/* Visual guide, using the app's shared light/dark color tokens. */
.guide-shell { width: 100%; max-width: 1024px; background: var(--surface); border: 1px solid var(--border); border-top: 3px solid var(--accent-bg); border-radius: var(--r); box-shadow: var(--shadow-card); }
.guide-page a { color: var(--accent-fg); text-underline-offset: 3px; }
.guide-page a:focus-visible, .guide-page summary:focus-visible { outline: 3px solid var(--accent-fg); outline-offset: 4px; }
.guide-skip { position: fixed; top: 10px; left: 10px; z-index: 10; transform: translateY(-200%); background: var(--surface); padding: 12px 16px; }
.guide-skip:focus { transform: none; }
.guide-symbols { position: absolute; width: 0; height: 0; overflow: hidden; }
.guide-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 40px; border-bottom: 1px solid var(--border); }
.guide-brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex: none; }
.guide-header-links { display: flex; align-items: center; gap: 24px; }
.guide-header-links > a:first-child { font-size: 13px; }
.guide-page .guide-button { display: inline-flex; align-items: center; justify-content: center; gap: 16px; min-height: 46px; padding: 12px 20px; background: var(--accent-bg); border: 1px solid var(--accent-bg); border-radius: var(--r); color: #fff; font-size: 14px; font-weight: 600; text-decoration: none; white-space: nowrap; }
.guide-page .guide-button:hover { background: var(--accent-bg-hover); }
.guide-page .guide-button-small { min-height: 40px; padding: 9px 14px; font-size: 13px; }
.guide-hero { display: grid; grid-template-columns: 0.85fr 1.15fr; align-items: center; gap: 20px; padding: 38px 40px; }
.guide-eyebrow { font-size: 11px; color: var(--accent-fg); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 12px; }
.guide-hero h1 { font-size: clamp(36px, 5vw, 54px); line-height: 1.06; letter-spacing: -0.045em; }
.guide-lead { color: var(--text-2); margin-block: 16px 22px; font-size: 15px; }
.guide-hero-art { min-width: 0; }
.guide-hero-art > svg { width: 100%; display: block; }
.guide-hero-art figcaption { text-align: center; font-size: 12px; font-weight: 600; color: var(--text-2); }
.guide-hero-art figcaption span { color: var(--accent-fg); margin-left: 6px; }
.guide-facts { display: flex; justify-content: space-between; align-items: center; gap: 16px; list-style: none; padding: 18px 40px; border-block: 1px solid var(--border); background: var(--surface-2); color: var(--text-2); font-size: 12px; }
.guide-facts li { display: inline-flex; align-items: center; gap: 5px; }
.guide-facts strong { color: var(--text); }
.guide-icon { width: 24px; height: 24px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.guide-facts .guide-icon { width: 15px; height: 15px; color: var(--accent-fg); }
.guide-section { margin-inline: 40px; padding-block: 30px; border-bottom: 1px solid var(--border); scroll-margin-top: 16px; }
.guide-section-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 10px 20px; flex-wrap: wrap; margin-bottom: 20px; }
.guide-page h2 { font-size: 25px; line-height: 1.3; letter-spacing: -0.025em; }
.guide-section-heading > span { color: var(--text-2); font-size: 12px; }
.guide-page h3 { font-size: 15px; line-height: 1.4; }
.guide-steps { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.guide-steps > li { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r); overflow: hidden; }
.guide-step-art { padding: 12px 16px 0; background: var(--accent-soft); }
.guide-step-art svg { display: block; width: 100%; height: 150px; }
.guide-step-copy { padding: 17px 18px 20px; }
.guide-step-copy h3 { display: flex; align-items: center; gap: 8px; }
.guide-step-number { display: inline-grid; place-items: center; width: 22px; height: 22px; background: var(--accent-bg); color: #fff; font-size: 12px; border-radius: var(--r); }
.guide-step-copy p { color: var(--text-2); font-size: 12px; margin-top: 8px; }
.guide-details { border-top: 1px solid var(--border); }
.guide-details summary { padding: 16px 0; cursor: pointer; color: var(--text-2); font-size: 12px; font-weight: 600; line-height: 1.5; }
.guide-details summary::marker { color: var(--accent-fg); }
