:root {
  --doc-navy: #063b63;
  --doc-blue: #0b6f98;
  --doc-teal: #197665;
  --doc-teal-dark: #0f5b50;
  --doc-ink: #183448;
  --doc-muted: #536f80;
  --doc-paper: #ffffff;
  --doc-canvas: #edf4f7;
  --doc-line: #cfdee6;
  --doc-soft: #f4f8fa;
  --doc-focus: #f4c84a;
  --doc-shadow: 0 14px 36px rgba(6, 59, 99, .12);
  --doc-radius: 18px;
  --doc-font-scale: 1;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
  color-scheme: only light;
}

body.pih-documentation {
  margin: 0;
  background:
    radial-gradient(circle at 100% 0, rgba(25, 118, 101, .09), transparent 28rem),
    linear-gradient(180deg, #f7fbfd 0, var(--doc-canvas) 36rem);
  color: var(--doc-ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  font-size: calc(17px * var(--doc-font-scale));
  line-height: 1.72;
  min-height: 100vh;
  text-rendering: optimizeLegibility;
}

body.pih-documentation a {
  color: #075f8b;
  text-decoration-thickness: .08em;
  text-underline-offset: .16em;
}

body.pih-documentation a:hover {
  color: var(--doc-teal-dark);
}

body.pih-documentation a:focus-visible,
body.pih-documentation button:focus-visible,
body.pih-documentation input:focus-visible,
body.pih-documentation summary:focus-visible {
  outline: 3px solid var(--doc-focus);
  outline-offset: 3px;
}

.pih-doc-skip {
  position: fixed;
  left: 12px;
  top: -80px;
  z-index: 10002;
  background: #fff;
  color: var(--doc-navy);
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 800;
  box-shadow: var(--doc-shadow);
}

.pih-doc-skip:focus {
  top: 12px;
}

.pih-doc-progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 4px;
  width: 0;
  z-index: 10003;
  background: linear-gradient(90deg, #f4c84a, #24a482);
  transition: width .08s linear;
}

.pih-docbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  color: #fff;
  background: rgba(6, 48, 82, .97);
  border-bottom: 1px solid rgba(255, 255, 255, .2);
  box-shadow: 0 8px 28px rgba(4, 35, 58, .18);
  backdrop-filter: blur(14px);
}

.pih-docbar-inner {
  width: min(1440px, calc(100% - 30px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
}

.pih-doc-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
  color: #fff !important;
  text-decoration: none;
}

.pih-doc-brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  color: var(--doc-navy);
  background: linear-gradient(145deg, #f6d052, #fff3ad);
  font-size: 16px;
  font-weight: 950;
  letter-spacing: -.04em;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .4);
}

.pih-doc-brand-copy {
  display: grid;
  line-height: 1.14;
}

.pih-doc-brand-copy strong {
  font-size: 1.02rem;
  letter-spacing: .02em;
}

.pih-doc-brand-copy small {
  color: #bcd7e6;
  font-size: .72rem;
  font-weight: 700;
}

.pih-doc-menu-toggle {
  display: none;
  margin-left: auto;
  min-width: 46px;
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 12px;
  color: #fff;
  background: rgba(255, 255, 255, .08);
  font: inherit;
  font-weight: 800;
}

.pih-doc-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
  flex: 1;
}

.pih-doc-nav > a,
.pih-doc-nav summary {
  display: flex;
  align-items: center;
  min-height: 42px;
  padding: 8px 11px;
  border-radius: 10px;
  color: #e9f4f8 !important;
  font-size: .83rem;
  font-weight: 780;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}

.pih-doc-nav > a:hover,
.pih-doc-nav summary:hover,
.pih-doc-nav > a[aria-current="page"] {
  color: #fff !important;
  background: rgba(255, 255, 255, .13);
}

.pih-doc-methods {
  position: relative;
}

.pih-doc-methods summary {
  list-style: none;
}

.pih-doc-methods summary::-webkit-details-marker {
  display: none;
}

.pih-doc-methods summary::after {
  content: "⌄";
  margin-left: 6px;
}

.pih-doc-methods[open] summary {
  background: rgba(255, 255, 255, .13);
}

.pih-doc-method-list {
  position: absolute;
  top: calc(100% + 9px);
  left: 0;
  width: min(390px, 88vw);
  max-height: min(66vh, 620px);
  overflow: auto;
  padding: 9px;
  border: 1px solid #c8dbe5;
  border-radius: 15px;
  background: #fff;
  box-shadow: 0 20px 48px rgba(6, 40, 66, .24);
}

.pih-doc-method-list a {
  display: grid;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--doc-ink) !important;
  font-size: .88rem;
  font-weight: 700;
  line-height: 1.35;
  text-decoration: none;
}

.pih-doc-method-list a:hover,
.pih-doc-method-list a[aria-current="page"] {
  background: #eaf4f5;
  color: var(--doc-teal-dark) !important;
}

