/* juniordev.ai — shared design system */
:root {
  --bg: #0a0a0f;
  --bg-soft: #12121a;
  --bg-soft-2: #181822;
  --fg: #e7e7ef;
  --muted: #9a9aae;
  --muted-2: #6e6e84;
  --accent: #6d8bff;
  --accent-2: #00d4a0;
  --danger: #ff6d8b;
  --border: #23232f;
  --radius: 14px;
  --max: 1080px;
  --shadow: 0 6px 24px rgba(109, 139, 255, .25);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }

/* ---------- header / nav ---------- */
header.site {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(10, 10, 15, .72);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { font-weight: 700; letter-spacing: -.02em; font-size: 1.15rem; white-space: nowrap; }
.brand span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--muted); font-size: .95rem; transition: color .12s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--fg); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--fg);
  border-radius: 8px; padding: 6px 10px; font-size: 1.1rem; cursor: pointer; }

/* ---------- buttons ---------- */
.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; font-weight: 600;
  font-size: .95rem; cursor: pointer; border: 1px solid transparent;
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #07070b; box-shadow: var(--shadow); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { border-color: var(--border); color: var(--fg); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); }
.btn-sm { padding: 8px 16px; font-size: .9rem; }
.btn-lg { padding: 15px 30px; font-size: 1.05rem; }

/* ---------- hero ---------- */
.hero { padding: 92px 0 64px; text-align: center; }
.pill { display: inline-block; font-size: .8rem; color: var(--accent-2);
  border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; margin-bottom: 26px; letter-spacing: .02em; }
h1 { font-size: clamp(2.2rem, 6vw, 4rem); line-height: 1.05; letter-spacing: -.03em; font-weight: 800; }
.hero h1 { max-width: 17ch; margin: 0 auto 22px; }
.grad { background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: clamp(1.05rem, 2.2vw, 1.28rem); color: var(--muted); max-width: 58ch; margin: 0 auto 34px; }
.actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.microcopy { color: var(--muted-2); font-size: .85rem; margin-top: 16px; }

/* ---------- sections ---------- */
section.block { padding: 64px 0; border-top: 1px solid var(--border); }
.eyebrow { color: var(--accent); font-weight: 700; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; text-align: center; margin-bottom: 10px; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.3rem); letter-spacing: -.02em; }
.block h2 { text-align: center; margin-bottom: 12px; }
h3 { font-size: 1.15rem; letter-spacing: -.01em; }
.sub { color: var(--muted); text-align: center; max-width: 56ch; margin: 0 auto 44px; }

/* ---------- cards ---------- */
.grid { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.card .num { font-size: .85rem; color: var(--accent); font-weight: 700; margin-bottom: 10px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--muted); font-size: .96rem; }

.feat { display: flex; gap: 12px; align-items: flex-start; background: var(--bg-soft);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.feat .dot { color: var(--accent-2); font-weight: 700; }
.feat strong { color: var(--fg); display: block; font-weight: 600; margin-bottom: 2px; }
.feat p { color: var(--muted); font-size: .95rem; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; min-width: 520px; }
th, td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--border); font-size: .95rem; }
th { color: var(--muted); font-weight: 600; font-size: .82rem; letter-spacing: .03em; text-transform: uppercase; }
tr:last-child td { border-bottom: none; }
td.good { color: var(--accent-2); font-weight: 600; }
td.bad { color: var(--danger); }
.highlight-col { background: rgba(109, 139, 255, .07); }

/* ---------- pricing ---------- */
.price-grid { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); align-items: stretch; }
.plan { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; display: flex; flex-direction: column; }
.plan.featured { border-color: var(--accent); box-shadow: var(--shadow); position: relative; }
.plan .tag { position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #07070b;
  font-size: .72rem; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.plan h3 { margin-bottom: 6px; }
.plan .price { font-size: 2.2rem; font-weight: 800; letter-spacing: -.02em; margin: 8px 0 2px; }
.plan .price small { font-size: .9rem; color: var(--muted); font-weight: 500; }
.plan .desc { color: var(--muted); font-size: .92rem; margin-bottom: 18px; min-height: 40px; }
.plan ul { list-style: none; margin: 0 0 24px; display: grid; gap: 10px; }
.plan li { color: var(--muted); font-size: .93rem; padding-left: 24px; position: relative; }
.plan li::before { content: "✓"; position: absolute; left: 0; color: var(--accent-2); font-weight: 700; }
.plan .btn { margin-top: auto; text-align: center; }

