/* Global reset */
*, *::before, *::after {
  box-sizing: border-box;
}

/* Global body typography */
body {
  font-family: var(--font-body);
  font-size: var(--font-size-base, 16px);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  margin-top: 0;
  color: var(--color-text);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* nav-bar */
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 3);
  background-color: var(--color-background);
  border-bottom: var(--border-width) solid var(--border-color);
}

.nav-bar__logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: bold;
  color: var(--color-text);
}

.nav-bar__links {
  display: flex;
  gap: calc(var(--spacing-unit) * 3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-bar__links a {
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
}

/* site-header */
.site-header {
  padding-top: calc(var(--spacing-unit) * 2);
  padding-bottom: calc(var(--spacing-unit) * 2);
  border-bottom: var(--border-width) solid var(--border-color);
}

.site-header--sticky {
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header > .container-wide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: calc(var(--spacing-unit) * 2);
  flex-wrap: wrap;
}

.site-header--center > .container-wide {
  flex-direction: column;
  align-items: center;
}

.site-logo a {
  color: inherit;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: bold;
}

.site-logo.logo-small a { font-size: var(--font-size-lg); }
.site-logo.logo-medium a { font-size: var(--font-size-2xl); }
.site-logo.logo-large a { font-size: var(--font-size-3xl); }

.site-logo img {
  height: auto;
}
.site-logo.logo-small img { max-height: 28px; }
.site-logo.logo-medium img { max-height: 40px; }
.site-logo.logo-large img { max-height: 56px; }

.site-nav {
  flex: 1;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing-unit) * 2);
}

.header-btn {
  text-decoration: none;
  font-size: var(--font-size-sm);
}

.header-btn--link {
  color: inherit;
  opacity: 0.85;
}

.header-btn--primary {
  display: inline-block;
  padding: calc(var(--spacing-unit)) calc(var(--spacing-unit) * 3);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--border-radius);
  font-weight: 600;
}

/* Mobile hamburger */
.header-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  font-size: 1.5rem;
  line-height: 1;
  padding: calc(var(--spacing-unit));
}

.header-drawer {
  display: contents;
}

@media (max-width: 768px) {
  .header-hamburger {
    display: block;
  }
  .header-drawer {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--header-bg, var(--color-background));
    color: var(--header-fg, var(--color-text));
    flex-direction: column;
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 4);
    border-bottom: var(--border-width) solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    z-index: 99;
  }
  .header-drawer.is-open {
    display: flex;
  }
  .header-drawer .nav-bar__links {
    flex-direction: column;
    gap: 0;
  }
  .header-drawer .nav-bar__links li a {
    display: block;
    padding: calc(var(--spacing-unit) * 1.5) 0;
    border-bottom: 1px solid rgba(128,128,128,0.1);
  }
  .header-drawer .header-actions {
    flex-direction: column;
    align-items: stretch;
    padding-top: calc(var(--spacing-unit) * 2);
    gap: calc(var(--spacing-unit));
  }
  .header-drawer .header-btn--primary {
    text-align: center;
  }
  .site-header {
    position: relative;
  }
}

/* site-footer */
.site-footer {
  padding: calc(var(--spacing-unit) * 4) calc(var(--spacing-unit) * 3);
  background-color: var(--color-background);
  border-top: var(--border-width) solid var(--border-color);
  text-align: center;
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  opacity: 0.75;
}

/* Canvas grid — Ghost-style named column lines */
:root {
  --container-gap: calc(var(--spacing-unit) * 3);
  --content-width: 720px;
  --container-width: 1200px;
}

.gh-canvas {
  display: grid;
  grid-template-columns:
    [full-start] minmax(var(--container-gap), 1fr)
    [wide-start] minmax(0, calc((var(--container-width) - var(--content-width)) / 2))
    [main-start] min(var(--content-width), 100% - var(--container-gap) * 2) [main-end]
    minmax(0, calc((var(--container-width) - var(--content-width)) / 2)) [wide-end]
    minmax(var(--container-gap), 1fr) [full-end];
  row-gap: var(--spacing-component-gap, 1.5rem);
}

.gh-canvas > * {
  grid-column: main;
}

/* Width classes — fallback (max-width) for outside canvas, grid-column for inside */
.width-narrow {
  max-width: min(60%, 400px);
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

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

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

.width-full {
  width: 100%;
  max-width: none;
}

/* Inside gh-canvas: use grid placement, remove max-width constraints */
.gh-canvas > .width-narrow { grid-column: main; justify-self: center; }
.gh-canvas > .width-column { grid-column: main; max-width: none; padding-left: 0; padding-right: 0; }
.gh-canvas > .width-wide   { grid-column: wide; max-width: none; padding-left: 0; padding-right: 0; width: 100%; }
.gh-canvas > .width-full   { grid-column: full; max-width: none; }

/* Standalone wide container (header, footer) */
.container-wide {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-gap);
  padding-right: var(--container-gap);
}

/* hero-banner */
.hero-banner {
  border-radius: var(--border-radius);
  overflow: hidden;
}

