:root {
  --bg:        #0e0b16;
  --bg2:       #13101f;
  --bg3:       #1a1630;
  --border:    #2d2550;
  --border2:   #3d3470;
  --purple:    #a855f7;
  --purple2:   #c084fc;
  --orange:    #f97316;
  --orange2:   #fb923c;
  --pink:      #ec4899;
  --cyan:      #22d3ee;
  --text:      #e2d9f3;
  --text-dim:  #7c6fa0;
  --code-bg:   #090714;
  --glow-p:    rgba(168,85,247,0.3);
  --glow-o:    rgba(249,115,22,0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  line-height: 1.75;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(168,85,247,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168,85,247,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  top: -200px; right: -200px;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(168,85,247,0.08) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

/* ─── SIDEBAR ─── */
.sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 270px;
  background: linear-gradient(180deg, var(--bg2) 0%, var(--bg) 100%);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  z-index: 100;
  padding-bottom: 60px;
}

.sidebar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--purple), var(--orange));
}

.sidebar-logo {
  padding: 32px 24px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
  position: relative;
}

.logo-img {
  width: 48px; height: 48px;
  border-radius: 10px;
  margin-bottom: 14px;
  display: block;
}

.logo-name {
  font-family: 'Syne', sans-serif;
  font-size: 20px; font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, var(--purple2), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-ver {
  font-size: 11px; color: var(--text-dim);
  letter-spacing: 2px; margin-top: 2px;
  font-family: 'Space Mono', monospace;
}

.sidebar-section {
  padding: 14px 20px 4px;
  font-size: 9px; letter-spacing: 3.5px;
  text-transform: uppercase;
  color: var(--border2);
  font-family: 'Space Mono', monospace;
  margin-top: 4px;
}

.sidebar a {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 20px 6px 24px;
  color: var(--text-dim); text-decoration: none;
  font-size: 12.5px; transition: all 0.15s;
  border-left: 2px solid transparent;
  font-family: 'JetBrains Mono', monospace;
}

.sidebar a .op {
  color: var(--border2); font-size: 10px;
  transition: color 0.15s; min-width: 28px;
}

.sidebar a:hover {
  color: var(--purple2); border-left-color: var(--purple);
  background: rgba(168,85,247,0.05); padding-left: 28px;
}

.sidebar a:hover .op { color: var(--orange); }
.sidebar a.active { color: var(--purple2); border-left-color: var(--purple); background: rgba(168,85,247,0.07); }
.sidebar a.active .op { color: var(--orange); }

/* ─── MAIN ─── */
.main {
  margin-left: 270px;
  padding: 0 64px 100px;
  max-width: 1020px;
  position: relative; z-index: 1;
}

/* ─── HERO ─── */
.hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 72px; position: relative;
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(168,85,247,0.08);
  border: 1px solid rgba(168,85,247,0.2);
  color: var(--purple2);
  font-family: 'Space Mono', monospace;
  font-size: 10px; letter-spacing: 3px;
  padding: 6px 14px; border-radius: 2px;
  margin-bottom: 28px; text-transform: uppercase;
}

.hero-eyebrow::before {
  content: ''; width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--purple);
  box-shadow: 0 0 8px var(--purple);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-family: 'Syne', sans-serif;
  font-size: 68px; font-weight: 800;
  line-height: 1; letter-spacing: -2px; margin-bottom: 20px;
}

.hero h1 .h { background: linear-gradient(135deg, #c084fc, #a855f7); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero h1 .l { background: linear-gradient(135deg, var(--orange), var(--orange2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.hero-desc {
  font-size: 15px; color: var(--text-dim);
  max-width: 540px; margin-bottom: 36px;
  line-height: 1.8;
}

.hero-tags { display: flex; gap: 8px; flex-wrap: wrap; }

.tag {
  font-family: 'Space Mono', monospace;
  font-size: 10px; padding: 4px 12px;
  border-radius: 2px; letter-spacing: 1px; text-transform: uppercase;
}

.tag-p  { background: rgba(168,85,247,0.1); border: 1px solid rgba(168,85,247,0.25); color: var(--purple2); }
.tag-o  { background: rgba(249,115,22,0.1); border: 1px solid rgba(249,115,22,0.25); color: var(--orange2); }
.tag-c  { background: rgba(34,211,238,0.08); border: 1px solid rgba(34,211,238,0.2); color: var(--cyan); }
.tag-pk { background: rgba(236,72,153,0.08); border: 1px solid rgba(236,72,153,0.2); color: var(--pink); }

