@charset "UTF-8";

/* =========================================================
   Design tokens
   ========================================================= */
:root {
  --color-primary: #0f3a2e;
  --color-primary-hover: #1a5a45;
  --color-primary-deep: #092420;
  --color-accent: #8cc63f;
  --color-eyebrow: #3f6b52;
  --color-text: #1f2a26;
  --color-text-muted: #55655e;
  --color-bg: #ffffff;
  --color-bg-soft: #f4f7f4;
  --color-line: #dfe6e1;
  --color-focus: #0f3a2e;

  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  --font-en: "Jost", var(--font-sans);

  --container: 1120px;
  --container-wide: 1240px;
  --gutter: clamp(20px, 5vw, 40px);
  --header-h: 64px;
  --section-pt: clamp(72px, 9vw, 128px);
  --radius: 2px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

@media (width >= 768px) {
  :root {
    --header-h: 78px;
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding-top: var(--header-h);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.95;
  letter-spacing: 0.03em;
  color: var(--color-text);
  background-color: var(--color-bg);
}

h1,
h2,
h3,
p,
dl,
dt,
dd,
address {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

address {
  font-style: normal;
}

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

a {
  color: inherit;
}

button {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.link {
  color: var(--color-primary);
  text-decoration-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
  text-underline-offset: 0.25em;
  transition: text-decoration-color 0.3s var(--ease);

  &:hover {
    text-decoration-color: currentColor;
  }
}

.skip-link {
  position: fixed;
  inset-block-start: 8px;
  inset-inline-start: 8px;
  z-index: 200;
  padding: 10px 18px;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 0.875rem;
  text-decoration: none;
  translate: 0 -200%;
  transition: translate 0.2s var(--ease);

  &:focus {
    translate: 0 0;
  }
}

.container {
  width: min(100% - var(--gutter) * 2, var(--container));
  margin-inline: auto;
}

.u-pc-only {
  display: none;
}

@media (width >= 768px) {
  .u-pc-only {
    display: inline;
  }
}

/* =========================================================
   Section common
   ========================================================= */
.section {
  padding-block: var(--section-pt);
}

.section--soft {
  background-color: var(--color-bg-soft);
}

.section__head {
  margin-block-end: clamp(40px, 5vw, 64px);
}

.section__eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-en);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-eyebrow);

  &::before {
    content: "";
    inline-size: 28px;
    block-size: 1px;
    background-color: var(--color-accent);
  }
}

.section__eyebrow--light {
  justify-content: center;
  color: var(--color-accent);
}

.section__title {
  margin-block-start: 18px;
  font-size: clamp(1.5rem, 3.2vw, 2.125rem);
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.section__title--light {
  color: #fff;
}

.section__lead {
  margin-block-start: 24px;
  max-width: 44em;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* =========================================================
   Button
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding-inline: 32px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  background-color: var(--color-primary);
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.06em;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);

  &:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
  }
}

.btn--sm {
  min-height: 42px;
  padding-inline: 22px;
  font-size: 0.875rem;
}

.btn--light {
  background-color: #fff;
  border-color: #fff;
  color: var(--color-primary);

  &:hover {
    background-color: #e7efe9;
    border-color: #e7efe9;
    color: var(--color-primary);
  }
}

.btn--outline-light {
  background-color: transparent;
  border-color: rgb(255 255 255 / 0.55);
  color: #fff;

  &:hover {
    background-color: rgb(255 255 255 / 0.12);
    border-color: #fff;
    color: #fff;
  }
}

/* =========================================================
   Header（PCレイアウトが既定値。ドロワーは末尾のSP専用ブロックのみ）
   ========================================================= */
.header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  /* filter系プロパティは position:fixed の含有ブロックを作り、
     ドロワーがビューポート基準で広がらなくなるため使わない */
  background-color: var(--color-bg);
  border-block-end: 1px solid transparent;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.header.is-scrolled {
  border-block-end-color: var(--color-line);
  box-shadow: 0 2px 20px rgb(15 58 46 / 0.06);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(100% - var(--gutter) * 2, var(--container-wide));
  min-height: var(--header-h);
  margin-inline: auto;
}

.header__logo {
  display: block;
  line-height: 1;

  & img {
    inline-size: auto;
    block-size: clamp(26px, 2.4vw, 34px);
  }
}

.header__burger {
  display: none;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.9vw, 30px);
}

.nav__link {
  display: inline-block;
  position: relative;
  padding-block: 6px;
  color: var(--color-primary);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;

  &::after {
    content: "";
    position: absolute;
    inset-block-end: 0;
    inset-inline-start: 0;
    inline-size: 100%;
    block-size: 1px;
    background-color: var(--color-accent);
    scale: 0 1;
    transform-origin: left center;
    transition: scale 0.3s var(--ease);
  }

  &:hover::after {
    scale: 1 1;
  }
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: clamp(500px, 74vh, 720px);
  overflow: hidden;
  background-color: var(--color-primary-deep);
}

