/*
Theme Name: Hotel Sun
Theme URI: https://hotelsun-takasaki.com
Author: Hotel Sun
Description: ホテルサン（高崎）カスタムWordPressテーマ
Version: 1.0.0
License: Private
Text Domain: hotelsun
*/

/* =============================================
   Hotel Sun - Main Stylesheet
   ============================================= */

/* --- CSS Variables --- */
:root {
  --color-primary:   #1a3a5c;
  --color-accent:    #c8a84b;
  --color-accent-lt: #e8d08a;
  --color-text:      #2c2c2c;
  --color-text-sub:  #666;
  --color-bg:        #fafaf8;
  --color-bg-dark:   #111820;
  --color-white:     #ffffff;
  --color-border:    #e0ddd6;
  --color-section-bg:#f4f2ee;

  --font-sans:  'Noto Sans JP', 'Lato', sans-serif;
  --font-serif: 'Noto Serif JP', serif;

  --max-width: 1200px;
  --header-height: 72px;
  --radius: 6px;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.14);
  --transition: 0.28s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--header-height);
}
img { max-width: 100%; height: auto; display: block; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* =============================================
   HEADER / NAV
   ============================================= */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow var(--transition);
}
#site-header.scrolled { box-shadow: 0 2px 16px rgba(0,0,0,0.10); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.logo a { display: flex; flex-direction: column; line-height: 1.2; }
.logo-main {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}
.logo-sub {
  font-size: 0.65rem;
  color: var(--color-text-sub);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.nav-desktop { display: flex; align-items: center; gap: 0; }
.nav-desktop li { position: relative; }
.nav-desktop > li > a {
  display: block;
  padding: 0 14px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: color var(--transition);
}
.nav-desktop > li > a:hover,
.nav-desktop > li > a.active { color: var(--color-primary); }
.nav-desktop > li > a.active::after {
  content: '';
  display: block;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  margin-top: 2px;
}
.nav-reserve-btn {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white) !important;
  padding: 8px 20px !important;
  border-radius: var(--radius);
  font-weight: 700 !important;
  font-size: 0.82rem !important;
  letter-spacing: 0.06em;
  transition: background var(--transition), transform var(--transition);
  margin-left: 8px;
}
.nav-reserve-btn:hover {
  background: #b8943b;
  transform: translateY(-1px);
  color: var(--color-white) !important;
}
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0; right: 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 16px 0 24px;
  z-index: 999;
  max-height: calc(100vh - var(--header-height));
  overflow-y: auto;
  box-shadow: 0 8px 24px rgba(0,0,0,0.10);
}
.nav-mobile.open { display: block; }
.nav-mobile li a {
  display: block;
  padding: 12px 28px;
  font-size: 0.92rem;
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}
.nav-mobile li:last-child a { border-bottom: none; }
.nav-mobile li a:hover { background: var(--color-section-bg); }
.nav-mobile .nav-reserve-btn {
  margin: 16px 28px 0;
  display: block;
  text-align: center;
  padding: 12px !important;
  font-size: 0.92rem !important;
}

/* =============================================
   STICKY RESERVE BANNER
   ============================================= */
#sticky-reserve {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 900;
  background: var(--color-primary);
  transform: translateY(100%);
  transition: transform 0.4s ease;
  display: none;
}
#sticky-reserve.visible { transform: translateY(0); display: block; }
.sticky-reserve-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
}
.sticky-reserve-text { color: var(--color-white); font-size: 0.88rem; line-height: 1.4; }
.sticky-reserve-text strong { display: block; font-size: 1rem; }
.sticky-reserve-btns { display: flex; gap: 10px; flex-shrink: 0; }
.sticky-reserve-btn {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 10px 22px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.88rem;
  white-space: nowrap;
  transition: background var(--transition);
}
.sticky-reserve-btn:hover { background: #b8943b; }
.sticky-reserve-close {
  color: rgba(255,255,255,0.6);
  font-size: 1.3rem;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  line-height: 1;
  transition: color var(--transition);
  flex-shrink: 0;
}
.sticky-reserve-close:hover { color: #fff; }

/* =============================================
   PAGE HERO
   ============================================= */
.page-hero {
  background: var(--color-primary);
  padding: 60px 24px;
  text-align: center;
}
.page-hero-en {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
  font-family: var(--font-sans);
  font-weight: 500;
}
.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  color: var(--color-white);
  font-weight: 600;
  line-height: 1.4;
}
.page-hero p { color: rgba(255,255,255,0.75); margin-top: 12px; font-size: 0.92rem; }

