/* ==========================================================================
   MODERN ARCHITECTURAL PRODUCT PAGE STYLESHEET
   Avenir Services Aluminium - Pure CSS3 & Animations (No NPM / No Node)
   ========================================================================== */

:root {
    --p-navy-950: #051532;
    --p-navy-900: #08224e;
    --p-navy-800: #0e4193;
    --p-navy-700: #1859c2;
    --p-orange-500: #ff5e14;
    --p-orange-600: #e04803;
    --p-orange-50: #fff7ed;
    --p-orange-glow: rgba(255, 94, 20, 0.28);
    --p-surface: #ffffff;
    --p-surface-muted: #f8fafc;
    --p-border: #e2e8f0;
    --p-text-main: #0f172a;
    --p-text-muted: #64748b;
    --p-shadow-sm: 0 2px 8px rgba(11, 26, 47, 0.05);
    --p-shadow-md: 0 10px 30px rgba(11, 26, 47, 0.08);
    --p-shadow-lg: 0 20px 45px rgba(11, 26, 47, 0.12);
    --p-radius-sm: 8px;
    --p-radius-md: 14px;
    --p-radius-lg: 20px;
    --p-radius-xl: 28px;
    --p-transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Container & Shell */
.prod-shell {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ==========================================================================
   1. HERO SECTION
   ========================================================================== */
.prod-hero {
    position: relative;
    background: radial-gradient(circle at 85% 15%, rgba(255, 94, 20, 0.12) 0%, transparent 45%),
                linear-gradient(135deg, var(--p-navy-950) 0%, var(--p-navy-900) 50%, var(--p-navy-800) 100%);
    color: #ffffff;
    padding: 8.5rem 0 5rem;
    overflow: hidden;
}

.prod-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.02' fill-rule='evenodd'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.6;
    pointer-events: none;
}

.prod-hero__grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

/* Breadcrumb */
.prod-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.82rem;
    color: #94a3b8;
    margin-bottom: 1.25rem;
}

.prod-breadcrumb a {
    color: #cbd5e1;
    text-decoration: none;
    transition: var(--p-transition);
}

.prod-breadcrumb a:hover {
    color: var(--p-orange-500);
}

.prod-breadcrumb i {
    font-size: 0.7rem;
    opacity: 0.6;
}

.prod-breadcrumb span.current {
    color: var(--p-orange-500);
    font-weight: 600;
}

/* Badge */
.prod-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 1rem;
    background: rgba(255, 94, 20, 0.15);
    border: 1px solid rgba(255, 94, 20, 0.35);
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 700;
    color: #ff8a4c;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1.25rem;
    backdrop-filter: blur(10px);
}

.prod-badge i {
    color: var(--p-orange-500);
}

/* Heading */
.prod-hero__title {
    font-family: 'Outfit', sans-serif;
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.18;
    color: #ffffff;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.prod-hero__title .text-accent {
    color: var(--p-orange-500);
    position: relative;
    display: inline-block;
}

.prod-hero__desc {
    font-size: 1.05rem;
    line-height: 1.7;
    color: #cbd5e1;
    margin-bottom: 2rem;
    max-width: 620px;
}

/* Stats */
.prod-hero__stats {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.prod-stat-item {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--p-radius-md);
    padding: 0.75rem 1.25rem;
    backdrop-filter: blur(8px);
}

.prod-stat-item__val {
    font-family: 'Outfit', sans-serif;
    font-size: 1.6rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.prod-stat-item__lbl {
    font-size: 0.75rem;
    font-weight: 600;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Actions */
.prod-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.prod-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding: 0.85rem 1.8rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--p-transition);
    cursor: pointer;
    border: none;
}

.prod-btn-primary {
    background: linear-gradient(135deg, var(--p-orange-500) 0%, var(--p-orange-600) 100%);
    color: #ffffff;
    box-shadow: 0 10px 25px var(--p-orange-glow);
}

.prod-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(255, 94, 20, 0.45);
    color: #ffffff;
}

.prod-btn-outline {
    background: rgba(255, 255, 255, 0.06);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
}

.prod-btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #ffffff;
    color: #ffffff;
    transform: translateY(-2px);
}

/* Hero Visual Card */
.prod-hero__visual {
    position: relative;
}

.prod-hero__card {
    position: relative;
    border-radius: var(--p-radius-xl);
    overflow: hidden;
    background: #08224e;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
    transition: transform 0.5s ease;
}

