/* =========================================================
   なつみいろ / natsumi-iro  リンクページ デモ
   ピンク × まぁるい、やわらかいトーンのデザインシステム
   ========================================================= */

:root{
  --blush:#f7cdd8;
  --blush-soft:#fce4ea;
  --pink:#e58aa4;
  --pink-deep:#d16a89;
  --cream:#fff7f4;
  --paper:#fffdfc;
  --ink:#5c4850;
  --ink-soft:#8a7680;
  --gold:#dcae7d;
  --sage:#a9c6ac;
  --line:#f0dbe1;
  --shadow:0 10px 30px rgba(198,124,146,.18);
  --shadow-sm:0 4px 14px rgba(198,124,146,.14);
  --radius:22px;
  --radius-lg:30px;
  --maxw:1040px;
  --col:460px;
  --font-jp:"Zen Maru Gothic","Hiragino Maru Gothic ProN","ヒラギノ丸ゴ ProN",-apple-system,"BIZ UDPGothic","Yu Gothic",sans-serif;
  --font-en:"Quicksand","Zen Maru Gothic",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-jp);
  color:var(--ink);
  background:var(--cream);
  line-height:1.9;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.02em;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{list-style:none}
h1,h2,h3{font-weight:700;line-height:1.5;letter-spacing:.04em}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* ---------- 共通パーツ ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.en{font-family:var(--font-en);font-weight:600;letter-spacing:.12em}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:12px;color:var(--ink-soft);font-weight:500;
}
.sparkle{position:absolute;pointer-events:none;opacity:.7;z-index:0}

.section{padding:64px 0}
.section-head{text-align:center;margin-bottom:38px}
.section-head .en{display:block;color:var(--pink);font-size:13px;margin-bottom:8px}
.section-head h2{font-size:22px}
.section-head p{color:var(--ink-soft);font-size:13px;margin-top:10px}
.wave-divider{display:block;width:100%;height:24px;color:var(--blush-soft)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:14px;
  background:var(--pink);color:#fff;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
}
.btn:hover{transform:translateY(-2px);background:var(--pink-deep);box-shadow:var(--shadow)}
.btn.ghost{background:#fff;color:var(--pink-deep);border:1.5px solid var(--blush)}
.btn.ghost:hover{background:var(--blush-soft)}

/* =========================================================
   リンクページ本体（index）  ―  lit.link 風の1カラム
   ========================================================= */
.linkpage{
  min-height:100vh;
  background:
    radial-gradient(1200px 500px at 50% -10%, #fbe0e8 0%, rgba(251,224,232,0) 70%),
    linear-gradient(180deg,#fdeef2 0%,#fff7f4 45%,#fdeef2 100%);
  position:relative;overflow:hidden;
  padding:38px 18px 30px;
}
.linkpage .col{
  position:relative;z-index:1;
  width:100%;max-width:var(--col);margin:0 auto;
}

/* プロフィール */
.profile{text-align:center;padding:14px 10px 4px}
.profile .avatar{
  width:118px;height:118px;border-radius:50%;margin:0 auto 14px;
  background:#fff;padding:5px;box-shadow:var(--shadow);
  border:2px solid #fff;
}
.profile .avatar img{border-radius:50%}
.profile h1{font-size:20px;letter-spacing:.06em}
.profile .handle{font-family:var(--font-en);color:var(--pink);font-size:13px;margin-top:2px}
.profile .bio{font-size:13px;color:var(--ink-soft);margin:12px auto 0;max-width:340px}
.profile .meta{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:14px}

/* SNS アイコン列 */
.sns{display:flex;justify-content:center;gap:14px;margin:20px 0 24px}
.sns a{
  width:44px;height:44px;border-radius:50%;background:#fff;
  display:grid;place-items:center;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,background .18s ease;color:var(--pink-deep);
}
.sns a:hover{transform:translateY(-3px);background:var(--blush-soft)}
.sns svg{width:20px;height:20px}

/* リンクボタン */
.links{display:flex;flex-direction:column;gap:13px}
.link-btn{
  display:flex;align-items:center;gap:14px;
  background:#fff;border-radius:var(--radius);
  padding:15px 18px;box-shadow:var(--shadow-sm);
  position:relative;overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
  opacity:0;transform:translateY(14px);
}
.link-btn.in{opacity:1;transform:none}
.link-btn:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.link-btn .ic{
  flex:0 0 42px;width:42px;height:42px;border-radius:14px;
  background:var(--blush-soft);display:grid;place-items:center;font-size:20px;
}
.link-btn .tx{flex:1;min-width:0}
.link-btn .tx b{display:block;font-size:14px;letter-spacing:.03em}
.link-btn .tx span{display:block;font-size:11.5px;color:var(--ink-soft)}
.link-btn .chev{flex:0 0 auto;color:var(--blush);transition:transform .18s ease}
.link-btn:hover .chev{transform:translateX(3px);color:var(--pink)}
.link-btn .ripple{position:absolute;border-radius:50%;background:rgba(229,138,164,.28);transform:scale(0);animation:ripple .6s ease-out}
@keyframes ripple{to{transform:scale(2.6);opacity:0}}

/* サムネ付きカード */
.feature-cards{display:flex;flex-direction:column;gap:13px;margin-top:20px}
.fcard{
  display:flex;gap:0;background:#fff;border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease;
}
.fcard:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.fcard .thumb{flex:0 0 104px;background:var(--blush-soft)}
.fcard .thumb img{height:100%;object-fit:cover;width:100%}
.fcard .body{padding:13px 15px;display:flex;flex-direction:column;justify-content:center}
.fcard .body .tag{font-size:10.5px;color:var(--pink);font-weight:700;letter-spacing:.08em}
.fcard .body b{font-size:13.5px;margin:3px 0 4px}
.fcard .body span{font-size:11.5px;color:var(--ink-soft)}

/* アコーディオン（お返事の目安など） */
.acc{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-top:20px;overflow:hidden}
.acc summary{
  list-style:none;padding:15px 18px;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;cursor:pointer;
}
.acc summary::-webkit-details-marker{display:none}
.acc summary .plus{color:var(--pink);font-size:18px;transition:transform .2s ease}
.acc[open] summary .plus{transform:rotate(45deg)}
.acc .acc-body{padding:0 18px 16px;font-size:12.5px;color:var(--ink-soft);line-height:1.95}
.acc .acc-body p+p{margin-top:8px}

/* リンクページ フッター */
.lp-foot{text-align:center;margin-top:30px;font-size:11px;color:var(--ink-soft)}
.lp-foot .backnote{margin-top:6px;font-family:var(--font-en);letter-spacing:.1em;opacity:.7}

/* =========================================================
   下層ページ 共通（ヘッダー / フッター）
   ========================================================= */
.site-header{
  position:sticky;top:0;z-index:40;background:rgba(255,247,244,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;height:60px}
.site-header .logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:15px}
.site-header .logo img{width:30px;height:30px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:8px 12px;border-radius:999px;font-size:13px;color:var(--ink-soft);font-weight:500;transition:background .15s ease,color .15s ease}
.nav a:hover,.nav a[aria-current="page"]{background:var(--blush-soft);color:var(--pink-deep)}
.nav .cta{background:var(--pink);color:#fff}
.nav .cta:hover{background:var(--pink-deep);color:#fff}
.nav-toggle{display:none;width:40px;height:40px;border-radius:12px;background:#fff;box-shadow:var(--shadow-sm);font-size:18px;place-items:center}

.page-hero{
  background:linear-gradient(180deg,#fdeef2,#fff7f4);
  text-align:center;padding:52px 22px 40px;position:relative;overflow:hidden;
}
.page-hero .en{color:var(--pink);font-size:12px;display:block;margin-bottom:8px}
.page-hero h1{font-size:24px}
.page-hero p{color:var(--ink-soft);font-size:13px;margin-top:12px}
.crumbs{font-size:11px;color:var(--ink-soft);margin-top:16px}
.crumbs a:hover{color:var(--pink)}

.site-footer{background:#fff3f0;border-top:1px solid var(--line);padding:44px 0 30px;text-align:center;margin-top:20px}
.site-footer .logo{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:15px;margin-bottom:12px}
.site-footer .logo img{width:30px;height:30px}
.site-footer .fnav{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;font-size:12.5px;color:var(--ink-soft);margin-bottom:16px}
.site-footer .fnav a:hover{color:var(--pink)}
.site-footer small{font-size:11px;color:var(--ink-soft)}

/* =========================================================
   about
   ========================================================= */
.about-lead{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.about-lead .ph{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.about-lead h2{font-size:19px;margin-bottom:14px}
.about-lead p{font-size:13.5px;color:var(--ink-soft);margin-bottom:12px}
.about-lead .sign{font-family:var(--font-en);color:var(--pink);letter-spacing:.1em;margin-top:6px}

.commit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:8px}
.commit-card{background:#fff;border-radius:var(--radius);padding:24px 20px;box-shadow:var(--shadow-sm);text-align:center}
.commit-card .em{font-size:30px}
.commit-card b{display:block;font-size:14px;margin:10px 0 8px}
.commit-card p{font-size:12px;color:var(--ink-soft)}

.flow{max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.flow li{display:flex;gap:16px;background:#fff;border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-sm)}
.flow li .no{flex:0 0 34px;width:34px;height:34px;border-radius:50%;background:var(--blush-soft);color:var(--pink-deep);display:grid;place-items:center;font-family:var(--font-en);font-weight:700}
.flow li b{display:block;font-size:13.5px;margin-bottom:3px}
.flow li p{font-size:12px;color:var(--ink-soft)}

.faq{max-width:680px;margin:0 auto}
.faq details{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:12px;overflow:hidden}
.faq summary{list-style:none;padding:16px 20px;font-weight:700;font-size:13px;display:flex;justify-content:space-between;align-items:center;cursor:pointer}
.faq summary::-webkit-details-marker{display:none}
.faq summary .plus{color:var(--pink);font-size:18px;transition:transform .2s ease}
.faq details[open] summary .plus{transform:rotate(45deg)}
.faq .a{padding:0 20px 18px;font-size:12.5px;color:var(--ink-soft)}

/* =========================================================
   works（ギャラリー）
   ========================================================= */
.filter{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.filter button{
  padding:8px 18px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:#fff;border:1.5px solid var(--line);color:var(--ink-soft);
  transition:all .15s ease;
}
.filter button.active,.filter button:hover{background:var(--pink);border-color:var(--pink);color:#fff}

.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.work-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease;cursor:pointer;
}
.work-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.work-card .pic{aspect-ratio:1/1;background:var(--blush-soft)}
.work-card .cap{padding:14px 16px}
.work-card .cap .c{font-size:10.5px;color:var(--pink);font-weight:700;letter-spacing:.06em}
.work-card .cap b{display:block;font-size:13px;margin:4px 0 3px}
.work-card .cap span{font-size:11.5px;color:var(--ink-soft)}
.work-card.hide{display:none}

/* ライトボックス */
.lb{position:fixed;inset:0;background:rgba(74,52,60,.78);display:none;place-items:center;z-index:90;padding:24px}
.lb.open{display:grid}
.lb figure{max-width:460px;width:100%;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.lb figure img{width:100%}
.lb figcaption{padding:16px 20px}
.lb figcaption b{display:block;font-size:14px;margin-bottom:4px}
.lb figcaption span{font-size:12px;color:var(--ink-soft)}
.lb .x{position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:50%;background:#fff;font-size:20px;display:grid;place-items:center;box-shadow:var(--shadow)}

/* =========================================================
   events
   ========================================================= */
.ev-toggle{display:flex;gap:10px;justify-content:center;margin-bottom:30px}
.ev-toggle button{padding:9px 22px;border-radius:999px;font-weight:700;font-size:13px;background:#fff;border:1.5px solid var(--line);color:var(--ink-soft)}
.ev-toggle button.active{background:var(--pink);border-color:var(--pink);color:#fff}
.ev-list{max-width:680px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.ev-item{display:flex;gap:18px;background:#fff;border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow-sm)}
.ev-item .date{flex:0 0 64px;text-align:center}
.ev-item .date .m{font-family:var(--font-en);font-size:11px;color:var(--pink);font-weight:700}
.ev-item .date .d{font-family:var(--font-en);font-size:26px;font-weight:700;line-height:1}
.ev-item .date .y{font-size:10px;color:var(--ink-soft)}
.ev-item .info b{display:block;font-size:14px;margin-bottom:5px}
.ev-item .info p{font-size:12px;color:var(--ink-soft);margin-bottom:3px}
.ev-item .info .map{font-size:11.5px;color:var(--pink);font-weight:700}
.ev-item.done{opacity:.66}
.ev-group{display:none}
.ev-group.show{display:flex;flex-direction:column;gap:16px}

/* =========================================================
   voice
   ========================================================= */
.voices{columns:2;column-gap:20px;max-width:760px;margin:0 auto}
.voice-card{break-inside:avoid;background:#fff;border-radius:var(--radius);padding:22px 22px;box-shadow:var(--shadow-sm);margin-bottom:20px}
.voice-card .stars{color:var(--gold);font-size:13px;letter-spacing:2px;margin-bottom:8px}
.voice-card p{font-size:12.5px;color:var(--ink);line-height:1.95}
.voice-card .who{margin-top:12px;font-size:11.5px;color:var(--ink-soft);font-weight:700}
.voice-note{text-align:center;font-size:11px;color:var(--ink-soft);margin-top:24px}

/* =========================================================
   contact
   ========================================================= */
.form-wrap{max-width:600px;margin:0 auto;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:36px 34px}
.field{margin-bottom:20px}
.field label{display:block;font-size:12.5px;font-weight:700;margin-bottom:7px}
.field label .req{color:var(--pink);font-size:10px;margin-left:6px;font-weight:700}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:14px;border:1.5px solid var(--line);
  background:var(--paper);font-family:inherit;font-size:13px;color:var(--ink);transition:border .15s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--pink)}
.field textarea{resize:vertical;min-height:120px}
.field .err{display:none;color:var(--pink-deep);font-size:11px;margin-top:5px}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--pink-deep);background:#fff5f7}
.field.invalid .err{display:block}
.counter{text-align:right;font-size:10.5px;color:var(--ink-soft);margin-top:4px}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:12px;color:var(--ink-soft)}
.consent input{width:auto;margin-top:3px}
.form-submit{width:100%;padding:15px;border-radius:999px;background:var(--pink);color:#fff;font-weight:700;font-size:15px;box-shadow:var(--shadow-sm);transition:background .18s ease,transform .18s ease}
.form-submit:hover{background:var(--pink-deep);transform:translateY(-2px)}
.form-success{display:none;text-align:center;padding:20px 10px}
.form-success.show{display:block}
.form-success .em{font-size:44px}
.form-success h3{font-size:17px;margin:12px 0 8px}
.form-success p{font-size:12.5px;color:var(--ink-soft)}
.contact-aside{max-width:600px;margin:22px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-aside .c{background:#fff;border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-sm);font-size:12px}
.contact-aside .c b{display:block;font-size:12.5px;margin-bottom:6px}
.contact-aside .c .copy{margin-top:8px;font-size:11px;color:var(--pink);font-weight:700}

/* =========================================================
   レスポンシブ
   ========================================================= */
@media (max-width:860px){
  .about-lead{grid-template-columns:1fr;gap:22px}
  .commit-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  body{font-size:14px}
  .nav{position:fixed;inset:60px 0 auto 0;flex-direction:column;background:var(--cream);
    border-bottom:1px solid var(--line);padding:12px 22px 18px;gap:4px;display:none}
  .nav.open{display:flex}
  .nav a{padding:12px 10px}
  .nav-toggle{display:grid}
  .gallery{grid-template-columns:1fr 1fr;gap:12px}
  .voices{columns:1}
  .contact-aside{grid-template-columns:1fr}
  .form-wrap{padding:26px 20px}
  .page-hero h1{font-size:20px}
  .ev-item{flex-direction:row;gap:14px;padding:16px}
}
@media (max-width:380px){
  .gallery{grid-template-columns:1fr}
}