:root {
            --spb-primary: #f59e0b; /* Construction Orange */
            --spb-secondary: #1e293b; /* Dark Slate */
            --spb-text: #334155;
            --spb-heading: #0f172a;
            --spb-bg: #f8fafc;
            --spb-white: #ffffff;
            --spb-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --spb-border: #e2e8f0;
        }

        /* body {
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--spb-bg);
            color: var(--spb-text);
            line-height: 1.7;
        } */

        .spb-page-container {
            max-width: 1300px;
            margin: 60px auto;
            padding: 0 5%;
        }

        /* Main Grid Structure */
        .spb-main-layout {
            display: grid;
            grid-template-columns: 1fr 400px;
            gap: 60px;
            align-items: flex-start;
        }

        /* --- Left Column: Blog Content (Transparent/No Box) --- */
        .spb-content-column {
            background: transparent;
            padding: 0;
            border-radius: 0;
            box-shadow: none;
        }

        .spb-entry-header {
            margin-bottom: 35px;
        }

        .spb-category-label {
            color: var(--spb-primary);
            font-weight: 700;
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 1.5px;
            display: block;
            margin-bottom: 12px;
        }

        .spb-main-title {
            font-size: clamp(2rem, 5vw, 2.5rem);
            color: black;
            margin: 0 0 25px 0;
            line-height: 1.1;
            font-weight: 800;
        }

        .spb-meta-info {
            display: flex;
            align-items: center;
            gap: 15px;
            font-size: 0.95rem;
            color: #64748b;
            padding-bottom: 25px;
            border-bottom: 2px solid var(--spb-border);
        }

        .spb-featured-media {
            margin: 40px 0;
            /* border-radius: 20px; */
            overflow: hidden;
            box-shadow: rgba(60, 64, 67, 0.3) 0px 1px 2px 0px, rgba(60, 64, 67, 0.15) 0px 2px 6px 2px;
        }

        .spb-featured-media img {
            width: 100%;
            display: block;
            height: auto;
            max-height: 550px;
            object-fit: cover;
        }

        .spb-article-body {
            font-size: 1.15rem;
            color: var(--spb-text);
        }

        .spb-article-body p {
            margin-bottom: 28px;
        }

        .spb-article-body h2 {
            color: var(--spb-heading);
            font-size: 2rem;
            margin: 50px 0 25px;
            font-weight: 700;
        }

        .spb-highlight-box {
            background: var(--spb-secondary);
            color: white;
            border-left: 6px solid var(--spb-primary);
            padding: 30px;
            margin: 40px 0;
            border-radius: 0 16px 16px 0;
            font-style: italic;
        }

        .spb-feature-list {
            list-style: none;
            padding: 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin: 35px 0;
        }

        .spb-feature-list li {
            padding: 15px 15px 15px 45px;
            position: relative;
            background: white;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.03);
            font-weight: 600;
        }

        .spb-feature-list li::before {
            content: '⚙';
            position: absolute;
            left: 15px;
            color: var(--spb-primary);
            font-size: 1.2rem;
        }

        /* --- Right Column: Sticky Sidebar Form (Kept the Box) --- */
        .spb-sidebar-sticky {
            position: sticky;
            top: 180px;
        }

        .spb-form-card {
            background: var(--spb-white);
            padding: 10px;
            /* border-radius: 20px; */
            box-shadow: rgba(60, 64, 67, 0.3) 0px 1px 2px 0px, rgba(60, 64, 67, 0.15) 0px 2px 6px 2px;
            border: 1px solid var(--spb-border);
        }

        .spb-form-card h4 {
            margin: 0 0 12px 0;
            font-size: 1.6rem;
            color: var(--spb-heading);
            font-weight: 800;
        }

        .spb-form-card p {
            font-size: 0.95rem;
            color: #64748b;
            margin-bottom: 30px;
        }

        .spb-field {
            margin-bottom: 20px;
        }

        .spb-field label {
            display: block;
            font-weight: 700;
            margin-bottom: 10px;
            font-size: 0.9rem;
            color: var(--spb-heading);
        }

        .spb-field input, .spb-field textarea, .spb-field select {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid var(--spb-border);
            border-radius: 10px;
            font-size: 1rem;
            outline: none;
            transition: all 0.3s;
            box-sizing: border-box;
            background: #f8fafc;
        }

        .spb-field input:focus, .spb-field textarea:focus {
            border-color: var(--spb-primary);
            background: white;
            box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.1);
        }

        .spb-btn-submit {
            width: 100%;
            padding: 18px;
            background: var(--spb-primary);
            color: var(--spb-heading);
            border: none;
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 800;
            cursor: pointer;
            transition: all 0.3s;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .spb-btn-submit:hover {
            background: #d97706;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
        }

        /* Responsiveness */
        @media (max-width: 1100px) {
            .spb-main-layout {
                grid-template-columns: 1fr;
                gap: 50px;
            }
            .spb-sidebar-sticky {
                position: relative;
                top: 0;
            }
        }

        @media (max-width: 768px) {
            .spb-feature-list {
                grid-template-columns: 1fr;
            }
            .spb-main-title {
                font-size: 2.2rem;
            }
        }