.pih-doc-reading-tools {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.pih-doc-reading-tools button {
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 9px;
  color: #fff;
  background: rgba(255, 255, 255, .07);
  font: inherit;
  font-size: .8rem;
  font-weight: 850;
  cursor: pointer;
}

.pih-doc-reading-tools button:hover {
  background: rgba(255, 255, 255, .16);
}

body.pih-documentation > header:not(.pih-docbar),
body.pih-documentation .hero {
  width: min(1180px, calc(100% - 32px));
  margin: 28px auto 0;
  padding: clamp(24px, 5vw, 46px);
  border-radius: 24px;
  color: #fff;
  background:
    linear-gradient(120deg, rgba(4, 50, 85, .98), rgba(14, 106, 102, .94)),
    var(--doc-navy);
  box-shadow: var(--doc-shadow);
}

body.pih-documentation > header:not(.pih-docbar) h1,
body.pih-documentation .hero h1 {
  max-width: 900px;
  margin: .18em 0;
  color: #fff;
  font-size: clamp(2rem, 4.6vw, 3.55rem);
  line-height: 1.06;
  letter-spacing: -.035em;
}

body.pih-documentation > header:not(.pih-docbar) p,
body.pih-documentation .hero p {
  max-width: 850px;
  margin: .75rem 0 0;
  color: #d9edf2;
  font-size: 1.04rem;
}

body.pih-documentation > header:not(.pih-docbar) small,
body.pih-documentation .hero .tag {
  color: #fff;
  font-size: .78rem;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}

body.pih-documentation main,
body.pih-documentation main.wrap {
  width: min(1180px, calc(100% - 32px));
  max-width: 1180px;
  margin: 0 auto;
  padding: 26px 0 72px;
}

body.pih-documentation main > .back {
  display: none;
}

.pih-page-nav {
  margin: 22px 0;
  border: 1px solid #c8dce5;
  border-radius: 16px;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 8px 26px rgba(6, 59, 99, .07);
}

.pih-page-nav summary {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 11px 16px;
  color: var(--doc-navy);
  font-weight: 850;
  cursor: pointer;
}

.pih-page-nav summary::before {
  content: "☰";
  color: var(--doc-teal);
}

.pih-page-nav-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 6px;
  padding: 0 12px 14px;
}

.pih-page-nav-links a {
  padding: 8px 10px;
  border-radius: 9px;
  background: var(--doc-soft);
  color: var(--doc-ink) !important;
  font-size: .86rem;
  font-weight: 680;
  line-height: 1.35;
  text-decoration: none;
}

.pih-page-nav-links a:hover {
  background: #e2f0ef;
}

body.pih-documentation .card,
body.pih-documentation section.card {
  margin: 18px 0;
  padding: clamp(19px, 3.5vw, 28px);
  border: 1px solid var(--doc-line);
  border-radius: var(--doc-radius);
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 8px 25px rgba(8, 62, 91, .065);
}

body.pih-documentation h1,
body.pih-documentation h2,
body.pih-documentation h3,
body.pih-documentation h4 {
  text-wrap: balance;
}

body.pih-documentation h2 {
  margin: 0 0 .75rem;
  color: var(--doc-navy);
  font-size: clamp(1.45rem, 2.5vw, 2rem);
  line-height: 1.2;
}

body.pih-documentation h3 {
  color: #12677a;
  font-size: clamp(1.12rem, 2vw, 1.4rem);
  line-height: 1.3;
}

body.pih-documentation p,
body.pih-documentation li,
body.pih-documentation td {
  max-width: 90ch;
}

body.pih-documentation .grid,
body.pih-documentation .authors {
  gap: 14px;
}

body.pih-documentation .metric,
body.pih-documentation .author,
body.pih-documentation .rule,
body.pih-documentation .note {
  border-radius: 12px;
}

body.pih-documentation .metric {
  font-size: .96rem;
}

body.pih-documentation table {
  width: 100%;
  font-size: .92rem;
  line-height: 1.5;
}

body.pih-documentation th,
body.pih-documentation td {
  min-width: 9rem;
  padding: 11px 12px;
}

body.pih-documentation th {
  top: 0;
  color: #fff;
  background: var(--doc-navy);
}

body.pih-documentation .table-wrap {
  overflow: auto;
  max-width: 100%;
  border: 1px solid var(--doc-line);
  border-radius: 13px;
  background: #fff;
  -webkit-overflow-scrolling: touch;
}

body.pih-documentation input[type="search"] {
  min-height: 48px;
  padding: 11px 14px;
  border: 1px solid #9fbcca;
  border-radius: 11px;
  background: #fff;
  color: var(--doc-ink);
  font: inherit;
}

.pih-doc-footer {
  margin-top: 28px;
  padding: 30px 20px calc(30px + env(safe-area-inset-bottom));
  color: #d9ebf2;
  background: #082f4f;
}

