/* ÆCRAFT CORE SETUP - Nordic Simplicity & Material Honesty */
        :root {
            --tide-blue: #0077BE;
            --aluminium-light: #f4f4f5; /* Zinc 100 */
            --aluminium-mid: #e4e4e7; /* Zinc 200 */
            --aluminium-dark: #a1a1aa; /* Zinc 400 */
            --charcoal: #18181b; /* Zinc 900 */
            --text-grey: #52525b; /* Zinc 600 */
            --pure-white: #ffffff;
        
            --grey: #c7cad0;
            --dark-grey: #3f434b;
            --white: #f8f8f9;
            --marine-navy: #003366;
            }
            .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 28px;
            font-weight: 700;
            color: var(--charcoal);
            letter-spacing: -0.5px;
        }
        /* TYPOGRAPHY */
        h1, h2, h3 {
            font-family: 'Inter', sans-serif;
            margin: 0;
            color: var(--charcoal);
            font-weight: 700;
            letter-spacing: -1px;
        }

        h1 { font-size: 72px; line-height: 1.1; }
        
        .slide-title {
            font-size: 44px;
            margin-bottom: 20px;
            border-left: 6px solid var(--tide-blue);
            padding-left: 24px;
        }

        p, li { font-size: 20px; line-height: 1.6; color: var(--text-grey); font-weight: 300; }
        strong { color: var(--charcoal); font-weight: 600; }

        .content-area {
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
        }

        .eyebrow {
        display: inline-block;
        font-size: 0.76rem;
        letter-spacing: 0.18em;
        text-transform: uppercase;
        color: var(--tide-blue);
        font-weight: 700;
        margin-bottom: 18px;
        }


        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(--white); color: var(--dark-grey); line-height: 1.6; }

        /* Navigation */
        .nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 78px;
        gap: 24px;
        }

        nav { background-color: var(--aluminium-dark); padding: 1rem 5%; display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 700; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
        .logo img { height: 40px; }
        .nav-links { list-style: none; display: flex; gap: 2rem; }
        .nav-links a { text-decoration: none; color: var(--dark-grey); font-weight: 400; text-transform: uppercase; font-size: 0.9rem; transition: color 0.3s; }
        .nav-links a:hover { color: var(--tide-blue); }

        /* Sections */
        section { padding: 80px 10%; display: flex; flex-direction: column; align-items: center; text-align: center; }
        .hero-section { padding: 20px 10%; }
        .section-white { background-color: var(--white); }
        .section-grey { background-color: var(--grey); }

        .container {
        width: min(1180px, calc(100% - 40px));
        margin: 0 auto;
        }
        /* .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; width: 100%; } */
        /*.section { padding: 100px 0; min-height: 100vh; display: flex; align-items: center; }*/
    
        h1, h2 { color: var(--marine-navy); margin-bottom: 1.5rem; }
        h1 { font-size: 3rem; text-transform: uppercase; letter-spacing: 2px; }
        h3 { color: var(--tide-blue); font-size: 0.8 rem; margin: 8px 0; }
       /* p { max-width: 800px; margin-bottom: 2rem; font-size: 1.1rem; }*/

        .btn { background-color: var(--tide-blue); color: white; padding: 12px 30px; text-decoration: none; border-radius: 4px; font-weight: bold; transition: background 0.3s; display: inline-block; border: none; cursor: pointer; }
        .btn:hover { background-color: var(--marine-navy); }

        /* Footer */
        footer { background-color: var(--marine-navy); color: white; padding: 10px 10%; text-align: center; }
        .footer-socials { display: flex; justify-content: center; gap: 2rem; margin-bottom: 10px; }
        .footer-socials a { color: white; font-size: 1.5rem; transition: color 0.3s; }
        .footer-socials a:hover { color: var(--tide-blue); }

        /* ROI Page Elements */
        .page-container { display: none; padding: 40px 10%; }
        .active { display: block; }
        
        .calculator-card { background: white; padding: 40px; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); max-width: 900px; margin: 0 auto; text-align: left; }
        .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
        .input-group { display: flex; flex-direction: column; gap: 8px; }
        .input-group label { font-weight: bold; color: var(--marine-navy); font-size: 0.9rem; }
        input, select { padding: 10px; border: 1px solid #ddd; border-radius: 4px; font-size: 1rem; }
        .results-box { background: var(--marine-navy); color: white; padding: 30px; border-radius: 8px; margin-top: 30px; text-align: center; }
        .results-box h3 { color: var(--tide-blue); font-size: 2.5rem; margin: 10px 0; }

