/* ============================================
   Layout Optimization V2 - 2026
   Clean, consistent, professional B2B layout
   ============================================ */

/* === SECTION FOUNDATIONS === */
.section {
    padding: 5rem 0;
    position: relative;
}

.section-sm {
    padding: 3rem 0;
}

.section-lg {
    padding: 6rem 0;
}

/* Alternating section backgrounds */
.section-white { background: #fff; }
.section-light { background: var(--primary-light, #f0f4f8); }
.section-gray { background: var(--gray-50, #f9fafb); }
.section-dark { 
    background: var(--gray-900, #111827); 
    color: #fff;
}

/* Section title system */
.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent, #D4A843);
    margin-bottom: 1rem;
    position: relative;
}

.section-badge::after {
    content: '';
    display: block;
    width: 50px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary, #0f2b5b), var(--accent, #D4A843));
    margin: 0.75rem auto 0;
    border-radius: 1px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--gray-900, #111827);
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.section-dark .section-title {
    color: #fff;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--gray-500, #6b7280);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.section-dark .section-subtitle {
    color: rgba(255,255,255,0.7);
}

/* === HERO SECTION === */
.hero-section {
    position: relative;
    overflow: hidden;
}

.hero-section .carousel-item {
    height: 55vw;
    max-height: 650px;
    min-height: 400px;
}

.hero-caption {
    position: absolute;
    bottom: 15%;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    width: 90%;
    max-width: 800px;
    padding: 2.5rem;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.1);
}

.hero-caption h1,
.hero-caption h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 1rem;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero-caption p {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 1.5rem;
}

.hero-trust {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.hero-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255,255,255,0.9);
    font-size: 0.9rem;
    font-weight: 500;
    background: rgba(255,255,255,0.1);
    padding: 0.4rem 1rem;
    border-radius: 25px;
}

.hero-trust-item i {
    color: var(--accent, #D4A843);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* === CATEGORY CARDS === */
.category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.category-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    height: 320px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}

.category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.category-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, 
        rgba(15,43,91,0.2) 0%, 
        rgba(10,22,40,0.85) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    transition: background 0.4s ease;
}

.category-card:hover .category-overlay {
    background: linear-gradient(180deg, 
        rgba(212,168,67,0.2) 0%, 
        rgba(10,22,40,0.9) 100%);
}

.category-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(212, 168, 67, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: #fff;
    box-shadow: 0 4px 15px rgba(212,168,67,0.4);
    transition: all 0.3s ease;
}

.category-card:hover .category-icon {
    background: var(--accent, #D4A843);
    transform: scale(1.1);
}

.category-info h3 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
}

.category-info p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

.category-count {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent, #D4A843);
    color: #fff;
    padding: 0.35rem 0.9rem;
    border-radius: 25px;
    font-size: 0.8rem;
    font-weight: 700;
    backdrop-filter: blur(4px);
}

/* === PRODUCT CARDS === */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.product-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.04);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.product-card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #f8f9fa, #eef0f3);
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 5;
    padding: 0.3rem 0.8rem;
    border-radius: 25px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.badge-hot { background: linear-gradient(135deg, #ef4444, #dc2626); }
.badge-popular { background: linear-gradient(135deg, var(--accent, #D4A843), #b8922e); }
.badge-best { background: linear-gradient(135deg, var(--primary, #0f2b5b), #1a3a6b); }

.product-hp-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 5;
    background: rgba(15, 43, 91, 0.9);
    color: var(--accent, #D4A843);
    padding: 0.3rem 0.7rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 800;
    font-family: 'Roboto', monospace;
    backdrop-filter: blur(4px);
}

.product-card-actions {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.product-card:hover .product-card-actions {
    opacity: 1;
    transform: translateY(0);
}

.product-card-actions .btn {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    border-radius: 8px;
}

.product-card-body {
    padding: 1.25rem;
}

.product-card-body h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--gray-900, #111827);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-body h3 a {
    color: inherit;
    text-decoration: none;
}

.product-card-body h3 a:hover {
    color: var(--primary, #0f2b5b);
}

.product-model {
    font-size: 0.85rem;
    color: var(--gray-500, #6b7280);
    font-weight: 500;
}

/* === HP RANGE CARDS === */
.hp-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.hp-card {
    background: linear-gradient(135deg, #fff 0%, #f8f9fb 100%);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.hp-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary, #0f2b5b), var(--accent, #D4A843));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.hp-card:hover::before {
    transform: scaleX(1);
}

.hp-card:hover {
    border-color: var(--accent, #D4A843);
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.hp-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary, #0f2b5b), var(--accent, #D4A843));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.hp-unit {
    font-size: 0.85rem;
    color: var(--accent, #D4A843);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.75rem;
}

