/* =========================================================
   ヘッダー・ナビ・フッター・共通コンテナの配置
========================================================= */

/* =========================================================
   01. SITE HEADER
========================================================= */

.sf-header {
  position: sticky;
  z-index: 1000;
  top: 0;

  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(222, 216, 202, 0.75);

  -webkit-backdrop-filter: blur(12px);

  backdrop-filter: blur(12px);
}

.sf-header__inner {
  display: flex;

  align-items: center;

  width: min(calc(100% - 48px), 1240px);
  min-height: 76px;

  gap: 36px;

  margin: auto;
}

/* =========================================================
   Brand
========================================================= */

.sf-brand {
  display: flex;

  flex-direction: column;

  margin-right: auto;
}

.sf-brand__name {
  font: 600 29px/1 var(--sf-script);
  letter-spacing: 0.02em;
}

.sf-brand__tagline {
  margin-top: 8px;

  font-size: 9px;
  letter-spacing: 0.14em;
}

.sf-brand .custom-logo {
  width: auto;
  max-height: 52px;
}

/* =========================================================
   Desktop navigation
========================================================= */

.sf-desktop-nav__list,
.sf-menu-fallback {
  display: flex;

  align-items: center;
  gap: 26px;

  margin: 0;
  padding: 0;

  list-style: none;
}

.sf-desktop-nav a {
  font: 500 13px/1 var(--sf-serif);
  white-space: nowrap;

  transition: color 0.2s ease;
}

/* =========================================================
   Header actions
========================================================= */

.sf-header__actions {
  display: flex;

  gap: 8px;
}

.sf-icon-button {
  display: grid;

  width: 42px;
  height: 42px;

  padding: 0;

  place-items: center;

  color: inherit;
  background: transparent;
  border: 0;

  cursor: pointer;
}

/* =========================================================
   Search icon
========================================================= */

.sf-search-icon {
  position: relative;
  display: block;

  width: 18px;
  height: 18px;

  margin: auto;

  border: 1.5px solid currentColor;
  border-radius: 50%;
}

.sf-search-icon::after {
  position: absolute;
  right: -5px;
  bottom: -2px;

  width: 7px;
  height: 1.5px;

  background: currentColor;

  content: "";

  transform: rotate(45deg);
}

/* =========================================================
   Mobile menu button
========================================================= */

.sf-menu-toggle {
  display: none;

  padding: 10px;
}

.sf-menu-toggle span {
  display: block;

  height: 1px;

  margin: 5px 0;

  background: currentColor;
}

.sf-mobile-category {
  display: none;
}

/* =========================================================
   Keyboard focus
========================================================= */

.sf-icon-button:focus-visible,
.sf-desktop-nav a:focus-visible {
  outline: 2px solid var(--sf-gold);
  outline-offset: 4px;
}

/* =========================================================
   02. SEARCH PANEL
========================================================= */

.sf-search-panel {
  position: fixed;
  z-index: 1200;
  inset: 0;

  color: #fff;
  background: rgba(23, 63, 56, 0.92);

  -webkit-backdrop-filter: blur(8px);

  backdrop-filter: blur(8px);
}

.sf-search-panel__inner {
  width: min(calc(100% - 40px), 720px);

  margin: 20vh auto 0;

  text-align: center;
}

.sf-search-panel__inner > p {
  color: var(--sf-gold-soft);

  letter-spacing: 0.25em;
}

.sf-search-form {
  display: flex;

  gap: 10px;
}

.sf-search-form input {
  flex: 1;

  min-width: 0;

  padding: 15px 18px;

  background: #fff;
  border: 1px solid var(--sf-line);
  border-radius: 0;
}

.sf-search-form button {
  min-width: 90px;

  padding: 0 18px;

  color: #fff;
  background: var(--sf-gold);
  border: 0;

  cursor: pointer;

  transition: background-color 0.2s ease,
    transform 0.2s ease;
}

.sf-search-close {
  margin-top: 22px;
  padding: 8px 14px;

  color: #fff;
  background: transparent;
  border: 0;

  cursor: pointer;
}

.sf-search-form input:focus-visible,
.sf-search-form button:focus-visible,
.sf-search-close:focus-visible {
  outline: 2px solid var(--sf-gold-soft);
  outline-offset: 3px;
}

.sf-mobile-drawer,
.sf-drawer-overlay {
  display: none;
}

/* =========================================================
   03. SITE FOOTER
========================================================= */

.sf-footer {
  margin-top: 40px;

  color: rgba(255, 255, 255, 0.82);
  background: var(--sf-green-dark);
}

.sf-footer__inner {
  width: min(calc(100% - 48px), var(--sf-container));

  margin: auto;
  padding: 65px 0 24px;
}

/* =========================================================
   Footer brand
========================================================= */

.sf-footer__brand > a {
  color: #fff;

  font: 600 34px/1 var(--sf-script);
}

.sf-footer__brand p {
  max-width: 480px;

  margin: 18px 0 45px;

  font-size: 13px;
}

/* =========================================================
   Footer navigation
========================================================= */

.sf-footer__columns {
  display: grid;

  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 38px;

  padding: 35px 0;

  border-block: 1px solid rgba(255, 255, 255, 0.18);
}

.sf-footer__columns h2 {
  margin: 0 0 16px;

  color: var(--sf-gold-soft);

  font: 600 11px/1 var(--sf-sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.sf-footer__columns a {
  display: block;

  width: max-content;
  max-width: 100%;

  margin: 10px 0;

  font-size: 13px;

  transition: color 0.2s ease;
}

.sf-footer__bottom {
  display: flex;

  justify-content: space-between;
  gap: 20px;

  padding-top: 22px;

  font-size: 11px;
}

/* =========================================================
   04. BACK TO TOP
========================================================= */

