:root {
    color-scheme: light;
    --ink: #172033;
    --muted: #677287;
    --paper: #f8fafc;
    --line: #dce3ef;
    --blue: #2f5bea;
    --blue-dark: #1f3c9e;
    --orange: #ff7a00;
    --orange-soft: #fff0df;
    --radius: 22px;
    font-family: ui-rounded, "SF Pro Rounded", "Avenir Next", Avenir, system-ui, sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    background: var(--paper);
    scroll-behavior: smooth;
}

body {
    min-width: 320px;
    margin: 0;
    color: var(--ink);
    background:
        radial-gradient(circle at 80% -8%, rgb(47 91 234 / 11%), transparent 30rem),
        linear-gradient(155deg, #fbfcff 0%, var(--paper) 72%, #fffaf4 100%);
    font-size: 16px;
    line-height: 1.58;
}

a {
    color: inherit;
    text-underline-offset: 0.18em;
}

a:focus-visible,
button:focus-visible {
    outline: 3px solid rgb(47 91 234 / 42%);
    outline-offset: 4px;
}

.skip-link {
    position: fixed;
    z-index: 20;
    top: 0.75rem;
    left: 0.75rem;
    padding: 0.7rem 0.9rem;
    color: white;
    background: var(--blue-dark);
    border-radius: 0.65rem;
    transform: translateY(-180%);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-shell {
    width: min(1160px, calc(100% - 3rem));
    margin: 0 auto;
}

.site-header,
.document-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 5rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--ink);
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -0.045em;
    text-decoration: none;
}

.brand-mark {
    display: grid;
    width: 1.75rem;
    height: 1.75rem;
    place-items: center;
    overflow: hidden;
    color: white;
    font-size: 0.82rem;
    letter-spacing: -0.08em;
    background: linear-gradient(145deg, var(--blue) 0 56%, var(--orange) 56% 100%);
    border-radius: 0.62rem;
    transform: rotate(-7deg);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 650;
}

.site-nav a {
    text-decoration: none;
}

.site-nav a:hover {
    color: var(--blue);
}

.home-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(270px, 0.72fr);
    align-items: center;
    min-height: min(650px, calc(100svh - 5rem));
    gap: clamp(2.5rem, 9vw, 9rem);
    padding: clamp(3.8rem, 9vw, 7rem) 0 clamp(4rem, 8vw, 6rem);
}

.home-copy {
    max-width: 620px;
    opacity: 0;
    transform: translateY(16px);
}

.is-ready .home-copy,
.is-ready .document-intro,
.is-ready .document-section {
    animation: rise-in 560ms cubic-bezier(0.2, 0.75, 0.25, 1) both;
}

.is-ready .document-section:nth-of-type(2) {
    animation-delay: 80ms;
}

.is-ready .document-section:nth-of-type(3) {
    animation-delay: 140ms;
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    margin: 0 0 1.15rem;
    color: var(--blue);
    font-size: 0.72rem;
    font-weight: 850;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.eyebrow::before {
    width: 1.9rem;
    height: 0.15rem;
    content: "";
    background: var(--orange);
    border-radius: 99px;
}

h1,
h2,
p {
    margin-top: 0;
}

.home-copy h1 {
    max-width: 600px;
    margin-bottom: 1.25rem;
    font-size: clamp(3.5rem, 7.2vw, 6.75rem);
    font-weight: 850;
    line-height: 0.9;
    letter-spacing: -0.08em;
}

.home-copy h1 span {
    color: var(--blue);
}

.hero-summary {
    max-width: 500px;
    margin-bottom: 2rem;
    color: var(--muted);
    font-size: clamp(1rem, 1.8vw, 1.18rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
}

.action-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.95rem;
    padding: 0.75rem 1.05rem;
    font-size: 0.92rem;
    font-weight: 780;
    text-decoration: none;
    border-radius: 0.9rem;
    transition: transform 170ms ease, background-color 170ms ease, color 170ms ease;
}

.action-link:hover {
    transform: translateY(-2px);
}

.action-link.primary {
    color: white;
    background: var(--blue);
}

.action-link.primary:hover {
    background: var(--blue-dark);
}

.action-link.secondary {
    color: var(--ink);
    background: #ecf1ff;
}

.action-link.secondary:hover {
    background: #dfe8ff;
}

.hero-note {
    margin: 1.65rem 0 0;
    color: var(--muted);
    font-size: 0.84rem;
}

.signal-visual {
    position: relative;
    min-height: 360px;
    isolation: isolate;
}

.signal-core,
.signal-ring,
.signal-dot {
    position: absolute;
    border-radius: 50%;
}

.signal-core {
    z-index: 2;
    top: 50%;
    left: 50%;
    display: grid;
    width: clamp(150px, 19vw, 215px);
    height: clamp(150px, 19vw, 215px);
    place-items: center;
    color: white;
    font-size: clamp(2.7rem, 4vw, 4.4rem);
    font-weight: 850;
    letter-spacing: -0.11em;
    background: linear-gradient(145deg, #3974ff, #1e44bd);
    box-shadow: 0 26px 60px rgb(35 75 193 / 30%);
    transform: translate(-50%, -50%) rotate(-9deg);
}

.signal-core::after {
    position: absolute;
    right: -12%;
    bottom: 10%;
    width: 53%;
    height: 30%;
    content: "";
    background: var(--orange);
    border-radius: 99px;
    transform: rotate(9deg);
}

.signal-ring {
    top: 50%;
    left: 50%;
    width: min(30vw, 350px);
    height: min(30vw, 350px);
    min-width: 265px;
    min-height: 265px;
    border: 1px solid rgb(47 91 234 / 24%);
    transform: translate(-50%, -50%);
}

