@font-face {
  font-family: "Chakra Petch";
  src: url("/assets/guhlutions/ChakraPetch-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* Only the four approved sRGB colors. App artwork retains its own identity. */
:root {
  --purple-deep: #3E2265;
  --purple: #7E4DC5;
  --yellow: #F1B702;
  --white: #FFFFFF;
  --background: var(--white);
  --surface: var(--white);
  --text: var(--purple-deep);
  --muted: var(--purple-deep);
  --line: var(--purple);
  --control-line: var(--purple-deep);
  --accent: var(--purple-deep);
  --secondary: var(--purple);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --background: var(--purple-deep);
  --surface: var(--purple-deep);
  --text: var(--white);
  --muted: var(--white);
  --line: var(--purple);
  --control-line: var(--white);
  --accent: var(--yellow);
  --secondary: var(--white);
  color-scheme: dark;
}
/* System appearance also works when JavaScript is unavailable. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --background: var(--purple-deep);
    --surface: var(--purple-deep);
    --text: var(--white);
    --muted: var(--white);
    --line: var(--purple);
    --control-line: var(--white);
    --accent: var(--yellow);
    --secondary: var(--white);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; color: var(--text); background: var(--background); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; font-size: 1rem; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-underline-offset: .22em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a, button, select, summary { -webkit-tap-highlight-color: var(--yellow); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
main:focus { outline: none; }
img { display: block; max-width: 100%; height: auto; }
button, select { font: inherit; }
.shell { width: min(1120px, calc(100% - 64px)); margin-inline: auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: absolute; top: 12px; left: 12px; z-index: 10; padding: 12px 20px; transform: translateY(-200%); background: var(--yellow); color: var(--purple-deep); font-weight: 700; border: 2px solid var(--purple-deep); border-radius: 8px; }
.skip-link:focus { transform: none; outline-color: var(--text); }

.header { border-bottom: 1px solid var(--line); background: var(--surface); }
.header-inner { min-height: 104px; display: flex; align-items: center; justify-content: space-between; gap: 28px; padding-block: 12px; }
.brand { display: inline-flex; flex: none; width: fit-content; padding: 11px; margin-left: -11px; text-decoration: none; border-radius: 8px; }
.brand-mark { display: block; width: 201px; }
.brand-mark img { width: 100%; height: auto; }
.brand-mark--on-dark { display: none; }
:root[data-theme="dark"] .brand-mark--on-light { display: none; }
:root[data-theme="dark"] .brand-mark--on-dark { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .brand-mark--on-light { display: none; }
  :root:not([data-theme]) .brand-mark--on-dark { display: block; }
}
.brand-mark--inverse .brand-mark--on-light { display: none !important; }
.brand-mark--inverse .brand-mark--on-dark { display: block; }
.main-nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.main-nav a { display: inline-flex; min-height: 44px; align-items: center; font-size: .875rem; font-weight: 650; text-decoration: none; border-bottom: 2px solid var(--surface); }
.main-nav a:hover, .main-nav a[aria-current] { border-bottom-color: var(--accent); }
.header-tools { display: flex; align-items: center; gap: 16px; }
.language-switch { display: flex; border: 1px solid var(--control-line); border-radius: 8px; padding: 3px; }
.language { display: grid; place-items: center; min-width: 35px; min-height: 38px; border-radius: 4px; font-size: .7rem; font-weight: 700; text-decoration: none; }
.language[aria-current="page"] { background: var(--text); color: var(--background); }
.language:hover { text-decoration: underline; }
.theme-control { display: flex; position: relative; align-items: center; border: 1px solid var(--control-line); border-radius: 8px; min-height: 46px; }
/* Safari's native popup appearance can ignore horizontal padding. Keep the
   native select interaction, but reserve explicit space for text and chevron. */
.theme-control select { -webkit-appearance: none; appearance: none; width: 96px; min-height: 44px; margin: 0; padding: 8px 26px 8px 12px; border: 0; border-radius: 7px; background: var(--surface); color: var(--text); cursor: pointer; font-size: .8125rem; font-weight: 650; line-height: 1.4; }
.theme-control::after { content: ""; position: absolute; top: 50%; right: 12px; width: 6px; height: 6px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: translateY(-70%) rotate(45deg); pointer-events: none; }
.theme-control select:focus-visible { outline-offset: 4px; }
.theme-control select[data-pointer-focus]:focus { outline: none; }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: "Chakra Petch", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-weight: 600; text-wrap: balance; }
h1 { max-width: 820px; margin-bottom: 24px; font-size: clamp(2.75rem, 6vw, 4.75rem); line-height: 1.06; letter-spacing: -.035em; }
h2 { margin-bottom: 16px; font-size: 1.65rem; line-height: 1.25; letter-spacing: -.02em; }
h3 { line-height: 1.35; letter-spacing: -.01em; }
.label { display: flex; align-items: center; gap: 10px; margin-bottom: 22px; color: var(--secondary); font-size: .6875rem; font-weight: 750; letter-spacing: .14em; line-height: 1.5; text-transform: uppercase; }
.label::before { content: ""; display: block; flex: none; width: 9px; height: 9px; background: var(--purple); }
.intro { max-width: 62ch; margin-bottom: 0; color: var(--muted); font-size: 1.125rem; line-height: 1.8; }
.muted { color: var(--muted); }