.prod-hero__card:hover {
    transform: translateY(-4px) scale(1.01);
}

.prod-hero__card img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    display: block;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.prod-hero__card:hover img {
    transform: scale(1.06);
}

.prod-hero__card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(7, 16, 32, 0.85) 100%);
    pointer-events: none;
}

/* Floating Glass Badges on Hero */
.prod-float-badge {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    background: rgba(7, 16, 32, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--p-radius-md);
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    color: #ffffff;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    z-index: 3;
    animation: floatUpDown 4s ease-in-out infinite;
}

.prod-float-badge i {
    font-size: 1.5rem;
    color: var(--p-orange-500);
}

.prod-float-badge__text strong {
    display: block;
    font-size: 0.88rem;
    font-weight: 700;
}

.prod-float-badge__text span {
    font-size: 0.75rem;
    color: #94a3b8;
}

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

/* ==========================================================================
   2. QUICK JUMP TABS BAR
   ========================================================================== */
.prod-tabs-bar {
    position: sticky;
    top: 72px;
    z-index: 80;
    background: #ffffff;
    border-bottom: 1px solid var(--p-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    padding: 0.85rem 0;
    transition: var(--p-transition);
}

.prod-tabs-scroll {
    display: flex;
    gap: 0.65rem;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 0.25rem 0;
}

.prod-tabs-scroll::-webkit-scrollbar {
    display: none;
}

.prod-tab-pill {
    padding: 0.55rem 1.25rem;
    background: var(--p-surface-muted);
    border: 1px solid var(--p-border);
    border-radius: 9999px;
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--p-text-muted);
    text-decoration: none;
    white-space: nowrap;
    transition: var(--p-transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.prod-tab-pill:hover,
.prod-tab-pill.active {
    background: var(--p-navy-900);
    border-color: var(--p-navy-900);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(7, 16, 32, 0.15);
}

.prod-tab-pill.active i {
    color: var(--p-orange-500);
}

/* ==========================================================================
   3. MODELS & SOLUTIONS SHOWCASE
   ========================================================================== */
.prod-section {
    padding: 5rem 0;
    background: var(--p-surface);
}

.prod-section.alt-bg {
    background: var(--p-surface-muted);
}

.prod-section-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 3.5rem;
}

.prod-section-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--p-orange-500);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 0.75rem;
}

.prod-section-title {
    font-family: 'Outfit', sans-serif;
    font-size: 2.3rem;
    font-weight: 800;
    color: var(--p-text-main);
    line-height: 1.25;
    margin-bottom: 0.85rem;
    letter-spacing: -0.01em;
}

.prod-section-desc {
    font-size: 1.05rem;
    color: var(--p-text-muted);
    line-height: 1.65;
}

/* Model Cards List */
.prod-models-list {
    display: flex;
    flex-direction: column;
    gap: 3.5rem;
}

.prod-model-card {
    background: #ffffff;
    border: 1px solid var(--p-border);
    border-radius: var(--p-radius-xl);
    overflow: hidden;
    box-shadow: var(--p-shadow-md);
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 0;
    transition: var(--p-transition);
}

.prod-model-card:hover {
    box-shadow: var(--p-shadow-lg);
    border-color: rgba(255, 94, 20, 0.35);
    transform: translateY(-4px);
}

.prod-model-card.reverse {
    grid-template-columns: 1.1fr 1fr;
}

.prod-model-card.reverse .prod-model-media {
    order: 2;
}

.prod-model-card.reverse .prod-model-body {
    order: 1;
}

/* Media Side */
.prod-model-media {
    position: relative;
    overflow: hidden;
    background: #08224e;
    min-height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.prod-model-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.prod-model-card:hover .prod-model-media img {
    transform: scale(1.05);
}

.prod-model-icon-box {
    width: 100%;
    height: 100%;
    min-height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0b1a2f 0%, #152c4d 100%);
}

.prod-model-icon-box i {
    font-size: 5.5rem;
    color: var(--p-orange-500);
    opacity: 0.9;
}

.prod-model-badge {
    position: absolute;
    top: 1.25rem;
    left: 1.25rem;
    background: rgba(7, 16, 32, 0.85);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 0.4rem 0.9rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    z-index: 2;
}

