/* ===== Hero: Full-screen Industrial ===== */
.hero-carousel {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 560px;
    max-height: 800px;
    overflow: hidden;
}

.carousel-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.9s ease;
    z-index: 1;
    display: flex;
    align-items: center;
}

.carousel-slide.active { opacity: 1; z-index: 2; }

.slide-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    z-index: 0;
}

.slide-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(11,26,42,0.82) 0%, rgba(11,26,42,0.40) 100%);
    z-index: 1;
}

.hero-carousel .container {
    position: relative;
    z-index: 2;
    padding-top: 100px;
}

.slide-content {
    max-width: 1100px;
}

.slide-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--primary-light);
    background: rgba(0,151,167,0.2);
    border: 1px solid rgba(77,208,225,0.3);
    padding: 4px 14px;
    border-radius: 4px;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.slide-title {
    font-size: 3rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.15;
}

.slide-desc {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.75);
    margin-bottom: 32px;
    line-height: 1.7;
}

.slide-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.carousel-arrows {
    position: absolute;
    top: 50%; left: 0; right: 0;
    transform: translateY(-50%);
    z-index: 10;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    padding: 0 24px;
}

.carousel-arrow {
    pointer-events: auto;
    width: 48px; height: 48px;
    border-radius: 6px;
    background: rgba(255,255,255,0.06);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.12);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-arrow:hover {
    background: var(--primary);
    border-color: var(--primary);
}

.carousel-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 8px;
}

.carousel-dot {
    width: 32px; height: 3px;
    border-radius: 2px;
    background: rgba(255,255,255,0.25);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dot.active { background: var(--primary-light); width: 48px; }

/* ===== Stats Bar ===== */
.stats-bar {
    background: var(--bg-dark);
    padding: 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    padding: 36px 0;
}

.stat-cell {
    text-align: center;
    padding: 8px 16px;
    position: relative;
}

.stat-cell:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0; top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 32px;
    background: rgba(255,255,255,0.06);
}

.stat-num {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-light);
    margin-bottom: 2px;
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.45);
}

/* ===== Materials Showcase ===== */
.materials-showcase {
    padding: 80px 0;
    background: var(--bg-white);
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.material-card {
    background: var(--bg-gray);
    border-radius: var(--radius);
    padding: 32px 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.material-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: var(--primary);
    opacity: 0;
    transition: var(--transition);
}

.material-card:hover::before { opacity: 1; }
.material-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }

.material-icon {
    width: 76px; height: 76px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    border-radius: 14px;
    overflow: hidden;
}

.material-icon img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.material-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.material-card p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.material-badge-wrap {
    margin-top: 12px;
    display: flex;
    gap: 4px;
    justify-content: center;
    flex-wrap: wrap;
}

.material-card:nth-child(1) .badge {
    background: #fef3e2;
    color: #b45309;
    border: 1px solid #fed7aa;
}

.material-card:nth-child(2) .badge {
    background: #e0f2fe;
    color: #0369a1;
    border: 1px solid #bae6fd;
}

.material-card:nth-child(3) .badge {
    background: #dcfce7;
    color: #15803d;
    border: 1px solid #bbf7d0;
}

.material-card:nth-child(4) .badge {
    background: #f3e8ff;
    color: #7c3aed;
    border: 1px solid #e9d5ff;
}

/* ===== Products Section ===== */
.section-products {
    padding: 80px 0;
    background: var(--bg-gray);
}

.prod-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.prod-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.prod-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.prod-img {
    width: 100%;
    aspect-ratio: 1/1;
    overflow: hidden;
    background: var(--bg-gray);
}

.prod-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.prod-card:hover .prod-img img { transform: scale(1.08); }

.prod-info { padding: 16px 18px 20px; }

.prod-info h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.prod-meta {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}

.prod-info p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ===== About Section ===== */
.section-about {
    padding: 80px 0;
    background: #fff;
}

.about-layout {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: flex-start;
}

.about-visual {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.about-visual img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.about-content { 
    text-align: left;
}

.about-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 24px;
}

.about-highlight-item {
    text-align: center;
    padding: 24px 16px;
    background: var(--bg-gray);
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.about-highlight-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.about-highlight-item strong {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.about-highlight-item span {
    display: block;
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.5;
}

/* ===== Quality Assurance ===== */
.section-promises {
    padding: 80px 0;
    background: var(--bg-gray);
}

.promises-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.promise-card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
}

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

.promise-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.promise-card-top {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-bg) 0%, #fff 100%);
    position: relative;
}

.promise-card-top::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 2px;
    background: var(--primary);
    opacity: 0.3;
    border-radius: 1px;
}

.promise-icon {
    width: 52px;
    height: 52px;
    object-fit: contain;
}

.promise-fa-icon {
    font-size: 2.4rem;
    color: var(--primary);
}

.promise-card:nth-child(1) .promise-icon,
.promise-card:nth-child(1) .promise-fa-icon {
    animation: promiseFloat 3s ease-in-out infinite;
}

