/* ==========================================================================
   GS Lodge - sample layout stylesheet
   ========================================================================== */

:root {
  --color-bg: #faf7f2;
  --color-white: #ffffff;
  --color-ink: #24282c;
  --color-ink-soft: #5b6167;
  --color-primary: #2f5233;      /* 深緑：山・自然 */
  --color-primary-dark: #203b24;
  --color-accent: #c8863a;       /* 木・薪ストーブの温かみ */
  --color-snow: #eef2f5;
  --color-border: #e3ddd2;

  --font-serif: "Shippori Mincho", serif;
  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;

  --container-w: 1120px;
  --header-h: 76px;

  --radius: 6px;
  --shadow-md: 0 10px 30px rgba(36, 40, 44, 0.10);
  --transition: 0.25s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.8;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

h1, h2, h3 { font-family: var(--font-serif); font-weight: 700; line-height: 1.4; }

.section-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }

.section-eyebrow {
  font-family: var(--font-sans);
  letter-spacing: 0.14em;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(26px, 4vw, 36px);
  margin-bottom: 20px;
  color: var(--color-primary-dark);
}

.section-lead {
  color: var(--color-ink-soft);
  max-width: 640px;
  margin-bottom: 40px;
}

.center { text-align: center; margin-left: auto; margin-right: auto; }

.img-placeholder {
  background: linear-gradient(135deg, #dfe6de 0%, #c9d3c8 100%);
  color: #56635a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 0.08em;
  border-radius: var(--radius);
  min-height: 260px;
}
.img-placeholder.small { min-height: 180px; margin-bottom: 16px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.7);
}
.btn-outline:hover { background: rgba(255,255,255,0.15); }

.btn-block { width: 100%; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 500;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}

.header-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-white);
  transition: color var(--transition);
}
.logo span { color: var(--color-accent); }
.site-header.scrolled .logo { color: var(--color-primary-dark); }

.logo-image {
  display: inline-flex;
  align-items: center;
  background: rgba(255,255,255,0.92);
  padding: 6px 12px;
  border-radius: 6px;
  transition: background var(--transition);
}
.logo-image img { height: 32px; width: auto; display: block; }
.site-header.scrolled .logo-image { background: transparent; padding: 0; }

.main-nav ul {
  display: flex;
  gap: 32px;
}
.main-nav a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--color-white);
  position: relative;
  padding-bottom: 4px;
  transition: color var(--transition);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: currentColor;
  transition: width var(--transition);
}
.main-nav a:hover::after { width: 100%; }
.site-header.scrolled .main-nav a { color: var(--color-ink); }

.header-cta { flex-shrink: 0; padding: 10px 24px; font-size: 14px; }

/* ---- Language switch ---- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.5);
  flex-shrink: 0;
  transition: border-color var(--transition);
}
.site-header.scrolled .lang-switch { border-color: var(--color-border); }

.lang-btn {
  border: none;
  background: transparent;
  color: rgba(255,255,255,0.85);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 5px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.site-header.scrolled .lang-btn { color: var(--color-ink-soft); }

.lang-btn.active {
  background: var(--color-white);
  color: var(--color-primary-dark);
}
.site-header.scrolled .lang-btn.active {
  background: var(--color-primary);
  color: var(--color-white);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-white);
  transition: background var(--transition);
}
.site-header.scrolled .nav-toggle span { background: var(--color-ink); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-image {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(20,28,22,0.35) 0%, rgba(15,20,17,0.65) 100%),
    url("../images/legacy/gs_summer.jpg") center / cover no-repeat,
    linear-gradient(135deg, #3c5a45 0%, #22303a 45%, #7c8a91 100%);
  background-size: cover;
}
.hero-3d {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(255,255,255,0.08), transparent 60%);
  pointer-events: none;
}
.hero-3d-note {
  margin-top: 18px;
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  max-width: 460px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  color: var(--color-white);
}

.hero-eyebrow {
  font-size: 13px;
  letter-spacing: 0.18em;
  font-weight: 500;
  color: #d8c7a1;
  margin-bottom: 18px;
}

.hero-content h1 {
  font-size: clamp(32px, 5.4vw, 58px);
  margin-bottom: 24px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.25);
}

