/* ==========================================================================
   MARSTRON - OFFICIAL ONEPLUS INSPIRED STYLESHEET
   Never Settle for Ordinary Power & Audio
   ========================================================================== */

:root {
    --oneplus-red: #eb0028;
    --oneplus-red-hover: #c40022;
    --oneplus-red-soft: rgba(235, 0, 40, 0.08);
    --dark-primary: #0d0f12;
    --dark-secondary: #161920;
    --dark-card: #1c2029;
    --dark-border: #282d3a;
    --light-bg: #f6f7f9;
    --light-card: #ffffff;
    --text-main: #0d0f12;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border-light: #e2e8f0;
    --border-dark: #222735;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-pill: 9999px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 12px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 45px rgba(0, 0, 0, 0.12);
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Space Grotesk', monospace;
  }

  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  body {
    font-family: var(--font-main);
    background-color: #ffffff;
    color: var(--text-main);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
  }

  a {
    text-decoration: none;
    color: inherit;
  }

  /* --- Announcement / Member Strip --- */
  .top-bar {
    background-color: var(--dark-primary);
    color: #cbd5e1;
    padding: 9px 20px;
    font-size: 13px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    z-index: 1010;
  }

  .top-bar-left {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .red-tag-pill {
    background: var(--oneplus-red);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.5px;
    text-transform: uppercase;
  }

  .top-bar-link {
    color: #ffffff;
    font-weight: 600;
    margin-left: 6px;
    text-decoration: underline;
    transition: color 0.2s;
  }

  .top-bar-link:hover {
    color: var(--oneplus-red);
  }

  .top-bar-right {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 12px;
  }

  .top-bar-right a {
    color: #94a3b8;
    transition: color 0.2s;
  }

  .top-bar-right a:hover {
    color: #ffffff;
  }

  /* --- OnePlus Inspired Header & Nav --- */
  header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: background 0.3s;
  }

  .nav-container {
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 28px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .brand-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 21px;
    letter-spacing: -0.6px;
    color: var(--dark-primary);
  }

  .brand-icon-box {
    width: 26px;
    height: 26px;
    background-color: var(--oneplus-red);
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 800;
    border-radius: 4px;
  }

  .brand-logo span.red-plus {
    color: var(--oneplus-red);
    font-weight: 900;
  }

  .nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
    align-items: center;
  }

  .nav-links li a {
    color: #334155;
    font-size: 14px;
    font-weight: 600;
    transition: color 0.2s;
    position: relative;
    padding: 6px 0;
  }

  .nav-links li a:hover,
  .nav-links li a.active {
    color: var(--oneplus-red);
  }

  .nav-links li a.active::after,
  .nav-links li a:hover::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--oneplus-red);
    border-radius: 2px;
  }

  .nav-badge-care {
    background: rgba(235, 0, 40, 0.1);
    color: var(--oneplus-red);
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid rgba(235, 0, 40, 0.2);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: all 0.2s;
  }

  .nav-badge-care:hover {
    background: white;
    color: white;
  }

  .nav-actions {
    display: flex;
    align-items: center;
    gap: 18px;
  }

  .icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: #1e293b;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s;
    position: relative;
  }

  .icon-btn:hover {
    background: #f1f5f9;
    color: var(--oneplus-red);
  }

  .icon-btn svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .cart-counter {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--oneplus-red);
    color: white;
    font-size: 10px;
    font-weight: 800;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #ffffff;
  }

  .btn-warranty-nav {
    background: #0f172a;
    color: #ffffff;
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .btn-warranty-nav:hover {
    background: var(--oneplus-red);
    transform: translateY(-1px);
  }

  .mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
  }

  /* --- OnePlus Style Hero Slider --- */
  .hero-slider-section {
    background-color: #08090b;
    color: #ffffff;
    position: relative;
    overflow: hidden;
    min-height: 600px;
  }

  .hero-slide {
    display: none;
    padding: 80px 28px 100px;
    max-width: 1360px;
    margin: 0 auto;
    animation: fadeIn 0.5s ease forwards;
  }

  .hero-slide.active {
    display: block;
  }

  @keyframes fadeIn {
    from { opacity: 0; transform: scale(0.99); }
    to { opacity: 1; transform: scale(1); }
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    align-items: center;
    gap: 60px;
  }

  .hero-pill-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(235, 0, 40, 0.15);
    color: #ff4766;
    border: 1px solid rgba(235, 0, 40, 0.3);
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    margin-bottom: 20px;
  }

  .hero-title {
    font-size: 54px;
    line-height: 1.08;
    font-weight: 800;
    letter-spacing: -1.8px;
    margin-bottom: 20px;
  }