        /* Hero callout */
        .hero-cta { margin: 40px auto 0 auto; max-width: 440px; width: 100%; text-align: left; }
        .hero-cta-inner { background: var(--aluminium-light); border: 1px solid rgba(0,0,0,0.08); border-radius: 20px; padding: 32px; display: flex; flex-direction: column; gap: 22px; align-items: center; }
        .hero-cta h2 { margin: 0; font-size: 2rem; line-height: 1.1; color: var(--marine-navy); text-align: center; width: 100%; }
        .hero-cta .btn { align-self: center; }
        .hero-logo { margin: 15px auto; }

        /* Layout for About and Energy Sections */
        .section-layout { display: flex; gap: 40px; align-items: center; justify-content: space-between; }
        .section-text { flex: 1; text-align: left; }
        #about-home .section-text { text-align: center; }
        #about-home .section-text h2,
        #about-home .section-text p { margin-left: auto; margin-right: auto; }
        .section-image { flex: 1; }
        .section-image img { width: 100%; height: auto; border-radius: 8px; }
        .section-reversed { flex-direction: row-reverse; }
        .about-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 40px; }
        .about-card { background: white; border-radius: 16px; padding: 24px; box-shadow: 0 16px 30px rgba(0,0,0,0.08); text-align: left; }
        .about-card img { width: 100%; height: auto; border-radius: 12px; margin-bottom: 18px; object-fit: cover; }
        .section-subtitle { text-transform: uppercase; letter-spacing: 0.3em; font-size: 0.75rem; color: var(--tide-blue); margin-bottom: 0.75rem; }
        .about-role { font-size: 0.95rem; color: var(--text-grey); margin-bottom: 1rem; }

        .contact-layout { display: flex; gap: 40px; align-items: flex-start; margin-top: 40px; }
        .contact-image, .contact-form { flex: 1; }
        .contact-image img { width: 100%; height: auto; border-radius: 16px; object-fit: cover; display: block; }
        .contact-form { display: flex; flex-direction: column; gap: 18px; }
        .contact-form input,
        .contact-form textarea { width: 100%; padding: 14px 16px; border: 1px solid #d1d5db; border-radius: 12px; background: #fafafa; font-size: 1rem; color: var(--dark-grey); }
        .contact-form textarea { min-height: 220px; resize: vertical; }
        .contact-form button { width: fit-content; padding: 14px 34px; }
        .contact-details { margin-top: 30px; display: flex; flex-direction: column; gap: 10px; color: var(--text-grey); }

        @media (max-width: 768px) {
            .calc-grid { grid-template-columns: 1fr; }
            h1 { font-size: 2.2rem; }
            .section-layout { flex-direction: column; gap: 20px; }
            .section-reversed { flex-direction: column; }
            .section-text { text-align: center; }
            .about-grid { grid-template-columns: 1fr; }
            .contact-layout { flex-direction: column; }
            .hero-cta { margin: 30px auto 0 auto; }
            .hero-cta-inner { align-items: center; text-align: center; }
            .hero-cta .btn { align-self: center; }
            .nav {flex-direction: column; justify-content: center; padding: 18px 0;}
            .nav-links {justify-content: center;}


        }
         /* Very Small Phones (360px and below) */
        @media (max-width: 360px) {
            h1 { font-size: 1.3rem; }
            h2 { font-size: 1.2rem; }
            p { font-size: 0.85rem; }
            
            header { height: 55px; }
            .logo-text { font-size: 0.9rem; }
            nav { display: none; }
            nav a { font-size: 0.6rem; }
            
            .btn { padding: 9px 15px; font-size: 0.75rem; }
            
            .hero-content h1 { font-size: 1.3rem; }
            .hero-content p { font-size: 0.8rem; margin-bottom: 1rem; }
            
            .page-image { height: 160px; }
            .page-image-med { height: 160px; }
            .leadership-card img { max-height: 180px; }
            .desktop-only { display: none; }