/* Background image layout */
.hero-banner--background {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--spacing-unit) * 10) calc(var(--spacing-unit) * 4);
  background-color: var(--color-primary);
  background-size: cover;
  background-position: center;
  color: #fff;
  position: relative;
}

.hero-banner--background .hero-banner__content {
  position: relative;
  z-index: 1;
}

.hero-banner__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, var(--hero-overlay-opacity, 0.4));
}

/* Split image layout */
.hero-banner--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  min-height: 400px;
}

.hero-banner--split.image-right {
  direction: ltr;
}

.hero-banner--split.image-left {
  direction: ltr;
}

.hero-banner--split .hero-banner__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-banner--split .hero-banner__content {
  padding: calc(var(--spacing-unit) * 6);
  direction: ltr;
}

@media (max-width: 768px) {
  .hero-banner--split {
    grid-template-columns: 1fr;
  }
}

.hero-banner__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-3xl);
  margin: 0 0 calc(var(--spacing-unit) * 2) 0;
}

.hero-banner--split .hero-banner__title {
  color: var(--color-text);
}

.hero-banner__subtitle {
  font-family: var(--font-body);
  font-size: var(--font-size-lg);
  margin: 0 0 calc(var(--spacing-unit) * 4) 0;
  opacity: 0.9;
}

.hero-banner--split .hero-banner__subtitle {
  color: var(--color-text);
}

.hero-banner__buttons {
  display: flex;
  gap: calc(var(--spacing-unit) * 2);
  flex-wrap: wrap;
}

.hero-banner--background .hero-banner__buttons {
  justify-content: center;
}

.hero-banner__btn {
  display: inline-block;
  padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 4);
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-weight: bold;
  text-decoration: none;
}

.hero-banner__btn--primary {
  background-color: var(--color-primary);
  color: #fff;
}

.hero-banner--background .hero-banner__btn--primary {
  background-color: #fff;
  color: var(--color-primary);
}

.hero-banner__btn--secondary {
  background-color: transparent;
  border: 2px solid currentColor;
  color: inherit;
}

.hero-banner--split .hero-banner__btn--secondary {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* post-grid */
.post-grid {
  display: grid;
  gap: var(--spacing-component-gap);
}

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

.post-grid.columns-2 {
  grid-template-columns: repeat(2, 1fr);
}

.post-grid.columns-3 {
  grid-template-columns: repeat(3, 1fr);
}

.post-grid.columns-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .post-grid.columns-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .post-grid.columns-2,
  .post-grid.columns-3,
  .post-grid.columns-4 {
    grid-template-columns: 1fr;
  }
}

/* post-card */
.post-card {
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: var(--color-background);
  transition: box-shadow 0.2s ease;
}

.post-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.post-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.post-card__body {
  padding: calc(var(--spacing-unit) * 2);
}

.post-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  margin: 0 0 calc(var(--spacing-unit)) 0;
  color: var(--color-text);
}

.post-card__excerpt {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  opacity: 0.75;
  margin: 0;
}

.post-card__tag {
  display: inline-block;
  font-family: var(--font-small);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.post-card__meta {
  font-family: var(--font-small);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  opacity: 0.6;
  margin-top: calc(var(--spacing-unit));
}

/* post-card list variant */
.post-card--list {
  display: flex;
  flex-direction: row;
  align-items: stretch;
}

.post-card--list.image-right {
  flex-direction: row-reverse;
}

.post-card--list .post-card__image {
  width: 200px;
  min-height: 140px;
  aspect-ratio: auto;
  flex-shrink: 0;
  object-fit: cover;
}

.post-card--list .post-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (max-width: 768px) {
  .post-card--list {
    flex-direction: column;
  }
  .post-card--list.image-right {
    flex-direction: column;
  }
  .post-card--list .post-card__image {
    width: 100%;
    aspect-ratio: 16 / 9;
  }
}

/* post-grid list mode */
.post-grid--list {
  display: flex;
  flex-direction: column;
}

/* newsletter-signup */
.newsletter-signup {
  padding: calc(var(--spacing-unit) * 6) calc(var(--spacing-unit) * 4);
  background-color: var(--color-background);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius);
  text-align: center;
}

.newsletter-signup__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  color: var(--color-text);
  margin: 0 0 calc(var(--spacing-unit)) 0;
}

.newsletter-signup__description {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--color-text);
  opacity: 0.75;
  margin: 0 0 calc(var(--spacing-unit) * 3) 0;
}

.newsletter-signup__form {
  display: flex;
  gap: calc(var(--spacing-unit));
  justify-content: center;
  flex-wrap: wrap;
}

.newsletter-signup__input {
  padding: calc(var(--spacing-unit) * 1.25) calc(var(--spacing-unit) * 2);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  min-width: 240px;
}

.newsletter-signup__button {
  padding: calc(var(--spacing-unit) * 1.25) calc(var(--spacing-unit) * 3);
  background-color: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  cursor: pointer;
}

/* feature-card */
.feature-card {
  padding: calc(var(--spacing-unit) * 4);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--color-background);
  text-align: center;
}