/* =============================================
   SECTION COMMON
   ============================================= */
.section { padding: 80px 0; }
.section-alt { background: var(--color-section-bg); }
.section-dark { background: var(--color-primary); color: var(--color-white); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-en {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
  font-weight: 500;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3.5vw, 2.1rem);
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.4;
}
.section-dark .section-title { color: var(--color-white); }
.section-dark .section-en { color: var(--color-accent); }
.section-lead {
  margin-top: 16px;
  color: var(--color-text-sub);
  font-size: 0.95rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.section-dark .section-lead { color: rgba(255,255,255,0.7); }

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.05em;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
}
.btn-primary { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.btn-primary:hover { background: #122b47; border-color: #122b47; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26,58,92,0.22); }
.btn-accent { background: var(--color-accent); color: var(--color-white); border-color: var(--color-accent); }
.btn-accent:hover { background: #b8943b; border-color: #b8943b; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(200,168,75,0.3); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); transform: translateY(-2px); }
.btn-outline-white { background: transparent; color: var(--color-white); border-color: rgba(255,255,255,0.6); }
.btn-outline-white:hover { background: rgba(255,255,255,0.12); border-color: var(--color-white); }
.btn-lg { padding: 16px 40px; font-size: 1rem; }
.btn-sm { padding: 8px 20px; font-size: 0.82rem; }

/* =============================================
   CARDS
   ============================================= */
.card { background: var(--color-white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: box-shadow var(--transition), transform var(--transition); }
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card-img { width: 100%; height: 220px; object-fit: cover; }
.card-body { padding: 24px; }
.card-label { font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--color-accent); font-weight: 700; margin-bottom: 8px; }
.card-title { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 600; color: var(--color-primary); margin-bottom: 10px; line-height: 1.4; }
.card-text { font-size: 0.88rem; color: var(--color-text-sub); line-height: 1.8; }

/* =============================================
   FEATURE LIST
   ============================================= */
.feature-list { display: flex; flex-direction: column; gap: 40px; }
.feature-item { display: grid; grid-template-columns: 60px 1fr; gap: 24px; align-items: start; }
.feature-num { font-family: 'Lato', sans-serif; font-size: 2.2rem; font-weight: 700; color: var(--color-accent); line-height: 1; flex-shrink: 0; }
.feature-title { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 600; color: var(--color-primary); margin-bottom: 8px; }
.feature-text { font-size: 0.9rem; color: var(--color-text-sub); line-height: 1.85; }
.feature-en { font-size: 0.8rem; color: var(--color-accent); font-style: italic; margin-top: 6px; line-height: 1.6; }

/* =============================================
   INFO BOX
   ============================================= */
.info-box {
  background: #f0ede6;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 20px 24px;
  font-size: 0.88rem;
  color: var(--color-text-sub);
  line-height: 1.85;
}
.info-box p + p { margin-top: 8px; }
.notice-box { background: #fffbf0; border: 1px solid var(--color-accent-lt); border-radius: var(--radius); padding: 20px 24px; font-size: 0.88rem; line-height: 1.85; }

/* =============================================
   TAG / BADGE
   ============================================= */
.tag { display: inline-block; background: var(--color-section-bg); color: var(--color-primary); border: 1px solid var(--color-border); border-radius: 100px; padding: 4px 14px; font-size: 0.78rem; font-weight: 500; letter-spacing: 0.04em; }
.tag-accent { background: var(--color-accent); color: var(--color-white); border-color: var(--color-accent); }

/* =============================================
   SCENE LIST
   ============================================= */
.scene-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.scene-item { display: flex; align-items: center; gap: 8px; background: var(--color-white); border: 1px solid var(--color-border); border-radius: 100px; padding: 8px 18px; font-size: 0.88rem; font-weight: 500; }
.scene-item i { color: var(--color-accent); font-size: 0.9rem; }

/* =============================================
   GRID LAYOUTS
   ============================================= */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* =============================================
   CTA SECTION
   ============================================= */
.cta-section { background: var(--color-primary); padding: 72px 0; text-align: center; }
.cta-section h2 { font-family: var(--font-serif); font-size: clamp(1.3rem, 3vw, 1.9rem); color: var(--color-white); font-weight: 600; margin-bottom: 12px; }
.cta-section p { color: rgba(255,255,255,0.75); margin-bottom: 32px; font-size: 0.95rem; }
.cta-btns { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; }