  .hero-title .highlight {
    background: linear-gradient(135deg, #ffffff 40%, #ff6b81 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .hero-subtitle {
    font-size: 17px;
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 30px;
    max-width: 540px;
  }

  .hero-specs-row {
    display: flex;
    gap: 20px;
    margin-bottom: 34px;
    flex-wrap: wrap;
  }

  .spec-badge {
    display: flex;
    flex-direction: column;
    border-left: 2px solid var(--oneplus-red);
    padding-left: 12px;
  }

  .spec-badge strong {
    font-size: 18px;
    font-family: var(--font-mono);
    color: #ffffff;
  }

  .spec-badge span {
    font-size: 12px;
    color: #94a3b8;
  }

  .hero-pricing-box {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
  }

  .hero-price {
    font-size: 32px;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.5px;
  }

  .hero-mrp {
    font-size: 16px;
    color: #64748b;
    text-decoration: line-through;
  }

  .hero-discount-chip {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(16, 185, 129, 0.3);
  }

  .hero-btn-group {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .btn-oneplus-red {
    background-color: var(--oneplus-red);
    color: #ffffff;
    border: none;
    padding: 15px 32px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
  }

  .btn-oneplus-red:hover {
    background-color: var(--oneplus-red-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(235, 0, 40, 0.4);
  }

  .btn-outline-light {
    background: transparent;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.24);
    padding: 15px 30px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
  }

  .hero-media-wrap {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .hero-media-wrap .glow-backdrop {
    position: absolute;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(235, 0, 40, 0.25) 0%, rgba(0, 0, 0, 0) 70%);
    border-radius: 50%;
    filter: blur(50px);
    z-index: 1;
  }

  .hero-media-wrap img {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 500px;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
    transition: transform 0.4s ease;
  }

  .hero-media-wrap:hover img {
    transform: translateY(-6px) scale(1.02);
  }

  /* Slider Controls Bar */
  .slider-controls-bar {
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 28px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
  }

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

  .slide-tab-btn {
    background: transparent;
    border: none;
    color: #64748b;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .slide-tab-btn.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
  }

  .slide-tab-btn .tab-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #475569;
    transition: background 0.2s;
  }

  .slide-tab-btn.active .tab-dot {
    background: var(--oneplus-red);
  }

  .slider-arrows {
    display: flex;
    gap: 10px;
  }

  .arrow-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
  }

  .arrow-btn:hover {
    background: var(--oneplus-red);
    border-color: var(--oneplus-red);
  }

  /* --- Perks Strip --- */
  .perks-ribbon {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-light);
    padding: 24px 28px;
  }

  .perks-grid {
    max-width: 1360px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .perk-box {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .perk-icon-circle {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--oneplus-red);
    font-size: 22px;
    flex-shrink: 0;
  }

  .perk-info h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--dark-primary);
  }

  .perk-info p {
    font-size: 12px;
    color: var(--text-muted);
  }

  /* --- Flash Deal Countdown Banner --- */
  .flash-deal-banner {
    background: linear-gradient(90deg, #11141a 0%, #1f2533 100%);
    color: white;
    padding: 18px 28px;
    border-bottom: 1px solid var(--border-dark);
  }

  .flash-container {
    max-width: 1360px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
  }

  .flash-tag-wrap {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .flash-badge {
    background: var(--oneplus-red);
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.5px;
    padding: 4px 10px;
    border-radius: 4px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .flash-text {
    font-size: 14px;
    color: #e2e8f0;
  }

  .flash-text strong {
    color: #ffffff;
  }

  .countdown-box {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-weight: 700;
  }

  .time-unit {
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 14px;
    min-width: 32px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
  }

  /* --- Category Filter Navigation Pills --- */
  .category-filter-section {
    padding: 40px 28px 10px;
    max-width: 1360px;
    margin: 0 auto;
  }

  .cat-scroll-container {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 12px;
    scrollbar-width: none;
  }

  .cat-scroll-container::-webkit-scrollbar {
    display: none;
  }

  .cat-filter-btn {
    background: #f1f5f9;
    color: #334155;
    border: 1px solid transparent;
    padding: 10px 22px;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .cat-filter-btn:hover {
    background: #e2e8f0;
    color: #0f172a;
  }

  .cat-filter-btn.active {
    background: var(--dark-primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }

  /* --- Product Section --- */
  .section-wrap {
    padding: 40px 28px 80px;
    max-width: 1360px;
    margin: 0 auto;
  }

  .section-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 36px;
  }

  .section-headline h2 {
    font-size: 34px;
    font-weight: 800;
    letter-spacing: -1.2px;
    color: var(--dark-primary);
  }

