:root {
  color-scheme: light;
  --ink: #182230;
  --muted: #657286;
  --soft: #667487;
  --line: #e3e8ee;
  --surface: #ffffff;
  --page: #f7f8fa;
  --accent: #2267d8;
  --accent-dark: #1856bd;
  --accent-soft: #edf4ff;
  --green: #16815d;
  --danger: #b42318;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* { box-sizing: border-box; }
html { min-width: 320px; scroll-behavior: smooth; }
body { margin: 0; background: var(--page); color: var(--ink); font-size: 15px; line-height: 1.6; }
img, iframe, textarea, select { max-width: 100%; }
button, textarea, select { font: inherit; }
button, a, select { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
button:focus-visible, a:focus-visible, textarea:focus-visible, select:focus-visible, [tabindex="0"]:focus-visible {
  outline: 3px solid #8db8ff;
  outline-offset: 3px;
}
[hidden] { display: none !important; }
.content-width { width: min(100% - 48px, 1060px); margin-inline: auto; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
#image-file:focus-visible + .drop-zone { outline: 3px solid #8db8ff; outline-offset: 3px; }
.skip-link {
  position: absolute; z-index: 10; top: 8px; left: 8px; padding: 9px 14px;
  transform: translateY(-150%); border-radius: 6px; background: var(--ink); color: white;
}
.skip-link:focus { transform: translateY(0); }

.site-header { height: 72px; border-bottom: 1px solid #e9edf1; background: rgba(255,255,255,.88); }
.header-inner { width: min(100% - 48px, 1200px); height: 100%; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 15px; font-weight: 720; letter-spacing: -.035em; white-space: nowrap; }
.brand img { display: block; flex: 0 0 auto; }
.brand-muted { color: #667487; font-weight: 500; }
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a { padding: 8px 12px; border-radius: 6px; color: #596577; text-decoration: none; font-size: 13px; font-weight: 550; }
.main-nav a:hover, .main-nav a.nav-current { color: var(--ink); background: #f1f4f7; }

.hero { padding: 72px 0 42px; text-align: center; }
.eyebrow { display: flex; align-items: center; gap: 8px; margin: 0 0 12px; color: #56657a; font-size: 11px; font-weight: 700; letter-spacing: .105em; line-height: 1.5; text-transform: uppercase; }
.hero .eyebrow { justify-content: center; color: #536882; }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: #3386ed; box-shadow: 0 0 0 3px #e4efff; }
h1, h2, h3, p { margin-top: 0; }
.hero h1 { max-width: 810px; margin: 0 auto 14px; font-size: clamp(30px, 4.3vw, 45px); font-weight: 720; letter-spacing: -.052em; line-height: 1.17; }
.hero-copy { max-width: 680px; margin: auto; color: var(--muted); font-size: 16px; line-height: 1.65; }

.ad-slot {
  position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px; margin-inline: auto; padding: 7px 12px; border: 1px solid #e8ebef; background: #f3f5f7; color: #667487;
}
.ad-wide { width: min(752px, calc(100% - 32px)); min-height: 112px; }
.ad-slot iframe { display: block; width: 728px; max-width: 100%; height: 90px; flex: 0 1 auto; border: 0; }
.ad-slot div { max-width: 100%; }
.ad-inline { margin-top: 48px; margin-bottom: 60px; }
.ad-label { font-size: 13px; font-weight: 600; letter-spacing: .02em; }
.tool-section { padding-top: 42px; }
.tool-card { min-width: 0; max-width: 860px; margin: auto; border: 1px solid #e0e5eb; border-radius: 12px; background: var(--surface); box-shadow: 0 4px 14px rgb(21 36 58 / 3%); }
.mode-switch { display: grid; grid-template-columns: 1fr 1fr; padding: 6px; border-bottom: 1px solid var(--line); background: #fbfcfd; border-radius: 12px 12px 0 0; }
.mode-tab { min-height: 42px; border: 0; border-radius: 7px; background: transparent; color: #687488; font-size: 13px; font-weight: 650; cursor: pointer; }
.mode-tab:hover { color: var(--ink); }
.mode-tab.active { background: white; color: var(--accent); box-shadow: 0 1px 4px rgb(20 40 70 / 12%); }
