@import url("https://fonts.googleapis.com/css2?family=Source+Sans+3:wght@400;600;700&family=Source+Serif+4:wght@600;700&family=Source+Code+Pro:wght@400;600&display=swap");

:root {
  --ink: #0f172a;
  --muted: #4b5563;
  --bg: #f8fafc;
  --panel: #ffffff;
  --accent: #2563eb;
  --border: rgba(15, 23, 42, 0.12);
  --shadow: 0 12px 24px rgba(15, 23, 42, 0.08);
  --mono: "Source Code Pro", "SFMono-Regular", ui-monospace, monospace;
  --body: "Source Sans 3", "Helvetica Neue", sans-serif;
  --display: "Source Serif 4", "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  max-width: 980px;
  margin: 0 auto;
  padding: 2.5rem 4vw;
}

@media (min-width: 1024px) {
  .page {
    padding: 2.5rem 3vw;
  }
}

@media (min-width: 1440px) {
  .page {
    max-width: none;
  }
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.top-links {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.95rem;
  align-items: center;
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: 0.6rem;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.5rem 0.9rem;
  font-size: 0.9rem;
  font-family: var(--body);
  cursor: pointer;
}

.menu-icon {
  width: 18px;
  height: 2px;
  background: var(--ink);
  display: inline-block;
  position: relative;
}

.menu-icon::before,
.menu-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--ink);
}

.menu-icon::before {
  top: -6px;
}

.menu-icon::after {
  top: 6px;
}

.mobile-menu {
  display: none;
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu.is-open {
  display: flex;
}

.mobile-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-controls {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-controls .btn {
  width: 100%;
  justify-content: center;
}

.top-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.version-select {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font-size: 0.9rem;
  font-family: var(--body);
}

.hero {
  margin-top: 2rem;
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(2.2rem, 4vw, 3rem);
  line-height: 1.15;
  margin: 0 0 0.8rem;
}

.hero p {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 1.6rem;
}

.cta-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 12px 25px rgba(37, 99, 235, 0.25);
}

.btn-secondary {
  border-color: rgba(18, 22, 28, 0.25);
  color: var(--ink);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 35px rgba(18, 22, 28, 0.15);
}

.docs-layout {
  display: flex;
  gap: 2rem;
  margin-top: 2.5rem;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  align-items: flex-start;
}

.docs-layout > .sidebar {
  flex: 0 0 220px;
}

.docs-layout > div {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  overflow-x: hidden;
}

.sidebar {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.4rem;
  box-shadow: var(--shadow);
  min-width: 0;
  overflow-wrap: anywhere;
  width: 100%;
  max-width: 100%;
}

.sidebar h3 {
  margin: 0 0 1rem;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.sidebar a {
  display: block;
  padding: 0.45rem 0.2rem;
  color: var(--ink);
  font-size: 0.95rem;
}

.sidebar a:hover {
  color: var(--accent);
}

.doc-section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.8rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.6rem;
  min-width: 0;
  overflow-wrap: anywhere;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

.doc-section h2 {
  font-family: var(--display);
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-size: 1.9rem;
}

.doc-section p {
  color: var(--muted);
  margin-top: 0;
}

.what-layout {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.what-copy {
  flex: 1 1 320px;
  min-width: 0;
}

.what-highlights {
  flex: 1 1 260px;
  max-width: 50%;
  margin-left: auto;
  padding: 1.2rem 1.4rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.what-highlights ul {
  margin: 0;
  padding: 0 0 0 1.1rem;
  color: var(--muted);
  columns: 2;
  column-gap: 1.5rem;
}

.what-highlights li {
  margin-bottom: 0.5rem;
  break-inside: avoid;
}

.contact-layout {
  display: flex;
  gap: 1.8rem;
  align-items: flex-start;
  flex-wrap: wrap;
  justify-content: space-between;
}

.contact-copy {
  flex: 1 1 200px;
  min-width: 0;
}

.contact-form {
  display: grid;
  gap: 1rem;
  flex: 1 1 320px;
  max-width: 50%;
  margin-left: auto;
}

.contact-form label {
  display: grid;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--ink);
}

.contact-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact-row label {
  flex: 1 1 180px;
  min-width: 0;
}

.contact-form input,
.contact-form textarea {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  font-family: var(--body);
  font-size: 0.95rem;
  background: #ffffff;
  color: var(--ink);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(37, 99, 235, 0.2);
  border-color: var(--accent);
}

.contact-form button {
  justify-self: start;
}

@media (max-width: 1024px) {
  .contact-layout {
    flex-direction: column;
  }

  .contact-form {
    width: 100%;
    max-width: 100%;
    margin-left: 0;
  }
}

.note {
  border-left: 4px solid var(--accent);
  background: rgba(37, 99, 235, 0.08);
  padding: 1rem 1.2rem;
  border-radius: 10px;
  margin: 1.2rem 0;
  color: var(--muted);
}

pre {
  background: #0b1220;
  color: #e5edf9;
  padding: 1.1rem 1.3rem;
  border-radius: 12px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.9rem;
  margin: 1rem 0;
  max-width: 100%;
}

code {
  font-family: var(--mono);
}

.command-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.command-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem;
  flex: 1 1 220px;
}

.command-card h4 {
  margin: 0 0 0.6rem;
}

.command-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.faq-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.faq-item {
  padding: 1rem 1.2rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  flex: 1 1 260px;
}

footer {
  color: var(--muted);
  font-size: 0.9rem;
}

footer .page {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
}

footer a {
  text-decoration: underline;
}

@media (max-width: 1023px) {
  .docs-layout {
    flex-direction: column;
  }

  .sidebar {
    flex: 1 1 auto;
  }
}

@media (max-width: 768px) {
  .page {
    padding: 2rem 5vw;
    width: 100%;
    max-width: 100%;
  }

  .docs-layout,
  .sidebar,
  .doc-section {
    width: 100%;
    max-width: 100%;
  }

  .topbar {
    flex-wrap: nowrap;
    align-items: center;
  }

  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .top-links,
  .top-controls {
    display: none;
  }

  .doc-section {
    padding: 1.5rem;
  }

  .what-highlights {
    max-width: 100%;
    margin-left: 0;
  }

  .contact-form {
    max-width: 100%;
    margin-left: 0;
  }

  .command-card {
    flex-basis: 100%;
  }
}

@media (max-width: 425px) {
  .page {
    padding: 1.4rem 4vw;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
  }

  .hero {
    margin-top: 1.5rem;
  }

  .doc-section {
    padding: 1.4rem;
  }

  .hero h1 {
    font-size: clamp(2rem, 7vw, 2.6rem);
  }

  pre {
    font-size: 0.85rem;
  }

  .mobile-menu {
    padding: 0.9rem;
  }
}

@media (max-width: 375px) {
  .page {
    padding: 1.2rem 4vw;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
  }

  .hero h1 {
    font-size: clamp(1.8rem, 8vw, 2.3rem);
  }
}

@media (max-width: 320px) {
  .page {
    padding: 1rem 4vw;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
  }

  .mobile-menu {
    padding: 0.8rem;
  }
}