/* ============================================================
   Variables & Reset
   ============================================================ */
:root {
  --primary:      #e8842a;
  --primary-dark: #c86820;
  --accent:       #f5c842;
  --bg-main:      #ffffff;
  --bg-warm:      #fff8f0;
  --bg-section:   #fff3e6;
  --text-dark:    #2d1a00;
  --text-mid:     rgba(45, 26, 0, 0.72);
  --text-muted:   #8a6a50;
  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans:  'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-variant-numeric: lining-nums; }

body {
  background: var(--bg-main);
  color: var(--text-dark);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a   { color: inherit; text-decoration: none; }

/* ============================================================
   Utility
   ============================================================ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}

.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

.section-header { text-align: center; margin-bottom: 72px; }

.section-label {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--text-dark);
  line-height: 1.2;
  margin-bottom: 20px;
}

.gold-line {
  width: 48px;
  height: 1px;
  background: var(--primary);
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 36px;
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.82rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-gold {
  background: var(--primary);
  color: #fff8f0;
}
.btn-gold:hover { background: var(--primary-dark); }

.btn-ghost {
  background: transparent;
  color: var(--text-dark);
  border: 1px solid rgba(232, 132, 42, 0.5);
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(232, 132, 42, 0.06);
}

/* ghost on hero (dark bg version) */
.hero .btn-ghost {
  color: #fff8f0;
  border-color: rgba(255, 248, 240, 0.6);
}
.hero .btn-ghost:hover {
  border-color: #fff8f0;
  color: #fff8f0;
  background: rgba(255, 248, 240, 0.12);
}

/* ============================================================
   Notice Bar
   ============================================================ */
.notice-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  background: rgba(232, 132, 42, 0.1);
  border-bottom: 1px solid rgba(232, 132, 42, 0.25);
  font-size: 0.84rem;
  color: var(--text-dark);
  line-height: 1.6;
  text-align: center;
}
.notice-icon { flex-shrink: 0; color: var(--primary); }

/* ============================================================
   Navbar  (white, orange logo)
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.0);
  transition: background 0.5s ease, box-shadow 0.5s ease, backdrop-filter 0.5s ease;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(232, 132, 42, 0.15);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo { display: flex; flex-direction: column; gap: 1px; line-height: 1; }

.logo-en {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.45rem;
  letter-spacing: 0.12em;
  color: var(--primary);
  text-shadow: 0 1px 4px rgba(255,255,255,0.6);
}

.logo-ja {
  font-family: var(--sans);
  font-weight: 300;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: rgba(45, 26, 0, 0.55);
}

/* On hero (not scrolled) logo-ja goes lighter */
.navbar:not(.scrolled) .logo-ja {
  color: rgba(255, 248, 240, 0.7);
}

.nav-links { display: flex; align-items: center; gap: 36px; list-style: none; }

.nav-links a {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dark);
  transition: color var(--transition);
  text-shadow: 0 1px 4px rgba(255,255,255,0.5);
}

/* On non-scrolled hero, links go white for readability over gradient */
.navbar:not(.scrolled) .nav-links a {
  color: rgba(45, 26, 0, 0.85);
}

.nav-links a:hover { color: var(--primary); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-dark);
  transition: var(--transition);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ============================================================
   Hero  (bright sunset gradient)
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: -10%;
  background-image: url('images/group.jpg');
  background-size: cover;
  background-position: center;
  animation: heroZoom 22s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  from { transform: scale(1); }
  to   { transform: scale(1.1); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(255, 154, 60, 0.82) 0%,
    rgba(255, 179, 71, 0.72) 50%,
    rgba(245, 200, 66, 0.65) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 760px;
}

.hero-sub {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--text-dark);
  margin-bottom: 16px;
  opacity: 0;
  animation: heroFadeUp 1s 0.3s forwards;
}

.hero-title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.3rem, 2.4vw, 2.2rem);
  line-height: 1.5;
  color: var(--text-dark);
  letter-spacing: 0.03em;
  opacity: 0;
  animation: heroFadeUp 1s 0.55s forwards;
}

