/* ===== DOM — Do One More. / Brand & Reservation Site =====
   Light theme: 白背景 × 黒テキスト × 赤アクセント
   ------------------------------------------------------- */
:root{
  --bg:#ffffff;          /* 背景（基本） */
  --bg-soft:#f6f5f3;     /* 背景（面・カード・フッター） */
  --ink:#101010;         /* テキスト（基本） */
  --ink-soft:#3b3b3b;    /* テキスト（本文） */
  --muted:#6f6f6f;       /* テキスト（補足） */
  --line:#e4e3df;        /* 罫線 */
  --line-strong:#cfceca; /* 罫線（強） */
  --red:#d4172a;         /* 差し色 */
  --red-deep:#a81120;
  --red-tint:rgba(212,23,42,.07);
  --shadow:0 10px 30px rgba(16,16,16,.07);
  --maxw:1100px;
  --font:"Helvetica Neue",Arial,"Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:var(--font);line-height:1.8;
  -webkit-font-smoothing:antialiased;letter-spacing:.01em;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;color:var(--red);font-weight:700}
.muted{color:var(--muted)}

/* ===== Nav ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 24px;background:rgba(255,255,255,.88);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.nav .brand,.nav .brand picture{display:flex;align-items:center}
.nav .brand img{height:46px;width:auto;display:block;filter:invert(1)}
.nav .links{display:flex;gap:26px;font-size:.8rem;letter-spacing:.12em;font-weight:600}
.nav .links a:hover{color:var(--red)}
.nav .right{display:flex;align-items:center;gap:18px}
.nav .cta{border:1px solid var(--ink);padding:8px 18px;border-radius:2px;font-size:.78rem;letter-spacing:.12em;font-weight:700;transition:.2s}
.nav .cta:hover{background:var(--red);border-color:var(--red);color:#fff}

/* Hamburger */
.nav .burger{display:none;flex-direction:column;justify-content:center;gap:5px;
  width:36px;height:36px;border:none;background:transparent;cursor:pointer;padding:0}
.nav .burger span{display:block;width:24px;height:2px;background:var(--ink);margin:0 auto;transition:.25s}
.nav .burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav .burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav .burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Mobile menu panel */
.mobile-menu{display:none;position:fixed;top:0;left:0;right:0;bottom:0;z-index:49;
  background:rgba(255,255,255,.98);backdrop-filter:blur(14px);
  flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:1.4rem;font-weight:800;letter-spacing:.1em;padding:14px 0}
.mobile-menu a:hover,.mobile-menu a:active{color:var(--red)}
.mobile-menu .cta{margin-top:18px;border:1px solid var(--red);background:var(--red);color:#fff;
  padding:14px 40px;border-radius:2px;font-size:1rem}

@media(max-width:680px){
  .nav .links,.nav .right .cta{display:none}
  .nav .burger{display:flex}
  .nav .brand img{height:40px}
}

/* ===== Hero（左：コピー／右：写真の分割レイアウト） ===== */
.hero{position:relative;min-height:100vh;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);
  background:var(--bg);overflow:hidden}
.hero .inner{grid-column:1;grid-row:1;position:relative;z-index:2;min-width:0;
  display:flex;flex-direction:column;justify-content:center;
  padding:130px 40px 90px 0;max-width:620px;margin-left:auto;width:100%}
.hero .hero-media{grid-column:2;grid-row:1;position:relative;
  background:var(--bg-soft) center 22%/cover no-repeat;
  background-image:url('../img/hero.jpg?v=20260905');
  background-image:-webkit-image-set(url('../img/hero.webp?v=20260905') type('image/webp'), url('../img/hero.jpg?v=20260905') type('image/jpeg'));
  background-image:image-set(url('../img/hero.webp?v=20260905') type('image/webp'), url('../img/hero.jpg?v=20260905') type('image/jpeg'))}
.hero .hero-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--bg) 0%,rgba(255,255,255,.35) 14%,rgba(255,255,255,0) 34%)}
.hero h1{font-size:clamp(2.6rem,5.8vw,4.4rem);line-height:1;font-weight:800;letter-spacing:-.02em}
.hero h1 .line{display:block}
.hero h1 .accent{color:var(--red)}
.hero .sub{margin-top:22px;font-size:clamp(1rem,2.1vw,1.3rem);font-weight:700;color:var(--ink-soft);line-height:1.7}
.hero .meta{margin-top:30px;display:flex;flex-wrap:wrap;gap:6px 24px;font-size:.85rem;letter-spacing:.08em;color:var(--muted)}
.hero .meta b{color:var(--ink);font-weight:700}
.actions{display:flex;gap:14px;flex-wrap:wrap}
.hero .actions{margin-top:34px}
@media(max-width:900px){
  .hero{grid-template-columns:minmax(0,1fr);min-height:0;padding-top:68px}
  .hero .hero-media{grid-column:1;grid-row:1;min-height:56vh;aspect-ratio:4/3}
  .hero .hero-media::after{background:linear-gradient(180deg,rgba(255,255,255,0) 60%,rgba(255,255,255,.9) 100%)}
  .hero .inner{grid-column:1;grid-row:2;max-width:none;margin:0;padding:40px 24px 70px}
}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:700;
  letter-spacing:.1em;font-size:.92rem;padding:15px 30px;border-radius:2px;transition:.2s;cursor:pointer;border:1px solid transparent}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-deep)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}