/* ---------- widgets (calculator / analyzer) ---------- */
.widget { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 20px; padding: 32px; }
.field { margin-bottom: 22px; }
.field label { display: block; font-size: .9rem; color: var(--fg); font-weight: 600; margin-bottom: 8px; }
.field .hint { color: var(--muted-2); font-weight: 400; font-size: .82rem; }
input[type="text"], input[type="url"], input[type="number"], select {
  width: 100%; background: var(--bg); border: 1px solid var(--border); color: var(--fg);
  border-radius: 10px; padding: 13px 14px; font-size: 1rem; font-family: inherit; }
input:focus, select:focus { outline: none; border-color: var(--accent); }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.range-row { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.range-row .val { font-weight: 700; color: var(--accent); font-size: 1.05rem; }
.calc-out { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 8px; }
.calc-cell { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 20px; text-align: center; }
.calc-cell .k { color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
.calc-cell .v { font-size: 1.9rem; font-weight: 800; letter-spacing: -.02em; margin-top: 4px; }
.calc-cell.human .v { color: var(--danger); }
.calc-cell.ai .v { color: var(--accent-2); }
.savings-banner { margin-top: 16px; text-align: center; background: linear-gradient(135deg, rgba(109,139,255,.12), rgba(0,212,160,.10));
  border: 1px solid var(--border); border-radius: 12px; padding: 18px; font-size: 1.05rem; }
.savings-banner b { color: var(--accent-2); font-size: 1.3rem; }

/* analyzer result */
.result { margin-top: 26px; display: none; }
.result.show { display: block; animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.persona-card { background: var(--bg); border: 1px solid var(--accent); border-radius: 14px; padding: 24px; margin-bottom: 18px; }
.persona-card .role { font-size: 1.4rem; font-weight: 800; letter-spacing: -.02em; }
.persona-card .role .grad { font-weight: 800; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.chip { background: var(--bg-soft-2); border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px; font-size: .82rem; color: var(--muted); }
.chip.lang { color: var(--accent-2); border-color: rgba(0,212,160,.3); }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; vertical-align: -3px; }
@keyframes spin { to { transform: rotate(360deg); } }
.err { color: var(--danger); font-size: .9rem; margin-top: 10px; }

/* ---------- cta band ---------- */
.cta-band { text-align: center; }
.cta-band .box { background: linear-gradient(135deg, rgba(109,139,255,.12), rgba(0,212,160,.10));
  border: 1px solid var(--border); border-radius: 20px; padding: 56px 28px; }
.cta-band h2 { margin-bottom: 10px; }

/* ---------- faq ---------- */
.faq { display: grid; gap: 12px; max-width: 760px; margin: 0 auto; }
details { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 12px; padding: 4px 20px; }
details summary { cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; color: var(--accent); font-size: 1.4rem; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); padding: 0 0 18px; font-size: .95rem; }

/* ---------- footer ---------- */
footer.site { border-top: 1px solid var(--border); padding: 44px 0; color: var(--muted); font-size: .9rem; margin-top: 24px; }
.foot { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 24px; }
.foot-col { display: grid; gap: 8px; }
.foot-col h4 { color: var(--fg); font-size: .82rem; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; }
.foot-col a { color: var(--muted); }
.foot-col a:hover { color: var(--fg); }
.foot-bottom { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; color: var(--muted-2); }

/* ---------- page header ---------- */
.page-head { padding: 72px 0 36px; text-align: center; }
.page-head h1 { font-size: clamp(2rem, 5vw, 3.2rem); max-width: 18ch; margin: 0 auto 16px; }
.page-head p { color: var(--muted); max-width: 56ch; margin: 0 auto; font-size: 1.1rem; }

/* ---------- prose ---------- */
.prose { color: var(--muted); }
.prose h2 { text-align: left; margin: 36px 0 12px; }
.prose h3 { margin: 24px 0 8px; color: var(--fg); }
.prose p { margin-bottom: 16px; }
.prose ul { margin: 0 0 16px 22px; }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--fg); }

/* ---------- utilities ---------- */
.center { text-align: center; }
.mt-32 { margin-top: 32px; }
.note { color: var(--muted-2); font-size: .82rem; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .grid, .grid-2, .price-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0; background: var(--bg-soft); border-bottom: 1px solid var(--border); padding: 8px 24px 16px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav-toggle { display: block; }
  .calc-out { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 48px; }
}