/* ===========================================================
   Avazbek Isabaev — personal site / blog
   Design system & shared styles
   =========================================================== */

:root {
  --bg:            #0b0f17;
  --bg-soft:       #111722;
  --bg-card:       #131a26;
  --bg-elev:       #18202e;
  --line:          #1f2937;
  --line-soft:     #1a2230;
  --text:          #e6edf3;
  --text-soft:     #9fb0c3;
  --text-dim:      #6b7c91;
  --accent:        #34d399;   /* emerald */
  --accent-2:      #38bdf8;   /* sky */
  --accent-3:      #a78bfa;   /* violet */
  --warn:          #fbbf24;
  --radius:        14px;
  --radius-sm:     9px;
  --maxw:          980px;
  --mono: "SFMono-Regular", ui-monospace, "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(56,189,248,0.08), transparent 60%),
    radial-gradient(700px 500px at 0% 0%, rgba(52,211,153,0.07), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(11,15,23,0.72);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand {
  font-family: var(--mono); font-weight: 600; font-size: 15px;
  color: var(--text); display: inline-flex; align-items: center; gap: 9px;
}
.brand:hover { text-decoration: none; }
.brand .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 4px rgba(52,211,153,0.15); animation: pulse 2.6s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.45} }
.nav-links { display: flex; gap: 22px; font-size: 14px; }
.nav-links a { color: var(--text-soft); }
.nav-links a:hover { color: var(--text); text-decoration: none; }
@media (max-width: 640px){ .nav-links { gap: 14px; font-size: 13px; } .nav-links .opt { display:none; } }

/* ---------- Hero ---------- */
.hero { padding: 78px 0 54px; }
.eyebrow {
  font-family: var(--mono); font-size: 13px; color: var(--accent);
  letter-spacing: .04em; margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(34px, 6vw, 56px); line-height: 1.05; margin: 0 0 14px;
  font-weight: 800; letter-spacing: -0.02em;
}
.hero .role { font-size: clamp(17px, 3vw, 22px); color: var(--text-soft); margin: 0 0 22px; font-weight: 500; }
.hero .lead { font-size: 17px; color: var(--text-soft); max-width: 680px; margin: 0 0 28px; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600;
  border: 1px solid var(--line); color: var(--text); background: var(--bg-card);
  transition: transform .15s ease, border-color .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-2px); text-decoration: none; border-color: #2b3a50; }
.btn.primary { background: linear-gradient(180deg, var(--accent), #16a34a); color: #052012; border-color: transparent; }
.btn.primary:hover { box-shadow: 0 10px 30px -10px rgba(52,211,153,.5); }

/* ---------- terminal card ---------- */
.term {
  margin-top: 40px; border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, #0e141f, #0b1019); overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(0,0,0,.7);
}
.term-bar { display: flex; align-items: center; gap: 8px; padding: 11px 14px; border-bottom: 1px solid var(--line-soft); background: #0c121c; }
.term-bar i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.term-bar .r{background:#ff5f57} .term-bar .y{background:#febc2e} .term-bar .g{background:#28c840}
.term-bar span { margin-left: 8px; font-family: var(--mono); font-size: 12px; color: var(--text-dim); }
.term-body { padding: 18px 18px 20px; font-family: var(--mono); font-size: 13.5px; line-height: 1.85; }
.term-body .pr { color: var(--accent); }
.term-body .cm { color: var(--text-dim); }
.term-body .ky { color: var(--accent-2); }
.term-body .st { color: var(--warn); }
.term-body .out { color: var(--text-soft); }

/* ---------- Sections ---------- */
section { padding: 56px 0; border-top: 1px solid var(--line-soft); }
.sec-head { display:flex; align-items:baseline; gap:14px; margin-bottom: 30px; }
.sec-head h2 { font-size: 26px; margin: 0; letter-spacing: -.01em; }
.sec-head .idx { font-family: var(--mono); font-size: 13px; color: var(--accent); }
.sec-sub { color: var(--text-soft); margin: -18px 0 30px; }

/* ---------- Skills ---------- */
.skills { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
@media (max-width: 720px){ .skills { grid-template-columns: 1fr; } }
.skill {
  border: 1px solid var(--line); background: var(--bg-card); border-radius: var(--radius);
  padding: 18px 18px 16px; transition: border-color .2s, transform .2s;
}
.skill:hover { border-color: #2b3a50; transform: translateY(-2px); }
.skill h3 { margin: 0 0 12px; font-size: 14px; font-family: var(--mono); color: var(--accent-2); font-weight: 600; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; }
.tag {
  font-size: 12.5px; padding: 4px 10px; border-radius: 999px;
  background: var(--bg-elev); border: 1px solid var(--line); color: var(--text-soft);
}

