/* ================================================================
   株式会社 蒼興業 — TOTAL RENOVATION HP
   Design: Blueprint / Dark Technical Theme
   ================================================================ */

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

:root {
  --bg-black: #000000;
  --bg-dark: #070709;
  --bg-card: #0c0c10;
  --bg-card-hover: #111118;
  --border: #1a1a24;
  --border-light: #252530;
  --blue: #2a6fdb;
  --blue-dim: #1a3f78;
  --blue-glow: #3d8bff;
  --blue-pale: rgba(42, 111, 219, 0.08);
  --gold: #c8a84e;
  --text-primary: #e8e8ef;
  --text-secondary: #8888a0;
  --text-muted: #555566;
  --grid-color: rgba(42, 111, 219, 0.06);
  --grid-color-strong: rgba(42, 111, 219, 0.12);
  --font-en: 'Inter', 'Roboto Mono', monospace;
  --font-jp: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-mono: 'Roboto Mono', 'Courier New', monospace;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-jp);
  background: var(--bg-black);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.8;
  letter-spacing: 0.04em;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
}

/* ── GRID BACKGROUND OVERLAY ── */
.section-grid-bg,
.hero-grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 60px 60px;
}

.section-grid-bg::after,
.hero-grid-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-color-strong) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color-strong) 1px, transparent 1px);
  background-size: 300px 300px;
}

/* ================================================================
   SPLASH SCREEN
   ================================================================ */
.splash {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg-black);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s var(--ease-out-expo), visibility 0.8s;
}

.splash.fade-out {
  opacity: 0;
  visibility: hidden;
}

.splash-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.splash-logo-wrap {
  width: 120px;
  height: 120px;
  opacity: 0;
  transform: scale(0.6) translateY(20px);
  animation: splashLogoIn 1.2s var(--ease-out-expo) 0.3s forwards;
}

.splash-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 30px rgba(42, 111, 219, 0.3));
}

.splash-line {
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
  animation: splashLineIn 0.8s var(--ease-out-expo) 1.2s forwards;
}

.splash-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  opacity: 0;
  transform: translateY(10px);
  animation: splashTextIn 0.8s var(--ease-out-expo) 1.6s forwards;
}

.splash-text-jp {
  font-family: var(--font-jp);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--text-primary);
}

.splash-text-en {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--text-muted);
  text-transform: uppercase;
}

@keyframes splashLogoIn {
  to { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes splashLineIn {
  to { width: 200px; }
}
@keyframes splashTextIn {
  to { opacity: 1; transform: translateY(0); }
}

/* ================================================================
   HEADER
   ================================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 40px;
  height: 70px;
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform 0.6s var(--ease-out-expo), opacity 0.6s;
}

.header.visible {
  transform: translateY(0);
  opacity: 1;
}

.header-inner {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-logo-img {
  height: 42px;
  width: auto;
}

.header-logo-text {
  font-family: var(--font-jp);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--text-primary);
}

.header-nav {
  display: flex;
  gap: 36px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
  transition: color 0.3s;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--blue);
  transition: width 0.3s var(--ease-out-expo);
}

.nav-link:hover { color: var(--blue-glow); }
.nav-link:hover::after { width: 100%; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}

.hamburger span {
  display: block;
  height: 1px;
  background: var(--text-primary);
  transition: all 0.3s;
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

@media (max-width: 768px) {
  .header { padding: 0 20px; }
  .hamburger { display: flex; }
  .header-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    gap: 0;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    transform: translateY(-20px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--ease-out-expo);
  }
  .header-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-link {
    display: block;
    padding: 14px 40px;
    font-size: 0.8rem;
  }
}

/* ================================================================
   HERO / FIRST VIEW
   ================================================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-video-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg,
      rgba(0,0,0,0.5) 0%,
      rgba(0,0,0,0.2) 40%,
      rgba(0,0,0,0.4) 70%,
      rgba(0,0,0,0.9) 100%
    );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

.hero-text-wrap {
  max-width: 700px;
  background: radial-gradient(ellipse at center, rgba(8, 20, 50, 0.85) 0%, rgba(8, 20, 50, 0.55) 50%, transparent 80%);
  padding: 48px 56px;
  margin: -48px -56px;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(20px);
}

.hero-label-line {
  display: inline-block;
  width: 40px;
  height: 1px;
  background: var(--blue);
}

.hero-title {
  font-family: var(--font-jp);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

.hero-title-line {
  display: block;
  opacity: 0;
  transform: translateY(40px);
}

.hero-sub {
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 2;
  color: #e0e0e8;
  margin-bottom: 48px;
  opacity: 0;
  transform: translateY(20px);
}

.hero-data {
  display: flex;
  gap: 48px;
  opacity: 0;
  transform: translateY(20px);
}

.hero-data-item {
  display: flex;
  flex-direction: column;
}

.hero-data-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--blue-glow);
  line-height: 1;
}

.hero-data-unit {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--blue);
}

.hero-data-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 40px;
  right: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero-scroll-text {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  writing-mode: vertical-rl;
}

