/* ===== CSS RESET & VARIABLES ===== */
    *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

    :root {
      --color-bg:        #FAFAF8;
      --color-surface:   #FFFFFF;
      --color-dark:      #1A1A1A;
      --color-text:      #3A3A3A;
      --color-muted:     #7A7A7A;
      --color-text-light: #6B7280;
      --color-accent:    #152B52;
      --color-accent-light: #2856A3;
      --color-accent-3d:  #0A1B36;
      --color-border:    #E8E6E1;
      --color-hero-overlay: rgba(15, 15, 12, 0.55);
      --font-display:    'Playfair Display', Georgia, serif;
      --font-body:       'Inter', -apple-system, sans-serif;
      --radius:          12px;
      --radius-sm:       8px;
      --shadow-soft:     0 4px 24px rgba(0,0,0,.06);
      --shadow-card:     0 8px 40px rgba(0,0,0,.08);
      --shadow-hover:    0 12px 48px rgba(0,0,0,.12);
      --transition:      .35s cubic-bezier(.4,0,.2,1);
      --max-width:       1200px;
      --section-py:      100px;
    }

    html { scroll-behavior: smooth; font-size: 16px; }

    body {
      font-family: var(--font-body);
      color: var(--color-text);
      background: var(--color-bg);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    img { max-width: 100%; display: block; }
    a { text-decoration: none; color: inherit; }
    ul { list-style: none; }

    /* ===== UTILITY ===== */
    .container { width: 90%; max-width: var(--max-width); margin: 0 auto; }

    .section-label {
      font-family: var(--font-body);
      font-size: .75rem;
      font-weight: 600;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: var(--color-accent);
      margin-bottom: 12px;
      display: block;
    }

    .section-title {
      font-family: var(--font-display);
      font-size: clamp(1.8rem, 4vw, 2.8rem);
      font-weight: 600;
      color: var(--color-dark);
      line-height: 1.2;
      margin-bottom: 20px;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--color-muted);
      max-width: 560px;
      line-height: 1.8;
    }

    .section-header { text-align: center; margin-bottom: 60px; }
    .section-header .section-subtitle { margin: 0 auto; }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      font-family: var(--font-body);
      font-size: .9rem;
      font-weight: 500;
      letter-spacing: .5px;
      border-radius: 50px;
      border: none;
      cursor: pointer;
      transition: var(--transition);
    }

    .btn-primary {
      background: linear-gradient(160deg, #2856A3 0%, #152B52 55%, #0A1B36 100%);
      color: #fff;
      box-shadow: 0 4px 0 #06101F, 0 6px 24px rgba(21,43,82,.35);
    }
    .btn-primary:hover { background: linear-gradient(160deg, #3568C0 0%, #1E3E78 55%, #152B52 100%); transform: translateY(-3px); box-shadow: 0 7px 0 #06101F, 0 10px 32px rgba(21,43,82,.45); }
    .btn-primary:active { transform: translateY(1px); box-shadow: 0 2px 0 #06101F, 0 4px 12px rgba(21,43,82,.3); }

    .btn-outline {
      background: transparent;
      color: #fff;
      border: 1.5px solid rgba(255,255,255,.5);
    }
    .btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }

    .btn-dark {
      background: var(--color-dark);
      color: #fff;
    }
    .btn-dark:hover { background: #333; transform: translateY(-2px); }

    /* ===== NAVBAR ===== */
    .navbar {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 1000;
      padding: 12px 0;
      background: rgba(255,255,255,.97);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      box-shadow: 0 1px 20px rgba(0,0,0,.08);
      transition: var(--transition);
    }

    .navbar.scrolled {
      padding: 10px 0;
      box-shadow: 0 2px 24px rgba(0,0,0,.10);
    }

    .navbar .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .nav-brand img {
      height: 44px;
      width: auto;
      border-radius: 6px;
    }

    .nav-brand-text {
      font-family: var(--font-display);
      font-size: 1.2rem;
      font-weight: 600;
      color: var(--color-dark);
      transition: var(--transition);
    }

    .navbar.scrolled .nav-brand-text { color: var(--color-dark); }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 36px;
    }

    .nav-links .mobile-logo { display: none; }

    .nav-links a {
      font-size: .88rem;
      font-weight: 500;
      letter-spacing: .3px;
      color: var(--color-text);
      transition: var(--transition);
      position: relative;
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 1.5px;
      background: var(--color-accent);
      transition: var(--transition);
    }
    .nav-links a:hover::after { width: 100%; }
    .nav-links a:hover { color: var(--color-dark); }

    .navbar.scrolled .nav-links a { color: var(--color-text); }
    .navbar.scrolled .nav-links a:hover { color: var(--color-dark); }

    /* Mobile menu toggle */
    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 4px;
    }

    .nav-toggle span {
      width: 24px;
      height: 2px;
      background: var(--color-dark);
      border-radius: 2px;
      transition: var(--transition);
    }
    .navbar.scrolled .nav-toggle span { background: var(--color-dark); }

    .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .nav-toggle.active span:nth-child(2) { opacity: 0; }
    .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    /* ===== HERO ===== */
    .hero {
      position: relative;
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      background:
        linear-gradient(135deg, rgba(15,15,12,.65) 0%, rgba(30,25,18,.45) 100%),
        url('https://images.unsplash.com/photo-1600585152220-90363fe7e115?w=1600&q=80') center/cover no-repeat;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at 30% 80%, rgba(21,43,82,.2) 0%, transparent 60%);
    }

