/* ============================================================
   Frictionless Bold — Ghost Theme Stylesheet
   Dark-first. High-energy. Industrial authority.
   ============================================================ */

/* -- DESIGN TOKENS ------------------------------------------- */

:root {
  /* Color: Primary */
  --color-deep-obsidian:  #1A1A1B;
  --color-solar-octane:   #FF4F00;

  /* Color: Secondary */
  --color-slate-slate:    #4A5568;
  --color-electric-teal:  #00E5FF;
  --color-killa-bee-gold: #FFC107;

  /* Color: Neutral */
  --color-off-white:      #F7F3E9;
  --color-light-gray:     #C8C8C8;
  --color-mid-gray:       #6B7280;

  /* Semantic */
  --color-bg:             var(--color-deep-obsidian);
  --color-surface:        #1E1E1F;
  --color-surface-alt:    #252526;
  --color-fg:             var(--color-off-white);
  --color-muted:          var(--color-mid-gray);
  --color-border:         rgba(247, 243, 233, 0.08);
  --color-border-strong:  rgba(247, 243, 233, 0.18);

  /* Typography */
  --font-headline:    'Archivo Black', sans-serif;
  --font-subheadline: 'Space Grotesk', sans-serif;
  --font-body:        'Inter', sans-serif;
  --font-mono:        'Geist Mono', 'SF Mono', 'Fira Code', monospace;

  /* Spacing */
  --content-width:  720px;
  --wide-width:     1200px;
  --gap:            clamp(24px, 4vw, 64px);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
}


/* -- RESET & BASE -------------------------------------------- */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--color-electric-teal);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-solar-octane);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

::selection {
  background: var(--color-solar-octane);
  color: var(--color-off-white);
}


/* -- LAYOUT -------------------------------------------------- */

.site-main {
  min-height: 60vh;
}

.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--gap);
}

.container-wide {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 var(--gap);
}


/* -- SITE HEADER --------------------------------------------- */

.site-header {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.site-header-inner {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 var(--gap);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-logo img {
  max-height: 40px;
  width: auto;
}

.site-title-text {
  font-family: var(--font-headline);
  font-size: 24px;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--color-solar-octane);
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.site-nav a {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-fg);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}

.site-nav a:hover {
  opacity: 1;
  color: var(--color-solar-octane);
}

.site-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}


/* -- BUTTONS ------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  text-decoration: none;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-primary {
  background: var(--color-solar-octane);
  color: var(--color-off-white);
}

.btn-primary:hover {
  background: #e64600;
  color: var(--color-off-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-fg);
  border: 1px solid var(--color-border-strong);
}

.btn-outline:hover {
  border-color: var(--color-solar-octane);
  color: var(--color-solar-octane);
}


/* -- HOMEPAGE / INDEX ---------------------------------------- */

.site-hero {
  padding: clamp(60px, 10vw, 120px) 0;
  text-align: center;
}

.site-hero-title {
  font-family: var(--font-headline);
  font-size: clamp(48px, 9vw, 96px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-solar-octane);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.site-hero-description {
  font-family: var(--font-subheadline);
  font-weight: 300;
  font-size: clamp(18px, 2.5vw, 24px);
  line-height: 1.4;
  color: var(--color-muted);
  max-width: 600px;
  margin: 0 auto;
}

.post-feed {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 var(--gap) 80px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 40px;
}


/* -- POST CARD ----------------------------------------------- */

.post-card {
  background: var(--color-surface);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.post-card:hover {
  border-color: var(--color-solar-octane);
  transform: translateY(-2px);
}

.post-card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.post-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.post-card:hover .post-card-image img {
  transform: scale(1.03);
}

.post-card-content {
  padding: 24px;
}

.post-card-tag {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-solar-octane);
  margin-bottom: 10px;
  display: block;
}

.post-card-title {
  font-family: var(--font-headline);
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-fg);
  margin-bottom: 10px;
}

.post-card-title a {
  color: inherit;
}

.post-card-title a:hover {
  color: var(--color-solar-octane);
}

.post-card-excerpt {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-slate-slate);
}

