:root {
  color-scheme: light;
  --bg: #f6f7f8;
  --panel: #ffffff;
  --text: #171717;
  --muted: #555c66;
  --line: #d8dde3;
  --accent: #ff6b00;
  --accent-dark: #d95500;
  --shadow: 0 10px 28px rgba(20, 24, 31, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

body {
  min-height: 100%;
  margin: 0;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent-dark);
  font-weight: 800;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
}

a:focus-visible {
  outline: 3px solid rgba(255, 107, 0, 0.45);
  outline-offset: 4px;
  border-radius: 6px;
}

.page {
  width: min(100%, 1120px);
  margin: 0 auto;
  padding: 24px 14px 18px;
}

.hero {
  padding: 10px 2px 18px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--accent-dark);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0;
  /* text-transform: uppercase; */
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 6px;
  font-size: 2.1rem;
  line-height: 1.04;
  font-weight: 950;
  letter-spacing: 0;
}

h1 span {
  color: var(--accent);
  white-space: nowrap;
}

.lead {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.04rem;
  font-weight: 700;
}

.steps {
  display: grid;
  gap: 14px;
}

.step-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.step-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(246, 247, 248, 0.92)),
    #eef1f4;
  border-bottom: 1px solid var(--line);
}

.step-number {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 3px solid #fff;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 1.35rem;
  font-weight: 950;
  line-height: 1;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
}

.step-body {
  padding: 16px 16px 18px;
}

h2 {
  margin-bottom: 7px;
  font-size: 1.34rem;
  line-height: 1.25;
  font-weight: 950;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 7px;
  font-size: 1.18rem;
  line-height: 1.25;
  font-weight: 950;
  letter-spacing: 0;
}

.step-body p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 650;
}

.inline-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 1rem;
}

.footer {
  width: min(100%, 1120px);
  margin: 0 auto;
  padding: 8px 14px 30px;
  text-align: center;
}

.footer a {
  display: block;
  border: 2px solid var(--accent);
  border-radius: 8px;
  background: #fff;
  padding: 13px 16px;
  color: var(--accent-dark);
  font-size: 1rem;
  font-weight: 950;
  text-decoration: none;
}

.footer-links {
  display: grid;
  gap: 10px;
}

@media (min-width: 680px) {
  .page {
    padding-top: 34px;
  }

  h1 {
    font-size: 3rem;
  }

  .steps {
    gap: 18px;
  }

  .step-body {
    padding: 22px 22px 24px;
  }
}

@media (min-width: 768px) {
  .page {
    padding-right: 24px;
    padding-left: 24px;
  }

  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .guide-step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .footer {
    padding-right: 24px;
    padding-left: 24px;
  }
}

.qrv-note {
  margin: 0 auto 28px;
  max-width: 760px;
  padding: 14px 16px;
  border-left: 4px solid #f97316;
  border-radius: 12px;
  background: #f9fafb;
  color: #374151;
}

.qrv-note p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.8;
}

.qrv-note strong {
  color: #ea580c;
  font-weight: 700;
}

.guide-section {
  margin-top: 24px;
  scroll-margin-top: 16px;
}

.guide-section > h2 {
  margin: 0 0 10px;
  border: 1px solid var(--line);
  border-left: 5px solid var(--accent);
  border-radius: 8px;
  background: #fff7ed;
  padding: 12px 14px;
  box-shadow: 0 6px 18px rgba(20, 24, 31, 0.06);
}

.guide-section-iphone > h2 {
  border-left-color: #2563eb;
  background: #eff6ff;
}

.guide-section-android > h2 {
  border-left-color: #16a34a;
  background: #f0fdf4;
}

.guide-section-help > h2 {
  border-left-color: var(--accent);
  background: #fff7ed;
}

.install-nav {
  display: grid;
  gap: 10px;
  margin: -10px 0 28px;
}

.install-nav a {
  display: block;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px 14px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 950;
  text-align: center;
  text-decoration: none;
}

.guide-section-lead {
  margin: 0 2px 12px;
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 650;
}

.guide-step-grid {
  display: grid;
  gap: 14px;
}

.guide-step-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.guide-step-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(246, 247, 248, 0.92)),
    #eef1f4;
  border-bottom: 1px solid var(--line);
}

.guide-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.guide-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(246, 247, 248, 0.92)),
    #eef1f4;
  border-bottom: 1px solid var(--line);
}

.guide-list {
  margin: 0;
  padding: 16px 18px 18px 42px;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 650;
}

.guide-list li + li {
  margin-top: 8px;
}

.guide-help-card {
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.guide-help-card p {
  margin: 0;
  padding: 16px 18px 0;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.8;
}

.guide-help-card p:last-child {
  padding: 0 18px 18px;
}