/* ===================================================================
 * INCY — Terminal / Developer-First Design System
 *
 * One source of truth for incy-index.html, roadmap.html,
 * incy-privacy.html, incy-terms.html, incy-licenses.html.
 *
 * Design rules:
 *   - Monospace everywhere; Inter only for long-form prose in legal docs.
 *   - Sharp corners (no glass, no rounded blobs). Lines, not surfaces.
 *   - Mint = success signal, not decoration. White on black is the base.
 *   - No backdrop-filter, no mesh-gradients, no animated ambient.
 *   - Panels look like terminal/IDE windows with a label tab on top.
 * =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
  /* ─── Surfaces ────────────────────────────────────────────────── */
  --bg:               #0A0A0A;
  --bg-elev-1:        #111111;
  --bg-elev-2:        #161616;
  --bg-panel:         #0D0D0D;
  --bg-panel-head:    #1A1A1A;
  --bg-stripe:        #0F0F0F;     /* zebra rows in tables */

  /* ─── Borders — hairlines, not glass ──────────────────────────── */
  --border:           #1F1F1F;
  --border-dim:       #161616;
  --border-strong:    #2A2A2A;
  --border-mint:      rgba(0, 229, 160, 0.30);

  /* ─── Brand — mint as success signal ──────────────────────────── */
  --mint:             #00E5A0;
  --mint-dim:         #00A878;
  --mint-bright:      #4DFFC2;
  --mint-deep:        #00735A;
  --mint-tint:        rgba(0, 229, 160, 0.06);
  --mint-tint-strong: rgba(0, 229, 160, 0.12);

  /* ─── Semantic codes ──────────────────────────────────────────── */
  --info:             #5EA3FF;
  --warn:             #FBBF24;
  --err:              #F87171;
  --ok:               #00E5A0;
  --muted:            #6B7280;

  /* ─── Text ────────────────────────────────────────────────────── */
  --text:             #E6E6E6;
  --text-secondary:   #A1A1A1;
  --text-muted:       #6B6B6B;
  --text-faint:       #444444;
  --text-cmt:         #4B5563;       /* like a // comment */

  /* ─── Typography ──────────────────────────────────────────────── */
  --font-mono:        'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --font-sans:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* ─── Layout ──────────────────────────────────────────────────── */
  --container:        1240px;
  --container-narrow: 920px;
  --gutter:           24px;
  --gutter-mobile:    16px;
  --header-h:         52px;

  /* ─── Motion ──────────────────────────────────────────────────── */
  --d-fast:           120ms;
  --d:                200ms;
  --d-slow:           360ms;
  --ease:             cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ===================================================================
 * Reset
 * =================================================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-mono);
  font-feature-settings: 'cv11', 'ss01';
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.55;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--d-fast) var(--ease);
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

::selection {
  background: var(--mint);
  color: #000;
}

/* Faint repeating-line backdrop — like a printed terminal */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image: repeating-linear-gradient(
    180deg,
    transparent 0,
    transparent 23px,
    rgba(255, 255, 255, 0.012) 24px
  );
}

/* ===================================================================
 * Containers
 * =================================================================== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.container-narrow { max-width: var(--container-narrow); }

@media (max-width: 640px) {
  .container,
  .container-narrow {
    padding: 0 var(--gutter-mobile);
  }
}

/* ===================================================================
 * Top bar — fake terminal title strip
 *
 * Layout:
 *   ╔═══════════════════════════════════════════════════════════╗
 *   ║ ● ● ●   incy ~ /privacy            [RU] [EN]   [download] ║
 *   ╚═══════════════════════════════════════════════════════════╝
 *
 * It's a single horizontal strip — left = "window dots" + path,
 * center = nav, right = lang switcher + CTA.
 * =================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-panel-head);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
}

.site-header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: var(--header-h);
  padding: 0 18px;
  font-size: 12.5px;
}

.win-dots {
  display: inline-flex;
  gap: 7px;
  margin-right: 14px;
}
.win-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #333;
}
.win-dots span:nth-child(1) { background: #FF5F57; }
.win-dots span:nth-child(2) { background: #FEBC2E; }
.win-dots span:nth-child(3) { background: #28C840; }

.brand-path {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}
.brand-path .at      { color: var(--mint); }
.brand-path .host    { color: var(--text); }
.brand-path .sep     { color: var(--text-muted); margin: 0 2px; }
.brand-path .path    { color: var(--text-secondary); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
  font-size: 12.5px;
}
.site-nav a {
  color: var(--text-secondary);
  position: relative;
}
.site-nav a::before {
  content: '--';
  color: var(--text-faint);
  margin-right: 4px;
}
.site-nav a:hover { color: var(--mint); }

.site-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Language switcher — flag pair */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}
.lang-switcher::before {
  content: '--lang=';
  color: var(--text-faint);
  margin-right: 2px;
}
.lang-btn {
  padding: 2px 6px;
  border: none;
  background: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: inherit;
  text-transform: lowercase;
  cursor: pointer;
  transition: color var(--d-fast) var(--ease);
}
.lang-btn:hover  { color: var(--text); }
.lang-btn.active { color: var(--mint); font-weight: 600; }
.lang-btn + .lang-btn::before {
  content: '|';
  color: var(--text-faint);
  margin-right: 4px;
}

