/* Color variables */
:root {
  --background-color: #f7f4ee;
  --panel-color: #fcfaf6;
  --accent-color: #8c6b2f;
  --text-color: #333333;
  --line-color: #d8cfbf;
  --shadow-color: rgba(70, 57, 31, 0.08);
}

/* Base styles */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* Site wrapper */
.page-wrapper {
  min-height: 100vh;
  padding: 24px;
}

/* Header */
.site-header {
  max-width: 1120px;
  margin: 0 auto 56px;
  padding: 24px 32px;
  background-color: rgba(252, 250, 246, 0.92);
  border: 1px solid var(--line-color);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.site-title {
  margin: 0;
  font-size: 1.2rem;
  font-weight: normal;
  letter-spacing: 0.1em;
  color: var(--accent-color);
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.nav-link {
  padding: 10px 18px;
  border: 1px solid var(--line-color);
  color: var(--text-color);
  background-color: transparent;
  letter-spacing: 0.08em;
  font-size: 0.95rem;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: #fdfaf3;
}

.nav-link[aria-current="page"] {
  background-color: rgba(140, 107, 47, 0.12);
  border-color: var(--accent-color);
  color: var(--accent-color);
}

/* Main content */
.main-content {
  max-width: 1120px;
  margin: 0 auto;
}

.page-intro {
  margin-bottom: 32px;
  padding: 40px 56px;
  background-color: var(--panel-color);
  border: 1px solid var(--line-color);
}

.page-title {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: normal;
  letter-spacing: 0.12em;
  color: var(--accent-color);
}

.page-description {
  max-width: 720px;
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.03em;
}

.gallery-section {
  padding: 32px 40px 40px;
  background-color: var(--panel-color);
  border: 1px solid var(--line-color);
  box-shadow: 0 20px 50px var(--shadow-color);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px 24px;
}

.gallery-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gallery-thumbnail {
  aspect-ratio: 1 / 1;
  width: 100%;
  overflow: hidden;
  background-color: #efe8dc;
  border: 1px solid var(--line-color);
}

.gallery-thumbnail a {
  display: block;
  width: 100%;
  height: 100%;
}

.gallery-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.gallery-title {
  margin: 0;
  font-size: 1rem;
  font-weight: normal;
  letter-spacing: 0.04em;
}

.gallery-date {
  margin: 0;
  color: var(--accent-color);
  font-size: 0.92rem;
  letter-spacing: 0.08em;
}

.gallery-caption {
  margin: 0;
  line-height: 1.7;
}

.gallery-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.gallery-source {
  margin: 0;
  color: rgba(51, 51, 51, 0.72);
  font-size: 0.88rem;
  letter-spacing: 0.05em;
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  align-items: center;
  gap: 56px;
  padding: 56px;
  background-color: var(--panel-color);
  border: 1px solid var(--line-color);
  box-shadow: 0 20px 50px var(--shadow-color);
}

.hero-image-area {
  justify-self: center;
  width: 100%;
  max-width: 620px;
}

.hero-image {
  width: 100%;
  border: 1px solid var(--line-color);
}

.hero-text-area {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-message {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.links-hero-section,
.links-info-section,
.link-policy-section {
  background-color: var(--panel-color);
  border: 1px solid var(--line-color);
  box-shadow: 0 20px 50px var(--shadow-color);
}

.links-hero-section {
  padding: 44px;
}

.links-hero-image-frame {
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line-color);
  background: linear-gradient(135deg, #f3eee5 0%, #e7dfd1 100%);
}

.links-hero-image {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.links-info-section {
  margin-top: 0;
  padding: 36px 40px;
}

.section-heading {
  margin-bottom: 28px;
}

.section-title {
  margin: 0 0 10px;
  font-size: 1.2rem;
  font-weight: normal;
  letter-spacing: 0.08em;
  color: var(--accent-color);
}

.section-description {
  margin: 0;
  color: rgba(51, 51, 51, 0.82);
}

.link-card {
  max-width: 680px;
  padding: 24px 26px;
  border: 1px solid var(--line-color);
  background-color: rgba(255, 255, 255, 0.34);
}

.link-card + .link-card {
  margin-top: 18px;
}

.link-service-name {
  margin: 0 0 10px;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  color: var(--accent-color);
}

.link-url {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 16px;
  border: 1px solid var(--accent-color);
  background-color: rgba(140, 107, 47, 0.08);
  color: var(--accent-color);
  font-size: 0.98rem;
  letter-spacing: 0.03em;
  word-break: break-all;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.link-url:hover,
.link-url:focus {
  background-color: var(--accent-color);
  color: #fdfaf3;
}

.link-note {
  margin: 14px 0 0;
  color: rgba(51, 51, 51, 0.76);
}

.banner-link {
  display: inline-block;
}

.link-banner {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line-color);
}

.link-policy-section {
  margin-top: 36px;
  padding: 30px 40px;
}

.link-policy-text {
  max-width: 680px;
  margin: 0;
  color: rgba(51, 51, 51, 0.82);
}

.log-section {
  padding: 34px 40px;
  background-color: var(--panel-color);
  border: 1px solid var(--line-color);
  box-shadow: 0 20px 50px var(--shadow-color);
}

.log-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.log-entry {
  display: grid;
  grid-template-columns: 120px 76px minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-color);
}

.log-entry:first-child {
  padding-top: 0;
}

.log-entry:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.log-date {
  color: var(--accent-color);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.log-label {
  color: rgba(51, 51, 51, 0.62);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
}

.log-text {
  min-width: 0;
}

/* Footer */
.site-footer {
  max-width: 1120px;
  margin: 40px auto 0;
  padding: 75px 24px;
  text-align: center;
  background-color: #333333;
  border: 1px solid var(--line-color);
  box-shadow: 0 20px 50px var(--shadow-color);
}

.copyright-text {
  margin: 0;
  color: #fdfaf3;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
}

/* Tablet */
@media (max-width: 900px) {
  .site-header {
    margin-bottom: 40px;
    padding: 20px 24px;
  }

  .page-intro,
  .gallery-section,
  .links-info-section,
  .link-policy-section,
  .log-section {
    padding: 32px;
  }

  .links-hero-section {
    padding: 32px;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 20px;
  }

  .hero-section {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 36px;
  }

  .hero-text-area {
    text-align: center;
    align-items: center;
  }
}

/* Smartphone */
@media (max-width: 600px) {
  .page-wrapper {
    padding: 14px;
  }

  .site-header {
    padding: 18px;
  }

  .header-inner {
    justify-content: center;
  }

  .main-nav {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .nav-link {
    text-align: center;
  }

  .page-intro,
  .gallery-section,
  .links-info-section,
  .link-policy-section,
  .log-section {
    padding: 22px;
  }

  .page-intro {
    margin-bottom: 20px;
  }

  .links-hero-section {
    padding: 22px;
  }

  .gallery-grid {
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: 22px;
  }

  .hero-section {
    padding: 22px;
    gap: 24px;
  }

  .hero-message {
    font-size: 1rem;
  }

  .links-info-section,
  .link-policy-section {
    margin-top: 20px;
  }

  .log-entry {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 16px 0;
  }

  .link-card {
    padding: 20px 18px;
  }

  .link-url {
    width: 100%;
    justify-content: center;
  }
}