.feature-card__icon {
  font-size: var(--font-size-2xl);
  margin-bottom: calc(var(--spacing-unit) * 2);
  color: var(--color-primary);
}

.feature-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  color: var(--color-text);
  margin: 0 0 calc(var(--spacing-unit)) 0;
}

.feature-card__description {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--color-text);
  opacity: 0.75;
  margin: 0;
}

/* card-grid */
.card-grid {
  display: grid;
  gap: var(--spacing-component-gap);
}

.card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .card-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .card-grid.cols-2,
  .card-grid.cols-3,
  .card-grid.cols-4 { grid-template-columns: 1fr; }
}

.card-grid__card {
  padding: calc(var(--spacing-unit) * 3);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: var(--color-text);
  display: block;
}

.card-grid__card--bordered {
  border: var(--border-width) solid var(--border-color);
  background: var(--color-background);
}

.card-grid__card--filled {
  background: var(--color-primary);
  color: #fff;
}

.card-grid__card--minimal {
  background: transparent;
}

.card-grid__icon {
  font-size: var(--font-size-2xl);
  margin-bottom: calc(var(--spacing-unit) * 2);
}

.card-grid__card--filled .card-grid__icon {
  opacity: 0.9;
}

.card-grid__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  margin: 0 0 calc(var(--spacing-unit)) 0;
}

.card-grid__desc {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  opacity: 0.8;
  margin: 0;
}

/* cta-banner */
.cta-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: calc(var(--spacing-unit) * 4);
  padding: calc(var(--spacing-unit) * 6) calc(var(--spacing-unit) * 4);
  background-color: var(--color-primary);
  border-radius: var(--border-radius);
  color: #fff;
  flex-wrap: wrap;
}

.cta-banner__content {
  flex: 1;
}

.cta-banner__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  margin: 0 0 calc(var(--spacing-unit)) 0;
}

.cta-banner__description {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  opacity: 0.9;
  margin: 0;
}

.cta-banner__button {
  display: inline-block;
  padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 4);
  background-color: #fff;
  color: var(--color-primary);
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-weight: bold;
  text-decoration: none;
  white-space: nowrap;
}

/* ad-block */
.ad-block {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
  background-color: var(--color-background);
  border: var(--border-width) dashed var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  text-align: center;
}

.ad-block__label {
  font-family: var(--font-small);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  opacity: 0.4;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* about-bio */
.about-bio {
  display: flex;
  gap: calc(var(--spacing-unit) * 4);
  align-items: flex-start;
  padding: calc(var(--spacing-unit) * 4);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--color-background);
  flex-wrap: wrap;
}

.about-bio__avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.about-bio__content {
  flex: 1;
  min-width: 200px;
}

.about-bio__name {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  color: var(--color-text);
  margin: 0 0 calc(var(--spacing-unit)) 0;
}

.about-bio__bio {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--color-text);
  opacity: 0.8;
  margin: 0;
  line-height: 1.7;
}

/* social-links */
.social-links {
  display: flex;
  gap: calc(var(--spacing-unit) * 2);
  flex-wrap: wrap;
  align-items: center;
}

.social-links__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius);
  background-color: var(--color-primary);
  color: #fff;
  text-decoration: none;
  font-size: var(--font-size-base);
  transition: opacity 0.2s ease;
}

.social-links__link:hover {
  opacity: 0.85;
  text-decoration: none;
}

/* image-gallery */
.image-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--spacing-unit) * 1.5);
}

.image-gallery__item {
  overflow: hidden;
  border-radius: var(--border-radius);
  aspect-ratio: 1;
}

.image-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.image-gallery__item:hover img {
  transform: scale(1.05);
}

/* image-block */
.image-block {
  display: block;
  width: 100%;
}

.image-block__image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius);
}

.image-block__caption {
  font-family: var(--font-small);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  opacity: 0.6;
  margin-top: calc(var(--spacing-unit));
  text-align: center;
}

/* text-block */
.text-block {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: 1.7;
  max-width: 70ch;
}

.text-block p {
  margin: 0 0 calc(var(--spacing-unit) * 2) 0;
}

.text-block p:last-child {
  margin-bottom: 0;
}

.text-block h2,
.text-block h3,
.text-block h4 {
  font-family: var(--font-heading);
  margin-top: calc(var(--spacing-unit) * 3);
  margin-bottom: calc(var(--spacing-unit));
}

.text-block blockquote {
  border-left: 4px solid var(--color-primary);
  margin: 0 0 calc(var(--spacing-unit) * 2) 0;
  padding-left: calc(var(--spacing-unit) * 2);
  font-family: var(--font-accent);
  font-style: italic;
  color: var(--color-text);
  opacity: 0.85;
}

/* spacer */
.spacer {
  display: block;
  width: 100%;
}

/* divider */
.divider {
  display: block;
  width: 100%;
  border: none;
  border-top: var(--border-width) solid var(--border-color);
  margin: var(--spacing-component-gap) 0;
}