.home-intro { display: grid; grid-template-columns: 1.35fr 1fr; align-items: center; gap: 64px; padding-block: 80px; }
.home-copy { min-width: 0; }
.home-copy h1 { max-width: 620px; }
.home-copy .intro { max-width: 47ch; font-size: 1rem; }
.home-art { display: grid; place-items: center; padding: 44px; aspect-ratio: 1; background: var(--yellow); border-radius: 24px 24px 80px 24px; border-bottom: 10px solid var(--purple); }
.home-art img { width: 100%; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 28px; margin-top: 32px; }
.primary-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 50px; padding: 12px 22px; border: 2px solid var(--yellow); border-radius: 8px; background: var(--yellow); color: var(--purple-deep); font-size: .9375rem; font-weight: 750; text-decoration: none; }
.primary-link:hover { background: var(--surface); border-color: var(--control-line); color: var(--text); }
.primary-link:active { transform: translateY(2px); }
.primary-link:focus-visible { outline-color: var(--text); }
.text-link, .arrow-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 44px; color: var(--accent); font-size: .875rem; font-weight: 700; text-decoration: none; }
.text-link:hover, .arrow-link:hover { text-decoration: underline; }
.text-link > span, .arrow-link > span { font-size: 1.25rem; }
.app-list { padding: 48px 0 88px; border-top: 1px solid var(--line); }
.app-list-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 32px; }
.app-list-heading .label { margin-bottom: 12px; }
.app-list-heading h2 { margin: 0; font-size: clamp(1.75rem, 3vw, 2.25rem); }
.app-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.app-row { min-width: 0; display: flex; flex-direction: column; align-items: start; gap: 26px; padding: 28px; border: 1px solid var(--control-line); border-radius: 16px; background: var(--surface); transition: transform 160ms ease; }
.app-row:hover { transform: translateY(-4px); border-color: var(--accent); }
.app-row > div { display: flex; flex: 1; flex-direction: column; min-width: 0; }
.app-row h2 { margin-bottom: 14px; font-size: 1.45rem; text-wrap: initial; }
.app-row p { margin-bottom: 20px; color: var(--muted); font-size: .9375rem; line-height: 1.75; }
.app-row small { display: block; margin-top: auto; color: var(--secondary); font-size: .75rem; font-weight: 600; }
.app-icon { width: 72px; height: 72px; border-radius: 16px; object-fit: cover; }
.app-row .arrow-link { width: 100%; padding-top: 18px; border-top: 1px solid var(--line); }

.page-head, .legal-head { padding: 72px 0 44px; border-bottom: 1px solid var(--line); }
.page-head h1, .legal-head h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); line-height: 1.15; hyphens: auto; overflow-wrap: anywhere; }
.two-column > section, .app-row > div { min-width: 0; }
.two-column p + h2 { margin-top: 36px; }
.two-column { padding: 48px 0 56px; display: grid; grid-template-columns: 1fr 1fr; gap: 72px; border-bottom: 1px solid var(--line); }
.plain-list { margin: 0; padding-left: 22px; }
.plain-list li + li { margin-top: 12px; }
.plain-list li::marker { color: var(--accent); }
.facts { margin: 0; border-top: 1px solid var(--line); font-size: .9375rem; }
.facts div { padding: 12px 0; display: grid; grid-template-columns: 120px 1fr; gap: 18px; border-bottom: 1px solid var(--line); }
.facts dt { color: var(--secondary); }
.facts dd { margin: 0; }
.store-note { margin: 20px 0 0; font-size: .9375rem; }
.notice { margin-top: 32px; padding: 22px 26px; display: grid; grid-template-columns: 140px 1fr; gap: 20px; border: 2px solid var(--yellow); border-radius: 12px; background: var(--yellow); color: var(--purple-deep); }
.notice p { margin: 0; }
.link-panel { margin: 32px 0 80px; display: flex; gap: 20px; }
.link-panel a { flex: 1; padding: 20px 24px; border: 1px solid var(--control-line); border-radius: 10px; background: var(--surface); color: var(--accent); font-weight: 700; text-decoration: none; }
.link-panel a:hover { border-color: var(--accent); text-decoration: underline; }