/* ===== Sections ===== */
section{padding:96px 0}
.section-head{margin-bottom:46px}
.section-head h2{font-size:clamp(1.8rem,4.5vw,3rem);font-weight:800;line-height:1.15;margin-top:10px}
.divider{border:0;border-top:1px solid var(--line)}

/* Event card */
.event{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
@media(max-width:780px){.event{grid-template-columns:1fr}}
.event .specs{list-style:none;border-top:1px solid var(--line)}
.event .specs li{display:flex;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid var(--line);font-size:.96rem}
.event .specs li span:first-child{color:var(--muted);letter-spacing:.08em;font-size:.82rem;text-transform:uppercase}
.event .specs li b{font-weight:700;text-align:right}
.price-tag{margin-top:8px;font-size:2.4rem;font-weight:800}
.price-tag small{font-size:.9rem;font-weight:600;color:var(--muted);margin-left:8px}
.poster{border:1px solid var(--line);background:var(--bg-soft);aspect-ratio:4/5;background-size:cover;background-position:center;
  background-image:url('../img/hero-light.jpg');
  background-image:-webkit-image-set(url('../img/hero-light.webp') type('image/webp'), url('../img/hero-light.jpg') type('image/jpeg'));
  background-image:image-set(url('../img/hero-light.webp') type('image/webp'), url('../img/hero-light.jpg') type('image/jpeg'))}
/* Session teaser (top page) — image first on mobile */
.event-teaser{display:grid;grid-template-columns:1fr .9fr;gap:48px;align-items:center}
.event-teaser .copy h3{font-size:clamp(1.4rem,3vw,2rem);font-weight:800;line-height:1.3;margin-bottom:14px}
.event-teaser .copy .meta{display:flex;flex-wrap:wrap;gap:8px 22px;margin:18px 0 8px;font-size:.85rem;letter-spacing:.06em;color:var(--muted)}
.event-teaser .copy .meta b{color:var(--ink);font-weight:700}
.event-teaser .actions{margin-top:28px}
@media(max-width:780px){
  .event-teaser{grid-template-columns:1fr;gap:28px}
  .event-teaser .poster{order:-1}
}

/* Timeline (event detail) — dot & line */
.timeline{position:relative;max-width:680px;margin:0;padding-left:34px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--red) 0%,var(--red-deep) 55%,var(--line) 100%)}
.timeline .t-item{position:relative;padding-bottom:34px}
.timeline .t-item:last-child{padding-bottom:0}
.timeline .t-item::before{content:"";position:absolute;left:-34px;top:3px;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:2px solid var(--red);box-shadow:0 0 0 4px rgba(212,23,42,.12);transition:.2s}
.timeline .t-item:hover::before{box-shadow:0 0 0 6px rgba(212,23,42,.2)}
.timeline .t-time{font-size:.78rem;letter-spacing:.14em;color:var(--red);font-weight:800}
.timeline .t-title{font-size:1.08rem;font-weight:800;margin:5px 0 5px}
.timeline .t-desc{font-size:.88rem;color:var(--muted);line-height:1.7}

/* About / statement */
.statement{font-size:clamp(1.3rem,3.4vw,2rem);font-weight:700;line-height:1.65;max-width:900px}
.statement em{color:var(--red);font-style:normal}