.sf-back-to-top {
  position: fixed;
  z-index: 80;
  right: 24px;
  bottom: 24px;
  display: grid;

  width: 60px;
  height: 60px;

  padding: 0;

  place-items: center;
  align-content: center;
  gap: 3px;

  color: #fffaf0;
  background: rgba(20, 76, 67, 0.96);
  border: 1px solid #d2ae67;
  border-radius: 50%;
  box-shadow: 0 12px 30px rgba(13, 55, 47, 0.22), inset 0 0 0 4px rgba(255, 250, 240, 0.08);

  cursor: pointer;

  opacity: 0;

  pointer-events: none;

  transform: translateY(16px);
  transition: opacity 0.25s ease,
    transform 0.25s ease,
    color 0.25s ease,
    background-color 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease;
}

.sf-back-to-top.is-visible {
  opacity: 1;

  pointer-events: auto;

  transform: translateY(0);
}

.sf-back-to-top span {
  color: #e2c27e;

  font: 400 20px/0.9 var(--sf-serif);

  transition: color 0.25s ease,
    transform 0.25s ease;
}

.sf-back-to-top small {
  color: rgba(255, 250, 240, 0.9);

  font-size: 7px;
  font-weight: 700;
  letter-spacing: 0.2em;

  transform: translateX(0.1em);
}

.sf-back-to-top:focus-visible {
  outline: 2px solid var(--sf-gold);
  outline-offset: 4px;
}

/* =========================================================
   05. ARCHIVE / CATEGORY HERO
========================================================= */

.sf-archive-hero,
.sf-category-hero {
  margin-bottom: 60px;
  padding: 75px 0;

  text-align: center;

  background: #eeeae1;
}

.sf-archive-hero h1,
.sf-category-hero h1 {
  margin: 10px 0;

  font-size: clamp(30px, 4vw, 52px);
}

/* =========================================================
   06. ARTICLE CARD GRID
========================================================= */

.sf-card-grid,
.sf-latest-grid {
  display: grid;

  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.sf-card {
  overflow: hidden;

  background: #fff;
  border: 1px solid #e7e1d6;

  transition: transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}

/* =========================================================
   Card image
========================================================= */

.sf-card__media {
  display: block;
  overflow: hidden;

  aspect-ratio: 16 / 9;

  background: #e8e4da;
}

.sf-card__media img {
  width: 100%;
  height: 100%;

  object-fit: cover;

  transition: transform 0.45s ease;
}

.sf-card__placeholder {
  display: grid;

  height: 100%;

  place-items: center;

  color: var(--sf-green);

  font-family: var(--sf-script);
}

/* =========================================================
   Card content
========================================================= */

.sf-card__body {
  padding: 22px;
}

.sf-card__meta {
  display: flex;

  justify-content: space-between;
  gap: 15px;

  color: #8b8c86;

  font-size: 10px;
  letter-spacing: 0.08em;
}

.sf-card__title {
  margin: 12px 0 10px;

  font-size: 19px;
  line-height: 1.6;
}

.sf-card__body > p {
  color: var(--sf-muted);

  font-size: 13px;
  line-height: 1.85;
}

.sf-text-link {
  color: var(--sf-green);

  font-size: 10px;
  letter-spacing: 0.12em;
}

/* =========================================================
   07. PAGINATION
========================================================= */

.navigation.pagination {
  margin-top: 50px;

  text-align: center;
}

.nav-links .page-numbers {
  display: inline-grid;

  width: 42px;
  height: 42px;

  margin: 3px;

  place-items: center;

  border: 1px solid var(--sf-line);

  transition: color 0.2s ease,
    background-color 0.2s ease,
    border-color 0.2s ease;
}

.nav-links .current {
  color: #fff;
  background: var(--sf-green);
  border-color: var(--sf-green);
}

/* =========================================================
   08. STANDARD PAGE
========================================================= */

.sf-page__article {
  width: min(calc(100% - 48px), var(--sf-narrow));

  margin: 70px auto;
}

.sf-page__header {
  margin-bottom: 45px;

  text-align: center;
}

.sf-page__header h1 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.45;
}

.sf-page__content {
  line-height: 2;
}

/* =========================================================
   09. ERROR PAGE
========================================================= */

.sf-error {
  padding: 120px 0;

  text-align: center;
}

.sf-error .sf-search-form {
  max-width: 600px;

  margin: 40px auto;
}

/* =========================================================
   10. POINTER HOVER
   マウス操作ができる端末だけに適用
========================================================= */

@media (hover: hover) {
  .sf-desktop-nav a:hover {
    color: var(--sf-green);
  }

  .sf-search-form button:hover {
    background: var(--sf-green);

    transform: translateY(-2px);
  }

  .sf-footer__columns a:hover {
    color: #fff;
  }

  .sf-back-to-top:hover {
    color: var(--sf-green-dark);
    background: #e1c27d;
    border-color: #e1c27d;
    box-shadow: 0 17px 34px rgba(13, 55, 47, 0.28), inset 0 0 0 4px rgba(255, 255, 255, 0.2);

    transform: translateY(-5px);
  }

  .sf-back-to-top:hover span,
  .sf-back-to-top:hover small {
    color: var(--sf-green-dark);
  }

  .sf-back-to-top:hover span {
    transform: translateY(-2px);
  }

  .sf-card:hover {
    border-color: rgba(15, 111, 99, 0.24);
    box-shadow: var(--sf-shadow);

    transform: translateY(-4px);
  }

  .sf-card:hover .sf-card__media img {
    transform: scale(1.035);
  }

  .nav-links a.page-numbers:hover {
    color: #fff;
    background: var(--sf-green);
    border-color: var(--sf-green);
  }
}