/* ==========================================================================
   Theme Core Layout & Typography Styles
   ========================================================================== */

:root {
  --primary-font: "Inter", "Sawarabi Gothic", sans-serif;
  --text-color: #333333;
  --border-color: #333333;
  --overlay-bg: rgba(255, 255, 255, 0.7); /* 半透明白マスク */
  --transition-speed: 0.3s;
}

body, p, h1, h2, h3, h4, h5, h6, a, span, div, li {
  font-family: var(--primary-font);
}

/* --- Container --- */
.site-container {
  display: block;
  min-height: 100vh;
  width: 100%;
  position: relative;
}

/* ==========================================================================
   Sidebar Navigation (Left Column)
   ========================================================================== */
.site-sidebar {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  width: 8%;
  max-width: 8%;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  padding: 30px 0 0 10px;
  background-color: transparent;
  z-index: 100;
}

.sidebar-logo {
  height: 30%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  width: 100%;
  min-height: 0;
}

.sidebar-logo a {
  display: block;
  height: 100%;
  width: 100%;
  text-align: center;
  transition: opacity var(--transition-speed) ease;
}

.sidebar-logo a:hover {
  opacity: 0.5;
}

.sidebar-logo img {
  width: auto;
  height: 100%;
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.sidebar-nav-container {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  height: 45%;
  margin-top: 50px;
  width: 100%;
  align-items: center;
}

.sidebar-menu {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5vh;
  width: auto;
}

.sidebar-menu li {
  width: 100%;
}

.sidebar-menu a {
  display: inline-block;
  font-family: var(--primary-font);
  font-size: 1.5vh;
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1;
  color: var(--text-color);
  border: 1px solid transparent;
  padding: 1px;
  transition: border-color var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

.sidebar-menu a:hover,
.sidebar-menu li.current-menu-item a,
.sidebar-menu li.current-post-parent a {
  border-color: var(--border-color);
}

/* ABOUT / CONTACT Links (Distinct Styling in Original) */
.sidebar-menu li.menu-item-about {
  margin-top: 3vh; /* WEB/SPACEとABOUTの隙間を通常gapの倍（3vh）に調整 */
}

.sidebar-menu li.menu-item-about a,
.sidebar-menu li.menu-item-contact a {
  font-weight: 400;
  letter-spacing: 0;
  margin-top: 5px;
}

/* Instagram Menu Item */
.sidebar-menu li.menu-item-instagram {
  margin-top: 15px;
  width: auto;
}

.sidebar-menu li.menu-item-instagram a {
  border: 1px solid transparent !important;
  font-size: 24px;
  padding: 4px 8px;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  width: auto;
}

.sidebar-menu li.menu-item-instagram a:hover {
  opacity: 0.5;
  border-color: transparent !important;
}

/* ==========================================================================
   Main Content Area (Right Column)
   ========================================================================== */
.site-main {
  width: 92%;
  max-width: 92%;
  margin-left: 8%;
  padding: 30px 15px 30px 30px;
  position: relative;
  min-height: 100vh;
}

/* --- Works Grid --- */
.works-grid {
  position: relative;
  width: 100%;
  display: block;
}

.work-card {
  position: absolute;
  display: block;
  width: calc(33.333% - 10px);
  margin-bottom: 15px;
  overflow: hidden;
}

/* 画像サイズに合わせてアスペクト比を維持 */
.work-card img {
  width: 100%;
  height: auto;
  display: block;
}

/* --- Card Overlay --- */
.work-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.7); /* ホバー時の半透明白背景 */
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 50px 30px;
  transition: opacity var(--transition-speed) cubic-bezier(0.4, 0.4, 0, 1);
  z-index: 2;
}

.work-card:hover .work-overlay {
  opacity: 1;
}

.work-overlay-title {
  font-family: var(--primary-font);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1;
  color: var(--text-color);
  margin-bottom: 10px;
}

.work-overlay-meta {
  font-family: var(--primary-font);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.2;
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 100%;
  padding: 15px 15px 30px 0;
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  pointer-events: none; /* 下層の要素のクリックを妨げない */
  z-index: 10;
}

.footer-copyright {
  font-family: var(--primary-font);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--text-color);
  pointer-events: auto;
}

/* ==========================================================================
   Case Detail Page (single-work.php)
   ========================================================================== */
.case-detail-container {
  display: flex;
  flex-direction: column;
  width: 100%;
  align-items: center;
}