/* About — Mission / Vision */
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);
  border:1px solid var(--line);margin-top:64px}
@media(max-width:780px){.mv-grid{grid-template-columns:1fr}}
.mv-grid .mv{background:var(--bg);padding:34px 30px;position:relative}
.mv-grid .mv::before{content:"";position:absolute;left:0;top:34px;bottom:34px;width:2px;background:var(--red)}
.mv-grid .mv .label{display:block;font-size:.7rem;letter-spacing:.3em;text-transform:uppercase;color:var(--red);font-weight:800;margin-bottom:16px}
.mv-grid .mv .jp{display:block;font-size:.74rem;letter-spacing:.16em;color:var(--muted);margin-bottom:14px}
.mv-grid .mv p{font-size:1.06rem;line-height:1.9;color:var(--ink-soft)}

/* About — Values (editorial list) */
.values{margin-top:64px}
.values .vhead{font-size:.72rem;letter-spacing:.26em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.values .vlist{list-style:none;border-top:1px solid var(--line);margin-top:18px}
.values .vlist li{display:flex;align-items:baseline;gap:22px;padding:22px 4px;border-bottom:1px solid var(--line);transition:.2s}
.values .vlist li:hover{padding-left:14px;background:linear-gradient(90deg,var(--red-tint),transparent)}
.values .vlist .num{color:var(--red);font-weight:800;font-size:.82rem;letter-spacing:.1em;min-width:26px}
.values .vlist .term{font-size:clamp(1.15rem,2.6vw,1.5rem);font-weight:800;min-width:120px;flex-shrink:0}
.values .vlist .desc{color:var(--muted);font-size:.94rem;line-height:1.7}
@media(max-width:560px){
  .values .vlist li{flex-wrap:wrap;gap:6px 16px}
  .values .vlist .term{min-width:0}
  .values .vlist .desc{flex-basis:100%;padding-left:48px}
}

/* Reserve band */
.reserve{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center}
.reserve h2{font-size:clamp(2rem,6vw,3.4rem);font-weight:800;line-height:1.1}
.reserve p{margin:18px auto 30px;max-width:560px;color:var(--ink-soft)}
.note{margin-top:18px;font-size:.78rem;color:var(--muted)}
.remaining{font-size:1.05rem;letter-spacing:.06em;margin:4px 0 26px;color:var(--ink-soft)}
.rsvform{max-width:460px;margin:26px auto 0;text-align:left}
.rsvform .f{margin-bottom:14px}
.rsvform label{display:block;font-size:.8rem;color:var(--ink-soft);margin-bottom:6px;letter-spacing:.04em}
.rsvform .req{color:var(--red);font-size:.7rem;margin-left:5px}
.rsvform input{width:100%;background:#fff;border:1px solid var(--line-strong);color:var(--ink);padding:12px 13px;border-radius:4px;font-size:1rem;font-family:inherit}
.rsvform input:focus{outline:none;border-color:var(--red)}
.rsvform .agree{display:flex;gap:9px;align-items:flex-start;font-size:.85rem;color:var(--ink-soft);margin:8px 0 18px;text-align:left}
.rsvform .agree input{width:18px;height:18px;accent-color:var(--red);flex-shrink:0;margin-top:2px}
.rsvform .hint{font-size:.74rem;color:var(--muted);margin-top:6px}
.rsvform .formerr{background:#fdecec;border:1px solid var(--red);color:#8f1420;padding:11px 14px;border-radius:6px;margin-bottom:16px;font-size:.86rem}

/* Leader */
.leader{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:center}
@media(max-width:780px){.leader{grid-template-columns:1fr}}
.leader .ph{aspect-ratio:1;background:var(--bg-soft) center/cover no-repeat;border:1px solid var(--line);
  background-image:url('../img/yuya-shouzui.jpg');
  background-image:-webkit-image-set(url('../img/yuya-shouzui.webp') type('image/webp'), url('../img/yuya-shouzui.jpg') type('image/jpeg'));
  background-image:image-set(url('../img/yuya-shouzui.webp') type('image/webp'), url('../img/yuya-shouzui.jpg') type('image/jpeg'))}

