:root {
            --stone-primary: #0284c7;
            --stone-primary-dark: #0369a1;
            --stone-primary-light: #f0f9ff;
            --stone-navy: #0f172a;
            --stone-slate: #334155;
            --stone-muted: #64748b;
            --stone-border: #e2e8f0;
            --stone-bg-light: #f8fafc;
            --stone-white: #ffffff;
            --stone-success: #0d9488;
            --stone-warning-bg: #fffbeb;
            --stone-warning-border: #fcd34d;
            --stone-warning-text: #b45309;
            
            --stone-font-heading: 'Lora', serif;
            --stone-font-body: 'DM Sans', sans-serif;
            --stone-max-width: 1200px;
            --stone-transition: all 0.3s ease;
        }

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

        body.stone-page-body {
            font-family: var(--stone-font-body);
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--stone-slate);
            background: var(--stone-bg-light);
        }

        body.stone-page-body img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .stone-container {
            width: 100%;
            max-width: var(--stone-max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 1. HERO SECTION */
        .stone-hero-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: var(--stone-white);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .stone-hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 50px;
            align-items: center;
        }

        .stone-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(2, 132, 199, 0.2);
            color: #38bdf8;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 20px;
            border: 1px solid rgba(56, 189, 248, 0.3);
            font-family: var(--stone-font-body);
        }

        .stone-hero-content h1 {
            font-family: var(--stone-font-heading);
            font-size: clamp(2.2rem, 4vw, 3.2rem);
            font-weight: 700;
            line-height: 1.2;
            color: var(--stone-white);
            margin-bottom: 16px;
        }

        .stone-hero-content p {
            font-size: 1.1rem;
            color: #94a3b8;
            line-height: 1.6;
        }

        .stone-hero-image-wrapper {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            border: 3px solid rgba(255, 255, 255, 0.1);
            background: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .stone-hero-image-wrapper img {
            width: 100%;
            height: 340px;
            object-fit: contain;
            transition: var(--stone-transition);
        }

        .stone-hero-image-wrapper:hover img {
            transform: scale(1.03);
        }

        /* 2. GENERAL SECTION STYLING */
        .stone-content-section {
            padding: 70px 0;
            background: var(--stone-white);
            border-bottom: 1px solid var(--stone-border);
        }

        .stone-content-section:nth-child(even) {
            background: #f1f5f9;
        }

        .stone-section-title {
            font-family: var(--stone-font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--stone-navy);
            margin-bottom: 24px;
            position: relative;
            display: inline-block;
        }

        .stone-section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -6px;
            width: 50px;
            height: 4px;
            background: var(--stone-primary);
            border-radius: 2px;
        }

        p.stone-section-desc {
            margin-bottom: 20px;
            color: var(--stone-slate);
            font-size: 1.05rem;
        }

        /* 3. FEATURE CARDS GRID */
        .stone-cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 25px;
        }

        .stone-custom-card {
            background: var(--stone-white);
            border: 1px solid var(--stone-border);
            border-radius: 14px;
            padding: 24px;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
            transition: var(--stone-transition);
            position: relative;
            overflow: hidden;
        }

        .stone-custom-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--stone-primary);
        }

        .stone-custom-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 20px -3px rgba(2, 132, 199, 0.1);
            border-color: #bae6fd;
        }

        .stone-custom-card p {
            font-size: 1rem;
            color: var(--stone-slate);
            font-weight: 500;
            margin: 0;
        }

        /* 4. WARNING / NOTE CALLOUT */
        .stone-alert-callout {
            background: linear-gradient(135deg, var(--stone-warning-bg) 0%, #fef3c7 100%);
            border: 1px solid var(--stone-warning-border);
            border-left: 6px solid #f59e0b;
            padding: 24px 30px;
            border-radius: 12px;
            margin: 30px 0;
        }

        .stone-alert-callout h3 {
            font-family: var(--stone-font-heading);
            color: var(--stone-warning-text);
            font-size: 1.25srem;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .stone-alert-callout p {
            color: #78350f;
            margin: 0;
        }

        /* 5. STEP TIMELINE FOR PREPARATION & PROCEDURE */
        .stone-timeline-container {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 25px;
        }

        .stone-timeline-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--stone-white);
            padding: 22px 24px;
            border-radius: 12px;
            border: 1px solid var(--stone-border);
            box-shadow: 0 2px 4px rgba(0,0,0,0.02);
            transition: var(--stone-transition);
        }

        .stone-timeline-item:hover {
            border-color: var(--stone-primary);
            box-shadow: 0 6px 15px rgba(2, 132, 199, 0.06);
        }

