/* ============================================
   LOCARU - Main Stylesheet v2.0
   DESIGN_RULES.md v2.0 完全準拠
   Apple構造品質 + LOCARUブランドアイデンティティ
   ============================================ */

/* ──────────────────────────────────
   1. CSS VARIABLES
   ────────────────────────────────── */
:root {
  /* Colors - Core Monochrome */
  --black: #0a0a0a;
  --white: #f0ede8;
  --gray0: #111;
  --gray1: #1a1a1a;
  --gray2: #2e2e2e;
  --gray3: #555;
  --gray4: #888;
  --gray5: #aaa;
  --border: #333;
  --white-dim: rgba(240, 237, 232, 0.7);
  --white-ghost: rgba(255, 255, 255, 0.03);
  --white-line: rgba(255, 255, 255, 0.06);

  /* Typography */
  --font-heading: 'Bebas Neue', 'Arial Narrow', sans-serif;
  --font-body: 'Space Mono', 'Courier New', monospace;

  /* Spacing (8px grid) */
  --space-xs:  8px;
  --space-sm:  16px;
  --space-md:  24px;
  --space-lg:  40px;
  --space-xl:  60px;
  --space-2xl: 80px;
  --space-3xl: 100px;

  /* Transitions */
  --transition-fast: 0.2s;
  --transition-normal: 1s;
  --transition-slow: 20s;

  /* Layout */
  --nav-height: 64px;
  --section-padding-x: var(--space-xl);
  --section-padding-y: var(--space-3xl);
}

/* ──────────────────────────────────
   2. RESET & BASE
   ────────────────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  overflow-x: hidden;
  cursor: crosshair;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  word-break: keep-all;
  overflow-wrap: break-word;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

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

/* Selection */
::selection {
  background: var(--gray3);
  color: var(--white);
}

::-moz-selection {
  background: var(--gray3);
  color: var(--white);
}

/* Focus visible (accessibility) */
:focus-visible {
  outline: 1px solid var(--white);
  outline-offset: 4px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--border); }

/* ──────────────────────────────────
   3. NAVIGATION
   ────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px var(--space-lg);
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  letter-spacing: 0.3em;
  color: var(--white);
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

.nav-links li a,
.nav-links a {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray4);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links li a:hover,
.nav-links a:hover {
  color: var(--white);
}

.nav-links li a::after,
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--white);
  transition: width var(--transition-fast);
}

.nav-links li a:hover::after,
.nav-links a:hover::after {
  width: 100%;
}

/* ──────────────────────────────────
   4. HERO SECTION (変更なし — クライアント承認済み)
   ────────────────────────────────── */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 var(--section-padding-x) var(--space-2xl);
  overflow: hidden;
}

.hero-bg-text {
  position: absolute;
  top: 50%;
  left: -20px;
  transform: translateY(calc(-50% + var(--parallax-y, 0px)));
  font-family: var(--font-heading);
  font-size: clamp(120px, 20vw, 320px);
  color: var(--white-ghost);
  white-space: nowrap;
  pointer-events: none;
  letter-spacing: -0.02em;
  animation: drift var(--transition-slow) ease-in-out infinite alternate;
  aria-hidden: true;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gray4);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.eyebrow::before {
  content: '';
  display: block;
  width: var(--space-lg);
  height: 1px;
  background: var(--gray3);
}

.hero-headline {
  font-family: var(--font-heading);
  font-size: clamp(60px, 10vw, 160px);
  line-height: 0.9;
  letter-spacing: 0.02em;
  color: var(--white);
  margin-bottom: var(--space-lg);
}

.hero-headline .outline {
  display: block;
  color: transparent;
  -webkit-text-stroke: 1px var(--gray3);
}

.hero-footer-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-lg);
}

.hero-desc {
  max-width: 440px;
}

/* ──────────────────────────────────
   5. TYPOGRAPHY COMPONENTS
   ────────────────────────────────── */
.body-text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--gray4);
}

.body-text--bordered {
  border-left: 1px solid var(--gray2);
  padding-left: var(--space-md);
}