  .section-headline p {
    color: var(--text-muted);
    font-size: 15px;
    margin-top: 6px;
  }

  .view-all-text-link {
    color: var(--oneplus-red);
    font-size: 14px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.2s;
  }

  .view-all-text-link:hover {
    gap: 10px;
  }

  /* --- Product Grid --- */
  .product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .product-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition);
  }

  .product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
  }

  .product-card-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 5;
    background: var(--dark-primary);
    color: #ffffff;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 4px 9px;
    border-radius: 4px;
    text-transform: uppercase;
  }

  .product-card-badge.red {
    background: var(--oneplus-red);
  }

  .product-card-badge.green {
    background: #059669;
  }

  .product-image-box {
    background-color: #f8fafc;
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    position: relative;
    overflow: hidden;
  }

  .product-image-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-sm);
    transition: transform 0.4s ease;
  }

  .product-card:hover .product-image-box img {
    transform: scale(1.05);
  }

  .quick-view-btn {
    position: absolute;
    bottom: 12px;
    background: rgba(255, 255, 255, 0.95);
    color: #0f172a;
    border: 1px solid var(--border-light);
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.2s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  }

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

  .product-content {
    padding: 22px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
  }

  .product-cat-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 6px;
  }

  .product-item-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark-primary);
    margin-bottom: 8px;
    line-height: 1.35;
    min-height: 44px;
  }

  .product-key-specs {
    font-size: 13px;
    color: #64748b;
    margin-bottom: 16px;
    line-height: 1.45;
  }

  .swatches-row {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    align-items: center;
  }

  .swatch {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1px solid #cbd5e1;
    cursor: pointer;
    transition: transform 0.2s;
  }

  .swatch:hover, .swatch.active {
    transform: scale(1.3);
    border-color: var(--oneplus-red);
  }

  .product-card-footer {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .product-pricing {
    display: flex;
    flex-direction: column;
  }

  .price-current {
    font-size: 19px;
    font-weight: 800;
    color: var(--dark-primary);
  }

  .price-row-details {
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .price-old {
    font-size: 12px;
    color: #94a3b8;
    text-decoration: line-through;
  }

  .save-tag {
    font-size: 11px;
    font-weight: 700;
    color: #059669;
  }

  .btn-add-cart {
    background: #0f172a;
    color: #ffffff;
    border: none;
    padding: 9px 16px;
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .btn-add-cart:hover {
    background: var(--oneplus-red);
    transform: scale(1.03);
  }

  /* --- Deep Dive Engineering Section --- */
  .tech-deep-dive {
    background-color: var(--dark-primary);
    color: #ffffff;
    padding: 100px 28px;
    position: relative;
  }

  .tech-container {
    max-width: 1360px;
    margin: 0 auto;
  }

  .tech-lead {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 60px;
  }

  .tech-lead h2 {
    font-size: 40px;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 14px;
  }

  .tech-lead p {
    color: #94a3b8;
    font-size: 16px;
    line-height: 1.6;
  }

  .tech-interactive-grid {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 50px;
    align-items: center;
  }

  .tech-features-menu {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .tech-feature-card {
    background: var(--dark-secondary);
    border: 1px solid var(--border-dark);
    padding: 24px 28px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
  }

  .tech-feature-card.active {
    background: #1e2433;
    border-color: var(--oneplus-red);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  }

  .tech-feature-card.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--oneplus-red);
    border-radius: 4px 0 0 4px;
  }

  .tech-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
  }

  .tech-feature-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
  }

  .tech-feature-card p {
    font-size: 14px;
    color: #94a3b8;
    line-height: 1.5;
  }

  .tech-display-frame {
    background: var(--dark-secondary);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-lg);
    padding: 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .tech-display-frame img {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
    transition: opacity 0.3s ease;
  }

  .tech-stat-callout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-dark);
  }

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

  .stat-callout-item strong {
    display: block;
    font-size: 22px;
    font-family: var(--font-mono);
    color: var(--oneplus-red);
  }

  .stat-callout-item span {
    font-size: 12px;
    color: #94a3b8;
  }

  /* --- Portronics Benchmark Matrix --- */
  .benchmark-section {
    background-color: #f8fafc;
    padding: 90px 28px;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
  }

