@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;600;700&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');

        :root {
            --bg: #f6faf9;
            --ink: #112023;
            --muted: #607174;
            --panel: #fff;
            --soft: #eaf4f1;
            --line: #d7e5e1;
            --dark: #09191c;
            --teal: #0b7f78;
            --cyan: #1696b1;
            --amber: #e0832c;
            --violet: #7b4dd6;
            --blue: #2679c7;
            --green: #2d9557;
            --rose: #c83c68;
            --shadow: 0 18px 46px rgba(10, 36, 38, .09)
        }

        * {
            box-sizing: border-box
        }

        html {
            scroll-behavior: smooth
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--ink);
            font-family: 'DM Sans', sans-serif;
            line-height: 1.65
        }

        a {
            color: inherit
        }

        .mono,
        code {
            font-family: 'JetBrains Mono', monospace
        }

        .display {
            font-family: 'Plus Jakarta Sans', sans-serif
        }

        .lpbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 9px 18px;
            background: #0b0b12;
            border-bottom: 2px solid #caa14b;
            color: #f5f2e8
        }

        .lpbar a {
            text-decoration: none
        }

        .lpbrand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 13px;
            letter-spacing: .6px
        }

        .lpdot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #caa14b;
            box-shadow: 0 0 8px #caa14b
        }

        .lpall {
            color: #caa14b;
            border: 1px solid rgba(202, 161, 75, .55);
            padding: 5px 11px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 11px;
            white-space: nowrap
        }

        .layout {
            display: grid;
            grid-template-columns: 260px minmax(0, 1fr)
        }

        .sidebar {
            position: sticky;
            top: 0;
            height: 100vh;
            background: var(--dark);
            color: white;
            padding: 22px 18px;
            overflow: auto
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-bottom: 22px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            margin-bottom: 18px
        }

        .brand-mark {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--teal), var(--cyan));
            display: grid;
            place-items: center;
            font-weight: 800
        }

        .brand strong {
            display: block;
            font-family: 'Plus Jakarta Sans';
            font-size: 15px;
            line-height: 1.15
        }

        .brand span {
            font-size: 11px;
            color: rgba(255, 255, 255, .48)
        }

        .nav {
            display: grid;
            gap: 7px
        }

        .nav a {
            display: flex;
            align-items: center;
            gap: 9px;
            text-decoration: none;
            color: rgba(255, 255, 255, .68);
            font-size: 13px;
            padding: 9px 10px;
            border-radius: 8px;
            border: 1px solid transparent
        }

        .nav a:hover,
        .nav a.active {
            color: #fff;
            background: rgba(255, 255, 255, .07);
            border-color: rgba(255, 255, 255, .1)
        }

        .nav i {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--accent, var(--teal));
            flex: 0 0 auto
        }

        .content {
            min-width: 0
        }

        .mobile-top {
            display: none;
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(9, 25, 28, .96);
            color: white;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            padding: 11px 16px
        }

        .mobile-top button {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .2);
            color: white;
            border-radius: 8px;
            padding: 7px 10px
        }

        .mobile-nav {
            display: none;
            background: #0d2023;
            padding: 8px 16px 14px
        }

        .mobile-nav.open {
            display: grid
        }

        .hero {
            position: relative;
            overflow: hidden;
            min-height: 72vh;
            display: grid;
            place-items: center;
            padding: 76px 24px;
            background: radial-gradient(circle at 75% 15%, rgba(22, 150, 177, .2), transparent 34%), radial-gradient(circle at 20% 10%, rgba(123, 77, 214, .14), transparent 32%), linear-gradient(135deg, #09191c, #10292c 62%, #0b2022);
            color: white
        }

        .hero:before {
            content: "";
            position: absolute;
            inset: -20%;
            background-image: linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
            background-size: 44px 44px;
            transform: rotate(-8deg)
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            width: min(980px, 100%)
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 13px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .14);
            font-size: 12px;
            color: rgba(255, 255, 255, .72);
            margin-bottom: 24px
        }

        .badge:before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--teal);
            box-shadow: 0 0 14px var(--teal)
        }

        h1 {
            font-family: 'Plus Jakarta Sans';
            font-size: clamp(2.5rem, 7vw, 5.6rem);
            line-height: .98;
            letter-spacing: 0;
            margin: 0 0 24px;
            max-width: 960px
        }

        .hero h1 span {
            color: #7ff2e8
        }

        .hero p {
            max-width: 760px;
            color: rgba(255, 255, 255, .68);
            font-size: clamp(1rem, 2vw, 1.18rem);
            margin: 0 0 30px
        }

        .chips {
            display: flex;
            flex-wrap: wrap;
            gap: 10px
        }

        .chip {
            font-size: 12px;
            font-weight: 700;
            padding: 8px 11px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12)
        }

        .section {
            padding: 78px 24px;
            scroll-margin-top: 18px
        }

        .section.alt {
            background: #fff
        }

        .wrap {
            width: min(1040px, 100%);
            margin: auto
        }

        .section-head {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 20px;
            align-items: end;
            margin-bottom: 28px
        }

        .eyebrow {
            font: 700 12px 'JetBrains Mono';
            text-transform: uppercase;
            letter-spacing: .12em;
            color: var(--accent, var(--teal));
            margin: 0 0 8px
        }

