/* PeopleCircleHub theme — DS-2: only #0D1117, #1A2230, #E8EDF3, #7C3AED, #FF6B35 */
@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,600;0,700;1,400&family=DM+Sans:wght@300;400;500;600&display=swap');

/* ── Typography overrides ───────────────────────────────────────── */
:root {
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --font-serif: 'Lora', Georgia, serif;

  /* Spacing scale */
  --space-xs:  0.25rem;   /* 4px  */
  --space-sm:  0.5rem;    /* 8px  */
  --space-md:  1rem;      /* 16px */
  --space-lg:  1.5rem;    /* 24px */
  --space-xl:  2rem;      /* 32px */
  --space-2xl: 4rem;      /* 64px */
  --space-3xl: 6rem;      /* 96px */

  /* Type scale */
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-md:   1.125rem;
  --text-lg:   1.25rem;
  --text-xl:   1.5rem;
  --text-2xl:  2rem;
  --text-3xl:  2.5rem;
  --text-4xl:  3.25rem;

  /* Containers */
  --container:        var(--max-w);
  --container-narrow: 68ch;
  --measure:          68ch;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  letter-spacing: -0.01em;
}

/* ── Container ──────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-xl);
  }
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* ── Site Header / Nav ──────────────────────────────────────────── */
.site-header {
  border-bottom: 1px solid #1A2230;
  padding-block: var(--space-md);
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-logo {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--text-lg);
  color: #E8EDF3;
  letter-spacing: -0.02em;
}

.site-logo span {
  color: #7C3AED;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.site-nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: #E8EDF3;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.7;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  opacity: 1;
  color: #FF6B35;
}

@media (max-width: 600px) {
  .site-nav {
    gap: var(--space-md);
  }
  .site-nav a {
    font-size: 0.75rem;
  }
}

/* ── Hero / Masthead ────────────────────────────────────────────── */
.site-hero {
  padding-block: var(--space-2xl) var(--space-xl);
  border-bottom: 1px solid #1A2230;
  position: relative;
  overflow: hidden;
}

.site-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 20% 50%, rgba(124, 58, 237, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 70% at 80% 30%, rgba(255, 107, 53, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.hero-eyebrow {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #FF6B35;
  margin-bottom: var(--space-md);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, var(--text-4xl));
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: #E8EDF3;
  max-width: 16ch;
  margin-bottom: var(--space-md);
}

.hero-title em {
  color: #7C3AED;
  font-style: italic;
}

.hero-tagline {
  font-size: var(--text-md);
  color: #E8EDF3;
  opacity: 0.65;
  max-width: 50ch;
  line-height: 1.6;
  margin-bottom: var(--space-xl);
}

.hero-cta {
  display: inline-block;
  background: #FF6B35;
  color: #0D1117;
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: var(--space-sm) var(--space-lg);
  border-radius: 2px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.hero-cta:hover,
.hero-cta:focus-visible {
  background: #E8EDF3;
  transform: translateY(-1px);
}

/* ── Section headings ───────────────────────────────────────────── */
.section-header {
  padding-block: var(--space-xl) var(--space-lg);
}

.section-label {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #7C3AED;
  margin-bottom: var(--space-sm);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, var(--text-2xl));
  font-weight: 700;
  color: #E8EDF3;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* ── Article Cards Grid ─────────────────────────────────────────── */
.cards-section {
  padding-block: var(--space-xl) var(--space-2xl);
}

.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 600px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .cards-grid .card--featured {
    grid-column: span 2;
  }
}

.card {
  background: #1A2230;
  border-radius: 4px;
  padding: var(--space-lg);
  border: 1px solid rgba(124, 58, 237, 0.15);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transition: border-color 0.25s ease, transform 0.25s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #7C3AED, transparent);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.card:hover {
  border-color: rgba(124, 58, 237, 0.45);
  transform: translateY(-2px);
}

.card:hover::before {
  opacity: 1;
}

.card-cluster {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7C3AED;
  background: rgba(124, 58, 237, 0.1);
  border-radius: 2px;
  padding: 0.2em 0.6em;
  display: inline-block;
  align-self: flex-start;
}