.hero-divider {
  width: 48px;
  height: 2px;
  background: var(--text-dark);
  margin: 32px auto;
  opacity: 0;
  animation: heroFadeUp 1s 0.8s forwards;
}

.hero-desc {
  font-family: var(--sans);
  font-weight: 300;
  font-size: 0.82rem;
  line-height: 2.1;
  color: rgba(45, 26, 0, 0.82);
  margin-bottom: 48px;
  opacity: 0;
  animation: heroFadeUp 1s 1s forwards;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: heroFadeUp 1s 1.2s forwards;
}

/* hero button overrides: dark bg-ish buttons on bright gradient */
.hero .btn-gold {
  background: var(--text-dark);
  color: #fff8f0;
}
.hero .btn-gold:hover { background: #4a2c00; }

@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(45, 26, 0, 0.55);
  font-family: var(--sans);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(45, 26, 0, 0.6), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.1); }
}

/* ============================================================
   About  (white)
   ============================================================ */
.about {
  padding: 128px 0;
  background: var(--bg-main);
}

.about-goal {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  max-width: 780px;
  margin: 0 auto 72px;
  padding: 40px 48px;
  border: 1px solid rgba(232, 132, 42, 0.25);
  background: rgba(232, 132, 42, 0.04);
}

.about-goal-icon { flex-shrink: 0; width: 40px; height: 40px; margin-top: 2px; }
.about-goal-icon svg { width: 100%; height: 100%; }

.about-goal-text { font-size: 0.94rem; line-height: 2; color: var(--text-mid); }
.about-goal-text strong { color: var(--primary); font-weight: 500; }

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid rgba(232, 132, 42, 0.2);
}

.stat-card {
  padding: 48px 28px;
  text-align: center;
  border-right: 1px solid rgba(232, 132, 42, 0.2);
  transition: background var(--transition);
}
.stat-card:last-child { border-right: none; }
.stat-card:hover { background: rgba(232, 132, 42, 0.04); }

.stat-icon { width: 36px; height: 36px; margin: 0 auto 20px; }
.stat-icon svg { width: 100%; height: 100%; }

.stat-value {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 2.6rem;
  color: var(--text-dark);
  line-height: 1;
  margin-bottom: 8px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 4px;
}
.stat-value span { font-size: 1rem; color: var(--text-muted); padding-bottom: 0.25rem; }
.stat-value--small { font-size: 0.92rem; line-height: 1.5; color: var(--text-mid); }

.stat-label {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--primary);
}

/* ============================================================
   Activities  (warm cream)
   ============================================================ */
.activities {
  padding: 128px 0;
  background: var(--bg-warm);
}

.activity-list { display: flex; flex-direction: column; }

.activity-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 40px;
  padding: 52px 0;
  border-bottom: 1px solid rgba(232, 132, 42, 0.12);
  align-items: start;
}
.activity-item:first-child { border-top: 1px solid rgba(232, 132, 42, 0.12); }

.activity-num {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 3.2rem;
  color: rgba(232, 132, 42, 0.3);
  line-height: 1;
  padding-top: 4px;
}

.activity-body h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.4rem;
  color: var(--text-dark);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.activity-body p { font-size: 0.9rem; line-height: 2; color: var(--text-mid); }

/* ============================================================
   Our Balloon  (pale orange)
   ============================================================ */
.our-balloon {
  padding: 128px 0;
  background: var(--bg-section);
}

.balloon-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  margin-bottom: 96px;
}
.balloon-showcase:last-child { margin-bottom: 0; }
.balloon-showcase--reverse { direction: rtl; }
.balloon-showcase--reverse > * { direction: ltr; }

.balloon-photo { position: relative; }

.balloon-photo::before {
  content: '';
  position: absolute;
  inset: -12px -12px 12px 12px;
  border: 1px solid rgba(232, 132, 42, 0.35);
  pointer-events: none;
  z-index: 0;
}