/* =============================================
   FOOTER
   ============================================= */
#site-footer { background: #0d1820; color: rgba(255,255,255,0.75); padding: 60px 0 32px; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.10); }
.footer-logo-main { font-family: var(--font-serif); font-size: 1.4rem; font-weight: 600; color: var(--color-white); margin-bottom: 4px; }
.footer-logo-sub { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 16px; }
.footer-desc { font-size: 0.83rem; line-height: 1.85; color: rgba(255,255,255,0.6); }
.footer-social { display: flex; gap: 10px; margin-top: 14px; }
.footer-social-link { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.8); font-size: 1.1rem; transition: background var(--transition), color var(--transition); text-decoration: none; }
.footer-social-link:hover { background: linear-gradient(135deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888); color: #fff; }
.footer-col h4 { color: var(--color-white); font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 14px; font-weight: 700; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.83rem; color: rgba(255,255,255,0.6); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 24px; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 0.78rem; color: rgba(255,255,255,0.4); }
.footer-reserve-btn { display: inline-block; background: var(--color-accent); color: var(--color-white); padding: 10px 24px; border-radius: var(--radius); font-size: 0.85rem; font-weight: 700; transition: background var(--transition); }
.footer-reserve-btn:hover { background: #b8943b; color: var(--color-white); }

/* =============================================
   BREADCRUMB
   ============================================= */
.breadcrumb { background: var(--color-section-bg); padding: 10px 0; border-bottom: 1px solid var(--color-border); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 4px; font-size: 0.78rem; color: var(--color-text-sub); }
.breadcrumb ol li { display: flex; align-items: center; gap: 4px; }
.breadcrumb ol li::after { content: '/'; color: var(--color-border); }
.breadcrumb ol li:last-child::after { content: ''; }
.breadcrumb ol li a { color: var(--color-text-sub); transition: color var(--transition); }
.breadcrumb ol li a:hover { color: var(--color-accent); }
.breadcrumb ol li:last-child { color: var(--color-text); font-weight: 500; }

/* =============================================
   DIVIDER
   ============================================= */
.divider { width: 40px; height: 3px; background: var(--color-accent); border-radius: 2px; margin: 0 auto 24px; }
.divider-left { margin-left: 0; }

/* =============================================
   TABLE
   ============================================= */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.data-table th, .data-table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--color-border); }
.data-table th { background: var(--color-section-bg); font-weight: 600; color: var(--color-primary); font-size: 0.82rem; letter-spacing: 0.04em; width: 200px; }

/* =============================================
   FAQ ACCORDION
   ============================================= */
.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq-item { background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
.faq-question { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; cursor: pointer; font-weight: 600; font-size: 0.95rem; color: var(--color-primary); transition: background var(--transition); gap: 16px; }
.faq-question:hover { background: var(--color-section-bg); }
.faq-q-mark { flex-shrink: 0; width: 28px; height: 28px; background: var(--color-primary); color: var(--color-white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.82rem; font-weight: 700; margin-right: 14px; }
.faq-q-text { flex: 1; }
.faq-icon { flex-shrink: 0; width: 24px; height: 24px; position: relative; transition: transform var(--transition); }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; background: var(--color-primary); border-radius: 2px; transition: all var(--transition); }
.faq-icon::before { width: 14px; height: 2px; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.faq-icon::after  { width: 2px; height: 14px; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.faq-item.open .faq-icon::after { opacity: 0; transform: translate(-50%,-50%) rotate(90deg); }
.faq-answer { display: none; padding: 0 24px 20px 66px; font-size: 0.9rem; color: var(--color-text-sub); line-height: 1.9; }
.faq-item.open .faq-answer { display: block; }

/* =============================================
   MAP EMBED
   ============================================= */
.map-wrap { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.map-wrap iframe { display: block; }

/* =============================================
   LANGUAGE SWITCHER
   ============================================= */
.lang-switcher { display: flex; gap: 6px; flex-shrink: 0; }
.lang-btn { padding: 4px 10px; border-radius: 4px; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em; border: 1px solid var(--color-border); cursor: pointer; background: transparent; transition: all var(--transition); color: var(--color-text-sub); }
.lang-btn:hover, .lang-btn.active { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-white); }

/* =============================================
   UTILITIES
   ============================================= */
.text-center  { text-align: center; }
.text-right   { text-align: right; }
.text-accent  { color: var(--color-accent); }
.text-primary { color: var(--color-primary); }
.text-muted   { color: var(--color-text-sub); }
.text-white   { color: var(--color-white); }
.font-serif   { font-family: var(--font-serif); }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.d-flex { display: flex; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --header-height: 60px; }
  body { padding-top: var(--header-height); }
  .nav-desktop { display: none; }
  .hamburger { display: flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .section-header { margin-bottom: 36px; }
  .feature-item { grid-template-columns: 48px 1fr; gap: 16px; }
  .feature-num { font-size: 1.8rem; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .sticky-reserve-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
  .sticky-reserve-btns { width: 100%; }
  .sticky-reserve-btn { flex: 1; text-align: center; }
  .faq-answer { padding: 0 20px 16px 20px; }
  .faq-q-mark { display: none; }
  .data-table th { width: 120px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .btn { padding: 12px 24px; font-size: 0.88rem; }
  .page-hero { padding: 44px 16px; }
}