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

        html {
            scroll-behavior: smooth;
        }

        :root {
            --blue: #1a4fd6;
            --blue-bg: #eef4ff;
            --blue-mid: #c7dbff;
            --dark: #0d1b2a;
            --body-text: #3d4a5c;
            --muted: #7a8698;
            --border: #dde3ec;
            --bg: #f4f7fb;
            --white: #ffffff;
            --sidebar-w: 270px;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: var(--bg);
            color: var(--body-text);
            line-height: 1.75;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        /* ── SCROLL PROGRESS ── */
        #scroll-bar {
            position: fixed;
            top: 0;
            left: 0;
            height: 3px;
            width: 0%;
            background: var(--blue);
            z-index: 9999;
        }

        /* ── TOP NAV ── */
        .topnav {
            background: var(--dark);
            padding: 0 3rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .topnav-brand {
            font-family: 'Outfit', sans-serif;
            font-size: 1.3rem;
            font-weight: 900;
            color: var(--white);
            letter-spacing: -0.02em;
        }

        .topnav-brand em {
            color: #5b9dff;
            font-style: normal;
        }

        .topnav-meta {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.04em;
        }

        /* ── HERO ── */
        .hero {
            background: linear-gradient(120deg, #f8fbff 0%, #eef4ff 60%, #e6f0ff 100%);
            padding: 8rem 2rem 5rem;
            position: relative;
            overflow: hidden;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(26, 79, 214, 0.06);
        }

        .hero-label {
            display: inline-block;
            background: rgba(26, 79, 214, 0.08);
            border: 1px solid rgba(26, 79, 214, 0.15);
            color: #1a4fd6;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            padding: 5px 16px;
            border-radius: 100px;
            margin-bottom: 1.5rem;
        }

        .hero h1 {
            font-family: 'Outfit', sans-serif;
            font-size: clamp(2.8rem, 5vw, 4.2rem);
            font-weight: 900;
            color: #0d1b2a;
            letter-spacing: -0.04em;
            line-height: 1.1;
            margin-bottom: 1.25rem;
            max-width: 700px;
        }

        .hero h1 span {
            color: #5b9dff;
        }

        .hero p {
            font-size: 1.1rem;
            color: #5c6b80;
            max-width: 560px;
            line-height: 1.7;
        }


        /* ── PAGE LAYOUT ── */
        .page-layout {
            display: grid;
            grid-template-columns: var(--sidebar-w) 1fr;
            min-height: calc(100vh - 60px);
            margin: auto;
            max-width: 1280px;
        }

        /* ── SIDEBAR ── */
        .sidebar {
            background: var(--white);
            border-right: 1px solid var(--border);
            position: sticky;
            top: 60px;
            height: calc(100vh - 60px);
            overflow-y: auto;
            padding: 2rem 0;
        }

        .sidebar-title {
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--muted);
            padding: 10px 1rem;
            border-bottom: 1px solid var(--border);
            margin-bottom: 0.75rem;
        }

        .sidebar nav ul {
            list-style: none;
        }

        .sidebar nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 1.5rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--body-text);
            text-decoration: none;
            border-left: 3px solid transparent;
            transition: all 0.15s ease;
        }

        .sidebar nav a:hover,
        .sidebar nav a.active {
            background: var(--blue-bg);
            color: var(--blue);
            border-left-color: var(--blue);
        }

        .sidebar nav a .num {
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--muted);
            background: var(--bg);
            border-radius: 4px;
            padding: 1px 6px;
            min-width: 22px;
            text-align: center;
        }

        .sidebar nav a.active .num {
            background: var(--blue-mid);
            color: var(--blue);
        }

        /* ── MAIN CONTENT ── */
        .content-wrap {
            padding: 3rem 1rem 5rem;
            max-width: 1200px;
            width: 100%;
        }

        section {
            margin-bottom: 3.5rem;
            scroll-margin-top: 80px;
        }

        /* section heading */
        .sec-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--blue);
            background: var(--blue-bg);
            padding: 4px 12px;
            border-radius: 100px;
            margin-bottom: 0.75rem;
        }

        section h2 {
            font-family: 'Outfit', sans-serif;
            font-size: 1.85rem;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.02em;
            margin-bottom: 1.25rem;
            line-height: 1.25;
        }

        /* welcome heading is larger */
        #welcome h2 {
            font-size: 2.25rem;
        }

        .summary-box {
            background: var(--blue-bg);
            border-left: 4px solid var(--blue);
            border-radius: 0 10px 10px 0;
            padding: 1rem 1.5rem;
            margin-bottom: 1.75rem;
            font-size: 0.925rem;
            color: #1e3a8a;
        }

        .summary-box strong {
            display: block;
            font-size: 0.68rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--blue);
            margin-bottom: 4px;
            font-weight: 700;
        }

        section p {
            font-size: 1rem;
            color: var(--body-text);
            margin-bottom: 1rem;
        }

        section ul {
            list-style: none;
            margin-bottom: 1rem;
        }

        section ul li {
            padding-left: 1.5rem;
            position: relative;
            margin-bottom: 0.6rem;
            font-size: 1rem;
            color: var(--body-text);
        }

        section ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--blue);
        }

        /* address block */
        .address-block {
            background: var(--bg);
            border: 1px solid var(--border);
            border-left: 4px solid var(--blue);
            border-radius: 0 10px 10px 0;
            padding: 1.25rem 1.5rem;
            margin: 1.25rem 0;
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--body-text);
        }

        .address-block strong {
            display: block;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.07em;
            color: var(--blue);
            margin-bottom: 6px;
        }

        /* divider between sections */
        section+section {
            border-top: 1px solid var(--border);
            padding-top: 3rem;
        }

        /* ── FOOTER ── */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.5);
            text-align: center;
            padding: 2rem;
            font-size: 0.875rem;
        }

        .site-footer strong {
            color: rgba(255, 255, 255, 0.85);
        }

        /* ── RESPONSIVE ── */
        @media (max-width: 1024px) {
            .page-layout {
                grid-template-columns: 1fr;
            }

            .sidebar {
                display: none;
            }

            .content-wrap {
                padding: 2.5rem 2rem 4rem;
                max-width: 100%;
            }
        }

        @media (max-width: 640px) {
            .topnav {
                padding: 0 1.5rem;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .content-wrap {
                padding: 2rem 1.25rem 3rem;
            }

            section h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 576px) {
            .hero {
                padding: 6rem 1.5rem 2.5rem;
            }
        }

        .hero-inner {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
        }