/* ──────────────────────────────────
   6. CTA BUTTON
   ────────────────────────────────── */
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--black);
  background: var(--white);
  padding: 18px var(--space-lg);
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.cta-btn:hover {
  background: var(--gray4);
  color: var(--white);
}

.cta-btn:focus-visible {
  outline: 1px solid var(--white);
  outline-offset: 4px;
}

/* ──────────────────────────────────
   7. STATS SECTION
   ────────────────────────────────── */
.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  margin: 0 var(--section-padding-x);
}

.stat {
  padding: 50px var(--space-lg);
  border-right: 1px solid var(--border);
  transition: background var(--transition-fast);
}

.stat:last-child {
  border-right: none;
}

.stat:hover {
  background: var(--gray1);
}

.stat-num {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 5vw, 4rem);
  line-height: 1;
  color: var(--white);
}

.stat-label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gray4);
  margin-top: var(--space-xs);
}

/* ──────────────────────────────────
   8. SECTION COMMON
   ────────────────────────────────── */
.section {
  border-top: 1px solid var(--border);
  padding: var(--section-padding-y) var(--section-padding-x);
  overflow: hidden;
}

/* 白背景セクション（交互パターン） */
.section--light {
  background: var(--white);
  color: #1d1d1f;
  border-top-color: rgba(0, 0, 0, 0.08);
}

.section--light .eyebrow {
  color: var(--gray3);
}

.section--light .eyebrow::before {
  background: #ccc;
}

.section--light .section-heading,
.section--light .section-subheading {
  color: #1d1d1f;
}

.section--light .body-text,
.section--light .service-title-jp,
.section--light .service-desc,
.section--light .work-meta,
.section--light .column-date,
.section--light .member-name-en,
.section--light .member-position,
.section--light .member-bio,
.section--light .news-date,
.section--light .coming-soon {
  color: #666;
}

.section--light .service-title-en,
.section--light .work-client,
.section--light .column-title,
.section--light .member-name,
.section--light .news-title {
  color: #1d1d1f;
}

.section--light .stat {
  border-right-color: rgba(0, 0, 0, 0.08);
}

.section--light .service-item,
.section--light .work-card,
.section--light .column-card,
.section--light .member-card,
.section--light .news-item {
  border-color: rgba(0, 0, 0, 0.08);
}

.section--light .service-image {
  background: #f0f0f0;
}

.section--light .work-thumbnail,
.section--light .member-photo {
  background: #e8e8e8;
}

.section--light .work-card:hover,
.section--light .column-card:hover,
.section--light .news-item:hover {
  background: #f5f5f7;
}

.section--light .service-desc,
.section--light .mission-body {
  border-left-color: #ccc;
}

.section--light .cta-banner-heading {
  color: #1d1d1f;
}

.section--light .cta-banner-text {
  color: #666;
}

.section--light .cta-btn {
  background: #1d1d1f;
  color: var(--white);
}

.section--light .cta-btn:hover {
  background: #555;
}

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(48px, 6vw, 100px);
  line-height: 0.9;
  letter-spacing: 0.02em;
  color: var(--white);
  margin-bottom: var(--space-md);
}

.section-subheading {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4vw, 64px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--white);
  margin-bottom: var(--space-lg);
}

/* ──────────────────────────────────
   9. MISSION SECTION
   ────────────────────────────────── */
.mission {
  position: relative;
  overflow: hidden;
  padding-right: 0 !important;
}

.mission-layout {
  display: grid;
  grid-template-columns: 42% 1fr;
  gap: 0;
  min-height: 70vh;
  align-items: center;
}

.mission-content {
  position: relative;
  z-index: 2;
}

.mission-heading {
  font-family: var(--font-heading);
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--white);
  margin-bottom: var(--space-lg);
}

.section--light .mission-heading {
  color: #1d1d1f;
}

.mission-body {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--gray4);
  border-left: 1px solid var(--gray2);
  padding-left: var(--space-md);
  max-width: 560px;
}