/* ---------- Timeline ---------- */
.timeline { position: relative; margin-left: 6px; }
.timeline::before { content:""; position:absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--accent), transparent); }
.job { position: relative; padding: 0 0 30px 34px; }
.job::before {
  content:""; position:absolute; left: 0; top: 6px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
}
.job.current::before { box-shadow: 0 0 0 5px rgba(52,211,153,.16); }
.job .when { font-family: var(--mono); font-size: 12.5px; color: var(--text-dim); }
.job h3 { margin: 4px 0 2px; font-size: 18px; }
.job .org { color: var(--accent-2); font-size: 14.5px; margin-bottom: 8px; }
.job ul { margin: 8px 0 0; padding-left: 18px; color: var(--text-soft); }
.job ul li { margin-bottom: 5px; }

/* ---------- Blog cards ---------- */
.posts { display: grid; gap: 16px; }
.post-card {
  display: block; border: 1px solid var(--line); background: var(--bg-card); border-radius: var(--radius);
  padding: 22px 22px; transition: border-color .2s, transform .2s, background .2s;
}
.post-card:hover { border-color: #2b3a50; transform: translateY(-3px); background: var(--bg-elev); text-decoration: none; }
.post-card .meta { font-family: var(--mono); font-size: 12.5px; color: var(--text-dim); display:flex; gap:12px; flex-wrap:wrap; }
.post-card h3 { margin: 8px 0 8px; font-size: 20px; color: var(--text); }
.post-card p { margin: 0; color: var(--text-soft); }
.post-card .more { display:inline-block; margin-top: 14px; color: var(--accent); font-size: 14px; font-weight: 600; }

/* ---------- Contact ---------- */
.contact-grid { display:grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
@media (max-width:640px){ .contact-grid { grid-template-columns: 1fr; } }
.contact-card {
  display:flex; align-items:center; gap:14px; border:1px solid var(--line); background: var(--bg-card);
  border-radius: var(--radius); padding: 16px 18px; transition: border-color .2s, transform .2s;
}
.contact-card:hover { border-color:#2b3a50; transform: translateY(-2px); text-decoration:none; }
.contact-card .ic { width:40px; height:40px; flex:none; display:grid; place-items:center; border-radius:10px; background: var(--bg-elev); border:1px solid var(--line); font-size:18px; }
.contact-card .lbl { font-size:12.5px; color: var(--text-dim); font-family: var(--mono); }
.contact-card .val { font-size:15px; color: var(--text); }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line-soft); padding: 32px 0 48px; color: var(--text-dim); font-size: 13.5px; }
footer .wrap { display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; align-items:center; }
footer .mono { font-family: var(--mono); }

/* ---------- Article ---------- */
.article { padding: 56px 0 30px; }
.article-head .meta { font-family: var(--mono); font-size: 13px; color: var(--text-dim); display:flex; gap:14px; flex-wrap:wrap; margin-bottom:14px; }
.article-head h1 { font-size: clamp(28px, 5vw, 40px); line-height:1.12; margin: 0 0 14px; letter-spacing:-.02em; }
.article-head .desc { color: var(--text-soft); font-size: 18px; margin: 0; }
.back { font-family: var(--mono); font-size:13px; color: var(--text-soft); display:inline-flex; gap:7px; align-items:center; margin-bottom: 8px; }
.prose { font-size: 17px; line-height: 1.8; color: var(--text); max-width: 720px; }
.prose h2 { font-size: 23px; margin: 38px 0 14px; letter-spacing:-.01em; }
.prose h3 { font-size: 18px; margin: 28px 0 10px; color: var(--accent-2); }
.prose p { color: #cdd9e5; margin: 0 0 16px; }
.prose ul, .prose ol { color:#cdd9e5; padding-left: 22px; margin: 0 0 16px; }
.prose li { margin-bottom: 7px; }
.prose strong { color: var(--text); }
.prose blockquote { margin: 20px 0; padding: 12px 18px; border-left: 3px solid var(--accent); background: var(--bg-card); border-radius: 0 8px 8px 0; color: var(--text-soft); }
.prose code { font-family: var(--mono); font-size: 14px; background: var(--bg-elev); border:1px solid var(--line); padding: 2px 6px; border-radius: 6px; color: #e6c07b; }
.prose pre { background: #0c121c; border:1px solid var(--line); border-radius: 12px; padding: 16px 18px; overflow-x:auto; margin: 0 0 18px; }
.prose pre code { background: none; border:none; padding:0; color: #c8d3df; font-size:13.5px; line-height:1.7; }
.tagline { display:flex; gap:8px; flex-wrap:wrap; margin: 20px 0 8px; }

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

::selection { background: rgba(52,211,153,.3); }