.pih-doc-footer-inner {
  width: min(1180px, 100%);
  margin: auto;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 16px;
}

.pih-doc-footer strong,
.pih-doc-footer small {
  display: block;
}

.pih-doc-footer small {
  margin-top: 4px;
  color: #aecaD9;
}

.pih-doc-footer a {
  color: #fff !important;
}

.pih-doc-top {
  position: fixed;
  right: 18px;
  bottom: calc(18px + env(safe-area-inset-bottom));
  z-index: 900;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: var(--doc-teal);
  box-shadow: 0 10px 28px rgba(6, 59, 99, .24);
  font-size: 1.2rem;
  font-weight: 900;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: .18s ease;
}

.pih-doc-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

body.pih-documentation[data-font-size="small"] {
  --doc-font-scale: .94;
}

body.pih-documentation[data-font-size="large"] {
  --doc-font-scale: 1.09;
}

@media (max-width: 1100px) {
  .pih-docbar-inner {
    flex-wrap: wrap;
    gap: 10px;
    padding: 10px 0;
  }

  .pih-doc-menu-toggle {
    display: inline-grid;
    place-items: center;
  }

  .pih-doc-nav {
    display: none;
    flex: 1 0 100%;
    align-items: stretch;
    flex-direction: column;
    padding: 7px;
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 14px;
    background: rgba(2, 36, 61, .82);
  }

  .pih-docbar.menu-open .pih-doc-nav {
    display: flex;
  }

  .pih-doc-nav > a,
  .pih-doc-nav summary {
    width: 100%;
    font-size: .95rem;
  }

  .pih-doc-method-list {
    position: static;
    width: 100%;
    max-height: 44vh;
    margin-top: 5px;
    box-shadow: none;
  }

  .pih-doc-reading-tools {
    margin: 6px 0 0;
  }
}

@media (max-width: 720px) {
  html {
    scroll-padding-top: 88px;
  }

  body.pih-documentation {
    font-size: calc(17px * var(--doc-font-scale));
    line-height: 1.68;
    background: #edf4f7 !important;
  }

  .pih-docbar-inner {
    width: min(100% - 20px, 1440px);
    min-height: 64px;
  }

  .pih-doc-menu-toggle {
    min-width: 78px;
    min-height: 46px;
    padding: 0 12px;
    font-size: .9rem;
  }

  .pih-docbar.menu-open .pih-doc-nav {
    max-height: calc(100dvh - 78px);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 9px;
  }

  .pih-doc-nav > a,
  .pih-doc-nav summary {
    min-height: 48px;
    padding: 12px 13px;
    font-size: 1rem;
  }

  .pih-doc-reading-tools button {
    min-width: 48px;
    min-height: 46px;
  }

  .pih-doc-brand-copy small {
    display: none;
  }

  body.pih-documentation > header:not(.pih-docbar),
  body.pih-documentation .hero {
    width: calc(100% - 20px);
    margin-top: 14px;
    padding: 24px 20px;
    border-radius: 18px;
  }

  body.pih-documentation > header:not(.pih-docbar) h1,
  body.pih-documentation .hero h1 {
    font-size: clamp(1.8rem, 9vw, 2.55rem);
  }

  body.pih-documentation main,
  body.pih-documentation main.wrap {
    width: calc(100% - 20px);
    padding-top: 12px;
  }

  body.pih-documentation .card,
  body.pih-documentation section.card {
    margin: 12px 0;
    padding: 18px;
    border-radius: 15px;
    background: #ffffff !important;
  }

  body.pih-documentation .table-wrap table {
    min-width: 720px;
    font-size: .94rem;
  }

  body.pih-documentation th,
  body.pih-documentation td {
    padding: 10px 11px;
  }

  body.pih-documentation .table-wrap {
    margin-right: -8px;
    margin-left: -8px;
    border-radius: 12px;
    overscroll-behavior-x: contain;
  }

  .pih-page-nav-links {
    grid-template-columns: 1fr;
  }

  .pih-doc-footer-inner {
    grid-template-columns: 1fr;
  }

  body.pih-documentation .authors {
    grid-template-columns: 1fr;
  }
}

@media print {
  .pih-docbar,
  .pih-doc-progress,
  .pih-page-nav,
  .pih-doc-top,
  .pih-doc-footer {
    display: none !important;
  }

  body.pih-documentation {
    background: #fff;
    color: #111;
    font-size: 11pt;
  }

  body.pih-documentation main,
  body.pih-documentation main.wrap,
  body.pih-documentation > header:not(.pih-docbar),
  body.pih-documentation .hero {
    width: 100%;
    max-width: none;
    box-shadow: none;
  }

  body.pih-documentation .card,
  body.pih-documentation section.card {
    break-inside: avoid;
    box-shadow: none;
  }
}