.hero-desc {
  max-width: 520px;
  font-size: 16px;
  color: rgba(255,255,255,0.88);
  margin-bottom: 36px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.scroll-cue {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid rgba(255,255,255,0.7);
  border-radius: 20px;
  z-index: 1;
}
.scroll-cue span {
  position: absolute;
  top: 8px; left: 50%;
  width: 4px; height: 4px;
  margin-left: -2px;
  background: #fff;
  border-radius: 50%;
  animation: scrollCue 1.6s infinite;
}
@keyframes scrollCue {
  0%   { opacity: 1; transform: translateY(0); }
  70%  { opacity: 0; transform: translateY(14px); }
  100% { opacity: 0; transform: translateY(14px); }
}

/* ==========================================================================
   Info bar
   ========================================================================== */
.infobar {
  background: var(--color-primary);
  color: var(--color-white);
}
.infobar-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 28px 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.infobar-item { display: flex; flex-direction: column; gap: 6px; }
.infobar-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: #b9d1bb;
  font-weight: 700;
}
.infobar-value { font-size: 15px; font-weight: 500; }

/* ==========================================================================
   About
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-image {
  width: 100%;
  min-height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.feature-list { margin-top: 32px; display: flex; flex-direction: column; gap: 24px; }
.feature-list li { display: flex; gap: 18px; align-items: flex-start; }
.feature-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-snow);
  display: flex; align-items: center; justify-content: center;
  font-size: 19px;
}
.feature-list h3 { font-size: 17px; margin-bottom: 4px; color: var(--color-ink); }
.feature-list p { font-size: 14.5px; color: var(--color-ink-soft); }

/* ==========================================================================
   New facilities (テニスコート / キャンプエリア)
   ========================================================================== */
.newarea { background: var(--color-white); }

.badge-new {
  display: inline-block;
  font-size: 11px;
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
  background: var(--color-accent);
  padding: 2px 9px;
  border-radius: 999px;
  vertical-align: middle;
  margin-left: 8px;
}

.newarea-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.newarea-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.newarea-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.newarea-card .img-placeholder { min-height: 220px; border-radius: 0; }
.newarea-body { padding: 24px 26px 28px; }
.newarea-body h3 { font-size: 18px; margin-bottom: 8px; }
.newarea-meta {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.newarea-body p:last-child { font-size: 14.5px; color: var(--color-ink-soft); }

/* ==========================================================================
   Rooms
   ========================================================================== */
.rooms { background: var(--color-white); }

.room-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 28px;
  margin-bottom: 56px;
}
.room-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.room-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.room-image { min-height: 200px; border-radius: 0; }
.room-body { padding: 22px 24px 28px; }
.room-body h3 { font-size: 18px; margin-bottom: 6px; }
.room-cap {
  display: inline-block;
  font-size: 12.5px;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 10px;
}
.room-body p:last-child { font-size: 14.5px; color: var(--color-ink-soft); }

/* ---- Price table ---- */
.price-block {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px;
  margin-bottom: 40px;
}
.price-block-title {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--color-primary-dark);
  margin-bottom: 6px;
}
.price-updated {
  font-size: 12.5px;
  color: var(--color-ink-soft);
  margin-bottom: 20px;
}
.price-table-wrap { overflow-x: auto; margin-bottom: 18px; }
.price-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
  font-size: 14px;
}
.price-table th,
.price-table td {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  text-align: left;
}
.price-table th {
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 500;
  font-size: 13px;
}
.price-table td:first-child {
  font-weight: 700;
  color: var(--color-primary-dark);
  white-space: nowrap;
}
.price-table tbody tr:nth-child(even) { background: var(--color-white); }
.price-note {
  font-size: 13px;
  color: var(--color-ink-soft);
  margin-top: 6px;
}

/* ---- Reserve block ---- */
.reserve-block {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px;
}
.reserve-checklist {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px 24px;
  margin: 20px 0 28px;
}
.reserve-checklist li {
  font-size: 14px;
  color: var(--color-ink);
  padding-left: 18px;
  position: relative;
}
.reserve-checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}
.reserve-contacts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.reserve-contact-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.reserve-contact-label {
  font-size: 12.5px;
  color: var(--color-ink-soft);
  font-weight: 500;
}
.reserve-contact-value {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary-dark);
}
a.reserve-contact-value:hover { color: var(--color-accent); }