  .benchmark-container {
    max-width: 1180px;
    margin: 0 auto;
  }

  .table-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    overflow-x: auto;
    margin-top: 40px;
  }

  table.benchmark-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
  }

  table.benchmark-table th, 
  table.benchmark-table td {
    padding: 20px 26px;
    border-bottom: 1px solid #f1f5f9;
    font-size: 14px;
  }

  table.benchmark-table th {
    background: #fcfcfd;
    font-size: 15px;
    font-weight: 800;
    color: var(--dark-primary);
  }

  table.benchmark-table th.col-marstron,
  table.benchmark-table td.col-marstron {
    background: rgba(235, 0, 40, 0.02);
    border-left: 2px solid rgba(235, 0, 40, 0.15);
    border-right: 2px solid rgba(235, 0, 40, 0.15);
    font-weight: 600;
    color: var(--dark-primary);
  }

  .badge-win {
    background: var(--oneplus-red);
    color: #fff;
    font-size: 10px;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: 4px;
    margin-left: 8px;
  }

  .check-icon {
    color: #10b981;
    font-weight: 800;
    margin-right: 6px;
  }

  .cross-icon {
    color: #94a3b8;
    margin-right: 6px;
  }

  /* --- Marstron Care Banner --- */
  .care-hero-card {
    max-width: 1360px;
    margin: 60px auto 80px;
    padding: 0 28px;
  }

  .care-banner {
    background: linear-gradient(135deg, #090a0e 0%, #1e1b24 100%);
    border-radius: var(--radius-lg);
    padding: 50px 60px;
    color: #ffffff;
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    align-items: center;
    gap: 40px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .care-banner::after {
    content: '';
    position: absolute;
    right: -80px;
    bottom: -80px;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(235, 0, 40, 0.3) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    pointer-events: none;
  }

  .care-content h3 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.8px;
    margin-bottom: 12px;
  }

  .care-content p {
    font-size: 15px;
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 24px;
    max-width: 580px;
  }

  .care-features-list {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
  }

  .care-feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: #e2e8f0;
  }

  .care-cta-box {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .care-stamp {
    background: rgba(255, 255, 255, 0.05);
    border: 1px dashed rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
  }

  .care-stamp-number {
    font-size: 38px;
    font-family: var(--font-mono);
    font-weight: 800;
    color: #ffffff;
    line-height: 1;
  }

  .care-stamp-label {
    font-size: 13px;
    color: #ff4766;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 6px;
  }

  /* --- Verified Testimonials --- */
  .reviews-section {
    padding: 80px 28px;
    max-width: 1360px;
    margin: 0 auto;
  }

  .reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 36px;
  }

  .review-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
  }

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

  .review-stars {
    color: #f59e0b;
    margin-bottom: 12px;
    font-size: 14px;
    letter-spacing: 2px;
  }

  .review-quote {
    font-size: 15px;
    line-height: 1.6;
    color: #334155;
    margin-bottom: 20px;
  }

  .reviewer-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    border-top: 1px solid #f1f5f9;
    padding-top: 16px;
  }

  .reviewer-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #f1f5f9;
    color: var(--dark-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 13px;
  }

  .reviewer-details h5 {
    font-size: 14px;
    font-weight: 700;
    color: var(--dark-primary);
  }

  .reviewer-details span {
    font-size: 12px;
    color: #059669;
    font-weight: 600;
  }

  /* --- B2B Banner --- */
  .b2b-wrapper {
    max-width: 1360px;
    margin: 20px auto 80px;
    padding: 0 28px;
  }

  .b2b-card {
    background: #0f172a;
    color: white;
    border-radius: var(--radius-lg);
    padding: 44px 54px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
  }

  .b2b-card h3 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 8px;
  }

  .b2b-card p {
    color: #94a3b8;
    font-size: 14px;
    max-width: 580px;
  }

  /* --- FAQ Section --- */
  .faq-wrapper {
    max-width: 880px;
    margin: 0 auto 100px;
    padding: 0 28px;
  }

  .faq-card {
    border-bottom: 1px solid var(--border-light);
    padding: 20px 0;
  }

  .faq-trigger {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
    font-weight: 700;
    color: var(--dark-primary);
    cursor: pointer;
    user-select: none;
  }

  .faq-trigger:hover {
    color: var(--oneplus-red);
  }

  .faq-content {
    font-size: 14px;
    color: #64748b;
    line-height: 1.6;
    margin-top: 12px;
    display: none;
  }

  .faq-card.open .faq-content {
    display: block;
  }

  .faq-sign {
    font-size: 20px;
    font-weight: 700;
    transition: transform 0.2s;
  }

  .faq-card.open .faq-sign {
    transform: rotate(45deg);
    color: var(--oneplus-red);
  }

  /* --- Footer --- */
  footer {
    background-color: #090a0d;
    color: #94a3b8;
    padding: 80px 28px 30px;
    border-top: 1px solid #1c1f26;
  }