/* Blog cards */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:820px){.posts{grid-template-columns:1fr}}
.card{border:1px solid var(--line);background:#fff;transition:.2s}
.card:hover{border-color:var(--red);box-shadow:var(--shadow)}
.card .body{padding:22px}
.card .date{font-size:.74rem;letter-spacing:.14em;color:var(--red);font-weight:700}
.card h3{margin:10px 0;font-size:1.15rem;font-weight:800;line-height:1.4}
.card p{font-size:.86rem;color:var(--muted)}

/* Footer */
footer{padding:72px 0 32px;border-top:1px solid var(--line);background:var(--bg-soft)}
.foot{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px;align-items:start}
@media(max-width:680px){.foot{grid-template-columns:1fr;gap:36px}}
.foot .brand-block img{height:48px;width:auto;margin-bottom:18px}
.foot .brand-block p{color:var(--muted);font-size:.86rem;line-height:1.9;max-width:340px}
.foot .brand-block .tag{color:var(--ink);font-weight:800;letter-spacing:.04em}
.foot .col h4{font-size:.7rem;letter-spacing:.2em;color:var(--muted);text-transform:uppercase;margin-bottom:18px}
.foot .col a{display:block;font-size:.92rem;margin-bottom:12px;color:var(--ink-soft);transition:.2s}
.foot .col a:hover{color:var(--red)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line)}
.foot-bottom .copy{font-size:.74rem;color:var(--muted);letter-spacing:.08em;margin:0}
.foot-bottom .social a{font-size:.78rem;color:var(--muted);letter-spacing:.1em}
.foot-bottom .social a:hover{color:var(--red)}

/* Article (blog post / legal) */
.article{max-width:760px;margin:0 auto;padding:140px 24px 100px}
.article h1{font-size:clamp(2rem,5vw,3rem);font-weight:800;line-height:1.2;margin-bottom:14px}
.article .date{color:var(--red);font-size:.8rem;letter-spacing:.14em;margin-bottom:40px;font-weight:700}
.article h2{font-size:1.4rem;font-weight:800;margin:40px 0 14px}
.article p{margin-bottom:18px;color:var(--ink-soft)}
.article ul,.article ol{margin:0 0 18px 1.2em;color:var(--ink-soft)}
.article li{margin-bottom:8px}
.article table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.92rem}
.article th,.article td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article th{color:var(--muted);font-weight:600;width:34%;white-space:nowrap;background:var(--bg-soft)}
.article .lead{font-size:1.08rem;color:var(--ink);font-weight:600}
.article .figure{border:1px solid var(--line);background:var(--bg-soft);aspect-ratio:16/9;background-size:cover;background-position:center;margin:28px 0}
.back{display:inline-block;margin-top:40px;color:var(--red);font-size:.85rem;letter-spacing:.1em;font-weight:700}

/* ============================================================
   Animations — 静かに、確実に。（Do One More.）
   ============================================================ */

/* Scroll-reveal */
.reveal{opacity:0;transform:translateY(24px);
  transition:opacity .8s cubic-bezier(.16,.84,.44,1),transform .8s cubic-bezier(.16,.84,.44,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

/* Hero — 順に立ち上がるフェードアップ */
.hero .rise{opacity:0;animation:riseUp .9s cubic-bezier(.16,.84,.44,1) forwards}
.hero .rise.r1{animation-delay:.10s}
.hero .rise.r2{animation-delay:.24s}
.hero .rise.r3{animation-delay:.38s}
.hero .rise.r4{animation-delay:.52s}
.hero .rise.r5{animation-delay:.64s}
@keyframes riseUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}

/* Button shine on hover */
.btn-red{position:relative;overflow:hidden}
.btn-red::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(120deg,transparent,rgba(255,255,255,.34),transparent);transform:skewX(-20deg)}
.btn-red:hover::after{animation:shine .8s ease}
@keyframes shine{to{left:140%}}

/* Card hover lift */
.card{transition:border-color .2s,box-shadow .3s,transform .3s cubic-bezier(.16,.84,.44,1)}
.card:hover{transform:translateY(-6px)}

.event-teaser .poster,.leader .ph{overflow:hidden}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero .hero-media{animation:none;transform:none}
  .hero .rise,.hero .sub,.hero .meta,.hero .actions{animation:none;opacity:1;transform:none}
  .btn-red:hover::after{animation:none}
  .card:hover{transform:none}
}