/* ==========================================================================
   layout.css — Header, Footer, Container, Section, Grid
   ========================================================================== */

/* ---------- Section ---------- */
.l-section {
  padding-block: 120px;
}

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

.l-section--whiteBg {
  background: var(--color-white);
}

@media screen and (max-width: 767px) {
  .l-section {
    padding-block: calc(100 / 375 * 100vw);
  }
}

/* ---------- Container ---------- */
.l-container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 40px;
}

@media screen and (max-width: 767px) {
  .l-container {
    padding-inline: calc(20 / 375 * 100vw);
  }
}

/* ==========================================================================
  header
========================================================================== */
.l-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #d9d9d9;
  display: flex;
  align-items: center;
  padding-inline: 80px;
  gap: 40px;
  @media screen and (max-width: 768px) {
    padding-inline: 0;
    height: 70px;
  }
}

.l-header__logo {
  margin-inline-end: auto;
  @media screen and (max-width: 768px) {
    padding-inline-start: calc(20 / 375 * 100vw);
  }
}

.l-header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

@media screen and (max-width: 767px) {
  .l-header__nav {
    position: fixed;
    top: var(--header-h-sp);
    left: 0;
    right: 0;
    height: 80dvh;
    background: rgba(255, 255, 255, 0.98);
    padding: calc(50 / 375 * 100vw);
    overflow: auto;
    opacity: 0;
    transform: translateY(-10px);
    visibility: hidden;
    pointer-events: none;
    transition:
      opacity 0.28s ease,
      transform 0.28s ease,
      visibility 0s linear 0.28s;
  }

  .l-header.is-navOpen .l-header__nav {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
    transition:
      opacity 0.28s ease,
      transform 0.28s ease,
      visibility 0s linear 0s;
    align-items: flex-start;
  }

  .l-header.is-navOpen .c-navToggle__bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  .l-header.is-navOpen .c-navToggle__bar:nth-child(2) {
    opacity: 0;
  }
  .l-header.is-navOpen .c-navToggle__bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  .l-header.is-navOpen .c-nav__list > li {
    opacity: 1;
    transform: translateY(0);
  }

  .l-header.is-navOpen .c-nav__list > li:nth-child(1) {
    transition-delay: 0.06s;
  }
  .l-header.is-navOpen .c-nav__list > li:nth-child(2) {
    transition-delay: 0.1s;
  }
  .l-header.is-navOpen .c-nav__list > li:nth-child(3) {
    transition-delay: 0.14s;
  }
  .l-header.is-navOpen .c-nav__list > li:nth-child(4) {
    transition-delay: 0.18s;
  }
  .l-header.is-navOpen .c-nav__list > li:nth-child(5) {
    transition-delay: 0.22s;
  }

  @media (prefers-reduced-motion: reduce) {
    .l-header__nav,
    .c-nav__list > li,
    .c-navToggle__bar {
      transition: none !important;
    }
  }
}

/* ---------- Footer ---------- */
.l-footer {
  background: var(--color-bg2);
  color: var(--color-white);
  padding: 350px 100px 20px;
  padding-inline: 40px;
  border-radius: 30px 30px 0 0;
}

.l-footer__info {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
}

.l-footer__inner {
  max-width: var(--container-max);
  padding-inline: 40px;
  margin-inline: auto;
}

.l-footer__bottom {
  position: relative;
  max-width: var(--container-max);
  padding-inline: 40px;
  margin-inline: auto;
  margin-block-start: var(--sp-12);
  padding-block-start: var(--sp-12);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: var(--sp-3);
}

.l-footer__bottom::after {
  content: "";
  width: 100vw;
  height: 1px;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-white);
}

.l-footer__copyright {
  width: 100%;
  text-align: center;
  margin-block-start: 64px;
}

@media (max-width: 767px) {
  .l-footer {
    padding-block: calc(145 / 375 * 100vw) calc(50 / 375 * 100vw);
    padding-inline: calc(20 / 375 * 100vw);
    border-radius: var(--radius-base-sp) var(--radius-base-sp) 0 0;
  }

  .l-footer__inner {
    padding-inline: 0;
  }

  .l-footer__bottom {
    padding-inline: 0;
    gap: calc(10 / 375 * 100vw);
  }

  .l-footer__info {
    justify-content: space-between;
  }
}

/* ---------- Two-column grid ---------- */
.l-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

@media (max-width: 767px) {
  .l-grid-2 {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* ---------- Three-column grid ---------- */
.l-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 767px) {
  .l-grid-3 {
    grid-template-columns: 1fr;
    gap: calc(50 / 375 * 100vw);
  }
}

/* ---------- Page offset for fixed header ---------- */
.l-page-top {
  margin-block-start: var(--header-h);
}

@media screen and (max-width: 767px) {
  .l-page-top {
    margin-block-start: var(--header-h-sp);
  }
}

/* ---------- hero ---------- */
.l-hero {
  padding-block-start: 120px;
}

.l-hero__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 40px;
}

@media screen and (max-width: 767px) {
  .l-hero {
    padding-block-start: calc(60 / 375 * 100vw);
  }
}

/* ---------- works ---------- */
.l-section--works {
  position: relative;
  overflow: hidden;
  color: var(--color-white);
  border-radius: var(--radius-base);
}

@media screen and (max-width: 767px) {
  .l-section--works {
    border-radius: var(--radius-base-sp);
  }
}

/* ---------- contact ---------- */
.l-section--cta {
  position: relative;
  max-width: 1280px;
  width: 85%;
  margin-inline: auto;
  border-radius: var(--radius-base);
  overflow: hidden;
  padding-block: 0;
  margin-block-end: -200px;
  background: var(--color-primary);
  z-index: 1;
  .l-container {
    padding-inline: 60px;
  }
}

@media screen and (max-width: 767px) {
  .l-section--cta {
    width: calc(335 / 375 * 100%);
    max-width: 100%;
    margin-block-end: calc(-100 / 375 * 100%);
    border-radius: var(--radius-base-sp);
    .l-container {
      padding-inline: calc(30 / 375 * 100%);
    }
  }
}

/* ---------- message ---------- */
.l-section--message {
  position: relative;
  background: var(--color-bg);
  border-radius: var(--radius-base);
}

@media screen and (max-width: 767px) {
  .l-section--message {
    padding-block: calc(60 / 375 * 100vw);
    border-radius: var(--radius-base-sp);
    overflow-x: clip;
  }
}