.hp-label {
    font-size: 0.9rem;
    color: var(--gray-500, #6b7280);
}

.hp-card:hover .hp-number {
    -webkit-text-fill-color: var(--accent, #D4A843);
}

/* === FEATURE BOXES === */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.feature-box {
    background: #fff;
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(0,0,0,0.04);
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary, #0f2b5b), #1a3a6b);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    font-size: 1.5rem;
    color: #fff;
    box-shadow: 0 4px 15px rgba(15,43,91,0.2);
}

.feature-box h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--gray-900, #111827);
}

.feature-box p {
    font-size: 0.9rem;
    color: var(--gray-500, #6b7280);
    line-height: 1.6;
    margin: 0;
}

/* === STATS === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    padding-top: 3rem;
    border-top: 1px solid var(--gray-200, #e5e7eb);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary, #0f2b5b), var(--accent, #D4A843));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-500, #6b7280);
    font-weight: 500;
}

/* === TESTIMONIALS === */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.testimonial-card {
    background: #fff;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.04);
    transition: all 0.3s ease;
    position: relative;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary, #0f2b5b), var(--accent, #D4A843));
    border-radius: 16px 16px 0 0;
}

.quote-icon {
    color: var(--accent, #D4A843);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.stars {
    color: var(--accent, #D4A843);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.quote-text {
    font-size: 0.95rem;
    color: var(--gray-700, #374151);
    line-height: 1.7;
    font-style: italic;
    margin-bottom: 1.5rem;
}

.author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary, #0f2b5b), var(--accent, #D4A843));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.author-info h6 {
    font-weight: 700;
    margin-bottom: 0.15rem;
    font-size: 0.95rem;
}

.author-info span {
    font-size: 0.8rem;
    color: var(--gray-500, #6b7280);
}

/* === TRUST BADGES === */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255,255,255,0.2);
}

.trust-item {
    text-align: center;
}

.trust-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary, #0f2b5b), #1a3a6b);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.75rem;
    font-size: 1.5rem;
    color: #fff;
    box-shadow: 0 4px 15px rgba(15,43,91,0.2);
    transition: all 0.3s ease;
}

.trust-item:hover .trust-icon {
    background: linear-gradient(135deg, var(--accent, #D4A843), #b8922e);
    transform: scale(1.1);
}

.trust-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--gray-700, #374151);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* === CERTIFICATION GALLERY === */
.cert-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.cert-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border: 2px solid rgba(212,168,67,0.3);
    transition: all 0.3s ease;
}

.cert-item:hover {
    border-color: var(--accent, #D4A843);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.cert-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.cert-item:hover img {
    transform: scale(1.05);
}

.cert-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15,43,91,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cert-item:hover .cert-overlay {
    opacity: 1;
}

.cert-overlay i {
    font-size: 2rem;
    color: #fff;
}

/* === NEWSLETTER === */
.newsletter-section {
    padding: 2.5rem 0;
    background: #e8eef5;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.newsletter-form input:focus {
    border-color: var(--primary, #0f2b5b);
}

.newsletter-form button {
    padding: 0.75rem 1.5rem;
    background: var(--accent, #D4A843);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.3s ease;
    white-space: nowrap;
}

.newsletter-form button:hover {
    background: #b8922e;
}

/* === PARTNER LOGOS === */
.partner-section {
    padding: 3rem 0;
    background: #fff;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.partner-track {
    display: flex;
    gap: 3rem;
    animation: partner-scroll 30s linear infinite;
}

.partner-item {
    flex-shrink: 0;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.partner-item:hover {
    opacity: 1;
}

.partner-item img {
    height: 40px;
    width: auto;
}

@keyframes partner-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* === CTA SECTION === */
.cta-section {
    padding: 4rem 0;
    background: var(--gray-900, #111827);
    text-align: center;
    color: #fff;
}

.cta-section h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.cta-section p {
    color: var(--gray-400, #9ca3af);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* === BUTTONS === */
.btn-primary {
    background: var(--primary, #0f2b5b);
    color: #fff;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    background: #1a3a6b;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(15,43,91,0.3);
}

.btn-accent {
    background: var(--accent, #D4A843);
    color: #fff;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-accent:hover {
    background: #b8922e;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(212,168,67,0.3);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.4);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
    transform: translateY(-2px);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary, #0f2b5b);
    border: 2px solid var(--primary, #0f2b5b);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline-primary:hover {
    background: var(--primary, #0f2b5b);
    color: #fff;
    transform: translateY(-2px);
}

/* === RESPONSIVE === */
@media (max-width: 1199.98px) {
    .product-grid { grid-template-columns: repeat(3, 1fr); }
    .hp-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
    .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .cert-gallery { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 991.98px) {
    .section { padding: 4rem 0; }
    .section-title { font-size: 1.8rem; }
    