.tool-panel { min-width: 0; padding: 29px 32px 25px; }
.panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.panel-heading h2 { margin: 0 0 3px; font-size: 18px; font-weight: 690; letter-spacing: -.025em; }
.panel-heading p { margin: 0; color: var(--muted); font-size: 13px; }
.step-mark { color: #bdc7d3; font: 600 12px var(--mono); }
.drop-zone {
  min-height: 166px; padding: 20px; display: flex; flex-direction: column; align-items: center; justify-content: center;
  border: 1px dashed #bcc8d6; border-radius: 8px; background: #fafbfd; text-align: center; cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.drop-zone:hover, .drop-zone:focus-visible, .drop-zone.dragging { border-color: var(--accent); background: #f4f8ff; }
.upload-icon { display: grid; place-items: center; width: 43px; height: 43px; margin-bottom: 10px; border: 1px solid #e0e8f0; border-radius: 9px; background: white; color: var(--accent); }
.drop-title { color: #334155; font-size: 13px; font-weight: 600; }
.text-link { color: var(--accent); }
.drop-hint { margin-top: 5px; color: #667487; font-size: 11px; }
.error-message { margin-top: 12px; padding: 10px 12px; border: 1px solid #f0c9c5; border-radius: 6px; background: #fff7f6; color: var(--danger); font-size: 12px; }
.image-details { display: flex; align-items: center; gap: 14px; margin-top: 13px; padding: 10px; border: 1px solid var(--line); border-radius: 8px; }
.preview-frame { width: 76px; height: 66px; flex: 0 0 auto; display: grid; place-items: center; overflow: hidden; border-radius: 5px; background: #f0f2f5; }
.preview-frame img { display: block; max-width: 100%; max-height: 100%; object-fit: contain; }
.file-summary { min-width: 0; display: grid; gap: 2px; color: var(--muted); font-size: 11px; }
.file-name { overflow: hidden; color: #344054; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.file-actions { display: flex; gap: 5px; margin-top: 5px; }
.field-row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 22px 0 8px; }
.field-label { display: block; margin: 0 0 7px; color: #344054; font-size: 12px; font-weight: 650; }
.field-row .field-label { margin: 0; }
.field-note { color: #667487; font-size: 11px; }
.output-tabs { display: flex; gap: 3px; margin-bottom: 8px; padding: 3px; border: 1px solid #e9edf1; border-radius: 7px; background: #f7f8fa; }
.output-tab { min-height: 31px; flex: 1; padding: 5px 8px; border: 0; border-radius: 5px; background: transparent; color: #687488; font-size: 11px; font-weight: 600; cursor: pointer; }
.output-tab:hover { color: var(--ink); }
.output-tab.selected { background: white; color: var(--accent); box-shadow: 0 1px 3px rgb(21 37 58 / 12%); }
.code-output, .code-input {
  width: 100%; min-width: 0; display: block; resize: vertical; border: 1px solid #e0e5eb; border-radius: 7px; background: #fbfcfd;
  color: #334155; font: 11px/1.65 var(--mono); overflow-wrap: anywhere;
}
.code-output { min-height: 104px; padding: 12px; }
.code-input { min-height: 132px; padding: 13px; }
.code-output::placeholder, .code-input::placeholder { color: #667487; }
.output-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 10px; }
.output-actions, .decode-actions { display: flex; align-items: center; gap: 7px; }
.output-actions { flex: 0 0 auto; }
.output-hint { color: #667487; font-size: 11px; }
.button { min-height: 38px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 8px 13px; border: 1px solid transparent; border-radius: 6px; text-decoration: none; font-size: 12px; font-weight: 650; cursor: pointer; transition: background-color .15s ease, border-color .15s ease; }
.button:disabled { cursor: not-allowed; opacity: .48; }
.button-primary { border-color: var(--accent); background: var(--accent); color: white; }
.button-primary:hover:not(:disabled) { border-color: var(--accent-dark); background: var(--accent-dark); }