.prod-model-zoom-btn {
    position: absolute;
    bottom: 1.25rem;
    right: 1.25rem;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(7, 16, 32, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--p-transition);
    z-index: 2;
}

.prod-model-zoom-btn:hover {
    background: var(--p-orange-500);
    border-color: var(--p-orange-500);
    transform: scale(1.1);
}

/* Body Side */
.prod-model-body {
    padding: 2.75rem 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.prod-model-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--p-navy-950);
    margin-bottom: 0.85rem;
    line-height: 1.25;
}

.prod-model-desc {
    font-size: 0.98rem;
    line-height: 1.65;
    color: var(--p-text-muted);
    margin-bottom: 1.5rem;
}

/* Features checklist */
.prod-features-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1.75rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.prod-features-list li {
    font-size: 0.92rem;
    color: var(--p-text-main);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    line-height: 1.45;
}

.prod-features-list li i {
    color: var(--p-orange-500);
    font-size: 0.95rem;
    margin-top: 0.15rem;
    flex-shrink: 0;
}

/* Specs pills / table */
.prod-specs-grid {
    background: var(--p-surface-muted);
    border: 1px solid var(--p-border);
    border-radius: var(--p-radius-md);
    padding: 1rem 1.25rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem 1.25rem;
    margin-bottom: 1.75rem;
}

.prod-spec-row {
    display: flex;
    flex-direction: column;
}

.prod-spec-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--p-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.15rem;
}

.prod-spec-value {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--p-navy-900);
}

/* Model Action Button */
.prod-model-cta {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-top: auto;
    flex-wrap: wrap;
}

.prod-btn-sm {
    padding: 0.75rem 1.4rem;
    font-size: 0.88rem;
    border-radius: 12px;
}

/* ==========================================================================
   4. BENEFITS & STRENGTHS (4 PILARS)
   ========================================================================== */
.prod-benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.prod-benefit-card {
    background: #ffffff;
    border: 1px solid var(--p-border);
    border-radius: var(--p-radius-lg);
    padding: 2.25rem 1.75rem;
    transition: var(--p-transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--p-shadow-sm);
}

.prod-benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--p-orange-500), transparent);
    opacity: 0;
    transition: var(--p-transition);
}

.prod-benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--p-shadow-lg);
    border-color: rgba(255, 94, 20, 0.3);
}

.prod-benefit-card:hover::before {
    opacity: 1;
}

.prod-benefit-icon {
    width: 58px;
    height: 58px;
    border-radius: var(--p-radius-md);
    background: var(--p-orange-50);
    border: 1px solid rgba(255, 94, 20, 0.2);
    color: var(--p-orange-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.45rem;
    margin-bottom: 1.25rem;
    transition: var(--p-transition);
}

.prod-benefit-card:hover .prod-benefit-icon {
    background: var(--p-orange-500);
    color: #ffffff;
    transform: scale(1.08) rotate(4deg);
    box-shadow: 0 8px 20px var(--p-orange-glow);
}

.prod-benefit-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--p-navy-950);
    margin-bottom: 0.65rem;
}

.prod-benefit-desc {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--p-text-muted);
}

/* ==========================================================================
   5. WORKFLOW PROCESS STEPS
   ========================================================================== */
.prod-process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    position: relative;
}

.prod-process-step {
    background: #ffffff;
    border: 1px solid var(--p-border);
    border-radius: var(--p-radius-lg);
    padding: 2rem 1.5rem;
    position: relative;
    box-shadow: var(--p-shadow-sm);
    transition: var(--p-transition);
}

.prod-process-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--p-shadow-md);
    border-color: var(--p-orange-500);
}

.prod-step-num {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2rem;
    font-weight: 900;
    color: rgba(11, 26, 47, 0.08);
    line-height: 1;
    margin-bottom: 0.85rem;
    transition: var(--p-transition);
}

.prod-process-step:hover .prod-step-num {
    color: var(--p-orange-500);
}

.prod-step-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--p-navy-950);
    margin-bottom: 0.5rem;
}

.prod-step-desc {
    font-size: 0.88rem;
    color: var(--p-text-muted);
    line-height: 1.55;
}

/* ==========================================================================
   6. CROSS-NAVIGATION: OTHER PRODUCTS
   ========================================================================== */
.prod-others-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.prod-other-card {
    background: #ffffff;
    border: 1px solid var(--p-border);
    border-radius: var(--p-radius-lg);
    overflow: hidden;
    text-decoration: none;
    box-shadow: var(--p-shadow-sm);
    transition: var(--p-transition);
    display: flex;
    flex-direction: column;
}

