/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #faf9f7;
  --color-surface: #ffffff;
  --color-text: #2c2c2c;
  --color-text-muted: #6b6b6b;
  --color-accent: #3a6e8f;
  --color-accent-hover: #2d5a78;
  --color-accent-light: #e3eef5;
  --color-border: #dde3e8;
  --color-tag-bg: #e8f2f8;
  --color-tag-text: #2d5a78;

  --font-sans: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-serif: 'Noto Serif JP', 'Hiragino Mincho ProN', serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --max-width: 860px;
  --transition: 0.2s ease;
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
}

/* SP専用改行：PCでは非表示 */
.sp-br { display: none; }

@media (max-width: 600px) {
  .sp-br { display: block; }
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%; /* iOS Safari フォント自動拡大を防止 */
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: opacity var(--transition);
}

a:hover {
  opacity: 0.75;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

main {
  flex: 1;
}

section {
  padding: var(--space-xl) 0;
}

/* ===== Header / Nav ===== */
.site-header {
  background-color: rgba(250, 249, 247, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
}

.yahoo-expert-link {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: 0.875rem;
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-accent-light);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
  opacity: 1;
}

.yahoo-expert-link:hover {
  color: var(--color-accent-hover);
  border-color: var(--color-accent);
  opacity: 1;
}

.nav-x-item {
  display: flex;
  align-items: center;
  padding-left: 16px;
  margin-left: 4px;
  border-left: 1px solid var(--color-border);
}

.nav-x-link {
  display: flex;
  align-items: center;
  color: var(--color-text-muted);
  opacity: 1;
  transition: color var(--transition);
}

.nav-x-link:hover {
  color: var(--color-accent);
  opacity: 1;
}

.header-social {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 16px;
}

.header-social-link {
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  transition: color var(--transition);
  opacity: 1;
}

.header-social-link:hover {
  color: var(--color-accent);
  opacity: 1;
}

.site-nav {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.site-nav a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.site-nav a.active,
.site-nav a:hover {
  color: var(--color-accent);
  opacity: 1;
}

/* ===== Footer ===== */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ===== Hero ===== */
.hero {
  padding: calc(var(--space-xl) * 1.5) 0 var(--space-xl);
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(160deg, #faf9f7 0%, #f0ede8 100%);
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.hero-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background-color: var(--color-accent-light);
  box-shadow: 0 0 0 4px #fff, 0 0 0 6px var(--color-border);
}

.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.hero-name {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  margin-bottom: var(--space-xs);
  line-height: 1.25;
}

.hero-tagline {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: var(--space-md);
}

.hero-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  opacity: 1;
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent-light);
  opacity: 1;
}

/* ===== Section Titles ===== */
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
  display: block;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
  display: inline-block;
}

.section-rule {
  width: 36px;
  height: 2px;
  background: var(--color-accent);
  margin: 10px 0 var(--space-lg);
  border: none;
}

/* Legacy: keep inline border style for pages that use it */
.section-title.underlined {
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--color-accent);
  margin-bottom: var(--space-md);
}

/* ===== Skills ===== */
#skills {
  background: #f0f4f8;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-sm);
}

.skill-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.skill-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.skill-card-icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
  line-height: 1;
}

.skill-card h3 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
}

.skill-tag {
  background-color: var(--color-tag-bg);
  color: var(--color-tag-text);
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid #d4e6d9;
}

/* ===== Works ===== */
.works-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.works-tab {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 16px;
  margin-bottom: -1px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}

.works-tab:hover {
  color: var(--color-accent);
}

.works-tab.is-active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.works-panel {
  display: none;
}

.works-panel.is-active {
  display: block;
}

/* Carousel (横スクロール) */
.carousel-hint {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 6px;
}

.carousel-hint span {
  animation: hintSlide 1.4s ease-in-out infinite;
}

@keyframes hintSlide {
  0%, 100% { transform: translateX(0); opacity: 0.5; }
  50% { transform: translateX(4px); opacity: 1; }
}

.works-carousel-wrap {
  position: relative;
}

.works-carousel {
  display: flex;
  gap: var(--space-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.works-carousel::-webkit-scrollbar {
  display: none;
}

.works-carousel {
  align-items: stretch;
}

.works-carousel .work-card {
  flex: 0 0 300px;
  scroll-snap-align: start;
  height: 420px;
}

.works-carousel .work-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.works-carousel .work-card-desc {
  flex: 1;
}