.support-section { max-width: 760px; padding: 48px 0; border-bottom: 1px solid var(--line); }
.support-section:last-of-type { margin-bottom: 64px; }
.section-title { margin-bottom: 28px; display: flex; align-items: center; gap: 18px; }
.section-title h2 { margin: 0; font-size: 1.75rem; }
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { padding: 20px 40px 20px 0; position: relative; cursor: pointer; list-style: none; font-weight: 650; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; top: 19px; right: 5px; color: var(--accent); font-size: 1.5rem; line-height: 1; font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq details p { max-width: 66ch; padding: 0 28px 20px 0; margin: 0; color: var(--muted); }
.support-section > p { margin-top: 28px; margin-bottom: 0; }
.support-section > p a { overflow-wrap: anywhere; }

/* Shared app identity, reading width, and vertical rhythm. */
.app-name { display: inline-flex; align-items: center; gap: .3em; color: inherit; font-size: inherit; letter-spacing: inherit; text-transform: none; }
.app-name--inline { white-space: nowrap; vertical-align: baseline; }
.app-name-icon { display: inline-block; flex: none; width: 1.15em; height: 1.15em; border-radius: .25em; object-fit: cover; align-self: center; }
.app-name--heading { gap: 16px; }
.app-name--heading .app-name-icon { width: 48px; height: 48px; border-radius: 11px; }
.app-name--hero { gap: 16px; font-size: 1rem; font-weight: 700; }
.app-name--hero .app-name-icon { width: 64px; height: 64px; border-radius: 14px; }
.app-reading { max-width: 760px; }
.app-page-head { padding: clamp(40px, 7vw, 64px) 0 40px; border-bottom: 1px solid var(--line); }
.app-page-head > .app-name { margin-bottom: 28px; }
.app-page-head h1 { margin-bottom: 24px; font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.15; letter-spacing: -.025em; hyphens: auto; overflow-wrap: anywhere; }
.app-page-head h1 .app-name { white-space: normal; }
.app-page-head .intro { max-width: 65ch; }
.app-page-head > a { margin-top: 28px; white-space: normal; }
.app-support { padding-bottom: 72px; }
.app-help { padding-top: 36px; }
.app-help > h2 { margin-bottom: 24px; }
.app-faq summary { line-height: 1.6; overflow-wrap: anywhere; }
.app-faq summary:hover, .app-faq details[open] summary { color: var(--accent); }
.app-answer { padding: 0 28px 24px 0; color: var(--muted); }
.app-faq .app-answer p { max-width: 66ch; margin: 0; padding: 0; }
.app-faq .app-answer p + p, .app-faq .app-answer ul + p { margin-top: 16px; }
.app-answer ul { list-style: disc; margin: 0; padding-left: 22px; }
.app-answer li + li { margin-top: 12px; }
.app-contact { margin-top: 40px; padding: 28px; border: 1px solid var(--control-line); border-radius: 12px; background: var(--surface); }
.app-contact p { max-width: 62ch; margin: 0 0 18px; color: var(--muted); }
.app-email { display: inline-block; max-width: 100%; min-height: 44px; padding-block: 8px; color: var(--accent); font-weight: 700; overflow-wrap: anywhere; }
.app-privacy-link { display: block; width: fit-content; margin-top: 12px; padding-block: 8px; color: var(--muted); font-size: .875rem; }

