/* ───────────────────────────────────────────────────────────
   Nate Ng — Personal site
   Mobile-first. Navy + warm off-white + amber accent.
   Instrument Serif headlines / Geist body.
   ─────────────────────────────────────────────────────────── */

:root {
  --navy: #0B1E3F;
  --navy-soft: #1A2D52;
  --navy-deep: #061633;
  --paper: #FAFAF7;
  --paper-warm: #F2EDE2;
  --line: rgba(11, 30, 63, 0.12);
  --line-strong: rgba(11, 30, 63, 0.22);
  --muted: rgba(11, 30, 63, 0.62);
  --muted-soft: rgba(11, 30, 63, 0.42);
  --accent: #D9A24F;
  --accent-ink: #8A5E1B;
  --accent-soft: rgba(217, 162, 79, 0.16);

  --serif: "Instrument Serif", "Source Serif 4", Georgia, serif;
  --sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 980px;
  --pad: 20px;
  --r: 14px;
  --r-sm: 10px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--navy);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(217, 162, 79, 0.07), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(11, 30, 63, 0.04), transparent 55%);
  background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; cursor: pointer; }

/* ── Type ─────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.005em;
  line-height: 1.04;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.mono { font-family: var(--mono); }

/* ── Layout ───────────────────────────────────────────── */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

html { scroll-behavior: smooth; }

section { padding: 64px 0; border-top: 1px solid var(--line); scroll-margin-top: 64px; }
section:first-of-type { border-top: 0; }

.section-head { margin-bottom: 28px; }
.section-head .eyebrow { margin-bottom: 14px; }
.section-head h2 {
  font-size: clamp(30px, 7vw, 48px);
  letter-spacing: -0.015em;
}
.section-head h2 em {
  font-style: italic;
  color: var(--accent-ink);
  font-weight: 400;
}

/* ── Top bar ──────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(250, 250, 247, 0.86);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 54px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 20px;
}
.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--navy);
  position: relative;
  flex: 0 0 auto;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--accent);
  transform: translate(-3px, -3px);
  mix-blend-mode: normal;
}
.topnav {
  display: flex;
  gap: 14px;
  font-size: 12.5px;
  color: var(--muted);
  font-family: var(--sans);
  align-items: center;
}
.topnav a {
  padding: 4px 2px;
  position: relative;
  transition: color 140ms ease;
}
.topnav a:hover, .topnav a.is-current {
  color: var(--navy);
}
.topnav a.is-current::after {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  bottom: -2px;
  height: 1.5px;
  background: var(--accent);
}
.topnav .dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 6px;
  vertical-align: middle;
}

/* ── Hero ─────────────────────────────────────────────── */
.hero {
  padding-top: 48px;
  padding-bottom: 56px;
}
.hero .eyebrow { margin-bottom: 18px; }
.hero h1 {
  font-size: clamp(40px, 11vw, 84px);
  letter-spacing: -0.02em;
  line-height: 1.0;
}
.hero h1 .ampersand,
.hero h1 em {
  font-style: italic;
  font-weight: 400;
}
.hero h1 .amp-accent { color: var(--accent-ink); }
.hero-sub {
  margin-top: 22px;
  font-size: 18px;
  line-height: 1.5;
  max-width: 36ch;
  color: var(--navy);
  font-weight: 300;
}
.hero-meta {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 12px;
  font-family: var(--mono);
  color: var(--muted);
  letter-spacing: 0.04em;
}
.hero-meta .pip {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
  vertical-align: middle;
}

/* ── About ────────────────────────────────────────────── */
.about p {
  font-size: 17px;
  line-height: 1.62;
  color: var(--navy);
  max-width: 62ch;
}
.about p + p { margin-top: 18px; }
.about strong {
  font-weight: 500;
  background: linear-gradient(transparent 62%, var(--accent-soft) 62%);
  padding: 0 2px;
}

/* Inline bio links — read as editorial highlights that also navigate */
.bio-link {
  font-weight: 400;
  color: var(--navy);
  background: linear-gradient(transparent 62%, var(--accent-soft) 62%);
  padding: 0 2px;
  text-decoration: none;
  transition: background 160ms ease;
  cursor: pointer;
}
.bio-link:hover,
.bio-link:focus-visible {
  background: linear-gradient(transparent 0%, var(--accent-soft) 0%);
  outline: none;
}
.about .bio-link {
  font-weight: 500;
  background: linear-gradient(transparent 62%, var(--accent-soft) 62%);
  padding: 0 2px;
  color: var(--navy);
  cursor: pointer;
  border-radius: 2px;
  transition: background 160ms ease;
}
.about .bio-link:hover,
.about .bio-link:focus-visible {
  background: linear-gradient(transparent 0%, var(--accent-soft) 0%);
}

