/* ===== Header ===== */
.site-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg);
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

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

.site-logo:hover {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  gap: var(--space-8);
  align-items: center;
}

.site-nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: color var(--transition-fast);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-text-bright);
}

.mobile-menu-toggle {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.mobile-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-bright);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-menu-toggle.is-open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-toggle.is-open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 99;
  padding: var(--space-8) var(--space-6);
}

.mobile-nav.is-open {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.mobile-nav a {
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mobile-nav a:hover {
  color: var(--color-text-bright);
}

@media (max-width: 768px) {
  .site-nav { display: none; }
  .mobile-menu-toggle { display: flex; }
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-footer a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.site-footer a:hover {
  color: var(--color-accent);
}

/* ===== Gallery Grid ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

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

@media (max-width: 560px) {
  .gallery-grid { grid-template-columns: 1fr; }
}

.gallery-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  cursor: pointer;
  aspect-ratio: 1;
}

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

.gallery-card:hover img {
  transform: scale(1.05);
}

.gallery-card__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-6) var(--space-4) var(--space-4);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-card:hover .gallery-card__overlay {
  opacity: 1;
}

.gallery-card__title {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  color: var(--color-text-bright);
  line-height: 1.3;
}

/* ===== Poetry Cards ===== */
.poetry-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .poetry-list { grid-template-columns: 1fr; }
}

.poetry-card {
  display: flex;
  gap: var(--space-4);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: background var(--transition-fast);
}

.poetry-card:hover {
  background: var(--color-bg-card-hover);
}

.poetry-card__image {
  width: 160px;
  min-height: 160px;
  flex-shrink: 0;
  object-fit: cover;
}

.poetry-card__body {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.poetry-card__title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  color: var(--color-text-bright);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.poetry-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.5;
}

/* ===== Detail Pages ===== */
.art-detail {
  text-align: center;
}

.art-detail__title {
  margin-bottom: var(--space-4);
}

.art-detail__date {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-8);
}

.art-detail__image-wrapper {
  max-width: 900px;
  margin: 0 auto;
  cursor: zoom-in;
}

.art-detail__image-wrapper img {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

/* Poetry detail */
.poetry-detail {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.poetry-detail__image-wrapper {
  max-width: 700px;
  margin: 0 auto var(--space-8);
  cursor: zoom-in;
}

.poetry-detail__image-wrapper img {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.poetry-detail__title {
  text-align: center;
  margin-bottom: var(--space-2);
}

.poetry-detail__date {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-8);
}

.poetry-detail__body {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-text);
}

.poetry-detail__body p {
  margin-bottom: var(--space-6);
}

/* ===== Lightbox ===== */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 1000;
  cursor: zoom-out;
  justify-content: center;
  align-items: center;
  padding: var(--space-8);
}

.lightbox.is-open {
  display: flex;
}

.lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* ===== Homepage Hero ===== */
.hero {
  text-align: center;
  padding: var(--space-24) 0 var(--space-16);
}

.hero__title {
  font-size: var(--text-5xl);
  margin-bottom: var(--space-4);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto var(--space-12);
}

@media (max-width: 768px) {
  .hero {
    padding: var(--space-12) 0 var(--space-8);
  }
  .hero__title {
    font-size: var(--text-3xl);
  }
}

/* ===== Section Headers ===== */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-8);
}

.section-header__link {
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.section-header__link:hover {
  color: var(--color-accent-hover);
}

/* ===== About Page ===== */
.about-content {
  max-width: var(--container-narrow);
  margin: 0 auto;
  font-size: var(--text-lg);
  line-height: 1.8;
}

.about-content a {
  color: var(--color-accent);
}

.about-content a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.about-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-6);
  margin: var(--space-8) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.about-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-8) 0;
}

/* ===== 404 Page ===== */
.error-page {
  text-align: center;
  padding: var(--space-32) 0;
}

.error-page__code {
  font-size: 8rem;
  font-family: var(--font-serif);
  color: var(--color-border);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.error-page__message {
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

.error-page__link {
  color: var(--color-accent);
}