:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #5b6470;
  --border: #e3e6ea;
  --accent: #1f6feb;
  --accent-hover: #1657c2;
  --code-bg: #f5f7fa;
  --hero-bg: linear-gradient(135deg, #f7f9fc 0%, #eef3fb 100%);
  --max-width: 960px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
               "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--fg);
}
.brand:hover { text-decoration: none; }
.brand-icon {
  width: 28px;
  height: 28px;
  display: block;
}
.site-nav { display: flex; align-items: center; gap: 0.25rem; }
.site-nav a {
  color: var(--fg);
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  font-size: 0.95rem;
}
.site-nav a:hover { background: var(--code-bg); text-decoration: none; }
.site-nav a.active { color: var(--accent); }
.site-nav .nav-cta {
  background: var(--accent);
  color: #fff;
  margin-left: 0.5rem;
}
.site-nav .nav-cta:hover { background: var(--accent-hover); }

/* Main */
.site-main {
  padding: 2.5rem 0 3.5rem;
  min-height: 70vh;
}

h1, h2, h3, h4 {
  line-height: 1.25;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }

p, ul, ol { margin: 0 0 1rem; }

code {
  background: var(--code-bg);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}
pre {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 0.9em;
}
pre code { background: transparent; padding: 0; }

blockquote {
  border-left: 3px solid var(--border);
  margin: 1rem 0;
  padding: 0.25rem 1rem;
  color: var(--muted);
}

/* Hero */
.hero {
  background: var(--hero-bg);
  border-radius: 16px;
  padding: 3rem 2rem;
  text-align: center;
  margin-bottom: 2rem;
}
.hero h1 { font-size: 2.5rem; margin-top: 0; }
.hero p.tagline {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 640px;
  margin: 0.5rem auto 1.75rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: 8px;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
}
.btn:hover { background: var(--accent-hover); text-decoration: none; }
.btn.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn.btn-secondary:hover { background: var(--accent); color: #fff; }
.btn-row { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

/* Feature grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}
.feature {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  background: #fff;
}
.feature h3 { margin-top: 0; font-size: 1.05rem; }
.feature p { color: var(--muted); margin-bottom: 0; font-size: 0.95rem; }

/* Workflow steps */
.workflow-steps {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 2rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.workflow-step {
  display: grid;
  grid-template-columns: 56px 1fr 340px;
  gap: 1.5rem;
  align-items: center;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
}
.workflow-step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.workflow-step h3 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
}
.workflow-step p {
  color: var(--muted);
  margin: 0;
}
.workflow-step-illustration {
  width: 100%;
}
.workflow-step-illustration svg {
  width: 100%;
  height: auto;
  display: block;
  background: #fafbfc;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.5rem;
}
@media (max-width: 760px) {
  .workflow-step {
    grid-template-columns: 56px 1fr;
  }
  .workflow-step-illustration {
    grid-column: 2;
    margin-top: 0.5rem;
  }
}

/* Posts */
.post-list { list-style: none; padding: 0; }
.post-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}
.post-list li:last-child { border-bottom: none; }
.post-list h3 { margin: 0 0 0.25rem; }
.post-list .post-meta { color: var(--muted); font-size: 0.9rem; }

.post-header { margin-bottom: 1.5rem; }
.post-header h1 { margin-bottom: 0.25rem; }
.post-meta { color: var(--muted); font-size: 0.95rem; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer a { color: var(--muted); }