.hero-scroll-line {
  width: 1px;
  height: 60px;
  background: var(--text-muted);
  position: relative;
  overflow: hidden;
}

.hero-scroll-line::after {
  content: '';
  position: absolute;
  top: -60px;
  left: 0;
  width: 1px;
  height: 60px;
  background: var(--blue);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: translateY(0); }
  100% { transform: translateY(120px); }
}

/* Coordinates */
.hero-coords {
  position: absolute;
  bottom: 40px;
  left: 40px;
  z-index: 2;
  display: flex;
  gap: 24px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  opacity: 0.5;
}

@media (max-width: 768px) {
  .hero-content { padding: 0 20px; }
  .hero-data { gap: 24px; flex-wrap: wrap; }
  .hero-data-num { font-size: 1.6rem; }
  .hero-scroll { right: 20px; bottom: 20px; }
  .hero-coords { left: 20px; bottom: 20px; display: none; }
}

/* ================================================================
   SECTION COMMON
   ================================================================ */
section {
  position: relative;
  overflow: hidden;
}

.section-header {
  margin-bottom: 80px;
  position: relative;
  z-index: 1;
}

.section-index {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  display: block;
  margin-bottom: 16px;
}

.section-title {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.section-title-en {
  font-family: var(--font-en);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  line-height: 1.1;
}

.section-title-jp {
  font-family: var(--font-jp);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--text-muted);
}

.section-desc {
  font-size: 0.85rem;
  font-weight: 300;
  line-height: 2;
  color: var(--text-secondary);
  margin-top: 20px;
  max-width: 600px;
}

/* ================================================================
   SERVICE SECTION
   ================================================================ */
.service {
  padding: 160px 0;
  background: var(--bg-dark);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.service-card {
  background: var(--bg-card);
  padding: 48px 40px;
  position: relative;
  transition: background 0.4s;
  opacity: 0;
  transform: translateY(30px);
}

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

.service-card::before {
  content: attr(data-index);
  position: absolute;
  top: 16px;
  right: 20px;
  font-family: var(--font-mono);
  font-size: 4rem;
  font-weight: 700;
  color: rgba(42, 111, 219, 0.04);
  line-height: 1;
  pointer-events: none;
}

.service-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.service-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--blue);
  letter-spacing: 0.1em;
}

.service-divider {
  width: 24px;
  height: 1px;
  background: var(--border-light);
}

.service-label-en {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.service-name {
  font-family: var(--font-jp);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.service-tagline {
  font-family: var(--font-jp);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--blue-glow);
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}

.service-text {
  font-size: 0.8rem;
  font-weight: 300;
  line-height: 1.9;
  color: var(--text-secondary);
}

.service-card-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), transparent);
  transition: width 0.6s var(--ease-out-expo);
}

.service-card:hover .service-card-line {
  width: 100%;
}

@media (max-width: 768px) {
  .service { padding: 100px 0; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { padding: 32px 24px; }
}

/* ================================================================
   WORKS / 施工事例 SECTION — カルーセル
   ================================================================ */
.works {
  padding: 160px 0;
  background: var(--bg-black);
}

/* カルーセルラッパー */
.works-carousel-wrap {
  position: relative;
  z-index: 1;
}

/* カルーセルのオーバーフロー制御コンテナ */
.works-carousel-viewport {
  overflow: hidden;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}

.works-carousel-viewport:active {
  cursor: grabbing;
}

/* カード横並びトラック */
.works-carousel-track {
  display: flex;
  gap: 28px;
  transition: transform 0.5s var(--ease-out-expo);
  will-change: transform;
}

/* カード個別スタイル */
.work-card {
  flex: 0 0 calc(50% - 14px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color 0.4s, transform 0.4s var(--ease-out-expo), opacity 0.5s;
  opacity: 0.45;
  transform: scale(0.97);
  min-width: 0;
}

.work-card.active-card {
  opacity: 1;
  transform: scale(1);
  border-color: var(--blue-dim);
}

.work-card:hover {
  border-color: var(--blue-dim);
}

.work-card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.work-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out-expo);
  filter: brightness(0.85);
}

.work-card.active-card .work-card-img,
.work-card:hover .work-card-img {
  transform: scale(1.03);
  filter: brightness(1);
}

.work-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  padding: 16px;
}

.work-card-category {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-primary);
  background: rgba(42, 111, 219, 0.3);
  backdrop-filter: blur(10px);
  padding: 4px 12px;
  border: 1px solid rgba(42, 111, 219, 0.3);
}

.work-card-body {
  padding: 28px 28px 24px;
}

.work-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.work-card-area {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.pin-icon::before {
  content: '📍';
  font-size: 0.6rem;
}

.work-card-date {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
}

.work-card-title {
  font-family: var(--font-jp);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.work-card-desc {
  font-size: 0.78rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.work-card-footer {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.work-card-duration {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

