.demo-hero {
    padding: var(--section-padding-compact) 0;
    background: transparent;
    position: relative;
    overflow: hidden;
}

.demo-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    background: url("/images/hero-slider/Homepage_banner_Web_welding_cms_mainbanner_1x.webp") center/cover no-repeat;
    filter: saturate(0.85);
    z-index: 0;
}

.demo-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    background: linear-gradient(90deg, rgba(11, 15, 18, 0.88) 0%, rgba(11, 15, 18, 0.72) 55%, rgba(11, 15, 18, 0.58) 100%);
    z-index: 1;
}

.demo-hero .contact-form-block {
    position: relative;
    z-index: 2;
    background: transparent;
}

.demo-hero .contact-form-block > .container {
    padding-block: var(--section-padding-lg);
}

.demo-hero .contact-form-spacer,
.demo-hero .contact-form-content {
    display: none;
}

.demo-hero .contact-form-title {
    font-size: clamp(1.8rem, 3.8vw, 3rem);
    line-height: 1.1;
    margin-bottom: var(--spacing-4);
}

.demo-hero .contact-form-subtitle {
    color: var(--color-text-primary-opacity-85);
    font-size: var(--font-size-lg);
    line-height: 1.55;
}

.demo-hero .contact-form-note {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
}

.demo-hero .contact-form-features {
    margin-top: var(--spacing-8);
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-4);
}

.demo-hero .feature-item {
    min-height: 90px;
    background: rgba(var(--color-bg-secondary-rgb), 0.82);
}

.demo-hero .contact-form-wrapper {
    padding: var(--spacing-10) var(--spacing-8);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: rgba(var(--color-bg-tertiary-rgb), 0.92);
}

.demo-hero .contact-form-form-header {
    margin-bottom: var(--spacing-4);
}

.demo-hero .contact-form-form-title {
    margin-bottom: 0.25rem;
    color: #fff;
    font-size: var(--font-size-h3);
    font-weight: var(--font-weight-semibold);
}

.demo-hero .contact-form-form-subtitle {
    margin: 0;
    color: rgba(255, 255, 255, 0.88);
    font-size: var(--font-size-sm);
}

.demo-hall-overview,
.demo-hall-remote,
.demo-hall-models {
    padding: var(--section-padding-compact) 0;
}

.demo-hall-overview--spaced {
    padding: var(--section-padding-lg) 0;
}

.demo-hall-models--spaced {
    padding-bottom: var(--section-padding-lg);
}

.demo-hall-card {
    height: 100%;
    padding: var(--spacing-8);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-engineering);
}

.demo-hall-card h2 {
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-h4);
    color: var(--color-text-primary);
}

.demo-hall-card ul {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--color-text-secondary);
}

.demo-hall-card li + li {
    margin-top: 0.6rem;
}

.demo-hall-section-title {
    margin-bottom: var(--spacing-8);
    color: var(--color-text-primary);
    font-size: var(--font-size-h3);
}

.demo-hall-models .demo-hall-section-title,
.demo-hall-models .row.g-4 {
    display: none;
}

.demo-hall-placeholder-title {
    margin-bottom: var(--spacing-8);
    color: var(--color-text-primary);
    font-size: var(--font-size-h3);
    text-align: center;
}

.demo-model-card {
    height: 100%;
    padding: var(--spacing-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-engineering);
    transition: var(--transition-base);
}

.demo-model-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-laser-sm);
}

.demo-model-card h3 {
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
}

.demo-model-card p {
    margin: 0;
    color: var(--color-text-secondary);
}

.demo-hall-remote__card {
    padding: var(--spacing-12);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
}

.remote-divider {
    width: 80px;
    height: 2px;
    margin-top: var(--spacing-4);
    margin-bottom: var(--spacing-8);
    background: var(--color-accent);
}

.remote-highlight {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    max-width: 800px;
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-8);
}

.remote-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-8);
}

.remote-card {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: var(--spacing-12);
    border-radius: var(--radius-engineering);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.remote-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-laser-sm);
    transform: translateY(-4px);
}

.remote-card h3 {
    margin-bottom: var(--spacing-4);
    color: var(--color-text-primary);
    font-size: var(--font-size-lg);
}

.remote-card h3::after {
    content: "";
    display: block;
    width: 40px;
    height: 2px;
    background: var(--color-accent);
    margin-top: var(--spacing-2);
}

.remote-card p {
    margin-bottom: var(--spacing-4);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.demo-hall-remote__card > h3 {
    margin-top: var(--spacing-8);
    margin-bottom: var(--spacing-4);
    color: var(--color-text-primary);
    font-size: var(--font-size-xl);
}

.presentation-item {
    position: relative;
    display: flex;
    gap: var(--spacing-4);
    padding: var(--spacing-8) 0;
}

.presentation-number {
    color: var(--color-accent);
    font-weight: var(--font-weight-semibold);
    min-width: 30px;
}

.presentation-item span:last-child {
    color: var(--color-text-secondary);
    line-height: var(--line-height-normal);
}

.presentation-item::after {
    content: "";
    position: absolute;
    left: 40px;
    right: 0;
    bottom: 0;
    height: 1px;
    background: var(--color-border);
    opacity: 0.4;
}

@media (max-width: 1200px) {
    .demo-hero .contact-form-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 991.98px) {
    .demo-hero .contact-form-block > .container {
        padding-block: var(--section-padding-md);
    }

    .demo-hero .contact-form-wrapper {
        margin-top: var(--spacing-4);
        padding: var(--spacing-8) var(--spacing-6);
    }

    .remote-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
}