        .section h2 {
            font-family: 'Plus Jakarta Sans';
            font-size: clamp(1.9rem, 4vw, 3rem);
            line-height: 1.08;
            margin: 0 0 10px
        }

        .lead {
            color: var(--muted);
            max-width: 760px;
            margin: 0
        }

        .mark {
            width: 62px;
            height: 62px;
            border-radius: 14px;
            display: grid;
            place-items: center;
            background: color-mix(in srgb, var(--accent, var(--teal)) 13%, white);
            border: 1px solid color-mix(in srgb, var(--accent, var(--teal)) 25%, white);
            color: var(--accent, var(--teal));
            font: 800 22px 'Plus Jakarta Sans'
        }

        .grid {
            display: grid;
            gap: 18px
        }

        .g2 {
            grid-template-columns: repeat(2, minmax(0, 1fr))
        }

        .g3 {
            grid-template-columns: repeat(3, minmax(0, 1fr))
        }

        .card {
            background: var(--panel);
            border: 1px solid var(--line);
            border-radius: 10px;
            padding: 20px;
            box-shadow: var(--shadow);
            min-width: 0
        }

        .alt .card {
            box-shadow: none;
            background: #fbfefd
        }

        .card h3,
        .card h4 {
            font-family: 'Plus Jakarta Sans';
            margin: 0 0 10px;
            line-height: 1.2
        }

        .card p {
            margin: 0;
            color: var(--muted);
            font-size: 14px
        }

        .mini {
            padding: 14px;
            background: var(--soft);
            border: 1px solid var(--line);
            border-radius: 9px
        }

        .mini b {
            display: block;
            color: var(--ink);
            margin-bottom: 4px
        }

        .list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 10px
        }

        .list li {
            position: relative;
            padding-left: 18px;
            color: var(--muted);
            font-size: 14px
        }

        .list li:before {
            content: "";
            position: absolute;
            left: 0;
            top: .72em;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent, var(--teal))
        }

        .molecule {
            background: linear-gradient(145deg, #f4fbfa, #fff);
            border: 1px solid var(--line);
            border-radius: 10px;
            padding: 16px;
            min-height: 220px;
            display: grid;
            place-items: center
        }

        .molecule svg {
            width: 100%;
            max-width: 340px;
            height: auto
        }

        .formula {
            font-family: 'JetBrains Mono';
            font-size: 12px;
            color: var(--accent, var(--teal));
            background: color-mix(in srgb, var(--accent, var(--teal)) 10%, white);
            padding: 5px 8px;
            border-radius: 6px;
            display: inline-block;
            margin-top: 10px
        }

        .pathway {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 9px;
            margin-top: 16px
        }

        .step {
            background: var(--soft);
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 12px;
            text-align: center;
            font-size: 12px;
            color: var(--muted)
        }

        .step b {
            display: block;
            color: var(--ink);
            font-size: 13px
        }

        .quiz {
            margin-top: 20px;
            border: 1px solid color-mix(in srgb, var(--accent, var(--teal)) 24%, white);
            background: color-mix(in srgb, var(--accent, var(--teal)) 7%, white);
            border-radius: 10px;
            padding: 18px
        }

        .quiz details {
            background: white;
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 12px;
            margin-top: 10px
        }

        .quiz summary {
            cursor: pointer;
            font-weight: 700
        }

        .quiz p {
            font-size: 13px;
            margin: 8px 0 0;
            color: var(--muted)
        }

        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 13px
        }

        th,
        td {
            padding: 12px;
            border-bottom: 1px solid var(--line);
            text-align: left;
            vertical-align: top
        }

        th {
            color: var(--accent, var(--teal));
            background: var(--soft)
        }

        footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .62);
            padding: 42px 24px
        }

        .footer-inner {
            width: min(1040px, 100%);
            margin: auto;
            display: grid;
            gap: 18px
        }

        .refs {
            display: grid;
            gap: 8px;
            font-size: 13px
        }

        .top-link {
            position: fixed;
            right: 18px;
            bottom: 18px;
            background: var(--teal);
            color: white;
            border: 0;
            border-radius: 999px;
            padding: 11px 14px;
            font-weight: 800;
            box-shadow: 0 10px 24px rgba(11, 127, 120, .28);
            cursor: pointer
        }

        .reveal {
            opacity: 0;
            transform: translateY(18px);
            transition: opacity .55s ease, transform .55s ease
        }

        .reveal.visible {
            opacity: 1;
            transform: none
        }

        @media(max-width:900px) {
            .layout {
                display: block
            }

            .sidebar {
                display: none
            }

            .mobile-top {
                display: flex;
                align-items: center;
                justify-content: space-between
            }

            .section {
                padding: 58px 16px
            }

            .hero {
                padding: 68px 16px
            }

            .section-head {
                grid-template-columns: 1fr
            }

            .g2,
            .g3,
            .pathway {
                grid-template-columns: 1fr
            }

            .mark {
                display: none
            }

            .lpbar {
                padding: 8px 12px
            }

            .lpbar span:last-child {
                display: none
            }
        }

        @media(prefers-reduced-motion:reduce) {
            html {
                scroll-behavior: auto
            }

            .reveal {
                opacity: 1;
                transform: none;
                transition: none
            }
        }