/* ============================================
 * COOL THEME — C.A.S.E. Inc.
 * (Cinematic Dark / Red Accent — 既存の雰囲気を踏襲)
 * ============================================ */

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-elevated: rgba(255, 255, 255, 0.05);
  --accent: #dc2626;
  --accent-hover: #ef4444;
  --accent-rgb: 220, 38, 38;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.6);
  --text-muted: rgba(255, 255, 255, 0.4);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);
  --max-width: 1200px;
  --section-padding: 120px;
  --font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-en: "Inter", sans-serif;
  --font-display: "Inter", sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --bg-primary-rgb: 10, 14, 23;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-jp), var(--font-en), sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-weight: 300;
  line-height: 1.8;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ===== NAV ===== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(var(--bg-primary-rgb), 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  text-decoration: none;
}
.nav-center {
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0 auto;
  padding: 0;
}
.nav-center a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.78rem;
  font-family: var(--font-en);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.3s;
}
.nav-center a:hover { color: var(--text-primary); }
.nav-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}
.theme-selector {
  position: relative;
  font-family: var(--font-en);
}
.theme-selector select {
  appearance: none;
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  padding: 7px 32px 7px 14px;
  cursor: pointer;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: border-color 0.3s;
}
.theme-selector select:hover { border-color: var(--accent); }
.theme-selector::after {
  content: '▾';
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--accent);
  font-size: 0.75rem;
}
.lang-toggle {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  padding: 7px 12px;
  cursor: pointer;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all 0.3s;
}
.lang-toggle:hover { border-color: var(--accent); color: var(--accent); }
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: 0.3s;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/img-000.png') center/cover no-repeat;
  opacity: 0.7;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(var(--accent-rgb), 0.1) 0%, transparent 60%),
    linear-gradient(to bottom, rgba(var(--bg-primary-rgb), 0.3) 0%, rgba(var(--bg-primary-rgb), 0.8) 100%);
}
.hero-content { position: relative; z-index: 2; padding: 0 24px; }
.hero-accent {
  width: 3px;
  height: 60px;
  background: var(--accent);
  margin: 0 auto 40px;
}
.hero-title {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(2.5rem, 6vw, 5rem);
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}
.hero-subtitle {
  font-family: var(--font-en);
  font-size: clamp(0.7rem, 1.5vw, 0.95rem);
  letter-spacing: 0.25em;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 60px;
}
.hero-tagline {
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 500;
  line-height: 1.6;
}
.hero-scroll {
  position: absolute;
  bottom: 40px;
  z-index: 2;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-family: var(--font-en);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 0.4; } 50% { opacity: 1; } }

/* ===== SECTIONS ===== */
section {
  padding: var(--section-padding) 40px;
}
.container {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section-label {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.4;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 640px;
  margin-bottom: 60px;
}
.divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin: 40px 0;
}

/* ===== AI SHIFT (NEW) ===== */
.ai-shift {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  position: relative;
  overflow: hidden;
}
.ai-shift::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(var(--accent-rgb), 0.08) 0%, transparent 50%),
    radial-gradient(circle at 10% 80%, rgba(var(--accent-rgb), 0.05) 0%, transparent 50%);
  pointer-events: none;
}
.ai-shift > .container { position: relative; z-index: 1; }
.ai-shift-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.ai-shift-headline {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.5;
  margin: 30px 0;
}
.ai-shift-headline em {
  font-style: normal;
  color: var(--accent);
}
.ai-shift-body {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 2;
  margin-bottom: 40px;
}
.ai-shift-body strong { color: var(--text-primary); font-weight: 500; }
.ai-shift-cue {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 14px 28px;
  background: rgba(var(--accent-rgb), 0.08);
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  border-radius: 100px;
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  margin-top: 10px;
}
.ai-shift-cue::before {
  content: '↑';
  color: var(--accent);
  font-weight: 700;
}

/* ===== VISION ===== */
.vision { background: var(--bg-secondary); }
.vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.vision-text .accent-border {
  border-left: 3px solid var(--accent);
  padding-left: 24px;
}
.vision-text .accent-border h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.5;
}
.vision-body {
  margin-top: 40px;
  color: var(--text-secondary);
  line-height: 2;
}
.vision-body strong {
  color: var(--accent);
  font-weight: 500;
}
.case-box {
  margin-top: 40px;
  border-left: 3px solid var(--accent);
  padding: 24px 28px;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.case-box h3 {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.case-box .case-full {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.case-box .case-full span { color: var(--accent); font-weight: 500; }
.case-box .case-jp {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 4px;
}
.vision-visual {
  position: relative;
  height: 500px;
  background: url('../images/img-005.png') center/cover no-repeat;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