@media (max-width: 900px) {
  .site-nav { display: none; }
  .site-header-inner { gap: 12px; }
  .lang-switcher::before { content: ''; margin: 0; }
}
@media (max-width: 480px) {
  .brand-path .path { display: none; }
  .win-dots { margin-right: 8px; }
  .site-header-inner { padding: 0 12px; }
}

/* ===================================================================
 * Buttons — square, sharp, monospace
 * =================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 0;
  cursor: pointer;
  transition: background var(--d-fast) var(--ease),
              border-color var(--d-fast) var(--ease),
              color var(--d-fast) var(--ease);
  white-space: nowrap;
}
.btn::before { content: '['; color: var(--text-muted); }
.btn::after  { content: ']'; color: var(--text-muted); }
.btn:hover {
  border-color: var(--mint);
  color: var(--mint);
}
.btn:hover::before, .btn:hover::after { color: var(--mint); }

.btn-primary {
  border-color: var(--mint);
  color: var(--mint);
  background: var(--mint-tint);
}
.btn-primary:hover {
  background: var(--mint);
  color: #00150E;
}
.btn-primary:hover::before, .btn-primary:hover::after { color: #00150E; }

.btn-lg { padding: 11px 18px; font-size: 13px; }
.btn-sm { padding: 5px 10px; font-size: 11.5px; }

/* ===================================================================
 * Typography
 * =================================================================== */
h1, h2, h3, h4 {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.15;
}

h1 {
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
}

h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
}

p {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
}

/* Long-form prose in legal docs uses Inter for readability */
.prose, .prose p, .prose li {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-secondary);
}
.prose h2, .prose h3 { font-family: var(--font-mono); }

code, kbd, .mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
}
code {
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  padding: 1px 6px;
  color: var(--mint);
}

.tok-mint { color: var(--mint); }
.tok-dim  { color: var(--text-muted); }
.tok-cmt  { color: var(--text-cmt); }

.comment-line {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-cmt);
}
.comment-line::before { content: '// '; color: var(--text-faint); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: lowercase;
  color: var(--mint);
}
.eyebrow::before {
  content: '>_';
  color: var(--mint);
  font-weight: 700;
}

/* ===================================================================
 * Panel — core surface primitive (replaces .glass-card)
 * =================================================================== */
.panel {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 0;
  transition: border-color var(--d) var(--ease),
              background var(--d) var(--ease);
}
.panel:hover {
  border-color: var(--border-strong);
}

.panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: var(--bg-panel-head);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--text-muted);
}
.panel-head .pip {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: var(--mint);
  box-shadow: 0 0 6px var(--mint);
}
.panel-head .label  { color: var(--text); }
.panel-head .meta   { margin-left: auto; color: var(--text-faint); }

.panel-body {
  padding: 20px 22px;
}
.panel-body > * + * { margin-top: 12px; }

.panel.is-mint  { border-color: var(--border-mint); }
.panel.is-mint .panel-head { border-bottom-color: var(--border-mint); }
.panel.is-warn  { border-color: rgba(251, 191, 36, 0.35); }
.panel.is-warn .panel-head { border-bottom-color: rgba(251, 191, 36, 0.35); color: var(--warn); }
.panel.is-err   { border-color: rgba(248, 113, 113, 0.35); }
.panel.is-err  .panel-head { border-bottom-color: rgba(248, 113, 113, 0.35); color: var(--err); }
.panel.is-info  { border-color: rgba(94, 163, 255, 0.35); }
.panel.is-info .panel-head { border-bottom-color: rgba(94, 163, 255, 0.35); color: var(--info); }

/* ===================================================================
 * Sections
 * =================================================================== */
section { position: relative; }

.section { padding: 72px 0; }
.section-tight { padding: 48px 0; }
.section-loose { padding: 110px 0; }
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-tight { padding: 40px 0; }
  .section-loose { padding: 72px 0; }
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 40px;
  max-width: 760px;
}
.section-head p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* ===================================================================
 * Grid
 * =================================================================== */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Tight-grid panels share borders (0 gap) */
.grid.tight-grid { gap: 0; }
.grid.tight-grid > .panel {
  border-right-width: 0;
  border-bottom-width: 0;
}
.grid.tight-grid > .panel:last-child { border-right-width: 1px; }
.grid.tight-grid {
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ===================================================================
 * Tags / pills / badges
 * =================================================================== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 7px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev-1);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: lowercase;
  border-radius: 0;
}
.tag-mint { border-color: var(--border-mint); color: var(--mint); background: var(--mint-tint); }
.tag-warn { border-color: rgba(251, 191, 36, 0.30); color: var(--warn); background: rgba(251, 191, 36, 0.06); }
.tag-err  { border-color: rgba(248, 113, 113, 0.30); color: var(--err);  background: rgba(248, 113, 113, 0.06); }
.tag-info { border-color: rgba(94, 163, 255, 0.30);  color: var(--info); background: rgba(94, 163, 255, 0.06); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev-1);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}
.badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: currentColor;
  display: inline-block;
}
.badge.is-ok   { color: var(--mint); border-color: var(--border-mint); }
.badge.is-go   { color: var(--info); border-color: rgba(94, 163, 255, 0.30); }
.badge.is-plan { color: var(--warn); border-color: rgba(251, 191, 36, 0.30); }
.badge.is-next { color: #F472B6;     border-color: rgba(236, 72, 153, 0.30); }

