:root {
            --paper: #FFFFFF;
            --wash: #F3F6FA;
            --ink: #11151B;
            --muted: #596270;
            --line: #D8DEE8;
            --blue: #0A4FE0;
            --blue-dark: #073AA9;
            --blue-soft: #EAF1FF;
            --blue-text: #DDE8FF;
            --maxw: 1160px;
            --pad: 1.75rem;
            --ease: 180ms cubic-bezier(.16,1,.3,1);
        }

        * { box-sizing: border-box; }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 76px;
        }
        body {
            min-width: 320px;
            margin: 0;
            overflow-x: hidden;
            background: var(--paper);
            color: var(--ink);
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            font-weight: 400;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }
        ::selection { background: var(--blue); color: #FFFFFF; }
        * { scrollbar-color: #AAB4C3 var(--paper); scrollbar-width: thin; }
        *::-webkit-scrollbar { width: 10px; }
        *::-webkit-scrollbar-track { background: var(--paper); }
        *::-webkit-scrollbar-thumb {
            background: #AAB4C3;
            border: 3px solid var(--paper);
            border-radius: 999px;
        }

        a { color: inherit; }
        button, a { -webkit-tap-highlight-color: transparent; }
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid var(--blue);
            outline-offset: 4px;
        }
        .skip-link {
            position: fixed;
            top: 0.75rem;
            left: 0.75rem;
            z-index: 100;
            padding: 0.75rem 1rem;
            background: var(--ink);
            color: #FFFFFF;
            font-size: 0.85rem;
            font-weight: 700;
            text-decoration: none;
            transform: translateY(-160%);
            transition: transform var(--ease);
        }
        .skip-link:focus { transform: translateY(0); }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 20;
            background: rgba(255,255,255,0.97);
            border-bottom: 1px solid var(--line);
        }
        .nav {
            width: min(100%, var(--maxw));
            min-height: 76px;
            margin: 0 auto;
            padding: 0 1.75rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 0.8rem;
            min-height: 44px;
            min-width: 0;
            flex-shrink: 0;
            color: var(--ink);
            text-decoration: none;
        }
        .brand img {
            width: 42px;
            height: 42px;
            object-fit: contain;
            display: block;
        }
        .brand-copy { display: grid; gap: 0.12rem; }
        .brand-copy strong {
            font-size: 0.95rem;
            font-weight: 800;
            letter-spacing: 0.08em;
            line-height: 1;
            text-transform: uppercase;
        }
        .brand-copy span {
            color: var(--muted);
            font-size: 0.68rem;
            font-weight: 600;
            letter-spacing: 0.12em;
            line-height: 1;
            text-transform: uppercase;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.6rem;
        }
        .nav-links a {
            min-height: 44px;
            display: inline-flex;
            align-items: center;
            color: var(--muted);
            font-size: 0.82rem;
            font-weight: 650;
            text-decoration: none;
            text-underline-offset: 0.3em;
            transition: color var(--ease);
        }
        .nav-links a:hover { color: var(--ink); }
        .nav-links .nav-download {
            min-height: 44px;
            padding: 0.72rem 1rem;
            display: inline-flex;
            align-items: center;
            background: var(--blue);
            color: #FFFFFF;
        }
        .nav-links .nav-download:hover { background: var(--blue-dark); color: #FFFFFF; }

        main { display: block; }
        .shell {
            width: min(100%, var(--maxw));
            margin: 0 auto;
            padding-inline: 1.75rem;
        }

        .hero { border-bottom: 1px solid var(--line); }
        .hero-grid {
            min-height: min(820px, calc(100vh - 76px));
            display: grid;
            grid-template-columns: minmax(0, 1.06fr) minmax(360px, 0.94fr);
            gap: clamp(2.5rem, 6vw, 6rem);
            align-items: stretch;
        }
        .hero-copy {
            padding: clamp(4rem, 8vh, 5.5rem) 0 2rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        h1, h2, h3, p { text-wrap: pretty; }
        h1 {
            margin: 0;
            font-size: clamp(3rem, 4.9vw, 3.7rem);
            font-weight: 650;
            letter-spacing: -0.04em;
            line-height: 1.02;
            text-wrap: nowrap;
        }
        .hero-lead {
            max-width: 62ch;
            margin: 1.4rem 0 0;
            color: var(--muted);
            font-size: clamp(1rem, 1.45vw, 1.1rem);
            line-height: 1.65;
        }
        .lead-line { white-space: nowrap; }
        .hero-actions {
            margin-top: 1.6rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem 1.25rem;
        }
        .button-primary {
            min-height: 50px;
            padding: 0.88rem 1.2rem;
            display: inline-flex;
            align-items: center;
            gap: 0.7rem;
            background: var(--blue);
            color: #FFFFFF;
            font-size: 0.88rem;
            font-weight: 750;
            text-decoration: none;
            transition: background var(--ease), transform var(--ease);
        }
        .button-primary:hover {
            background: var(--blue-dark);
            transform: translateY(-2px);
        }
        .button-primary svg { width: 18px; height: 18px; }
        .text-link {
            min-height: 44px;
            display: inline-flex;
            align-items: center;
            color: var(--ink);
            font-size: 0.88rem;
            font-weight: 700;
            text-decoration-color: var(--blue);
            text-decoration-thickness: 2px;
            text-underline-offset: 0.35em;
        }
        .text-link:hover { color: var(--blue); }

