:root {
    color-scheme: light;
    --bg: #ffffff;
    --surface: #f6fbff;
    --surface-strong: #eaf6ff;
    --panel: #ffffff;
    --text: #102445;
    --muted: #5d6f86;
    --line: #d7e5ef;
    --primary: #1678dc;
    --primary-dark: #0e5eae;
    --aqua: #17a6a4;
    --mint: #dff5f2;
    --danger: #b42318;
    --success: #157a58;
    --shadow: 0 18px 48px rgba(31, 83, 128, .13);
    --shell: 1180px;
    --radius: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 16px; line-height: 1.6; letter-spacing: 0; }
body.menu-open { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; letter-spacing: 0; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.14; }
p { color: var(--muted); }
.site-shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 12px 16px; background: var(--text); color: #fff; border-radius: var(--radius); }
.skip-link:focus { top: 16px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .96); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.header-inner { min-height: 72px; display: flex; align-items: center; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; color: var(--text); font-size: 21px; font-weight: 900; }
.brand img { width: 38px; height: 38px; object-fit: contain; transform: scale(1.55); }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 25px; }
.site-nav a { color: #344a65; font-size: 14px; font-weight: 750; }
.site-nav a:hover { color: var(--primary); }
.menu-toggle { display: none; width: 44px; height: 44px; margin-left: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; align-items: center; justify-content: center; flex-direction: column; gap: 5px; cursor: pointer; }
.menu-toggle span:not(.sr-only) { width: 19px; height: 2px; background: var(--text); }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; padding: 12px 20px; border: 1px solid var(--primary); border-radius: var(--radius); background: var(--primary); color: #fff; font-size: 15px; font-weight: 850; text-align: center; transition: background .18s ease, border-color .18s ease, transform .18s ease; }
.button:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-1px); }
.button-secondary { background: #fff; color: var(--primary-dark); border-color: #9cc8ee; }
.button-secondary:hover { color: #fff; }
.button-small { min-height: 42px; padding: 9px 14px; font-size: 13px; }
.button-disabled { background: #d7e1e9; border-color: #d7e1e9; color: #52677c; cursor: not-allowed; }
:focus-visible { outline: 3px solid rgba(22, 120, 220, .35); outline-offset: 3px; }

.hero { position: relative; min-height: 680px; overflow: hidden; background: var(--surface-strong); border-bottom: 1px solid var(--line); }
.hero-backdrop { position: absolute; inset: 0; background-color: #eaf6ff; }
.hero-inner { position: relative; min-height: 680px; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); align-items: center; gap: 70px; padding-block: 64px; }
.hero-copy { position: relative; z-index: 2; max-width: 680px; }
.hero h1 { max-width: 730px; margin-bottom: 24px; font-size: clamp(52px, 6.2vw, 82px); font-weight: 900; letter-spacing: 0; color: #0d2141; }
.hero-copy > p { max-width: 620px; font-size: 19px; line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 14px; }
.availability-note { font-size: 13px !important; font-weight: 700; }
.phone-stage { min-height: 560px; display: grid; place-items: center; position: relative; }
.phone-stage::before { content: ""; position: absolute; width: 520px; height: 380px; border: 1px solid rgba(22, 120, 220, .22); border-radius: 50%; transform: rotate(-8deg); }
.phone { position: relative; width: 300px; padding: 10px; border: 5px solid #10203a; border-radius: 38px; background: #10203a; box-shadow: 0 30px 70px rgba(19, 64, 103, .28); transform: rotate(2deg); }
.phone-speaker { position: absolute; top: 17px; left: 50%; z-index: 2; width: 58px; height: 7px; transform: translateX(-50%); border-radius: 10px; background: #101827; }
.phone-screen { min-height: 520px; overflow: hidden; padding: 15px 14px 58px; border-radius: 28px; background: #f8fbfe; color: #102445; }
.phone-status { display: flex; justify-content: space-between; font-size: 9px; font-weight: 900; }
.phone-heading { display: grid; margin: 22px 0 15px; }
.phone-heading span { font-size: 25px; font-weight: 900; }
.phone-heading small { color: var(--muted); }
.preview-progress, .preview-next, .preview-reading { margin-bottom: 10px; padding: 13px; border: 1px solid #d8e5ee; border-radius: 7px; background: #fff; box-shadow: 0 5px 15px rgba(29, 74, 111, .05); }
.preview-progress { display: grid; grid-template-columns: 1fr auto; gap: 7px; }
.preview-progress div { display: grid; }
.preview-progress div span, .preview-progress small, .preview-next small, .preview-reading small { color: var(--muted); font-size: 9px; }
.preview-progress i, .mini-progress { grid-column: 1 / -1; display: block; height: 5px; overflow: hidden; border-radius: 5px; background: #e4edf4; }
.preview-progress i span, .mini-progress i { display: block; width: 50%; height: 100%; background: var(--primary); }
.preview-next > div, .preview-reading > div { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.preview-next p, .preview-reading p { margin: 3px 0 0; font-size: 10px; }
.preview-badge { padding: 3px 6px; border-radius: 4px; background: #eaf3fc; color: var(--primary-dark); font-size: 8px; font-weight: 900; }
.preview-reading b { font-size: 17px; }
.phone-tabs { position: absolute; left: 15px; right: 15px; bottom: 17px; display: flex; justify-content: space-between; color: #74879b; font-size: 8px; }
.phone-tabs b { color: var(--primary); }

