/* =========================================================
   sorbet corporate site — site.css
   Color palette aligned with the sorbet logo (pale blue gradient)
   ========================================================= */

:root {
  /* Brand palette */
  --sky:    #B8DDED;
  --aqua:   #8EC4DE;
  --marine: #6AADCF;
  --slate:  #4A7A95;
  --dusk:   #2C5872;
  --pale:   #E8F4FA;
  --cream:  #F8FBFD;
  --white:  #FFFFFF;
  --text:   #3A5168;
  --muted:  #8FA8B8;

  /* Layout */
  --nav-h: 64px;
  --max-w: 1180px;
  --content-w: 880px;

  /* Type scale */
  --ff: "Hiragino Sans", "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --ff-en: "Inter", "Hiragino Sans", "Noto Sans JP", sans-serif;

  /* Easing */
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* Reset & base ------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--ff);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--dusk);
  color: var(--white);
  padding: 12px 20px;
  font-size: 14px;
  z-index: 99999;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
  color: var(--white);
}
::selection { background: var(--aqua); color: var(--white); }
::-moz-selection { background: var(--aqua); color: var(--white); }
:focus-visible {
  outline: 2px solid var(--marine);
  outline-offset: 3px;
  border-radius: 4px;
}
@supports (scrollbar-width: thin) {
  html { scrollbar-color: var(--aqua) var(--cream); scrollbar-width: thin; }
}
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--cream); }
::-webkit-scrollbar-thumb { background: var(--aqua); border-radius: 5px; border: 2px solid var(--cream); }
::-webkit-scrollbar-thumb:hover { background: var(--marine); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--marine); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--slate); }
h1, h2, h3, h4, h5 { font-weight: 600; line-height: 1.4; color: var(--dusk); margin: 0; letter-spacing: .02em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

/* Navigation -------------------------------------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  border-bottom: 1px solid rgba(142, 196, 222, .2);
  z-index: 1000;
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}
.nav.scrolled {
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 6px 24px rgba(74, 122, 149, .08);
}
.nav__inner {
  max-width: var(--max-w);
  height: 100%;
  margin: 0 auto;
  padding: 0 32px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav__logo {
  display: flex; align-items: center; gap: 10px;
  color: var(--dusk);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: .05em;
}
.nav__logo img { width: 36px; height: 36px; }
.nav__menu { display: flex; gap: 28px; align-items: center; }
.nav__menu a {
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .08em;
  position: relative;
  padding: 4px 0;
}
.nav__menu a::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px; background: var(--aqua);
  transition: width .3s var(--ease);
}
.nav__menu a:hover::after, .nav__menu a.active::after { width: 100%; }
.nav__cta {
  background: var(--dusk);
  color: var(--white) !important;
  padding: 12px 32px;
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: .18em;
  margin-left: 12px;
  transition: background .25s var(--ease), transform .25s var(--ease);
}
.nav__cta:hover { background: var(--slate); color: var(--white) !important; transform: translateY(-1px); }
.nav__cta::after { display: none !important; }

.nav__hamburger {
  display: none;
  width: 32px; height: 32px;
  background: none; border: none; cursor: pointer;
  position: relative;
}
.nav__hamburger span {
  position: absolute; left: 4px; width: 24px; height: 2px;
  background: var(--dusk); transition: all .3s var(--ease);
}
.nav__hamburger span:nth-child(1) { top: 10px; }
.nav__hamburger span:nth-child(2) { top: 16px; }
.nav__hamburger span:nth-child(3) { top: 22px; }
.nav__hamburger.open span:nth-child(1) { top: 16px; transform: rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { top: 16px; transform: rotate(-45deg); }

/* Container --------------------------------------------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* Section base ------------------------------------------ */
section {
  padding: 140px 0;
  position: relative;
}
@media (min-width: 1200px) {
  section { padding: 160px 0; }
}