.post-card-meta .sep {
  margin: 0 6px;
  opacity: 0.4;
}


/* -- FEATURED POST (first card, full-width) ------------------ */

.post-feed .post-card:first-child {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.post-feed .post-card:first-child .post-card-image {
  aspect-ratio: auto;
  min-height: 320px;
}

.post-feed .post-card:first-child .post-card-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 40px;
}

.post-feed .post-card:first-child .post-card-title {
  font-size: 28px;
}

@media (max-width: 768px) {
  .post-feed .post-card:first-child {
    grid-template-columns: 1fr;
  }
}


/* -- SINGLE POST / PAGE -------------------------------------- */

.post-template .site-main,
.page-template .site-main {
  padding-bottom: 80px;
}

.post-header {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: clamp(40px, 8vw, 100px) var(--gap) 40px;
  text-align: center;
}

.post-header-tag {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-solar-octane);
  margin-bottom: 16px;
  display: inline-block;
}

.post-header-title {
  font-family: var(--font-headline);
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-fg);
  margin-bottom: 16px;
}

.post-header-excerpt {
  font-family: var(--font-subheadline);
  font-weight: 300;
  font-size: 20px;
  line-height: 1.5;
  color: var(--color-muted);
  max-width: 580px;
  margin: 0 auto 24px;
}

.post-header-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--color-slate-slate);
}

.post-header-meta .sep {
  margin: 0 8px;
  opacity: 0.4;
}

.post-feature-image {
  max-width: var(--wide-width);
  margin: 0 auto 48px;
  padding: 0 var(--gap);
}

.post-feature-image img {
  width: 100%;
  border-radius: 4px;
}


/* -- POST CONTENT (gh-content) ------------------------------- */

.gh-content {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--gap);
  font-size: 18px;
  line-height: 1.7;
}

.gh-content > * + * {
  margin-top: 1.5em;
}

.gh-content h2 {
  font-family: var(--font-headline);
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-fg);
  margin-top: 2.5em;
}

.gh-content h3 {
  font-family: var(--font-subheadline);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.25;
  color: var(--color-fg);
  margin-top: 2em;
}

.gh-content h4 {
  font-family: var(--font-subheadline);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.3;
  color: var(--color-fg);
  margin-top: 1.8em;
}

.gh-content a {
  color: var(--color-electric-teal);
  text-decoration: underline;
  text-decoration-color: rgba(0, 229, 255, 0.3);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition-fast);
}

.gh-content a:hover {
  text-decoration-color: var(--color-electric-teal);
}

.gh-content strong {
  font-weight: 600;
  color: var(--color-fg);
}

.gh-content em {
  font-style: italic;
}

.gh-content blockquote {
  border-left: 3px solid var(--color-solar-octane);
  padding: 4px 0 4px 24px;
  margin: 2em 0;
  font-family: var(--font-subheadline);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.5;
  color: var(--color-fg);
}

.gh-content blockquote p {
  margin: 0;
}

.gh-content ul, .gh-content ol {
  padding-left: 1.5em;
}

.gh-content li + li {
  margin-top: 0.5em;
}

.gh-content hr {
  border: none;
  border-top: 1px solid var(--color-border-strong);
  margin: 3em 0;
}

.gh-content pre {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 20px 24px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-fg);
}

.gh-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-surface);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--color-electric-teal);
}

.gh-content pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  color: inherit;
  font-size: inherit;
}

.gh-content figure {
  margin: 2em 0;
}

.gh-content figcaption {
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
  margin-top: 10px;
}

/* Wide and full-width images */
.gh-content .kg-width-wide {
  max-width: var(--wide-width);
  margin-left: calc(50% - min(50vw, var(--wide-width) / 2));
  margin-right: calc(50% - min(50vw, var(--wide-width) / 2));
}

.gh-content .kg-width-full {
  max-width: none;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
}

.gh-content .kg-width-wide img,
.gh-content .kg-width-full img {
  width: 100%;
}

/* Bookmark card */
.gh-content .kg-bookmark-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}

.gh-content .kg-bookmark-container {
  display: flex;
  text-decoration: none;
  color: inherit;
}

.gh-content .kg-bookmark-content {
  flex: 1;
  padding: 20px;
}

.gh-content .kg-bookmark-title {
  font-family: var(--font-subheadline);
  font-weight: 600;
  font-size: 16px;
  color: var(--color-fg);
  margin-bottom: 6px;
}

