/* ============================================
   ARCUS Corporate Site — style.css
   Art Redesign: Architectural Minimalism
   Mobile-first (375px → 768px → 1024px → 1280px)
   ============================================ */

:root {
  --color-primary: #2563eb;
  --color-primary-light: #60a5fa;
  --color-primary-dark: #1d4ed8;
  --color-accent: #2563eb;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-text: #1e293b;
  --color-text-sub: #64748b;
  --color-border: #e2e8f0;
  --color-footer: #0f172a;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-mono: 'Space Grotesk', monospace;
  --font-size-hero: clamp(100px, 20vw, 300px);
  --font-size-section: clamp(60px, 10vw, 140px);
  --font-size-h2: clamp(28px, 4vw, 48px);
  --font-size-body: 1rem;
  --space-section: clamp(100px, 12vw, 200px);
  --space-block: 80px;
  --space-element: 40px;
  --space-tight: 16px;
  --max-width: 1200px;
  --max-text: 640px;
  --radius: 4px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 20px 40px rgba(23, 23, 23, 0.08);
  --transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: var(--font-size-body);
  line-height: 2.0;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Hide default cursor on desktop when custom cursor active */
@media (pointer: fine) {
  body.cursor-active,
  body.cursor-active a,
  body.cursor-active button {
    cursor: none !important;
  }
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---- Utility ---- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 40px;
  }
}

@media (min-width: 1280px) {
  .container {
    padding: 0 24px;
  }
}

/* ============================================
   Page Wipe Transition — White curtain slides up
   ============================================ */
.page-wipe {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #ffffff;
  transform: scaleY(1);
  transform-origin: bottom;
  animation: wipeOut 0.9s 0.1s cubic-bezier(0.77, 0, 0.175, 1) forwards;
  pointer-events: none;
}

@keyframes wipeOut {
  0% {
    transform: scaleY(1);
  }
  100% {
    transform: scaleY(0);
  }
}

/* ============================================
   Custom Cursor (desktop only)
   ============================================ */
.custom-cursor {
  display: none;
}

@media (pointer: fine) {
  .custom-cursor {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10000;
    pointer-events: none;
    mix-blend-mode: difference;
  }

  .custom-cursor__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    transform: translate(-50%, -50%);
    transition: width 0.3s var(--ease-out-expo),
                height 0.3s var(--ease-out-expo),
                background 0.3s var(--ease-out-expo);
    will-change: transform;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .custom-cursor.is-hover .custom-cursor__dot {
    width: 48px;
    height: 48px;
    background: #fff;
    mix-blend-mode: difference;
  }

  .custom-cursor__label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-heading);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #000;
    opacity: 0;
    transition: opacity 0.3s ease;
    white-space: nowrap;
  }

  .custom-cursor.is-hover .custom-cursor__label {
    opacity: 1;
  }
}

/* ============================================
   Scroll Animations — Split Reveal
   ============================================ */

/* Fade-up with clip reveal */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--ease-out-expo),
              transform 0.9s var(--ease-out-expo);
}

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

/* Stagger support */
.fade-up[data-stagger="1"] { transition-delay: 0.1s; }
.fade-up[data-stagger="2"] { transition-delay: 0.2s; }
.fade-up[data-stagger="3"] { transition-delay: 0.3s; }
.fade-up[data-stagger="4"] { transition-delay: 0.4s; }

/* Split reveal — text slides from behind clip mask */
.reveal-line {
  display: block;
  overflow: hidden;
}

.reveal-line__inner {
  display: block;
  transform: translateY(110%);
  transition: transform 0.9s var(--ease-out-expo);
}

.reveal-line.is-visible .reveal-line__inner,
.is-visible .reveal-line .reveal-line__inner {
  transform: translateY(0);
}

/* Stagger for hero lines — Phase 4: サブコピー出現（2.5s〜） */
.hero__tagline-en .reveal-line__inner { transition-delay: 2.5s; }
.hero__tagline-ja .reveal-line__inner { transition-delay: 3.0s; }

/* Reveal wrap for section titles */
.reveal-wrap {
  overflow: hidden;
  display: block;
}

.reveal-text {
  display: block;
  transform: translateY(100%);
  transition: transform 0.9s var(--ease-out-expo);
}

.is-visible .reveal-text {
  transform: translateY(0);
}

/* Section title pattern — extreme size contrast */
.section-title {
  margin-bottom: var(--space-element);
}

.section-title__en {
  font-family: var(--font-heading);
  font-size: var(--font-size-section);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.04em;
  color: var(--color-text);
  background: linear-gradient(135deg, var(--color-text) 0%, #475569 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title__ja {
  display: block;
  margin-top: 8px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-sub);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ============================================
   Header
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition),
              box-shadow var(--transition),
              backdrop-filter var(--transition);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-border);
}

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

.site-header__logo {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-text);
}

/* Desktop nav */
.site-header__nav {
  display: none;
  align-items: center;
  gap: 36px;
}

@media (min-width: 1024px) {
  .site-header__nav {
    display: flex;
  }
}

.site-header__nav a {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text);
  position: relative;
  padding-bottom: 2px;
}

.site-header__nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-primary);
  transition: width var(--transition);
}