/* Section background accents (subtle gradient washes) */
.section--washed {
  background: linear-gradient(180deg, var(--cream) 0%, var(--pale) 100%);
}
.section__bg-orb {
  position: absolute;
  width: 520px; height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--sky) 0%, transparent 70%);
  filter: blur(80px);
  opacity: .35;
  pointer-events: none;
  z-index: 0;
}
.section__bg-orb--right { right: -200px; top: 20%; }
.section__bg-orb--left { left: -200px; bottom: 10%; }
.container { position: relative; z-index: 1; }
.section__lead {
  display: block;
  font-family: "Inter", var(--ff);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .32em;
  color: var(--marine);
  text-transform: uppercase;
  margin-bottom: 28px;
  position: relative;
  padding-left: 40px;
}
.section__lead::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 28px; height: 1px;
  background: var(--marine);
}
.section__title {
  font-size: clamp(28px, 3.8vw, 48px);
  font-weight: 700;
  letter-spacing: .01em;
  line-height: 1.35;
  margin-bottom: 28px;
  position: relative;
  display: block;
  padding-bottom: 20px;
}
.section__title::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 48px; height: 2px;
  background: var(--aqua);
}
.section__title.center {
  text-align: center;
}
.section__title.center { display: block; text-align: center; }
.section__title.center::after { left: 50%; transform: translateX(-50%); }
/* Center-aligned section leads (mission/industries/contact) — line above */
.mission .section__lead,
.industries .section__lead,
.contact .section__lead {
  padding-left: 0;
  text-align: center;
  margin: 0 auto 28px;
  width: max-content;
  padding-top: 22px;
}
.mission .section__lead::before,
.industries .section__lead::before,
.contact .section__lead::before {
  left: 50%;
  top: 0;
  transform: translateX(-50%);
}
.section__sub {
  font-size: 17px;
  color: var(--slate);
  margin-bottom: 56px;
  max-width: 720px;
  line-height: 1.9;
}
.section__sub.center { text-align: center; margin-left: auto; margin-right: auto; }

/* Hero -------------------------------------------------- */
.hero {
  min-height: 100vh;
  padding: var(--nav-h) 0 100px;
  display: flex; align-items: center; justify-content: center;
  background: var(--cream);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Aurora gradient background — 流体グラデが緩やかに動く */
.hero__aurora {
  position: absolute;
  inset: -10%;
  z-index: 0;
  pointer-events: none;
  filter: blur(60px);
  opacity: .9;
}
.hero__aurora::before,
.hero__aurora::after,
.hero__aurora span {
  content: "";
  position: absolute;
  border-radius: 50%;
  mix-blend-mode: multiply;
  will-change: transform;
}
.hero__aurora::before {
  width: 60%; height: 60%;
  left: -10%; top: 10%;
  background: radial-gradient(circle, var(--sky) 0%, transparent 70%);
  animation: auroraA 24s ease-in-out infinite;
}
.hero__aurora::after {
  width: 55%; height: 55%;
  right: -8%; top: 30%;
  background: radial-gradient(circle, var(--aqua) 0%, transparent 70%);
  animation: auroraB 28s ease-in-out infinite;
}
.hero__aurora span {
  width: 50%; height: 50%;
  left: 30%; bottom: -10%;
  background: radial-gradient(circle, var(--marine) 0%, transparent 70%);
  opacity: .35;
  animation: auroraC 32s ease-in-out infinite;
}
@keyframes auroraA {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(15%, 8%) scale(1.15); }
}
@keyframes auroraB {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-12%, 10%) scale(.9); }
}
@keyframes auroraC {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(8%, -8%) scale(1.1); }
}

.hero__inner {
  max-width: 1080px;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}
.hero__logo {
  width: 280px; height: 280px;
  margin: 0 auto 40px;
  position: relative;
  animation: floatY 7s ease-in-out infinite;
}
.hero__logo::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  border: 1px solid rgba(142, 196, 222, .35);
  animation: pulseRing 4s ease-out infinite;
  pointer-events: none;
}
.hero__logo-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  opacity: 0;
  transition: opacity 1.2s var(--ease) .4s;
}
.hero__logo-canvas.is-loaded { opacity: 1; }
.hero__logo-canvas canvas { display: block; }
/* Fallback static logo (visible until 3D sphere takes over) */
.hero__logo-fallback {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
  box-shadow:
    0 0 0 1px rgba(255,255,255,.6),
    0 24px 60px rgba(74, 122, 149, .22),
    inset 0 -24px 40px rgba(74, 122, 149, .1);
  transition: opacity .8s var(--ease);
}
.hero__logo-canvas.is-loaded ~ .hero__logo-fallback {
  opacity: 0;
}
.hero__logo-mark {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Inter", var(--ff);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--white);
  text-shadow: 0 2px 12px rgba(44,88,114,.45);
  opacity: 0;
  transition: opacity 1.4s var(--ease) 1.2s;
  pointer-events: none;
  z-index: 3;
}
html.js .hero__logo-mark { opacity: 1; }
@media (max-width: 560px) {
  .hero__logo { width: 220px; height: 220px; }
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes pulseRing {
  0% { transform: scale(1); opacity: .6; }
  100% { transform: scale(1.4); opacity: 0; }
}