    .hero-section .carousel-item { height: 50vw; max-height: 500px; }
    .hero-caption h1, .hero-caption h2 { font-size: 2rem; }
    .hero-caption p { font-size: 1rem; }
    
    .category-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
    .category-card { height: 250px; }
    
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767.98px) {
    .section { padding: 3rem 0; }
    .section-header { margin-bottom: 2.5rem; }
    .section-title { font-size: 1.5rem; }
    .section-subtitle { font-size: 0.95rem; }
    
    .hero-section .carousel-item { height: 60vw; max-height: 400px; }
    .hero-caption { padding: 1.5rem; bottom: 10%; }
    .hero-caption h1, .hero-caption h2 { font-size: 1.5rem; }
    .hero-caption p { font-size: 0.9rem; }
    .hero-trust { gap: 0.75rem; }
    .hero-trust-item { font-size: 0.8rem; padding: 0.3rem 0.75rem; }
    
    .category-grid { grid-template-columns: 1fr; }
    .category-card { height: 200px; }
    
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .product-card-body { padding: 1rem; }
    .product-card-body h3 { font-size: 0.9rem; }
    
    .hp-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .hp-card { padding: 1.5rem; }
    .hp-number { font-size: 2rem; }
    
    .feature-grid { grid-template-columns: 1fr; }
    .feature-box { padding: 1.5rem; }
    
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .stat-number { font-size: 2rem; }
    
    .testimonial-grid { grid-template-columns: 1fr; }
    
    .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    
    .cert-gallery { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .cert-item img { height: 150px; }
    
    .newsletter-form { flex-direction: column; }
    
    .cta-section h2 { font-size: 1.5rem; }
    .cta-actions { flex-direction: column; align-items: center; }
}

@media (max-width: 575.98px) {
    .section { padding: 2.5rem 0; }
    
    .hero-section .carousel-item { height: 70vw; max-height: 350px; }
    .hero-caption { padding: 1rem; }
    .hero-caption h1, .hero-caption h2 { font-size: 1.25rem; }
    .hero-trust { display: none; }
    
    .category-card { height: 180px; }
    .category-info h3 { font-size: 1.2rem; }
    
    .product-grid { grid-template-columns: 1fr; }
    
    .hp-grid { grid-template-columns: repeat(2, 1fr); }
    
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-number { font-size: 1.8rem; }
}

/* === ANIMATIONS === */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* === UTILITY === */
.text-center { text-align: center; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

/* === PRODUCT SPECS === */
.product-specs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 0.75rem;
}

.spec-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.6rem;
    background: var(--gray-100, #f3f4f6);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--gray-600, #4b5563);
    font-weight: 500;
}

.spec-tag i {
    color: var(--accent, #D4A843);
    font-size: 0.7rem;
}

/* === PAGE BANNER === */
.page-banner {
    padding: 5rem 0 4rem;
    background-size: cover;
    background-position: center;
    position: relative;
}

.page-banner::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent, #D4A843), var(--primary, #0f2b5b), var(--accent, #D4A843));
}

/* === PRODUCT TABS === */
.product-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.product-tab {
    padding: 0.6rem 1.5rem;
    border: 2px solid var(--gray-200, #e5e7eb);
    border-radius: 30px;
    background: transparent;
    color: var(--gray-600, #4b5563);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-tab:hover {
    border-color: var(--primary, #0f2b5b);
    color: var(--primary, #0f2b5b);
}

.product-tab.active {
    background: var(--primary, #0f2b5b);
    border-color: var(--primary, #0f2b5b);
    color: #fff;
    box-shadow: 0 4px 15px rgba(15,43,91,0.25);
}

/* === CERT LIGHTBOX === */
.cert-lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.cert-lightbox.active {
    display: flex;
}

.cert-lightbox img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.2);
    border: none;
    color: #fff;
    font-size: 1.5rem;
    padding: 1rem;
    cursor: pointer;
    transition: background 0.3s ease;
}

.lightbox-nav:hover {
    background: rgba(255,255,255,0.4);
}

.lightbox-prev { left: 1rem; }
.lightbox-next { right: 1rem; }

/* === TYPING TEXT === */
.typing-text {
    display: inline;
    border-right: 3px solid var(--accent, #D4A843);
    animation: blink-caret 0.8s step-end infinite;
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--accent, #D4A843); }
}

/* === ME/MS UTILITIES === */
.me-1 { margin-right: 0.25rem; }
.me-2 { margin-right: 0.5rem; }
.me-3 { margin-right: 1rem; }
.ms-2 { margin-left: 0.5rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }
.py-5 { padding-top: 3rem; padding-bottom: 3rem; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1.5rem; }

/* === CONTAINER === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* === RESPONSIVE HELPERS === */
.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.justify-content-center { justify-content: center; }
.align-items-center { align-items: center; }
.text-center { text-align: center; }
.text-decoration-none { text-decoration: none; }