:root {
  --ink: #17212b;
  --muted: #5e6973;
  --paper: #ffffff;
  --mist: #f3f7f4;
  --navy: #102335;
  --navy-soft: #17364a;
  --green: #0a8f59;
  --green-deep: #087147;
  --green-pale: #e4f7ed;
  --gold: #e8b62d;
  --gold-deep: #a76e00;
  --line: #d9e4dd;
  --shadow: 0 18px 50px rgba(16, 35, 53, 0.1);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--mist);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.72;
}

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

a {
  color: var(--green-deep);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--gold-deep);
}

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 100;
  padding: 0.65rem 0.9rem;
  color: var(--navy);
  background: var(--gold);
  border-radius: 0.5rem;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  color: #fff;
  background: rgba(16, 35, 53, 0.97);
  border-bottom: 1px solid rgba(232, 182, 45, 0.28);
  box-shadow: 0 8px 24px rgba(16, 35, 53, 0.18);
  backdrop-filter: blur(14px);
}

.nav-shell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 2rem, 1160px);
  min-height: 4.7rem;
  margin-inline: auto;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: #fff;
  font-weight: 850;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.site-brand:hover {
  color: var(--gold);
}

.site-brand img {
  width: 2.75rem;
  height: 2.75rem;
  border: 2px solid var(--gold);
  border-radius: 0.85rem;
}

.menu-toggle {
  display: grid;
  gap: 0.28rem;
  width: 2.9rem;
  height: 2.9rem;
  place-content: center;
  color: inherit;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0.75rem;
  cursor: pointer;
}

.menu-toggle > span:not(.sr-only) {
  width: 1.25rem;
  height: 2px;
  background: currentColor;
  border-radius: 10px;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle[aria-expanded="true"] > span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] > span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] > span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.primary-nav {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  left: 0;
  display: none;
  padding: 0.6rem;
  background: var(--navy-soft);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.primary-nav.is-open {
  display: grid;
}

.primary-nav a {
  padding: 0.75rem 0.9rem;
  color: #eef8f3;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0.65rem;
}

.primary-nav a:hover,
.primary-nav a[aria-current="page"] {
  color: var(--navy);
  background: var(--gold);
}

.page-shell {
  width: min(100% - 1.25rem, 1080px);
  margin: 1.1rem auto 3rem;
}

.breadcrumbs {
  margin: 0 0 0.8rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.breadcrumbs li + li::before {
  margin-right: 0.45rem;
  color: var(--gold-deep);
  content: "/";
}

.content-card {
  padding: clamp(1.1rem, 4vw, 3.6rem);
  background: var(--paper);
  border: 1px solid rgba(16, 35, 53, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

h1,
h2,
h3 {
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.2;
  text-wrap: balance;
}

h1 {
  position: relative;
  max-width: 18ch;
  margin: 0 0 1.2rem;
  padding-top: 1rem;
  font-size: clamp(2.1rem, 8vw, 4.2rem);
  letter-spacing: -0.045em;
}

h1::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 4.25rem;
  height: 0.35rem;
  background: var(--gold);
  border-radius: 999px;
  content: "";
}

h2 {
  margin: 3.2rem 0 1rem;
  font-size: clamp(1.6rem, 5vw, 2.35rem);
  letter-spacing: -0.025em;
}

h3 {
  margin: 2.2rem 0 0.75rem;
  font-size: clamp(1.25rem, 4vw, 1.55rem);
}

p,
li {
  max-width: 78ch;
}

strong {
  color: var(--navy);
}

.brand-link {
  color: var(--green-deep);
  font-weight: 800;
}

.download-panel {
  display: grid;
  justify-items: center;
  gap: 1rem;
  margin: 2.2rem 0;
  padding: 1.4rem;
  background: linear-gradient(145deg, var(--green-pale), #fff9df);
  border: 1px solid rgba(10, 143, 89, 0.2);
  border-radius: var(--radius);
}

.download-panel img {
  width: clamp(7.5rem, 35vw, 11.25rem);
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  border: 4px solid #fff;
  border-radius: 2rem;
  box-shadow: 0 16px 36px rgba(10, 143, 89, 0.2);
}