    .hero-content {
      position: relative;
      text-align: center;
      padding: 0 20px;
      max-width: 780px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255,255,255,.1);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255,255,255,.15);
      border-radius: 50px;
      padding: 8px 20px;
      font-size: .78rem;
      font-weight: 500;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: rgba(255,255,255,.9);
      margin-bottom: 28px;
    }
    .hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-accent); }

    .hero h1 {
      font-family: var(--font-display);
      font-size: clamp(2.2rem, 6vw, 4rem);
      font-weight: 600;
      color: #fff;
      line-height: 1.15;
      margin-bottom: 24px;
    }

    .hero h1 em {
      font-style: italic;
      color: var(--color-accent-light);
    }

    .hero p {
      font-size: clamp(.95rem, 1.5vw, 1.15rem);
      color: rgba(255,255,255,.75);
      line-height: 1.8;
      max-width: 540px;
      margin: 0 auto 40px;
    }

    .hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

    .hero-scroll {
      position: absolute;
      bottom: 36px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      color: rgba(255,255,255,.5);
      font-size: .72rem;
      letter-spacing: 2px;
      text-transform: uppercase;
    }
    .hero-scroll .line { width: 1px; height: 40px; background: linear-gradient(to bottom, rgba(255,255,255,.4), transparent); }

    /* ===== ABOUT ===== */
    #about { padding: var(--section-py) 0; }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
    }

    .about-image {
      position: relative;
      border-radius: var(--radius);
      overflow: hidden;
    }

    .about-image img {
      width: 100%;
      height: 480px;
      object-fit: cover;
      border-radius: var(--radius);
    }

    .about-image .accent-border {
      position: absolute;
      top: -12px; left: -12px;
      width: 100%; height: 100%;
      border: 2px solid var(--color-accent);
      border-radius: var(--radius);
      z-index: -1;
    }

    .about-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 40px;
    }

    .stat-item {
      text-align: center;
      padding: 24px 12px;
      background: var(--color-surface);
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-soft);
    }

    .stat-number {
      font-family: var(--font-display);
      font-size: 2rem;
      font-weight: 700;
      color: var(--color-accent);
      line-height: 1;
    }

    .stat-label {
      font-size: .78rem;
      color: var(--color-muted);
      margin-top: 6px;
      letter-spacing: .5px;
    }

    .about-text p { margin-bottom: 18px; }

    /* ===== STONE VARIETIES & SERVICES — replaced by .scard slider on home page ===== */
    /* These classes are still used on stones.html and services.html dedicated pages */

    /* --- stones.html grid --- */
    #stones { padding: var(--section-py) 0; background: var(--color-surface); }

    .stones-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 24px;
    }

    .stone-card {
      position: relative;
      border-radius: var(--radius);
      overflow: hidden;
      cursor: pointer;
      display: block;
      text-decoration: none;
    }

    .stone-card img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      transition: var(--transition);
      display: block;
    }

    .stone-card:hover img { transform: scale(1.06); }

    .stone-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(0,0,0,.72) 0%, transparent 55%);
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 24px;
      transition: var(--transition);
    }

    .stone-card:hover .stone-overlay { background: linear-gradient(to top, rgba(0,0,0,.82) 0%, rgba(0,0,0,.12) 65%); }

    .stone-name {
      font-family: var(--font-display);
      font-size: 1.25rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 6px;
    }

    .stone-desc {
      font-size: .84rem;
      color: rgba(255,255,255,.8);
      line-height: 1.6;
      transform: translateY(6px);
      opacity: 0;
      transition: var(--transition);
    }

    .stone-card:hover .stone-desc { transform: translateY(0); opacity: 1; }

    /* Stone card tag & view link */
    .stone-tag {
      font-size: .68rem;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: rgba(255,255,255,.5);
      margin-bottom: 8px;
      display: block;
    }
    .stone-view-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: .82rem;
      font-weight: 500;
      color: rgba(255,255,255,.7);
      margin-top: 12px;
      opacity: 0;
      transform: translateX(-8px);
      transition: var(--transition);
    }
    .stone-view-link .arrow {
      transition: transform .3s;
    }
    .stone-card:hover .stone-view-link {
      opacity: 1;
      transform: translateX(0);
    }
    .stone-card:hover .stone-view-link .arrow {
      transform: translateX(4px);
    }

    /* Service card link */
    .service-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: .84rem;
      font-weight: 600;
      color: var(--color-accent);
      margin-top: 16px;
      opacity: 0;
      transform: translateY(6px);
      transition: var(--transition);
    }
    .service-link .arrow {
      transition: transform .3s;
    }
    .service-card:hover .service-link {
      opacity: 1;
      transform: translateY(0);
    }
    .service-card:hover .service-link .arrow {
      transform: translateX(4px);
    }

    @media (max-width: 560px) {
      .stones-grid { grid-template-columns: 1fr; gap: 16px; }
      .stone-card img { height: 220px; }
      /* Always show on mobile (no hover) */
      .stone-desc { transform: translateY(0); opacity: 1; }
      .stone-view-link { opacity: 1; transform: translateX(0); }
      .service-link { opacity: 1; transform: translateY(0); }
    }
    @media (min-width: 561px) and (max-width: 768px) {
      .stones-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
      .stone-card img { height: 200px; }
      .stone-desc { transform: translateY(0); opacity: 1; }
      .stone-view-link { opacity: 1; transform: translateX(0); }
    }
    }