  .footer-container {
    max-width: 1360px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 60px;
  }

  .footer-brand p {
    font-size: 13px;
    line-height: 1.6;
    margin-top: 16px;
    max-width: 320px;
    color: #64748b;
  }

  .footer-col h5 {
    color: #ffffff;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 0.2px;
  }

  .footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .footer-col ul li a {
    color: #94a3b8;
    font-size: 13px;
    transition: color 0.2s;
  }

  .footer-col ul li a:hover {
    color: #ffffff;
  }

  .footer-bottom {
    max-width: 1360px;
    margin: 0 auto;
    border-top: 1px solid #1e222b;
    padding-top: 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: #64748b;
    flex-wrap: wrap;
    gap: 16px;
  }

  .trust-badges-row {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .trust-badge-pill {
    background: #14171f;
    border: 1px solid #232836;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    color: #94a3b8;
  }

  /* --- Cart Drawer --- */
  .cart-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }

  .cart-drawer-overlay.active {
    opacity: 1;
    visibility: visible;
  }

  .cart-drawer {
    position: fixed;
    top: 0;
    right: -420px;
    width: 100%;
    max-width: 420px;
    height: 100%;
    background: #ffffff;
    z-index: 2001;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .cart-drawer.active {
    right: 0;
  }

  .cart-drawer-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .cart-drawer-header h3 {
    font-size: 18px;
    font-weight: 800;
  }

  .close-cart-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #64748b;
  }

  .cart-drawer-body {
    flex-grow: 1;
    overflow-y: auto;
    padding: 24px;
  }

  .cart-item-row {
    display: flex;
    gap: 14px;
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid #f1f5f9;
    align-items: center;
  }

  .cart-item-thumb {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    background: #f8fafc;
  }

  .cart-item-meta {
    flex-grow: 1;
  }

  .cart-item-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--dark-primary);
    margin-bottom: 4px;
  }

  .cart-item-price {
    font-size: 13px;
    font-weight: 800;
    color: var(--oneplus-red);
  }

  .cart-item-remove {
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    font-size: 12px;
    text-decoration: underline;
  }

  .cart-drawer-footer {
    padding: 24px;
    border-top: 1px solid var(--border-light);
    background: #f8fafc;
  }

  .cart-subtotal-row {
    display: flex;
    justify-content: space-between;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
  }

  .btn-checkout {
    width: 100%;
    background: var(--oneplus-red);
    color: #ffffff;
    border: none;
    padding: 14px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
  }

  .btn-checkout:hover {
    background: var(--oneplus-red-hover);
  }

  /* --- Search Modal --- */
  .search-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(6px);
    z-index: 2100;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 100px;
  }

  .search-modal-overlay.active {
    display: flex;
  }

  .search-modal-card {
    background: #ffffff;
    width: 100%;
    max-width: 620px;
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    position: relative;
  }

  .search-input-box {
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 2px solid var(--oneplus-red);
    padding-bottom: 12px;
  }

  .search-input-box input {
    width: 100%;
    border: none;
    outline: none;
    font-size: 18px;
    font-family: inherit;
  }

  .search-results-list {
    margin-top: 20px;
    max-height: 300px;
    overflow-y: auto;
    list-style: none;
  }

  .search-result-item {
    padding: 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
  }

  .search-result-item:hover {
    background: #f1f5f9;
  }

  /* --- Toast Notifications --- */
  .toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .toast-msg {
    background: var(--dark-primary);
    color: #ffffff;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    border-left: 3px solid var(--oneplus-red);
    animation: slideToast 0.3s ease;
  }

  @keyframes slideToast {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
  }

  /* --- Warranty Registration Specific Styles --- */
  .hero-care-header {
    text-align: center;
    padding: 60px 24px 30px;
    background: linear-gradient(180deg, #ffffff 0%, #fbfbfb 100%);
  }

  .hero-care-header h1 {
    font-size: 38px;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--dark-primary);
    margin-bottom: 12px;
  }

  .hero-care-header p {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 580px;
    margin: 0 auto;
  }

  .warranty-wrapper {
    max-width: 840px;
    margin: 20px auto 80px;
    padding: 0 20px;
  }

  .warranty-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
  }

  .warranty-section-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.3px;
  }

  .step-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #f1f5f9;
    color: var(--dark-primary);
    font-size: 12px;
    font-weight: 800;
    border: 1px solid var(--border-light);
  }

  .form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .form-group.full-width {
    grid-column: span 2;
  }

  .form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
  }

  .form-group label span.req {
    color: var(--oneplus-red);
  }

  .form-control {
    width: 100%;
    height: 48px;
    background: #f8fafc;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 0 16px;
    font-size: 14px;
    font-family: inherit;
    color: var(--dark-primary);
    transition: all 0.2s ease;
  }