        .stone-timeline-number {
            width: 36px;
            height: 36px;
            background: var(--stone-primary-light);
            color: var(--stone-primary);
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-family: var(--stone-font-heading);
        }

        .stone-timeline-text {
            font-size: 1.02rem;
            color: var(--stone-slate);
            font-weight: 500;
            line-height: 1.6;
            margin-top: 5px;
        }

        /* 6. TESTS BADGES GRID */
        .stone-tests-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 16px;
            margin-top: 25px;
        }

        .stone-test-badge {
            background: var(--stone-white);
            border: 1px solid #cbd5e1;
            padding: 18px 20px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 600;
            color: var(--stone-navy);
            box-shadow: 0 2px 4px rgba(0,0,0,0.02);
        }

        .stone-test-badge i {
            color: var(--stone-primary);
            font-size: 1.2rem;
        }

        /* 7. COMPARISON TABLE */
        .stone-table-responsive {
            width: 100%;
            overflow-x: auto;
            margin-top: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            border: 1px solid var(--stone-border);
        }

        .stone-comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: var(--stone-white);
            font-size: 1rem;
        }

        .stone-comparison-table th, .stone-comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--stone-border);
        }

        .stone-comparison-table th {
            background: var(--stone-navy);
            color: var(--stone-white);
            font-family: var(--stone-font-heading);
            font-weight: 700;
        }

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

        .stone-comparison-table tr:nth-child(even) {
            background: #f8fafc;
        }

        .stone-comparison-table td:first-child {
            font-weight: 700;
            color: var(--stone-navy);
        }

        /* 8. BENEFITS ACCENT CARDS */
        .stone-benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 20px;
            margin-top: 25px;
        }

        .stone-benefit-card {
            background: var(--stone-white);
            border: 1px solid var(--stone-border);
            border-radius: 14px;
            padding: 30px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            transition: var(--stone-transition);
        }

        .stone-benefit-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 25px rgba(2, 132, 199, 0.08);
            border-color: #bae6fd;
        }

        .stone-benefit-icon {
            width: 50px;
            height: 50px;
            background: var(--stone-primary-light);
            color: var(--stone-primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 20px;
        }

        .stone-benefit-card h3 {
            font-family: var(--stone-font-heading);
            font-size: 1.25rem;
            color: var(--stone-navy);
            margin-bottom: 12px;
        }

        .stone-benefit-card p {
            color: var(--stone-slate);
            font-size: 1rem;
            margin: 0;
            line-height: 1.6;
        }

        /* 9. REDESIGNED CTA BANNER SECTION WITH BUTTON */
        .stone-cta-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: var(--stone-white);
            padding: 90px 0;
            position: relative;
            overflow: hidden;
        }

        .stone-cta-box {
            background: linear-gradient(135deg, rgba(2, 132, 199, 0.15) 0%, rgba(15, 23, 42, 0.8) 100%);
            border: 1px solid rgba(56, 189, 248, 0.2);
            border-radius: 24px;
            padding: 50px 40px;
            text-align: center;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            position: relative;
        }

        .stone-cta-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(13, 148, 136, 0.2);
            color: #2dd4bf;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 20px;
            border: 1px solid rgba(45, 212, 191, 0.3);
            font-family: var(--stone-font-body);
        }

        .stone-cta-box h2 {
            font-family: var(--stone-font-heading);
            font-size: clamp(2rem, 3.5vw, 2.8rem);
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--stone-white);
        }

        .stone-cta-box p {
            font-size: 1.1rem;
            line-height: 1.8;
            color: #94a3b8;
            max-width: 800px;
            margin: 0 auto 35px auto;
        }

        .stone-btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: var(--stone-primary);
            color: var(--stone-white);
            padding: 16px 36px;
            border-radius: 50px;
            font-family: var(--stone-font-body);
            font-size: 1.1rem;
            font-weight: 700;
            text-decoration: none;
            box-shadow: 0 8px 20px rgba(2, 132, 199, 0.4);
            transition: var(--stone-transition);
            border: 2px solid transparent;
        }

        .stone-btn-primary:hover {
            background: var(--stone-primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 25px rgba(2, 132, 199, 0.6);
        }

        /* Responsive */
        @media (max-width: 900px) {
            .stone-hero-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .stone-hero-badge {
                margin: 0 auto 20px auto;
            }
            .stone-section-title::after {
                left: 50%;
                transform: translateX(-50%);
            }
            .stone-content-section {
                text-align: left;
            }
            .stone-cta-box {
                padding: 35px 20px;
            }
        }