        }

        /* Shop catalogue */
        .shop-page { padding: 0; }
        .shop-page section {
            display: block;
            padding: 32px 0 56px;
            text-align: left;
        }
        .shop-page .container { width: min(1180px, calc(100% - 40px)); }
        .shop-heading { border-bottom: 1px solid var(--aluminium-mid); }
        .shop-heading .container { padding-top: 12px; }
        .shop-page .shop-heading h1 {
            font-size: 2.2rem;
            margin-bottom: 12px;
        }
        .shop-page .shop-heading p {
            max-width: 700px;
            margin-bottom: 20px;
            font-size: 1rem;
        }
        .shop-page .shop-categories {
            position: static;
            display: flex;
            flex-wrap: wrap;
            justify-content: flex-start;
            gap: 8px 24px;
            padding: 0;
            background: none;
            box-shadow: none;
        }
        .shop-categories a {
            color: var(--marine-navy);
            font-size: 0.95rem;
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .shop-page .catalog-section-muted { background: var(--aluminium-light); }
        .shop-page .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .shop-page .section-head h2 {
            max-width: none;
            margin-bottom: 8px;
            font-size: 1.7rem;
        }
        .shop-page .section-head p {
            max-width: 560px;
            font-size: 1rem;
        }
        .shop-page .card-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            align-items: stretch;
            gap: 20px;
        }
        .shop-page .product-card {
            display: flex;
            flex-direction: column;
            overflow: hidden;
            border: 1px solid var(--aluminium-mid);
            border-radius: 8px;
            background: var(--pure-white);
            box-shadow: 0 4px 12px rgba(24, 24, 27, 0.06);
        }
        .shop-page .product-card img {
            display: block;
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-bottom: 1px solid var(--aluminium-mid);
        }
        .shop-page .product-body {
            display: flex;
            flex: 1;
            flex-direction: column;
            align-items: flex-start;
            padding: 18px;
        }
        .shop-page .product-kicker {
            margin-bottom: 8px;
            color: var(--tide-blue);
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
        }
        .shop-page .product-card h3 {
            margin: 0 0 8px;
            color: var(--marine-navy);
            font-size: 1.25rem;
        }
        .shop-page .product-card p {
            font-size: 0.95rem;
            line-height: 1.5;
        }
        .shop-page .price {
            display: block;
            margin-top: 14px;
            color: var(--marine-navy);
            font-size: 1.05rem;
            font-weight: 700;
        }
        .shop-page .product-card ul {
            display: grid;
            gap: 6px;
            margin: 14px 0 20px;
            list-style: none;
        }
        .shop-page .product-card li {
            position: relative;
            padding-left: 14px;
            color: var(--dark-grey);
            font-size: 0.9rem;
            line-height: 1.45;
        }
        .shop-page .product-card li::before {
            position: absolute;
            top: 0.6em;
            left: 0;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--tide-blue);
            content: "";
        }
        .shop-page .product-inquire {
            margin-top: auto;
            padding: 10px 18px;
            font-size: 0.9rem;
        }
        .shop-page [id] { scroll-margin-top: 100px; }
        .energy-tabs { max-width: 960px; }
        .energy-tab-list {
            display: flex;
            gap: 4px;
            margin-bottom: 24px;
            border-bottom: 1px solid var(--aluminium-mid);
        }
        .energy-tab {
            padding: 12px 20px;
            border: 0;
            border-bottom: 3px solid transparent;
            background: transparent;
            color: var(--dark-grey);
            cursor: pointer;
            font: inherit;
            font-weight: 600;
        }
        .energy-tab[aria-selected="true"] {
            border-bottom-color: var(--tide-blue);
            color: var(--marine-navy);
        }
        .energy-tab:focus-visible {
            outline: 2px solid var(--tide-blue);
            outline-offset: -2px;
        }
        .energy-tab-panel { max-width: 800px; }
        .energy-tab-panel[hidden] { display: none; }
        .energy-tab-panel h3 {
            margin: 0 0 10px;
            color: var(--marine-navy);
            font-size: 1.5rem;
        }
        .energy-tab-panel p {
            max-width: 720px;
            font-size: 1rem;
        }
        .energy-detail-list {
            display: grid;
            gap: 8px;
            margin: 18px 0 22px;
            padding-left: 20px;
        }
        .energy-detail-list li {
            color: var(--dark-grey);
            font-size: 0.95rem;
            line-height: 1.5;
        }
        .energy-panel-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) minmax(220px, 340px);
            align-items: center;
            gap: 36px;
            max-width: 960px;
        }
        .energy-visual {
            display: block;
            width: 100%;
            height: auto;
            border-radius: 4px;
        }

        @media (max-width: 900px) {
            .shop-page .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
            .energy-panel-layout { grid-template-columns: minmax(0, 1fr) minmax(180px, 280px); gap: 24px; }
        }
        @media (max-width: 640px) {
            .shop-page section { padding: 28px 0 40px; }
            .shop-page .shop-heading h1 { font-size: 1.8rem; }
            .shop-page .card-grid { grid-template-columns: 1fr; }
            .energy-tab-list { gap: 0; }
            .energy-tab { flex: 1; padding: 12px 8px; }
            .energy-panel-layout { grid-template-columns: 1fr; }
            .energy-visual { max-width: 300px; }
        }