.hero__eyebrow {
  font-family: "Inter", var(--ff);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .35em;
  color: var(--marine);
  text-transform: uppercase;
  margin: 16px auto 28px;
  opacity: 0;
  animation: fadeInDown 1s var(--ease) .2s forwards;
  position: relative;
  padding-top: 22px;
  display: block;
  width: max-content;
}
.hero__eyebrow::before {
  content: "";
  position: absolute;
  left: 50%; top: 0;
  transform: translateX(-50%);
  width: 32px; height: 1px;
  background: var(--marine);
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}
.hero__tagline {
  font-size: clamp(28px, 4.5vw, 58px);
  font-weight: 700;
  color: var(--dusk);
  letter-spacing: 0;
  line-height: 1.35;
  margin-bottom: 36px;
}
.hero__tagline .word {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
  white-space: nowrap;
}
.hero__tagline .word > span {
  display: inline-block;
  white-space: nowrap;
}
html.js .hero__tagline .word > span {
  transform: translateY(110%);
  transition: transform 1s var(--ease);
}
html.js .hero__tagline.in .word > span {
  transform: none;
}
.hero__tagline em {
  font-style: normal;
  background: linear-gradient(180deg, transparent 70%, rgba(142, 196, 222, .55) 70%);
  padding: 0 8px;
  color: var(--dusk);
}
.hero__sub {
  font-size: clamp(14px, 1.4vw, 16px);
  color: var(--slate);
  letter-spacing: .06em;
  line-height: 2;
  max-width: 720px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 1.2s var(--ease) .8s, transform 1.2s var(--ease) .8s;
}
html.js .hero__tagline.in + .hero__sub,
.hero__sub { opacity: 1; transform: none; }
html.js .hero__sub {
  opacity: 0;
  transform: translateY(12px);
}
html.js .hero__tagline.in ~ .hero__sub {
  opacity: 1;
  transform: none;
}

.hero__scroll {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  font-family: "Inter", var(--ff);
  font-size: 10px;
  letter-spacing: .35em;
  color: var(--slate);
  opacity: .65;
  z-index: 3;
  text-align: center;
}
.hero__scroll span { display: block; }
.hero__scroll::after {
  content: ""; display: block;
  width: 1px; height: 36px;
  background: var(--slate);
  margin: 10px auto 0;
  animation: scrollLine 2.4s ease-in-out infinite;
}
@media (max-width: 560px) {
  .hero__scroll { display: none; }
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Section background image (mission/strengths/process/closing) */
.mission__bg, .strengths__bg, .process__bg, .closing__bg {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0;
}
.mission__bg img, .strengths__bg img, .process__bg img, .closing__bg img {
  width: 100%; height: 100%; object-fit: cover;
}
.mission__bg img, .strengths__bg img, .process__bg img {
  filter: saturate(.85) brightness(1.05);
}
.mission__bg::after, .strengths__bg::after, .process__bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(248,251,253,.92) 0%, rgba(248,251,253,.86) 50%, rgba(232,244,250,.94) 100%);
}
.closing__bg img {
  filter: saturate(.55) hue-rotate(-15deg) brightness(1.05);
}
.closing__bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(184,221,237,.55) 0%, rgba(142,196,222,.55) 60%, rgba(184,221,237,.65) 100%);
}
.mission .container, .strengths .container, .process .container, .closing .container {
  position: relative; z-index: 2;
}