/* ==========================================================================
   Activity tabs
   ========================================================================== */
.activity-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 10px 26px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-ink-soft);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.tab-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.35s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.activity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}
.activity-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}
.activity-card h3 { font-size: 17px; margin-bottom: 6px; }
.activity-card p { font-size: 14.5px; color: var(--color-ink-soft); }
.activity-image.small {
  width: 100%;
  min-height: 180px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 16px;
}

/* ==========================================================================
   Access
   ========================================================================== */
.access { background: var(--color-white); }
.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.access-list { display: flex; flex-direction: column; gap: 18px; margin-top: 8px; }
.access-row { display: grid; grid-template-columns: 180px 1fr; gap: 12px; padding-bottom: 18px; border-bottom: 1px solid var(--color-border); }
.access-row dt { font-weight: 700; color: var(--color-primary-dark); font-size: 14.5px; }
.access-row dd { font-size: 14.5px; color: var(--color-ink-soft); }
.access-map { min-height: 360px; position: sticky; top: 100px; border-radius: var(--radius); overflow: hidden;}

/* ==========================================================================
   Blog
   ========================================================================== */
.blog { background: var(--color-bg); }
.blog-inner {
  text-align: center;
  max-width: 560px;
}
.blog-inner .section-lead { margin-left: auto; margin-right: auto; }

/* ==========================================================================
   Contact form
   ========================================================================== */
.contact-form {
  max-width: 560px;
  margin: 0 auto;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
}
.form-row { margin-bottom: 20px; }
.form-row label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--color-ink);
}
.required {
  font-size: 11px;
  color: #fff;
  background: var(--color-accent);
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 4px;
  vertical-align: middle;
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 14.5px;
  background: var(--color-bg);
  transition: border-color var(--transition);
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-white);
}
.form-row-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-note {
  margin-top: 14px;
  font-size: 14px;
  text-align: center;
  color: var(--color-primary);
  min-height: 20px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
  padding: 56px 0 24px;
}
.footer-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  margin-bottom: 20px;
}
.footer-logo {
  height: 40px;
  width: auto;
  margin-bottom: 8px;
  background: rgba(255,255,255,0.92);
  padding: 6px 10px;
  border-radius: 6px;
}
.footer-brand p:last-child { font-size: 13.5px; color: rgba(255,255,255,0.6); }
.footer-nav { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-nav a { font-size: 14px; transition: color var(--transition); }
.footer-nav a:hover { color: var(--color-accent); }
.footer-address {
  text-align: center;
  font-size: 13.5px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  margin-bottom: 10px;
  padding: 0 24px;
}
.footer-copy {
  text-align: center;
  font-size: 12.5px;
  color: rgba(255,255,255,0.45);
}

/* ==========================================================================
   Back to top
   ========================================================================== */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  background: var(--color-primary);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
  z-index: 400;
}
.to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.to-top:hover { background: var(--color-primary-dark); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 960px) {
  .about-grid, .access-grid { grid-template-columns: 1fr; gap: 40px; }
  .access-map { position: static; }
  .room-grid { grid-template-columns: repeat(2, 1fr); }
  .infobar-inner { grid-template-columns: 1fr; text-align: center; }
}

@media (max-width: 760px) {
  .main-nav { display: none; }
  .header-cta { display: none; }
  .nav-toggle { display: flex; }
  .header-inner { gap: 12px; }
  .lang-btn { padding: 5px 9px; font-size: 12px; }

  .main-nav.open {
    display: block;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--color-white);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
  }
  .main-nav.open ul { flex-direction: column; padding: 16px 24px; gap: 4px; }
  .main-nav.open a { color: var(--color-ink); display: block; padding: 12px 0; }

  .room-grid, .activity-grid, .newarea-grid { grid-template-columns: 1fr; }
  .access-row { grid-template-columns: 1fr; gap: 4px; }
  .price-block, .reserve-block { padding: 24px; }
  .form-row-split { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .contact-form { padding: 28px; }
}