:root {
  --bg: #f6f7f9;
  --sidebar-bg: #11161d;
  --sidebar-fg: #c7d0db;
  --card: #ffffff;
  --text: #1a1f26;
  --muted: #6b7480;
  --border: #e4e7ec;
  --accent: #3b6ef5;
  --accent-ink: #ffffff;
  --code-bg: #0f141a;
  --code-fg: #e6edf3;

  --stable: #16a34a;
  --ot: #d97706;
  --dev: #dc2626;
  --epp: #7c3aed;
  --neutral: #64748b;

  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
}

body { display: flex; }

/* ── Sidebar ───────────────────────────────────────────────── */

.sidebar {
  width: 280px;
  flex-shrink: 0;
  height: 100vh;
  background: var(--sidebar-bg);
  color: var(--sidebar-fg);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-mark { font-size: 26px; }
.brand-name { font-weight: 700; color: #fff; font-size: 15px; }
.brand-sub { font-size: 12px; color: #8b95a3; text-transform: uppercase; letter-spacing: 0.06em; }

#nav { padding: 12px 10px; overflow-y: auto; flex: 1; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 9px;
  color: var(--sidebar-fg);
  text-decoration: none;
  font-size: 14.5px;
  margin-bottom: 2px;
  transition: background 0.12s, color 0.12s;
}
.nav-item:hover { background: rgba(255, 255, 255, 0.06); color: #fff; }
.nav-item.active { background: var(--accent); color: #fff; }

.dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.st-stable { background: var(--stable); }
.st-ot { background: var(--ot); }
.st-dev { background: var(--dev); }
.st-epp { background: var(--epp); }
.st-neutral { background: var(--neutral); }

.sidebar-foot {
  padding: 16px 20px;
  font-size: 12px;
  color: #7d8794;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.cta {
  display: block;
  text-decoration: none;
  background: #1d9e75;
  border-radius: 10px;
  padding: 11px 13px;
  margin-bottom: 12px;
  transition: filter 0.12s;
}
.cta:hover { filter: brightness(1.08); }
.cta-title { display: block; font-weight: 700; font-size: 14px; color: #fff; }
.cta-sub { display: block; font-size: 12px; color: #d7f5ea; margin-top: 2px; }
.foot-note { font-size: 12px; color: #7d8794; }

.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  background: #0f3d2e;
  border: 1px solid #1d9e75;
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 18px;
}
.cta-card-text { flex: 1; min-width: 240px; }
.cta-card h2 { color: #fff; margin: 0 0 4px; }
.cta-card-sub { margin: 0; color: #a7e0cd; font-size: 14px; }
.cta-actions { display: flex; gap: 10px; align-items: center; flex-shrink: 0; }
.btn-primary-link {
  background: #1d9e75;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  padding: 11px 17px;
  border-radius: 9px;
  white-space: nowrap;
}
.btn-primary-link:hover { filter: brightness(1.08); }
.btn-ghost-link { color: #a7e0cd; text-decoration: none; font-size: 14px; white-space: nowrap; }
.btn-ghost-link:hover { color: #fff; }

/* ── Content ───────────────────────────────────────────────── */

.content {
  flex: 1;
  height: 100vh;
  overflow-y: auto;
  padding: 36px 44px 80px;
  max-width: 920px;
}

h1 { font-size: 30px; margin: 0 0 6px; letter-spacing: -0.02em; }
h2 { font-size: 17px; margin: 0 0 14px; }
.lead { font-size: 17px; color: var(--muted); margin: 0 0 18px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 18px;
}
.card p { margin: 0; }

.api-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 6px;
}
.code-inline { color: var(--muted); margin: 0 0 18px; }
code { font-family: var(--mono); font-size: 0.9em; background: rgba(0,0,0,0.05); padding: 1px 6px; border-radius: 5px; }

/* ── Pills ───────────────────────────────────────────────── */

.pill {
  display: inline-flex;
  align-items: center;
  font-size: 12.5px;
  font-weight: 600;
  padding: 5px 11px;
  border-radius: 999px;
  white-space: nowrap;
  color: #fff;
}
.pill.big { font-size: 13px; padding: 7px 14px; }
.pill.st-stable { background: var(--stable); }
.pill.st-ot { background: var(--ot); }
.pill.st-dev { background: var(--dev); }
.pill.st-epp { background: var(--epp); }
.pill.st-neutral { background: var(--neutral); }