/* ── カルーセル ナビゲーション ── */
.works-carousel-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 40px;
  position: relative;
  z-index: 1;
}

/* ドット インジケーター */
.works-carousel-dots {
  display: flex;
  gap: 10px;
  align-items: center;
}

.works-dot {
  width: 24px;
  height: 2px;
  background: var(--border-light);
  cursor: pointer;
  transition: background 0.3s, width 0.3s var(--ease-out-expo);
  border: none;
  padding: 0;
}

.works-dot.active {
  width: 48px;
  background: var(--blue);
}

/* 前後ボタン */
.works-carousel-btns {
  display: flex;
  gap: 12px;
}

.works-carousel-btn {
  width: 48px;
  height: 48px;
  border: 1px solid var(--border-light);
  background: var(--bg-card);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: border-color 0.3s, color 0.3s, background 0.3s;
  cursor: pointer;
}

.works-carousel-btn:hover {
  border-color: var(--blue);
  color: var(--blue-glow);
  background: var(--bg-card-hover);
}

.works-carousel-btn:disabled {
  opacity: 0.25;
  pointer-events: none;
}

/* カウンター表示 */
.works-carousel-counter {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
}

.works-carousel-counter .current {
  color: var(--blue-glow);
  font-size: 0.9rem;
}

/* ── アニメーション入場 ── */
.works-carousel-wrap.animate-in .work-card {
  animation: cardsSlideIn 0.7s var(--ease-out-expo) both;
}

.works-carousel-wrap.animate-in .work-card:nth-child(1) { animation-delay: 0ms; }
.works-carousel-wrap.animate-in .work-card:nth-child(2) { animation-delay: 100ms; }
.works-carousel-wrap.animate-in .work-card:nth-child(3) { animation-delay: 200ms; }
.works-carousel-wrap.animate-in .work-card:nth-child(4) { animation-delay: 300ms; }

@keyframes cardsSlideIn {
  from { opacity: 0; transform: translateX(40px) scale(0.96); }
  to   { opacity: 0.45; transform: translateX(0) scale(0.97); }
}

.works-carousel-wrap.animate-in .work-card.active-card {
  animation: activeCardIn 0.7s var(--ease-out-expo) 80ms both;
}

@keyframes activeCardIn {
  from { opacity: 0; transform: translateX(40px) scale(0.96); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}

/* モバイル */
@media (max-width: 768px) {
  .works { padding: 100px 0; }

  .works-carousel-viewport {
    /* コンテナのpaddingを超えて左端まで伸ばす */
    margin: 0 -20px;
    padding: 0 20px;
  }

  .work-card {
    flex: 0 0 calc(85vw);
  }

  .works-carousel-nav {
    margin-top: 28px;
  }

  .works-carousel-btn {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}

/* ================================================================
   CONTACT SECTION
   ================================================================ */
.contact {
  padding: 160px 0;
  background: var(--bg-dark);
}

.contact-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 60px;
  align-items: flex-start;
}

.contact-info {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
}

.contact-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-info-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--blue);
}

.contact-info-value {
  font-family: var(--font-jp);
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-primary);
  letter-spacing: 0.06em;
}

.contact-tel {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 300;
  letter-spacing: 0.08em;
}

.contact-info-note {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 20px 48px;
  border: 1px solid var(--blue);
  color: var(--text-primary);
  font-family: var(--font-jp);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  transition: all 0.4s var(--ease-out-expo);
  position: relative;
  overflow: hidden;
}

.contact-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out-expo);
  z-index: 0;
}

.contact-btn:hover::before { transform: scaleX(1); }

.contact-btn-text,
.contact-btn-arrow {
  position: relative;
  z-index: 1;
}

.contact-btn-arrow {
  font-size: 1.2rem;
  transition: transform 0.3s;
}

.contact-btn:hover .contact-btn-arrow { transform: translateX(4px); }

@media (max-width: 768px) {
  .contact { padding: 100px 0; }
  .contact-info { flex-direction: column; gap: 32px; }
  .contact-tel { font-size: 1.4rem; }
  .contact-btn { width: 100%; justify-content: center; padding: 18px 32px; }
}

/* ================================================================
   FOOTER
   ================================================================ */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-black);
}

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo-img {
  height: 28px;
  width: auto;
}

.footer-company {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

@media (max-width: 768px) {
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
}

/* ================================================================
   SCROLL ANIMATIONS (will be triggered by JS IntersectionObserver)
   ================================================================ */
.animate-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

/* Stagger children */
.service-card.animate-in:nth-child(1) { transition-delay: 0ms; }
.service-card.animate-in:nth-child(2) { transition-delay: 100ms; }
.service-card.animate-in:nth-child(3) { transition-delay: 200ms; }
.service-card.animate-in:nth-child(4) { transition-delay: 300ms; }
.service-card.animate-in:nth-child(5) { transition-delay: 400ms; }
.service-card.animate-in:nth-child(6) { transition-delay: 500ms; }

/* work-card の animate-in はカルーセルで管理するため削除 */