:root {
    color-scheme: dark;
    --page: #0b0d11;
    --page-soft: #101319;
    --surface: rgba(255, 255, 255, 0.045);
    --surface-hover: rgba(255, 255, 255, 0.072);
    --line: rgba(186, 199, 222, 0.16);
    --line-strong: rgba(186, 199, 222, 0.27);
    --text: #f3f5f8;
    --muted: #a1aaba;
    --faint: #737e90;
    --accent: #a9bee9;
    --accent-strong: #dbe6ff;
    --light: #f4f6fa;
    --ink: #11141a;
}

* { box-sizing: border-box; }

html {
    min-height: 100%;
    scroll-behavior: smooth;
    background: var(--page);
}

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at 50% -8%, rgba(118, 148, 207, 0.15), transparent 31rem),
        linear-gradient(180deg, var(--page-soft) 0%, var(--page) 36rem);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a { color: inherit; }

.support-shell {
    width: min(1080px, calc(100% - 48px));
    margin: 0 auto;
}

.site-header,
.site-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-header { min-height: 92px; }

.brand {
    font-size: 13px;
    font-weight: 760;
    letter-spacing: 0.22em;
    text-decoration: none;
    text-transform: uppercase;
}

.site-nav,
.site-footer nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.site-nav a,
.site-footer a {
    color: var(--muted);
    font-size: 14px;
    text-decoration: none;
    transition: color 180ms ease;
}

.site-nav a:hover,
.site-footer a:hover { color: var(--text); }

.draft-notice {
    margin: 16px 0;
    border: 1px solid rgba(225, 180, 104, 0.34);
    border-radius: 14px;
    background: rgba(225, 180, 104, 0.08);
    color: #e8c98e;
    padding: 14px 16px;
    font-size: 14px;
    line-height: 1.5;
}

.hero {
    display: flex;
    min-height: 560px;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    padding: 80px 20px 110px;
    text-align: center;
}

.eyebrow {
    margin: 0 0 16px;
    color: var(--faint);
    font-size: 11px;
    font-weight: 780;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p { margin-top: 0; }

h1 {
    max-width: 820px;
    margin-bottom: 22px;
    font-size: clamp(52px, 9vw, 92px);
    font-weight: 690;
    letter-spacing: -0.065em;
    line-height: 0.98;
}

.hero-copy {
    max-width: 610px;
    margin-bottom: 34px;
    color: var(--muted);
    font-size: clamp(18px, 2.5vw, 22px);
    line-height: 1.55;
}

.primary-button {
    display: inline-flex;
    min-height: 56px;
    align-items: center;
    justify-content: center;
    gap: 32px;
    border: 1px solid rgba(255, 255, 255, 0.88);
    border-radius: 999px;
    background: var(--light);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.22);
    color: var(--ink);
    padding: 0 24px 0 28px;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.primary-button:hover {
    background: #ffffff;
    box-shadow: 0 22px 52px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.button-arrow { font-size: 17px; }

.response-time {
    margin: 16px 0 0;
    color: var(--faint);
    font-size: 13px;
}

.support-topics,
.answers,
.account-panel,
.contact-panel,
.security-note {
    border-top: 1px solid var(--line);
}

.support-topics,
.answers { padding: 88px 0; }

.section-heading { margin-bottom: 34px; }

.section-heading h2,
.account-panel h2,
.contact-panel h2 {
    margin-bottom: 0;
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 660;
    letter-spacing: -0.045em;
    line-height: 1.05;
}

.topic-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.topic-card {
    position: relative;
    display: flex;
    min-height: 260px;
    border: 1px solid var(--line);
    border-radius: 26px;
    background: var(--surface);
    flex-direction: column;
    justify-content: space-between;
    padding: 24px;
    text-decoration: none;
    transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.topic-card:hover {
    border-color: var(--line-strong);
    background: var(--surface-hover);
    transform: translateY(-3px);
}

.topic-number {
    color: var(--faint);
    font-size: 11px;
    font-weight: 760;
    letter-spacing: 0.16em;
}