.stat-row {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}
.stat {
  background: var(--paper);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat .n {
  font-family: var(--serif);
  font-size: 32px;
  line-height: 1;
  letter-spacing: -0.015em;
}
.stat .n em { font-style: italic; color: var(--accent-ink); }
.stat .l {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.4;
}

/* ── Projects ─────────────────────────────────────────── */
.filters {
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 8px;
}

/* "All work" clear button — distinct from category chips */
.clear-filters {
  background: transparent !important;
  color: var(--navy) !important;
  border-color: var(--line-strong) !important;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 7px 14px;
}
.clear-filters[aria-pressed="true"] {
  background: var(--navy) !important;
  color: var(--paper) !important;
  border-color: var(--navy) !important;
}
.clear-filters:hover {
  border-color: var(--navy) !important;
}
.clear-filters .chip-count {
  background: rgba(11, 30, 63, 0.06);
  color: var(--muted);
}
.clear-filters[aria-pressed="true"] .chip-count {
  background: rgba(250, 250, 247, 0.18);
  color: var(--paper);
}
.chip {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 400;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--navy);
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease, opacity 120ms ease;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
}
.chip-label { line-height: 1; }
.chip-count {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0;
  color: var(--muted);
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(11, 30, 63, 0.06);
  line-height: 1;
  transition: background 120ms ease, color 120ms ease;
}
.chip:hover:not(.is-empty) { border-color: var(--navy); }
.chip[aria-pressed="true"] {
  background: var(--navy);
  color: var(--paper);
  border-color: var(--navy);
}
.chip[aria-pressed="true"] .chip-count {
  background: rgba(250, 250, 247, 0.16);
  color: var(--paper);
}
.chip.chip-major[aria-pressed="true"] {
  background: var(--navy);
  color: var(--paper);
}
.chip.chip-minor[aria-pressed="true"] {
  background: var(--accent);
  color: var(--navy-deep);
  border-color: var(--accent);
}
.chip.chip-minor[aria-pressed="true"] .chip-count {
  background: rgba(11, 30, 63, 0.14);
  color: var(--navy-deep);
}
.chip-all[aria-pressed="true"] {
  background: var(--navy);
  color: var(--paper);
}
.chip.is-empty {
  opacity: 0.38;
  cursor: not-allowed;
  border-color: var(--line);
  color: var(--muted-soft);
}
.chip.is-empty .chip-count {
  background: transparent;
  color: var(--muted-soft);
}
.chip.is-hidden { display: none; }

.filter-foot {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.filter-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.view-link {
  appearance: none;
  background: transparent;
  border: 0;
  padding: 4px 0;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--navy);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 140ms ease;
}
.view-link-label {
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: text-decoration-color 140ms ease;
}
.view-link:hover .view-link-label,
.view-link:focus-visible .view-link-label {
  text-decoration-color: var(--navy);
}
.view-link-arrow {
  width: 8px;
  height: 8px;
  border-right: 1.4px solid currentColor;
  border-bottom: 1.4px solid currentColor;
  transform: rotate(45deg);
  display: inline-block;
  margin-bottom: 3px;
  transition: transform 200ms ease;
}
/* When showing all (pressed = true), arrow points up = collapse */
.view-link[aria-pressed="true"] .view-link-arrow {
  transform: rotate(-135deg);
  margin-bottom: -2px;
}

/* Reveal more removed — single inline toggle handles state */

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}
.card:hover { border-color: var(--line-strong); }
.card.open {
  border-color: var(--navy);
  box-shadow: 0 8px 28px -16px rgba(11, 30, 63, 0.22);
}
.card.flash {
  animation: card-flash 1.4s ease-out;
}
@keyframes card-flash {
  0%   { box-shadow: 0 0 0 0 rgba(217, 162, 79, 0.0), 0 8px 28px -16px rgba(11, 30, 63, 0.22); }
  20%  { box-shadow: 0 0 0 6px rgba(217, 162, 79, 0.35), 0 8px 28px -16px rgba(11, 30, 63, 0.22); }
  100% { box-shadow: 0 0 0 0 rgba(217, 162, 79, 0.0), 0 8px 28px -16px rgba(11, 30, 63, 0.22); }
}

.card-head {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 18px 18px 18px 18px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 14px;
  align-items: start;
}

.card-num {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--muted-soft);
  text-transform: uppercase;
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card-num .year {
  color: var(--muted);
}

.card-title {
  font-family: var(--serif);
  font-size: 24px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  grid-column: 1 / 2;
}

.card-toggle {
  grid-column: 2 / 3;
  grid-row: 2 / 3;
  align-self: start;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: transparent;
  display: inline-grid;
  place-items: center;
  transition: background 160ms ease, transform 240ms ease, border-color 160ms ease;
  flex: 0 0 auto;
}
.card-toggle svg { width: 14px; height: 14px; }
.card-toggle .bar { fill: var(--navy); transition: opacity 160ms ease; }
.card.open .card-toggle {
  background: var(--navy);
  border-color: var(--navy);
  transform: rotate(45deg);
}
.card.open .card-toggle .bar { fill: var(--paper); }

