/* ─────────────────────────────────────────────────────────────
   Joseph Lang — Hub / About page
   Multi-accent dark theme
   ──────────────────────────────────────────────────────────── */

:root {
  --bg:           #07090f;
  --bg-alt:       #0c0f18;
  --surface:      #111520;
  --card:         #161b28;
  --card-hover:   #1c2335;
  --border:       #1e2540;

  /* Specialty accent colours */
  --data:         #00c8ff;
  --data-dim:     #0099cc;
  --data-glow:    rgba(0, 200, 255, 0.12);
  --drone:        #f59e0b;
  --drone-dim:    #d97706;
  --drone-glow:   rgba(245, 158, 11, 0.12);
  --dev:          #22c55e;
  --dev-dim:      #16a34a;
  --dev-glow:     rgba(34, 197, 94, 0.12);

  --homelab:      #8b5cf6;
  --homelab-dim:  #7c3aed;
  --homelab-glow: rgba(139, 92, 246, 0.12);

  --text:         #e8edf5;
  --text-muted:   #8896b0;
  --text-faint:   #3a4560;

  --radius:       0.75rem;
  --radius-sm:    0.375rem;
  --transition:   0.2s ease;
  --font-sans:    system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono:    "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
ul  { list-style: none; }
a   { color: inherit; text-decoration: none; }

/* ── Container ────────────────────────────────────────────── */
.container {
  width: min(1200px, 100% - 3rem);
  margin-inline: auto;
}

/* ── Shared section ───────────────────────────────────────── */
.section { padding-block: 6rem; }
.section--alt { background: var(--bg-alt); }

.section__label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.section__heading {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3rem;
  line-height: 1.2;
}

/* ── Navigation ───────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 15, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.nav__brand {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.05em;
  transition: opacity var(--transition);
}
.nav__brand:hover { opacity: 0.7; }

.nav__links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav__links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav__links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  transition: width var(--transition);
}

.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { width: 100%; }

/* Portfolio links in nav get coloured underlines */
.nav__portfolio--data  { }
.nav__portfolio--data::after  { background: var(--data); }
.nav__portfolio--data:hover   { color: var(--data); }

.nav__portfolio--drone::after { background: var(--drone); }
.nav__portfolio--drone:hover  { color: var(--drone); }

.nav__portfolio--dev::after   { background: var(--dev); }
.nav__portfolio--dev:hover    { color: var(--dev); }

.nav__divider {
  color: var(--text-faint);
  font-size: 0.75rem;
  user-select: none;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--data {
  background: rgba(0,200,255,0.1);
  color: var(--data);
  border: 1px solid rgba(0,200,255,0.3);
}
.btn--data:hover {
  background: rgba(0,200,255,0.18);
  transform: translateY(-1px);
}

.btn--drone {
  background: rgba(245,158,11,0.1);
  color: var(--drone);
  border: 1px solid rgba(245,158,11,0.3);
}
.btn--drone:hover {
  background: rgba(245,158,11,0.18);
  transform: translateY(-1px);
}

.btn--dev {
  background: rgba(34,197,94,0.1);
  color: var(--dev);
  border: 1px solid rgba(34,197,94,0.3);
}
.btn--dev:hover {
  background: rgba(34,197,94,0.18);
  transform: translateY(-1px);
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.2;
  pointer-events: none;
}

/* Three coloured glows, one per specialty */
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  opacity: 0.35;
}
.hero__glow--data {
  width: 500px; height: 400px;
  top: -5%; left: -5%;
  background: var(--data);
  opacity: 0.06;
}
.hero__glow--drone {
  width: 500px; height: 400px;
  top: 30%; right: 5%;
  background: var(--drone);
  opacity: 0.06;
}
.hero__glow--dev {
  width: 400px; height: 350px;
  bottom: 0; left: 40%;
  background: var(--dev);
  opacity: 0.05;
}

