/* jnz — Data Analysis portfolio */

:root {
  --bg: #0b0d12;
  --bg-elev: #12151c;
  --bg-elev-2: #171b24;
  --border: #262b36;
  --text: #e8eaf0;
  --text-muted: #9aa1b1;
  --text-faint: #666d80;
  --accent: #6ee7c8;
  --accent-2: #7aa2ff;
  --accent-soft: rgba(110, 231, 200, 0.12);
  --radius: 14px;
  --max-width: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

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

/* Nav */
header.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 13, 18, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

.site-nav nav {
  display: flex;
  gap: 28px;
}

.site-nav nav a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.15s ease;
}

.site-nav nav a:hover { color: var(--text); }

.nav-toggle { display: none; }

/* Hero */
.hero {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 18px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.1;
  margin: 0 0 20px;
  max-width: 16ch;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.hero h1 .accent {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 56ch;
  margin: 0 0 32px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 550;
  border: 1px solid var(--border);
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.btn-primary:hover { opacity: 0.88; }

.btn-ghost { color: var(--text); }
.btn-ghost:hover { border-color: var(--text-muted); background: var(--bg-elev); }

/* Section headings */
section { padding: 80px 0; border-bottom: 1px solid var(--border); }
section:last-of-type { border-bottom: none; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: 1.7rem;
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.section-head .section-num {
  font-family: var(--mono);
  color: var(--text-faint);
  font-size: 0.85rem;
}

.section-note {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 60ch;
  margin: -24px 0 40px;
}

/* Case study cards */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.case-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.case-card.is-live {
  border-color: rgba(110, 231, 200, 0.35);
}

.case-card.is-live:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.case-card.is-placeholder {
  border-style: dashed;
  opacity: 0.6;
}

.case-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.status-pill {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.status-pill.progress {
  background: var(--accent-soft);
  color: var(--accent);
}

.status-pill.soon {
  background: var(--bg-elev-2);
  color: var(--text-faint);
  border: 1px solid var(--border);
}

.case-card h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
}

.case-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 6px;
}

.case-link {
  margin-top: auto;
  font-size: 0.88rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.case-card.is-placeholder .case-link { color: var(--text-faint); }

/* About / skills */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
}

.about-grid p { color: var(--text-muted); }

.skill-groups {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.skill-group h4 {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin: 0 0 10px;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-pills span {
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 8px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text);
}

/* Contact */
.contact-box {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.contact-box h2 { margin: 0 0 8px; font-size: 1.5rem; }
.contact-box p { margin: 0; color: var(--text-muted); }

footer {
  padding: 32px 0 48px;
  color: var(--text-faint);
  font-size: 0.82rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* Case study: segment summary cards */
.segment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.segment-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-top: 3px solid var(--seg-color, var(--accent));
  border-radius: var(--radius);
  padding: 22px;
}

.segment-card .n {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-faint);
}

.segment-card h3 {
  margin: 4px 0 8px;
  font-size: 1.2rem;
}

.segment-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* Case study: dimension bar chart */
.chart-legend {
  display: flex;
  gap: 22px;
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.chart-legend .swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  margin-right: 7px;
  vertical-align: middle;
}

.chart-dim { margin-bottom: 22px; }

.chart-dim-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  color: var(--text);
  margin-bottom: 8px;
}

.chart-dim-label .dir {
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.chart-bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 5px;
}

.chart-bar-row .seg-name {
  width: 88px;
  flex-shrink: 0;
  font-size: 0.78rem;
  color: var(--text-faint);
  font-family: var(--mono);
}

.chart-bar-track {
  flex: 1;
  background: var(--bg-elev-2);
  border-radius: 5px;
  height: 10px;
  overflow: hidden;
}

.chart-bar-fill {
  height: 100%;
  border-radius: 5px;
}

.chart-bar-row .val {
  width: 38px;
  text-align: right;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Case study: demographic comparison table */
.demo-table-wrap { overflow-x: auto; }

table.demo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

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

table.demo-table th {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  font-weight: 500;
}

table.demo-table td.metric {
  color: var(--text-muted);
  font-size: 0.82rem;
}

table.demo-table td.hi { color: var(--accent); font-weight: 600; }

/* Case study: callout note */
.callout {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-2);
  border-radius: 10px;
  padding: 18px 22px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.callout strong { color: var(--text); }

@media (max-width: 760px) {
  .site-nav nav { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .segment-grid { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 48px; }
  section { padding: 56px 0; }
  .contact-box { flex-direction: column; align-items: flex-start; }
  .chart-bar-row .seg-name { width: 68px; font-size: 0.72rem; }
}