:root {
  --green: #04aa6d;
  --green-dark: #059862;
  --green-hover: #037a57;
  --topbar: #282a35;
  --sidebar: #e7e9eb;
  --example: #e7e9eb;
  --code-border: #04aa6d;
  --text: #000;
  --muted: #555;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: #fff;
}

a {
  color: var(--green);
  text-decoration: none;
}

a:hover {
  color: var(--green-hover);
}

.topbar {
  background: var(--topbar);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 40;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.brand-mark {
  background: var(--green);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 4px;
  display: grid;
  place-items: center;
  font-size: 18px;
}

.top-links {
  display: flex;
  gap: 4px;
}

.top-links a {
  color: #fff;
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 15px;
}

.top-links a:hover,
.top-links a.active {
  background: var(--green);
  color: #fff;
}

.subbar {
  background: var(--green);
  color: #fff;
  padding: 10px 24px;
  font-size: 18px;
  font-weight: 600;
}

.layout {
  display: grid;
  grid-template-columns: 230px 1fr;
  min-height: calc(100vh - 96px);
}

.sidebar {
  background: var(--sidebar);
  padding: 16px 0 40px;
  border-right: 1px solid #d4d4d4;
}

.sidebar h4 {
  margin: 12px 16px 8px;
  font-size: 18px;
}

.sidebar a {
  display: block;
  color: #000;
  padding: 6px 18px;
}

.sidebar a:hover,
.sidebar a.active {
  background: var(--green);
  color: #fff;
}

.content {
  max-width: 980px;
  padding: 24px 40px 80px;
}

.content h1 {
  font-size: 38px;
  font-weight: 400;
  margin: 0 0 8px;
}

.content h2 {
  font-size: 28px;
  font-weight: 400;
  margin: 36px 0 12px;
  padding-top: 8px;
  scroll-margin-top: 72px;
}

.content p {
  margin: 12px 0;
}

.note {
  background: #ffffcc;
  border-left: 6px solid #ffeb3b;
  padding: 12px 16px;
  margin: 18px 0;
}

.example {
  background: var(--example);
  border-radius: 5px;
  padding: 8px 16px 16px;
  margin: 22px 0;
}

.example h3 {
  margin: 10px 0 12px;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  display: inline-block;
  flex-shrink: 0;
  box-shadow: 0 0 0 1px rgba(4, 170, 109, 0.15);
}

.code-wrap {
  position: relative;
  background: #fff;
  border-left: 4px solid var(--code-border);
  padding: 14px 16px 16px;
}

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--green);
  color: #fff;
  border: 0;
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
}

.copy-btn:hover {
  background: var(--green-dark);
}

.copy-btn.copied {
  background: #1d2b36;
}

pre {
  margin: 0;
  padding-right: 72px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 14px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.tag {
  color: #6a1b9a;
}

.attr {
  color: #ff0000;
}

.str {
  color: #0000ff;
}

.kw {
  color: #0000ff;
}

.cm {
  color: #008000;
}

.try-btn {
  display: inline-block;
  margin-top: 12px;
  background: var(--green);
  color: #fff !important;
  padding: 8px 16px;
  border-radius: 5px;
  font-size: 15px;
}

.try-btn:hover {
  background: var(--green-dark);
}

.pager {
  display: flex;
  justify-content: space-between;
  margin: 40px 0 10px;
}

.pager a {
  background: var(--green);
  color: #fff !important;
  padding: 10px 18px;
  border-radius: 5px;
}

.home-hero {
  background: var(--topbar);
  color: #fff;
  text-align: center;
  padding: 56px 20px 40px;
}

.home-hero h1 {
  font-size: 52px;
  font-weight: 400;
  margin: 0 0 8px;
}

.home-hero p {
  font-size: 20px;
  color: #ddd;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  max-width: 1100px;
  margin: -28px auto 48px;
  padding: 0 20px;
}

.card {
  background: #fff;
  border-radius: 5px;
  padding: 28px 16px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  color: #000;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 500;
}

.card p {
  min-height: 48px;
  color: #444;
}

.card a {
  display: inline-block;
  margin-top: 8px;
  background: var(--green);
  color: #fff !important;
  padding: 8px 16px;
  border-radius: 25px;
}

.home-section {
  max-width: 900px;
  margin: 0 auto 48px;
  padding: 0 20px;
}

.footer {
  background: var(--topbar);
  color: #ccc;
  text-align: center;
  padding: 28px 16px;
  font-size: 13px;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: none;
  }

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

  .content {
    padding: 20px 16px 60px;
  }
}