:root {
  --bg: #fafafa;
  --sidebar: #f5f3f4;
  --card: #fff;
  --active: #eae3e6;
  --text: #292929;
  --muted: #777;
  --blue: #2583dc;
  --blue-dark: #176dbd;
  --border: #e9e9e9;
  --radius-lg: 16px;
  --radius-md: 12px;
  --shadow: 0 4px 20px rgba(0, 0, 0, .04);
  --shadow-hover: 0 10px 30px rgba(0, 0, 0, .08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
}

a {
  color: inherit;
}

.ios-sidebar {
  position: fixed;
  z-index: 50;
  inset: 0 auto 0 0;
  display: flex;
  width: 280px;
  overflow-y: auto;
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  flex-direction: column;
  background: var(--sidebar);
}

.ios-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 12px 32px;
  color: #111;
  font-size: 20px;
  font-weight: 750;
  text-decoration: none;
}

.ios-brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.nav-group {
  margin-bottom: 24px;
}

.nav-group.nav-bottom {
  margin-top: auto;
  margin-bottom: 0;
}

.nav-title {
  margin-bottom: 8px;
  padding: 0 12px;
  color: #999;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
  border-radius: 8px;
  padding: 11px 12px;
  color: #333;
  font-size: 15px;
  font-weight: 550;
  text-decoration: none;
  transition: background .2s ease, color .2s ease;
}

.nav-link span {
  width: 24px;
  text-align: center;
}

.nav-link:hover,
.nav-link.is-active {
  color: #111;
  background: var(--active);
}

.nav-link.is-active {
  font-weight: 700;
}

.ios-main {
  width: min(980px, calc(100% - 280px));
  margin-left: 280px;
  padding: 44px 40px 28px;
}

.review-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  border: 1px solid #fed7aa;
  border-radius: 12px;
  padding: 13px 16px;
  color: #9a5310;
  font-size: 14px;
  background: #fff7ed;
}

.review-banner strong {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: 4px 9px;
  color: #fff;
  font-size: 12px;
  background: #f08b2b;
}

.guide-section {
  scroll-margin-top: 28px;
  margin-bottom: 58px;
}

.guide-section[hidden] {
  display: none;
}

.guide-section.is-active {
  animation: guide-section-in .22s ease both;
}

@keyframes guide-section-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-header,
.section-header {
  margin-bottom: 32px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.page-header h1,
.section-header h2 {
  margin: 0 0 12px;
  color: #171717;
  font-size: clamp(30px, 5vw, 40px);
  line-height: 1.15;
  letter-spacing: -.03em;
}

.section-header h2 {
  font-size: clamp(26px, 4vw, 34px);
}

.section-description {
  max-width: 700px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.page-header > p:last-child {
  max-width: 700px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.alert-box {
  margin: 0 0 24px;
  border-left: 4px solid var(--blue);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  color: #1e4f88;
  font-size: 15px;
  line-height: 1.65;
  background: rgba(37, 131, 220, .08);
}

.alert-box.warning {
  border-left-color: #f59e0b;
  color: #985f0f;
  background: rgba(245, 158, 11, .09);
}

.step-card {
  margin-bottom: 24px;
  border: 1px solid rgba(0, 0, 0, .025);
  border-radius: var(--radius-lg);
  padding: 32px;
  background: var(--card);
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease;
}

.step-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.apple-id-card {
  border-top: 4px solid var(--blue);
}

.apple-id-card > h2 {
  margin: 0 0 20px;
  font-size: 23px;
}

.apple-id-card > h3 {
  margin: 26px 0 10px;
  font-size: 17px;
}

.apple-id-card ol {
  margin: 0 0 18px 22px;
  padding: 0;
  color: var(--muted);
  line-height: 1.75;
}

.step-header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 24px;
}

.step-number {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  place-items: center;
  border-radius: 50%;
  color: #171717;
  font-size: 18px;
  font-weight: 800;
  background: var(--active);
}

.step-header h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.step-header p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.image-grid {
  display: grid;
  gap: 12px;
  align-items: start;
}

.image-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 660px;
  margin: 0 auto;
}

.image-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.image-grid img,
.tutorial-image {
  display: block;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
}