.privacy-list { padding: 32px 0 40px; }
.privacy-list > a > div { min-width: 0; }
.privacy-list > a { padding: 28px; margin-bottom: 16px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border: 1px solid var(--control-line); border-radius: 12px; text-decoration: none; }
.privacy-list > a:hover { border-color: var(--accent); }
.privacy-list h2 { margin-bottom: 12px; }
.privacy-list p { margin: 0; color: var(--muted); font-size: .9375rem; }
.privacy-list > a > span { color: var(--accent); font-size: 1.5rem; }
.privacy-website { padding: 0 0 64px; }
.privacy-website > a { border: 2px solid var(--accent); }
.legal-date { display: inline-block; margin: 0; padding: 6px 10px; border: 1px solid var(--line); border-radius: 5px; background: var(--surface); color: var(--secondary); font-size: .75rem; font-weight: 600; }
.legal-copy { max-width: 760px; padding: 40px 0 80px; }
.legal-copy h2 { margin-top: 40px; margin-bottom: 14px; font-size: 1.4rem; }
.legal-copy h2:first-child { margin-top: 0; }
.legal-copy p { color: var(--muted); }
.legal-copy strong { color: var(--text); }
.legal-copy code { padding: 2px 5px; border: 1px solid var(--line); border-radius: 4px; font-size: .9em; }
.legal-copy a { color: var(--accent); overflow-wrap: anywhere; }
.summary { padding: 22px 24px; border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 0 10px 10px 0; background: var(--surface); }
.summary strong { color: var(--accent); }
.app-privacy-copy { padding: 32px 0 72px; }
.app-privacy-copy p { margin: 0; color: var(--muted); line-height: 1.8; }
.app-privacy-section { margin-top: 36px; }
.app-privacy-section > h2:first-child, .app-privacy-copy > h2:first-child { margin-top: 0; }
.app-privacy-copy h2 { margin: 36px 0 16px; color: var(--text); font-size: 1.4rem; line-height: 1.4; hyphens: auto; overflow-wrap: anywhere; }
.app-privacy-copy p + p { margin-top: 16px; }
.app-privacy-copy ul { list-style: disc; padding-left: 24px; margin: 16px 0; color: var(--muted); }
.app-privacy-copy li + li { margin-top: 12px; }
.app-privacy-copy a { color: var(--accent); overflow-wrap: anywhere; }
.app-privacy-copy .app-apple-policy { margin-top: 24px; }
.app-privacy-contact > h2:first-child { margin-top: 0; }
.app-privacy-contact { margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--line); }
.missing { min-height: 65vh; padding: 88px 0; }
.missing p:not(.label) { color: var(--muted); }
.missing .primary-link { margin-top: 16px; }

.footer { --text: var(--white); --background: var(--purple-deep); --surface: var(--purple-deep); --accent: var(--yellow); --muted: var(--white); background: var(--purple-deep); color: var(--white); border-top: 5px solid var(--yellow); }
.footer-inner { min-height: 260px; padding: 36px 0 24px; display: grid; grid-template-columns: 1fr auto; gap: 28px; align-content: start; }
.footer-inner > div { display: flex; flex-direction: column; align-items: start; gap: 8px; }
.footer-inner > div > span { color: var(--white); font-size: .8125rem; }
.footer-inner nav { display: flex; align-items: start; gap: 28px; padding-top: 18px; }
.footer-inner nav a { display: inline-flex; align-items: center; min-height: 44px; color: var(--white); font-size: .875rem; text-decoration: none; }
.footer-inner nav a:hover { color: var(--yellow); text-decoration: underline; }
.footer-inner small { grid-column: 1 / -1; padding-top: 20px; border-top: 1px solid var(--purple); color: var(--white); font-size: .75rem; }

.otd-pro { padding: 48px 0; border-bottom: 1px solid var(--line); }
.otd-pro h2 { font-size: clamp(1.75rem, 4vw, 2.25rem); }
.otd-pro-features { display: grid; grid-template-columns: 1fr 1fr; gap: 32px 56px; margin-top: 36px; }
.otd-pro-features h3 { margin: 0 0 12px; font-size: 1.25rem; }
.otd-pro-features p, .otd-sources p { color: var(--muted); margin-bottom: 0; }
.otd-sources { padding-top: 36px; }