.button-secondary { border-color: #dce2e9; background: white; color: #49566a; }
.button-secondary:hover { border-color: #b8c4d1; background: #f8fafc; }
.button-quiet { border-color: transparent; background: transparent; color: #667487; }
.button-quiet:hover { background: #f4f6f8; color: var(--ink); }
.button-small { min-height: 27px; padding: 4px 8px; font-size: 10px; }
.status-message { min-height: 18px; margin: 6px 0 0; color: var(--green); font-size: 11px; }
.decode-options { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 15px; }
.decode-options .field-label { margin-bottom: 0; }
.type-select { min-width: 114px; min-height: 36px; padding: 6px 28px 6px 10px; border: 1px solid #dfe5eb; border-radius: 6px; background: white; color: #344054; font-size: 12px; }
.decoded-result { display: grid; grid-template-columns: minmax(0, 1fr) 180px; gap: 18px; align-items: center; margin-top: 17px; padding: 13px; border: 1px solid var(--line); border-radius: 8px; }
.decoded-result, .decoded-image-wrap, .decoded-info { min-width: 0; }
.decoded-image-wrap { min-height: 170px; display: grid; place-items: center; overflow: hidden; border-radius: 5px; background-color: #f7f8fa; background-image: linear-gradient(45deg,#eceff3 25%,transparent 25%),linear-gradient(-45deg,#eceff3 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#eceff3 75%),linear-gradient(-45deg,transparent 75%,#eceff3 75%); background-size: 16px 16px; background-position: 0 0,0 8px,8px -8px,-8px 0; }
.decoded-image-wrap img { display: block; max-width: 100%; max-height: 280px; object-fit: contain; }
.decoded-info { display: grid; gap: 14px; }
.decoded-info > div { display: grid; gap: 2px; }
.decoded-info strong { overflow-wrap: anywhere; color: #344054; font-size: 12px; }
.detail-label { color: #667487; font-size: 10px; }
.decode-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 18px; }
.privacy-note { display: flex; align-items: center; gap: 7px; margin: 0; color: #667487; font-size: 11px; }
.privacy-note svg { flex: 0 0 auto; color: var(--green); }
.privacy-banner { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 15px 0 0; color: #667487; font-size: 11px; text-align: center; }
.privacy-lock { display: inline-grid; flex: 0 0 auto; place-items: center; width: 19px; height: 19px; border: 1px solid #cad6e0; border-radius: 50%; color: var(--green); }

.info-section { padding-top: 92px; }
.section-intro { max-width: 520px; margin-bottom: 24px; }
.section-intro .eyebrow, .how-to .eyebrow { color: var(--accent); }
.section-intro h2, .how-to h2 { margin: 0 0 7px; font-size: 25px; letter-spacing: -.04em; line-height: 1.25; }
.section-intro > p:last-child { margin: 0; color: var(--muted); font-size: 13px; }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.info-card { min-height: 184px; padding: 19px 19px 17px; border: 1px solid var(--line); border-radius: 8px; background: white; }
.card-index { color: #667487; font: 600 9px var(--mono); letter-spacing: .065em; }
.info-card h3 { margin: 13px 0 7px; font-size: 14px; letter-spacing: -.02em; }
.info-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.how-to { display: grid; grid-template-columns: .85fr 1.15fr; gap: 40px; margin-top: 61px; padding: 27px 0 29px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.how-to h2 { font-size: 21px; }
.how-to ol { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.how-to li { display: flex; align-items: center; gap: 11px; color: #536174; font-size: 12px; }
.how-to li span { width: 22px; height: 22px; display: grid; flex: 0 0 auto; place-items: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-size: 10px; font-weight: 700; }
.ad-bottom { margin-top: 55px; margin-bottom: 58px; }

.site-footer { border-top: 1px solid #e6eaef; background: #fff; }