.hero__content {
  position: relative;
  padding-block: 8rem 4rem;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.hero__name {
  font-size: clamp(2.75rem, 7vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.hero__roles {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.hero__role {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  font-weight: 600;
}
.hero__role--data  { color: var(--data); }
.hero__role--drone { color: var(--drone); }
.hero__role--dev   { color: var(--dev); }

.hero__sep {
  color: var(--text-faint);
  font-size: 0.9rem;
}

.hero__subtitle {
  max-width: 560px;
  font-size: 1.075rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}
.hero__scroll-hint span {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--text-faint));
  margin-inline: auto;
  animation: scroll-line 2s ease-in-out infinite;
}
@keyframes scroll-line {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ── Portfolio Cards ──────────────────────────────────────── */
.portfolios {
  padding-block: 5rem 6rem;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

.portfolios .section__label { color: var(--text-muted); }
.portfolios .section__heading { margin-bottom: 2rem; }

.pcard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.pcard {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all var(--transition);
  text-decoration: none;
  cursor: pointer;
}

/* Accent border on left per specialty */
.pcard--data    { border-left: 3px solid var(--data); }
.pcard--drone   { border-left: 3px solid var(--drone); }
.pcard--dev     { border-left: 3px solid var(--dev); }
.pcard--homelab { border-left: 3px solid var(--homelab); }
.pcard--soon    { border-left: 3px solid var(--text-faint); border-style: solid; opacity: 0.6; cursor: default; }

.pcard--data:hover    { background: var(--card-hover); border-color: var(--data);    transform: translateY(-4px); box-shadow: 0 8px 32px var(--data-glow); }
.pcard--drone:hover   { background: var(--card-hover); border-color: var(--drone);   transform: translateY(-4px); box-shadow: 0 8px 32px var(--drone-glow); }
.pcard--dev:hover     { background: var(--card-hover); border-color: var(--dev);     transform: translateY(-4px); box-shadow: 0 8px 32px var(--dev-glow); }
.pcard--homelab:hover { background: var(--card-hover); border-color: var(--homelab); transform: translateY(-4px); box-shadow: 0 8px 32px var(--homelab-glow); }

.pcard__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}

.pcard__icon {
  font-size: 1.75rem;
  line-height: 1;
}

.pcard__url {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-faint);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 0.15rem 0.55rem;
}
.pcard__url--muted { color: var(--text-faint); }

.pcard--data    .pcard__icon { color: var(--data); }
.pcard--drone   .pcard__icon { color: var(--drone); }
.pcard--dev     .pcard__icon { color: var(--dev); }
.pcard--homelab .pcard__icon { color: var(--homelab); }
.pcard--soon    .pcard__icon { color: var(--text-faint); }

.pcard__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
}

.pcard__tagline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-faint);
  letter-spacing: 0.05em;
}

.pcard__desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
}

.pcard__cta {
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: auto;
  transition: letter-spacing var(--transition);
}
.pcard--data    .pcard__cta { color: var(--data); }
.pcard--drone   .pcard__cta { color: var(--drone); }
.pcard--dev     .pcard__cta { color: var(--dev); }
.pcard--homelab .pcard__cta { color: var(--homelab); }
.pcard__cta--soon { color: var(--text-faint); }

.pcard--data:hover    .pcard__cta,
.pcard--drone:hover   .pcard__cta,
.pcard--dev:hover     .pcard__cta,
.pcard--homelab:hover .pcard__cta {
  letter-spacing: 0.03em;
}

/* ── About ────────────────────────────────────────────────── */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about__text .section__heading { margin-bottom: 1.5rem; }

.about__text p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-size: 1rem;
}

.about__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  border-radius: 99px;
  padding: 0.25rem 0.75rem;
  border: 1px solid;
  white-space: nowrap;
}

.badge--data    { color: var(--data);  border-color: rgba(0,200,255,0.3);  background: rgba(0,200,255,0.07); }
.badge--drone   { color: var(--drone); border-color: rgba(245,158,11,0.3); background: rgba(245,158,11,0.07); }
.badge--dev     { color: var(--dev);   border-color: rgba(34,197,94,0.3);  background: rgba(34,197,94,0.07); }
.badge--neutral { color: var(--text-muted); border-color: var(--border); background: var(--surface); }