/* ===================================================================
 * Lists
 * =================================================================== */
ul.bullets {
  list-style: none;
  margin: 12px 0;
}
ul.bullets li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 6px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 13.5px;
}
ul.bullets li::before {
  content: '▸';
  position: absolute;
  left: 4px;
  top: 0;
  color: var(--mint);
}

ol.numbered {
  list-style: none;
  counter-reset: n;
  margin: 12px 0;
}
ol.numbered > li {
  counter-increment: n;
  position: relative;
  padding-left: 56px;
  margin-bottom: 12px;
  color: var(--text-secondary);
}
ol.numbered > li::before {
  content: '[' counter(n, decimal-leading-zero) ']';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--mint);
  font-family: var(--font-mono);
  font-weight: 600;
}

/* ===================================================================
 * Inline note blocks
 * =================================================================== */
.note {
  position: relative;
  padding: 14px 18px;
  margin: 16px 0;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}
.note .note-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text);
}
.note .note-head::before {
  content: '##';
  color: var(--text-faint);
}
.note-info  { border-color: rgba(94, 163, 255, 0.30); }
.note-info  .note-head { color: var(--info); }
.note-warn  { border-color: rgba(251, 191, 36, 0.30); }
.note-warn  .note-head { color: var(--warn); }
.note-err   { border-color: rgba(248, 113, 113, 0.30); }
.note-err   .note-head { color: var(--err); }
.note-ok    { border-color: var(--border-mint); background: var(--mint-tint); }
.note-ok    .note-head { color: var(--mint); }

/* ===================================================================
 * Footer
 * =================================================================== */
.site-footer {
  position: relative;
  margin-top: 80px;
  padding: 28px 0 32px;
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  font-family: var(--font-mono);
  font-size: 12px;
}
.site-footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  align-items: center;
  justify-content: space-between;
}
.site-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.site-footer-links a {
  color: var(--text-muted);
  transition: color var(--d-fast) var(--ease);
}
.site-footer-links a::before {
  content: './';
  color: var(--text-faint);
  margin-right: 1px;
}
.site-footer-links a:hover { color: var(--mint); }

.site-footer-copy {
  width: 100%;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  font-size: 11.5px;
  color: var(--text-faint);
}
.site-footer-copy .tok-mint { color: var(--mint); }

/* ===================================================================
 * Reveal
 * =================================================================== */
.fade-up {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.fade-up.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
  .fade-up { opacity: 1; transform: none; }
}

/* ===================================================================
 * Caret — blinking prompt cursor
 * =================================================================== */
.caret {
  display: inline-block;
  width: 0.55em;
  height: 1em;
  background: var(--mint);
  vertical-align: -0.12em;
  margin-left: 2px;
  animation: caret-blink 1.05s steps(1, end) infinite;
}
@keyframes caret-blink {
  50% { opacity: 0; }
}

/* ===================================================================
 * Language toggling (legacy markup)
 * =================================================================== */
[lang="en"] { display: none; }
[lang="ru"] { display: block; }
body.lang-en [lang="en"] { display: block; }
body.lang-en [lang="ru"] { display: none; }

span[lang="en"], strong[lang="en"], small[lang="en"], em[lang="en"] { display: none; }
span[lang="ru"], strong[lang="ru"], small[lang="ru"], em[lang="ru"] { display: inline; }
body.lang-en span[lang="en"], body.lang-en strong[lang="en"],
body.lang-en small[lang="en"], body.lang-en em[lang="en"] { display: inline; }
body.lang-en span[lang="ru"], body.lang-en strong[lang="ru"],
body.lang-en small[lang="ru"], body.lang-en em[lang="ru"] { display: none; }

li[lang="en"] { display: none; }
li[lang="ru"] { display: list-item; }
body.lang-en li[lang="en"] { display: list-item; }
body.lang-en li[lang="ru"] { display: none; }

p[lang="en"] { display: none; }
p[lang="ru"] { display: block; }
body.lang-en p[lang="en"] { display: block; }
body.lang-en p[lang="ru"] { display: none; }

div[lang="en"] { display: none; }
div[lang="ru"] { display: block; }
body.lang-en div[lang="en"] { display: block; }
body.lang-en div[lang="ru"] { display: none; }

th[lang="en"], td[lang="en"] { display: none; }
th[lang="ru"], td[lang="ru"] { display: table-cell; }
body.lang-en th[lang="en"], body.lang-en td[lang="en"] { display: table-cell; }
body.lang-en th[lang="ru"], body.lang-en td[lang="ru"] { display: none; }

/* ===================================================================
 * Scrollbar
 * =================================================================== */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: var(--mint-dim); }

/* ===================================================================
 * Focus
 * =================================================================== */
:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}