.balloon-photo img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.balloon-photo-placeholder {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 420px;
  background: rgba(232, 132, 42, 0.06);
  border: 1px solid rgba(232, 132, 42, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
}
.balloon-photo-placeholder svg { width: 80px; height: 80px; opacity: 0.45; }
.balloon-photo-placeholder span {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 1.6rem;
  letter-spacing: 0.3em;
  color: rgba(232, 132, 42, 0.55);
}

.balloon-name {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 1.9rem;
  color: var(--text-dark);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.balloon-desc { font-size: 0.9rem; line-height: 2; color: var(--text-mid); margin-bottom: 36px; }

.balloon-specs { border-top: 1px solid rgba(232, 132, 42, 0.18); }

.spec-row {
  display: flex;
  gap: 24px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(232, 132, 42, 0.1);
  font-size: 0.85rem;
}
.spec-row dt {
  width: 108px;
  flex-shrink: 0;
  color: var(--primary);
  font-weight: 400;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}
.spec-row dd { color: var(--text-mid); }

/* ============================================================
   Gallery
   ============================================================ */
.gallery {
  padding: 128px 0;
  background: var(--bg-warm);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}

.gallery-cell { position: relative; overflow: hidden; }

.gallery-cell img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.gallery-cell:hover img { transform: scale(1.05); }

.gallery-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 10px 14px;
  background: linear-gradient(to top, rgba(45,26,0,0.6), transparent);
  font-size: 0.76rem;
  color: #fff8f0;
  letter-spacing: 0.04em;
}

#gallery-more-btn:hover {
  background: var(--primary);
  color: #fff;
}

/* ============================================================
   Sponsor  (white)
   ============================================================ */
.sponsor { background: var(--bg-main); }

/* hero */
.sp-hero {
  padding: 128px 0 100px;
  text-align: center;
  border-bottom: 1px solid rgba(232, 132, 42, 0.15);
}

.sp-hero-label {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 20px;
}

.sp-hero-title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.8rem, 6vw, 5rem);
  color: var(--text-dark);
  letter-spacing: 0.04em;
  line-height: 1.15;
}

.sp-hero-sub {
  font-size: 0.94rem;
  line-height: 2;
  color: var(--text-mid);
  margin-bottom: 44px;
}

.sp-hero-btn { display: inline-block; }

/* stats */
.sp-stats { border-bottom: 1px solid rgba(232, 132, 42, 0.15); background: var(--bg-warm); }

.sp-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }

.sp-stat {
  padding: 52px 24px;
  text-align: center;
  border-right: 1px solid rgba(232, 132, 42, 0.15);
}
.sp-stat:last-child { border-right: none; }

.sp-stat-num {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 3.2rem;
  color: var(--text-dark);
  line-height: 1;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 4px;
}
.sp-stat-num span { font-size: 1.1rem; font-weight: 500; color: var(--primary); padding-bottom: 0.35rem; }
.sp-stat-num--sm { font-size: 1.6rem; line-height: 1.2; color: var(--text-dark); }

.sp-stat-label { font-size: 0.7rem; letter-spacing: 0.15em; color: var(--text-muted); font-weight: 500; }

/* benefits */
.sp-benefits {
  padding: 100px 0;
  background: var(--bg-main);
  border-bottom: 1px solid rgba(232, 132, 42, 0.1);
}

.sp-benefit-list { display: flex; flex-direction: column; }

.sp-benefit-item {
  display: grid;
  grid-template-columns: 56px 52px 1fr;
  gap: 0 36px;
  padding: 48px 0;
  border-bottom: 1px solid rgba(232, 132, 42, 0.1);
  align-items: start;
}
.sp-benefit-item:first-child { border-top: 1px solid rgba(232, 132, 42, 0.1); }

.sp-benefit-num {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 2.4rem;
  color: rgba(232, 132, 42, 0.3);
  line-height: 1;
  padding-top: 6px;
}