/* Mission images — 3 diagonal slots */
.mission-images {
  display: flex;
  gap: 16px;
  position: relative;
  align-self: stretch;
  margin-top: calc(var(--section-padding-y) * -1);
  margin-bottom: calc(var(--section-padding-y) * -1);
}

.mission-img-slot {
  flex: 1;
  position: relative;
  overflow: hidden;
  transform: skewX(-10deg);
  transform-origin: center center;
  background: transparent;
}

.mission-img-slot:first-child {
  margin-left: -60px;
}

.mission-img-slot:last-child {
  margin-right: -60px;
}

.mission-img-slot img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: skewX(10deg) scale(1.5);
}

.mission-img-placeholder {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) skewX(10deg);
  font-family: var(--font-body);
  font-size: 1.2rem;
  color: #999;
}

/* ──────────────────────────────────
   9.5 PHILOSOPHY PAGE
   ────────────────────────────────── */
.philosophy-value-num {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1;
  color: var(--gray3);
  margin-bottom: var(--space-sm);
}

/* ──────────────────────────────────
   10. SERVICE SECTION
   ────────────────────────────────── */
.service-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: var(--space-lg);
  overflow: hidden;
  background: var(--gray1);
}

.service-item:last-of-type {
  margin-bottom: 0;
}

.service-item--reverse {
  direction: rtl;
}

.service-item--reverse > * {
  direction: ltr;
}

.service-image {
  width: 100%;
  height: 400px;
  overflow: hidden;
  background: var(--gray0);
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-fast);
}

.service-item:hover .service-image img {
  transform: scale(1.02);
}

.service-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
}

.service-title-en {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--white);
  margin-bottom: var(--space-xs);
}

.service-title-jp {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--gray4);
  margin-bottom: var(--space-md);
}

.service-desc {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--gray4);
  border-left: 1px solid var(--gray2);
  padding-left: var(--space-md);
  margin-bottom: 32px;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray4);
  transition: color var(--transition-fast);
}

.service-link:hover {
  color: var(--white);
}

.service-link::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.service-link:hover::after {
  transform: translateX(4px);
}

/* ──────────────────────────────────
   10.5 ADVANTAGE SECTION
   ────────────────────────────────── */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.advantage-item {
  padding: var(--space-xl) clamp(1rem, 2vw, 2rem);
  border-right: 1px solid rgba(0, 0, 0, 0.08);
}

.advantage-item:last-child {
  border-right: none;
}

.advantage-num {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1;
  color: #1d1d1f;
  margin-bottom: var(--space-md);
  display: block;
}

.advantage-title {
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  font-weight: 700;
  line-height: 1.6;
  color: #1d1d1f;
  margin-bottom: var(--space-sm);
  letter-spacing: 0.02em;
  overflow-wrap: break-word;
  word-break: auto-phrase;
}

.advantage-desc {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.8;
  color: #666;
}

/* ──────────────────────────────────
   11. WORK SECTION
   ────────────────────────────────── */
.work-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
}

.work-card {
  display: block;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  transition: background var(--transition-fast);
}

.work-card:nth-child(2n) {
  border-right: none;
}

.work-card:hover {
  background: var(--gray0);
}

.work-thumbnail {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--gray1);
}

.work-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-fast);
}

.work-card:hover .work-thumbnail img {
  transform: scale(1.02);
}

.work-info {
  padding: var(--space-md) 32px 32px;
}

.work-client {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  letter-spacing: 0.05em;
  color: var(--white);
  margin-bottom: var(--space-xs);
}

.work-meta {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray4);
}

/* ──────────────────────────────────
   12. COLUMN SECTION
   ────────────────────────────────── */
.column-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
}

.column-card {
  display: block;
  border-right: 1px solid var(--border);
  padding: var(--space-lg);
  transition: background var(--transition-fast);
}

.column-card:last-child {
  border-right: none;
}

.column-card:hover {
  background: var(--gray1);
}

.column-date {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--gray4);
  margin-bottom: var(--space-sm);
}

.column-title {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--white);
}

.coming-soon {
  font-family: var(--font-body);
  font-size: 0.95rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gray4);
  text-align: center;
  padding: var(--space-2xl) 0;
}

