:root {
  color-scheme: dark;
  --background: #0b1e23;
  --surface: #112a30;
  --text: #f3f8f7;
  --muted: #afc3c5;
  --accent: #9befd5;
  --border: #2b444b;
  background: var(--background);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
  scroll-behavior: smooth;
  scroll-padding-top: 32px;
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; height: auto; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1, h2, h3 { text-wrap: balance; }
p { line-height: 1.75; }
.wrap { width: min(1160px, calc(100% - 64px)); margin-inline: auto; }
.icon-sprite { position: absolute; pointer-events: none; }
.icon { width: 22px; height: 22px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.skip-link { position: fixed; z-index: 10; top: 12px; left: 12px; padding: 14px; border-radius: 8px; background: var(--accent); color: var(--background); transform: translateY(-180%); }
.skip-link:focus { transform: none; }

/* Navigation */
.site-header { display: flex; align-items: center; gap: 32px; padding-block: 22px; border-bottom: 1px solid var(--border); }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 700; letter-spacing: -.6px; }
.brand img { border-radius: 12px; }
.brand-studio { display: block; margin-top: 2px; color: var(--muted); font-size: 10px; font-weight: 500; letter-spacing: .7px; }
.site-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; font-size: 13px; }
.site-nav a { display: inline-flex; align-items: center; min-height: 44px; }
.language-switch { display: flex; padding: 3px; border: 1px solid var(--border); border-radius: 999px; }
.language-switch button { min-width: 44px; min-height: 44px; padding: 8px; border: 0; border-radius: 999px; background: transparent; color: var(--muted); font-size: 12px; font-weight: 600; cursor: pointer; }
.language-switch button[aria-pressed="true"] { background: var(--accent); color: var(--background); }

/* App introduction */
.hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 64px; align-items: center; padding-block: 72px 88px; }
.hero > *, .section-heading > *, .privacy-section > *, .faq-section > *, .information-section > * { min-width: 0; }
.eyebrow { margin: 0 0 18px; color: var(--accent); font-size: 11px; font-weight: 700; letter-spacing: 1.6px; text-transform: uppercase; line-height: 1.6; }
.platform-label { display: flex; align-items: center; gap: 10px; }
.status-dot { width: 7px; height: 7px; flex-shrink: 0; border-radius: 50%; background: var(--accent); }
h1 { margin: 0; font-size: clamp(56px, 6.7vw, 92px); font-weight: 650; line-height: 1.05; letter-spacing: -4px; }
h1 > span { display: block; }
.accent-text { color: var(--accent); }
.lead { max-width: 490px; margin: 28px 0 30px; color: var(--muted); font-size: 17px; }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px 24px; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 12px; min-height: 54px; padding: 16px 22px; border-radius: 10px; font-size: 14px; font-weight: 700; text-align: center; line-height: 1.4; transition: background-color .18s ease, transform .18s ease; }
.button.primary { background: var(--accent); color: var(--background); }
.button.primary:hover { background: #b9f8e5; transform: translateY(-2px); }
.text-link { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; font-size: 13px; font-weight: 600; }
.text-link:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 5px; }
.hero-note { margin: 20px 0 0; color: var(--muted); font-size: 11px; }
.hero-preview { display: flex; flex-direction: column; align-items: center; gap: 24px; min-width: 0; margin: 0; padding: 24px 28px; border: 1px solid #335c5b; border-radius: 24px; background: #c9e8df; color: #163c38; }
.preview-heading { display: flex; align-items: center; gap: 8px; align-self: stretch; font-size: 10px; font-weight: 600; letter-spacing: .3px; }
.preview-dot { width: 6px; height: 6px; flex-shrink: 0; border-radius: 50%; background: #147e6b; }
.preview-index { margin-left: auto; font-family: ui-monospace, monospace; }
.phone-frame { width: min(100%, 240px); overflow: hidden; border: 7px solid #173033; border-radius: 25px; background: #f5f9f8; box-shadow: 0 20px 36px #07242024; }
.phone-frame img { width: 100%; aspect-ratio: 9 / 20; }
.hero-phone { width: min(100%, 258px); border-width: 8px; border-radius: 28px; }
.preview-caption { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 11px; font-weight: 600; }
.preview-caption .icon { width: 18px; height: 18px; }