.site-header__nav a:hover::after {
  width: 100%;
}

.site-header__cta {
  display: none;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 10px 24px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}

.site-header__cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

@media (min-width: 1024px) {
  .site-header__cta {
    display: inline-block;
  }
}

/* is-current nav indicator */
.site-header__nav a.is-current::after {
  width: 100%;
}

.site-header__nav a.is-current {
  color: var(--color-primary);
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 32px;
  height: 32px;
  gap: 6px;
  z-index: 1100;
}

@media (min-width: 1024px) {
  .hamburger {
    display: none;
  }
}

.hamburger__line {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger.is-active .hamburger__line:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.hamburger.is-active .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger.is-active .hamburger__line:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* Mobile overlay */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 1050;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.mobile-nav.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav a {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-text);
  transition: color var(--transition);
}

.mobile-nav a:hover {
  color: var(--color-primary);
}

.mobile-nav__cta {
  margin-top: 16px;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  padding: 14px 40px;
  background: var(--color-primary);
  color: #fff !important;
  border-radius: var(--radius);
}

/* ============================================
   Hero — Text Mask with background-clip
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-bg);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0;
  pointer-events: none;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 20px;
}

/* Hero title — Phase 2-3 cinematic animation */
.hero__mask-text {
  font-family: var(--font-heading);
  font-size: var(--font-size-hero);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.04em;
  color: var(--color-text);
  -webkit-text-fill-color: var(--color-text);
  margin-bottom: 24px;
}

/* Phase 3: テキストマスク（画像）に切り替え */
.hero__mask-text.is-masked {
  background-image: url('../images/hero.jpg');
  background-size: cover;
  background-position: center;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* Phase 3: clip-pathワイプで画像マスクを左→右に表示 */
.hero__mask-text.is-mask-animating {
  animation: maskReveal 0.8s cubic-bezier(0.77, 0, 0.175, 1) forwards;
}

@keyframes maskReveal {
  from { clip-path: inset(0 100% 0 0); }
  to { clip-path: inset(0 0 0 0); }
}

/* Phase 2: 各文字の出現アニメーション */
.hero-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(80px) scale(1.3);
  filter: blur(8px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: calc(var(--char-i) * 0.12s + 0.5s);
}

.hero-char.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

.hero__tagline-en {
  font-family: var(--font-heading);
  font-size: clamp(24px, 4vw, 48px);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 12px;
}

.hero__tagline-ja {
  font-family: var(--font-body);
  font-size: clamp(14px, 2vw, 20px);
  font-weight: 300;
  color: var(--color-text-sub);
  letter-spacing: 0.1em;
  line-height: 1.6;
}

/* Scroll indicator — line grows animation (Phase 4: 3.2s後にフェードイン) */
.hero__scroll {
  position: absolute;
  bottom: 40px;
  right: 40px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--color-text-sub);
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 0.8s ease;
  transition-delay: 3.2s;
}

.is-loaded .hero__scroll {
  opacity: 1;
}

.hero__scroll-line {
  width: 1px;
  height: 0;
  background: var(--color-text-sub);
  animation: lineGrow 2s ease-in-out infinite;
}

@keyframes lineGrow {
  0% {
    height: 0;
    opacity: 1;
  }
  50% {
    height: 60px;
    opacity: 1;
  }
  100% {
    height: 60px;
    opacity: 0;
  }
}

/* ============================================
   Marquee — Flowing text strip
   ============================================ */
.marquee {
  overflow: hidden;
  border-top: 1px solid #dbeafe;
  border-bottom: 1px solid #dbeafe;
  padding: 20px 0;
  background: linear-gradient(90deg, var(--color-bg) 0%, #f0f9ff 50%, var(--color-bg) 100%);
  position: relative;
}

.marquee__track {
  display: flex;
  white-space: nowrap;
  animation: marqueeScroll 30s linear infinite;
  will-change: transform;
}

.marquee--reverse .marquee__track {
  animation-direction: reverse;
}

.marquee__text {
  font-family: var(--font-heading);
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--color-text-sub);
  text-transform: uppercase;
  flex-shrink: 0;
}

@keyframes marqueeScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-33.333%);
  }
}

/* ============================================
   Numbers — Bento Grid
   ============================================ */
.numbers {
  background: linear-gradient(180deg, #f0f9ff 0%, #e0f2fe 50%, #f0f9ff 100%);
  padding: var(--space-section) 0;
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
  padding-bottom: calc(var(--space-section) + 40px);
}

/* Subtle arch SVG pattern behind numbers */
.numbers::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  height: 80%;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 300' fill='none'%3E%3Cpath d='M50 300 L50 120 Q50 20 200 20 Q350 20 350 120 L350 300' stroke='%232563eb' stroke-width='1' fill='none' opacity='0.06'/%3E%3Cpath d='M100 300 L100 140 Q100 60 200 60 Q300 60 300 140 L300 300' stroke='%232563eb' stroke-width='0.5' fill='none' opacity='0.04'/%3E%3C/svg%3E") center/contain no-repeat;
  pointer-events: none;
}

.bento-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: var(--space-element);
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {
  .bento-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
  }
}

.bento-card {
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.bento-card--large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  padding: 48px 32px;
  border-radius: 16px;
}