/* Sticky top header info */
.case-meta-header {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: #ffffff;
  padding: 16px 30px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-bottom: 1px solid transparent;
  z-index: 99;
}

.case-meta-left {
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 15px;
}

.case-client {
  font-family: var(--primary-font);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--text-color);
}

.case-title {
  font-family: var(--primary-font);
  font-size: 36px;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--text-color);
}

.case-year {
  font-family: var(--primary-font);
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 0.05em;
  line-height: 1;
  color: var(--text-color);
  text-align: right;
}

/* Case visuals grid */
.case-visuals {
  width: 100%;
  padding: 0 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.case-main-image {
  max-height: calc(100vh - 120px);
  width: auto;
  max-width: 100%;
  object-fit: contain;
  margin: 0 auto;
  display: block;
}

.case-gallery {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  gap: 50px;
  width: 100%;
  margin-top: 30px;
}

.case-gallery-item {
  width: calc(50% - 25px); /* 2カラム */
  height: auto;
  object-fit: cover;
  display: block;
}

.case-description {
  width: 100%;
  margin: 50px 0 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-color);
  text-align: left;
}

/* ==========================================================================
   ABOUT Page
   ========================================================================== */
.about-content-wrapper {
  padding: 80px 30px 80px 50px;
  display: flex;
  flex-direction: column;
  gap: 50px;
}

.about-intro-text {
  font-family: var(--primary-font);
  font-size: 18px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text-color);
}

.about-info-grid {
  display: flex;
  flex-direction: column;
  gap: 30px;
  width: 100%;
}

.about-office-name {
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  gap: 5px;
}

.about-office-name .english {
  font-family: var(--primary-font);
  font-size: 20px;
  font-weight: 500;
  line-height: 1;
}

.about-office-name .japanese {
  font-family: var(--primary-font);
  font-size: 25px;
  font-weight: 500;
  line-height: 1;
}

.about-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-detail-item {
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  gap: 10px;
}

.about-detail-label {
  font-family: var(--primary-font);
  font-size: 20px;
  font-weight: 500;
  line-height: 1;
  width: 120px;
}

.about-detail-value {
  font-family: var(--primary-font);
  font-size: 16px;
  line-height: 1.4;
}

.about-detail-value span.sub {
  font-size: 16px;
  font-weight: 500;
  margin-left: 5px;
}

.about-map-frame {
  width: 100%;
  height: 60vh;
  margin-top: 30px;
}

.about-map-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ==========================================================================
   CONTACT Page
   ========================================================================== */
.contact-content-wrapper {
  padding: 80px 30px 80px 50px;
  display: flex;
  flex-direction: column;
  gap: 50px;
  min-height: calc(100vh - 120px);
}

.contact-intro-text {
  font-family: var(--primary-font);
  font-size: 18px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text-color);
}

/* --- Contact Form Styles --- */
.contact-form {
  max-width: 600px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 25px;
  margin-top: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.form-label {
  font-family: var(--primary-font);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-color);
}

.form-input {
  font-family: var(--primary-font);
  font-size: 16px;
  padding: 10px 12px;
  border: 1px solid #cccccc;
  background-color: #ffffff;
  color: var(--text-color);
  width: 100%;
  outline: none;
  transition: border-color var(--transition-speed) ease;
}

.form-input:focus {
  border-color: var(--border-color);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-submit {
  font-family: var(--primary-font);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 30px;
  background-color: var(--text-color);
  color: #ffffff;
  border: 1px solid var(--text-color);
  align-self: flex-start;
  cursor: pointer;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

.form-submit:hover {
  background-color: #ffffff;
  color: var(--text-color);
}

@media (max-width: 540px) {
  .contact-form {
    gap: 20px;
  }
  .form-input {
    font-size: 14px;
    padding: 8px 10px;
  }
  .form-submit {
    width: 100%;
    text-align: center;
  }
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

/* --- 1140px Breakdown --- */
@media (max-width: 1140px) {
  .site-sidebar {
    width: 12%;
    max-width: 12%;
  }
  .site-main {
    margin-left: 12%;
    width: 88%;
    max-width: 88%;
  }
  
  /* Grid switches to 2 columns for tablet */
  .work-card {
    width: calc(50% - 7.5px);
  }
}