/* ===== GREETING / 3-LAYER PYRAMID (NEW) ===== */
.greeting { background: var(--bg-primary); }
.greeting-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 20px;
}
.greeting-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 40px;
  position: relative;
}
.greeting-card h4 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.greeting-card h4::before {
  content: '';
  width: 3px;
  height: 24px;
  background: var(--accent);
}
.greeting-body {
  color: var(--text-secondary);
  line-height: 2;
  font-size: 0.95rem;
  margin-bottom: 32px;
  text-align: justify;
}
.greeting-profile {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.greeting-profile-img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--accent);
  flex-shrink: 0;
}
.greeting-profile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.greeting-profile-text { flex: 1; }
.greeting-profile-role {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.greeting-profile-name {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.greeting-profile-desc {
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.85;
}

/* === Pyramid === */
.pyramid-wrap {}
.pyramid-intro {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.95;
  margin-bottom: 32px;
}
.pyramid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 20px 0;
}
.pyramid-row {
  position: relative;
  padding: 18px 20px;
  text-align: center;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
}
.pyramid-row.p1 { width: 60%; border-top: 3px solid var(--accent); }
.pyramid-row.p2 { width: 80%; border-top: 3px solid var(--accent); }
.pyramid-row.p3 { width: 100%; border-top: 3px solid var(--accent); }
.pyramid-label {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 8px;
}
.pyramid-en {
  font-family: var(--font-en);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  line-height: 1.3;
}
.pyramid-jp {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ===== COMPANY ===== */
.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.info-table { width: 100%; }
.info-row {
  display: flex;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.info-row:first-child { border-top: 1px solid var(--border); }
.info-label {
  color: var(--text-muted);
  font-size: 0.9rem;
  min-width: 100px;
}
.info-value { font-weight: 400; text-align: right; }
.info-value small {
  display: block;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 300;
}
.exec-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 40px;
}
.exec-role {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.exec-name {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.exec-name-sub {
  color: var(--text-muted);
  font-size: 0.85rem;
}
.exec-card + .exec-card { margin-top: 24px; }

/* ===== GROUP / STUDIO ===== */
.group { background: var(--bg-secondary); }
.group-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.studio-card {
  border-left: 3px solid var(--accent);
  padding-left: 24px;
  margin-top: 40px;
}
.studio-card h3 {
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.studio-card .studio-catch {
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
}
.studio-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.studio-features li {
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding-left: 20px;
  position: relative;
}
.studio-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}
.studio-link {
  display: inline-block;
  margin-top: 16px;
  padding: 8px 20px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  transition: 0.3s;
}
.studio-link:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}
.studio-photos { border-radius: var(--radius-sm); overflow: hidden; }
.studio-photos img { width: 100%; height: auto; display: block; }

/* ===== EQUIPMENT ===== */
.equip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.equip-category { margin-bottom: 40px; }
.equip-cat-label {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  border-left: 3px solid var(--accent);
  padding-left: 12px;
}
.equip-item {
  font-family: var(--font-en);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.equip-item span {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-left: 12px;
  font-family: var(--font-jp);
}
.equip-note {
  margin-top: 40px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}
.equip-note strong { color: var(--accent); font-weight: 500; }
.equip-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.equip-visual img { width: 100%; height: auto; }

/* ===== WHY VERTICAL (NEW) ===== */
.why-vertical {
  background: var(--bg-secondary);
  position: relative;
}
.why-vertical::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('..//manus-storage/synthwave-grid_8071190b.png') center/cover no-repeat;
  opacity: 0.04;
}
.why-vertical > .container { position: relative; z-index: 1; }
.why-v-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 20px;
}
.why-v-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 32px 26px;
  transition: all 0.3s;
}
.why-v-card:hover {
  border-color: rgba(var(--accent-rgb), 0.4);
  transform: translateY(-4px);
}
.why-v-num {
  font-family: var(--font-en);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.why-v-num small {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-left: 4px;
}
.why-v-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.5;
}
.why-v-body {
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.85;
}
.why-v-stats {
  margin-top: 48px;
  padding: 32px;
  background: rgba(var(--accent-rgb), 0.06);
  border: 1px solid rgba(var(--accent-rgb), 0.2);
  text-align: center;
}
.why-v-stats-num {
  font-family: var(--font-en);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.why-v-stats-label {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 500;
  margin-top: 10px;
}
.why-v-stats-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 6px;
}

/* ===== SERVICES ===== */
.services { background: var(--bg-secondary); position: relative; }
.services::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/img-004.png') center/cover no-repeat;
  opacity: 0.08;
}
.services > .container { position: relative; z-index: 1; }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 36px 28px;
  transition: 0.3s;
}
.service-card:hover {
  border-color: rgba(var(--accent-rgb), 0.3);
  background: rgba(var(--accent-rgb), 0.03);
}
.service-card.ai {
  background: linear-gradient(180deg, rgba(var(--accent-rgb), 0.06) 0%, var(--bg-card) 100%);
  border-color: rgba(var(--accent-rgb), 0.25);
}
.service-icon {
  font-size: 1.5rem;
  margin-bottom: 16px;
}
.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  line-height: 1.5;
}
.service-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.8;
}
.service-card.ai .service-tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.65rem;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.14em;
  padding: 3px 10px;
  border: 1px solid var(--accent);
  border-radius: 100px;
  margin-bottom: 16px;
  text-transform: uppercase;
}