.works-carousel .work-card-results {
  flex: 0 0 auto;
}

.works-carousel .work-card-links {
  margin-top: auto;
  padding-top: var(--space-xs);
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: background var(--transition), color var(--transition), opacity var(--transition);
  z-index: 5;
}

.carousel-btn:hover {
  background: var(--color-accent);
  color: #fff;
}

.carousel-btn.prev {
  left: -16px;
}

.carousel-btn.next {
  right: -16px;
}

.carousel-btn[disabled] {
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 600px) {
  .carousel-btn.prev { left: 4px; }
  .carousel-btn.next { right: 4px; }
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-md);
}

.works-carousel-wrap-mobile .carousel-btn {
  display: none;
}

.work-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
}

.work-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.work-card-thumbnail {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background-color: var(--color-accent-light);
}

.work-card-body {
  padding: var(--space-sm);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.work-card-links {
  margin-top: auto;
  padding-top: var(--space-xs);
}

.work-card-title {
  font-weight: 700;
  margin-bottom: 4px;
}

.work-card-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.work-card-links {
  margin-top: var(--space-xs);
  display: flex;
  gap: var(--space-xs);
  font-size: 0.8rem;
}

.work-card-media {
  position: relative;
}

.pv-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(58, 110, 143, 0.92);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}

.pv-badge::before {
  content: '📈';
  margin-right: 2px;
  font-size: 0.9rem;
}

.pv-num {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  font-family: var(--font-serif);
}

.pv-label {
  font-size: 0.72rem;
  font-weight: 600;
  opacity: 0.85;
  letter-spacing: 0.05em;
}

.work-card-results {
  list-style: none;
  margin-top: var(--space-xs);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.work-card-results li {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  border: 1px solid #d0e4f0;
}

/* ===== Article List ===== */
.article-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.article-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  gap: var(--space-md);
  transition: box-shadow var(--transition), transform var(--transition);
}

.article-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.article-card-thumbnail {
  width: 120px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  background-color: var(--color-accent-light);
}

.article-card-body {
  flex: 1;
  min-width: 0;
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: 6px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.article-tag {
  background-color: var(--color-tag-bg);
  color: var(--color-tag-text);
  font-size: 0.75rem;
  padding: 1px 8px;
  border-radius: 999px;
}

.article-card-title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-card-excerpt {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== Pagination ===== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-lg);
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-text);
  background-color: var(--color-surface);
}

.pagination a:hover {
  background-color: var(--color-accent-light);
  opacity: 1;
}

.pagination .current {
  background-color: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

/* ===== Article Detail ===== */
.article-header {
  padding: var(--space-xl) 0 var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.article-header-meta {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.article-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.4;
}

.article-hero-image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
  background-color: var(--color-accent-light);
}

.article-body {
  padding: var(--space-lg) 0;
  font-size: 1rem;
  line-height: 1.9;
}

.article-body h2 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  margin: var(--space-lg) 0 var(--space-sm);
  padding-bottom: 4px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.article-body h3 {
  font-size: 1.1rem;
  margin: var(--space-md) 0 var(--space-xs);
  color: var(--color-text);
}

.article-body p {
  margin-bottom: var(--space-sm);
}

.article-body ul,
.article-body ol {
  margin: var(--space-sm) 0 var(--space-sm) var(--space-md);
}

.article-body li {
  margin-bottom: 4px;
}

.article-body code {
  background-color: var(--color-accent-light);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
}

.article-body pre {
  background-color: #1e1e1e;
  color: #d4d4d4;
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--space-md) 0;
  font-size: 0.9rem;
}

.article-body pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.article-body blockquote {
  border-left: 4px solid var(--color-accent);
  padding-left: var(--space-sm);
  color: var(--color-text-muted);
  margin: var(--space-md) 0;
  font-style: italic;
}

.article-footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
}

.article-nav-link {
  flex: 1;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  font-size: 0.85rem;
}

.article-nav-link.prev {
  text-align: left;
}

.article-nav-link.next {
  text-align: right;
}

.article-nav-link span {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  margin-bottom: 2px;
}

/* ===== Works background ===== */
.works-bg {
  background: #f0f4f8;
}

/* ===== Services ===== */
.services-bg {
  background: var(--color-bg);
}

.service-item {
  background: var(--color-surface);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.service-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
}

.service-item-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.service-item p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-sm);
  min-height: calc(0.875rem * 1.8 * 3);
}

.service-item .skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
}

.work-style {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
}

.work-style-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.work-style-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.work-style-list li {
  font-size: 0.9rem;
  color: var(--color-text-mid, var(--color-text-muted));
  line-height: 1.8;
  padding-left: 1.2em;
  position: relative;
}