.signal-ring::before,
.signal-ring::after {
    position: absolute;
    inset: 11%;
    content: "";
    border: 1px solid rgb(47 91 234 / 16%);
    border-radius: inherit;
}

.signal-ring::after {
    inset: 23%;
    border-color: rgb(255 122 0 / 34%);
}

.signal-dot {
    z-index: 3;
    width: 1.1rem;
    height: 1.1rem;
    background: var(--orange);
    box-shadow: 0 0 0 8px rgb(255 122 0 / 13%);
}

.signal-dot.one {
    top: 16%;
    right: 8%;
    animation: float 4.4s ease-in-out infinite;
}

.signal-dot.two {
    bottom: 16%;
    left: 5%;
    width: 0.72rem;
    height: 0.72rem;
    background: var(--blue);
    box-shadow: 0 0 0 7px rgb(47 91 234 / 12%);
    animation: float 5.1s ease-in-out -1.3s infinite;
}

.home-divider {
    height: 1px;
    background: var(--line);
}

.home-detail {
    display: grid;
    grid-template-columns: 0.55fr 1fr;
    gap: 2rem;
    padding: clamp(3rem, 7vw, 6rem) 0;
}

.home-detail h2 {
    max-width: 290px;
    margin: 0;
    font-size: clamp(1.65rem, 2.7vw, 2.5rem);
    line-height: 1.04;
    letter-spacing: -0.055em;
}

.home-detail-copy {
    max-width: 600px;
    color: var(--muted);
}

.home-detail-copy p:last-child {
    margin-bottom: 0;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.7rem 0 2.25rem;
    color: var(--muted);
    font-size: 0.78rem;
    border-top: 1px solid var(--line);
}

.site-footer a {
    color: var(--blue-dark);
    font-weight: 700;
}

.document-page {
    background:
        linear-gradient(90deg, rgb(47 91 234 / 5%) 1px, transparent 1px) 0 0 / 3.7rem 3.7rem,
        linear-gradient(0deg, rgb(47 91 234 / 5%) 1px, transparent 1px) 0 0 / 3.7rem 3.7rem,
        #fbfcff;
}

.document-nav {
    width: min(950px, calc(100% - 3rem));
    margin: 0 auto;
}

.document-main {
    width: min(760px, calc(100% - 3rem));
    padding: clamp(3rem, 8vw, 6.7rem) 0 5rem;
    margin: 0 auto;
}

.document-intro {
    max-width: 650px;
    margin-bottom: clamp(3.5rem, 8vw, 5.7rem);
}

.document-intro h1 {
    margin-bottom: 1.1rem;
    font-size: clamp(3rem, 7vw, 5.2rem);
    line-height: 0.92;
    letter-spacing: -0.078em;
}

.document-intro p:last-child {
    max-width: 620px;
    margin-bottom: 0;
    color: var(--muted);
    font-size: 1.1rem;
}

.last-updated {
    margin-bottom: 1.15rem;
    color: var(--blue);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.document-section {
    max-width: 690px;
    padding: 1.6rem 0 1.8rem;
    border-top: 1px solid var(--line);
}

.document-section h2 {
    margin-bottom: 0.7rem;
    font-size: clamp(1.35rem, 3vw, 1.75rem);
    line-height: 1.1;
    letter-spacing: -0.045em;
}

.document-section p,
.document-section li {
    color: #4e5a6e;
}

.document-section ul {
    padding-left: 1.2rem;
    margin: 0.85rem 0;
}

.document-section li + li {
    margin-top: 0.45rem;
}

.contact-line {
    display: inline-block;
    margin-top: 0.25rem;
    color: var(--blue-dark);
    font-weight: 800;
}

.contact-line.is-disabled {
    color: var(--muted);
    cursor: not-allowed;
    text-decoration: none;
}

.support-list {
    display: grid;
    gap: 1rem;
    padding: 0;
    margin: 1.35rem 0 0;
    list-style: none;
}

.support-list li {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.85rem;
    align-items: start;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--line);
}

.support-list span {
    display: grid;
    width: 1.9rem;
    height: 1.9rem;
    place-items: center;
    color: var(--blue);
    font-size: 0.8rem;
    font-weight: 850;
    background: #eaf0ff;
    border-radius: 0.62rem;
}

.support-list strong {
    display: block;
    margin-bottom: 0.13rem;
    color: var(--ink);
}

.support-list p {
    margin: 0;
}

.document-footer {
    width: min(950px, calc(100% - 3rem));
    padding: 1.65rem 0 2.25rem;
    margin: 0 auto;
    color: var(--muted);
    font-size: 0.78rem;
    border-top: 1px solid var(--line);
}

@keyframes rise-in {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    50% {
        transform: translateY(-13px);
    }
}

@media (max-width: 700px) {
    .site-shell,
    .document-nav,
    .document-main,
    .document-footer {
        width: min(100% - 2rem, 760px);
    }

    .site-header,
    .document-nav {
        min-height: 4.5rem;
    }

    .home-hero {
        grid-template-columns: 1fr;
        min-height: auto;
        gap: 2rem;
        padding-top: 4.5rem;
    }

    .signal-visual {
        min-height: 275px;
        max-width: 360px;
        margin: 0 auto;
    }

    .home-detail {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }

    .home-copy h1 {
        max-width: 490px;
    }

    .document-main {
        padding-top: 3.5rem;
    }

    .site-footer {
        flex-direction: column;
    }
}

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