.guide-details summary:hover, .guide-details[open] summary { color: var(--accent-fg); }
.guide-details > p, .guide-detail-list { color: var(--text-2); font-size: 13px; line-height: 1.65; padding-bottom: 16px; max-width: 760px; }
.guide-detail-list { padding-left: 20px; }
.guide-detail-list li + li { margin-top: 8px; }
.guide-connect-details { margin-top: 20px; }
.guide-connect-options { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; padding-block: 4px 12px; }
.guide-connect-options .guide-icon { color: var(--accent-fg); margin-bottom: 10px; }
.guide-connect-options p { margin-top: 8px; color: var(--text-2); font-size: 13px; }
.guide-code-chip { display: inline-block; font-family: monospace; font-weight: 700; color: var(--accent-fg); background: var(--accent-soft); padding: 5px 9px; margin-bottom: 7px; }
.guide-small-note { color: var(--text-2); font-size: 11px; }
.guide-flow { background: var(--surface-2); border: 1px solid var(--border); padding: 16px 24px; }
.guide-flow-route { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: center; gap: 14px; text-align: center; }
.guide-flow-route > div { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.guide-flow-route svg { display: block; width: 140px; max-width: 100%; height: 122px; }
.guide-flow-route strong { font-size: 13px; }
.guide-flow-route span { font-size: 11px; color: var(--text-2); }
.guide-flow figcaption { text-align: center; font-size: 11px; color: var(--text-2); border-top: 1px solid var(--border); padding-top: 14px; margin-top: 18px; }
.guide-privacy-reminders { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-block: 18px; }
.guide-privacy-reminders p { display: flex; align-items: center; gap: 8px; color: var(--text-2); font-size: 12px; }
.guide-privacy-reminders .guide-icon { width: 18px; height: 18px; color: var(--accent-fg); }
.guide-verification { background: var(--accent-soft); border: 1px solid var(--accent-soft-border); padding: 24px; }
.guide-verification-cards { display: grid; grid-template-columns: minmax(0, 1fr) 40px minmax(0, 1fr); align-items: center; gap: 20px; max-width: 630px; margin-inline: auto; }
.guide-verification-card { display: flex; flex-direction: column; align-items: center; padding: 18px; gap: 8px; background: var(--surface); border: 1px solid var(--accent-soft-border); border-top: 3px solid var(--accent-fg); border-radius: var(--r); }
.guide-verification-card .guide-icon { color: var(--accent-fg); }
.guide-verification-card > span { font-size: 11px; color: var(--text-2); }
.guide-verification-card samp { font-size: 20px; font-weight: 700; color: var(--accent-fg); line-height: 1.5; white-space: nowrap; }
.guide-match-symbol { text-align: center; font-size: 34px; color: var(--ok); font-weight: 600; }
.guide-verification figcaption { margin-top: 16px; font-size: 11px; text-align: center; color: var(--text-2); }
.guide-code-decisions { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-block: 18px; }
.guide-code-decisions p { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-2); }
.guide-code-decisions p:first-child .guide-icon { color: var(--ok); }
.guide-code-decisions p:last-child .guide-icon { color: var(--danger); }
.guide-code-decisions .guide-icon { width: 18px; height: 18px; }
.guide-controls { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-bottom: 20px; }
.guide-controls article { padding: 20px; border: 1px solid var(--border); background: var(--surface-2); }
.guide-control-icon { width: 36px; height: 36px; color: var(--accent-fg); fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 10px; }
.guide-controls p { color: var(--text-2); font-size: 12px; margin-top: 4px; }
.guide-finish { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 26px 40px; background: var(--surface-2); }
.guide-footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding: 18px 40px; border-top: 1px solid var(--border); color: var(--text-2); font-size: 11px; }
/* Shared SVG presentation also adapts to dark mode. */
.art-device { fill: var(--surface); stroke: var(--accent-fg); stroke-width: 2; stroke-linejoin: round; }
.art-screen { fill: var(--accent-soft); }