/* Discover, download, organize */
.workflow-section { padding-block: 64px 72px; border-top: 1px solid var(--border); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); align-items: end; gap: 80px; }
h2 { margin: 0; font-size: clamp(30px, 3.5vw, 44px); font-weight: 650; line-height: 1.15; letter-spacing: -1.5px; }
.section-intro { margin: 0; color: var(--muted); font-size: 14px; }
.workflow-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; margin: 42px 0 0; padding: 0; list-style: none; }
.workflow-step { display: flex; flex-direction: column; min-width: 0; }
.step-heading { display: flex; align-items: center; gap: 12px; }
.step-number { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border: 1px solid var(--border); border-radius: 50%; color: var(--accent); font-size: 11px; font-family: ui-monospace, monospace; }
.step-label { color: var(--muted); font-size: 11px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; }
h3 { margin: 20px 0 12px; font-size: 21px; font-weight: 600; line-height: 1.3; letter-spacing: -.5px; }
.workflow-step > p { margin: 0 0 28px; color: var(--muted); font-size: 13px; }
.step-visual { display: flex; justify-content: center; margin-top: auto; padding: 28px 18px; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); }
.workflow-step:nth-child(2) .step-visual { background: #16383a; }
.workflow-step:nth-child(3) .step-visual { background: #1a323e; }
.screenshot-note { max-width: 760px; margin: 24px 0 0; color: var(--muted); font-size: 11px; }

/* Private profile */
.privacy-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 96px; padding-block: 72px; border-top: 1px solid var(--border); }
.privacy-icon { display: inline-flex; align-items: center; justify-content: center; width: 56px; height: 56px; margin-bottom: 24px; border: 1px solid #3c6661; border-radius: 16px; background: #173c3a; color: var(--accent); }
.privacy-icon .icon { width: 28px; height: 28px; }
.privacy-intro { margin: 24px 0 0; color: var(--muted); font-size: 15px; }
.privacy-details { align-self: center; }
.privacy-details > div { padding-block: 22px; border-bottom: 1px solid var(--border); }
.privacy-details h3 { margin: 0 0 10px; font-size: 18px; }
.privacy-details p { color: var(--muted); font-size: 13px; }
.privacy-details > div p { margin: 0; }
.privacy-details .privacy-note { margin-block: 22px 12px; font-size: 12px; }

/* Native, keyboard-accessible questions */
.faq-section { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 96px; padding-block: 64px 72px; border-top: 1px solid var(--border); }
.faq-section .section-intro { margin-top: 22px; }
.faq-list details { border-bottom: 1px solid var(--border); }
.faq-list details:first-child { border-top: 1px solid var(--border); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 72px; padding-block: 22px; font-size: 15px; font-weight: 600; line-height: 1.5; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary .icon { width: 18px; height: 18px; color: var(--accent); }
.faq-list details[open] summary .icon { transform: rotate(45deg); }
.faq-list summary:hover { color: var(--accent); }
.faq-list details p { margin: 0; padding: 0 38px 24px 0; color: var(--muted); font-size: 13px; }