/* ──────────────────────────────────
   13. MEMBER SECTION
   ────────────────────────────────── */
.member-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-lg);
}

.member-card {
  padding: 0;
}

.member-photo {
  width: 60%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  margin-bottom: var(--space-md);
  background: var(--gray1);
}

.member-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-fast);
}

.member-card:hover .member-photo img {
  transform: scale(1.02);
}

.member-name {
  font-family: var(--font-heading);
  font-size: 2rem;
  letter-spacing: 0.05em;
  color: var(--white);
  margin-bottom: -2px;
  line-height: 1;
}

.member-name-en {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray4);
  margin-bottom: 12px;
}

.member-position {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray4);
  margin-bottom: var(--space-sm);
}

.member-bio {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--gray4);
}

/* ──────────────────────────────────
   14. NEWS SECTION
   ────────────────────────────────── */
.news-list {
  border-top: none;
}

.news-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-lg);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
  transition: all var(--transition-fast);
}

.news-item:hover {
  background: var(--gray1);
  padding-left: var(--space-sm);
  padding-right: var(--space-sm);
  margin-left: calc(var(--space-sm) * -1);
  margin-right: calc(var(--space-sm) * -1);
}

.news-date {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--gray4);
  white-space: nowrap;
  flex-shrink: 0;
}

.news-title {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--white);
}

/* ──────────────────────────────────
   15. CTA BANNER SECTION
   ────────────────────────────────── */
.cta-banner {
  text-align: center;
  padding: var(--section-padding-y) var(--section-padding-x);
  border-top: 1px solid var(--border);
}

.cta-banner-heading {
  font-family: var(--font-heading);
  font-size: clamp(32px, 5vw, 64px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--white);
  margin-bottom: var(--space-md);
}

.cta-banner-text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--gray4);
  margin-bottom: var(--space-lg);
}

.cta-banner img {
  max-width: 400px;
  margin: 0 auto;
}

/* ──────────────────────────────────
   16. FOOTER
   ────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-md);
}

.footer-bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}

.footer-copy {
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--gray4);
}

/* ──────────────────────────────────
   17. SCROLL HINT
   ────────────────────────────────── */
.scroll-hint {
  position: fixed;
  bottom: 32px;
  right: var(--space-lg);
  font-family: var(--font-body);
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gray3);
  writing-mode: vertical-rl;
  animation: blink 2s ease infinite;
  z-index: 50;
  transition: opacity var(--transition-fast);
}

.scroll-hint--hidden {
  opacity: 0;
  pointer-events: none;
}

/* ──────────────────────────────────
   18. ANIMATIONS (3種類のみ)
   ────────────────────────────────── */
@keyframes drift {
  from { transform: translateY(-50%) translateX(-20px); }
  to   { transform: translateY(-50%) translateX(20px); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes blink {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* fadeUp trigger */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-normal) ease,
              transform var(--transition-normal) ease;
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Parallax container */
.parallax-bg {
  position: absolute;
  top: -20%;
  left: 0;
  width: 100%;
  height: 140%;
  z-index: -1;
  overflow: hidden;
}

.parallax-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  will-change: transform;
}

/* Data-driven parallax */
[data-parallax-speed] {
  will-change: transform;
  transform: translateY(var(--parallax-y, 0));
}

/* Parallax elements that also fade-up: combine both transforms */
.fade-up[data-parallax-speed].is-visible {
  transform: translateY(var(--parallax-y, 0));
}

/* Image-container parallax: move the img inside, not the container */
.service-image[data-parallax-speed],
.work-thumbnail[data-parallax-speed],
.member-photo[data-parallax-speed] {
  transform: none;
}

/* Vertical image-container parallax */
.service-image[data-parallax-speed] img,
.work-thumbnail[data-parallax-speed] img,
.member-photo[data-parallax-speed] img {
  transform: translateY(var(--parallax-y, 0)) scale(1.08);
  will-change: transform;
}

/* Horizontal parallax for mission images: move the whole container */
.mission-images[data-parallax-speed] {
  transform: translateX(var(--parallax-x, 0));
}