@media (min-width: 768px) {
  .bento-card--large {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    padding: 60px 40px;
  }
}

.bento-card--large .numbers__value {
  font-size: clamp(60px, 10vw, 100px);
}

.bento-card--small {
  background: var(--color-bg);
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .bento-card--small {
    padding: 40px 32px;
  }
}

.bento-card--wide {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
  border-radius: 16px;
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .bento-card--wide {
    grid-column: 2 / 4;
    padding: 40px 32px;
  }
}

.numbers__value {
  font-family: var(--font-heading);
  font-size: clamp(48px, 7vw, 80px);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -0.03em;
  transform: scale(0.5);
  filter: blur(4px);
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.numbers__value.is-visible {
  transform: scale(1);
  filter: blur(0);
}

/* Bounce animation class added via JS */
.numbers__value.is-bounced span {
  display: inline-block;
  animation: numBounce 0.5s var(--ease-out-expo);
}

@keyframes numBounce {
  0% { transform: scale(1); }
  40% { transform: scale(1.08); }
  70% { transform: scale(0.97); }
  100% { transform: scale(1); }
}

.numbers__suffix {
  font-size: 0.5em;
  font-weight: 600;
}

.numbers__label {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-sub);
  letter-spacing: 0.04em;
}

/* ============================================
   Service — Editorial Full-bleed
   ============================================ */
.service-editorial {
  padding: var(--space-section) 0;
  background: var(--color-bg);
  background-image: radial-gradient(circle, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* Service Cards — 画像40% テキスト60% */
.svc-cards {
  display: flex;
  flex-direction: column;
  gap: 60px;
  margin-top: var(--space-element);
  padding: 0 20px;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

.svc-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  overflow: hidden;
  transition: box-shadow 0.4s ease, border-color 0.4s ease;
}

.svc-card:hover {
  box-shadow: 0 20px 50px -15px rgba(37, 99, 235, 0.1);
  border-color: var(--color-primary-light);
}

@media (min-width: 768px) {
  .svc-card {
    grid-template-columns: 38% 1fr;
    gap: 0;
  }
  .svc-card:nth-child(even) {
    direction: rtl;
  }
  .svc-card:nth-child(even) > * {
    direction: ltr;
  }
}

.svc-card__visual {
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

@media (min-width: 768px) {
  .svc-card__visual {
    aspect-ratio: auto;
    min-height: 100%;
  }
}

.svc-card__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.svc-card:hover .svc-card__visual img {
  transform: scale(1.05);
}

.svc-card__body {
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .svc-card__body {
    padding: 48px 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

.svc-card__num {
  font-family: var(--font-heading);
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  letter-spacing: -0.04em;
  display: block;
  margin-bottom: 8px;
}

.svc-card__title {
  font-family: var(--font-heading);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.svc-card__subtitle {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-sub);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.svc-card__desc {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.8;
  max-width: 440px;
  margin-bottom: 20px;
}

.svc-card__points {
  list-style: none;
  padding: 0;
  margin: 0 0 20px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.svc-card__points li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 20px;
  position: relative;
  line-height: 1.6;
}

.svc-card__points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.6;
}

.svc-card__price {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-sub);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.svc-card__price strong {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
}

.svc-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  transition: gap 0.3s ease;
}

.svc-card__link:hover {
  gap: 14px;
}

/* Service link shared (legacy) */
.service__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  transition: gap var(--transition);
}

.service__link span {
  display: inline-block;
  transition: transform var(--transition);
}

.service__link:hover {
  gap: 14px;
}

.service__link:hover span {
  transform: translateX(6px);
}

/* ============================================
   Why ARCUS — Offset Cards
   ============================================ */
.why-offset {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 30%, #f0f9ff 70%, #ffffff 100%);
  padding: var(--space-section) 0;
  position: relative;
}

.offset-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: var(--space-element);
}

@media (min-width: 768px) {
  .offset-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding: 0;
  }

  .offset-cards > :nth-child(1) {
    transform: translateY(0);
  }
  .offset-cards > :nth-child(2) {
    transform: translateY(60px);
  }
  .offset-cards > :nth-child(3) {
    transform: translateY(-30px);
  }
}

.offset-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 40px 32px;
  transition: transform var(--transition), box-shadow var(--transition);
}

@media (min-width: 768px) {
  .offset-card {
    padding: 48px 36px;
  }
}

.offset-card:hover {
  box-shadow: var(--shadow-hover);
}

@media (min-width: 768px) {
  .offset-card:nth-child(1):hover {
    transform: translateY(-8px);
  }
  .offset-card:nth-child(2):hover {
    transform: translateY(52px);
  }
  .offset-card:nth-child(3):hover {
    transform: translateY(-38px);
  }
}

/* カード1: アーチモチーフ */
.offset-card:nth-child(1) {
  background: linear-gradient(135deg, #eff6ff 0%, #ffffff 60%);
  border-color: #dbeafe;
}
.offset-card:nth-child(1)::before {
  content: '';
  position: absolute;
  right: -30px;
  top: -30px;
  width: 200px;
  height: 250px;
  border: 3px solid rgba(37, 99, 235, 0.1);
  border-radius: 100px 100px 0 0;
  border-bottom: none;
  transform: rotate(15deg);
}
.offset-card:nth-child(1)::after {
  content: '';
  position: absolute;
  right: 0;
  top: -10px;
  width: 140px;
  height: 180px;
  border: 2px solid rgba(37, 99, 235, 0.06);
  border-radius: 70px 70px 0 0;
  border-bottom: none;
  transform: rotate(15deg);
}