/* Hero CTA + Trust microcopy ---------------------------- */
.hero__cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 12px;
  margin-bottom: 18px;
}
.hero__trust {
  font-family: "Inter", var(--ff);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
  margin-top: 8px;
}

/* Buttons ----------------------------------------------- */
.btn--primary {
  display: inline-block;
  background: var(--dusk);
  color: var(--white);
  padding: 16px 36px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .15em;
  transition: background .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
  box-shadow: 0 10px 28px rgba(44, 88, 114, .26);
}
.btn--primary:hover {
  background: var(--slate);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(44, 88, 114, .32);
}
.btn--ghost {
  display: inline-block;
  background: transparent;
  color: var(--dusk);
  padding: 16px 32px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .12em;
  border: 1px solid rgba(74, 122, 149, .35);
  transition: background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}
.btn--ghost:hover {
  background: var(--pale);
  border-color: var(--marine);
  color: var(--marine);
}
.btn--lg { padding: 20px 48px; font-size: 15px; }
.btn--xl { padding: 24px 64px; font-size: 16px; letter-spacing: .18em; }

/* Proof bar --------------------------------------------- */
.proof-bar {
  background: var(--white);
  padding: 56px 0;
  border-top: 1px solid rgba(142,196,222,.18);
  border-bottom: 1px solid rgba(142,196,222,.18);
}
.proof-bar__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  list-style: none;
  padding: 0; margin: 0;
}
.proof-bar__item {
  text-align: center;
  padding: 0 12px;
  border-right: 1px solid rgba(142,196,222,.18);
}
.proof-bar__item:last-child { border-right: none; }
.proof-bar__num {
  display: block;
  font-family: "Inter", var(--ff);
  font-size: 28px;
  font-weight: 600;
  color: var(--dusk);
  letter-spacing: .02em;
  margin-bottom: 8px;
}
.proof-bar__label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
  letter-spacing: .04em;
}
@media (max-width: 900px) {
  .proof-bar__list { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .proof-bar__item { border-right: none; }
}
@media (max-width: 480px) {
  .proof-bar__list { grid-template-columns: 1fr; }
}

/* Value Proposition ------------------------------------- */
.value-prop {
  background: var(--cream);
}
.value-prop__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 24px;
}
.value-prop__item {
  background: var(--white);
  border-radius: 18px;
  padding: 36px 36px;
  border-top: 3px solid var(--marine);
  box-shadow: 0 8px 24px rgba(74, 122, 149, .06);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.value-prop__item:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(74, 122, 149, .12);
}
.value-prop__num {
  font-family: "Inter", var(--ff);
  font-size: 14px;
  font-weight: 600;
  color: var(--marine);
  letter-spacing: .15em;
  margin-bottom: 14px;
}
.value-prop__title {
  font-size: 20px;
  color: var(--dusk);
  margin-bottom: 12px;
  line-height: 1.5;
}
.value-prop__body {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}
@media (max-width: 800px) { .value-prop__grid { grid-template-columns: 1fr; } }

/* AI Assessment ----------------------------------------- */
.assessment {
  background: var(--white);
  position: relative;
}
.assessment .strengths__bg {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0;
}
.assessment .strengths__bg img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(.8) brightness(1.05);
  opacity: .35;
}
.assessment .strengths__bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.85) 0%, rgba(248,251,253,.75) 100%);
}
.assessment .container { position: relative; z-index: 2; }
.assessment__axes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 32px 0 56px;
}
.assessment__axis {
  background: var(--white);
  border-radius: 14px;
  padding: 28px 20px;
  text-align: center;
  border-top: 3px solid var(--aqua);
  box-shadow: 0 8px 22px rgba(74, 122, 149, .08);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.assessment__axis:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 38px rgba(74, 122, 149, .14);
}
.assessment__axis-num {
  font-family: "Inter", var(--ff);
  font-size: 13px;
  font-weight: 600;
  color: var(--marine);
  letter-spacing: .2em;
  margin-bottom: 10px;
}
.assessment__axis-title {
  font-size: 17px;
  color: var(--dusk);
  margin-bottom: 10px;
  line-height: 1.4;
}
.assessment__axis-body {
  font-size: 13.5px;
  color: var(--text);
  line-height: 1.7;
}
.assessment__deliverable {
  background: var(--pale);
  border-radius: 14px;
  padding: 32px 36px;
  margin-bottom: 40px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.assessment__deliverable-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .2em;
  color: var(--marine);
  margin-bottom: 16px;
  text-align: center;
}
.assessment__deliverable-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
  list-style: none;
  padding: 0; margin: 0;
  font-size: 14.5px;
  color: var(--dusk);
}
.assessment__deliverable-list li {
  position: relative;
  padding-left: 22px;
}
.assessment__deliverable-list li::before {
  content: ""; position: absolute;
  left: 0; top: 10px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--marine);
}
.assessment__cta {
  text-align: center;
  margin-top: 32px;
}
.assessment__cta-note {
  margin-top: 20px;
  font-size: 13px;
  color: var(--muted);
}
@media (max-width: 900px) {
  .assessment__axes { grid-template-columns: repeat(2, 1fr); }
  .assessment__deliverable-list { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .assessment__axes { grid-template-columns: 1fr; }
}