    /* --- services.html grid --- */
    #services { padding: var(--section-py) 0; }

    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 24px;
    }

    .service-card {
      background: var(--color-surface);
      padding: 36px 28px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
      border: 1px solid var(--color-border);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0;
      width: 100%; height: 3px;
      background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
      transform: scaleX(0);
      transform-origin: left;
      transition: var(--transition);
    }

    .service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
    .service-card:hover::before { transform: scaleX(1); }

    .service-icon {
      width: 52px;
      height: 52px;
      border-radius: 13px;
      background: linear-gradient(135deg, rgba(21,43,82,.12), rgba(21,43,82,.05));
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      transition: var(--transition);
    }
    .service-card:hover .service-icon {
      background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    }
    .service-card:hover .service-icon svg {
      stroke: #fff;
    }

    .service-card h3 {
      font-family: var(--font-display);
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--color-dark);
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: .9rem;
      color: var(--color-muted);
      line-height: 1.7;
    }

    /* ===== WHY CHOOSE US (mini strip) ===== */
    .why-strip {
      padding: 70px 0;
      background: var(--color-dark);
      color: #fff;
    }

    .why-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 40px;
      text-align: center;
    }

    .why-item svg { width: 36px; height: 36px; stroke: var(--color-accent-light); margin-bottom: 16px; }

    .why-item h4 {
      font-family: var(--font-display);
      font-size: 1.05rem;
      font-weight: 500;
      margin-bottom: 8px;
    }

    .why-item p { font-size: .85rem; color: rgba(255,255,255,.6); line-height: 1.7; }

    /* ===== CONTACT ===== */
    #contact {
      padding: var(--section-py) 0;
      background: var(--color-surface);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
    }

    .contact-info-cards { display: flex; flex-direction: column; gap: 20px; }

    .contact-card {
      display: flex;
      align-items: flex-start;
      gap: 18px;
      padding: 24px;
      background: var(--color-bg);
      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
      transition: var(--transition);
    }
    .contact-card:hover { box-shadow: var(--shadow-soft); }

    .contact-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .contact-card-icon svg { width: 22px; height: 22px; stroke: #fff; fill: none; }

    .contact-card h4 {
      font-size: .92rem;
      font-weight: 600;
      color: var(--color-dark);
      margin-bottom: 4px;
    }

    .contact-card p {
      font-size: .88rem;
      color: var(--color-muted);
      line-height: 1.6;
    }

    .contact-card a { color: var(--color-accent); font-weight: 500; }
    .contact-card a:hover { text-decoration: underline; }

    .contact-form { display: flex; flex-direction: column; gap: 18px; }

    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

    .form-group { display: flex; flex-direction: column; gap: 6px; }

    .form-group label {
      font-size: .82rem;
      font-weight: 500;
      color: var(--color-dark);
      letter-spacing: .3px;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
      padding: 14px 18px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-body);
      font-size: .92rem;
      color: var(--color-dark);
      background: var(--color-bg);
      transition: var(--transition);
      outline: none;
    }

    .form-group input:focus,
    .form-group textarea:focus,
    .form-group select:focus {
      border-color: var(--color-accent);
      box-shadow: 0 0 0 3px rgba(21,43,82,.1);
    }

    .form-group textarea { resize: vertical; min-height: 120px; }

    /* ===== FOOTER ===== */
    .footer {
      background: var(--color-surface);
      color: var(--color-muted);
      border-top: 1px solid var(--color-border);
      padding: 60px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand p { font-size: .88rem; line-height: 1.8; margin-top: 16px; max-width: 320px; }

    .footer-brand img {
      height: 48px;
      width: auto;
      border-radius: 6px;
    }

    .footer h4 {
      font-family: var(--font-display);
      font-size: 1rem;
      font-weight: 500;
      color: var(--color-dark);
      margin-bottom: 20px;
    }

    .footer ul li { margin-bottom: 10px; }
    .footer ul li a {
      font-size: .88rem;
      color: var(--color-muted);
      transition: var(--transition);
    }
    .footer ul li a:hover { color: var(--color-accent); padding-left: 4px; }

    .footer-bottom {
      border-top: 1px solid var(--color-border);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

    .footer-bottom p { font-size: .82rem; color: var(--color-muted); }

    .footer-socials { display: flex; gap: 16px; }
    .footer-socials a {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: 1px solid var(--color-border);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
    }
    .footer-socials a:hover { background: var(--color-accent); border-color: var(--color-accent); }
    .footer-socials a svg { width: 18px; height: 18px; fill: var(--color-muted); }
    .footer-socials a:hover svg { fill: #fff; }

    /* ===== WHATSAPP FLOAT ===== */
    .whatsapp-float {
      position: fixed;
      bottom: 28px;
      right: 28px;
      z-index: 999;
      width: 60px;
      height: 60px;
      background: #25D366;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 24px rgba(37,211,102,.4);
      transition: var(--transition);
      animation: pulse-wa 2s infinite;
    }
    .whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 32px rgba(37,211,102,.5); }
    .whatsapp-float svg { width: 30px; height: 30px; fill: #fff; }