.footer-inner { display: grid; grid-template-columns: .8fr 1.2fr; column-gap: 50px; padding-top: 34px; }
.footer-brand { font-size: 14px; }
.footer-brand-block > p { max-width: 250px; margin: 10px 0 0 44px; color: #667487; font-size: 11px; }
.footer-links { display: flex; justify-content: space-between; gap: 18px; }
.footer-links > div { display: flex; flex-direction: column; align-items: flex-start; gap: 5px; }
.footer-heading { margin-bottom: 3px; color: #667487; font-size: 10px; font-weight: 650; letter-spacing: .04em; text-transform: uppercase; }
.footer-links a { color: #536174; font-size: 11px; text-decoration: none; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 12px; margin-top: 28px; padding: 14px 0 16px; border-top: 1px solid #edf0f3; color: #667487; font-size: 10px; }

.document-main { min-height: 520px; padding-top: 76px; padding-bottom: 90px; }
.document-heading { max-width: 720px; padding-bottom: 32px; border-bottom: 1px solid var(--line); }
.document-heading .eyebrow { color: var(--accent); }
.document-heading h1 { margin: 0 0 12px; font-size: clamp(32px, 4vw, 42px); letter-spacing: -.05em; line-height: 1.2; }
.document-heading > p:last-child { max-width: 650px; margin: 0; color: var(--muted); font-size: 15px; }
.document-layout { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 54px; max-width: 900px; padding-top: 34px; }
.document-aside { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.aside-label { margin-bottom: 3px; color: #667487; font-size: 9px; font-weight: 700; letter-spacing: .1em; }
.document-aside a { color: #657286; font-size: 11px; text-decoration: none; }
.document-aside a:hover { color: var(--accent); }
.document-copy section { margin-bottom: 30px; scroll-margin-top: 24px; }
.document-copy h2 { margin: 0 0 9px; font-size: 18px; letter-spacing: -.025em; }
.document-copy p { margin: 0 0 11px; color: #59677a; font-size: 13px; line-height: 1.85; }
.document-copy a:not(.inline-cta) { color: var(--accent); text-underline-offset: 3px; }
.inline-cta { display: inline-flex; align-items: center; gap: 10px; margin-top: 1px; color: var(--accent); font-size: 12px; font-weight: 650; text-decoration: none; }
.inline-cta:hover { color: var(--accent-dark); }
.document-copy .source-link { margin-left: 12px; padding: 8px 11px; border: 1px solid var(--line); border-radius: 6px; background: white; }
.contact-main { min-height: 570px; }
.contact-card { max-width: 560px; display: flex; gap: 17px; margin-top: 34px; padding: 23px; border: 1px solid var(--line); border-radius: 9px; background: white; }
.contact-icon { width: 46px; height: 46px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 9px; background: var(--accent-soft); color: var(--accent); }
.contact-card h2 { margin: 0 0 4px; font-size: 15px; }
.contact-card p { margin: 0 0 9px; color: var(--muted); font-size: 12px; }
.email-link { display: inline-flex; align-items: center; gap: 7px; color: var(--accent); font-size: 13px; font-weight: 650; text-decoration: none; }
.email-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.contact-note { margin: 14px 0 0; color: #667487; font-size: 11px; }

@media (max-width: 700px) {
  .content-width { width: min(100% - 36px, 560px); }
  .header-inner { width: min(100% - 32px, 560px); gap: 8px; }
  .site-header { height: 64px; }
  .brand { gap: 7px; font-size: 13px; }
  .brand img { width: 31px; height: 31px; }
  .main-nav { gap: 0; }
  .main-nav a { padding: 7px 8px; font-size: 11px; }
  .home-page .hero { padding: 27px 0 16px; }
  .home-page .hero .eyebrow { margin-bottom: 8px; }
  .home-page .hero h1 { font-size: clamp(28px, 7vw, 36px); line-height: 1.13; }
  .home-page .hero-copy { font-size: 15px; line-height: 1.45; }
  .hero h1 { max-width: 540px; }
  .hero-copy { max-width: 520px; font-size: 15px; }
  .tool-section { padding-top: 12px; }