/* カード2: 斜めストライプ */
.offset-card:nth-child(2) {
  background:
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 40px,
      rgba(37, 99, 235, 0.03) 40px,
      rgba(37, 99, 235, 0.03) 42px
    ),
    linear-gradient(180deg, #f0f9ff 0%, #ffffff 100%);
  border-color: #dbeafe;
}

/* カード3: ドットパターン */
.offset-card:nth-child(3) {
  background:
    radial-gradient(circle, rgba(37, 99, 235, 0.08) 1px, transparent 1px),
    linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
  background-size: 24px 24px, 100% 100%;
  border-color: #dbeafe;
}

.offset-card__num {
  position: relative;
  z-index: 1;
  font-family: var(--font-heading);
  font-size: clamp(48px, 8vw, 100px);
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}

.offset-card__title {
  position: relative;
  z-index: 1;
  font-family: var(--font-body);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  line-height: 1.4;
}

.offset-card__desc {
  position: relative;
  z-index: 1;
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 2.0;
  max-width: 500px;
}

/* ============================================
   News — Editorial 2-column
   ============================================ */
.news {
  padding: var(--space-section) 0;
  background: repeating-linear-gradient(-45deg, transparent, transparent 60px, rgba(37, 99, 235, 0.015) 60px, rgba(37, 99, 235, 0.015) 62px), var(--color-bg);
}

.news-editorial {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

@media (min-width: 768px) {
  .news-editorial {
    grid-template-columns: 1fr 2fr;
    gap: 80px;
  }
}

.news-editorial__title {
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .news-editorial__title {
    position: sticky;
    top: 100px;
  }
}

.news-editorial__right {
  /* contains news list + view all link */
}

.news__list {
  display: flex;
  flex-direction: column;
}

.news__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 0;
  padding-left: 0;
  border-bottom: 1px dashed var(--color-border);
  transition: padding-left var(--transition), opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  opacity: 0;
  transform: translateX(-20px);
}

.news__item.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Accent bar on hover */
.news__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--transition);
}

.news__item:hover::before {
  transform: scaleY(1);
}

.news__item:hover {
  padding-left: 16px;
}

.news__item:first-child {
  border-top: 1px dashed var(--color-border);
}

@media (min-width: 768px) {
  .news__item {
    flex-direction: row;
    align-items: center;
    gap: 24px;
    padding: 28px 0;
    padding-left: 0;
  }

  .news__item:hover {
    padding-left: 20px;
  }
}

.news__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.news__date {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-sub);
  letter-spacing: 0.06em;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.news__tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  border-radius: 2px;
  white-space: nowrap;
}

.news__tag--notice {
  background: #f0f9ff;
  color: #0369a1;
}

.news__tag--achievement {
  background: #f0fdf4;
  color: #15803d;
}

.news__tag--media {
  background: #fefce8;
  color: #a16207;
}

.news__tag--service {
  background: #faf5ff;
  color: #7c3aed;
}

.news__tag--recruit {
  background: #fff1f2;
  color: #e11d48;
}

.news__title {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.6;
}

.news__more {
  margin-top: var(--space-element);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  transition: gap var(--transition);
}

.news__more:hover {
  gap: 14px;
}

/* ============================================
   Contact CTA — Blue gradient + arch motif
   ============================================ */
.contact-cta {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 50%, #bfdbfe 100%);
}

/* Arch motif right side */
.contact-cta::before {
  content: '';
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  width: 400px;
  height: 500px;
  border: 3px solid rgba(37, 99, 235, 0.15);
  border-radius: 200px 200px 0 0;
  border-bottom: none;
}

.contact-cta::after {
  content: '';
  position: absolute;
  right: 10%;
  top: 50%;
  transform: translateY(-50%);
  width: 280px;
  height: 350px;
  border: 2px solid rgba(37, 99, 235, 0.08);
  border-radius: 140px 140px 0 0;
  border-bottom: none;
}

.contact-cta__bg {
  display: none;
}

.contact-cta__bg img {
  display: none;
}

.contact-cta__overlay {
  display: none;
}

.contact-cta__content {
  position: relative;
  z-index: 1;
  text-align: left;
  max-width: 60%;
}

@media (max-width: 767px) {
  .contact-cta__content {
    text-align: center;
    max-width: 100%;
  }
  .contact-cta::before {
    right: -10%;
    width: 250px;
    height: 300px;
  }
  .contact-cta::after {
    right: -5%;
    width: 180px;
    height: 220px;
  }
}

.contact-cta__heading {
  font-family: var(--font-body);
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 12px;
}

.contact-cta__sub {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-sub);
  letter-spacing: 0.1em;
  margin-bottom: 48px;
}

.contact-cta__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 18px 48px;
  background: var(--color-primary);
  color: #ffffff;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  transition: background var(--transition),
              color var(--transition),
              transform var(--transition),
              gap var(--transition),
              border-color var(--transition);
}