.av-ok { background: #dcfce7; color: #15803d; }
.av-dl { background: #fef3c7; color: #92400e; }
.av-no { background: #fee2e2; color: #b91c1c; }
.av-pending { background: #eef0f3; color: #64748b; }

/* ── Check row ───────────────────────────────────────────────── */

.check-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

/* ── Timeline ───────────────────────────────────────────────── */

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li {
  display: flex;
  gap: 14px;
  padding: 9px 0 9px 16px;
  border-left: 2px solid var(--border);
  position: relative;
}
.timeline li::before {
  content: ""; position: absolute; left: -6px; top: 15px;
  width: 10px; height: 10px; border-radius: 50%; background: var(--neutral);
}
.timeline li.tl-now::before { background: var(--stable); }
.timeline li.tl-past::before { background: var(--neutral); }
.timeline li.tl-future::before { background: var(--accent); }
.timeline li.tl-trial::before { background: var(--dev); }
.tl-ver { font-weight: 700; min-width: 130px; }
.tl-label { color: var(--muted); }

/* ── Code ───────────────────────────────────────────────── */

.code-wrap { position: relative; }
pre {
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 16px 18px;
  border-radius: 10px;
  overflow-x: auto;
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
}
pre code { background: none; padding: 0; color: inherit; font-size: inherit; }
.copy { position: absolute; top: 10px; right: 10px; }

/* ── Links ───────────────────────────────────────────────── */

.links { margin: 0; padding-left: 18px; }
.links a, .content a { color: var(--accent); }

/* ── Demo ───────────────────────────────────────────────── */

.field { display: block; margin-bottom: 14px; }
.field-label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.field textarea, .field select {
  width: 100%;
  font-family: var(--font);
  font-size: 14.5px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #fff;
  color: var(--text);
  resize: vertical;
}
.field textarea:focus, .field select:focus { outline: 2px solid var(--accent); border-color: transparent; }

.demo-actions { display: flex; align-items: center; gap: 14px; margin: 6px 0 4px; }
.demo-status { color: var(--muted); font-size: 13.5px; }

.btn {
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 9px;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.primary:disabled { opacity: 0.55; cursor: default; }
.btn.ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn.ghost:hover { background: rgba(0,0,0,0.04); }

.progress { height: 6px; background: var(--border); border-radius: 999px; margin: 12px 0; overflow: hidden; }
.progress-fill { height: 100%; width: 0; background: var(--accent); transition: width 0.2s; }

.demo-output {
  margin-top: 14px;
  background: #0f141a;
  color: #e6edf3;
  white-space: pre-wrap;
  min-height: 48px;
}
.demo-output:empty::before { content: "Wynik pojawi się tutaj…"; color: #5b6673; }
.demo-output.error { background: #2a1416; color: #fca5a5; }

/* ── Misc ───────────────────────────────────────────────── */

.matrix { width: 100%; border-collapse: collapse; }
.matrix th, .matrix td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); font-size: 14px; }
.matrix th { color: var(--muted); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.04em; }

.info-row { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 14.5px; }
.info-row:last-child { border-bottom: none; }
.info-label { color: var(--muted); }
.info-value { font-family: var(--mono); font-size: 13.5px; }

.banner {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 22px;
  padding: 13px 16px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 10px;
  font-size: 14px;
  color: #9a3412;
  line-height: 1.45;
}
.banner code { background: rgba(154, 52, 18, 0.1); }
.banner-x {
  margin-left: auto;
  flex-shrink: 0;
  background: none;
  border: none;
  color: #9a3412;
  font-size: 15px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}
.banner-x:hover { color: #7c2d12; }

.warn { margin-top: 12px; padding: 12px 14px; background: #fef3c7; color: #92400e; border-radius: 9px; font-size: 14px; }
.muted { color: var(--muted); font-size: 13.5px; }

@media (max-width: 720px) {
  body { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; }
  .content { height: auto; padding: 24px; }
}