  .form-control:focus {
    outline: none;
    border-color: var(--oneplus-red);
    background: #ffffff;
    box-shadow: 0 0 0 1px var(--oneplus-red);
  }

  select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23505050' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    cursor: pointer;
  }

  .helper-text {
    font-size: 12px;
    color: #94a3b8;
    margin-top: 6px;
    display: block;
  }

  .file-dropzone {
    border: 1.5px dashed var(--border-light);
    border-radius: 8px;
    padding: 30px 20px;
    text-align: center;
    background: #f8fafc;
    cursor: pointer;
    transition: all 0.2s;
    display: block;
  }

  .file-dropzone:hover {
    border-color: var(--oneplus-red);
    background: #f1f5f9;
  }

  .file-dropzone input {
    display: none;
  }

  .file-label {
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
  }

  .file-label strong {
    color: var(--oneplus-red);
  }

  .action-row {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-top: 32px;
  }

  .btn-submit-warranty {
    background: var(--oneplus-red);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-pill);
    height: 52px;
    padding: 0 48px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s ease;
    min-width: 260px;
  }

  .btn-submit-warranty:hover {
    background: var(--oneplus-red-hover);
    transform: scale(1.02);
  }

  .terms-text {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    max-width: 480px;
  }

  .terms-text a {
    color: var(--dark-primary);
    text-decoration: underline;
  }

  .warranty-info-box {
    margin-top: 30px;
    background: #f8fafc;
    border-left: 3px solid var(--oneplus-red);
    padding: 18px 22px;
    border-radius: 0 8px 8px 0;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    border-top: 1px solid var(--border-light);
    border-right: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
  }

  /* ============================================================ */
  /* OnePlus.in Inspired Mobile Responsive & Universal Engine     */
  /* ============================================================ */

  /* Mobile Navigation Overlay & Slide Drawer */
  .mobile-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(13, 15, 18, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 99998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.3s;
  }
  .mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }

  .mobile-nav-drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 86vw;
    max-width: 360px;
    background: #ffffff;
    z-index: 99999;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.25);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .mobile-nav-drawer.active {
    transform: translateX(0);
  }

  .mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
    background: #ffffff;
    position: sticky;
    top: 0;
    z-index: 2;
  }

  .mobile-drawer-close {
    background: #f1f5f9;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 20px;
    color: #334155;
    transition: all 0.2s;
  }
  .mobile-drawer-close:hover {
    background: var(--oneplus-red);
    color: #ffffff;
  }

  .mobile-care-hero-card {
    margin: 14px 16px 6px;
    padding: 16px;
    border-radius: 14px;
    background: linear-gradient(135deg, #0d0f12 0%, #1f2533 100%);
    color: #ffffff;
    border: 1px solid rgba(235, 0, 40, 0.3);
    position: relative;
    overflow: hidden;
  }
  .mobile-care-hero-card .red-pill {
    background: var(--oneplus-red);
    color: #ffffff;
    font-size: 10px;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: var(--radius-pill);
    display: inline-block;
    margin-bottom: 6px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
  }
  .mobile-care-hero-card h4 {
    font-size: 15px;
    font-weight: 800;
    margin-bottom: 4px;
    color: #ffffff;
  }
  .mobile-care-hero-card p {
    font-size: 11px;
    color: #94a3b8;
    margin-bottom: 12px;
    line-height: 1.4;
  }
  .btn-mobile-care {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--oneplus-red);
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    text-decoration: none;
    transition: background 0.2s;
  }
  .btn-mobile-care:hover {
    background: var(--oneplus-red-hover);
  }

  .mobile-nav-list {
    list-style: none;
    padding: 10px 14px;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  .mobile-nav-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    color: #1e293b;
    transition: all 0.2s;
    text-decoration: none;
  }
  .mobile-nav-list li a:hover,
  .mobile-nav-list li a:active {
    background: #f8fafc;
    color: var(--oneplus-red);
  }
  .mobile-nav-list li a .nav-chevron {
    color: #94a3b8;
    font-size: 14px;
  }
  .mobile-nav-category-tag {
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: #94a3b8;
    padding: 12px 14px 4px;
  }

  .mobile-drawer-footer {
    margin-top: auto;
    padding: 18px 16px;
    border-top: 1px solid var(--border-light);
    background: #f8fafc;
    font-size: 12px;
    color: #64748b;
    line-height: 1.6;
  }