  .tool-panel { padding: 20px; }
  .mode-tab { min-height: 48px; padding: 7px 8px; font-size: 14px; }
  .panel-heading h2 { font-size: 19px; }
  .panel-heading p { font-size: 14px; }
  .field-label { font-size: 14px; }
  .field-note { font-size: 13px; }
  .code-output, .code-input { font-size: 16px; }
  .button { min-height: 44px; font-size: 14px; }
  .button-small { min-height: 40px; padding: 7px 11px; font-size: 13px; }
  .output-tab { min-height: 40px; padding: 6px 7px; font-size: 13px; }
  .output-hint, .status-message, .error-message, .privacy-note, .privacy-banner { font-size: 13px; }
  .type-select { min-height: 44px; font-size: 16px; }
  .drop-title { font-size: 15px; }
  .drop-hint { font-size: 13px; }
  .file-summary, .file-name { font-size: 14px; }
  .info-card p { font-size: 14px; }
  .how-to li { font-size: 14px; }
  .ad-inline { margin-top: 38px; margin-bottom: 50px; }
  .ad-wide { width: min(752px, calc(100% - 24px)); min-height: 112px; }
  .ad-slot { padding-inline: 8px; }
  .ad-slot iframe { width: 728px; max-width: 100%; }
  .info-section { padding-top: 69px; }
  .info-grid { grid-template-columns: 1fr; gap: 10px; }
  .info-card { min-height: auto; padding: 17px; }
  .info-card h3 { margin-top: 8px; }
  .how-to { grid-template-columns: 1fr; gap: 17px; margin-top: 40px; }
  .footer-inner { grid-template-columns: 1fr; row-gap: 24px; padding-top: 26px; }
  .footer-links { gap: 18px; }
  .document-copy h2 { font-size: 20px; }
  .document-copy p { font-size: 15px; }
  .document-aside a { font-size: 13px; }
  .document-heading > p:last-child { font-size: 16px; }
  .contact-card p, .contact-note { font-size: 14px; }
  .document-main { padding-top: 55px; padding-bottom: 65px; }
  .document-layout { grid-template-columns: 1fr; gap: 25px; }
  .document-aside { flex-flow: row wrap; gap: 8px 16px; }
  .aside-label { flex-basis: 100%; }
}
@media (max-width: 440px) {
  .content-width { width: calc(100% - 28px); }
  .header-inner { width: calc(100% - 24px); }
  .brand { font-size: 12px; }
  .brand img { width: 28px; height: 28px; }
  .main-nav { gap: 0; }
  .main-nav a { padding: 7px 4px; font-size: 11px; }
  .home-page .hero { padding-top: 22px; padding-bottom: 12px; }
  .home-page .hero h1 { font-size: clamp(27px, 8vw, 32px); }
  .home-page .hero-copy { font-size: 14px; }
  .tool-panel { padding: 19px 14px 14px; }
  .panel-heading h2 { font-size: 18px; }
  .panel-heading p { max-width: 285px; font-size: 13px; }
  .drop-zone { min-height: 150px; padding: 14px; }
  .drop-hint { max-width: 230px; }
  .field-row { align-items: flex-start; flex-direction: column; gap: 1px; }
  .output-tabs { gap: 1px; }
  .output-tab { padding-inline: 4px; font-size: 12px; }
  .output-footer { align-items: flex-end; }
  .output-hint { max-width: 145px; line-height: 1.5; }
  .output-footer .button { flex: 0 0 auto; padding-inline: 9px; }
  .decode-options { align-items: flex-start; }
  .decode-options .field-note { max-width: 200px; font-size: 12px; }
  .decoded-result { grid-template-columns: 1fr; }
  .decoded-image-wrap { min-height: 130px; }
  .decoded-info { grid-template-columns: 1fr 1fr; }
  .decoded-info .button { grid-column: 1 / -1; }
  .privacy-banner { align-items: flex-start; font-size: 12px; }
  .footer-links { flex-wrap: wrap; justify-content: flex-start; gap: 18px 28px; }
  .footer-links > div:last-child { flex-basis: 100%; }
  .footer-bottom { flex-direction: column; gap: 3px; }
  .contact-card { padding: 17px; }
  .document-copy .source-link { display: flex; width: fit-content; margin: 12px 0 0; }
  .output-footer { align-items: stretch; flex-direction: column; gap: 8px; }
  .output-hint { max-width: none; }
  .output-actions { width: 100%; }
  .output-actions .button { flex: 1 1 0; padding-inline: 5px; font-size: 12px; }
  .decode-footer { align-items: flex-start; flex-direction: column; }