.trust-band { padding: 26px 0 22px; border-bottom: 1px solid var(--line); background: #fff; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-grid > div { min-height: 72px; padding: 5px 24px; border-left: 1px solid var(--line); display: grid; align-content: center; }
.trust-grid > div:first-child { border-left: 0; padding-left: 0; }
.trust-grid strong { font-size: 14px; }
.trust-grid span { color: var(--muted); font-size: 12px; }
.trust-note { margin-top: 18px; margin-bottom: 0; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13px; text-align: center; }

.section { padding-block: 96px; }
.section-heading { max-width: 710px; margin-bottom: 44px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading h2 { margin-bottom: 14px; font-size: clamp(34px, 4vw, 50px); font-weight: 900; }
.section-heading p { margin: 0; font-size: 18px; }
.feature-list { border-top: 1px solid var(--line); }
.feature-row { display: grid; grid-template-columns: 52px minmax(250px, .9fr) minmax(320px, 1.1fr); gap: 32px; align-items: center; min-height: 178px; padding-block: 26px; border-bottom: 1px solid var(--line); }
.feature-number { align-self: start; color: var(--primary); font-size: 13px; font-weight: 900; }
.feature-row h3 { margin-bottom: 8px; font-size: 23px; }
.feature-row p { margin: 0; }
.feature-proof { min-height: 108px; padding: 18px; border: 1px solid #cfe0eb; border-radius: var(--radius); background: var(--surface); display: grid; gap: 4px; align-content: center; }
.feature-proof > span, .feature-proof > small { color: var(--muted); font-size: 13px; }
.feature-proof > b { color: var(--primary-dark); justify-self: start; }
.mini-progress { margin-top: 8px; }
.mini-progress.mint i { background: var(--aqua); }
.mini-progress.progress-62 i { width: 62%; }
.mini-progress.progress-38 i { width: 38%; }
.proof-reminder, .proof-file { grid-template-columns: 1fr auto; }
.proof-reminder span, .proof-file span { grid-column: 1; }
.proof-reminder b, .proof-file b { grid-row: 1 / 3; grid-column: 2; align-self: center; }
.proof-reading b { font-size: 24px; }
.proof-reading b small { font-size: 11px; color: var(--muted); }

.process-band { background: var(--surface-strong); border-block: 1px solid var(--line); }
.process-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; counter-reset: process; }
.process-list li { position: relative; padding-top: 20px; }
.process-list li:not(:last-child)::after { content: ""; position: absolute; top: 22px; left: 48px; right: -12px; border-top: 1px dashed #8bbce5; }
.process-list li > span { position: relative; z-index: 1; width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 900; }
.process-list h3 { margin: 22px 0 8px; font-size: 18px; }
.process-list p { margin: 0; font-size: 14px; }

