/* ═══════════════════════════════════════════════════════════════
   BREATHWORK INSIGHTS — The X-Breath Ghost Theme
   Design: Clean, minimal, professional knowledge hub
   v1.1.0 — Brand-aligned update
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* X-Breath Brand Colours */
  --primary: #66cccc;          /* Aqua */
  --primary-hover: #50a1a1;    /* Dark Aqua */
  --primary-light: #d1f1f0;    /* Aqua 30% */
  --primary-faint: #e8f8f8;    /* Aqua 15% */
  --accent: #50a1a1;           /* Dark Aqua */
  --accent-light: #e8f8f8;     /* Aqua 15% */

  --dark: #323232;             /* Charcoal */
  --text: #323232;             /* Charcoal */
  --text-light: #707070;       /* Dark Grey */
  --text-muted: #9CA3AF;

  --bg: #FFFFFF;
  --bg-alt: #f6f6f6;           /* Light Grey */
  --bg-hero: #e8f8f8;          /* Aqua 15% */
  --border: #E5E7EB;
  --border-light: #f6f6f6;     /* Light Grey */

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --max-width: 1200px;
  --content-width: 720px;
}

/* ═══════ RESET ═══════ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-hover); }
img { max-width: 100%; height: auto; display: block; }


/* ═══════════════════════════════════════════
   NAV
   ═══════════════════════════════════════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo img {
  height: 32px;
  transition: opacity 0.2s;
}
.nav-logo img:hover { opacity: 0.8; }
.nav-logo-text {
  font-family: 'Montserrat', sans-serif;
  font-size: 18px;
  font-weight: 300;
  color: var(--dark);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-family: 'Open Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--dark); }
.nav-links a.active { color: var(--primary); }

.nav-parent-link {
  font-weight: 500 !important;
  color: var(--primary) !important;
  padding: 7px 16px;
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-sm);
  transition: all 0.2s !important;
}
.nav-parent-link:hover {
  background: var(--primary) !important;
  color: #fff !important;
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: all 0.3s;
}


/* ═══════════════════════════════════════════
   HUB HERO
   ═══════════════════════════════════════════ */
.hub-hero {
  background: var(--bg-hero);
  padding: 80px 24px 60px;
  text-align: center;
}

.hub-hero-inner {
  max-width: 720px;
  margin: 0 auto;
}

.hub-hero-label {
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 12px;
}

.hub-hero-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 300;
  color: var(--dark);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.hub-hero-subtitle {
  font-size: 17px;
  color: var(--text-light);
  line-height: 1.6;
  max-width: 560px;
  margin: 0 auto 36px;
}

.hub-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.hub-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hub-stat-number {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  font-weight: 300;
  color: var(--primary);
  letter-spacing: 0.04em;
}

.hub-stat-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 2px;
}


/* ═══════════════════════════════════════════
   CATEGORY TABS
   ═══════════════════════════════════════════ */
.hub-categories {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 64px;
  z-index: 50;
}

.hub-categories-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.hub-categories-inner::-webkit-scrollbar { display: none; }

.category-tab {
  font-family: 'Open Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  text-decoration: none;
  padding: 14px 18px;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.category-tab:hover {
  color: var(--dark);
  border-bottom-color: var(--border);
}
.category-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}


/* ═══════════════════════════════════════════
   POST GRID
   ═══════════════════════════════════════════ */
.hub-posts {
  padding: 48px 24px 64px;
}

.hub-posts-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}


/* ═══════════════════════════════════════════
   POST CARD
   ═══════════════════════════════════════════ */
.post-card {
  background: var(--bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.25s ease;
}
.post-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
  transform: translateY(-2px);
}

.post-card a {
  text-decoration: none;
  color: inherit;
  display: block;
}

.post-card-image-wrap {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-alt);
}

.post-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.post-card:hover .post-card-image { transform: scale(1.03); }

.post-card-no-image {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}
.post-card-no-image svg { width: 48px; height: 48px; }

.post-card-content {
  padding: 20px;
}

.post-card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 10px;
}

.post-card-title {
  font-family: 'Open Sans', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.35;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.post-card-excerpt {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.55;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-meta {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.post-card-dot { font-size: 10px; }


/* ═══════════════════════════════════════════
   SINGLE POST
   ═══════════════════════════════════════════ */
.post-full {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.post-full-header {
  max-width: var(--content-width);
  margin: 60px auto 36px;
  text-align: center;
}

.post-full-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
  text-decoration: none;
}
.post-full-tag:hover { background: var(--primary); color: #fff; }