.download-button {
  display: inline-flex;
  min-width: 10rem;
  min-height: 3.15rem;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  color: var(--navy);
  font-weight: 850;
  text-decoration: none;
  background: var(--gold);
  border: 2px solid #c99509;
  border-radius: 999px;
  box-shadow: 0 9px 0 #9c6800;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.download-button:hover {
  color: var(--navy);
  transform: translateY(2px);
  box-shadow: 0 7px 0 #9c6800;
}

.feature-grid {
  display: grid;
  gap: 0.9rem;
  margin: 2.2rem 0;
}

.feature-card {
  position: relative;
  min-height: 9.5rem;
  padding: 1.1rem;
  overflow: hidden;
  background: #f8fbf9;
  border: 1px solid var(--line);
  border-radius: 1rem;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.feature-card::after {
  position: absolute;
  right: -2.1rem;
  bottom: -2.1rem;
  width: 6.4rem;
  height: 6.4rem;
  background: var(--green-pale);
  border-radius: 50%;
  content: "";
}

.feature-card:hover,
.feature-card:focus-visible {
  z-index: 1;
  border-color: var(--gold);
  box-shadow: 0 14px 28px rgba(16, 35, 53, 0.1);
  transform: translateY(-4px);
}

.feature-number {
  color: var(--gold-deep);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.feature-card h2 {
  margin: 0.55rem 0 0.25rem;
  font-family: inherit;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.feature-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--green-deep);
  font-size: 1.25rem;
  font-weight: 850;
  line-height: 1.3;
}

.toc {
  margin: 2rem 0 3rem;
  overflow: hidden;
  background: var(--navy);
  border: 1px solid rgba(232, 182, 45, 0.4);
  border-radius: 1rem;
}

.toc summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.15rem;
  color: #fff;
  font-weight: 850;
  cursor: pointer;
  list-style: none;
}

.toc summary::-webkit-details-marker {
  display: none;
}

.toc summary span {
  color: var(--gold);
  font-size: 1.5rem;
  transition: transform 180ms ease;
}

.toc[open] summary span {
  transform: rotate(45deg);
}

.toc nav {
  max-height: 65vh;
  padding: 0 1rem 1rem;
  overflow: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.toc ol {
  padding-left: 1.3rem;
}

.toc li {
  color: var(--gold);
}

.toc .toc-level-3 {
  margin-left: 1rem;
  font-size: 0.94rem;
}

.toc a {
  display: inline-block;
  padding: 0.23rem 0;
  color: #e8f7ef;
}

.article-body h2 {
  padding-bottom: 0.65rem;
  border-bottom: 2px solid var(--green-pale);
}

.article-body ul,
.article-body ol {
  padding-left: 1.25rem;
}

.article-body li {
  padding: 0.18rem 0 0.18rem 0.35rem;
}

.article-body li::marker {
  color: var(--green);
  font-weight: 800;
}

.screenshot-slider {
  margin: 1.5rem 0 3rem;
  padding: clamp(0.75rem, 2vw, 1.25rem);
  overflow: hidden;
  background:
    radial-gradient(circle at top, rgba(10, 143, 89, 0.28), transparent 42%),
    var(--navy);
  border: 1px solid rgba(232, 182, 45, 0.5);
  border-radius: var(--radius);
  box-shadow: 0 18px 42px rgba(16, 35, 53, 0.18);
}

.screenshot-stage {
  position: relative;
}

.screenshot-viewport {
  display: grid;
  min-height: min(70vh, 38rem);
  place-items: center;
  overflow: hidden;
  background: #061d20;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  touch-action: pan-y;
}

.screenshot-slide {
  display: grid;
  width: 100%;
  margin: 0;
  place-items: center;
}

.screenshot-slide[hidden] {
  display: none;
}

.screenshot-slide img {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: min(70vh, 52rem);
  object-fit: contain;
  border-radius: 0.75rem;
}

.slider-arrow {
  position: absolute;
  top: 50%;
  z-index: 2;
  display: grid;
  width: 2.9rem;
  height: 2.9rem;
  padding: 0;
  color: var(--navy);
  font: inherit;
  font-size: 1.45rem;
  font-weight: 900;
  place-items: center;
  background: rgba(232, 182, 45, 0.96);
  border: 2px solid #fff7d2;
  border-radius: 50%;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
  cursor: pointer;
  transform: translateY(-50%);
  transition: transform 160ms ease, background 160ms ease;
}