        .hero-mark {
            /* Bleed the column to the right edge of the viewport so the blue field runs off-screen. */
            --bleed: max(var(--pad), calc((100vw - var(--maxw)) / 2 + var(--pad)));
            position: relative;
            min-height: 560px;
            margin-right: calc(-1 * var(--bleed));
            overflow: hidden;
            background: var(--wash);
            border-left: 1px solid var(--line);
            isolation: isolate;
        }
        .hero-mark::before {
            content: '';
            position: absolute;
            inset: 0 0 0 auto;
            z-index: -1;
            width: calc(42% + 0.58 * var(--bleed));
            background: var(--blue);
        }
        .hero-mark img {
            position: absolute;
            top: 50%;
            left: calc((100% - var(--bleed)) / 2);
            width: min(72%, 480px);
            height: auto;
            display: block;
            transform: translate(-50%, -50%);
            animation: mark-settle 800ms cubic-bezier(.16,1,.3,1) both;
        }
        @keyframes mark-settle {
            from { transform: translate(-50%, calc(-50% + 18px)) scale(.985); filter: saturate(.78); }
            to { transform: translate(-50%, -50%) scale(1); filter: saturate(1); }
        }

        .coverage {
            padding: clamp(5rem, 10vw, 8rem) 0;
            background: var(--wash);
        }
        .section-intro {
            display: grid;
            grid-template-columns: minmax(250px, 0.75fr) minmax(0, 1.25fr);
            gap: clamp(2rem, 7vw, 7rem);
            align-items: start;
        }
        h2 {
            max-width: 12ch;
            margin: 0;
            font-size: clamp(2.35rem, 5vw, 4.2rem);
            font-weight: 650;
            letter-spacing: -0.035em;
            line-height: 1.02;
            text-wrap: balance;
        }
        .section-intro p {
            max-width: 68ch;
            margin: 0.4rem 0 0;
            color: var(--muted);
            font-size: 1.02rem;
            line-height: 1.75;
        }
        .section-intro p + p { margin-top: 1.1rem; }
        .section-intro .intro-list {
            max-width: 68ch;
            margin: 0.9rem 0 0;
            padding: 0 0 0 1.3rem;
            color: var(--muted);
            font-size: 1.02rem;
            line-height: 1.75;
        }
        .section-intro .intro-list li { padding: 0.15rem 0; }
        .section-intro .intro-list li::marker { color: var(--blue); }
        .section-intro strong { color: var(--ink); font-weight: 700; }
        .coverage-list {
            margin-top: clamp(3.5rem, 7vw, 6rem);
            border-top: 1px solid var(--ink);
        }
        .coverage-row {
            display: grid;
            grid-template-columns: minmax(170px, 0.48fr) minmax(0, 1.52fr);
            gap: 2rem;
            padding: 2rem 0;
            border-bottom: 1px solid var(--line);
        }
        .coverage-row h3 {
            margin: 0;
            font-size: 1.35rem;
            font-weight: 750;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .coverage-row h3 span {
            display: block;
            margin-top: 0.4rem;
            color: var(--muted);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0;
            line-height: 1.5;
        }
        .coverage-row p {
            max-width: 72ch;
            margin: 0;
            color: var(--muted);
            font-size: 0.93rem;
            line-height: 1.72;
        }
        .coverage-row strong { color: var(--ink); font-weight: 700; }
        .coverage-row .path-lead {
            color: var(--ink);
            font-size: 1rem;
            font-weight: 600;
        }
        .coverage-row ul {
            max-width: 72ch;
            margin: 1rem 0 0;
            padding: 0;
            list-style: none;
        }
        .coverage-row li {
            padding: 0.55rem 0;
            border-top: 1px solid var(--line);
            color: var(--muted);
            font-size: 0.93rem;
            line-height: 1.65;
        }
        .coverage-row li:first-child { border-top: 0; padding-top: 0; }
        .coverage-row > div { max-width: 72ch; }
        .coverage-row > div > p,
        .coverage-row > div > ul { max-width: none; }
        .coverage-note {
            max-width: 72ch;
            margin: 1.5rem 0 0;
            color: var(--muted);
            font-size: 0.93rem;
            line-height: 1.72;
        }
        .coverage-note strong { color: var(--ink); font-weight: 700; }
        .limits {
            margin-top: 2.2rem;
            border-bottom: 1px solid var(--line);
        }
        .limits summary {
            min-height: 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 0.95rem 0;
            cursor: pointer;
            color: var(--ink);
            font-size: 0.9rem;
            font-weight: 750;
            list-style: none;
        }
        .limits summary::-webkit-details-marker { display: none; }
        .limits summary::after {
            content: '';
            width: 10px;
            height: 10px;
            flex: 0 0 auto;
            border-right: 2px solid var(--blue);
            border-bottom: 2px solid var(--blue);
            transform: rotate(45deg) translateY(-3px);
            transition: transform var(--ease);
        }
        .limits[open] summary::after { transform: rotate(225deg) translate(-2px, -1px); }
        .limits ul {
            columns: 2;
            column-gap: 3rem;
            margin: 0;
            padding: 0 0 2rem 1.2rem;
        }
        .limits li {
            break-inside: avoid;
            padding: 0.45rem 0;
            color: var(--muted);
            font-size: 0.88rem;
            line-height: 1.65;
        }
        .limits li::marker { color: var(--blue); }
        /* When the list is open, let it fill the section's bottom padding instead of pushing the page down. */
        .coverage:has(.limits[open]) { padding-bottom: 1.5rem; }