    @keyframes pulse-wa {
      0%, 100% { box-shadow: 0 4px 24px rgba(37,211,102,.4); }
      50% { box-shadow: 0 4px 36px rgba(37,211,102,.6); }
    }

    /* ===== SCROLL ANIMATIONS ===== */
    .reveal {
      opacity: 0;
      transform: translateY(40px);
      transition: opacity .9s cubic-bezier(.215,.61,.355,1), transform .9s cubic-bezier(.215,.61,.355,1);
    }
    .reveal.visible { opacity: 1; transform: translateY(0); }

    /* Staggered delays for grid children */
    .stones-grid .reveal:nth-child(1),
    .services-grid .reveal:nth-child(1),
    .why-grid .reveal:nth-child(1) { transition-delay: 0s; }
    .stones-grid .reveal:nth-child(2),
    .services-grid .reveal:nth-child(2),
    .why-grid .reveal:nth-child(2) { transition-delay: .1s; }
    .stones-grid .reveal:nth-child(3),
    .services-grid .reveal:nth-child(3),
    .why-grid .reveal:nth-child(3) { transition-delay: .2s; }
    .stones-grid .reveal:nth-child(4),
    .services-grid .reveal:nth-child(4),
    .why-grid .reveal:nth-child(4) { transition-delay: .3s; }
    .stones-grid .reveal:nth-child(5),
    .services-grid .reveal:nth-child(5),
    .why-grid .reveal:nth-child(5) { transition-delay: .4s; }
    .stones-grid .reveal:nth-child(6),
    .services-grid .reveal:nth-child(6) { transition-delay: .5s; }
    .stones-grid .reveal:nth-child(7),
    .services-grid .reveal:nth-child(7) { transition-delay: .6s; }
    .stones-grid .reveal:nth-child(8),
    .services-grid .reveal:nth-child(8) { transition-delay: .7s; }
    .stones-grid .reveal:nth-child(9),
    .services-grid .reveal:nth-child(9) { transition-delay: .8s; }
    .stones-grid .reveal:nth-child(10),
    .services-grid .reveal:nth-child(10) { transition-delay: .9s; }
    .services-grid .reveal:nth-child(11) { transition-delay: 1s; }

    /* About stats stagger */
    .about-stats .stat-item:nth-child(1) { transition-delay: .1s; }
    .about-stats .stat-item:nth-child(2) { transition-delay: .25s; }
    .about-stats .stat-item:nth-child(3) { transition-delay: .4s; }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 1024px) {
      .about-grid { grid-template-columns: 1fr; gap: 40px; }
      .about-image img { height: 340px; }
      .contact-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      :root { --section-py: 70px; }

      .nav-links {
        position: fixed;
        top: 0; right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-dark);
        flex-direction: column;
        justify-content: flex-start;
        gap: 0;
        padding: 0 40px 40px;
        transition: var(--transition);
        box-shadow: -8px 0 40px rgba(0,0,0,.3);
      }
      .nav-links .mobile-logo {
        display: block;
        padding: 32px 0 40px;
        border-bottom: 1px solid rgba(255,255,255,.1);
        margin-bottom: 36px;
      }
      .nav-links .mobile-logo img {
        height: 52px;
        width: auto;
        border-radius: 6px;
      }
      .nav-links li { margin-bottom: 8px; }
      .nav-links.open { right: 0; }
      .nav-links a { color: rgba(255,255,255,.85) !important; font-size: 1.1rem; display: block; padding: 12px 0; }
      .nav-toggle { display: flex; }

      .hero h1 { font-size: clamp(1.8rem, 7vw, 2.8rem); }

      .about-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
      .stat-number { font-size: 1.5rem; }
      .stat-item { padding: 18px 8px; }

      .form-row { grid-template-columns: 1fr; }

      .footer-grid { grid-template-columns: 1fr; gap: 32px; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }

    @media (max-width: 480px) {
      .hero-buttons { flex-direction: column; align-items: center; }
      .whatsapp-float { bottom: 20px; right: 20px; width: 54px; height: 54px; }
      .whatsapp-float svg { width: 26px; height: 26px; }
    }

    /* Mobile overlay for menu */
    .nav-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,.5);
      z-index: 998;
    }
    .nav-overlay.show { display: block; }

    /* ===== SLIDER ===== */
    #stones  { padding: var(--section-py) 0; background: var(--color-surface); }
    #services { padding: var(--section-py) 0; }

    .slider-header {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      margin-bottom: 36px;
      gap: 20px;
    }
    .slider-viewall-btn {
      flex-shrink: 0;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: .88rem;
      font-weight: 600;
      color: var(--color-dark);
      border: 1.5px solid var(--color-border);
      padding: 10px 22px;
      border-radius: 50px;
      transition: var(--transition);
      white-space: nowrap;
      margin-bottom: 6px;
    }
    .slider-viewall-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }

    .slider-wrap {
      position: relative;
      display: flex;
      align-items: center;
      gap: 0;
    }
    .slider-overflow {
      overflow: hidden;
      width: 100%;
    }
    .slider-track {
      display: flex;
      gap: 20px;
      transition: transform .5s cubic-bezier(.4,0,.2,1);
      will-change: transform;
    }