.post-full-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(28px, 4.5vw, 42px);
  font-weight: 300;
  color: var(--dark);
  letter-spacing: 0.04em;
  line-height: 1.2;
  margin-bottom: 20px;
}

.post-full-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-light);
  flex-wrap: wrap;
}

.post-full-meta-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

.post-full-meta-author { font-weight: 500; color: var(--dark); }
.post-full-meta-sep { color: var(--text-muted); }

.post-full-image {
  max-width: 960px;
  margin: 0 auto 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.post-full-image img {
  width: 100%;
  height: auto;
}
.post-full-image figcaption {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
  padding: 0 24px;
}

/* Post Content */
.post-full-content {
  max-width: var(--content-width);
  margin: 0 auto 60px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
}

.post-full-content h2 {
  font-family: 'Open Sans', sans-serif;
  font-size: 26px;
  font-weight: 400;
  color: var(--dark);
  margin: 48px 0 16px;
  letter-spacing: 0;
}

.post-full-content h3 {
  font-family: 'Open Sans', sans-serif;
  font-size: 21px;
  font-weight: 700;
  color: var(--dark);
  margin: 36px 0 12px;
}

.post-full-content p { margin-bottom: 20px; }

.post-full-content blockquote {
  border-left: 3px solid var(--primary);
  padding: 4px 0 4px 24px;
  margin: 28px 0;
  font-style: italic;
  color: var(--text-light);
}

.post-full-content ul, .post-full-content ol {
  margin: 16px 0 24px 24px;
}
.post-full-content li { margin-bottom: 8px; }

/* Koenig Editor — required Ghost width classes */
.kg-width-wide {
  position: relative;
  width: 85vw;
  min-width: 100%;
  max-width: 1040px;
  margin-left: calc(50% - 42.5vw);
  margin-right: calc(50% - 42.5vw);
}
.kg-width-full {
  position: relative;
  width: 100vw;
  left: 50%;
  margin-left: -50vw;
}
.kg-width-wide img,
.kg-width-full img {
  width: 100%;
}

.post-full-content img {
  border-radius: var(--radius-md);
  margin: 28px auto;
}

.post-full-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.post-full-content a:hover { color: var(--primary-hover); }

.post-full-content hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 40px 0;
}

.post-full-content code {
  font-size: 14px;
  background: var(--bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.post-full-content pre {
  background: var(--dark);
  color: #e0e0f0;
  padding: 20px 24px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 24px 0;
}
.post-full-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
}

/* Content Gate */
.content-gate {
  text-align: center;
  padding: 48px 24px;
  background: var(--primary-faint);
  border-radius: var(--radius-lg);
  margin: 40px auto;
  max-width: var(--content-width);
}
.content-gate h3 {
  font-family: 'Open Sans', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}
.content-gate p {
  color: var(--text-light);
  margin-bottom: 24px;
}

/* Author Card */
.post-author-card {
  max-width: var(--content-width);
  margin: 0 auto 60px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px;
  background: var(--bg-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.post-author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.post-author-info h4 {
  font-family: 'Open Sans', sans-serif;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}
.post-author-info h4 a { color: var(--dark); }
.post-author-info h4 a:hover { color: var(--primary); }
.post-author-info p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.5;
}


/* ═══════════════════════════════════════════
   RELATED POSTS
   ═══════════════════════════════════════════ */
.related-posts {
  background: var(--bg-alt);
  padding: 60px 24px;
  border-top: 1px solid var(--border);
}

.related-posts-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.related-posts-heading {
  font-family: 'Open Sans', sans-serif;
  font-size: 24px;
  font-weight: 400;
  color: var(--dark);
  margin-bottom: 28px;
}


/* ═══════════════════════════════════════════
   ARCHIVE HERO (Tag / Author)
   ═══════════════════════════════════════════ */
.archive-hero {
  background: var(--bg-hero);
  padding: 80px 24px 48px;
  text-align: center;
}

.archive-hero-inner {
  max-width: 600px;
  margin: 0 auto;
}

.archive-author-image {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--bg);
  box-shadow: var(--shadow-sm);
}

.archive-hero-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 8px;
}

.archive-hero-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 300;
  color: var(--dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.archive-hero-desc {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.6;
}


/* ═══════════════════════════════════════════
   PAGE TEMPLATE
   ═══════════════════════════════════════════ */
.page-full {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}


/* ═══════════════════════════════════════════
   NEWSLETTER
   ═══════════════════════════════════════════ */
.hub-newsletter {
  background: var(--primary-faint);
  padding: 64px 24px;
  text-align: center;
  border-top: 1px solid var(--border);
}

