/* yonix.sk — dark VSCode-inspired theme */

:root {
  --bg:         #1e1e1e;   /* VSCode editor bg */
  --bg-alt:     #252526;   /* sidebar */
  --bg-deep:    #181818;   /* title bar */
  --panel:      #2d2d30;   /* panels */
  --border:     #3c3c3c;
  --text:       #d4d4d4;   /* default text */
  --text-dim:   #9d9d9d;
  --text-mute:  #6a6a6a;
  --accent:     #569cd6;   /* VSCode keyword blue */
  --accent-2:   #4ec9b0;   /* type green/teal */
  --accent-3:   #c586c0;   /* control purple */
  --string:     #ce9178;
  --num:        #b5cea8;
  --red:        #f48771;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --maxw: 1100px;
  --radius: 6px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(24, 24, 24, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  letter-spacing: .3px;
}
.logo:hover { text-decoration: none; }
.logo-bracket { color: var(--text-mute); }
.logo-dot     { color: var(--accent); }

.main-nav {
  display: flex;
  gap: 22px;
  align-items: center;
}
.main-nav a {
  color: var(--text-dim);
  font-size: 14px;
  font-family: var(--mono);
}
.main-nav a:hover { color: var(--accent); text-decoration: none; }
.lang-switch {
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: var(--radius);
  color: var(--accent) !important;
}
.lang-switch:hover { background: var(--panel); }

/* ---------- Hero ---------- */
.hero {
  padding: 100px 0 80px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 20% 0%, rgba(86,156,214,0.10), transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(78,201,176,0.06), transparent 60%);
}
.kicker {
  font-family: var(--mono);
  color: var(--text-mute);
  margin: 0 0 16px;
  font-size: 14px;
}
.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.1;
  margin: 0 0 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.hero h1 .accent { color: var(--accent); }
.hero .lead {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 680px;
  margin: 0 0 32px;
}
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all .15s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #0a1a2a;
}
.btn-primary:hover {
  background: #6fb3e8;
  text-decoration: none;
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* ---------- Sections ---------- */
.section {
  padding: 90px 0;
  border-bottom: 1px solid var(--border);
}
.section-alt { background: var(--bg-alt); }
.section h2 {
  font-size: clamp(26px, 3vw, 34px);
  margin: 0 0 8px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
.section h2::before {
  content: '# ';
  color: var(--accent);
  font-family: var(--mono);
}
.section-sub {
  color: var(--text-dim);
  margin: 0 0 40px;
  font-size: 16px;
}
.subgroup-h {
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-mute);
  margin: 40px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.subgroup-h:first-of-type { margin-top: 0; }
.subgroup-h::before {
  content: '// ';
  color: var(--accent);
}
.card-extra { padding: 22px 20px; }
.card-extra h3 { font-size: 16px; }
.card-extra p { font-size: 14px; }

/* ---------- Grid & Cards ---------- */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: border-color .15s ease, transform .15s ease;
  position: relative;
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  color: var(--text);
}
.card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 14.5px;
}
.card-num {
  font-family: var(--mono);
  color: var(--text-mute);
  font-size: 12px;
  margin-bottom: 12px;
}
.card-ref h3 { color: var(--accent-2); }

/* ---------- Badges ---------- */
.badges {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.badges li {
  font-family: var(--mono);
  font-size: 13px;
  padding: 7px 13px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
}
.badges li:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 50px;
  align-items: center;
}
.about-grid p { color: var(--text-dim); }
.code-block {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  font-family: var(--mono);
  font-size: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.code-block pre { margin: 0; white-space: pre; overflow-x: auto; color: var(--text); }
.code-block code,
.code-block pre code.hljs {
  background: transparent;
  padding: 0;
  font-family: var(--mono);
  font-size: 14px;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.contact-block h3 {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 24px 0 6px;
}
.contact-block h3:first-child { margin-top: 0; }
.contact-link {
  font-family: var(--mono);
  font-size: 22px;
  color: var(--accent);
}
.email-img {
  vertical-align: middle;
  user-select: none;
  -webkit-user-select: none;
  pointer-events: none;
}
.note {
  margin-top: 20px;
  color: var(--text-mute);
  font-size: 13px;
  font-style: italic;
}
.billing dl {
  font-family: var(--mono);
  font-size: 14px;
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 20px;
}
.billing dt { color: var(--text-mute); }
.billing dd { margin: 0; color: var(--text); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-deep);
  padding: 24px 0;
  text-align: center;
}
.site-footer p {
  margin: 0;
  color: var(--text-mute);
  font-family: var(--mono);
  font-size: 13px;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 30px; }
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 640px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .main-nav { gap: 14px; }
  .main-nav a:not(.lang-switch) { display: none; }
  .hero { padding: 70px 0 60px; }
  .section { padding: 60px 0; }
}