.sp-benefit-icon { width: 36px; height: 36px; margin-top: 4px; }
.sp-benefit-icon svg { width: 100%; height: 100%; }

.sp-benefit-body h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.35rem;
  color: var(--text-dark);
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.sp-benefit-body p { font-size: 0.9rem; line-height: 2; color: var(--text-mid); }

/* why */
.sp-why {
  padding: 100px 0;
  background: var(--bg-section);
  border-bottom: 1px solid rgba(232, 132, 42, 0.1);
}

.sp-why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: rgba(232, 132, 42, 0.12);
}

.sp-why-item {
  background: var(--bg-section);
  padding: 48px 40px;
  transition: background var(--transition);
}
.sp-why-item:hover { background: rgba(232, 132, 42, 0.07); }

.sp-why-num {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 18px;
}

.sp-why-body h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.05rem;
  color: var(--text-dark);
  margin-bottom: 14px;
  letter-spacing: 0.03em;
  line-height: 1.4;
}
.sp-why-body p { font-size: 0.86rem; line-height: 1.9; color: var(--text-mid); }

/* CTA */
.sp-cta {
  padding: 80px 0;
  text-align: center;
  background: var(--bg-main);
}

.sp-cta-text {
  font-size: 0.94rem;
  line-height: 2.1;
  color: var(--text-mid);
  margin-bottom: 36px;
}

/* ============================================================
   Achievements
   ============================================================ */
.achievements { padding: 128px 0; background: var(--bg-warm); }

.achievements-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 760px;
  margin: 0 auto;
}

.ach-card {
  display: flex;
  gap: 24px;
  background: var(--card);
  border-radius: 12px;
  padding: 20px 24px;
  box-shadow: 0 2px 12px rgba(232,132,42,0.08);
  border-left: 4px solid var(--primary);
  align-items: flex-start;
}

.ach-date {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  min-width: 80px;
  padding-top: 3px;
}

.ach-body { flex: 1; }

.ach-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  color: #fff;
  padding: 2px 10px;
  border-radius: 20px;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.ach-title {
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.5;
}

.ach-desc {
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 6px;
  line-height: 1.7;
}

.ach-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid rgba(232,132,42,0.4);
  transition: border-color 0.2s;
}
.ach-link:hover { border-color: var(--primary); }

@media (max-width: 600px) {
  .ach-card { flex-direction: column; gap: 8px; }
  .ach-date { min-width: auto; }
}

/* ============================================================
   Blog
   ============================================================ */
.blog { padding: 128px 0; background: var(--bg-main); }

.blog-feed {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 72px;
}

.blog-post {
  border-bottom: 1px solid rgba(232,132,42,0.15);
  padding-bottom: 72px;
}
.blog-post:last-child { border-bottom: none; padding-bottom: 0; }

.blog-post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.blog-post-date {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.blog-post-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.6rem;
  line-height: 1.4;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.blog-post-body {
  font-size: 0.93rem;
  line-height: 2;
  color: var(--text-mid);
  margin-bottom: 28px;
}
.blog-post-body p { margin-bottom: 1em; }
.blog-post-body p:last-child { margin-bottom: 0; }

.blog-post-photos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.blog-post-photos.photos-1 { grid-template-columns: 1fr; max-width: 480px; }
.blog-post-photos.photos-2 { grid-template-columns: repeat(2, 1fr); }

.blog-post-photo {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.blog-post-photo:hover { transform: scale(1.02); opacity: 0.92; }

/* lightbox */
#blog-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.88);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
#blog-lightbox.open { display: flex; }
#blog-lightbox img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 4px;
}
#blog-lightbox-close {
  position: fixed;
  top: 20px; right: 24px;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  opacity: 0.8;
}
#blog-lightbox-close:hover { opacity: 1; }

@media (max-width: 600px) {
  .blog-post-photos { grid-template-columns: repeat(2, 1fr); }
  .blog-post-photos.photos-1 { grid-template-columns: 1fr; }
  .blog-post-title { font-size: 1.3rem; }
}