.hub-newsletter-inner {
  max-width: 520px;
  margin: 0 auto;
}

.hub-newsletter h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 28px;
  font-weight: 300;
  color: var(--dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.hub-newsletter p {
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: 24px;
}

.newsletter-form {
  display: flex;
  gap: 10px;
  max-width: 440px;
  margin: 0 auto;
}

.newsletter-form input[type="email"] {
  flex: 1;
  padding: 12px 16px;
  font-family: 'Open Sans', sans-serif;
  font-size: 15px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--dark);
  outline: none;
  transition: border-color 0.2s;
}
.newsletter-form input[type="email"]:focus {
  border-color: var(--primary);
}
.newsletter-form input[type="email"]::placeholder {
  color: var(--text-muted);
}

.newsletter-form button {
  font-family: 'Open Sans', sans-serif;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 24px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}
.newsletter-form button:hover {
  background: var(--primary-hover);
}

.newsletter-note {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 12px;
}

.newsletter-subscribed {
  font-size: 15px;
  color: var(--primary);
  font-weight: 500;
}


/* ═══════════════════════════════════════════
   PAGINATION
   ═══════════════════════════════════════════ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.pagination-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
}
.pagination-link:hover { color: var(--primary-hover); }

.pagination-info {
  font-size: 13px;
  color: var(--text-muted);
}


/* ═══════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════ */
.btn {
  display: inline-block;
  font-family: 'Open Sans', sans-serif;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-hover);
  color: #fff;
}


/* ═══════════════════════════════════════════
   ERROR PAGE
   ═══════════════════════════════════════════ */
.error-page {
  text-align: center;
  padding: 120px 24px 80px;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.error-code {
  font-family: 'Montserrat', sans-serif;
  font-size: 72px;
  font-weight: 300;
  color: var(--primary-light);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: 0.08em;
}

.error-page h1 {
  font-family: 'Open Sans', sans-serif;
  font-size: 28px;
  font-weight: 400;
  color: var(--dark);
  margin-bottom: 12px;
}

.error-page p {
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: 28px;
  max-width: 420px;
}


/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */
.site-footer {
  background: var(--dark);
  color: #fff;
  padding: 60px 24px 32px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-brand {
  margin-bottom: 36px;
}

.footer-logo {
  height: 28px;
  margin-bottom: 12px;
  filter: brightness(0) invert(1);
}

.footer-tagline {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}

.footer-links {
  display: flex;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  margin-bottom: 10px;
  transition: color 0.2s;
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}


/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */

/* Tablet */
@media (max-width: 900px) {
  .hub-posts-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .footer-links { gap: 48px; }
}

/* Mobile */
@media (max-width: 640px) {
  /* Nav */
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 16px 24px 20px;
    gap: 0;
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
    width: 100%;
  }
  .nav-links a:last-child { border-bottom: none; }
  .nav-parent-link {
    border: none !important;
    padding: 12px 0 !important;
    text-align: left;
  }
  .nav-parent-link:hover {
    background: none !important;
    color: var(--primary-hover) !important;
  }

  /* Hero */
  .hub-hero { padding: 60px 20px 44px; }
  .hub-hero-subtitle { font-size: 15px; }
  .hub-stats { gap: 24px; }
  .hub-stat-number { font-size: 20px; }

  /* Categories */
  .hub-categories-inner { padding: 0 16px; }
  .category-tab { font-size: 13px; padding: 12px 14px; }

  /* Grid */
  .hub-posts { padding: 32px 16px 48px; }
  .hub-posts-inner {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* Post */
  .post-full-header { margin: 40px auto 28px; }
  .post-full-content { font-size: 16px; }
  .post-full-content h2 { font-size: 22px; }
  .post-full-content h3 { font-size: 19px; }

  /* Newsletter */
  .hub-newsletter { padding: 48px 20px; }
  .newsletter-form {
    flex-direction: column;
  }
  .newsletter-form input[type="email"],
  .newsletter-form button {
    width: 100%;
  }

  /* Author card */
  .post-author-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  /* Footer */
  .footer-links {
    flex-direction: column;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  /* Archive */
  .archive-hero { padding: 60px 20px 36px; }

  /* Related */
  .related-posts { padding: 40px 16px; }
}

/* Ghost Membership Form States */
.email-form .success { color: var(--primary); font-size: 14px; }
.email-form .error { color: #e74c3c; font-size: 14px; }
.email-form .loading { opacity: 0.6; pointer-events: none; }

/* Ghost Portal Button Override (match theme) */
[data-portal] { cursor: pointer; }