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

:root {
  --color-bg: #f5f2ed;
  --color-text: #1a1a1a;
  --color-muted: #888;
  --color-border: #d0cbc4;
  --max-width: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

/* ── Header ── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
}

.site-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.site-title a {
  text-decoration: none;
  color: inherit;
}

nav {
  display: flex;
  gap: 2rem;
}

nav a {
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  font-weight: 500;
  transition: opacity 0.2s;
}

nav a:hover {
  opacity: 0.4;
}

nav a.active {
  border-bottom: 1.5px solid var(--color-text);
  padding-bottom: 2px;
}

/* ── Sections ── */
section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 5rem 2rem;
  border-bottom: 1px solid var(--color-border);
}

section:last-child {
  border-bottom: none;
}

h2 {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  font-weight: 500;
  color: var(--color-muted);
  margin-bottom: 3rem;
}

/* ── Works grid ── */
.works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.work-item {
  aspect-ratio: 16 / 9;
  background: var(--color-border);
  display: block;
  transition: opacity 0.2s;
}

.work-item:hover {
  opacity: 0.7;
}

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

.work-item--letterbox {
  background: #000;
}

.work-item--letterbox img {
  object-fit: contain;
}

.work-item {
  position: relative;
  overflow: hidden;
}

.work-item-title {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 1rem 1.25rem;
  background: linear-gradient(to top, rgba(0,0,0,0.5) 0%, transparent 60%);
  color: #fff;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  opacity: 0;
  transition: opacity 0.25s;
}

.work-item:hover .work-item-title {
  opacity: 1;
}

/* ── Blog grid ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

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

.blog-thumb {
  aspect-ratio: 16 / 9;
  background: var(--color-border);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

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

.blog-info {
  padding: 0 0.1rem;
}

.blog-title {
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

.blog-card a:hover .blog-title {
  opacity: 0.6;
}

.blog-date {
  font-size: 0.75rem;
  color: var(--color-muted);
  letter-spacing: 0.03em;
}

/* ── About ── */
.about-layout {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
}

.about-icon {
  flex-shrink: 0;
  width: 160px;
}

.about-icon img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: var(--color-border);
}

.about-text {
  max-width: 600px;
}

.about-title {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
}

.about-text p {
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--color-text);
}

.about-text p + p {
  margin-top: 1.25em;
}

/* ── Contact ── */
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-item {
  display: flex;
  align-items: baseline;
  gap: 2rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-item:first-child {
  border-top: 1px solid var(--color-border);
}

.contact-label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-muted);
  width: 4rem;
  flex-shrink: 0;
}

.contact-item--social {
  gap: 2.5rem;
  border-bottom: none;
}

.contact-social-link {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-text);
  text-decoration: none;
  transition: opacity 0.2s;
}

.contact-social-link:hover {
  opacity: 0.4;
}

.contact-link {
  font-size: 0.9375rem;
  color: var(--color-text);
  text-decoration: none;
  transition: opacity 0.2s;
}

.contact-link:hover {
  opacity: 0.4;
}

.contact-email {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: opacity 0.2s;
}

.contact-email:hover {
  opacity: 0.4;
}

.copy-hint {
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--color-muted);
}

.contact-email.copied {
  opacity: 1;
}

.contact-email.copied .copy-hint::after {
  content: 'コピーしました';
  color: var(--color-text);
}

.contact-email.copied .copy-hint {
  font-size: 0;
}

.contact-email.copied .copy-hint::after {
  font-size: 0.7rem;
}

@media (max-width: 600px) {
  .about-layout {
    flex-direction: column;
    gap: 1.5rem;
  }

  .about-icon {
    width: 100px;
  }
}

/* ── Footer ── */
footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.75rem;
  color: var(--color-muted);
  letter-spacing: 0.05em;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.25rem;
  }

  nav {
    gap: 1.25rem;
  }

  section {
    padding: 3.5rem 1.25rem;
  }

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

  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

@media (max-width: 480px) {

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