/* Manifesto -------------------------------------------- */
.manifesto {
  background: var(--cream);
  text-align: center;
}
.manifesto__heading {
  font-size: clamp(28px, 4.4vw, 52px);
  font-weight: 700;
  color: var(--dusk);
  letter-spacing: .02em;
  line-height: 1.4;
  margin-bottom: 56px;
}
.manifesto__body {
  max-width: 720px;
  margin: 0 auto;
}
.manifesto__body p {
  font-size: 17px;
  line-height: 2.05;
  color: var(--text);
  margin-bottom: 36px;
}
.manifesto__body p:last-child { margin-bottom: 0; color: var(--marine); font-weight: 500; }

/* FAQ -------------------------------------------------- */
.faq {
  background: var(--white);
}
.faq__list {
  max-width: 800px;
  margin: 32px auto 0;
}
.faq__item {
  border-bottom: 1px solid rgba(142,196,222,.25);
  padding: 4px 0;
}
.faq__item[open] { background: var(--cream); border-radius: 8px; padding: 4px 16px; }
.faq__q {
  cursor: pointer;
  padding: 24px 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--dusk);
  position: relative;
  list-style: none;
  padding-right: 40px;
  transition: color .25s var(--ease);
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  color: var(--marine);
  font-weight: 300;
  transition: transform .25s var(--ease);
}
.faq__item[open] .faq__q::after {
  content: "−";
}
.faq__q:hover { color: var(--marine); }
.faq__a {
  padding: 0 8px 24px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--text);
}
.faq__a ul {
  margin: 0; padding-left: 0;
  list-style: none;
}
.faq__a ul li {
  padding-left: 18px;
  position: relative;
  margin-bottom: 6px;
}
.faq__a ul li::before {
  content: ""; position: absolute;
  left: 0; top: 12px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--aqua);
}

/* Closing CTA polish ----------------------------------- */
.closing__title {
  margin-bottom: 28px;
}
.closing__cta {
  margin-bottom: 40px;
}
.closing__note {
  font-size: 13px;
  color: var(--dusk);
  font-family: "Inter", var(--ff);
  letter-spacing: .04em;
  margin-top: 20px;
}

/* Capabilities note ------------------------------------ */
.services__note {
  text-align: center;
  margin-top: 48px;
  font-size: 14px;
  color: var(--muted);
  font-style: italic;
}

/* Contact note ----------------------------------------- */
.contact__note {
  margin-top: 16px;
  font-size: 12px;
  color: var(--muted);
}

/* Mission ----------------------------------------------- */
.mission {
  background: var(--white);
  text-align: center;
  position: relative;
}
.mission__statement {
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 600;
  color: var(--dusk);
  line-height: 1.5;
  letter-spacing: .04em;
  margin: 0 auto 40px;
  max-width: 880px;
}
.mission__statement em {
  font-style: normal;
  color: var(--marine);
}
.mission__lead-line {
  width: 56px; height: 2px;
  background: var(--aqua);
  margin: 0 auto 32px;
}
.mission__body {
  font-size: 17px;
  line-height: 2;
  color: var(--text);
  max-width: 680px;
  margin: 0 auto;
}