  /* Responsive Media Queries */
  @media (max-width: 1100px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .perks-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-container { grid-template-columns: repeat(2, 1fr); }
    .reviews-grid { grid-template-columns: 1fr; }
    .tech-interactive-grid { grid-template-columns: 1fr; }
    .care-banner { grid-template-columns: 1fr; text-align: left; }
    .b2b-card { flex-direction: column; }
  }

  @media (max-width: 992px) {
    .nav-links { display: none !important; }
    .btn-warranty-nav { display: none !important; }
    .mobile-menu-btn {
      display: flex !important;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: #f1f5f9;
      color: #0d0f12;
    }
  }

  @media (max-width: 768px) {
    /* Base Body & Reset */
    body { font-size: 14px; overflow-x: hidden; }

    /* Top Announcement Bar */
    .top-bar {
      padding: 7px 14px;
      font-size: 11px;
      justify-content: center;
    }
    .top-bar-left {
      gap: 6px;
      justify-content: center;
      text-align: center;
      flex-wrap: wrap;
    }
    .top-bar-right { display: none !important; }

    /* Header & Navigation Bar */
    header { height: 62px; }
    .nav-container {
      padding: 0 16px;
      height: 62px;
    }
    .brand-logo { font-size: 18px; gap: 6px; }
    .brand-icon-box { width: 24px; height: 24px; font-size: 12px; }
    .nav-actions { gap: 10px; }
    .icon-btn { padding: 6px; }

    /* Hero Slider */
    .hero-slider-section {
      min-height: auto;
    }
    .hero-slide {
      padding: 32px 16px 44px;
    }
    .hero-grid {
      grid-template-columns: 1fr;
      gap: 24px;
      text-align: left;
    }
    .hero-pill-tag {
      font-size: 11px;
      padding: 4px 10px;
      margin-bottom: 12px;
    }
    .hero-title {
      font-size: 28px;
      line-height: 1.15;
      letter-spacing: -0.8px;
      margin-bottom: 12px;
    }
    .hero-subtitle {
      font-size: 13px;
      line-height: 1.5;
      margin-bottom: 18px;
      max-width: 100%;
    }
    .hero-specs-row {
      gap: 12px;
      margin-bottom: 20px;
      justify-content: flex-start;
    }
    .spec-badge {
      padding-left: 8px;
      border-left-width: 2px;
    }
    .spec-badge strong { font-size: 15px; }
    .spec-badge span { font-size: 11px; }
    .hero-pricing-box {
      margin-bottom: 20px;
      gap: 10px;
    }
    .hero-price { font-size: 24px; }
    .hero-btn-group {
      flex-direction: column;
      width: 100%;
      gap: 10px;
    }
    .hero-btn-group .btn-oneplus-red,
    .hero-btn-group .btn-outline-light {
      width: 100%;
      justify-content: center;
      padding: 13px 20px;
      font-size: 14px;
    }
    .hero-media-wrap img {
      max-height: 220px;
      width: 100%;
      object-fit: contain;
    }
    .hero-media-wrap .glow-backdrop {
      width: 220px;
      height: 220px;
    }
    .slider-controls-bar {
      padding: 0 16px 20px;
      flex-direction: row;
      gap: 10px;
      justify-content: space-between;
    }
    .slide-tabs {
      gap: 6px;
      overflow-x: auto;
    }
    .slide-tab-btn {
      font-size: 11px;
      padding: 4px 10px;
    }

    /* Perks Ribbon */
    .perks-ribbon { padding: 18px 16px; }
    .perks-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }
    .perk-box { gap: 10px; }
    .perk-icon-circle {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      font-size: 16px;
    }
    .perk-info h4 { font-size: 13px; }
    .perk-info p { font-size: 11px; }

    /* Flash Deal Banner */
    .flash-deal-banner { padding: 14px 16px; }
    .flash-container {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
    }
    .flash-tag-wrap { gap: 10px; }
    .countdown-box { align-self: center; font-size: 12px; }
    .time-unit { min-width: 28px; font-size: 13px; }

    /* Category Filter Pills */
    .category-filter-section { padding: 24px 16px 4px; }
    .cat-scroll-container {
      padding-bottom: 8px;
      gap: 8px;
    }
    .cat-filter-btn {
      padding: 8px 16px;
      font-size: 13px;
    }

    /* Section Headers */
    .section-wrap { padding: 28px 16px 48px; }
    .section-header-row {
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
      margin-bottom: 20px;
    }
    .section-headline h2 {
      font-size: 22px;
      letter-spacing: -0.6px;
    }
    .section-headline p { font-size: 13px; }

