/* ===== ベース ===== */
:root {
  --color-brand: #ffff72; /* コーポレートカラー */
  --color-text: #111111;
  --color-muted: #555555;
  --color-bg: #ffffeb; /* コーポレートカラーをごく薄くした背景色 */
  --color-surface: #ffffff; /* カードなどの面 */
  --color-border: #e5e5e5;
  --header-height: 72px;
  --radius: 14px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  /* 日本語の改行：HTML内の <wbr>（文節の区切り）でのみ折り返し、はみ出す場合だけ強制改行 */
  word-break: keep-all;
  overflow-wrap: break-word;
  line-break: strict;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

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

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

.container {
  width: min(1080px, 100% - 32px);
  margin-inline: auto;
}

/* ===== ボタン ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border: 2px solid var(--color-text);
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s, background 0.2s, color 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--color-text);
  color: #fff;
}

.btn--ghost {
  background: #fff;
}

.btn--ghost:hover {
  background: var(--color-text);
  color: #fff;
}

/* ===== ロゴ（白背景の画像を黄色の上に乗算して背景を #FFFF72 にする） ===== */
.logo {
  display: block;
  background: var(--color-brand);
  line-height: 0;
}

.logo img {
  display: block;
  width: 168px;
  mix-blend-mode: multiply;
}

/* ===== ヘッダー ===== */
.header {
  position: fixed;
  inset: 0 0 auto;
  height: var(--header-height);
  background: var(--color-brand);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  z-index: 100;
}

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.95rem;
  font-weight: 500;
}

.nav__list a:not(.nav__cta) {
  background: linear-gradient(var(--color-text), var(--color-text)) 0 100% / 0 2px no-repeat;
  transition: background-size 0.25s;
}

.nav__list a:not(.nav__cta):hover {
  background-size: 100% 2px;
}

.nav__cta {
  padding: 8px 20px;
  border-radius: 999px;
  background: var(--color-text);
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: none;
  background: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--color-text);
  transition: transform 0.3s, opacity 0.3s;
}

/* ===== ヒーロー（コーポレートカラー） ===== */
.hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 40px) 0 80px;
  background: var(--color-brand);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
}

.hero__illust {
  width: 100%;
  max-width: 520px;
  height: auto;
  justify-self: center;
}

.hero__eyebrow {
  margin: 0 0 12px;
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  letter-spacing: 0.2em;
}

.hero__title {
  margin: 0 0 24px;
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 1.25;
  letter-spacing: 0.04em;
}

.hero__lead {
  margin: 0 0 40px;
  font-size: 1rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ===== セクション共通 ===== */
.section {
  padding: 100px 0;
}

.section--bordered {
  border-top: 1px solid var(--color-border);
}

.section__title {
  margin: 0 0 48px;
  text-align: center;
  font-size: 1.8rem;
}

.section__title span {
  display: block;
  width: fit-content;
  margin: 0 auto 4px;
  font-family: "Poppins", sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  background: linear-gradient(transparent 55%, var(--color-brand) 55%);
}

/* ===== About ===== */
.about {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

/* 中央揃えの文は行の長さをそろえる */
.about p,
.contact__lead,
.works__note {
  text-wrap: balance;
}

.strengths {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 64px 0 0;
  padding: 0;
  list-style: none;
}

.strength {
  padding-top: 20px;
  border-top: 2px solid var(--color-text);
}

.strength__num {
  display: inline-block;
  padding: 0 10px;
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  background: var(--color-brand);
}

.strength__title {
  margin: 12px 0 8px;
  font-size: 1.1rem;
}

.strength p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* ===== Services ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  padding: 36px 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: transform 0.25s, box-shadow 0.25s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
}

.card__icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 12px;
  background: var(--color-brand);
}

.card__icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: var(--color-text);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card__title {
  margin: 0 0 12px;
  font-size: 1.2rem;
}

.card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* ===== Works ===== */
.works {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.work {
  display: flex;
  background: var(--color-surface);
  align-items: center;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.work__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--color-brand);
}

.work__icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--color-text);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.work p {
  margin: 0;
  font-weight: 700;
}

.works__note {
  margin: 24px 0 0;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
}

/* ===== Company ===== */
.company {
  max-width: 760px;
  margin: 0 auto;
  border-top: 2px solid var(--color-text);
}

.company__row {
  display: grid;
  grid-template-columns: 160px 1fr;
  padding: 20px 8px;
  border-bottom: 1px solid var(--color-border);
}

.company dt {
  font-weight: 700;
}

.company dd {
  margin: 0;
}

.text-link {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ===== Contact（コーポレートカラー） ===== */
.section--contact {
  background: var(--color-brand);
}

.contact {
  text-align: center;
}

.section--contact .section__title span {
  background: none;
}

.contact__lead {
  margin: 0 0 32px;
}

.contact__note {
  margin: 16px 0 0;
  font-size: 0.9rem;
}

/* ===== Footer ===== */
.footer {
  padding: 32px 0;
  background: var(--color-brand);
  color: var(--color-text);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo--footer img {
  width: 140px;
}

/* ===== レスポンシブ ===== */
/* タブレット幅：3列だと1行が短くなりすぎるため1列に */
@media (max-width: 960px) {
  .cards,
  .strengths {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .pc-only {
    display: none;
  }

  .about {
    text-align: left;
  }

  .about p {
    text-wrap: pretty;
  }

  .logo img {
    width: 136px;
  }

  .nav-toggle {
    display: block;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-brand);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transform: translateY(-120%);
    transition: transform 0.3s;
    z-index: -1;
  }

  .nav.is-open {
    transform: translateY(0);
  }

  .nav__list {
    flex-direction: column;
    gap: 0;
    padding: 12px 16px 24px;
  }

  .nav__list li {
    width: 100%;
    text-align: center;
  }

  .nav__list a {
    display: block;
    padding: 14px 0;
  }

  .nav__cta {
    margin-top: 8px;
  }

  .nav-toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero {
    min-height: 0;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__actions .btn {
    padding: 12px 24px;
  }

  .hero__illust {
    max-width: 400px;
    margin-inline: auto;
  }

  .section {
    padding: 72px 0;
  }

  .cards,
  .strengths,
  .works {
    grid-template-columns: 1fr;
  }

  .company__row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer__inner {
    flex-direction: column;
  }
}

/* 途中で改行させたくない語（Blu-ray など） */
.nowrap {
  white-space: nowrap;
}