.hero__slider {
  position: absolute;
  inset: 0;

  &::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgb(9 36 32 / 0.88) 0%, rgb(9 36 32 / 0.66) 48%, rgb(9 36 32 / 0.36) 100%);
  }
}

.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.4s var(--ease);

  & img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
  }
}

.hero__slide.is-active {
  opacity: 1;
}

.hero__slide.is-active img {
  animation: hero-zoom 9s var(--ease) forwards;
}

@keyframes hero-zoom {
  from {
    scale: 1;
  }
  to {
    scale: 1.06;
  }
}

.hero__inner {
  position: relative;
  z-index: 1;
  width: min(100% - var(--gutter) * 2, var(--container));
  margin-inline: auto;
  padding-block: clamp(72px, 9vw, 112px);
  color: #fff;
}

.hero__eyebrow {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.hero__title {
  margin-block: 20px 26px;
  font-size: clamp(1.875rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.05em;
}

.hero__lead {
  max-width: 42em;
  font-size: 0.9375rem;
  color: rgb(255 255 255 / 0.88);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-block-start: 40px;
}

.hero__controls {
  position: absolute;
  z-index: 1;
  inset-block-end: clamp(20px, 3vw, 36px);
  inset-inline-end: var(--gutter);
  display: flex;
  align-items: center;
  gap: 20px;
}

.hero__dots {
  display: flex;
  gap: 10px;
}

.hero__dot {
  position: relative;
  display: block;
  inline-size: 30px;
  block-size: 2px;
  padding: 0;
  border: 0;
  background-color: rgb(255 255 255 / 0.4);
  cursor: pointer;
  transition: background-color 0.3s var(--ease);

  /* タップ領域を確保する */
  &::before {
    content: "";
    position: absolute;
    inset: -16px -5px;
  }

  &:hover {
    background-color: rgb(255 255 255 / 0.8);
  }
}

.hero__dot.is-current {
  background-color: var(--color-accent);
}

.hero__toggle {
  display: grid;
  place-items: center;
  inline-size: 30px;
  block-size: 30px;
  padding: 0;
  border: 1px solid rgb(255 255 255 / 0.5);
  border-radius: 50%;
  background-color: transparent;
  color: #fff;
  cursor: pointer;
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease);

  &:hover {
    background-color: rgb(255 255 255 / 0.14);
    border-color: #fff;
  }
}

.hero__toggle-icon {
  inline-size: 9px;
  block-size: 10px;
  border-inline: 3px solid currentColor;
}

.hero__toggle[aria-pressed="true"] .hero__toggle-icon {
  inline-size: 0;
  block-size: 0;
  border-inline-start: 9px solid currentColor;
  border-inline-end: 0;
  border-block-start: 5px solid transparent;
  border-block-end: 5px solid transparent;
  margin-inline-start: 2px;
}

.hero__toggle-text {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.hero__controls :focus-visible {
  outline-color: #fff;
}

/* =========================================================
   Message
   ========================================================= */
.message__inner {
  display: grid;
  gap: clamp(32px, 4vw, 64px);
}

.message__body p + p {
  margin-block-start: 1.6em;
}

.message__body p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.message__sign {
  margin-block-start: 2.4em;
  padding-block-start: 1.6em;
  border-block-start: 1px solid var(--color-line);
}

.message__company {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.message__name {
  display: block;
  margin-block-start: 4px;
  color: var(--color-primary);
  font-size: 1.0625rem;
  font-weight: 500;
  letter-spacing: 0.06em;
}

@media (width >= 768px) {
  .message__inner {
    grid-template-columns: 36% 1fr;
    align-items: start;
  }

  .message__body p {
    font-size: 1rem;
  }
}

/* =========================================================
   Service
   ========================================================= */
.service__list {
  display: grid;
  gap: clamp(20px, 2.4vw, 28px);
}

.service__card {
  padding: clamp(28px, 3.4vw, 44px);
  border: 1px solid var(--color-line);
  background-color: var(--color-bg);
}

.service__num {
  font-family: var(--font-en);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--color-eyebrow);
}

.service__title {
  margin-block: 10px 14px;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--color-primary);
}

.service__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.service__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-block-start: 22px;

  & li {
    padding: 3px 14px;
    border: 1px solid var(--color-line);
    border-radius: 999px;
    background-color: var(--color-bg-soft);
    font-size: 0.75rem;
    line-height: 1.9;
    letter-spacing: 0.04em;
    color: var(--color-text-muted);
  }
}

@media (width >= 768px) {
  .service__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* =========================================================
   About
   ========================================================= */
.about__list {
  display: grid;
  gap: clamp(32px, 3.4vw, 44px);
}

.about__item {
  padding-block-start: 24px;
  border-block-start: 1px solid var(--color-line);
}

.about__num {
  font-family: var(--font-en);
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-eyebrow);
}

.about__title {
  margin-block: 6px 14px;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--color-primary);
}