    /* Product Grid — 2 Columns on Mobile (OnePlus Signature Style) */
    .product-grid {
      grid-template-columns: repeat(2, 1fr) !important;
      gap: 12px !important;
    }
    .product-card {
      border-radius: 12px;
    }
    .product-image-box {
      height: 140px !important;
      padding: 10px !important;
    }
    .quick-view-btn { display: none !important; }
    .product-content {
      padding: 12px !important;
    }
    .product-cat-label {
      font-size: 10px;
      margin-bottom: 4px;
    }
    .product-item-title {
      font-size: 13px !important;
      line-height: 1.35 !important;
      min-height: 36px !important;
      max-height: 36px !important;
      display: -webkit-box !important;
      -webkit-line-clamp: 2 !important;
      line-clamp: 2 !important;
      -webkit-box-orient: vertical !important;
      overflow: hidden !important;
      margin-bottom: 4px !important;
    }
    .product-key-specs {
      font-size: 11px !important;
      line-height: 1.3 !important;
      margin-bottom: 8px !important;
      white-space: nowrap !important;
      overflow: hidden !important;
      text-overflow: ellipsis !important;
    }
    .swatches-row { display: none; }
    .product-card-footer {
      flex-direction: column !important;
      align-items: flex-start !important;
      gap: 8px !important;
      padding-top: 8px !important;
    }
    .price-current { font-size: 15px !important; }
    .price-old { font-size: 11px !important; }
    .save-tag { font-size: 10px !important; }
    .btn-add-cart {
      width: 100% !important;
      justify-content: center !important;
      padding: 8px 10px !important;
      font-size: 11px !important;
      border-radius: var(--radius-pill) !important;
    }

    /* Technology Section */
    .tech-interactive-grid {
      grid-template-columns: 1fr;
      gap: 20px;
    }
    .tech-media-col img {
      max-height: 220px;
      border-radius: 14px;
    }
    .tech-feature-card { padding: 14px; }

    /* Care & Doorstep Warranty Banner */
    .care-banner {
      grid-template-columns: 1fr;
      padding: 24px 18px;
      gap: 18px;
      text-align: left;
      border-radius: 16px;
    }
    .care-content h2 { font-size: 22px; }
    .care-cta-group {
      flex-direction: column;
      width: 100%;
      gap: 10px;
    }
    .care-cta-group a,
    .care-cta-group button {
      width: 100%;
      justify-content: center;
      text-align: center;
    }

    /* B2B Wholesale Card */
    .b2b-card {
      flex-direction: column;
      padding: 24px 18px;
      text-align: left;
      gap: 18px;
      border-radius: 16px;
    }
    .b2b-btn {
      width: 100%;
      justify-content: center;
    }

    /* Customer Reviews */
    .reviews-grid {
      grid-template-columns: 1fr;
      gap: 14px;
    }
    .review-card { padding: 18px 16px; }

    /* Footer */
    .footer-container {
      grid-template-columns: 1fr;
      gap: 24px;
      padding: 36px 16px 20px;
    }
    .footer-bottom {
      padding: 20px 16px;
      flex-direction: column;
      gap: 12px;
      text-align: center;
    }
    .trust-badges-row {
      justify-content: center;
      flex-wrap: wrap;
      gap: 6px;
    }

    /* Search Modal & Cart Drawer */
    .cart-drawer {
      width: 100vw !important;
      max-width: 100vw !important;
    }
    .search-modal-card {
      width: calc(100vw - 28px) !important;
      margin: 16px auto !important;
      padding: 16px !important;
    }

    /* Warranty Registration Form */
    .hero-care-header {
      padding: 32px 16px 16px;
    }
    .hero-care-header h1 { font-size: 26px; }
    .hero-care-header p { font-size: 13px; }
    .warranty-wrapper {
      margin: 10px auto 60px;
      padding: 0 14px;
    }
    .warranty-card {
      padding: 20px 16px;
      border-radius: 14px;
      margin-bottom: 16px;
    }
    .warranty-section-title {
      font-size: 16px;
      margin-bottom: 16px;
    }
    .form-grid {
      grid-template-columns: 1fr !important;
      gap: 16px !important;
    }
    .form-group.full-width {
      grid-column: span 1 !important;
    }
    .form-control {
      font-size: 16px !important; /* Prevents auto zoom on mobile Safari */
      height: 48px;
    }
    .btn-submit-warranty {
      width: 100%;
      min-width: 100%;
      height: 48px;
      font-size: 15px;
    }
  }

  @media (max-width: 400px) {
    .product-grid {
      grid-template-columns: 1fr !important;
    }
    .perks-grid {
      grid-template-columns: 1fr !important;
    }
  }

/* Optimised images: <picture> wraps the <img> without affecting layout */
picture { display: contents; }