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition: all var(--transition);
}

.stat-card--data:hover  { border-color: var(--data);  transform: translateY(-2px); }
.stat-card--drone:hover { border-color: var(--drone); transform: translateY(-2px); }
.stat-card--dev:hover   { border-color: var(--dev);   transform: translateY(-2px); }
.stat-card--neutral:hover { border-color: var(--text-muted); transform: translateY(-2px); }

.stat-card__value {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stat-card--data    .stat-card__value { color: var(--data); }
.stat-card--drone   .stat-card__value { color: var(--drone); }
.stat-card--dev     .stat-card__value { color: var(--dev); }
.stat-card--neutral .stat-card__value { color: var(--text-muted); }

.stat-card__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ── Specialty preview sections ───────────────────────────── */
.specialty-preview { }

.sp__inner {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 4rem;
  align-items: center;
}

.sp__inner--flip {
  grid-template-columns: 280px 1fr;
}

.sp__heading { margin-bottom: 1rem; }

.sp__text p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-size: 1rem;
  line-height: 1.75;
}

.sp__highlights {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.sp__highlights li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-left: 1rem;
  position: relative;
}

.sp__highlights li::before {
  content: "›";
  position: absolute;
  left: 0;
  font-weight: 700;
}

.specialty-preview--data  .sp__highlights li::before { color: var(--data); }
.specialty-preview--drone .sp__highlights li::before { color: var(--drone); }
.specialty-preview--dev   .sp__highlights li::before { color: var(--dev); }

.sp__accent {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 5rem;
  opacity: 0.6;
  transition: opacity var(--transition);
}

.specialty-preview:hover .sp__accent { opacity: 0.9; }

.sp__accent--data  { box-shadow: inset 0 0 60px var(--data-glow); }
.sp__accent--drone { box-shadow: inset 0 0 60px var(--drone-glow); }
.sp__accent--dev   { box-shadow: inset 0 0 60px var(--dev-glow); }

/* ── Gearhead teaser ──────────────────────────────────────── */
.gearhead__inner {
  text-align: center;
  max-width: 560px;
  margin-inline: auto;
}

.gearhead__heading { margin-bottom: 1rem; color: var(--text-muted); }

.gearhead__body {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 2rem;
  line-height: 1.75;
}

.gearhead__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  border: 1px dashed var(--border);
  border-radius: 99px;
  padding: 0.4rem 1.1rem;
}

.gearhead__icon { font-size: 1rem; }

/* ── Contact ──────────────────────────────────────────────── */
.contact__inner {
  text-align: center;
  max-width: 580px;
  margin-inline: auto;
}
.contact__inner .section__heading { margin-bottom: 1rem; }

.contact__body {
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.contact__link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.875rem 2rem;
  width: 100%;
  max-width: 420px;
  justify-content: center;
  transition: all var(--transition);
}
.contact__link:hover {
  color: var(--text);
  border-color: var(--text-muted);
  transform: translateY(-2px);
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding-block: 1.75rem;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer p { font-size: 0.8rem; color: var(--text-faint); }

.footer__nav {
  display: flex;
  gap: 1.5rem;
}

.footer__nav a {
  font-size: 0.8rem;
  color: var(--text-faint);
  transition: color var(--transition);
  font-family: var(--font-mono);
}
.footer__nav a:hover { color: var(--text-muted); }

/* ── Focus visible ────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--text-muted);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .pcard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .about__grid,
  .sp__inner,
  .sp__inner--flip {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .sp__inner--flip .sp__accent {
    order: -1;
  }

  .sp__accent {
    max-width: 200px;
    font-size: 4rem;
  }
}

@media (max-width: 640px) {
  .nav__links { gap: 1rem; font-size: 0.8rem; }
  .nav__divider { display: none; }

  .pcard-grid { grid-template-columns: 1fr; }

  .about__stats { grid-template-columns: 1fr 1fr; }

  .hero__roles { gap: 0.5rem; }

  .footer__inner { flex-direction: column; text-align: center; }
}