.prod-other-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--p-shadow-lg);
    border-color: var(--p-orange-500);
}

.prod-other-media {
    height: 180px;
    overflow: hidden;
    background: #08224e;
    position: relative;
}

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

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

.prod-other-body {
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.prod-other-body h4 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--p-navy-950);
    margin: 0;
}

.prod-other-arrow {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--p-surface-muted);
    color: var(--p-navy-900);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    transition: var(--p-transition);
}

.prod-other-card:hover .prod-other-arrow {
    background: var(--p-orange-500);
    color: #ffffff;
    transform: translateX(4px);
}

/* ==========================================================================
   7. FAST QUOTE CTA BANNER
   ========================================================================== */
.prod-cta-banner {
    background: linear-gradient(135deg, var(--p-navy-950) 0%, var(--p-navy-900) 60%, var(--p-navy-800) 100%);
    border-radius: var(--p-radius-xl);
    padding: 4rem 3.5rem;
    color: #ffffff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(7, 16, 32, 0.35);
    margin: 2rem 0;
}

.prod-cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 94, 20, 0.25) 0%, transparent 70%);
    pointer-events: none;
}

.prod-cta-banner__grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.prod-cta-banner h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.25;
    margin-bottom: 0.75rem;
}

.prod-cta-banner p {
    font-size: 1.05rem;
    color: #cbd5e1;
    line-height: 1.65;
    margin: 0;
}

.prod-cta-banner__actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
}

.prod-cta-contact-row {
    display: flex;
    gap: 1.5rem;
    font-size: 0.88rem;
    color: #cbd5e1;
}

.prod-cta-contact-row a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    transition: var(--p-transition);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.prod-cta-contact-row a:hover {
    color: var(--p-orange-500);
}

/* ==========================================================================
   8. LIGHTBOX MODAL
   ========================================================================== */
.prod-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(5, 11, 20, 0.94);
    backdrop-filter: blur(12px);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

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

.prod-lightbox__content {
    max-width: 900px;
    max-height: 85vh;
    position: relative;
}

.prod-lightbox__img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: var(--p-radius-lg);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
    display: block;
}

.prod-lightbox__close {
    position: absolute;
    top: -50px;
    right: 0;
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 2rem;
    cursor: pointer;
    transition: var(--p-transition);
}

.prod-lightbox__close:hover {
    color: var(--p-orange-500);
    transform: rotate(90deg);
}

/* ==========================================================================
   9. SCROLL REVEAL ANIMATIONS
   ========================================================================== */
.prod-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

/* ==========================================================================
   10. RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 992px) {
    .prod-tabs-bar {
        top: 62px;
    }
    .prod-hero {
        padding: 6.5rem 0 3.5rem;
    }
    .prod-hero__grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .prod-hero__title {
        font-size: 2.2rem;
    }
    .prod-model-card,
    .prod-model-card.reverse {
        grid-template-columns: 1fr;
    }
    .prod-model-card.reverse .prod-model-media {
        order: 1;
    }
    .prod-model-card.reverse .prod-model-body {
        order: 2;
    }
    .prod-model-body {
        padding: 2rem 1.5rem;
    }
    .prod-benefits-grid,
    .prod-process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .prod-others-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .prod-cta-banner__grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 640px) {
    .prod-hero__title {
        font-size: 1.85rem;
    }
    .prod-hero__stats {
        flex-direction: column;
        gap: 0.75rem;
    }
    .prod-hero__actions {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        width: 100%;
    }
    .prod-hero__actions .prod-btn {
        width: 100%;
        justify-content: center;
        text-align: center;
    }
    .prod-model-cta {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        width: 100%;
    }
    .prod-model-cta .prod-btn {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        text-align: center;
        padding: 0.85rem 1.25rem;
        border-radius: 12px;
        white-space: normal;
        min-height: 48px;
    }
    .prod-benefits-grid,
    .prod-process-grid,
    .prod-others-grid {
        grid-template-columns: 1fr;
    }
    .prod-specs-grid {
        grid-template-columns: 1fr;
    }
    .prod-cta-banner {
        padding: 2.5rem 1.5rem;
    }
}