.contact-cta__btn:hover {
  background: #1d4ed8;
  color: #fff;
  border-color: #1d4ed8;
  transform: translateY(-2px);
  gap: 16px;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  position: relative;
  background: var(--color-footer);
  color: var(--color-border);
  overflow: hidden;
}

/* Giant ARCUS watermark */
.site-footer__watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-heading);
  font-size: clamp(120px, 20vw, 280px);
  font-weight: 700;
  color: #fff;
  opacity: 0.03;
  letter-spacing: 0.1em;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}

.site-footer__arch {
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 160px;
  height: 80px;
  opacity: 0.06;
}

.site-footer__inner {
  padding: 80px 0 40px;
  position: relative;
  z-index: 1;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

@media (min-width: 768px) {
  .site-footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
  }
}

.site-footer__brand {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #fff;
  margin-bottom: 16px;
}

.site-footer__tagline {
  font-size: 13px;
  font-weight: 300;
  color: #94a3b8;
  line-height: 2.0;
  max-width: 300px;
}

.site-footer__heading {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: #94a3b8;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.site-footer__links a {
  font-size: 14px;
  font-weight: 300;
  color: var(--color-border);
  transition: color var(--transition), padding-left var(--transition);
  position: relative;
  padding-left: 0;
}

/* Dot on hover */
.site-footer__links a::before {
  content: '';
  position: absolute;
  left: -16px;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity var(--transition), left var(--transition);
}

.site-footer__links a:hover {
  color: #fff;
  padding-left: 16px;
}

.site-footer__links a:hover::before {
  opacity: 1;
  left: 0;
}

.site-footer__contact-info p {
  font-size: 14px;
  font-weight: 300;
  color: var(--color-border);
  margin-bottom: 8px;
}

.site-footer__bottom {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

@media (min-width: 768px) {
  .site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.site-footer__copy {
  font-size: 12px;
  font-weight: 300;
  color: #475569;
}

.site-footer__policy {
  font-size: 12px;
  font-weight: 300;
  color: #475569;
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition);
}

.site-footer__policy:hover {
  color: #fff;
}

/* ============================================
   Privacy Modal
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 20px;
}

.modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--color-bg);
  border-radius: var(--radius);
  max-width: 640px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 40px;
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.modal__title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
}

.modal__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-sub);
  transition: color var(--transition);
}

.modal__close:hover {
  color: var(--color-text);
}

.modal__body {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 2.0;
}

.modal__body h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin: 24px 0 8px;
}

.modal__body h3:first-child {
  margin-top: 0;
}

.modal__body p {
  margin-bottom: 12px;
}

/* ============================================
   Scroll Experience — Background color transition
   ============================================ */
body {
  --scroll-bg: #ffffff;
  background: var(--scroll-bg);
  transition: background 0.6s ease;
}

/* ============================================
   Scroll Experience — Scroll Snap (desktop only)
   ============================================ */
@media (min-width: 1024px) {
  html.scroll-snap-active {
    scroll-snap-type: y proximity;
  }

  .scroll-snap-active .hero,
  .scroll-snap-active .numbers,
  .scroll-snap-active .service-editorial,
  .scroll-snap-active .why-offset,
  .scroll-snap-active .news,
  .scroll-snap-active .contact-cta {
    scroll-snap-align: start;
  }
}

/* ============================================
   Scroll Experience — Section title scroll fade
   ============================================ */
.section-title[data-scroll-fade] {
  will-change: transform, opacity;
}

/* ============================================
   Scroll Experience — Editorial block parallax inner elements
   ============================================ */
.editorial-block__num,
.editorial-block__image {
  will-change: transform;
}

/* ============================================
   Page load animation
   ============================================ */
.page-enter {
  opacity: 0;
}

.page-enter.is-loaded {
  opacity: 1;
  transition: opacity 0.5s 0.3s ease;
}

/* ============================================
   Sub Page Hero — Text-stroke style
   ============================================ */
.sub-hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-alt);
  overflow: hidden;
  padding-top: 80px;
}

.sub-hero--short {
  min-height: 50vh;
}

.sub-hero--image {
  background: none;
}

.sub-hero__bg {
  position: absolute;
  inset: -10% 0 0 0;
  z-index: 0;
  will-change: transform;
  height: 120%;
}

.sub-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sub-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.55) 0%,
    rgba(248, 250, 252, 0.45) 50%,
    rgba(255, 255, 255, 0.4) 100%
  );
}

.sub-hero__arch {
  position: absolute;
  right: -5%;
  top: 10%;
  width: 40vw;
  height: 50vh;
  z-index: 1;
}

.sub-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.sub-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(72px, 14vw, 140px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  -webkit-text-stroke: 2px var(--color-text);
  color: transparent;
  text-shadow: none;
}

.sub-hero__sub {
  margin-top: 12px;
  font-family: var(--font-body);
  font-size: clamp(16px, 2.5vw, 20px);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.6;
  text-shadow: 0 1px 12px rgba(255, 255, 255, 0.9);
}

/* ============================================
   Service Detail Sections (services.html)
   ============================================ */
.svc-detail {
  padding: var(--space-section) 0;
  background: var(--color-bg);
}