.slider-arrow:hover {
  background: #ffd75c;
  transform: translateY(-50%) scale(1.06);
}

.slider-previous {
  left: 0.55rem;
}

.slider-next {
  right: 0.55rem;
}

.slider-toolbar {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.9rem;
}

.slider-counter {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-align: center;
}

.slider-thumbnails {
  display: flex;
  gap: 0.55rem;
  padding: 0.15rem 0.15rem 0.7rem;
  overflow-x: auto;
  scrollbar-color: var(--gold) rgba(255, 255, 255, 0.1);
  scroll-snap-type: x proximity;
}

.slider-thumbnail {
  flex: 0 0 3.8rem;
  height: 5.2rem;
  padding: 0.15rem;
  overflow: hidden;
  background: #0b3034;
  border: 2px solid transparent;
  border-radius: 0.65rem;
  cursor: pointer;
  opacity: 0.64;
  scroll-snap-align: center;
  transition: border-color 160ms ease, opacity 160ms ease, transform 160ms ease;
}

.slider-thumbnail:hover,
.slider-thumbnail[aria-current="true"] {
  border-color: var(--gold);
  opacity: 1;
  transform: translateY(-2px);
}

.slider-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0.4rem;
}

.table-wrap {
  margin: 1.5rem 0 2rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 0.95rem;
  box-shadow: 0 8px 28px rgba(16, 35, 53, 0.06);
}

table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  background: #fff;
}

th,
td {
  padding: 0.82rem 0.9rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

thead th {
  position: sticky;
  top: 0;
  color: #fff;
  background: var(--green-deep);
}

tbody th {
  color: var(--navy);
  background: #f4faf6;
}

tbody tr:hover td,
tbody tr:hover th {
  background: #fff8df;
}

tbody tr:last-child th,
tbody tr:last-child td {
  border-bottom: 0;
}

.faq-card {
  margin: 0.8rem 0;
  background: #fbfdfb;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
}

.faq-card summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  cursor: pointer;
  list-style: none;
}

.faq-card summary::-webkit-details-marker {
  display: none;
}

.faq-card summary h3 {
  margin: 0;
  font-family: inherit;
  font-size: 1.05rem;
}

.faq-card summary > span {
  color: var(--green);
  font-size: 1.5rem;
  transition: transform 180ms ease;
}

.faq-card[open] summary > span {
  transform: rotate(45deg);
}

.faq-card > div {
  padding: 0 1rem 0.7rem;
  border-top: 1px solid var(--line);
}

hr {
  margin: 3rem 0;
  border: 0;
  border-top: 1px solid var(--line);
}

.site-footer {
  color: #dce9e3;
  background: var(--navy);
  border-top: 4px solid var(--gold);
}

.footer-grid,
.footer-bottom {
  width: min(100% - 2rem, 1080px);
  margin-inline: auto;
}

.footer-grid {
  display: grid;
  gap: 1.8rem;
  padding: 2.4rem 0;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.footer-brand img {
  width: 4.25rem;
  height: 4.25rem;
  border: 2px solid var(--gold);
  border-radius: 1.15rem;
}

.footer-brand p {
  margin: 0;
  font-size: 1.2rem;
}

.footer-brand strong {
  color: #fff;
}

.footer-grid nav {
  display: grid;
  gap: 0.55rem;
}

.footer-grid a {
  color: #dce9e3;
}

.footer-grid a:hover {
  color: var(--gold);
}

.footer-bottom {
  padding: 1rem 0 1.4rem;
  font-size: 0.88rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  margin: 0;
}

@media (min-width: 620px) {
  .page-shell {
    width: min(100% - 2rem, 1080px);
    margin-top: 1.6rem;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

@media (min-width: 820px) {
  .menu-toggle {
    display: none;
  }

  .primary-nav {
    position: static;
    display: flex;
    gap: 0.2rem;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
  }

  .primary-nav a {
    padding: 0.55rem 0.8rem;
  }

  .feature-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .feature-grid:has(.feature-card:nth-child(3):last-child) {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-grid nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}