    /* Arrow buttons */
    .slider-arrow {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #fff;
      border: 1.5px solid var(--color-border);
      font-size: 1.6rem;
      line-height: 1;
      color: var(--color-dark);
      cursor: pointer;
      transition: var(--transition);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-soft);
      z-index: 2;
      position: relative;
    }
    .slider-arrow:hover { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
    .slider-arrow:disabled { opacity: .3; cursor: default; pointer-events: none; }
    .slider-prev { margin-right: 12px; }
    .slider-next { margin-left: 12px; }

    /* Dots */
    .slider-dots {
      display: flex;
      justify-content: center;
      gap: 8px;
      margin-top: 28px;
    }
    .slider-dots button {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-border);
      border: none;
      padding: 0;
      cursor: pointer;
      transition: all .3s ease;
    }
    .slider-dots button.active {
      background: var(--color-accent);
      width: 28px;
      border-radius: 4px;
    }

    /* Slider cards — stone */
    .scard {
      flex: 0 0 calc(25% - 15px);
      min-width: calc(25% - 15px);
      background: var(--color-surface);
      border-radius: var(--radius);
      border: 1px solid var(--color-border);
      overflow: hidden;
      cursor: pointer;
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
      box-shadow: var(--shadow-soft);
    }
    .scard:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .scard-img { width: 100%; aspect-ratio: 4/3; overflow: hidden; }
    .scard-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
    .scard:hover .scard-img img { transform: scale(1.05); }
    .scard-body { padding: 18px 20px 22px; }
    .scard-label {
      font-size: .7rem;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--color-muted);
      display: block;
      margin-bottom: 6px;
    }
    .scard-title {
      font-family: var(--font-display);
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--color-dark);
      margin-bottom: 8px;
      line-height: 1.3;
    }
    .scard-desc {
      font-size: .84rem;
      color: var(--color-muted);
      line-height: 1.65;
    }

    /* Service card variant */
    .scard-service {
      flex: 0 0 calc(25% - 15px);
      min-width: calc(25% - 15px);
      display: flex;
      flex-direction: column;
    }
    .scard-svc-icon {
      width: 56px;
      height: 56px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(21,43,82,.1), rgba(21,43,82,.04));
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 24px 20px 0;
      flex-shrink: 0;
    }
    .scard-svc-icon svg { stroke: var(--color-accent); }
    .scard-service .scard-body { flex: 1; padding-top: 16px; }

    /* Top accent bar on service cards on hover */
    .scard-service { position: relative; }
    .scard-service::before {
      content: '';
      position: absolute;
      top: 0; left: 0;
      width: 100%; height: 3px;
      background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
      transform: scaleX(0);
      transform-origin: left;
      transition: var(--transition);
      border-radius: var(--radius) var(--radius) 0 0;
    }
    .scard-service:hover::before { transform: scaleX(1); }

    /* Responsive */
    @media (max-width: 1024px) {
      .scard, .scard-service { flex: 0 0 calc(33.333% - 14px); min-width: calc(33.333% - 14px); }
    }
    @media (max-width: 768px) {
      .scard, .scard-service { flex: 0 0 calc(50% - 10px); min-width: calc(50% - 10px); }
      .slider-header { align-items: flex-start; flex-direction: row; }
    }
    /* Mobile: show exactly 1 card */
    @media (max-width: 560px) {
      .scard, .scard-service { flex: 0 0 100%; min-width: 100%; }
      .slider-arrow { width: 36px; height: 36px; font-size: 1.4rem; }
      .slider-prev { margin-right: 6px; }
      .slider-next { margin-left: 6px; }
      /* Tighter body text so card doesn't get too tall */
      .scard-desc { font-size: .82rem; }
    }

    /* ===== SLIDER CARDS ===== */
    /* Stone slider card — image top, text below */
    .slider-card {
      flex-shrink: 0;
      border-radius: var(--radius);
      overflow: hidden;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      transition: var(--transition);
      display: block;
      text-decoration: none;
      cursor: pointer;
    }
    .slider-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
    .slider-card-img { overflow: hidden; aspect-ratio: 4/3; }
    .slider-card-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
    .slider-card:hover .slider-card-img img { transform: scale(1.06); }
    .slider-card-body { padding: 16px 18px 20px; }
    .slider-card-label { font-size: .7rem; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: var(--color-muted); margin-bottom: 6px; }
    .slider-card-name { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; color: var(--color-dark); margin-bottom: 8px; line-height: 1.3; }
    .slider-card-desc { font-size: .83rem; color: var(--color-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

    /* Service slider card */
    .slider-service-card {
      flex-shrink: 0;
      background: var(--color-surface);
      padding: 36px 28px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
      border: 1px solid var(--color-border);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .slider-service-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light)); transform: scaleX(0); transform-origin: left; transition: var(--transition); }
    .slider-service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
    .slider-service-card:hover::before { transform: scaleX(1); }
    .slider-service-card .service-icon { width: 52px; height: 52px; border-radius: 14px; background: linear-gradient(135deg, rgba(21,43,82,.12), rgba(21,43,82,.05)); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
    .slider-service-card h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; color: var(--color-dark); margin-bottom: 10px; }
    .slider-service-card p { font-size: .88rem; color: var(--color-muted); line-height: 1.7; }