  .decode-actions { width: 100%; justify-content: space-between; }
  .footer-brand-block > p, .footer-links a, .footer-bottom { font-size: 12px; }
  .footer-heading { font-size: 12px; }
  .output-actions .button { font-size: 12px; }
}
@media (max-width: 360px) {
  .site-header { height: auto; }
  .header-inner { height: auto; flex-wrap: wrap; gap: 4px; padding-block: 7px; }
  .main-nav { width: 100%; justify-content: space-between; }
  .main-nav a { min-height: 40px; display: inline-flex; align-items: center; padding: 6px 8px; font-size: 12px; }
  .home-page .hero { padding-top: 18px; }
  .tool-section { padding-top: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}

@media (min-width: 701px) {
  .brand { font-size: 16px; }
  .main-nav a { font-size: 14px; }
  .hero h1 { font-size: clamp(40px, 4vw, 54px); }
  .hero-copy { font-size: 18px; }
  .eyebrow { font-size: 13px; }
  .ad-label { font-size: 13px; }
  .mode-tab { min-height: 46px; font-size: 15px; }
  .tool-panel { padding: 34px 36px 29px; }
  .panel-heading { margin-bottom: 25px; }
  .panel-heading h2 { font-size: 22px; }
  .panel-heading p { font-size: 15px; }
  .step-mark { font-size: 14px; }
  .drop-zone { min-height: 176px; }
  .drop-title { font-size: 16px; }
  .drop-hint { font-size: 14px; }
  .file-summary { font-size: 14px; }
  .file-name { font-size: 15px; }
  .file-actions { gap: 8px; margin-top: 7px; }
  .button-small { min-height: 32px; padding: 5px 10px; font-size: 13px; }
  .field-row { margin-top: 25px; }
  .field-label { font-size: 15px; }
  .field-note { font-size: 14px; }
  .output-tab { min-height: 36px; font-size: 14px; }
  .code-output, .code-input { font-size: 14px; }
  .code-output { min-height: 124px; padding: 14px; }
  .code-input { min-height: 150px; padding: 15px; }
  .output-hint { font-size: 13px; }
  .button { min-height: 44px; padding: 9px 15px; font-size: 15px; }
  .status-message { min-height: 21px; font-size: 14px; }
  .error-message { padding: 11px 13px; font-size: 14px; }
  .type-select { min-height: 42px; font-size: 15px; }
  .decoded-info strong { font-size: 14px; }
  .detail-label { font-size: 13px; }
  .privacy-note, .privacy-banner { font-size: 14px; }
  .info-section { padding-top: 100px; }
  .section-intro { max-width: 590px; margin-bottom: 28px; }
  .section-intro h2 { font-size: 30px; }
  .section-intro > p:last-child { font-size: 16px; }
  .info-grid { gap: 18px; }
  .info-card { min-height: 208px; padding: 22px; }
  .card-index { font-size: 12px; }
  .info-card h3 { margin-top: 14px; font-size: 18px; }
  .info-card p { font-size: 15px; }
  .how-to { gap: 48px; margin-top: 68px; padding-block: 32px 34px; }
  .how-to h2 { font-size: 25px; }
  .how-to li { font-size: 15px; }
  .how-to li span { width: 26px; height: 26px; font-size: 13px; }
  .ad-bottom { margin-top: 62px; margin-bottom: 66px; }
  .footer-inner { padding-top: 38px; }
  .footer-brand { font-size: 15px; }
  .footer-brand-block > p { font-size: 14px; }
  .footer-links { gap: 24px; }
  .footer-links > div { gap: 7px; }
  .footer-heading { font-size: 13px; }
  .footer-links a { font-size: 14px; }
  .footer-bottom { margin-top: 32px; padding-block: 16px 18px; font-size: 13px; }
  .document-main { padding-top: 84px; }
  .document-heading h1 { font-size: clamp(40px, 4vw, 52px); }
  .document-heading > p:last-child { font-size: 17px; }
  .document-layout { grid-template-columns: 210px minmax(0, 1fr); gap: 60px; }
  .aside-label { font-size: 12px; }
  .document-aside a { font-size: 14px; }
  .document-copy h2 { font-size: 22px; }
  .document-copy p { font-size: 15px; }
  .inline-cta { font-size: 15px; }
  .document-copy .source-link { padding: 9px 12px; }
  .contact-card h2 { font-size: 18px; }
  .contact-card p, .contact-note { font-size: 14px; }
  .email-link { font-size: 16px; }
}