.manage-section { background: #fff; }
.manage-grid { display: grid; grid-template-columns: repeat(5, 1fr); border-block: 1px solid var(--line); }
.manage-grid article { padding: 26px 22px; border-left: 1px solid var(--line); }
.manage-grid article:first-child { border-left: 0; }
.manage-grid h3 { min-height: 44px; font-size: 17px; }
.manage-grid ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 13px; }
.manage-grid li + li { margin-top: 8px; }

.download-section { padding-top: 30px; }
.download-panel { padding: 48px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; border: 1px solid #a9d1ef; border-radius: var(--radius); background: var(--surface-strong); }
.download-panel h2 { margin-bottom: 14px; font-size: clamp(34px, 4vw, 48px); }
.release-meta { display: flex; flex-wrap: wrap; gap: 24px; margin: 24px 0; }
.release-meta div { min-width: 100px; }
.release-meta dt { color: var(--muted); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.release-meta dd { margin: 3px 0 0; font-weight: 900; }
.checksum { margin-top: 22px; padding: 14px; border: 1px solid #bcd7e9; border-radius: var(--radius); background: rgba(255,255,255,.7); }
.checksum span { display: block; color: var(--muted); font-size: 11px; font-weight: 900; }
.checksum code { display: block; overflow-wrap: anywhere; margin: 7px 0; font-size: 11px; }
.checksum button { min-height: 40px; padding: 7px 12px; border: 1px solid #9abed8; border-radius: 6px; background: #fff; color: var(--primary-dark); font-weight: 800; cursor: pointer; }
.install-note { align-self: stretch; padding: 26px; border-radius: var(--radius); background: #fff; border: 1px solid #cddfea; }
.install-note strong { font-size: 18px; }
.install-note p { font-size: 14px; }
.install-note div { display: flex; flex-wrap: wrap; gap: 14px; }
.install-note a { color: var(--primary-dark); font-size: 13px; font-weight: 850; text-decoration: underline; }

.faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; align-items: start; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; font-weight: 850; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--primary); font-size: 24px; font-weight: 500; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { padding: 0 0 20px; margin: 0; }

.site-footer { padding-top: 60px; background: #0f2341; color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 50px; padding-bottom: 48px; }
.site-footer .brand { color: #fff; }
.footer-brand p { max-width: 300px; color: #b7c5d5; }
.site-footer h2 { margin-bottom: 16px; font-size: 14px; text-transform: uppercase; }
.site-footer a:not(.brand) { display: block; margin: 10px 0; color: #c4d1df; font-size: 14px; }
.site-footer a:hover { color: #fff; }
.footer-bottom { padding: 22px 0 30px; border-top: 1px solid #31445f; display: flex; justify-content: space-between; gap: 30px; color: #9eafc1; font-size: 12px; }
.break-word { overflow-wrap: anywhere; }

.legal-page { background: var(--surface); }
.legal-wrap { width: min(calc(100% - 40px), 800px); margin: 0 auto; padding-block: 72px 100px; }
.legal-card { padding: clamp(24px, 5vw, 54px); border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 12px 36px rgba(31, 83, 128, .07); }
.legal-card h1 { margin-bottom: 10px; font-size: clamp(36px, 5vw, 54px); }
.legal-card h2 { margin: 34px 0 9px; font-size: 20px; }
.legal-card p, .legal-card li { color: var(--muted); }
.updated { color: var(--muted); font-size: 13px; }
.form-card { max-width: 620px; margin-inline: auto; }
.form-card label { display: block; margin: 20px 0 7px; font-weight: 850; }
.form-card input { width: 100%; min-height: 50px; padding: 12px 14px; border: 1px solid #b9ccda; border-radius: var(--radius); background: #fff; color: var(--text); }
.form-card button { width: 100%; min-height: 50px; margin-top: 20px; border: 0; border-radius: var(--radius); background: var(--primary); color: #fff; font-weight: 900; cursor: pointer; }
.form-card .danger-button { background: var(--danger); }
.message, .errors { padding: 14px; border-radius: var(--radius); }
.message { background: #e5f6ee; color: var(--success); font-weight: 800; }
.errors { padding-left: 34px; background: #fff0f0; color: var(--danger); }