    /* ===== PAGE HERO (sub-pages) ===== */
    .page-hero {
      padding: 160px 0 80px;
      background:
        linear-gradient(135deg, rgba(10,27,54,.92) 0%, rgba(21,43,82,.85) 100%),
        url('https://images.unsplash.com/photo-1618220179428-22790b461013?w=1600&q=80') center/cover no-repeat;
      text-align: center;
      color: #fff;
      position: relative;
    }
    .page-hero h1 {
      font-family: var(--font-display);
      font-size: clamp(2rem, 5vw, 3.5rem);
      font-weight: 600;
      color: #fff;
      margin-bottom: 16px;
    }
    .page-hero p {
      font-size: 1.05rem;
      color: rgba(255,255,255,.75);
      max-width: 560px;
      margin: 0 auto;
      line-height: 1.8;
    }
    .page-hero .section-label { color: rgba(255,255,255,.6); }

/* ============================================================
   NEW SECTIONS — Gallery, Testimonials, FAQ, CTA Banner,
   Text+Image, Team, Video, Partners
   ============================================================ */

/* ---------- GALLERY ---------- */
.gallery-section { padding: 80px 0; }
.gallery-grid { display: grid; gap: 16px; }
.gallery-grid.columns-2 { grid-template-columns: repeat(2, 1fr); }
.gallery-grid.columns-3 { grid-template-columns: repeat(3, 1fr); }
.gallery-grid.columns-4 { grid-template-columns: repeat(4, 1fr); }
.variant-masonry .gallery-grid { display: block; column-gap: 16px; }
.variant-masonry .gallery-item { break-inside: avoid; margin-bottom: 16px; }
.gallery-item { position: relative; border-radius: 10px; overflow: hidden; cursor: pointer; }
.gallery-item img { width: 100%; display: block; transition: transform .4s; }
.gallery-item:hover img { transform: scale(1.05); }
.gallery-overlay { position: absolute; inset: 0; background: linear-gradient(transparent 50%, rgba(0,0,0,.7)); display: flex; align-items: flex-end; padding: 16px; opacity: 0; transition: opacity .3s; }
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-caption { color: #fff; font-size: .9rem; font-weight: 500; }

/* Lightbox */
.lightbox { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.92); z-index: 9999; align-items: center; justify-content: center; padding: 40px; }
.lightbox.active { display: flex; flex-direction: column; }
.lightbox img { max-width: 90vw; max-height: 80vh; border-radius: 8px; object-fit: contain; }
.lightbox-close { position: absolute; top: 20px; right: 24px; background: none; border: none; color: #fff; font-size: 2.5rem; cursor: pointer; z-index: 10; }
.lightbox-caption { color: rgba(255,255,255,.8); margin-top: 16px; font-size: 1rem; text-align: center; }

/* ---------- TESTIMONIALS ---------- */
.testimonials-section { padding: 80px 0; }
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.testimonial-card { background: #fff; border: 1px solid var(--color-border); border-radius: 12px; padding: 32px; }
.testimonial-rating { color: #f59e0b; font-size: 1.1rem; margin-bottom: 12px; letter-spacing: 2px; }
.testimonial-quote { font-size: 1rem; line-height: 1.7; color: var(--color-text-light); margin-bottom: 20px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.testimonial-avatar-placeholder { width: 44px; height: 44px; border-radius: 50%; background: var(--color-accent); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.1rem; flex-shrink: 0; }
.testimonial-author strong { display: block; font-size: .95rem; color: var(--color-text); }
.testimonial-author span { font-size: .85rem; color: var(--color-text-light); }

/* Testimonials minimal */
.testimonials-minimal .testimonial-minimal-item { border-left: 3px solid var(--color-accent); padding: 16px 0 16px 24px; margin-bottom: 24px; }
.testimonials-minimal blockquote { font-size: 1.05rem; line-height: 1.7; color: var(--color-text); font-style: italic; margin-bottom: 8px; }
.testimonials-minimal cite { font-size: .9rem; color: var(--color-text-light); font-style: normal; }

/* ---------- FAQ ---------- */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 800px; margin: 0 auto; }
.variant-two_column .faq-list { max-width: 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.faq-item { border: 1px solid var(--color-border); border-radius: 10px; margin-bottom: 12px; overflow: hidden; background: #fff; }
.faq-boxed { box-shadow: 0 2px 8px rgba(0,0,0,.06); }
.faq-question { width: 100%; text-align: left; padding: 18px 20px; background: none; border: none; font-size: 1rem; font-weight: 600; color: var(--color-text); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; font-family: inherit; }
.faq-question:hover { color: var(--color-accent); }
.faq-icon { transition: transform .3s; flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .35s ease; padding: 0 20px; }
.faq-item.open .faq-answer { max-height: 500px; padding: 0 20px 18px; }
.faq-answer p { font-size: .95rem; line-height: 1.7; color: var(--color-text-light); }