/* ──────────────────────────────────
   19. YOUTUBE EMBED
   ────────────────────────────────── */
.video-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
}

.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ──────────────────────────────────
   20. ACCESSIBILITY
   ────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

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

  .hero-bg-text {
    animation: none;
  }
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ──────────────────────────────────
   20.5 RESPONSIVE - NARROW DESKTOP (≤ 1280px)
   ────────────────────────────────── */
@media (max-width: 1280px) {
  .advantage-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .advantage-item:nth-child(2n) {
    border-right: none;
  }

  .advantage-item:nth-child(n+3) {
    border-top: 1px solid rgba(0, 0, 0, 0.08);
  }
}

/* ──────────────────────────────────
   21. RESPONSIVE - TABLET (≤ 1024px)
   ────────────────────────────────── */
@media (max-width: 1024px) {
  :root {
    --section-padding-x: var(--space-lg);
    --section-padding-y: var(--space-2xl);
  }

  .nav {
    padding: var(--space-sm) var(--space-md);
  }

  .nav-links {
    gap: var(--space-md);
  }

  .hero {
    padding: 0 var(--space-lg) var(--space-xl);
  }

  .stats {
    margin: 0 var(--space-lg);
  }

  .service-item {
    grid-template-columns: 1fr;
  }

  .service-item--reverse {
    direction: ltr;
  }

  .service-image {
    height: 300px;
  }

  .mission-layout {
    grid-template-columns: 1fr;
  }

  .mission-layout {
    min-height: auto;
  }

  .mission-images {
    min-height: 400px;
    margin-top: var(--space-lg);
    margin-bottom: 0;
  }

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

  .work-card {
    border-right: none;
  }

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

  .column-card:nth-child(2n) {
    border-right: none;
  }

  .column-card {
    border-bottom: 1px solid var(--border);
  }

  .column-card:nth-last-child(-n+2) {
    border-bottom: none;
  }

  .member-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .member-photo {
    width: 70%;
  }
}

/* ──────────────────────────────────
   22. RESPONSIVE - MOBILE (≤ 768px)
   ────────────────────────────────── */
@media (max-width: 768px) {
  body {
    word-break: normal;
  }

  :root {
    --section-padding-x: var(--space-md);
    --section-padding-y: var(--space-xl);
  }

  .nav {
    padding: 14px 20px;
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding: 0 var(--space-md) 48px;
  }

  .hero-footer-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .stats {
    grid-template-columns: 1fr;
    margin: 0 var(--space-md);
  }

  .stat {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 32px var(--space-md);
  }

  .stat:last-child {
    border-bottom: none;
  }

  .service-content {
    padding: 32px var(--space-md);
  }

  .mission-images {
    min-height: 300px;
    gap: 8px;
    margin-top: var(--space-lg);
    margin-bottom: 0;
    overflow: hidden;
  }

  .mission-img-slot:first-child {
    margin-left: -20px;
  }

  .mission-img-slot:last-child {
    margin-right: -20px;
  }

  .column-list {
    grid-template-columns: 1fr;
  }

  .column-card {
    border-right: none;
  }

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

  .advantage-item {
    border-right: none;
    border-top: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  }

  .advantage-title {
    font-size: 1rem;
  }

  .advantage-item:last-child {
    border-bottom: none;
  }

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

  .member-photo {
    width: 50%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .site-footer {
    padding: var(--space-lg) var(--space-md);
  }

  .scroll-hint {
    display: none;
  }

  .news-item {
    flex-direction: column;
    gap: var(--space-xs);
  }
}

/* ──────────────────────────────────
   23. RESPONSIVE - SMALL (≤ 480px)
   ────────────────────────────────── */
@media (max-width: 480px) {
  .hero-headline {
    font-size: clamp(40px, 12vw, 60px);
  }

  .mission-heading {
    font-size: clamp(36px, 10vw, 48px);
  }

  .stat-num {
    font-size: 2.5rem;
  }

  .member-name {
    font-size: 1.5rem;
  }
}