        .download {
            padding: clamp(5rem, 10vw, 8rem) 0;
            background: var(--paper);
        }
        .download-layout {
            display: grid;
            grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
            gap: clamp(3rem, 8vw, 8rem);
            align-items: center;
        }
        .download-copy h2 { max-width: 12ch; }
        .download-copy > p {
            max-width: 58ch;
            margin: 1.5rem 0 0;
            color: var(--muted);
            font-size: 1rem;
            line-height: 1.75;
        }
        .notify {
            max-width: 58ch;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--line);
        }
        .notify label {
            display: block;
            padding-left: 5px;
            font-size: 1.05rem;
            font-weight: 700;
        }
        .notify-row {
            margin-top: 0.85rem;
            display: flex;
            gap: 0.6rem;
        }
        .notify input[type="email"] {
            flex: 1 1 auto;
            min-width: 0;
            min-height: 50px;
            padding: 0 1rem;
            border: 1px solid var(--line);
            border-radius: 0;
            background: var(--paper);
            color: var(--ink);
            font: inherit;
            font-size: 0.95rem;
        }
        .notify input[type="email"]::placeholder { color: var(--muted); opacity: 1; }
        .notify input[type="email"]:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; border-color: var(--blue); }
        .notify input[type="email"][aria-invalid="true"] { border-color: #C8321E; }
        .notify button {
            flex: 0 0 auto;
            min-height: 50px;
            padding: 0 1.2rem;
            border: 0;
            background: var(--blue);
            color: #FFFFFF;
            font: inherit;
            font-size: 0.88rem;
            font-weight: 750;
            cursor: pointer;
            transition: background var(--ease);
        }
        .notify button:hover { background: var(--blue-dark); }
        .notify button:disabled { opacity: 0.6; cursor: wait; }
        .notify-note,
        .notify-status {
            margin: 0.7rem 0 0;
            color: var(--muted);
            font-size: 0.8rem;
            line-height: 1.5;
        }
        .notify-note { padding-left: 5px; font-size: 0.9rem; }
        .notify-status:empty { display: none; }
        .notify-status.is-success { color: var(--ink); font-weight: 650; }
        .notify-status.is-error { color: #C8321E; }
        .notify.is-done label,
        .notify.is-done .notify-row,
        .notify.is-done .notify-note { display: none; }