@media (max-width: 1050px) {
  .header-inner { gap: 18px; }
  .main-nav { gap: 18px; }
  .header-tools { gap: 12px; }
  .home-intro { gap: 36px; padding-block: 64px; }
  .home-art { padding: 32px; }
  .app-row { padding: 24px; }
}
@media (max-width: 900px) {
  .header-inner { display: grid; grid-template-columns: 1fr auto; gap: 8px 24px; }
  .main-nav { grid-column: 1 / -1; grid-row: 2; margin-left: 0; gap: 28px; }
  .header-tools { grid-column: 2; grid-row: 1; }
  .home-intro { gap: 28px; }
  .home-copy h1 { font-size: 3.25rem; }
  .home-art { padding: 28px; border-radius: 18px 18px 56px 18px; }
  .app-grid { grid-template-columns: 1fr; gap: 18px; }
  .app-row { display: grid; grid-template-columns: 72px 1fr auto; gap: 24px; align-items: center; }
  .app-row h2 { margin-bottom: 8px; }
  .app-row p { margin-bottom: 10px; }
  .app-row .arrow-link { width: auto; border-top: 0; padding-top: 0; }
  .two-column { gap: 36px; }
}
@media (max-width: 680px) {
  .shell { width: calc(100% - 40px); }
  .header-inner { gap: 8px 12px; padding-block: 12px 4px; }
  .brand-mark { width: 189px; }
  .header-tools { display: contents; }
  .main-nav { grid-column: 1; gap: 16px; justify-content: space-between; }
  .main-nav a { font-size: .75rem; }
  .language-switch { grid-column: 2; grid-row: 2; padding: 0; border: 0; justify-self: end; }
  .language { min-width: 30px; min-height: 44px; font-size: .6875rem; }
  .theme-control { grid-column: 2; grid-row: 1; justify-self: end; min-height: 44px; }
  .theme-control select { width: 82px; padding-left: 10px; padding-right: 24px; font-size: .75rem; min-height: 42px; }
  .home-intro { grid-template-columns: 1fr; gap: 36px; padding-block: 44px; }
  .home-copy h1 { max-width: 540px; font-size: clamp(2.6rem, 9.5vw, 3.75rem); }
  .home-copy .intro { max-width: 48ch; }
  .home-art { aspect-ratio: auto; min-height: 250px; padding: 28px; border-bottom-width: 8px; border-radius: 16px 16px 56px 16px; }
  .home-art img { width: 220px; }
  .hero-actions { gap: 24px; margin-top: 28px; }
  .primary-link { font-size: .875rem; padding: 10px 18px; gap: 20px; }
  .app-list { padding: 36px 0 56px; }
  .app-list-heading { align-items: start; flex-direction: column; gap: 12px; margin-bottom: 24px; }
  .app-list-heading h2 { font-size: 1.75rem; }
  .app-row { display: flex; align-items: start; gap: 24px; padding: 24px; }
  .app-row .arrow-link { width: 100%; padding-top: 18px; border-top: 1px solid var(--line); }
  .app-row h2 { font-size: 1.55rem; }
  .app-row p { margin-bottom: 20px; }
  .page-head, .legal-head { padding: 44px 0 32px; }
  .intro { font-size: 1.0625rem; }
  .two-column { padding: 36px 0; grid-template-columns: 1fr; gap: 36px; }
  .notice { grid-template-columns: 1fr; gap: 8px; padding: 20px; }
  .link-panel { flex-direction: column; margin-bottom: 56px; gap: 16px; }
  .facts div { grid-template-columns: 100px 1fr; gap: 16px; }
  .support-section { padding-block: 36px; }
  .support-section:last-of-type { margin-bottom: 48px; }
  .app-name--heading { gap: 12px; }
  .section-title h2 { font-size: 1.5rem; }
  .app-name--heading .app-name-icon { width: 42px; height: 42px; }
  .legal-copy { padding: 32px 0 56px; }
  .app-page-head { padding-bottom: 32px; }
  .app-support { padding-bottom: 48px; }
  .app-answer { padding-right: 8px; }
  .app-contact { margin-top: 32px; padding: 22px 20px; }
  .app-privacy-copy { padding: 28px 0 48px; }
  .summary { padding: 18px; }
  .app-privacy-section { margin-top: 32px; }
  .privacy-list > a { padding: 20px; gap: 16px; }
  .privacy-list h2 { font-size: 1.35rem; }
  .footer-inner { grid-template-columns: 1fr; gap: 20px; }
  .footer-inner nav { flex-wrap: wrap; gap: 24px; padding-top: 0; }
  .footer-inner small { grid-column: 1; }
  .otd-pro-features { grid-template-columns: 1fr; gap: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .app-row { transition: none; }
  .app-row:hover, .primary-link:active { transform: none; }
}
@media (max-width: 360px) {
  .header-inner { width: calc(100% - 24px); column-gap: 8px; }
  .main-nav { gap: 10px; }
}
@media (forced-colors: active) {
  .language[aria-current="page"] { outline: 2px solid; outline-offset: -4px; }
  .main-nav a[aria-current] { text-decoration: underline; }
}