/* Download and support */
.download-section { padding-bottom: 72px; }
.download-banner { display: flex; justify-content: space-between; align-items: center; gap: 44px; padding: 44px 48px; border: 1px solid #406e63; border-radius: 18px; background: #183c37; }
.download-banner > div { max-width: 630px; min-width: 0; }
.download-banner h2 { font-size: clamp(28px, 3vw, 38px); }
.download-banner p:not(.eyebrow) { max-width: 530px; margin: 18px 0 0; color: #bed5cf; font-size: 14px; }
.download-banner .button { flex-shrink: 0; }
.information-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 96px; padding-block: 56px 64px; border-top: 1px solid var(--border); }
.information-section h2 { font-size: 32px; }
.information-section p:not(.eyebrow) { max-width: 420px; margin: 20px 0 0; color: var(--muted); font-size: 14px; }
.information-links { align-self: center; }
.information-links a { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; padding-block: 18px; border-bottom: 1px solid var(--border); font-size: 13px; }
.information-links a:first-child { padding-top: 0; }
.information-links a > span { overflow-wrap: anywhere; }
.link-label { display: block; margin-bottom: 5px; color: var(--muted); font-size: 11px; }
.information-links .icon { width: 18px; height: 18px; }
.information-links a:hover, .site-footer a:hover, .site-nav a:hover { color: var(--accent); }
.site-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px 24px; padding-block: 22px; border-top: 1px solid var(--border); color: var(--muted); font-size: 11px; }
.site-footer p { margin: 0; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.site-footer a { display: inline-flex; align-items: center; min-height: 44px; }

@media (max-width: 1000px) {
  .hero { gap: 40px; padding-block: 56px 64px; }
  h1 { font-size: clamp(56px, 7.5vw, 76px); letter-spacing: -3px; }
  .hero-preview { padding-inline: 20px; }
  .section-heading, .privacy-section, .faq-section, .information-section { gap: 48px; }
  .workflow-grid { gap: 20px; }
  .workflow-step h3 { font-size: 19px; }
  .step-visual { padding: 22px 12px; }
  .download-banner { padding: 36px; gap: 30px; }
}
@media (max-width: 760px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { flex-wrap: wrap; gap: 12px 24px; padding-block: 18px; }
  .site-nav { order: 3; width: 100%; justify-content: space-between; flex-wrap: wrap; margin: 0; gap: 0 18px; }
  .language-switch { margin-left: auto; }
  .hero { grid-template-columns: 1fr; gap: 40px; padding-block: 44px 52px; }
  h1 { font-size: clamp(56px, 12vw, 88px); }
  .lead { max-width: 580px; font-size: 16px; }
  .hero-preview { width: 100%; max-width: 480px; justify-self: center; }
  .hero-phone { width: min(100%, 240px); }
  .section-heading, .privacy-section, .faq-section, .information-section { grid-template-columns: 1fr; gap: 28px; }
  .workflow-grid { grid-template-columns: 1fr; gap: 36px; margin-top: 34px; }
  .workflow-step { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .8fr); grid-template-rows: min-content min-content 1fr; column-gap: 28px; align-content: start; }
  .step-heading, .workflow-step > h3, .workflow-step > p { grid-column: 1; }
  .workflow-step > p { margin-bottom: 0; }
  .step-visual { grid-column: 2; grid-row: 1 / 4; margin-top: 0; }
  .workflow-section, .privacy-section, .faq-section { padding-block: 44px 52px; }
  .privacy-details > div:first-child { padding-top: 0; }
  .download-section { padding-bottom: 48px; }
  .download-banner { flex-direction: column; align-items: flex-start; gap: 24px; padding: 32px; }
  .information-section { padding-block: 44px 48px; }
}
@media (max-width: 480px) {
  .wrap { width: calc(100% - 36px); }
  .site-nav { font-size: 12px; gap: 0 12px; }
  .brand { font-size: 20px; }
  h1 { font-size: clamp(48px, 13.5vw, 64px); letter-spacing: -2.5px; }
  h2 { font-size: 30px; letter-spacing: -1px; }
  .hero-preview { padding: 20px; gap: 20px; }
  .hero-phone { width: min(100%, 220px); }
  .actions { align-items: flex-start; flex-direction: column; gap: 12px; }
  .actions .button { width: 100%; }
  .workflow-step { display: flex; }
  .workflow-step > p { margin-bottom: 22px; }
  .workflow-step h3 { font-size: 22px; }
  .step-visual { padding: 24px; }
  .download-banner { padding: 28px 22px; }
  .download-banner .button { width: 100%; }
  .site-footer { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  :root { scroll-behavior: auto; }
  .button { transition: none; }
  .button.primary:hover { transform: none; }
}