/* ─── SECTION ─── */
section { margin-bottom: 80px; scroll-margin-top: 24px; }

.section-header {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 32px; padding-bottom: 16px;
  border-bottom: 1px solid var(--border); position: relative;
}

.section-header::after {
  content: ''; position: absolute;
  bottom: -1px; left: 0;
  width: 60px; height: 1px;
  background: linear-gradient(90deg, var(--purple), transparent);
}

.section-num {
  font-family: 'Space Mono', monospace;
  font-size: 10px; color: var(--orange); opacity: 0.7; min-width: 28px;
}

h2 {
  font-family: 'Syne', sans-serif;
  font-size: 26px; font-weight: 700;
  color: var(--text); letter-spacing: -0.3px;
}

h2 code {
  font-family: 'Space Mono', monospace;
  font-size: 20px; background: none; border: none;
  color: var(--orange); padding: 0;
}

h3 {
  font-family: 'Syne', sans-serif;
  font-size: 16px; font-weight: 600;
  color: var(--purple2); margin: 32px 0 14px; letter-spacing: 0.3px;
}

p { margin-bottom: 14px; color: var(--text); line-height: 1.8; }

/* ─── CODE BLOCKS ─── */
.code-block {
  background: var(--code-bg); border: 1px solid var(--border);
  border-radius: 6px; margin: 20px 0; overflow: hidden; position: relative;
}

.code-block::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, var(--purple), var(--orange), transparent);
  opacity: 0.5;
}

.code-header {
  background: rgba(168,85,247,0.04);
  border-bottom: 1px solid var(--border);
  padding: 9px 18px;
  font-family: 'Space Mono', monospace;
  font-size: 10px; color: var(--text-dim);
  letter-spacing: 2px;
  display: flex; align-items: center; gap: 10px;
  text-transform: uppercase;
}

.code-dots { display: flex; gap: 5px; }
.code-dots span { width: 8px; height: 8px; border-radius: 50%; }
.code-dots .d1 { background: #ff5f57; }
.code-dots .d2 { background: #ffbd2e; }
.code-dots .d3 { background: #28ca41; }

pre {
  padding: 22px; overflow-x: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; line-height: 1.9;
}

code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  background: rgba(168,85,247,0.1);
  border: 1px solid rgba(168,85,247,0.15);
  padding: 2px 7px; border-radius: 3px; color: var(--purple2);
}

/* ─── SYNTAX HIGHLIGHT ─── */
.hl-comment  { color: #3d3460; font-style: italic; }
.hl-doc      { color: #4a3d6a; font-style: italic; }
.hl-print    { color: #34d399; }
.hl-cmd      { color: #60a5fa; }
.hl-sudo     { color: var(--orange); }
.hl-iso      { color: var(--pink); }
.hl-var-decl { color: #fbbf24; }
.hl-var-ref  { color: #fcd34d; font-style: italic; }
.hl-func     { color: var(--purple2); font-weight: 700; }
.hl-logic    { color: #c084fc; }
.hl-done     { color: #9d4edd; }
.hl-dep      { color: var(--cyan); }
.hl-import   { color: #67e8f9; }
.hl-string   { color: #86efac; }
.hl-kw       { color: #d8b4fe; font-weight: 600; }
.hl-quick    { color: var(--pink); font-weight: 600; }
.hl-export   { color: #fb923c; font-weight: 600; }
.hl-shebang  { color: #4a3d6a; font-style: italic; }
.hl-gen      { color: #d8b4fe; font-style: italic; }
/* Nowe operatory gen 1 */
.hl-bg       { color: #22d3ee; font-weight: 700; }         /* & background */
.hl-hsh      { color: #fbbf24; font-weight: 700; }         /* *> hsh */
.hl-repeat   { color: #f97316; font-weight: 700; }         /* _N */
.hl-goroutine { color: #c084fc; font-weight: 700; }        /* :* */
.hl-channel  { color: #a855f7; font-weight: 700; }         /* :** */
.hl-chanop   { color: #9d4edd; font-weight: 700; }         /* *-- */