.about__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

@media (width >= 768px) {
  .about__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* =========================================================
   Company
   ========================================================= */
.company__list {
  border-block-start: 1px solid var(--color-line);
}

.company__row {
  padding-block: 20px;
  border-block-end: 1px solid var(--color-line);
}

.company__label {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.company__value {
  margin-block-start: 4px;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

@media (width >= 768px) {
  .company__row {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 24px;
    padding-block: 24px;
  }

  .company__value {
    margin-block-start: 0;
  }
}

/* =========================================================
   Contact
   ========================================================= */
.contact {
  background-color: var(--color-primary);
  background-image: radial-gradient(circle at 82% 18%, rgb(140 198 63 / 0.16), transparent 58%);
}

.contact__inner {
  text-align: center;
}

.contact__lead {
  margin-block-start: 26px;
  font-size: 0.9375rem;
  color: rgb(255 255 255 / 0.86);
}

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-block-start: 40px;
}

.contact :focus-visible {
  outline-color: #fff;
}

/* =========================================================
   Footer
   ========================================================= */
.footer {
  border-block-start: 1px solid var(--color-line);
}

.footer__inner {
  display: grid;
  gap: 36px;
  padding-block: clamp(44px, 5vw, 64px);
}

.footer__logo {
  inline-size: auto;
  block-size: 30px;
}

.footer__address {
  margin-block-start: 20px;
  font-size: 0.8125rem;
  line-height: 2;
  color: var(--color-text-muted);
}

.footer__list {
  display: grid;
  gap: 12px;
}

.footer__link {
  font-size: 0.875rem;
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s var(--ease);

  &:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
    text-underline-offset: 0.25em;
  }
}

.footer__copyright {
  padding-block: 20px;
  border-block-start: 1px solid var(--color-line);
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-align: center;
  color: var(--color-text-muted);
}

@media (width >= 768px) {
  .footer__inner {
    grid-template-columns: 1fr auto;
    align-items: start;
    gap: 48px;
  }

  .footer__list {
    grid-template-columns: repeat(3, auto);
    gap: 14px 32px;
  }
}

/* =========================================================
   Drawer（画面表示かつ幅768px未満専用）
   ハンバーガーと開閉状態（.is-open / aria-expanded）のスタイルは
   このブロックの外に一切書かない。768px以上と印刷時はドロワー系の
   宣言が存在しないため、詳細度の衝突でメニューが露出することがない。
   ========================================================= */
@media screen and (width < 768px) {
  .header__burger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 4px;
    border: 0;
    background-color: transparent;
    color: var(--color-primary);
    cursor: pointer;
  }

  .header__burger-box {
    display: grid;
    gap: 5px;
    inline-size: 22px;
  }

  .header__burger-bar {
    display: block;
    block-size: 1.5px;
    background-color: currentColor;
    transition: translate 0.3s var(--ease), rotate 0.3s var(--ease), opacity 0.2s var(--ease);
  }

  .header__burger-text {
    font-family: var(--font-en);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.12em;
  }

  .header__burger[aria-expanded="true"] .header__burger-bar:nth-child(1) {
    translate: 0 6.5px;
    rotate: 45deg;
  }

  .header__burger[aria-expanded="true"] .header__burger-bar:nth-child(2) {
    opacity: 0;
  }

  .header__burger[aria-expanded="true"] .header__burger-bar:nth-child(3) {
    translate: 0 -6.5px;
    rotate: -45deg;
  }

  .header__nav {
    position: fixed;
    inset: var(--header-h) 0 0;
    padding: 8px var(--gutter) 48px;
    overflow-y: auto;
    overscroll-behavior: contain;
    background-color: var(--color-bg);
    opacity: 0;
    visibility: hidden;
    translate: 0 -10px;
    transition: opacity 0.3s var(--ease), translate 0.3s var(--ease), visibility 0.3s var(--ease);
  }

  .header__nav.is-open {
    opacity: 1;
    visibility: visible;
    translate: 0 0;
  }

  .nav__list {
    display: block;
  }

  .nav__link {
    display: block;
    padding-block: 18px;
    border-block-end: 1px solid var(--color-line);
    font-size: 1rem;

    &::after {
      content: none;
    }
  }

  .nav__item--cta {
    margin-block-start: 28px;
  }

  .nav__item--cta .btn {
    inline-size: 100%;
  }

  body.is-nav-open {
    overflow: hidden;
  }

  @media (prefers-reduced-motion: reduce) {
    .header__nav {
      transition: none;
    }
  }
}

/* =========================================================
   Reduced motion
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero__slide {
    transition: none;
  }

  .hero__slide.is-active img {
    animation: none;
  }
}

/* =========================================================
   Print
   ========================================================= */
@media print {
  body {
    padding-top: 0;
  }

  .header {
    position: static;
    border-block-end: 1px solid var(--color-line);
  }

  .hero {
    min-height: auto;
  }

  .skip-link,
  .hero__controls {
    display: none;
  }
}