/* Cards (3-col grid) ------------------------------------ */
.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.card {
  background: var(--white);
  border-radius: 18px;
  padding: 40px 36px;
  border-top: 3px solid var(--aqua);
  box-shadow: 0 8px 24px rgba(74, 122, 149, .06);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--pale) 0%, transparent 60%);
  opacity: 0;
  transition: opacity .4s var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 50px rgba(74, 122, 149, .14);
  border-top-color: var(--marine);
}
.card:hover::before { opacity: 1; }
.card > * { position: relative; z-index: 1; }
.card__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .2em;
  color: var(--marine);
  background: var(--pale);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.card__title {
  font-size: 20px;
  color: var(--dusk);
  margin-bottom: 14px;
  line-height: 1.5;
}
.card__body {
  font-size: 14.5px;
  color: var(--text);
  line-height: 1.85;
}

/* Problem section --------------------------------------- */
.problem {
  background: var(--cream);
}

/* Solution section -------------------------------------- */
.solution {
  background: var(--white);
}

/* Strengths --------------------------------------------- */
.strengths {
  background: var(--cream);
  position: relative;
}
.strengths__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}
.strength {
  background: var(--white);
  border-radius: 16px;
  padding: 36px 36px;
  box-shadow: 0 8px 24px rgba(74, 122, 149, .06);
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.strength:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(74, 122, 149, .10); }
.strength__num {
  flex-shrink: 0;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--aqua), var(--marine));
  color: var(--white);
  font-size: 22px;
  font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  letter-spacing: .02em;
}
.strength__body { flex: 1; }
.strength__title {
  font-size: 19px;
  color: var(--dusk);
  margin-bottom: 10px;
  line-height: 1.4;
}
.strength__text {
  font-size: 14.5px;
  line-height: 1.85;
}
.note-box {
  background: var(--pale);
  border-left: 3px solid var(--marine);
  padding: 24px 28px;
  border-radius: 8px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--text);
}
.note-box strong { color: var(--dusk); font-weight: 600; }

/* Services ---------------------------------------------- */
.services {
  background: var(--white);
}
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.service {
  background: var(--cream);
  border-radius: 14px;
  padding: 32px 32px;
  border-left: 3px solid var(--aqua);
}
.service__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .25em;
  color: var(--marine);
  margin-bottom: 12px;
  display: block;
}
.service__title {
  font-size: 20px;
  color: var(--dusk);
  margin-bottom: 14px;
}
.service__items {
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--text);
}
.service__items li {
  padding-left: 20px;
  position: relative;
  margin-bottom: 6px;
  transition: transform .25s var(--ease);
}
.service__items li::before {
  content: ""; position: absolute;
  left: 0; top: 14px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--aqua);
  transition: background .25s var(--ease);
}
.service:hover .service__items li::before { background: var(--marine); }

/* Process ----------------------------------------------- */
.process {
  background: var(--cream);
  position: relative;
}
.process__flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
}
.phase {
  background: var(--white);
  border-radius: 14px;
  padding: 32px 24px;
  text-align: center;
  position: relative;
  box-shadow: 0 8px 24px rgba(74, 122, 149, .06);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.phase:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 44px rgba(74, 122, 149, .14);
}
.phase::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--aqua), transparent);
  opacity: 0;
  transition: opacity .4s var(--ease);
}
.phase:hover::before { opacity: 1; }
.phase__num {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .25em;
  color: var(--marine);
  margin-bottom: 10px;
}
.phase__title {
  font-size: 17px;
  color: var(--dusk);
  margin-bottom: 12px;
  line-height: 1.4;
}
.phase__body {
  font-size: 13px;
  line-height: 1.8;
  color: var(--text);
}