.svc-detail--alt {
  background: var(--color-bg-alt);
}

.svc-detail__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 768px) {
  .svc-detail__grid {
    grid-template-columns: 1fr 1fr;
    gap: 60px;
  }

  .svc-detail__grid--reverse .svc-detail__image {
    order: 2;
  }

  .svc-detail__grid--reverse .svc-detail__body {
    order: 1;
  }
}

.svc-detail__image {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  aspect-ratio: 4 / 3;
}

.svc-detail__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.svc-detail__num {
  font-family: var(--font-heading);
  font-size: clamp(56px, 7vw, 80px);
  font-weight: 700;
  color: var(--color-border);
  line-height: 1;
  letter-spacing: -0.04em;
  display: block;
  margin-bottom: 8px;
}

.svc-detail__title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.svc-detail__title-ja {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-sub);
  letter-spacing: 0.06em;
  margin-top: 4px;
  margin-bottom: 20px;
}

.svc-detail__desc {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 2.0;
  margin-bottom: 24px;
}

.svc-detail__price {
  font-size: 15px;
  color: var(--color-text);
  margin-top: 20px;
}

.svc-detail__price strong {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
}

/* Process Flow (horizontal 4-step) */
.process-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: var(--space-block);
  flex-wrap: wrap;
}

.process-flow__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 100px;
}

.process-flow__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 1.5px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.process-flow__step {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.06em;
}

.process-flow__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
}

.process-flow__arrow {
  color: var(--color-border);
  display: flex;
  align-items: center;
  padding-bottom: 32px;
}

@media (max-width: 600px) {
  .process-flow {
    flex-direction: column;
    gap: 16px;
  }
  .process-flow__arrow {
    transform: rotate(90deg);
    padding-bottom: 0;
  }
}

/* Case Study Cards */
.case-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: var(--space-block);
}

@media (min-width: 600px) {
  .case-cards {
    grid-template-columns: 1fr 1fr;
  }
}

.case-card {
  padding: 32px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.svc-detail--alt .case-card {
  background: var(--color-bg);
}

.case-card__label {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.case-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.case-card__challenge {
  font-size: 14px;
  color: var(--color-text-sub);
  margin-bottom: 20px;
  line-height: 1.6;
}

.case-card__result {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.case-card__metric {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.case-card__metric small {
  font-size: 0.5em;
}

.case-card__metric-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}

/* Check List */
.check-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}

.check-list li svg {
  flex-shrink: 0;
  color: var(--color-primary);
}

/* Process Timeline (vertical) */
.process-section {
  position: relative;
  padding: var(--space-section) 0;
  overflow: hidden;
}

.process-section__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.process-section__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.process-section__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.6) 0%,
    rgba(248, 250, 252, 0.55) 50%,
    rgba(255, 255, 255, 0.6) 100%
  );
}

.process-section .container {
  position: relative;
  z-index: 1;
}

.process-timeline {
  margin-top: var(--space-block);
  position: relative;
  padding-left: 72px;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-primary-light));
  border-radius: 2px;
}

.process-timeline__item {
  position: relative;
  padding-bottom: 48px;
}

.process-timeline__item:last-child {
  padding-bottom: 0;
}

.process-timeline__num {
  position: absolute;
  left: -72px;
  top: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.process-timeline__content h3 {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 700;
  text-shadow: 0 1px 4px rgba(255, 255, 255, 0.7);
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.4;
}

.process-timeline__content p {
  font-size: 15px;
  color: var(--color-text);
  font-weight: 400;
  line-height: 2.0;
  text-shadow: 0 1px 4px rgba(255, 255, 255, 0.7);
}

/* ============================================
   About Page — Message
   ============================================ */
.message-section {
  padding: var(--space-section) 0;
  background: var(--color-bg);
}

.message {
  margin-top: var(--space-block);
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

@media (min-width: 768px) {
  .message {
    grid-template-columns: auto 1fr;
    gap: 48px;
  }
}

.message__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.message__body p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 2.0;
  margin-bottom: 20px;
}

.message__body p:last-of-type {
  margin-bottom: 32px;
}

.message__sign {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.message__sign-title {
  font-size: 12px;
  color: var(--color-text-sub);
  letter-spacing: 0.06em;
}

.message__sign-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
}

/* ============================================
   About Page — Company Table
   ============================================ */
.company-section {
  position: relative;
  padding: var(--space-section) 0;
  overflow: hidden;
}

.company-section__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.company-section__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.company-section__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.65) 0%,
    rgba(248, 250, 252, 0.6) 50%,
    rgba(255, 255, 255, 0.65) 100%
  );
}

.company-section .container {
  position: relative;
  z-index: 1;
}

.company-table {
  margin-top: var(--space-block);
  max-width: 800px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
}

.company-table table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 15px;
  line-height: 1.6;
  text-align: left;
  vertical-align: top;
}

.company-table th {
  font-weight: 500;
  color: var(--color-text-sub);
  white-space: nowrap;
  padding-right: 40px;
  width: 140px;
}

.company-table td {
  color: var(--color-text);
  font-weight: 300;
}

@media (max-width: 600px) {
  .company-table th,
  .company-table td {
    display: block;
    padding: 8px 0;
  }
  .company-table th {
    border-bottom: none;
    padding-bottom: 0;
    font-size: 13px;
  }
  .company-table td {
    padding-top: 4px;
    padding-bottom: 20px;
  }
}

