/* ─────────────────────────────────────────────────────────────
   Maxim Kleyer — portfolio site
   One deliberately polished dark theme. Static, no framework.
   ───────────────────────────────────────────────────────────── */

:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a26;
  --border: #1e1e2e;
  --border-hover: #2a2a3e;
  --text: #e2e2ea;
  --text-muted: #9494ac;
  --accent: #4af0c0;
  --accent-dim: rgba(74, 240, 192, 0.08);
  --accent-glow: rgba(74, 240, 192, 0.14);
  --amber: #f0c54a;
  --white: #f5f5f8;
  --tag-bg: rgba(74, 240, 192, 0.06);
  --tag-border: rgba(74, 240, 192, 0.18);
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'DM Sans', system-ui, -apple-system, sans-serif;
  --display: 'Sora', var(--sans);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}

/* Film-grain overlay, carried over from the previous design. */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

.ambient-glow {
  position: fixed;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  top: -220px;
  right: -220px;
  pointer-events: none;
  z-index: 0;
  animation: drift 22s ease-in-out infinite alternate;
}

@keyframes drift {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(-110px, 90px); }
}

@media (prefers-reduced-motion: reduce) {
  .ambient-glow { animation: none; }
  html { scroll-behavior: auto; }
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ── Nav ── */
nav {
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.nav-logo {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
  align-items: center;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.25s;
}

.nav-links a:hover { color: var(--white); }

.nav-links .nav-cta {
  color: var(--accent);
  border: 1px solid var(--tag-border);
  padding: 6px 14px;
  border-radius: 6px;
  transition: background 0.25s, border-color 0.25s;
}

.nav-links .nav-cta:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Type ── */
h1, h2, h3 { font-family: var(--display); color: var(--white); line-height: 1.2; }

.kicker {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

section { padding: 72px 0 8px; }

.section-title {
  font-size: 1.7rem;
  margin-bottom: 8px;
}

.section-sub {
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 32px;
}

/* ── Hero ── */
.hero { padding: 96px 0 40px; }

.hero h1 {
  font-size: clamp(2rem, 5.4vw, 3.1rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  max-width: 780px;
  margin: 18px 0 22px;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero .sub {
  font-size: 1.06rem;
  color: var(--text-muted);
  max-width: 720px;
  margin-bottom: 34px;
}

.hero .sub strong { color: var(--text); font-weight: 600; }

.meta-line {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.meta-line .dot { color: var(--accent); margin: 0 8px; }

/* ── Buttons ── */
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 7px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1px solid var(--border-hover);
  color: var(--text);
  transition: border-color 0.25s, background 0.25s, transform 0.15s;
}

.btn:hover { border-color: var(--accent); transform: translateY(-1px); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #06251c;
}

.btn-primary:hover { background: #63f5cc; }

/* ── Cards & grids ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 26px;
  transition: border-color 0.25s, background 0.25s;
}

.card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

/* ── Stat blocks ── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 28px 0;
}

.stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 16px;
}

.stat .num {
  font-family: var(--mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent);
  display: block;
}

.stat .lbl {
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-top: 4px;
  display: block;
}

/* ── Tags ── */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 5px;
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  color: var(--accent);
  white-space: nowrap;
}

.tag.neutral {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-hover);
  color: var(--text-muted);
}

/* ── Pull quote (the honesty section) ── */
.pullquote {
  border-left: 3px solid var(--amber);
  background: rgba(240, 197, 74, 0.05);
  border-radius: 0 10px 10px 0;
  padding: 22px 26px;
  margin: 30px 0;
}

.pullquote .pq-title {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 10px;
}

.pullquote p { color: var(--text); }

.pullquote .pq-kicker {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* ── Tables ── */
.table-wrap { overflow-x: auto; margin: 22px 0; }

table.results {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 420px;
}

table.results th, table.results td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}

table.results th {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
}

table.results td.num { font-family: var(--mono); }
table.results .hl { color: var(--accent); font-weight: 600; }

/* ── Experience timeline ── */
.xp { border-left: 1px solid var(--border); padding-left: 26px; }

.xp-item { position: relative; padding-bottom: 34px; }

.xp-item::before {
  content: '';
  position: absolute;
  left: -31px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-dim);
}

.xp-item .dates {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.xp-item h3 { font-size: 1.08rem; margin: 4px 0 2px; }

.xp-item .org { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 10px; }

.xp-item ul { list-style: none; }

.xp-item li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 6px;
  color: var(--text);
  font-size: 0.94rem;
}

.xp-item li::before { content: '▸'; position: absolute; left: 0; color: var(--accent); font-size: 0.75rem; top: 3px; }

/* ── Skill groups ── */
.skill-group { margin-bottom: 20px; }

.skill-group h3 {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 10px;
}

/* ── Project cards ── */
.proj h3 { font-size: 1.12rem; margin-bottom: 4px; }

.proj .proj-stack {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.proj p { color: var(--text); font-size: 0.94rem; margin-bottom: 14px; }

.proj p strong { color: var(--white); }

.proj-links { display: flex; gap: 14px; flex-wrap: wrap; }

.proj-links a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.proj-links a:hover { text-decoration: underline; }

.proj-links .quiet { color: var(--text-muted); font-weight: 500; }

/* Small, deliberately secondary cards */
.mini-card {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
}

.mini-card h3 { font-size: 0.95rem; }
.mini-card p { font-size: 0.84rem; color: var(--text-muted); margin: 6px 0 8px; }
.mini-card a { font-size: 0.8rem; color: var(--accent); text-decoration: none; font-weight: 600; }
.mini-card a:hover { text-decoration: underline; }

/* ── Flagship banner ── */
.flagship {
  border: 1px solid var(--tag-border);
  background: linear-gradient(180deg, rgba(74, 240, 192, 0.05) 0%, var(--bg-card) 60%);
  border-radius: 14px;
  padding: 34px;
}

.flagship h3 { font-size: 1.4rem; margin-bottom: 6px; }

/* ── Case-study page ── */
.cs-body { max-width: 760px; }

.cs-body h2 { font-size: 1.35rem; margin: 52px 0 14px; }
.cs-body h2:first-of-type { margin-top: 36px; }
.cs-body p { margin-bottom: 14px; }
.cs-body p, .cs-body li { color: var(--text); }

.cs-body ul { margin: 0 0 16px 2px; list-style: none; }

.cs-body ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 9px;
  font-size: 0.96rem;
}

.cs-body ul li::before { content: '▸'; position: absolute; left: 0; color: var(--accent); font-size: 0.78rem; top: 3px; }

.cs-body strong { color: var(--white); }

.cs-body code {
  font-family: var(--mono);
  font-size: 0.84em;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
}

.crumb {
  font-family: var(--mono);
  font-size: 0.78rem;
  margin: 30px 0 0;
}

.crumb a { color: var(--text-muted); text-decoration: none; }
.crumb a:hover { color: var(--accent); }

/* ── Footer ── */
footer {
  margin-top: 90px;
  border-top: 1px solid var(--border);
  padding: 36px 0 46px;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-links a:hover { color: var(--accent); }

.footer-note {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  opacity: 0.75;
}

/* ── Responsive ── */
@media (max-width: 820px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .hero { padding: 64px 0 28px; }
  section { padding: 56px 0 8px; }
  .flagship { padding: 24px 20px; }
  .nav-links { gap: 16px; }
}