.card-summary {
  grid-column: 1 / -1;
  font-size: 15px;
  line-height: 1.5;
  color: var(--muted);
  margin-top: 2px;
}

.card-tags {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.card-tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--paper-warm);
}
.card-tag.major {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--line-strong);
}
.card-tag.minor {
  background: var(--accent-soft);
  color: var(--accent-ink);
}

.card-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 320ms ease;
}
.card-body-inner {
  overflow: hidden;
}
.card.open .card-body { grid-template-rows: 1fr; }
.card-body-content {
  padding: 4px 18px 22px;
  border-top: 1px solid var(--line);
  margin-top: 4px;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  padding-top: 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--muted);
}
.card-meta .k { color: var(--muted-soft); margin-right: 6px; }

.case-block { margin-top: 18px; }
.case-block h4 {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted-soft);
  font-weight: 400;
  margin-bottom: 8px;
}
.case-block p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--navy);
  max-width: 62ch;
}
.outcomes {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}
.outcomes li {
  font-size: 15px;
  line-height: 1.45;
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 8px;
  align-items: start;
}
.outcomes li::before {
  content: "";
  margin-top: 9px;
  height: 1px;
  background: var(--accent);
  width: 10px;
}

.approach-list {
  margin: 0;
  padding: 0 0 0 18px;
  list-style: disc outside;
  color: var(--navy);
}
.approach-list li {
  font-size: 15px;
  line-height: 1.55;
  margin-bottom: 8px;
  max-width: 64ch;
}
.approach-list li::marker { color: var(--muted-soft); }
.approach-list ul {
  margin: 8px 0 4px 0;
  padding: 0 0 0 18px;
  list-style: circle outside;
}
.approach-list ul li {
  font-size: 14.5px;
  color: var(--muted);
  margin-bottom: 6px;
}

.empty-state {
  border: 1px dashed var(--line-strong);
  border-radius: var(--r);
  padding: 30px 18px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* ── Skills ───────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.skill-group {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}
.skill-group h3 {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.skill-group h3 em {
  font-style: italic;
  color: var(--accent-ink);
  font-weight: 400;
}
.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 15px;
  line-height: 1.45;
}
.skill-list span {
  position: relative;
  padding-right: 14px;
}
.skill-list span:not(:last-child)::after {
  content: "·";
  position: absolute;
  right: 2px;
  top: 0;
  color: var(--muted-soft);
}

.tools-block { margin-top: 36px; }
.tools-block .eyebrow { margin-bottom: 14px; }
.tools-marquee {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
}
.tool-chip {
  font-family: var(--mono);
  font-size: 12px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--navy);
  background: var(--paper);
}

/* ── Timeline ─────────────────────────────────────────── */
.timeline-wrap {
  position: relative;
  overflow: hidden;
}
.t-scroll-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(250, 250, 247, 0.94);
  border: 1px solid var(--line-strong);
  color: var(--navy);
  z-index: 25;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity 220ms ease, visibility 220ms ease, transform 160ms ease, background 160ms ease;
  box-shadow: 0 4px 14px rgba(11, 30, 63, 0.08);
}
.t-scroll-arrow:hover {
  background: var(--paper-warm);
  transform: translateY(-50%) scale(1.06);
}
.t-scroll-arrow.left-arrow {
  left: 16px;
}
.t-scroll-arrow.right-arrow {
  right: 16px;
}
.t-scroll-arrow.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.t-scroll-arrow::after {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  border-left: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  box-sizing: border-box;
}
.t-scroll-arrow.left-arrow::after {
  transform: rotate(45deg);
  margin-left: 3px;
}
.t-scroll-arrow.right-arrow::after {
  transform: rotate(-135deg);
  margin-right: 3px;
}
.timeline-track {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 12px 0 24px;
  position: relative;
  width: 100%;
}
.timeline-track::-webkit-scrollbar { display: none; }

.timeline-grid {
  display: grid;
  grid-template-rows: auto auto auto;
  position: relative;
  padding: 24px 140px 12px 140px; /* Side padding so endpoints center perfectly */
}