.art-paper { fill: var(--surface); }
.art-stroke { fill: none; stroke: var(--accent-fg); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.art-blue { fill: var(--accent-bg); }
.art-success { fill: var(--ok); }
.art-halo { fill: var(--accent-soft); }
.art-trail { fill: none; stroke: var(--accent-fg); stroke-width: 2; stroke-dasharray: 5 5; opacity: 0.55; }
.art-white-icon { fill: none; stroke: #fff; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.art-white-stroke { fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; }
.art-qr { fill: none; stroke: var(--accent-fg); stroke-width: 2; }
.art-qr-dots { fill: none; stroke: var(--accent-fg); stroke-width: 2.8; }
.art-scan { fill: none; stroke: var(--accent-fg); stroke-width: 2; stroke-linecap: round; }
.art-scan-line { stroke: var(--accent-fg); stroke-width: 2; }
.art-lock-halo { fill: var(--accent-soft); stroke: var(--accent-soft-border); stroke-width: 1.5; }
.art-lock-icon { fill: none; stroke: var(--accent-fg); stroke-width: 1.7; stroke-linecap: round; }
/* A brief hint of motion; illustrations settle after one cycle. */
@media (prefers-reduced-motion: no-preference) {
  .art-packet { animation: guide-file-hop 2.8s ease-in-out 1; }
  .art-scan-line { animation: guide-scan 2.8s ease-in-out 1; }
}
@keyframes guide-file-hop { 0%, 100% { transform: translateX(0); } 50% { transform: translateX(30px); } }
@keyframes guide-scan { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(12px); } }
@media (max-width: 680px) {
  .guide-header { padding: 18px 20px; gap: 12px; }
  .guide-brand { gap: 8px; }
  .guide-header .brand-name { font-size: 20px; }
  .guide-header .brand-mark { width: 28px; height: 28px; }
  .guide-header-links { gap: 8px; }
  .guide-header-links > a:first-child { display: none; }
  .guide-page .guide-button-small { padding-inline: 10px; gap: 8px; }
  .guide-hero { grid-template-columns: 1fr; gap: 20px; padding: 28px 20px 22px; }
  .guide-hero h1 { font-size: 42px; }
  .guide-hero h1 br { display: none; }
  .guide-lead { font-size: 13px; margin-block: 12px 18px; }
  .guide-hero-art { max-width: 420px; width: 100%; margin-inline: auto; }
  .guide-facts { padding: 14px 20px; gap: 10px; flex-wrap: wrap; justify-content: flex-start; font-size: 11px; }
  .guide-section { margin-inline: 20px; padding-block: 24px; }
  .guide-page h2 { font-size: 22px; }
  .guide-section-heading { margin-bottom: 16px; }
  .guide-steps { grid-template-columns: 1fr; gap: 12px; }
  .guide-steps > li { display: grid; grid-template-columns: 110px 1fr; align-items: stretch; }
  .guide-step-art { display: flex; align-items: center; padding: 8px; }
  .guide-step-art svg { height: 92px; }
  .guide-step-copy { padding: 16px 12px; align-self: center; }
  .guide-step-copy h3 { font-size: 14px; gap: 6px; }
  .guide-step-copy p { font-size: 11px; }
  .guide-connect-options { grid-template-columns: 1fr; gap: 20px; }
  .guide-flow { padding: 12px; }
  .guide-flow-route { gap: 8px; }
  .guide-flow-route svg { height: 85px; }
  .guide-flow-route strong { font-size: 11px; }
  .guide-flow-route span { font-size: 10px; }
  .guide-flow figcaption { margin-top: 14px; }
  .guide-verification { padding: 16px 10px; }
  .guide-verification-cards { grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr); gap: 8px; }
  .guide-verification-card { padding: 14px 6px; }
  .guide-verification-card samp { font-size: clamp(12px, 3.8vw, 18px); }
  .guide-match-symbol { font-size: 26px; }
  .guide-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .guide-controls article { padding: 16px 12px; }
  .guide-control-icon { width: 30px; height: 30px; }
  .guide-controls h3 { font-size: 13px; }
  .guide-controls p { font-size: 11px; }
  .guide-finish { padding: 24px 20px; }
  .guide-footer { padding: 18px 20px; }
}
@media (max-width: 359px) {
  .guide-hero h1 { font-size: 36px; }
  .guide-steps > li { grid-template-columns: 88px 1fr; }
}
@media print {
  .guide-page { display: block; padding: 0; }
  .guide-shell { border: none; box-shadow: none; }
  .guide-header-links, .guide-finish { display: none; }
  .guide-step-art, .guide-flow, .guide-verification { break-inside: avoid; }
}