.card-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: 1.3;
  color: #E8EDF3;
  letter-spacing: -0.01em;
}

.card--featured .card-title {
  font-size: var(--text-xl);
}

.card-excerpt {
  font-size: var(--text-sm);
  color: #E8EDF3;
  opacity: 0.6;
  line-height: 1.65;
  flex: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  font-weight: 600;
  color: #FF6B35;
  letter-spacing: 0.02em;
  margin-top: auto;
  transition: gap 0.2s ease;
}

.card-link::after {
  content: '→';
  transition: transform 0.2s ease;
}

.card:hover .card-link::after {
  transform: translateX(3px);
}

/* ── Horizontal rule accent ─────────────────────────────────────── */
hr.accent-rule {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, #7C3AED 0%, rgba(124, 58, 237, 0.2) 60%, transparent 100%);
  margin-block: var(--space-lg);
}

/* ── Atlas / Thematic page ──────────────────────────────────────── */
.atlas-hero {
  padding-block: var(--space-2xl) var(--space-lg);
  border-bottom: 1px solid #1A2230;
  position: relative;
  overflow: hidden;
}

.atlas-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 80% 20%, rgba(255, 107, 53, 0.07) 0%, transparent 60%);
  pointer-events: none;
}

.atlas-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, var(--text-3xl));
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: #E8EDF3;
  margin-bottom: var(--space-md);
}

.atlas-description {
  font-size: var(--text-md);
  color: #E8EDF3;
  opacity: 0.6;
  max-width: 55ch;
  line-height: 1.65;
}

.atlas-clusters {
  padding-block: var(--space-xl) var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.cluster-block {
  padding: var(--space-lg);
  background: #1A2230;
  border-radius: 4px;
  border-left: 3px solid #7C3AED;
}

.cluster-name {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7C3AED;
  margin-bottom: var(--space-sm);
}

.cluster-framing {
  font-size: var(--text-base);
  color: #E8EDF3;
  opacity: 0.65;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.cluster-articles {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.cluster-article-link {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  color: #E8EDF3;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(232, 237, 243, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color 0.2s ease;
}

.cluster-article-link:hover,
.cluster-article-link:focus-visible {
  color: #FF6B35;
}

.cluster-article-link span {
  font-size: var(--text-sm);
  opacity: 0.5;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.cluster-article-link:hover span {
  opacity: 1;
  transform: translateX(3px);
}

/* ── Articles list page ─────────────────────────────────────────── */
.articles-list {
  padding-block: var(--space-xl) var(--space-2xl);
}

.articles-list-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, var(--text-2xl));
  font-weight: 700;
  color: #E8EDF3;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid #7C3AED;
  display: inline-block;
}

.article-list-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding-block: var(--space-md);
  border-bottom: 1px solid rgba(232, 237, 243, 0.08);
  transition: padding-left 0.2s ease;
}

.article-list-item:hover {
  padding-left: var(--space-sm);
}

.article-list-cluster {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #FF6B35;
}

.article-list-link {
  font-family: var(--font-serif);
  font-size: var(--text-md);
  font-weight: 600;
  color: #E8EDF3;
  line-height: 1.35;
  transition: color 0.2s ease;
}

.article-list-link:hover,
.article-list-link:focus-visible {
  color: #7C3AED;
}

/* ── Article reading page ───────────────────────────────────────── */
.article-back {
  padding-block: var(--space-md);
  border-bottom: 1px solid #1A2230;
}

.back-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: #E8EDF3;
  opacity: 0.55;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: opacity 0.2s ease, color 0.2s ease;
}

.back-link::before {
  content: '←';
}

.back-link:hover,
.back-link:focus-visible {
  opacity: 1;
  color: #FF6B35;
}

.article-header {
  padding-block: var(--space-xl) var(--space-lg);
  border-bottom: 1px solid #1A2230;
}

.article-meta-cluster {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7C3AED;
  margin-bottom: var(--space-md);
}

.article-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #E8EDF3;
  margin-bottom: var(--space-md);
}