@media (max-width: 980px) {
    .header-cta { display: none; }
    .site-nav { gap: 17px; }
    .hero-inner { grid-template-columns: 1fr .72fr; gap: 24px; }
    .hero h1 { font-size: 58px; }
    .phone { width: 270px; }
    .trust-grid { grid-template-columns: repeat(2, 1fr); row-gap: 20px; }
    .trust-grid > div:nth-child(3) { border-left: 0; padding-left: 0; }
    .feature-row { grid-template-columns: 42px 1fr; }
    .feature-proof { grid-column: 2; }
    .manage-grid { grid-template-columns: repeat(2, 1fr); }
    .manage-grid article { border-bottom: 1px solid var(--line); }
    .manage-grid article:nth-child(odd) { border-left: 0; }
    .download-panel { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
    .site-shell { width: min(calc(100% - 28px), var(--shell)); }
    .site-header { position: sticky; }
    .header-inner { min-height: 64px; }
    .menu-toggle { display: flex; }
    .site-nav { position: fixed; inset: 64px 0 auto; display: none; padding: 18px 22px 24px; border-bottom: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
    .site-nav.open { display: grid; }
    .site-nav a { min-height: 44px; display: flex; align-items: center; font-size: 16px; }
    .hero, .hero-inner { min-height: auto; }
    .hero-inner { grid-template-columns: minmax(0, 1fr); padding-block: 54px 40px; }
    .hero-copy, .phone-stage { min-width: 0; width: 100%; }
    .hero h1 { font-size: clamp(42px, 13vw, 62px); }
    .hero-copy > p { font-size: 17px; }
    .hero-actions { display: grid; }
    .phone-stage { min-height: 520px; overflow: hidden; }
    .phone-stage::before { width: 430px; height: 330px; }
    .phone { width: 276px; transform: none; }
    .trust-grid { grid-template-columns: 1fr; }
    .trust-grid > div { padding: 14px 0; border-left: 0; border-top: 1px solid var(--line); }
    .trust-grid > div:first-child { border-top: 0; }
    .section { padding-block: 70px; }
    .section-heading { margin-bottom: 32px; }
    .section-heading h2 { font-size: 36px; }
    .feature-row { grid-template-columns: 34px minmax(0, 1fr); gap: 12px; padding-block: 28px; }
    .feature-row h3 { font-size: 20px; }
    .feature-proof { grid-column: 1 / -1; margin-top: 6px; }
    .process-list { grid-template-columns: 1fr; }
    .process-list li { display: grid; grid-template-columns: 44px 1fr; column-gap: 16px; }
    .process-list li:not(:last-child)::after { top: 64px; bottom: -20px; left: 21px; right: auto; border-top: 0; border-left: 1px dashed #8bbce5; }
    .process-list h3 { margin: 0 0 5px; }
    .process-list p { grid-column: 2; }
    .manage-grid { grid-template-columns: 1fr; }
    .manage-grid article { border-left: 0; }
    .manage-grid h3 { min-height: 0; }
    .download-section { padding-top: 10px; }
    .download-panel { width: min(calc(100% - 28px), var(--shell)); padding: 28px 20px; gap: 28px; }
    .release-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .checksum button { width: 100%; }
    .faq-layout { grid-template-columns: 1fr; gap: 10px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px 24px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-bottom { display: grid; }
}

@media (max-width: 430px) {
    .brand { font-size: 19px; }
    .hero h1 { font-size: 43px; }
    .hero-copy br { display: none; }
    .phone-stage { min-height: 490px; }
    .phone { width: 258px; }
    .phone-screen { min-height: 485px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media print {
    .site-header, .site-footer, .hero-actions, .menu-toggle { display: none !important; }
    body, .legal-page { background: #fff; }
    .legal-wrap { width: 100%; padding: 0; }
    .legal-card { border: 0; box-shadow: none; padding: 0; }
}