.gh-content .kg-bookmark-description {
  font-size: 14px;
  color: var(--color-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.gh-content .kg-bookmark-metadata {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-slate-slate);
  display: flex;
  align-items: center;
  gap: 8px;
}

.gh-content .kg-bookmark-icon {
  width: 16px;
  height: 16px;
}

.gh-content .kg-bookmark-thumbnail {
  width: 200px;
  min-height: 100%;
}

.gh-content .kg-bookmark-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Callout card */
.gh-content .kg-callout-card {
  border-radius: 4px;
  padding: 20px 24px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.gh-content .kg-callout-card-grey {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

/* Button card */
.gh-content .kg-button-card {
  text-align: center;
  margin: 2em 0;
}

.gh-content .kg-btn {
  display: inline-flex;
  padding: 12px 28px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  border-radius: 4px;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.gh-content .kg-btn-accent {
  background: var(--color-solar-octane);
  color: var(--color-off-white);
}


/* -- TAG / AUTHOR ARCHIVE ------------------------------------ */

.archive-header {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: clamp(40px, 8vw, 80px) var(--gap) 40px;
  text-align: center;
}

.archive-label {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-solar-octane);
  margin-bottom: 12px;
  display: block;
}

.archive-title {
  font-family: var(--font-headline);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-fg);
  margin-bottom: 12px;
}

.archive-description {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-muted);
  max-width: 520px;
  margin: 0 auto;
}

.author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 20px;
  overflow: hidden;
  border: 2px solid var(--color-border-strong);
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}


/* -- FOOTER -------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 48px 0;
  margin-top: 80px;
}

.site-footer-inner {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 var(--gap);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.site-footer-copyright {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.site-footer-nav {
  display: flex;
  gap: 20px;
}

.site-footer-nav a {
  font-size: 13px;
  color: var(--color-muted);
  transition: color var(--transition-fast);
}

.site-footer-nav a:hover {
  color: var(--color-solar-octane);
}


/* -- PAGINATION ---------------------------------------------- */

.pagination {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 40px var(--gap) 80px;
  display: flex;
  justify-content: center;
  gap: 16px;
}

.pagination a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-fg);
  border: 1px solid var(--color-border-strong);
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.pagination a:hover {
  border-color: var(--color-solar-octane);
  color: var(--color-solar-octane);
}


/* -- ERROR PAGE ---------------------------------------------- */

.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  text-align: center;
  padding: var(--gap);
}

.error-code {
  font-family: var(--font-headline);
  font-size: clamp(80px, 15vw, 180px);
  line-height: 1;
  color: var(--color-solar-octane);
  letter-spacing: -0.02em;
}

.error-message {
  font-family: var(--font-subheadline);
  font-weight: 300;
  font-size: 22px;
  color: var(--color-muted);
  margin: 16px 0 32px;
}

.error-link {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-solar-octane);
  border: 1px solid var(--color-solar-octane);
  padding: 10px 24px;
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.error-link:hover {
  background: var(--color-solar-octane);
  color: var(--color-off-white);
}


/* -- MEMBERS / SUBSCRIPTION ---------------------------------- */

.post-access-cta {
  max-width: var(--content-width);
  margin: 40px auto;
  padding: 40px var(--gap);
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
}

.post-access-cta h2 {
  font-family: var(--font-headline);
  font-size: 24px;
  color: var(--color-fg);
  margin-bottom: 12px;
}

.post-access-cta p {
  color: var(--color-muted);
  margin-bottom: 24px;
}


/* -- RESPONSIVE ---------------------------------------------- */

@media (max-width: 768px) {
  .site-header-inner {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
  }

  .post-feed {
    grid-template-columns: 1fr;
  }

  .site-footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .gh-content .kg-bookmark-container {
    flex-direction: column;
  }

  .gh-content .kg-bookmark-thumbnail {
    width: 100%;
    height: 200px;
  }
}

@media (max-width: 480px) {
  .site-header-actions {
    gap: 8px;
  }

  .btn {
    padding: 6px 14px;
    font-size: 12px;
  }
}