/* Group ------------------------------------------------- */
.group {
  background: var(--white);
}
.group__inner {
  max-width: var(--content-w);
  margin: 0 auto;
}
.group__copy {
  font-size: 17px;
  line-height: 2.05;
  color: var(--text);
  margin-bottom: 28px;
}
.group__pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.pillar {
  padding: 28px 28px;
  background: var(--pale);
  border-radius: 14px;
}
.pillar__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .25em;
  color: var(--marine);
  margin-bottom: 12px;
  display: block;
}
.pillar__title {
  font-size: 18px;
  color: var(--dusk);
  margin-bottom: 10px;
}
.pillar__body {
  font-size: 14px;
  line-height: 1.85;
  color: var(--text);
}

/* Leadership -------------------------------------------- */
.leadership {
  background: var(--cream);
}
.leadership__grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 56px;
  align-items: start;
  max-width: var(--content-w);
  margin: 0 auto;
}
.leadership__photo {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(74, 122, 149, .18);
  background: var(--white);
  position: relative;
}
.leadership__photo::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.5);
  pointer-events: none;
}
.leadership__photo img { width: 100%; height: auto; display: block; }
.leadership__name {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .25em;
  color: var(--marine);
  margin-bottom: 6px;
}
.leadership__title {
  font-size: 28px;
  color: var(--dusk);
  margin-bottom: 8px;
  line-height: 1.4;
}
.leadership__edu {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 28px;
}
.career {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 36px;
  position: relative;
}
.career__step {
  background: var(--white);
  border-radius: 12px;
  padding: 26px 18px;
  text-align: center;
  border-top: 3px solid var(--aqua);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
  box-shadow: 0 4px 14px rgba(74, 122, 149, .04);
}
.career__step:hover {
  transform: translateY(-3px);
  border-top-color: var(--marine);
  box-shadow: 0 12px 28px rgba(74, 122, 149, .1);
}
.career__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .25em;
  color: var(--marine);
  margin-bottom: 8px;
}
.career__role {
  font-size: 15px;
  color: var(--dusk);
  font-weight: 600;
  line-height: 1.5;
}
.career__years {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
  letter-spacing: .04em;
}
.leadership__quote {
  background: var(--white);
  border-left: 3px solid var(--marine);
  padding: 24px 28px;
  border-radius: 8px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--dusk);
  font-style: normal;
}
.leadership__quote em {
  font-style: normal;
  color: var(--marine);
  font-weight: 600;
}

/* Industries -------------------------------------------- */
.industries {
  background: var(--white);
  text-align: center;
}
.industries__tags {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto 32px;
}
.tag {
  background: var(--pale);
  color: var(--dusk);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .05em;
  padding: 14px 28px;
  border-radius: 999px;
  border: 1px solid rgba(142, 196, 222, .35);
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
  cursor: default;
}
.tag:hover {
  background: var(--aqua);
  color: var(--white);
  border-color: var(--aqua);
  transform: translateY(-2px);
}
.industries__note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 24px;
}

/* Closing CTA ------------------------------------------- */
.closing {
  background: var(--sky);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.closing__title {
  font-size: clamp(36px, 6vw, 72px);
  color: var(--dusk);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: .02em;
  margin-bottom: 24px;
}
.closing__title em {
  font-style: normal;
  color: var(--dusk);
  background: linear-gradient(180deg, transparent 70%, rgba(255,255,255,.6) 70%);
  padding: 0 8px;
}
.closing__sub {
  font-size: 17px;
  color: var(--dusk);
  font-family: "Inter", var(--ff);
  letter-spacing: .04em;
  margin-bottom: 48px;
  font-weight: 500;
}
.btn {
  display: inline-block;
  background: var(--dusk);
  color: var(--white);
  padding: 22px 56px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .18em;
  transition: background .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
  box-shadow: 0 12px 32px rgba(44, 88, 114, .3);
}
.btn:hover {
  background: var(--slate);
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(44, 88, 114, .35);
}

/* Company info ------------------------------------------ */
.company {
  background: var(--white);
}
.company__inner {
  max-width: 720px;
  margin: 0 auto;
}
.company__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}
.company__table th, .company__table td {
  text-align: left;
  padding: 18px 0;
  border-bottom: 1px solid rgba(142, 196, 222, .25);
  vertical-align: top;
}
.company__table th {
  width: 180px;
  color: var(--marine);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: .1em;
}
.company__table td {
  color: var(--text);
  line-height: 1.8;
}