/* ============================================================
   SNS  (cream)
   ============================================================ */
.sns {
  padding: 128px 0;
  background: var(--bg-warm);
}

.sns-follow { text-align: center; max-width: 680px; margin: 0 auto; }

.sns-follow-text {
  font-size: 0.92rem;
  line-height: 2.1;
  color: var(--text-mid);
  margin-bottom: 44px;
}

.sns-follow-buttons { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }

.sns-follow-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-color: rgba(232, 132, 42, 0.45);
  color: var(--text-dark);
}
.sns-follow-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(232, 132, 42, 0.06);
}

/* ============================================================
   Contact  (cream)
   ============================================================ */
.contact {
  padding: 128px 0;
  background: var(--bg-warm);
}

.contact-desc {
  text-align: center;
  font-size: 0.92rem;
  line-height: 2.1;
  color: var(--text-mid);
  max-width: 560px;
  margin: 0 auto 56px;
}

.contact-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }

.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  border: 1px solid rgba(232, 132, 42, 0.35);
  color: var(--text-mid);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  transition: var(--transition);
}
.contact-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(232, 132, 42, 0.06);
}

/* ============================================================
   Footer  (orange)
   ============================================================ */
.footer {
  background: var(--primary);
  text-align: center;
  padding: 64px 32px;
}

.footer-logo {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.3rem;
  letter-spacing: 0.18em;
  color: #fff8f0;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(255, 248, 240, 0.7);
  margin-bottom: 24px;
}

.footer-copy {
  font-size: 0.72rem;
  color: rgba(255, 248, 240, 0.55);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.footer-admin-link {
  display: inline-block;
  font-size: 0.65rem;
  color: rgba(255, 248, 240, 0.35);
  letter-spacing: 0.1em;
  border-bottom: 1px solid rgba(255, 248, 240, 0.2);
  padding-bottom: 1px;
  transition: color 0.3s, border-color 0.3s;
}
.footer-admin-link:hover {
  color: rgba(255, 248, 240, 0.85);
  border-color: rgba(255, 248, 240, 0.6);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-card:nth-child(2) { border-right: none; }
  .stat-card:nth-child(1),
  .stat-card:nth-child(2) { border-bottom: 1px solid rgba(232, 132, 42, 0.2); }

  .balloon-showcase { grid-template-columns: 1fr; gap: 48px; }
  .balloon-photo::before { display: none; }
  .balloon-photo img { height: 300px; }

  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-cell img { height: 200px; }

  .sp-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .sp-stat:nth-child(2) { border-right: none; }
  .sp-stat:nth-child(1),
  .sp-stat:nth-child(2) { border-bottom: 1px solid rgba(232, 132, 42, 0.15); }
  .sp-why-grid { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1rem; letter-spacing: 0.25em; color: var(--text-dark); }

  .hamburger { display: flex; z-index: 1000; }
  .nav-inner { padding: 0 24px; }
  .container { padding: 0 24px; }

  .about, .activities, .our-balloon, .contact, .sns { padding: 80px 0; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }

  .activity-item { grid-template-columns: 1fr; gap: 12px; padding: 36px 0; }
  .activity-num { font-size: 2.4rem; }

  .about-goal { flex-direction: column; padding: 32px 28px; }
  .section-header { margin-bottom: 48px; }
  .hero-title { font-size: clamp(1.1rem, 4.5vw, 1.6rem); }

  .sp-hero { padding: 80px 0 64px; }

  .sp-benefit-item {
    grid-template-columns: 40px 1fr;
    grid-template-rows: auto auto;
    gap: 0 20px;
    padding: 36px 0;
  }
  .sp-benefit-icon { grid-column: 2; grid-row: 1; margin-bottom: 12px; }
  .sp-benefit-body { grid-column: 2; grid-row: 2; }
  .sp-benefit-num { grid-row: 1 / 3; font-size: 2rem; }
  .sp-why-item { padding: 36px 28px; }
}