/* --- 840px Breakdown --- */
@media (max-width: 840px) {
  .site-sidebar {
    width: 15%;
    max-width: 15%;
  }
  .site-main {
    margin-left: 15%;
    width: 85%;
    max-width: 85%;
  }
  
  .sidebar-logo {
    height: 25%;
  }
  
  /* Footer relative flow */
  .site-footer {
    position: relative;
    bottom: auto;
    right: auto;
    padding: 30px 0 0 0;
    justify-content: flex-end;
  }
  
  /* Case detail font adjustment */
  .case-client {
    font-size: 18px;
  }
  .case-title {
    font-size: 24px;
  }
  .case-year {
    font-size: 14px;
  }
  
  /* About text size adjustment */
  .about-intro-text {
    font-size: 16px;
  }
  .about-office-name .english {
    font-size: 18px;
  }
  .about-office-name .japanese {
    font-size: 22px;
  }
}

/* --- 540px Breakdown (Mobile Split Screen Layout) --- */
@media (max-width: 540px) {
  .site-sidebar {
    width: 30%;
    max-width: 30%;
  }
  .site-main {
    margin-left: 30%;
    width: 70%;
    max-width: 70%;
    padding: 30px 15px;
  }
  
  .sidebar-logo {
    height: 25%;
  }
  
  .sidebar-logo img {
    height: 100%;
  }
  
  .sidebar-nav-container {
    gap: 20px;
    justify-content: flex-start;
  }
  
  .sidebar-menu a {
    font-size: 14px;
  }
  
  .sidebar-menu li.menu-item-instagram a {
    font-size: 20px;
  }
  
  /* Grid switch to 1 column for mobile */
  .work-card {
    width: 100% !important;
    position: relative !important;
    left: auto !important;
    top: auto !important;
  }
  
  /* Card Hover Overlay details on mobile */
  .work-overlay {
    padding: 20px 15px;
  }
  .work-overlay-title {
    font-size: 14px;
  }
  
  /* Case detail mobile breakdown */
  .case-meta-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 16px 15px;
  }
  .case-year {
    text-align: left;
    font-size: 12px;
  }
  .case-visuals {
    padding: 0 15px;
  }
  .case-main-image {
    width: 100%;
    height: auto;
    max-height: none;
  }
  .case-gallery {
    gap: 15px;
  }
  .case-gallery-item {
    width: 100%; /* ギャラリーも1列 */
  }
  
  /* About Mobile layout adjustments */
  .about-content-wrapper {
    padding: 30px 20px 30px 15px;
  }
  .about-intro-text {
    font-size: 12px;
  }
  .about-office-name .english {
    font-size: 16px;
  }
  .about-office-name .japanese {
    font-size: 20px;
  }
  .about-detail-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
  }
  .about-detail-label {
    font-size: 14px;
  }
  .about-detail-value {
    font-size: 12px;
  }
  .about-map-frame {
    height: 50vh;
  }
  
  /* Contact Mobile layout */
  .contact-content-wrapper {
    padding: 30px 20px 30px 15px;
  }
}

/* ==========================================================================
   WordPress Default Gallery Blocks
   ========================================================================== */
.wp-block-gallery,
.blocks-gallery-grid {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 30px !important;
  list-style-type: none;
  padding: 0;
  margin: 0 0 1.5em 0;
}

.gallery {
  gap: 30px;
}

.wp-block-gallery .wp-block-image {
  margin: 0;
  height: auto;
}

/* Gutenberg Gallery column widths with 30px gap */
.wp-block-gallery.columns-1 .wp-block-image { width: 100% !important; }
.wp-block-gallery.columns-2 .wp-block-image { width: calc(50% - 15px) !important; }
.wp-block-gallery.columns-3 .wp-block-image { width: calc(33.333% - 20px) !important; }
.wp-block-gallery.columns-4 .wp-block-image { width: calc(25% - 22.5px) !important; }
.wp-block-gallery.columns-5 .wp-block-image { width: calc(20% - 24px) !important; }
.wp-block-gallery.columns-6 .wp-block-image { width: calc(16.666% - 25px) !important; }
.wp-block-gallery.columns-7 .wp-block-image { width: calc(14.285% - 25.7px) !important; }
.wp-block-gallery.columns-8 .wp-block-image { width: calc(12.5% - 26.2px) !important; }

/* Mobile fallback for block galleries */
@media (max-width: 540px) {
  .wp-block-gallery .wp-block-image {
    width: 100% !important;
  }
}