.promise-card:nth-child(2) .promise-icon,
.promise-card:nth-child(2) .promise-fa-icon {
    animation: promisePulse 2.5s ease-in-out infinite;
}

.promise-card:nth-child(3) .promise-icon,
.promise-card:nth-child(3) .promise-fa-icon {
    animation: promiseRotate 4s ease-in-out infinite;
}

.promise-card:nth-child(4) .promise-icon,
.promise-card:nth-child(4) .promise-fa-icon {
    animation: promiseDance 2s ease-in-out infinite;
}

.promise-card:nth-child(5) .promise-icon,
.promise-card:nth-child(5) .promise-fa-icon {
    animation: promiseBreathe 3s ease-in-out infinite;
}

@keyframes promiseFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

@keyframes promisePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

@keyframes promiseRotate {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-8deg); }
    75% { transform: rotate(8deg); }
}

@keyframes promiseDance {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    75% { transform: translateX(3px); }
}

@keyframes promiseBreathe {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.92); }
}

.promise-body {
    padding: 20px 18px 24px;
    text-align: center;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.promise-badge {
    display: inline-block;
    align-self: center;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--primary-dark);
    background: var(--primary-bg);
    padding: 3px 12px;
    border-radius: 4px;
    margin-bottom: 10px;
}

.promise-body h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.promise-body p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
    flex: 1;
}

/* ===== News Section ===== */
.section-news {
    padding: 80px 0;
    background: #fff;
}

.news-grid-home {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    width: 100%;
}

.news-grid-home > * {
    width: 100%;
    min-width: 0;
}

.news-card-link {
    width: 100% !important;
    display: block !important;
    text-decoration: none !important;
    color: inherit !important;
    height: 100% !important;
}

.news-card-home {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100% !important;
    min-width: 0;
}

.news-card-home:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.news-card-img {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--bg-gray);
    flex-shrink: 0;
}

.news-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card-home:hover .news-card-img img { transform: scale(1.06); }

.news-card-body {
    padding: 18px 20px 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.news-card-date {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-bottom: 6px;
}

.news-card-body h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 6px;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.news-card-body p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

/* ===== Contact Section ===== */
.section-contact-home {
    padding: 80px 0;
    background: var(--bg-dark-alt);
    color: #fff;
    border-top: 1px solid rgba(77,208,225,0.06);
}

.contact-home-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: stretch;
}

.contact-home-info h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.contact-home-info > p {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.55);
    margin-bottom: 28px;
}

.contact-home-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.contact-home-item:last-child { border-bottom: none; }

.contact-home-item .icon {
    width: 40px; height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,151,167,0.15);
    color: var(--primary-light);
    border-radius: 8px;
    font-size: 1rem;
    flex-shrink: 0;
}

.contact-home-item .text h4 {
    font-size: 0.78rem;
    font-weight: 600;
    color: rgba(255,255,255,0.4);
    margin-bottom: 1px;
}

.contact-home-item .text p {
    font-size: 0.95rem;
    font-weight: 600;
    color: #fff;
}

.contact-form-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-form-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
}

.contact-form-card .form-group { margin-bottom: 14px; }

.contact-form-card .form-input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    color: #fff;
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

.contact-form-card .form-input:focus {
    border-color: var(--primary-light);
    background: rgba(255,255,255,0.08);
}

.contact-form-card .form-input::placeholder { color: rgba(255,255,255,0.3); }

.contact-form-card .form-textarea { min-height: 100px; resize: vertical; }

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .materials-grid { grid-template-columns: repeat(2, 1fr); }
    .prod-grid { grid-template-columns: repeat(2, 1fr); }
    .promises-grid { grid-template-columns: repeat(3, 1fr); }
    .news-grid-home { grid-template-columns: repeat(2, 1fr); }
    .about-layout { grid-template-columns: 1fr; gap: 40px; }
    .contact-home-layout { grid-template-columns: 1fr; gap: 40px; }
    .slide-title { font-size: 2.2rem; }
    .hero-carousel { height: 80vh; min-height: 480px; }
}

@media (max-width: 768px) {
    .materials-grid { grid-template-columns: 1fr 1fr; }
    .prod-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .promises-grid { grid-template-columns: 1fr 1fr; }
    .news-grid-home { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .stat-cell:not(:last-child)::after { display: none; }
    .slide-title { font-size: 1.8rem; }
    .hero-carousel { height: 70vh; min-height: 420px; }
    .carousel-arrows { display: none; }
    .about-stats-row { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 480px) {
    .materials-grid { grid-template-columns: 1fr; }
    .prod-grid { grid-template-columns: 1fr; }
    .promises-grid { grid-template-columns: 1fr; }
}