/* ===== STRENGTH ===== */
.strength { position: relative; }
.strength::before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 40%;
  background: url('../images/img-001.png') center right/contain no-repeat;
  opacity: 0.25;
}
.strength > .container { position: relative; z-index: 1; }
.strength-content { max-width: 800px; }
.strength-quote {
  border-left: 3px solid var(--accent);
  padding-left: 28px;
  margin: 40px 0;
}
.strength-quote p {
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 500;
  line-height: 1.8;
}
.strength-quote strong {
  color: var(--accent);
  font-weight: 700;
}
.strength-body {
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 40px;
}
.tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.tag {
  padding: 8px 20px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.85rem;
  border-radius: 100px;
}

/* ===== WORKS (Updated for 12 cards) ===== */
.works { background: var(--bg-secondary); }
.works-headline-stats {
  display: inline-flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 28px;
  background: rgba(var(--accent-rgb), 0.08);
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  margin-bottom: 40px;
}
.works-headline-stats strong {
  font-family: var(--font-en);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent);
}
.works-headline-stats span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.works-category-title {
  font-family: var(--font-en);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin: 56px 0 24px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.works-category-title::before {
  content: '';
  width: 36px; height: 2px;
  background: var(--accent);
}
.works-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.work-card {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  text-decoration: none;
  display: block;
  transition: all 0.3s;
}
.work-card:hover {
  border-color: rgba(var(--accent-rgb), 0.4);
  transform: translateY(-4px);
}
.work-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.65;
  transition: opacity 0.3s, transform 0.4s;
}
.work-card:hover img {
  opacity: 1;
  transform: scale(1.04);
}
.work-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 14, 23, 0.92) 0%, rgba(10, 14, 23, 0.5) 50%, transparent 100%);
  pointer-events: none;
}
.work-card-content {
  position: absolute;
  inset: auto 0 0 0;
  padding: 22px 24px;
  z-index: 1;
}
.work-card-cat {
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.work-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 4px;
  color: var(--text-primary);
}
.work-card-meta {
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 300;
  line-height: 1.55;
}
.works-note {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 40px;
}

/* ===== CTA ===== */
.cta {
  text-align: center;
  padding: 140px 40px;
  position: relative;
}
.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/img-007.png') center/cover no-repeat;
  opacity: 0.4;
}
.cta > .container { position: relative; z-index: 1; }
.cta-text {
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 500;
  line-height: 1.8;
  margin-bottom: 20px;
}
.cta-text strong {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.15em;
}
.cta-sub {
  font-family: var(--font-en);
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 60px;
}
.cta-ai-line {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 700px;
  margin: 0 auto 40px;
  line-height: 2;
}
.cta-ai-line strong { color: var(--accent); font-weight: 700; }
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 40px;
  background: var(--accent);
  color: var(--text-primary);
  border: 1px solid var(--accent);
  text-decoration: none;
  font-family: var(--font-en);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 100px;
  transition: all 0.3s;
}
.cta-button:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(var(--accent-rgb), 0.3);
}
.cta-buttons-row {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 40px;
}
.cta-button-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  text-decoration: none;
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 100px;
  transition: all 0.3s;
}
.cta-button-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.social-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 50px;
}
.social-links a {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-en);
  letter-spacing: 0.1em;
  text-decoration: none;
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: 0.3s;
}
.social-links a:hover { border-color: var(--accent); color: var(--accent); }

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--border);
  padding: 60px 40px;
}
.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.footer-company h4 {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}
.footer-company p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.8;
}
.footer-company a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s;
}
.footer-company a:hover { color: var(--text-primary); }
.footer-bottom {
  max-width: var(--max-width);
  margin: 40px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: var(--font-en);
}

/* ===== SCROLL ANIMATION ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  :root { --section-padding: 80px; }
  nav { padding: 14px 20px; }
  .nav-center { display: none; }
  .nav-hamburger { display: flex; }
  .nav-center.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(var(--bg-primary-rgb), 0.95);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  section { padding: var(--section-padding) 20px; }
  .vision-grid,
  .greeting-grid,
  .company-grid,
  .group-grid,
  .equip-grid,
  .footer-grid,
  .services-grid,
  .works-cards,
  .why-v-grid {
    grid-template-columns: 1fr;
  }
  .why-v-grid { gap: 16px; }
  .vision-visual { height: 300px; }
  .hero { padding: 0 20px; }
  .pyramid-row.p1 { width: 80%; }
  .pyramid-row.p2 { width: 90%; }
  .pyramid-row.p3 { width: 100%; }
}