/* ---------- CTA BANNER ---------- */
.cta-banner-section { padding: 80px 0; text-align: center; position: relative; overflow: hidden; }
.cta-banner-section.variant-gradient { background: linear-gradient(135deg, var(--color-accent), #1a1a2e); color: #fff; }
.cta-banner-section.variant-image_bg { background-size: cover; background-position: center; color: #fff; }
.cta-overlay { position: absolute; inset: 0; background: rgba(0,0,0,.65); }
.cta-banner-section .container { position: relative; z-index: 1; }
.cta-content h2 { font-family: var(--font-display); font-size: 2.2rem; margin-bottom: 16px; }
.cta-content p { font-size: 1.1rem; max-width: 600px; margin: 0 auto 28px; opacity: .9; line-height: 1.7; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-btn-primary { display: inline-block; padding: 14px 32px; background: #fff; color: var(--color-accent); border-radius: 8px; text-decoration: none; font-weight: 700; transition: transform .2s, box-shadow .2s; }
.cta-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,.2); }
.cta-btn-secondary { display: inline-block; padding: 14px 32px; background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.5); border-radius: 8px; text-decoration: none; font-weight: 600; transition: background .2s, border-color .2s; }
.cta-btn-secondary:hover { background: rgba(255,255,255,.1); border-color: #fff; }

/* CTA Split */
.cta-split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; text-align: left; }
.cta-split-text h2 { font-family: var(--font-display); font-size: 2rem; margin-bottom: 16px; }
.cta-split-text p { font-size: 1rem; line-height: 1.7; color: var(--color-text-light); margin-bottom: 24px; }
.cta-split .cta-buttons { justify-content: flex-start; }
.cta-split-image img { width: 100%; border-radius: 12px; }

/* ---------- TEXT WITH IMAGE ---------- */
.text-image-section { padding: 80px 0; }
.text-image-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.variant-image_left .text-image-media { order: -1; }
.variant-image_top .text-image-grid { grid-template-columns: 1fr; }
.variant-image_top .text-image-media { order: -1; }
.text-image-media img { width: 100%; border-radius: 12px; }
.text-image-content p { font-size: 1.05rem; line-height: 1.8; color: var(--color-text-light); margin-top: 16px; }

/* ---------- TEAM ---------- */
.team-section { padding: 80px 0; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 32px; }
.variant-compact .team-grid { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; }
.team-member { text-align: center; }
.team-photo { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; margin: 0 auto 16px; display: block; }
.variant-cards .team-member { background: #fff; border: 1px solid var(--color-border); border-radius: 12px; padding: 32px 24px; }
.variant-cards .team-photo { width: 100px; height: 100px; }
.team-photo-placeholder { width: 120px; height: 120px; border-radius: 50%; background: var(--color-accent); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 2.5rem; font-weight: 700; margin: 0 auto 16px; }
.variant-compact .team-photo, .variant-compact .team-photo-placeholder { width: 80px; height: 80px; font-size: 1.8rem; }
.team-name { font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 4px; }
.team-role { display: block; font-size: .9rem; color: var(--color-accent); margin-bottom: 8px; }
.team-bio { font-size: .9rem; color: var(--color-text-light); line-height: 1.6; }

/* ---------- VIDEO SECTION ---------- */
.video-section { padding: 80px 0; }
.video-responsive { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 12px; }
.video-responsive iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
.video-embed { max-width: 900px; margin: 0 auto; }
.variant-fullwidth .video-embed { max-width: 100%; }
.video-side-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.video-side-grid .video-embed { max-width: 100%; }
.video-text .section-title { margin-bottom: 16px; }
.video-text p { font-size: 1.05rem; line-height: 1.8; color: var(--color-text-light); }

/* ---------- PARTNERS LOGOS ---------- */
.partners-section { padding: 60px 0; }
.partners-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 24px; align-items: center; justify-items: center; }
.partner-item { display: flex; align-items: center; justify-content: center; padding: 16px; }
.partner-logo { max-height: 50px; max-width: 140px; filter: grayscale(1); opacity: .6; transition: filter .3s, opacity .3s; }
.partner-logo:hover { filter: grayscale(0); opacity: 1; }
.partner-logo-placeholder { padding: 12px 20px; border: 1px solid var(--color-border); border-radius: 8px; color: var(--color-text-light); font-weight: 600; font-size: .9rem; white-space: nowrap; }

/* Partners scroll (marquee) */
.partners-scroll { overflow: hidden; position: relative; }
.partners-track { display: flex; gap: 48px; align-items: center; animation: partnerScroll 20s linear infinite; }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.partners-scroll:hover .partners-track { animation-play-state: paused; }

/* Partners minimal */
.partners-minimal { display: flex; align-items: center; justify-content: center; gap: 24px; flex-wrap: wrap; }
.partners-separator { color: var(--color-border); font-size: 1.2rem; }
.partner-name { font-size: 1rem; font-weight: 600; color: var(--color-text-light); }

/* ============================================================
   RESPONSIVE — New Sections
   ============================================================ */
@media (max-width: 1024px) {
    .gallery-grid.columns-4 { grid-template-columns: repeat(3, 1fr); }
    .variant-masonry .gallery-grid { column-count: 2; }
    .cta-split { grid-template-columns: 1fr; gap: 32px; }
    .cta-split-text { text-align: center; }
    .cta-split .cta-buttons { justify-content: center; }
    .video-side-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    .gallery-section, .testimonials-section, .faq-section,
    .cta-banner-section, .text-image-section, .team-section,
    .video-section, .partners-section { padding: 60px 0; }

    .gallery-grid.columns-3, .gallery-grid.columns-4 { grid-template-columns: repeat(2, 1fr); }
    .variant-masonry .gallery-grid { column-count: 2; }

    .testimonials-grid { grid-template-columns: 1fr; }
    .testimonial-card { padding: 24px; }