.article-subtitle {
  font-size: var(--text-md);
  color: #E8EDF3;
  opacity: 0.6;
  line-height: 1.6;
  max-width: 55ch;
}

/* ── Prose styles ───────────────────────────────────────────────── */
.prose {
  padding-block: var(--space-xl);
  font-family: var(--font-serif);
  font-size: var(--text-md);
  line-height: 1.8;
  color: #E8EDF3;
}

.prose h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.5vw, 1.65rem);
  font-weight: 700;
  color: #E8EDF3;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-top: 2.5em;
  margin-bottom: 0.75em;
  padding-bottom: 0.4em;
  border-bottom: 2px solid #7C3AED;
}

.prose h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 700;
  color: #E8EDF3;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-top: 2em;
  margin-bottom: 0.6em;
}

.prose h4 {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 700;
  color: #FF6B35;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 1.75em;
  margin-bottom: 0.5em;
}

.prose h5 {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 700;
  color: #7C3AED;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 1.5em;
  margin-bottom: 0.4em;
}

.prose p {
  margin-bottom: 1.4em;
  opacity: 0.9;
}

.prose p:first-child {
  font-size: 1.15em;
  opacity: 1;
}

.prose strong {
  color: #E8EDF3;
  font-weight: 700;
}

.prose em {
  color: #E8EDF3;
  opacity: 0.85;
}

.prose a {
  color: #7C3AED;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.prose a:hover {
  color: #FF6B35;
}

.prose blockquote {
  border-left: 3px solid #FF6B35;
  padding-left: var(--space-md);
  margin-block: 1.5em;
  font-style: italic;
  opacity: 0.8;
}

/* ── Footer ─────────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid #1A2230;
  margin-block-start: var(--space-xl);
  padding-block: var(--space-lg);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: flex-start;
}

@media (min-width: 768px) {
  .site-footer .container {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer-brand {
  font-family: var(--font-serif);
  font-weight: 700;
  color: #E8EDF3;
  font-size: var(--text-base);
  opacity: 0.8;
}

.footer-brand span {
  color: #7C3AED;
}

.footer-copy {
  font-size: var(--text-sm);
  color: #E8EDF3;
  opacity: 0.4;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  font-size: var(--text-sm);
  color: #E8EDF3;
  opacity: 0.45;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.footer-links a:hover {
  opacity: 1;
  color: #FF6B35;
}

/* ── Micro-interactions ─────────────────────────────────────────── */
@media (prefers-reduced-motion: no-preference) {
  .card {
    transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  }
  .card:hover {
    box-shadow: 0 8px 32px rgba(124, 58, 237, 0.12);
  }
}

/* ===== Tester fixes — CSS-only burger nav + 320px hardening (no JS) ===== */
.nav-toggle { position:absolute; width:1px; height:1px; opacity:0; pointer-events:none; }
.nav-burger {
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:2.75rem; height:2.75rem; margin-inline-start:auto;
  border-radius:var(--radius-sm); color:currentColor;
}
.nav-burger span { display:block; width:22px; height:2px; background:currentColor; border-radius:2px; transition:transform 200ms ease, opacity 160ms ease; }
.nav-toggle:focus-visible ~ .nav-burger { outline:2px solid currentColor; outline-offset:3px; }
@media (max-width:767px) {
  .site-header .container { flex-wrap:wrap; }
  .nav-burger { display:inline-flex; }
  .site-nav { flex-basis:100%; width:100%; display:none; flex-direction:column; align-items:flex-start; gap:var(--space-xs); padding-block:var(--space-xs) var(--space-2xs); }
  .nav-toggle:checked ~ .site-nav { display:flex; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(2){ opacity:0; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }
}
@media (max-width:30rem) {
  :root {
    --text-4xl: clamp(1.85rem, 1.2rem + 4.5vw, 2.75rem);
    --text-3xl: clamp(1.55rem, 1.1rem + 3.2vw, 2.25rem);
    --text-2xl: clamp(1.35rem, 1rem + 2.2vw, 1.95rem);
  }
  h1, h2, h3 { hyphens:auto; -webkit-hyphens:auto; }
}