/* --- Row 1: Milestones (Top) --- */
.t-milestone-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
  padding-bottom: 28px;
}
.t-milestone-card {
  width: 230px;
  flex-shrink: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 12px 14px;
  box-shadow: 0 4px 12px rgba(11, 30, 63, 0.03);
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
  text-align: left;
  z-index: 10;
  position: relative;
}
.t-milestone-card:hover {
  border-color: var(--navy);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(11, 30, 63, 0.08);
}
.t-milestone-card.education-card {
  border-style: dashed;
  border-color: var(--line-strong);
  background-color: rgba(11, 30, 63, 0.015);
}
.t-milestone-card.education-card:hover {
  border-color: var(--accent);
  background-color: var(--accent-soft);
}
.t-education-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: 6px;
  border: 1px solid var(--accent);
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--accent-soft);
  font-weight: 500;
  line-height: 1;
}
.t-milestone-card.bio-link {
  cursor: pointer;
}
.t-milestone-card.bio-link:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.t-milestone-card.bio-link[data-project=""] {
  cursor: default;
}
.t-milestone-card.bio-link[data-project=""]:hover {
  border-color: var(--navy);
  background: var(--paper);
}
.t-milestone-title {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.15;
  color: var(--navy);
  margin-bottom: 4px;
}
.t-milestone-body {
  font-size: 12px;
  line-height: 1.45;
  color: var(--muted);
}
.t-project-link {
  display: inline-block;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-top: 8px;
}
.t-connector {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 1px;
  height: 28px;
  background: var(--line-strong);
  transform: translateX(-50%);
  z-index: 2;
}

/* --- Row 2: Axis (Middle) --- */
.t-axis-line {
  height: 2px;
  background: var(--line-strong);
  align-self: center;
  z-index: 1;
}
.t-axis-node {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 50px;
  z-index: 3;
}
.t-axis-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--navy);
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}
.t-axis-dot.active {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.3);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.t-axis-year {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-top: 6px;
}

/* --- Row 3: Eras (Bottom) --- */
.t-era-card {
  background: rgba(11, 30, 63, 0.02);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 14px 16px;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  transition: border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
  min-width: 200px;
  text-align: left;
  position: relative;
  /* subtle margin on sides to create visual gap between era spans */
  margin-left: 4px;
  margin-right: 4px;
}
.t-era-card:hover {
  border-color: var(--line-strong);
  background: rgba(11, 30, 63, 0.04);
  box-shadow: 0 4px 12px rgba(11, 30, 63, 0.02);
}
.t-era-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}
.t-era-company {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--navy);
}
.t-era-badge {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 999px;
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
}
.t-era-badge.badge-fortune-500 {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.t-era-badge.badge-startup {
  background: rgba(11, 30, 63, 0.04);
  border-color: var(--line-strong);
  color: var(--navy);
}
.t-era-badge.badge-fortune-500-incubator {
  background: linear-gradient(90deg, rgba(217, 162, 79, 0.08), rgba(11, 30, 63, 0.04));
  border-color: var(--accent);
  color: var(--navy);
}
.t-era-role {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 400;
  color: var(--navy);
}
.t-era-years {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
}
.t-era-body {
  font-size: 12px;
  line-height: 1.45;
  color: var(--muted);
  margin-top: 4px;
}
/* ── Speaking / advisory ─────────────────────────────── */
.callout {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 18px;
  background: var(--paper);
  display: grid;
  gap: 12px;
}
.callout .ribbon {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
}
.callout h3 {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.15;
}
.callout p { color: var(--muted); font-size: 14.5px; line-height: 1.55; }

/* ── Contact / footer ─────────────────────────────────── */
.contact h2 {
  font-size: clamp(36px, 9vw, 64px);
  letter-spacing: -0.02em;
  line-height: 1.0;
}
.contact h2 em { font-style: italic; color: var(--accent-ink); font-weight: 400; }
.contact p {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.55;
  color: var(--muted);
  max-width: 44ch;
}
.contact-links {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.contact-loc {
  margin-top: 18px !important;
  font-family: var(--mono);
  font-size: 12px !important;
  letter-spacing: 0.04em;
  color: var(--muted-soft) !important;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 400;
  border: 1px solid var(--navy);
  background: var(--navy);
  color: var(--paper);
  transition: transform 140ms ease, background 140ms ease;
}
.btn.ghost {
  background: transparent;
  color: var(--navy);
}
.btn:hover { transform: translateY(-1px); }

footer.foot {
  border-top: 1px solid var(--line);
  padding: 24px 0 36px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  justify-content: space-between;
}

/* ── Responsive ───────────────────────────────────────── */
@media (min-width: 640px) {
  :root { --pad: 32px; }
  .stat-row { grid-template-columns: repeat(4, 1fr); }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .topnav { gap: 22px; font-size: 13px; }
  .card-head { padding: 22px 22px 22px 22px; }
  .card-body-content { padding: 4px 22px 26px; }
  .card-title { font-size: 26px; }
}

@media (min-width: 900px) {
  :root { --pad: 40px; }
  .hero { padding-top: 80px; padding-bottom: 80px; }
  section { padding: 88px 0; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .card.open { grid-column: 1 / -1; }
  .skills-grid { grid-template-columns: repeat(3, 1fr); }
  .skill-group { padding-top: 22px; }
}

/* reduce motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}