
    color: var(--color-white);
}

/* Panel Our Commitment - Centrar en la posición visible del scroll */
.concrete__horizontal-panel--commitment {
    align-items: center;
    padding-top: 80vh;
}

.concrete__horizontal-panel--commitment .concrete__horizontal-content {
    margin-bottom: 0;
}

/* Commitment Cards Grid */
.concrete__commitment-content {
    max-width: 1100px;
    color: var(--color-white);
    text-align: center;
}

.concrete__commitment-content h2 {
    font-family: var(--font-display);
    font-size: clamp(var(--text-2xl), 4vw, var(--text-3xl));
    color: var(--color-white);
    margin-bottom: var(--space-xl);
    line-height: 1.2;
}

.concrete__commitment-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.concrete__commitment-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-md);
    text-align: center;
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
}

.concrete__commitment-card:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-5px);
}

.concrete__commitment-icon {
    width: 56px;
    height: 56px;
    background: rgba(212, 175, 55, 0.15);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
}

.concrete__commitment-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-accent);
    stroke-width: 1.5;
}

.concrete__commitment-card h4 {
    font-family: var(--font-display);
    font-size: var(--text-base);
    color: var(--color-white);
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.concrete__commitment-card p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
    margin: 0;
}

@media (max-width: 1024px) {
    .concrete__commitment-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .concrete__commitment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Panel CTA - Misma altura que commitment */
.concrete__horizontal-panel--cta {
    align-items: center;
    padding-top: 80vh;
}

.concrete__horizontal-content--centered {
    text-align: center;
}

.concrete__horizontal-panel h2 {
    font-family: var(--font-display);
    font-size: clamp(var(--text-2xl), 4vw, var(--text-3xl));
    color: var(--color-white);
    margin-bottom: var(--space-xl);
    line-height: 1.2;
}

.concrete__horizontal-panel p {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-xl);
}

.concrete__horizontal-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.concrete__horizontal-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    font-size: var(--text-lg);
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

.concrete__horizontal-list li svg {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    color: var(--color-accent);
    margin-top: 4px;
}

@media (max-width: 768px) {
    .concrete__horizontal-panel {
        padding: var(--space-xl) var(--space-lg);
    }

    .concrete__horizontal-panel h2 {
        font-size: var(--text-xl);
    }

    .concrete__horizontal-list li {
        font-size: var(--text-base);
    }

    .concrete__horizontal-panel p {
        font-size: var(--text-base);
    }
}

/* ========================================
   Horizontal Scroll Wrapper
   ======================================== */
.horizontal-wrapper {
    position: relative;
    overflow: hidden;
    background: var(--color-primary);
}

.horizontal-sections {
    display: flex;
    width: fit-content;
    will-change: transform;
}

.horizontal-panel {
    width: 100vw;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: var(--space-3xl) var(--space-2xl);
}

.horizontal-panel__content {
    max-width: 800px;
    color: var(--color-white);
}

.horizontal-panel--cta .horizontal-panel__content {
    text-align: center;
}

.horizontal-panel h2 {
    font-family: var(--font-display);
    font-size: clamp(var(--text-2xl), 4vw, var(--text-3xl));
    color: var(--color-white);
    margin-bottom: var(--space-xl);
    line-height: 1.2;
}

.horizontal-panel p {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-xl);
}

.horizontal-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.horizontal-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    font-size: var(--text-lg);
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

.horizontal-list li svg {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    color: var(--color-accent);
    margin-top: 4px;
}

@media (max-width: 768px) {
    .horizontal-panel {
        padding: var(--space-2xl) var(--space-lg);
    }
    
    .horizontal-panel h2 {
        font-size: var(--text-xl);
    }
    
    .horizontal-list li {
        font-size: var(--text-base);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .concrete__intro {
        padding: var(--space-2xl) var(--space-lg) var(--space-lg);
    }
    
    .concrete__grid {
        grid-template-columns: 1fr;
    }
    
    .concrete__service--fullwidth {
        grid-template-columns: 1fr;
    }
    
    .concrete__service-image {
        height: 180px;
    }
    
    .concrete__service--fullwidth .concrete__service-image {
        height: 200px;
    }
    
    .concrete__why-choose-content,
    .concrete__why-choose-cta {
        padding: var(--space-2xl) var(--space-lg);
    }
    
    .concrete__why-choose-title {
        font-size: var(--text-xl);
    }
    
    .concrete__why-choose-item {
        font-size: var(--text-base);
    }
    
    .concrete__why-choose-text {
        font-size: var(--text-base);
    }
}