        .download-panel {
            padding: clamp(2rem, 5vw, 3.4rem);
            background: var(--blue);
            color: #FFFFFF;
        }
        .download-panel h3 {
            margin: 0;
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 650;
            letter-spacing: -0.025em;
            line-height: 1.1;
        }
        .download-panel > p {
            margin: 1rem 0 0;
            color: var(--blue-text);
            font-size: 0.92rem;
            line-height: 1.65;
        }
        .package-meta {
            margin: 1.75rem 0 0;
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            border-top: 1px solid rgba(255,255,255,0.32);
            border-bottom: 1px solid rgba(255,255,255,0.32);
        }
        .package-meta div { padding: 1.2rem 0.8rem; border-left: 1px solid rgba(255,255,255,0.32); }
        .package-meta div:first-child { padding-left: 0; border-left: 0; }
        .package-meta dt {
            color: var(--blue-text);
            font-size: 0.64rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }
        .package-meta dd {
            margin: 0.35rem 0 0;
            font-size: 0.82rem;
            font-weight: 700;
            line-height: 1.35;
        }
        .download-button {
            width: 100%;
            min-height: 52px;
            margin-top: 1.5rem;
            padding: 0.9rem 1rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.7rem;
            border: 1px solid rgba(255,255,255,0.44);
            background: rgba(255,255,255,0.13);
            color: rgba(255,255,255,0.78);
            font: inherit;
            font-size: 0.88rem;
            font-weight: 750;
            cursor: not-allowed;
        }
        .download-button svg { width: 18px; height: 18px; }

        footer {
            border-top: 1px solid var(--line);
            background: var(--paper);
        }
        .footer-inner {
            width: min(100%, var(--maxw));
            min-height: 116px;
            margin: 0 auto;
            padding: 1.8rem 1.75rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
        }
        .bridge-credit {
            display: inline-flex;
            align-items: center;
            gap: 0.85rem;
            color: var(--muted);
            font-size: 0.75rem;
            line-height: 1.5;
            text-decoration: none;
        }
        .bridge-credit img {
            width: 74px;
            height: auto;
            display: block;
            filter: invert(1);
        }
        .bridge-credit:hover { color: var(--ink); }
        .footer-inner > span { color: var(--muted); font-size: 0.72rem; }

        @media (max-width: 900px) {
            .hero-grid { grid-template-columns: 1fr; min-height: auto; gap: 0; }
            .hero-copy { min-height: 660px; padding-top: 5rem; }
            .hero-mark { min-height: 500px; border-top: 1px solid var(--line); }
            .section-intro,
            .download-layout { grid-template-columns: 1fr; }
            .section-intro { gap: 1.7rem; }
            .download-layout { gap: 3rem; }
            .download-copy h2 { max-width: 12ch; }
        }

        @media (max-width: 680px) {
            html { scroll-padding-top: 68px; }
            :root { --pad: 1.2rem; }
            .nav, .shell, .footer-inner { padding-inline: var(--pad); }
            .nav { min-height: 68px; }
            .brand img { width: 36px; height: 36px; }
            .nav-links { gap: 0.9rem; }
            .nav-links .nav-download { min-height: 44px; padding: 0.65rem 0.8rem; }
            .hero-grid { grid-template-rows: auto auto auto auto; }
            .hero-copy { display: contents; min-height: 0; padding: 0; }
            .hero-copy h1 { grid-row: 1; padding-top: 4rem; }
            h1 { font-size: clamp(1.8rem, 8.8vw, 3.6rem); }
            .hero-lead { grid-row: 2; margin-top: 1.25rem; }
            .hero-actions { grid-row: 3; margin-top: 1.5rem; }
            .hero-mark { grid-row: 4; min-height: 280px; margin: 2.5rem 0 3.5rem; }
            .hero-mark img { width: min(88%, 340px); }
            .lead-break { display: none; }
            .lead-line { white-space: normal; }
            .coverage-row { grid-template-columns: 1fr; gap: 1rem; padding: 1.8rem 0; }
            .coverage-row h3 { font-size: 1.25rem; }
            .limits ul { columns: 1; }
            .package-meta { grid-template-columns: 1fr; }
            .package-meta div,
            .package-meta div:first-child { padding: 0.8rem 0; border-left: 0; border-top: 1px solid rgba(255,255,255,0.32); }
            .package-meta div:first-child { border-top: 0; }
            .footer-inner { align-items: flex-start; flex-direction: column; gap: 1rem; }
        }

        @media (max-width: 430px) {
            .nav { gap: 0.75rem; }
            .brand { gap: 0.55rem; }
            .brand img { width: 32px; height: 32px; }
            .brand-copy strong { font-size: 0.78rem; }
            .brand-copy span { font-size: 0.56rem; }
            .nav-links { gap: 0.6rem; }
            .nav-links a { font-size: 0.76rem; }
            .nav-links .nav-download { padding: 0.6rem 0.7rem; }
            .hero-actions { align-items: flex-start; flex-direction: column; }
            .button-primary { width: 100%; justify-content: center; }
            .notify-row { flex-direction: column; }
            .download-panel { padding: 1.6rem; }
        }

        @media (prefers-reduced-motion: reduce) {
            html { scroll-behavior: auto; }
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }