/* ============================================================
   MAPLE FIELD THREAD — Maple Field Thread
   Shared Stylesheet v1.0 | 2026
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho+B1:wght@400;500;600;700;800&family=Shippori+Mincho:wght@400;500;600&family=Noto+Serif+JP:wght@300;400;500;600&family=Jost:wght@200;300;400;500&display=swap');

/* ---- CSS Variables ---- */
:root {
  --amber:       #C87941;
  --amber-light: #D9924E;
  --amber-dark:  #A0602E;
  --cream:       #FAF6EF;
  --cream-dark:  #F2EBD9;
  --linen:       #E8DCC8;
  --linen-dark:  #D4C4A8;
  --green:       #3D5C38;
  --green-light: #5A7A54;
  --copper:      #B87040;
  --brown-dark:  #2C2416;
  --brown-mid:   #5C4A32;
  --brown-light: #8B7355;
  --white:       #FDFBF7;
  --shadow:      rgba(44,36,22,0.12);
  --overlay:     rgba(44,36,22,0.45);

  --font-heading: 'Shippori Mincho B1', 'Noto Serif JP', serif;
  --font-body:    'Noto Serif JP', 'Shippori Mincho', serif;
  --font-accent:  'Jost', sans-serif;

  --transition: all 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
  --radius: 2px;
  --max-width: 1280px;
  --nav-h: 72px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background-color: var(--cream);
  color: var(--brown-dark);
  font-family: var(--font-body);
  line-height: 1.9;
  overflow-x: hidden;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }

/* Paper texture */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 9999; opacity: 0.5;
}

/* ---- Typography ---- */
h1,h2,h3,h4,h5 { font-family: var(--font-heading); font-weight: 600; line-height: 1.4; letter-spacing: 0.04em; }
h1 { font-size: clamp(2.2rem,5vw,4rem); }
h2 { font-size: clamp(1.6rem,3.5vw,2.8rem); }
h3 { font-size: clamp(1.2rem,2.5vw,1.9rem); }
h4 { font-size: clamp(1rem,2vw,1.4rem); }
p { margin-bottom: 1.2em; }
p:last-child { margin-bottom: 0; }
.lead { font-size: 1.1rem; line-height: 2; color: var(--brown-mid); }

.section-label {
  font-family: var(--font-accent); font-size: 0.66rem;
  letter-spacing: 0.28em; text-transform: uppercase; color: var(--amber);
  display: flex; align-items: center; gap: 12px; margin-bottom: 1.5rem;
}
.section-label::after { content:''; display:block; width:40px; height:1px; background:var(--amber); }

.caption { font-family:var(--font-accent); font-size:0.7rem; letter-spacing:0.18em; text-transform:uppercase; color:var(--brown-light); }
.text-amber { color: var(--amber); }
.text-green { color: var(--green); }
.text-light { color: var(--brown-light); }

/* ---- Layout ---- */
.container { width:100%; max-width:var(--max-width); margin:0 auto; padding:0 clamp(20px,4vw,60px); }
.section    { padding: clamp(60px,8vw,120px) 0; }
.section-sm { padding: clamp(40px,5vw,80px) 0; }
.grid-2 { display:grid; grid-template-columns:repeat(2,1fr); gap:clamp(24px,3vw,48px); }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(24px,3vw,40px); }
.grid-4 { display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(16px,2vw,32px); }
.flex { display:flex; } .flex-col { flex-direction:column; } .items-center { align-items:center; }
.justify-between { justify-content:space-between; } .gap-md { gap:24px; } .text-center { text-align:center; }

/* ---- Navigation ---- */
.site-nav {
  position:fixed; top:0; left:0; right:0; z-index:1000; height:var(--nav-h);
  display:flex; align-items:center; padding:0 clamp(20px,4vw,60px);
  transition: var(--transition);
}
.site-nav.scrolled {
  background:rgba(250,246,239,0.96); backdrop-filter:blur(12px);
  border-bottom:1px solid var(--linen); box-shadow:0 2px 20px var(--shadow);
}
.nav-inner { display:flex; align-items:center; justify-content:space-between; width:100%; max-width:var(--max-width); margin:0 auto; }
.nav-logo { display:flex; align-items:center; gap:12px; }
.nav-logo svg { width:36px; height:40px; }
.nav-logo-text { display:flex; flex-direction:column; line-height:1.2; }
.nav-logo-jp { font-family:var(--font-heading); font-size:0.8rem; font-weight:600; color:var(--brown-dark); letter-spacing:0.1em; }
.nav-logo-en { font-family:var(--font-accent); font-size:0.58rem; letter-spacing:0.22em; color:var(--brown-light); text-transform:uppercase; }
.site-nav.hero-nav .nav-logo-jp { color: var(--cream); }
.site-nav.hero-nav .nav-logo-en { color: rgba(250,246,239,0.65); }
.site-nav.hero-nav.scrolled .nav-logo-jp { color: var(--brown-dark); }
.site-nav.hero-nav.scrolled .nav-logo-en { color: var(--brown-light); }
.site-nav.hero-nav .nav-links a { color: rgba(250,246,239,0.85); }
.site-nav.hero-nav.scrolled .nav-links a { color: var(--brown-mid); }
.site-nav.hero-nav .nav-hamburger span { background: var(--cream); }
.site-nav.hero-nav.scrolled .nav-hamburger span { background: var(--brown-dark); }

.nav-links { display:flex; align-items:center; gap:clamp(14px,1.8vw,28px); }
.nav-links a { font-family:var(--font-body); font-size:0.8rem; color:var(--brown-mid); position:relative; padding-bottom:2px; letter-spacing:0.06em; }
.nav-links a::after { content:''; position:absolute; bottom:0; left:0; width:0; height:1px; background:var(--amber); transition:var(--transition); }
.nav-links a:hover, .nav-links a.active { color:var(--brown-dark); }
.nav-links a:hover::after, .nav-links a.active::after { width:100%; }

.nav-hamburger { display:none; flex-direction:column; gap:5px; cursor:pointer; padding:8px; background:none; border:none; }
.nav-hamburger span { display:block; width:24px; height:1.5px; background:var(--brown-dark); transition:var(--transition); }
.nav-hamburger.open span:nth-child(1) { transform:translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity:0; }
.nav-hamburger.open span:nth-child(3) { transform:translateY(-6.5px) rotate(-45deg); }

.mobile-menu {
  position:fixed; inset:0; background:var(--cream); z-index:999;
  display:flex; flex-direction:column; justify-content:center; align-items:center; gap:6px;
  opacity:0; pointer-events:none; transition:opacity 0.4s ease;
}
.mobile-menu.open { opacity:1; pointer-events:all; }
.mobile-menu a { font-family:var(--font-heading); font-size:clamp(1.3rem,4vw,1.9rem); color:var(--brown-dark); letter-spacing:0.1em; padding:8px 0; }

.mobile-menu-close { position:absolute; top:24px; right:24px; font-size:1.5rem; cursor:pointer; background:none; border:none; color:var(--brown-mid); padding:8px; }

/* ---- Hero ---- */
.hero { position:relative; height:100vh; min-height:600px; display:flex; align-items:flex-end; overflow:hidden; }
.hero-sm { position:relative; height:55vh; min-height:380px; display:flex; align-items:flex-end; overflow:hidden; }
.hero-bg { position:absolute; inset:0; object-fit:cover; width:100%; height:100%; }
.hero-overlay { position:absolute; inset:0; background:linear-gradient(to top,rgba(44,36,22,0.75) 0%,rgba(44,36,22,0.28) 50%,rgba(44,36,22,0.05) 100%); }
.hero-content { position:relative; z-index:2; padding:0 clamp(20px,4vw,60px) clamp(40px,6vw,80px); max-width:var(--max-width); margin:0 auto; width:100%; }
.hero-content h1 { color:var(--cream); }
.hero-content .lead { color:rgba(250,246,239,0.82); max-width:560px; }
.hero-content .section-label { color:var(--linen-dark); }
.hero-content .section-label::after { background:var(--linen-dark); }
.hero-kana { position:absolute; right:clamp(20px,4vw,60px); top:50%; transform:translateY(-50%); writing-mode:vertical-rl; font-family:var(--font-heading); font-size:clamp(0.65rem,1vw,0.85rem); color:rgba(250,246,239,0.45); letter-spacing:0.2em; z-index:2; }

.scroll-indicator { position:absolute; bottom:32px; left:50%; transform:translateX(-50%); z-index:2; display:flex; flex-direction:column; align-items:center; gap:8px; }
.scroll-indicator span { font-family:var(--font-accent); font-size:0.6rem; letter-spacing:0.24em; color:rgba(250,246,239,0.55); text-transform:uppercase; }
.scroll-line { width:1px; height:40px; background:rgba(250,246,239,0.3); position:relative; overflow:hidden; }
.scroll-line::after { content:''; position:absolute; top:-100%; left:0; width:100%; height:100%; background:var(--amber); animation:scrollAnim 1.8s ease infinite; }
@keyframes scrollAnim { 0%{ top:-100%; } 100%{ top:100%; } }

/* ---- Buttons ---- */
.btn { display:inline-flex; align-items:center; gap:10px; padding:12px 28px; font-family:var(--font-body); font-size:0.82rem; letter-spacing:0.12em; border:none; cursor:pointer; transition:var(--transition); }
.btn-amber { background:var(--amber); color:var(--cream); }
.btn-amber:hover { background:var(--amber-dark); transform:translateY(-2px); box-shadow:0 8px 24px rgba(200,121,65,0.35); }
.btn-outline { background:transparent; border:1px solid var(--brown-mid); color:var(--brown-dark); }
.btn-outline:hover { background:var(--brown-dark); color:var(--cream); }
.btn-outline-light { background:transparent; border:1px solid rgba(250,246,239,0.45); color:var(--cream); }
.btn-outline-light:hover { background:rgba(250,246,239,0.12); }
.btn-green { background:var(--green); color:var(--cream); }
.btn-green:hover { background:var(--green-light); transform:translateY(-2px); }
.btn-arrow::after { content:'→'; font-family:var(--font-accent); transition:transform 0.3s ease; }
.btn-arrow:hover::after { transform:translateX(4px); }

/* ---- Cards ---- */
.card { background:var(--white); overflow:hidden; transition:var(--transition); }
.card:hover { transform:translateY(-4px); box-shadow:0 16px 40px var(--shadow); }
.card-img-wrap { overflow:hidden; }
.card-img { width:100%; aspect-ratio:4/3; object-fit:cover; transition:transform 0.6s ease; }
.card:hover .card-img { transform:scale(1.04); }
.card-body { padding:24px; }
.card-label { font-family:var(--font-accent); font-size:0.63rem; letter-spacing:0.22em; text-transform:uppercase; color:var(--amber); margin-bottom:8px; }
.card-title { font-family:var(--font-heading); font-size:1.05rem; font-weight:600; color:var(--brown-dark); margin-bottom:10px; line-height:1.5; }
.card-text { font-size:0.84rem; color:var(--brown-light); line-height:1.8; }
.card-date { font-family:var(--font-accent); font-size:0.66rem; color:var(--brown-light); letter-spacing:0.1em; margin-top:14px; }

/* ---- Feature Grid ---- */
.feature-grid { display:grid; grid-template-columns:1fr 1fr; align-items:stretch; }
.feature-image { position:relative; overflow:hidden; min-height:400px; }
.feature-image img { width:100%; height:100%; object-fit:cover; transition:transform 0.8s ease; }
.feature-image:hover img { transform:scale(1.03); }
.feature-content { padding:clamp(36px,5vw,72px); display:flex; flex-direction:column; justify-content:center; }

/* ---- Dividers & Ornaments ---- */
.divider { width:100%; height:1px; background:var(--linen); margin:clamp(40px,5vw,60px) 0; }
.divider-amber { background:var(--amber); width:60px; height:2px; margin:0; }
.ornament { font-family:var(--font-accent); font-size:0.62rem; letter-spacing:0.3em; color:var(--linen-dark); text-align:center; padding:12px 0; }

/* ---- Vertical Text ---- */
.vertical-text { writing-mode:vertical-rl; text-orientation:mixed; letter-spacing:0.18em; }

/* ---- Quote ---- */
.blockquote { border-left:2px solid var(--amber); padding:14px 0 14px 28px; margin:28px 0; }
.blockquote p { font-family:var(--font-heading); font-size:1.15rem; font-style:italic; color:var(--brown-mid); line-height:1.8; }
.blockquote cite { display:block; font-family:var(--font-accent); font-size:0.7rem; letter-spacing:0.18em; color:var(--brown-light); margin-top:10px; }

/* ---- Tags ---- */
.tag { display:inline-block; padding:4px 12px; font-family:var(--font-accent); font-size:0.62rem; letter-spacing:0.16em; text-transform:uppercase; border:1px solid var(--linen-dark); color:var(--brown-light); border-radius:var(--radius); }
.tag-amber { border-color:var(--amber); color:var(--amber); }
.tag-green { border-color:var(--green); color:var(--green); }

/* ---- Backgrounds ---- */
.bg-linen { background:var(--linen); }
.bg-cream  { background:var(--cream-dark); }
.bg-dark   { background:var(--brown-dark); }
.bg-green  { background:var(--green); }
.bg-amber  { background:var(--amber); }
.woven-bg {
  background-image:
    repeating-linear-gradient(0deg,transparent,transparent 18px,rgba(200,121,65,0.04) 18px,rgba(200,121,65,0.04) 19px),
    repeating-linear-gradient(90deg,transparent,transparent 18px,rgba(200,121,65,0.04) 18px,rgba(200,121,65,0.04) 19px);
}

/* ---- Footer ---- */
.site-footer { background:var(--brown-dark); color:var(--linen); padding:clamp(50px,7vw,90px) 0 0; }
.footer-top { display:grid; grid-template-columns:1.6fr 1fr 1fr 1.2fr; gap:clamp(24px,4vw,60px); padding-bottom:clamp(40px,5vw,60px); border-bottom:1px solid rgba(232,220,200,0.15); }
.footer-brand .nav-logo-jp { color:var(--linen); }
.footer-brand .nav-logo-en { color:var(--brown-light); }
.footer-tagline { font-size:0.8rem; color:var(--brown-light); margin-top:16px; line-height:1.9; max-width:280px; }
.footer-heading { font-family:var(--font-accent); font-size:0.63rem; letter-spacing:0.28em; text-transform:uppercase; color:var(--amber); margin-bottom:16px; }
.footer-links { display:flex; flex-direction:column; gap:10px; }
.footer-links a { font-size:0.8rem; color:var(--brown-light); }
.footer-links a:hover { color:var(--linen); }
.footer-contact-item { display:flex; align-items:flex-start; gap:10px; font-size:0.78rem; color:var(--brown-light); margin-bottom:10px; line-height:1.7; }
.footer-contact-item .fi { color:var(--amber); font-size:0.68rem; margin-top:2px; flex-shrink:0; }
.footer-bottom { padding:22px 0; display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px; }
.footer-copy { font-family:var(--font-accent); font-size:0.66rem; letter-spacing:0.12em; color:var(--brown-light); }
.footer-social { display:flex; gap:16px; }
.footer-social a { font-family:var(--font-accent); font-size:0.66rem; letter-spacing:0.14em; color:var(--brown-light); }
.footer-social a:hover { color:var(--amber); }

/* ---- Popup ---- */
.popup-notification {
  position:fixed; bottom:32px; right:32px; z-index:10000; max-width:360px;
  background:var(--white); border-left:3px solid var(--amber);
  box-shadow:0 8px 32px var(--shadow); padding:18px 22px;
  transform:translateX(calc(100% + 50px)); opacity:0; transition:var(--transition);
  display:flex; align-items:flex-start; gap:14px;
}
.popup-notification.show { transform:translateX(0); opacity:1; }
.popup-notification.popup-success { border-color:var(--green); }
.popup-notification.popup-error { border-color:#c0392b; }
.popup-icon { font-size:1.2rem; flex-shrink:0; margin-top:1px; }
.popup-body { flex:1; }
.popup-title { font-family:var(--font-heading); font-size:0.86rem; font-weight:600; color:var(--brown-dark); margin-bottom:4px; }
.popup-message { font-size:0.78rem; color:var(--brown-light); line-height:1.6; }
.popup-close { background:none; border:none; font-size:1rem; color:var(--brown-light); cursor:pointer; padding:0; flex-shrink:0; }

/* ---- Reveal Animations ---- */
.reveal { opacity:0; transform:translateY(28px); transition:opacity 0.7s ease,transform 0.7s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-left { opacity:0; transform:translateX(-28px); transition:opacity 0.7s ease,transform 0.7s ease; }
.reveal-left.visible { opacity:1; transform:translateX(0); }
.reveal-right { opacity:0; transform:translateX(28px); transition:opacity 0.7s ease,transform 0.7s ease; }
.reveal-right.visible { opacity:1; transform:translateX(0); }
.reveal-delay-1 { transition-delay:0.1s; }
.reveal-delay-2 { transition-delay:0.2s; }
.reveal-delay-3 { transition-delay:0.3s; }
.reveal-delay-4 { transition-delay:0.4s; }

/* ---- Page Header ---- */
.page-header { padding-top:var(--nav-h); background:var(--brown-dark); position:relative; overflow:hidden; }
.page-header-bg { position:absolute; inset:0; object-fit:cover; width:100%; height:100%; opacity:0.32; }
.page-header-content { position:relative; z-index:2; padding:clamp(50px,7vw,90px) clamp(20px,4vw,60px); max-width:var(--max-width); margin:0 auto; }
.page-header h1 { color:var(--cream); }
.page-header .section-label { color:var(--linen-dark); }
.page-header .section-label::after { background:var(--linen-dark); }

/* ---- Maker Card ---- */
.maker-card { display:grid; grid-template-columns:280px 1fr; background:var(--white); overflow:hidden; transition:var(--transition); }
.maker-card:hover { box-shadow:0 12px 40px var(--shadow); }
.maker-img { height:320px; object-fit:cover; width:100%; }
.maker-info { padding:36px; }
.maker-craft { font-family:var(--font-accent); font-size:0.63rem; letter-spacing:0.24em; text-transform:uppercase; color:var(--amber); margin-bottom:10px; }

/* ---- Season Badge ---- */
.season-badge { display:inline-flex; align-items:center; gap:8px; padding:5px 14px; font-family:var(--font-accent); font-size:0.62rem; letter-spacing:0.18em; text-transform:uppercase; border-radius:var(--radius); }
.season-spring { background:#C9A9B8; color:var(--white); }
.season-summer { background:var(--green); color:var(--cream); }
.season-autumn { background:var(--amber); color:var(--cream); }
.season-winter { background:#7A8FA6; color:var(--white); }

/* ---- Breadcrumb ---- */
.breadcrumb { display:flex; align-items:center; gap:8px; font-family:var(--font-accent); font-size:0.66rem; letter-spacing:0.14em; color:var(--brown-light); padding-top:calc(var(--nav-h) + 18px); padding-bottom:18px; }
.breadcrumb a { color:var(--brown-light); }
.breadcrumb a:hover { color:var(--amber); }
.breadcrumb span { color:var(--linen-dark); }

/* ---- Form ---- */
.form-group { margin-bottom:20px; }
.form-label { display:block; font-family:var(--font-accent); font-size:0.66rem; letter-spacing:0.2em; text-transform:uppercase; color:var(--brown-mid); margin-bottom:8px; }
.form-input,.form-textarea,.form-select { width:100%; padding:12px 16px; background:var(--cream-dark); border:1px solid var(--linen-dark); color:var(--brown-dark); font-family:var(--font-body); font-size:0.86rem; border-radius:var(--radius); transition:var(--transition); outline:none; }
.form-input:focus,.form-textarea:focus,.form-select:focus { border-color:var(--amber); background:var(--cream); box-shadow:0 0 0 3px rgba(200,121,65,0.1); }
.form-textarea { min-height:130px; resize:vertical; }

/* ---- Archive Grid ---- */
.archive-grid { display:grid; grid-template-columns:repeat(3,1fr); grid-auto-rows:220px; gap:4px; }
.archive-item { overflow:hidden; position:relative; cursor:pointer; }
.archive-item:nth-child(5n+1) { grid-column:span 2; }
.archive-item img { width:100%; height:100%; object-fit:cover; transition:transform 0.6s ease; }
.archive-item:hover img { transform:scale(1.06); }
.archive-overlay { position:absolute; inset:0; background:var(--overlay); opacity:0; transition:var(--transition); display:flex; align-items:center; justify-content:center; flex-direction:column; gap:8px; text-align:center; padding:20px; }
.archive-item:hover .archive-overlay { opacity:1; }
.archive-overlay p { color:var(--cream); font-size:0.8rem; margin:0; }
.archive-overlay .caption { color:var(--linen-dark); }

/* ---- Stat ---- */
.stat-block { text-align:center; }
.stat-number { font-family:var(--font-accent); font-size:clamp(2.4rem,5vw,4rem); font-weight:200; color:var(--amber); line-height:1; }
.stat-label { font-family:var(--font-body); font-size:0.8rem; color:var(--brown-light); margin-top:8px; }

/* ---- Info Table ---- */
.info-table { width:100%; border-collapse:collapse; }
.info-table th,.info-table td { padding:13px 18px; border-bottom:1px solid var(--linen); font-size:0.86rem; text-align:left; line-height:1.7; }
.info-table th { font-family:var(--font-accent); font-size:0.65rem; letter-spacing:0.16em; text-transform:uppercase; color:var(--brown-light); width:180px; background:var(--cream-dark); }

/* ---- Page Loader ---- */
.page-loader { position:fixed; inset:0; background:var(--cream); z-index:99999; display:flex; align-items:center; justify-content:center; transition:opacity 0.6s ease,visibility 0.6s ease; }
.page-loader.hidden { opacity:0; visibility:hidden; }
.loader-inner { display:flex; flex-direction:column; align-items:center; gap:20px; }
.loader-logo { animation:loaderPulse 1.5s ease infinite; }
@keyframes loaderPulse { 0%,100%{opacity:1;transform:scale(1);} 50%{opacity:0.5;transform:scale(0.95);} }
.loader-text { font-family:var(--font-accent); font-size:0.63rem; letter-spacing:0.3em; color:var(--brown-light); text-transform:uppercase; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width:5px; }
::-webkit-scrollbar-track { background:var(--cream); }
::-webkit-scrollbar-thumb { background:var(--linen-dark); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--amber); }

/* ---- Pagination ---- */
.pagination { display:flex; align-items:center; justify-content:center; gap:8px; margin-top:48px; }
.pagination a,.pagination span { display:flex; align-items:center; justify-content:center; width:40px; height:40px; font-family:var(--font-accent); font-size:0.78rem; border:1px solid var(--linen-dark); color:var(--brown-mid); transition:var(--transition); }
.pagination a:hover,.pagination .current { background:var(--amber); border-color:var(--amber); color:var(--cream); }

/* ---- Responsive ---- */
@media (max-width:1024px) {
  .grid-4 { grid-template-columns:repeat(2,1fr); }
  .footer-top { grid-template-columns:1fr 1fr; }
  .maker-card { grid-template-columns:220px 1fr; }
}
@media (max-width:768px) {
  :root { --nav-h:64px; }
  .nav-links { display:none; }
  .nav-hamburger { display:flex; }
  .grid-2,.grid-3,.grid-4 { grid-template-columns:1fr; }
  .feature-grid { grid-template-columns:1fr; }
  .feature-image { height:280px; min-height:auto; }
  .footer-top { grid-template-columns:1fr; gap:28px; }
  .footer-bottom { flex-direction:column; align-items:flex-start; }
  .maker-card { grid-template-columns:1fr; }
  .maker-img { height:240px; }
  .hero-kana { display:none; }
  .archive-grid { grid-template-columns:repeat(2,1fr); }
  .archive-item:nth-child(5n+1) { grid-column:span 1; }
  .popup-notification { left:16px; right:16px; bottom:16px; max-width:none; }
}
@media (max-width:480px) {
  h1 { font-size:1.85rem; }
  h2 { font-size:1.45rem; }
  .section { padding:48px 0; }
  .btn { padding:11px 22px; font-size:0.78rem; }
  .archive-grid { grid-template-columns:1fr; }
}