.topic-content { display: flex; flex-direction: column; gap: 10px; }
.topic-content strong { font-size: 21px; letter-spacing: -0.025em; }
.topic-content span { color: var(--muted); font-size: 15px; line-height: 1.55; }
.topic-arrow { position: absolute; top: 23px; right: 24px; color: var(--muted); }

.answer-list { border-bottom: 1px solid var(--line); }

.answer {
    display: grid;
    grid-template-columns: 0.8fr 1.15fr 1.5fr;
    gap: 40px;
    border-top: 1px solid var(--line);
    padding: 42px 0;
    scroll-margin-top: 30px;
}

.answer-label {
    color: var(--faint);
    font-size: 12px;
    font-weight: 730;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.answer h3 {
    margin-bottom: 0;
    font-size: 24px;
    font-weight: 640;
    letter-spacing: -0.035em;
    line-height: 1.2;
}

.answer > p:not(.answer-label) {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.72;
}

.answer .answer-note {
    grid-column: 3;
    margin-top: -22px;
    color: var(--faint);
    font-size: 13px;
}

.account-panel,
.contact-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    padding: 92px 0;
}

.account-panel p:not(.eyebrow),
.contact-panel p:not(.eyebrow) {
    max-width: 470px;
    margin: 22px 0 0;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.65;
}

.account-links {
    overflow: hidden;
    align-self: center;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: var(--surface);
}

.account-links a {
    display: flex;
    min-height: 60px;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    text-decoration: none;
    transition: background 180ms ease;
}

.account-links a + a { border-top: 1px solid var(--line); }
.account-links a:hover { background: var(--surface-hover); }
.account-links a span:last-child { color: var(--faint); font-size: 23px; }

.contact-panel {
    margin: 10px 0 90px;
    border: 1px solid var(--line);
    border-radius: 32px;
    background:
        radial-gradient(circle at 90% 0, rgba(169, 190, 233, 0.14), transparent 23rem),
        var(--surface);
    padding: clamp(34px, 7vw, 72px);
}

.contact-actions {
    display: flex;
    align-items: flex-start;
    align-self: center;
    flex-direction: column;
    gap: 14px;
}

.primary-button-light { min-width: 180px; }
.contact-actions > span { color: var(--faint); font-size: 13px; }

.security-note {
    padding: 34px 0 42px;
}

.security-note h2 {
    margin-bottom: 10px;
    font-size: 16px;
    font-weight: 650;
}

.security-note p {
    max-width: 800px;
    margin-bottom: 12px;
    color: var(--faint);
    font-size: 13px;
    line-height: 1.65;
}

.security-note a {
    color: var(--muted);
    font-size: 13px;
    text-underline-offset: 0.2em;
}

.site-footer {
    min-height: 100px;
    border-top: 1px solid var(--line);
    color: var(--faint);
    font-size: 13px;
}

a:focus-visible {
    outline: 2px solid var(--accent-strong);
    outline-offset: 4px;
}

@media (max-width: 820px) {
    .topic-grid { grid-template-columns: 1fr; }
    .topic-card { min-height: 190px; }
    .answer { grid-template-columns: 1fr; gap: 13px; }
    .answer .answer-note { grid-column: 1; margin-top: -2px; }
    .account-panel,
    .contact-panel { grid-template-columns: 1fr; gap: 38px; }
}

@media (max-width: 560px) {
    .support-shell { width: min(100% - 28px, 1080px); }
    .site-header { min-height: 76px; }
    .site-nav { gap: 16px; }
    .site-nav a { font-size: 13px; }
    .hero { min-height: 500px; padding: 72px 10px 88px; }
    h1 { font-size: clamp(46px, 15vw, 66px); }
    .hero-copy { font-size: 18px; }
    .support-topics,
    .answers,
    .account-panel { padding: 70px 0; }
    .topic-card { border-radius: 22px; }
    .contact-panel { margin-bottom: 70px; border-radius: 24px; }
    .site-footer { align-items: flex-start; flex-direction: column; justify-content: center; gap: 14px; }
    .site-footer nav { flex-wrap: wrap; gap: 16px; }
}

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