    .variant-two_column .faq-list { grid-template-columns: 1fr; }

    .cta-content h2 { font-size: 1.7rem; }
    .cta-content p { font-size: 1rem; }

    .text-image-grid { grid-template-columns: 1fr; gap: 32px; }
    .variant-image_left .text-image-media { order: -1; }

    .team-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }

    .video-side-grid { grid-template-columns: 1fr; gap: 24px; }

    .partners-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 480px) {
    .gallery-grid.columns-2, .gallery-grid.columns-3, .gallery-grid.columns-4 { grid-template-columns: 1fr; }
    .variant-masonry .gallery-grid { column-count: 1; }

    .team-grid { grid-template-columns: 1fr; }
    .team-photo, .team-photo-placeholder { width: 100px; height: 100px; }

    .cta-content h2 { font-size: 1.4rem; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .cta-btn-primary, .cta-btn-secondary { width: 100%; text-align: center; }

    .partners-grid { grid-template-columns: repeat(2, 1fr); }

    .lightbox { padding: 20px; }
    .lightbox img { max-width: 95vw; max-height: 70vh; }
}

/* ============================================================
   STONE DETAIL PAGE
   ============================================================ */
.stone-hero {
    width: 100%;
    max-height: 60vh;
    overflow: hidden;
    position: relative;
}
.stone-hero img {
    width: 100%;
    height: 60vh;
    object-fit: cover;
    display: block;
}
.stone-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(21,43,82,.75) 0%, rgba(21,43,82,.2) 40%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 48px;
}
.stone-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    color: #fff;
    letter-spacing: -.5px;
    line-height: 1.1;
}
.stone-hero-subtitle {
    font-size: .85rem;
    color: rgba(255,255,255,.7);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 8px;
}
.stone-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-size: .82rem;
}
.stone-breadcrumb a {
    color: rgba(255,255,255,.65);
    transition: color .2s;
}
.stone-breadcrumb a:hover { color: #fff; }
.stone-breadcrumb .sep { color: rgba(255,255,255,.4); }
.stone-breadcrumb .current { color: rgba(255,255,255,.9); font-weight: 500; }

.stone-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 56px 24px 80px;
}
.stone-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 48px;
}
.spec-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 20px 22px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.spec-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}
.spec-card:hover {
    box-shadow: var(--shadow-soft);
    border-color: rgba(21,43,82,.2);
    transform: translateY(-2px);
}
.spec-card:hover::before { transform: scaleX(1); }
.spec-label {
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent-light);
    margin-bottom: 6px;
}
.spec-value {
    font-size: .92rem;
    font-weight: 500;
    color: var(--color-dark);
    line-height: 1.5;
}

.stone-section-label {
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-accent-light);
    margin-bottom: 10px;
    display: block;
}
.stone-desc-title {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3vw, 1.9rem);
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 20px;
    line-height: 1.25;
}
.stone-desc-body {
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.85;
    margin-bottom: 40px;
}
.stone-desc-body p + p { margin-top: 16px; }

.features-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 20px;
}
.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 12px;
    margin-bottom: 56px;
    list-style: none;
}
.features-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    font-size: .92rem;
    font-weight: 500;
    color: var(--color-dark);
    transition: var(--transition);
}
.features-list li:hover {
    border-color: rgba(21,43,82,.25);
    box-shadow: var(--shadow-soft);
    transform: translateX(4px);
}
.features-list li::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
    flex-shrink: 0;
    margin-top: 5px;
}

.stone-cta {
    background: linear-gradient(135deg, #0A1B36 0%, #152B52 50%, #2856A3 100%);
    border-radius: var(--radius);
    padding: 48px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.stone-cta::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -10%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255,255,255,.04);
}
.stone-cta::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -5%;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: rgba(255,255,255,.03);
}
.stone-cta h3 {
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    font-weight: 600;
    color: #fff;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}
.stone-cta p {
    font-size: .95rem;
    color: rgba(255,255,255,.75);
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}
.stone-cta .cta-buttons {
    position: relative;
    z-index: 1;
}
.btn-cta-white {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    background: #fff;
    color: var(--color-accent);
    font-family: var(--font-body);
    font-size: .9rem;
    font-weight: 600;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 3px 0 rgba(0,0,0,.15), 0 6px 20px rgba(0,0,0,.2);
}
.btn-cta-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 0 rgba(0,0,0,.12), 0 10px 28px rgba(0,0,0,.25);
}
.btn-cta-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    background: transparent;
    color: #fff;
    font-family: var(--font-body);
    font-size: .9rem;
    font-weight: 500;
    border-radius: 50px;
    border: 1.5px solid rgba(255,255,255,.5);
    cursor: pointer;
    transition: var(--transition);
}
.btn-cta-ghost:hover {
    background: rgba(255,255,255,.12);
    border-color: #fff;
}

/* Stone detail responsive */
@media (max-width: 768px) {
    .stone-hero img { height: 50vw; min-height: 260px; }
    .stone-hero-overlay { padding: 24px; }
    .stone-content { padding: 36px 18px 60px; }
    .stone-cta { padding: 36px 24px; }
}
@media (max-width: 480px) {
    .stone-hero img { height: 56vw; min-height: 220px; }
    .stone-cta .cta-buttons { flex-direction: column; align-items: center; }
}