/* ============================================
   About Page — Team
   ============================================ */
.team-section {
  padding: var(--space-section) 0;
  background: var(--color-bg-alt);
}

.team {
  margin-top: var(--space-block);
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

@media (min-width: 768px) {
  .team {
    grid-template-columns: 1fr 1fr;
    gap: 60px;
  }
}

.team__image {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.team__image img {
  width: 100%;
  height: auto;
}

.team__body p {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 2.0;
  margin-bottom: 16px;
}

/* ============================================
   About Page — History Timeline
   ============================================ */
.history-section {
  padding: var(--space-section) 0;
  position: relative;
  overflow: hidden;
}

.history-section__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.history-section__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.history-section__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.88) 0%,
    rgba(248, 250, 252, 0.82) 50%,
    rgba(255, 255, 255, 0.85) 100%
  );
}

.history-section .container {
  position: relative;
  z-index: 1;
}

.history-timeline {
  margin-top: var(--space-block);
  position: relative;
  padding-left: 40px;
}

.history-timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), rgba(37, 99, 235, 0.2));
}

.history-timeline__item {
  position: relative;
  padding-bottom: 44px;
  padding-left: 0;
}

.history-timeline__item:last-child {
  padding-bottom: 0;
}

.history-timeline__item::before {
  content: '';
  position: absolute;
  left: -40px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--color-primary), 0 0 12px rgba(37, 99, 235, 0.15);
}

.history-timeline__date {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.history-timeline__text {
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.7;
}

/* ============================================
   About Page — Access
   ============================================ */
.access-section {
  padding: var(--space-section) 0;
  background: var(--color-bg-alt);
}

.access {
  margin-top: var(--space-block);
}

.access__map {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.access__map iframe {
  display: block;
  width: 100%;
  min-height: 360px;
}

.access__info {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.access__info p {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--color-text-sub);
}

.access__info svg {
  flex-shrink: 0;
  color: var(--color-primary);
}

/* ============================================
   News Page — Filter Tabs
   ============================================ */
.news-page {
  padding: var(--space-section) 0;
  padding-top: 0;
  background: var(--color-bg);
}

.news-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: var(--space-element);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.news-filter__tab {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-sub);
  background: none;
  border: none;
  padding: 8px 16px;
  cursor: pointer;
  position: relative;
  transition: color var(--transition);
}

.news-filter__tab::after {
  content: '';
  position: absolute;
  bottom: -17px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity var(--transition);
}

.news-filter__tab.is-active {
  color: var(--color-primary);
}

.news-filter__tab.is-active::after {
  opacity: 1;
}

.news-filter__tab:hover {
  color: var(--color-text);
}

/* News Page List */
.news-page__list {
  display: flex;
  flex-direction: column;
}

/* News Accordion Item */
.news-accordion {
  border-bottom: 1px dashed var(--color-border);
  position: relative;
}

.news-accordion:first-child {
  border-top: 1px dashed var(--color-border);
}

/* Accent bar on hover */
.news-accordion::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--transition);
}

.news-accordion:hover::before {
  transform: scaleY(1);
}

.news-accordion__header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 0;
  padding-left: 0;
  cursor: pointer;
  transition: background var(--transition), padding-left var(--transition);
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  font-family: inherit;
}

.news-accordion:hover .news-accordion__header {
  padding-left: 16px;
}

@media (min-width: 768px) {
  .news-accordion__header {
    flex-direction: row;
    align-items: center;
    gap: 24px;
    padding: 28px 0;
    padding-left: 0;
  }

  .news-accordion:hover .news-accordion__header {
    padding-left: 20px;
  }
}

.news-accordion__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.news-accordion__date {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-sub);
  letter-spacing: 0.06em;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.news-accordion__title {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.6;
  flex: 1;
}

.news-accordion__icon {
  margin-left: auto;
  color: var(--color-text-sub);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.news-accordion.is-open .news-accordion__icon {
  transform: rotate(180deg);
}

.news-accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.news-accordion.is-open .news-accordion__body {
  max-height: 500px;
}

.news-accordion__content {
  padding: 0 16px 24px;
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 2.0;
}

/* ============================================
   Contact Page
   ============================================ */
.contact-page {
  padding: var(--space-section) 0;
  padding-top: 0;
  background: var(--color-bg);
}

.contact-page__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 60px;
}

@media (min-width: 768px) {
  .contact-page__grid {
    grid-template-columns: 1fr 1.5fr;
    gap: 80px;
  }
}

/* Contact Info (left) */
.contact-info__heading {
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 32px;
}

.contact-info__items {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-info__item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-info__item svg {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

.contact-info__label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-sub);
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}

.contact-info__value {
  display: block;
  font-size: 15px;
  font-weight: 300;
  color: var(--color-text);
  line-height: 1.6;
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-form__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact-form__label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}

.contact-form__req {
  font-size: 11px;
  color: #e11d48;
  margin-left: 4px;
}

.contact-form__input,
.contact-form__select,
.contact-form__textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 300;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.contact-form__input:focus,
.contact-form__select:focus,
.contact-form__textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.contact-form__input::placeholder,
.contact-form__textarea::placeholder {
  color: #94a3b8;
}