/* Contact ----------------------------------------------- */
.contact {
  background: var(--cream);
  text-align: center;
}
.contact__inner {
  max-width: 580px;
  margin: 0 auto;
}
.contact__lead {
  font-size: 16px;
  color: var(--text);
  line-height: 2;
  margin-bottom: 32px;
}
.contact__email {
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 600;
  color: var(--dusk);
  letter-spacing: .04em;
  display: inline-block;
  padding: 16px 40px;
  border: 2px solid var(--aqua);
  border-radius: 999px;
  background: var(--white);
  transition: all .25s var(--ease);
}
.contact__email:hover {
  background: var(--aqua);
  color: var(--white);
  transform: translateY(-2px);
}

/* Footer ------------------------------------------------ */
.footer {
  background: var(--white);
  border-top: 1px solid rgba(142, 196, 222, .25);
  padding: 32px 0;
  text-align: center;
}
.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .08em;
}
.footer__copy { color: var(--muted); }

/* Magnetic cursor (desktop only) -------------------------- */
.mag-cursor {
  position: fixed; top: 0; left: 0;
  width: 0; height: 0;
  pointer-events: none;
  z-index: 9999;
  transition: opacity .25s var(--ease);
  mix-blend-mode: multiply;
}
.mag-cursor.is-hidden { opacity: 0; }
.mag-cursor__dot {
  position: absolute;
  left: -6px; top: -6px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--marine);
  transition: transform .3s var(--ease), background .3s var(--ease), opacity .3s var(--ease);
  opacity: .8;
}
.mag-cursor.is-hover .mag-cursor__dot {
  transform: scale(3.6);
  background: var(--aqua);
  opacity: .35;
}
@media (pointer: coarse) {
  .mag-cursor { display: none; }
}

/* Reveal on scroll -------------------------------------- */
/* JS未読込時・reduced-motion時は初期から表示状態 */
.reveal { opacity: 1; transform: none; }
.reveal--stagger > * { opacity: 1; transform: none; }

html.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
html.js .reveal.visible { opacity: 1; transform: none; }
html.js .reveal--stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
html.js .reveal--stagger.visible > *:nth-child(1) { transition-delay: .05s; opacity: 1; transform: none; }
html.js .reveal--stagger.visible > *:nth-child(2) { transition-delay: .15s; opacity: 1; transform: none; }
html.js .reveal--stagger.visible > *:nth-child(3) { transition-delay: .25s; opacity: 1; transform: none; }
html.js .reveal--stagger.visible > *:nth-child(4) { transition-delay: .35s; opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html.js .reveal, html.js .reveal--stagger > * { opacity: 1; transform: none; transition: none; }
}

/* Responsive -------------------------------------------- */
@media (max-width: 900px) {
  section { padding: 80px 0; }
  .nav__menu { display: none; }
  .nav__hamburger { display: block; }
  .nav.open .nav__menu {
    display: flex;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    background: var(--white);
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid rgba(142, 196, 222, .25);
    box-shadow: 0 12px 30px rgba(74, 122, 149, .1);
  }
  .nav.open .nav__menu a { font-size: 15px; }

  .cards-3 { grid-template-columns: 1fr; }
  .strengths__grid { grid-template-columns: 1fr; }
  .services__grid { grid-template-columns: 1fr; }
  .process__flow { grid-template-columns: 1fr 1fr; }
  .group__pillars { grid-template-columns: 1fr; }

  .leadership__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .leadership__photo {
    max-width: 280px;
    margin: 0 auto;
  }
  .career { grid-template-columns: 1fr; }

  .footer__inner { flex-direction: column; gap: 8px; }
}

@media (max-width: 560px) {
  body { font-size: 15px; }
  section { padding: 64px 0; }
  .container { padding: 0 20px; }
  .hero__logo { width: 140px; height: 140px; margin-bottom: 24px; }
  .card { padding: 28px 24px; }
  .strength { padding: 28px 24px; flex-direction: column; gap: 16px; }
  .leadership__title { font-size: 24px; }
  .process__flow { grid-template-columns: 1fr; }
  .company__table th { width: 120px; font-size: 12px; }
  .contact__email { font-size: 18px; padding: 14px 28px; }
}