/* ====================================================================================
   PREMIUM PRODUCT PAGE STYLES (2026 B2B INDUSTRIAL REDESIGN)
   ==================================================================================== */
body.premium-product {
    --steel-gray: #4a5568;
    --charcoal: #2d3748;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
    --section-padding: 140px;
}

/* --- General Section Styling --- */
.premium-section {
    padding: var(--section-padding) 0;
    position: relative;
}

.premium-section:nth-child(even) {
    background-color: var(--secondary-color);
}

/* --- 1. Premium Hero --- */
.hero-premium {
    padding: 180px 0 120px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2a358c 100%);
    color: var(--white-color);
    overflow: hidden;
    position: relative;
}

.hero-premium::before {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: url('../images/hero-bg-2.webp') no-repeat center center / cover;
    opacity: 0.15;
    z-index: 1;
}

.hero-premium .container {
    position: relative;
    z-index: 2;
}

.hero-premium h1 {
    color: var(--white-color) !important;
    font-size: clamp(2.5rem, 5vw, 4rem) !important;
    line-height: 1.1;
    margin-bottom: 25px;
}

.hero-premium .lead-text {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 600px;
}

.trust-badge-list {
    display: flex;
    gap: 20px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.trust-badge {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* --- 2. Intro --- */
.product-intro {
    text-align: center;
}

.product-intro .lead-text {
    font-size: 1.2rem;
    color: var(--text-color);
    max-width: 800px;
    margin: 0 auto 30px;
}

/* --- 3. Key Advantages --- */
.advantage-card {
    background: var(--white-color);
    border: 1px solid var(--divider-color);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    transition: var(--transition-smooth);
    height: 100%;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-color);
}

.advantage-card .icon-box {
    width: 70px;
    height: 70px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: var(--accent-color);
    font-size: 28px;
    transition: var(--transition-smooth);
}

.advantage-card:hover .icon-box {
    background: var(--accent-color);
    color: var(--white-color);
}

/* --- 4. Specifications Table --- */
.table-premium {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--divider-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    font-family: 'Onest', sans-serif;
}

.table-premium th {
    background: var(--primary-color);
    color: var(--white-color);
    padding: 20px;
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 1px;
}

.table-premium td {
    padding: 18px 20px;
    border-bottom: 1px solid var(--divider-color);
    color: var(--text-color);
    font-size: 15px;
}

.table-premium tr:last-child td {
    border-bottom: none;
}

.table-premium tr:nth-child(even) {
    background: var(--secondary-color);
}

.spec-label {
    font-weight: 700;
    color: var(--primary-color);
    width: 30%;
}

/* Technical mono font for values */
.spec-value {
    font-family: 'Courier New', Courier, monospace;
    font-weight: 600;
}

/* --- 5. Surface Options --- */
.surface-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--white-color);
    border: 1px solid var(--divider-color);
    transition: var(--transition-smooth);
    cursor: pointer;
    height: 100%;
}

.surface-card:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-hover);
}

.surface-img-wrap {
    height: 200px;
    overflow: hidden;
}

.surface-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.surface-card:hover .surface-img-wrap img {
    transform: scale(1.1);
}

.surface-content {
    padding: 25px;
}

.surface-content h3 {
    font-size: 20px !important;
    margin-bottom: 10px;
}

/* --- 6. Applications Gallery --- */
.app-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 300px;
    box-shadow: var(--shadow-sm);
}

.app-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.app-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(29, 36, 88, 0.9) 0%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    color: var(--white-color);
    transition: var(--transition-smooth);
}

.app-card:hover img {
    transform: scale(1.1);
}

.app-card:hover .app-overlay {
    background: linear-gradient(to top, rgba(131, 18, 18, 0.9) 0%, transparent 100%);
}

/* --- 7. Manufacturing Process --- */
.process-visual {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin: 50px 0;
    position: relative;
}

.step-indicator {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 2;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    color: var(--white-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-weight: 800;
    font-size: 20px;
    box-shadow: 0 0 0 8px var(--secondary-color);
}

/* --- 8. Comparison Table --- */
.table-compare {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 30px;
}

.table-compare th, .table-compare td {
    padding: 20px;
    border: 1px solid var(--divider-color);
    text-align: center;
}

.table-compare th {
    background: var(--primary-color);
    color: var(--white-color);
}

.compare-highlight {
    background: rgba(131, 18, 18, 0.05);
    font-weight: 700;
    color: var(--accent-color);
}

/* --- 9. Why Choose MIIPL --- */
.value-prop-content h2 {
    font-size: 36px !important;
    margin-bottom: 20px;
}

.expert-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent-color);
    color: var(--white-color);
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 15px;
}

/* --- 10. FAQ Premium --- */
.accordion-premium .accordion-item {
    border: none;
    background: var(--white-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: 15px;
    border-radius: var(--radius-md) !important;
}

.accordion-premium .accordion-button {
    background: var(--white-color) !important;
    color: var(--primary-color) !important;
    font-weight: 700 !important;
    border-bottom: 1px solid var(--divider-color);
}

.accordion-premium .accordion-button:not(.collapsed) {
    color: var(--accent-color) !important;
    background: var(--secondary-color) !important;
}

/* --- 11. Enquiry Form Glassmorphism --- */
.premium-form-container {
    background: var(--white-color);
    border-radius: var(--radius-lg);
    padding: 60px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
    border: 1px solid var(--divider-color);
}

.form-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: var(--transition-smooth);
}

.form-glass:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(131, 18, 18, 0.1);
}

.form-control-premium {
    border: none;
    background: transparent;
    font-weight: 500;
    color: var(--primary-color);
}

.form-control-premium:focus {
    box-shadow: none;
    outline: none;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .premium-section {
        padding: 80px 0;
    }
    .hero-premium {
        text-align: center;
        padding: 120px 0 80px;
    }
    .hero-premium .lead-text {
        margin: 0 auto 30px;
    }
    .trust-badge-list {
        justify-content: center;
    }
    .process-visual {
        flex-direction: column;
        gap: 40px;
    }
}