.contact-form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.contact-form__textarea {
  resize: vertical;
  min-height: 140px;
}

.contact-form__input.is-error,
.contact-form__select.is-error,
.contact-form__textarea.is-error {
  border-color: #e11d48;
  box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.1);
}

.contact-form__submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 16px 40px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), gap var(--transition);
  align-self: flex-start;
}

.contact-form__submit:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  gap: 16px;
}

.contact-form__submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Thank you state */
.contact-thanks {
  text-align: center;
  padding: 80px 0;
  animation: fadeInUp 0.6s ease forwards;
}

.contact-thanks__icon {
  color: var(--color-primary);
  margin-bottom: 24px;
}

.contact-thanks__title {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.contact-thanks__text {
  font-size: 16px;
  color: var(--color-text-sub);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   Magnetic Button utility class
   ============================================ */
.magnetic-btn {
  transition: transform 0.3s var(--ease-out-expo);
}

/* ============================================
   Legacy service classes (used on services.html)
   ============================================ */
.service {
  padding: var(--space-section) 0;
  background: var(--color-bg);
}

.service__list {
  margin-top: var(--space-block);
  display: flex;
  flex-direction: column;
  gap: 100px;
}

@media (min-width: 768px) {
  .service__list {
    gap: 140px;
  }
}

.service__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

@media (min-width: 768px) {
  .service__item {
    grid-template-columns: 1fr 1fr;
    gap: 60px;
  }

  .service__item:nth-child(even) .service__image {
    order: 2;
  }

  .service__item:nth-child(even) .service__body {
    order: 1;
  }
}

.service__image {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  clip-path: inset(5%);
  transition: clip-path 0.6s var(--ease-out-expo);
}

.service__item:hover .service__image {
  clip-path: inset(0%);
}

.service__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}

.service__item:hover .service__image img {
  transform: scale(1.03);
}

/* Giant semi-transparent number overlay on image */
.service__number {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-heading);
  font-size: clamp(120px, 18vw, 220px);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1;
  letter-spacing: -0.04em;
  mix-blend-mode: overlay;
  z-index: 2;
  pointer-events: none;
  transition: opacity var(--transition);
}

.service__name {
  font-family: var(--font-heading);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.service__desc {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 2.0;
  max-width: 440px;
  margin-bottom: 24px;
}

@media (min-width: 768px) {
  .service__body {
    position: relative;
  }
}

/* ============================================
   Legacy Why ARCUS (kept for potential sub-page use)
   ============================================ */
.why {
  background: var(--color-bg-alt);
  padding: var(--space-section) 0;
}

.why__list {
  margin-top: var(--space-block);
  display: flex;
  flex-direction: column;
}

.why__item {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 36px 0;
  border-bottom: 1px solid var(--color-accent);
  border-bottom-width: 1px;
  border-image: linear-gradient(to right, var(--color-primary), transparent) 1;
  transition: transform var(--transition);
}

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

@media (min-width: 768px) {
  .why__item {
    gap: 60px;
    padding: 48px 0;
  }
}

.why__item:hover .why__item-body {
  transform: translateX(8px);
}

.why__item-number {
  font-family: var(--font-heading);
  font-size: clamp(48px, 6vw, 80px);
  font-weight: 700;
  color: var(--color-border);
  line-height: 1;
  letter-spacing: -0.04em;
  flex-shrink: 0;
  transition: color var(--transition);
}

.why__item:hover .why__item-number {
  color: var(--color-primary-light);
}

.why__item-body {
  transition: transform var(--transition);
  padding-top: 8px;
}

@media (min-width: 768px) {
  .why__item-body {
    padding-top: 16px;
  }
}

.why__item-title {
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.4;
}

.why__item-desc {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 2.0;
  max-width: 500px;
}

/* ============================================
   Motion Enhancement 1: Hero Scroll Scaling
   ============================================ */
.hero__mask-text {
  will-change: transform, opacity;
}

/* ============================================
   Motion Enhancement 3: Image Reveal (Curtain)
   ============================================ */
.img-reveal {
  position: relative;
  overflow: hidden;
}

.img-reveal::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-primary);
  transform: scaleX(1);
  transform-origin: right;
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
  z-index: 2;
  pointer-events: none;
}

.img-reveal.is-revealed::after {
  transform: scaleX(0);
}

/* ============================================
   Motion Enhancement 4: Character Animation
   ============================================ */
.char {
  display: inline-block;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

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

/* ============================================
   Motion Enhancement 5: Numbers Background Text
   ============================================ */
.numbers__item {
  position: relative;
}

.numbers__item[data-label]::before {
  content: attr(data-label);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-heading);
  font-size: clamp(150px, 25vw, 300px);
  font-weight: 700;
  color: var(--color-primary);
  opacity: 0.04;
  z-index: 0;
  pointer-events: none;
  line-height: 1;
  white-space: nowrap;
}

/* ============================================
   Scroll Progress Bar
   ============================================ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  z-index: 10001;
  pointer-events: none;
  will-change: width;
}

/* ============================================
   Why ARCUS — Card Connectors (desktop only)
   ============================================ */
@media (min-width: 1024px) {
  .why-hscroll__card + .why-hscroll__card {
    position: relative;
  }
}