.tutorial-image.phone {
  width: min(360px, 100%);
  margin: 0 auto;
}

.tutorial-image.panel-capture {
  width: min(640px, 100%);
  margin: 0 auto;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.app-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-decoration: none;
  background: var(--card);
  box-shadow: var(--shadow);
  transition: border .2s ease, transform .2s ease, box-shadow .2s ease;
}

.app-card:hover,
.app-card.is-active {
  transform: translateY(-3px);
  border-color: var(--blue);
  box-shadow: var(--shadow-hover);
}

.app-icon {
  display: grid;
  width: 62px;
  height: 62px;
  flex: 0 0 62px;
  place-items: center;
  border-radius: 16px;
  font-size: 30px;
  background: #eff6ff;
}

.app-icon.lilac {
  background: #f3f0ff;
}

.app-copy h2 {
  margin: 0 0 7px;
  font-size: 18px;
}

.app-copy p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.tag {
  display: inline-flex;
  border-radius: 5px;
  padding: 3px 8px;
  color: #3c56b5;
  font-size: 11px;
  font-weight: 750;
  background: #eef2ff;
}

.tag.pink {
  color: #b51f64;
  background: #fce7f3;
}

.client-tutorial {
  padding-top: 12px;
}

.ios-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid var(--border);
  padding: 24px 0 8px;
  color: #888;
  font-size: 13px;
}

.ios-footer nav {
  display: flex;
  gap: 18px;
}

.ios-footer a {
  text-decoration: none;
}

.ios-footer a:hover {
  color: var(--blue);
}

.mobile-menu-btn {
  display: none;
}

@media (max-width: 900px) {
  .ios-sidebar {
    transform: translateX(-102%);
    transition: transform .25s ease;
  }

  .ios-sidebar.is-open {
    transform: translateX(0);
    box-shadow: 12px 0 32px rgba(0, 0, 0, .16);
  }

  .mobile-menu-btn {
    position: fixed;
    z-index: 70;
    right: 18px;
    bottom: 18px;
    display: grid;
    width: 50px;
    height: 50px;
    place-items: center;
    border: 0;
    border-radius: 50%;
    color: #fff;
    font-size: 22px;
    background: var(--blue);
    box-shadow: 0 8px 24px rgba(37, 131, 220, .34);
  }

  .ios-main {
    width: 100%;
    margin-left: 0;
    padding: 28px 24px;
  }
}

@media (max-width: 680px) {
  .ios-main {
    padding: 22px 16px;
  }

  .review-banner {
    align-items: flex-start;
    flex-direction: column;
  }

  .step-card {
    padding: 22px 18px;
  }

  .app-grid {
    grid-template-columns: 1fr;
  }

  .image-grid.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
  }

  .image-grid.two {
    gap: 8px;
  }

  .step-header {
    gap: 12px;
  }

  .ios-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}
.subtle-doc-link {
  display: inline-flex;
  margin-left: 8px;
  color: #929292;
  font-size: 12px;
  text-decoration: underline;
  text-decoration-color: #d1d1d1;
  text-underline-offset: 3px;
}

.subtle-doc-link:hover {
  color: var(--blue-dark);
}

.quick-start-flow {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.quick-start-intro {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.quick-start-step {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 10px;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  color: inherit;
  background: #fafafa;
  text-decoration: none;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.quick-start-step:hover {
  border-color: rgba(37, 131, 220, .4);
  box-shadow: 0 8px 20px rgba(37, 131, 220, .1);
  transform: translateY(-1px);
}

.quick-start-step:hover strong {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.quick-start-flow span {
  grid-row: 1 / 3;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: #fff;
  font-weight: 800;
  background: #2583dc;
}

.quick-start-flow strong {
  color: var(--blue-dark);
}

.quick-start-flow p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.standalone-guide {
  width: min(980px, 100%);
  max-width: 1180px;
  margin: 0 auto;
}

.back-link {
  margin: 14px 0 0;
}

@media (max-width: 680px) {
  .quick-start-flow {
    grid-template-columns: 1fr;
  }

  .subtle-doc-link {
    margin: 8px 0 0;
  }
}