/* ─── REFERENCE TABLE ─── */
.ref-table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 13px; }

.ref-table th {
  background: rgba(168,85,247,0.06);
  border: 1px solid var(--border);
  padding: 10px 18px; text-align: left;
  font-family: 'Space Mono', monospace;
  font-size: 10px; letter-spacing: 2px;
  color: var(--orange); font-weight: 400; text-transform: uppercase;
}

.ref-table td { border: 1px solid var(--border); padding: 10px 18px; vertical-align: top; }
.ref-table tr:hover td { background: rgba(168,85,247,0.03); }
.ref-table td:first-child { font-family: 'Space Mono', monospace; color: var(--purple2); white-space: nowrap; font-size: 12px; }
.ref-table td:nth-child(2) { color: var(--text-dim); font-size: 13px; }
.ref-table td:last-child   { color: var(--text); font-size: 13px; }

/* ─── COMMAND CARDS ─── */
.cmd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 20px 0; }

.cmd-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 6px; padding: 18px 20px;
  transition: border-color 0.2s, box-shadow 0.2s;
  position: relative; overflow: hidden;
}

.cmd-card::before {
  content: ''; position: absolute;
  top: 0; left: 0; width: 3px; height: 100%;
  background: var(--purple); opacity: 0; transition: opacity 0.2s;
}

.cmd-card:hover { border-color: rgba(168,85,247,0.35); box-shadow: 0 0 24px rgba(168,85,247,0.08); }
.cmd-card:hover::before { opacity: 1; }
.cmd-card.sudo-card:hover { border-color: rgba(249,115,22,0.35); }
.cmd-card.sudo-card::before { background: var(--orange); }
.cmd-card.iso-card:hover { border-color: rgba(236,72,153,0.35); }
.cmd-card.iso-card::before { background: var(--pink); }

.cmd-card .op {
  font-family: 'Space Mono', monospace;
  font-size: 15px; color: var(--purple2);
  margin-bottom: 8px; display: block;
}

.cmd-card .op.sudo  { color: var(--orange); }
.cmd-card .op.iso   { color: var(--pink); }
.cmd-card p { font-size: 12.5px; color: var(--text-dim); margin: 0; line-height: 1.6; }

/* ─── QUICK FUNCTIONS GRID ─── */
.quick-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin: 16px 0; }

.quick-item {
  background: rgba(236,72,153,0.05);
  border: 1px solid rgba(236,72,153,0.15);
  border-radius: 4px; padding: 10px 14px;
  font-family: 'Space Mono', monospace; font-size: 11.5px;
}

.quick-item .fn { color: var(--pink); display: block; margin-bottom: 2px; }
.quick-item .desc { color: var(--text-dim); font-size: 10.5px; }

/* ─── CALLOUT ─── */
.callout {
  display: flex; gap: 14px;
  background: rgba(249,115,22,0.06);
  border: 1px solid rgba(249,115,22,0.2);
  border-radius: 4px; padding: 16px 18px; margin: 20px 0;
}

.callout-icon { font-size: 18px; flex-shrink: 0; line-height: 1.6; }
.callout-body { font-size: 13px; color: var(--text); }
.callout-body strong { color: var(--orange); }

.callout.info { background: rgba(168,85,247,0.06); border-color: rgba(168,85,247,0.2); }
.callout.info .callout-body strong { color: var(--purple2); }
.callout.note { background: rgba(34,211,238,0.05); border-color: rgba(34,211,238,0.15); }
.callout.note .callout-body strong { color: var(--cyan); }

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--purple); }

/* ─── RESPONSIVE ─── */
@media (max-width: 960px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 24px 24px 80px; }
  .cmd-grid, .quick-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 42px; }
}

/* Gen 2 operators */
.hl-arith    { color: #fbbf24; font-weight: 700; }         /* $() arytmetyka */
.hl-pipe     { color: #22d3ee; font-weight: 700; }         /* |> pipe do var */
.hl-forin    { color: #f97316; font-weight: 700; }         /* @ item in */
.hl-while    { color: #a855f7; font-weight: 700; }         /* ?~ while */
.hl-hackeros { color: #ec4899; font-weight: 700; }         /* || HackerOS API */