.work-style-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.work-style-list strong {
  color: var(--color-text);
}

/* ===== Contact CTA ===== */
.contact-section {
  background: var(--color-accent);
  color: #fff;
  text-align: center;
  padding: var(--space-xl) 0;
}

.contact-section .section-label {
  color: rgba(255,255,255,0.7);
}

.contact-section .section-title {
  color: #fff;
}

.contact-section .section-rule {
  background: rgba(255,255,255,0.4);
  margin-left: auto;
  margin-right: auto;
}

.contact-section p {
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-md);
}

.btn-white {
  background: #fff;
  color: var(--color-accent);
  border-color: #fff;
}

.btn-white:hover {
  background: rgba(255,255,255,0.9);
  opacity: 1;
}

.btn-x {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}

.btn-x:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
  opacity: 1;
}

/* ===== Fade-in animation ===== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.is-visible {
  opacity: 1;
  transform: none;
}

/* ===== Utilities ===== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ===== Responsive ===== */

/* タブレット */
@media (max-width: 768px) {
  :root {
    --space-xl: 3rem;
    --space-lg: 2rem;
  }

  .container {
    padding: 0 16px;
  }

  /* ナビ：文字を小さく詰める */
  .site-nav {
    gap: 16px;
  }

  .site-nav a {
    font-size: 0.8rem;
  }

  /* Skills */
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Works */
  .works-carousel .work-card {
    flex: 0 0 260px;
  }

  /* Services */
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* スマートフォン */
@media (max-width: 600px) {
  :root {
    --space-xl: 2.5rem;
    --space-lg: 1.75rem;
    --space-md: 1.25rem;
  }

  /* ヘッダー */
  .site-header .container {
    height: 52px;
  }

  .site-logo {
    font-size: 1rem;
  }

  .site-nav {
    gap: 12px;
  }

  .site-nav a {
    font-size: 0.75rem;
  }

  .nav-x-item {
    padding-left: 10px;
    margin-left: 2px;
  }

  /* Hero */
  .hero {
    padding: 48px 0 36px;
  }

  .hero-inner {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .hero-avatar {
    width: 96px;
    height: 96px;
    margin: 0 auto;
  }

  .hero-name {
    font-size: 2rem;
  }

  .hero-tagline {
    font-size: 0.85rem;
    margin: 0 auto var(--space-md);
  }

  .hero-links {
    justify-content: center;
    flex-wrap: wrap;
  }

  /* About */
  #about p {
    font-size: 0.9rem;
  }

  /* Works タブ */
  .works-tab {
    font-size: 0.8rem;
    padding: 8px 12px;
  }

  .works-carousel .work-card {
    flex: 0 0 82vw;
  }

  .carousel-btn {
    width: 36px;
    height: 36px;
  }

  .carousel-btn.prev { left: 0; }
  .carousel-btn.next { right: 0; }

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

  .works-carousel-wrap-mobile .carousel-btn {
    display: flex;
  }

  .works-carousel-mobile {
    display: flex;
    gap: var(--space-md);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    align-items: stretch;
  }

  .works-carousel-mobile::-webkit-scrollbar {
    display: none;
  }

  .works-carousel-mobile .work-card {
    flex: 0 0 82vw;
    scroll-snap-align: start;
  }

  /* Services */
  .services-grid {
    grid-template-columns: 1fr;
  }

  .work-style {
    padding: var(--space-md);
  }

  .work-style-list li {
    font-size: 0.85rem;
  }

  /* Contact */
  .contact-section {
    padding: var(--space-lg) 0;
  }

  .contact-section .section-title {
    font-size: 1.3rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.85rem;
  }

  /* Article (blog) */
  .article-card {
    flex-direction: column;
  }

  .article-card-thumbnail {
    width: 100%;
    height: 160px;
  }

  .article-card-title {
    white-space: normal;
  }

  .article-nav {
    flex-direction: column;
  }

  .article-title {
    font-size: 1.4rem;
  }
}

/* 極小画面（iPhone SE など） */
@media (max-width: 375px) {
  .site-nav {
    gap: 8px;
  }

  .site-nav a {
    font-size: 0.7rem;
  }

  .hero-name {
    font-size: 1.8rem;
  }

  .works-carousel .work-card {
    flex: 0 0 88vw;
  }

  .works-carousel-mobile .work-card {
    flex: 0 0 88vw;
  }
}