/* Workshop Hosting mockups — Matt vs Japan brand (Brand Guidelines v1)
   Polish pass per Reference/Designs: motion tokens, blur-in entrances,
   tactile presses, optical details. Flat surfaces per brand (§5.6). */

:root{
  --bg:#F1EAD7; --surface:#F7F2E4; --text:#1A1A1A; --heading:#21385A;
  --accent:#C2A04A; --accent-text:#9A7B2E;
  --border:#D8CFB9; --muted:#7A715C;
  --btn-bg:#21385A; --btn-bg-hover:#2A4368; --btn-text:#F1EAD7;
  --row-hover:rgba(33,56,90,.045);
  --ring:rgba(154,123,46,.22);

  /* motion tokens — the house set; defaults are banned */
  --ease-smooth:cubic-bezier(0.22,1,0.36,1);
  --ease-out:cubic-bezier(0.17,1,0.32,1);
  --dur-fast:150ms; --dur-normal:220ms; --dur-slow:320ms;
}
[data-theme="dark"]{
  --bg:#141A26; --surface:#1E2A3D; --text:#F1EAD7; --heading:#F1EAD7;
  --accent:#C2A04A; --accent-text:#C2A04A;
  --border:#2C3A52; --muted:rgba(241,234,215,.55);
  --btn-bg:#F1EAD7; --btn-bg-hover:#FFFBEC; --btn-text:#141A26;
  --row-hover:rgba(241,234,215,.05);
  --ring:rgba(194,160,74,.28);
}
*{box-sizing:border-box}
html{
  background:var(--bg);
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}
body{
  margin:0; min-height:100vh; color:var(--text); background:transparent;
  font:400 15px/1.7 "Zen Kaku Gothic New",sans-serif;
}
h1,h2{text-wrap:balance}
p{text-wrap:pretty}
::selection{background:#21385A; color:#F1EAD7}
[data-theme="dark"] ::selection{background:#C2A04A; color:#141A26}

/* washi grain — light mode paper feel */
body::before{
  content:""; position:fixed; inset:0; z-index:-2; pointer-events:none;
  background:url(washi-grain.jpg); background-size:512px;
  mix-blend-mode:multiply; opacity:.4;
}
[data-theme="dark"] body::before{display:none}

/* ink wash — auth pages */
.wash{position:fixed; left:0; right:0; bottom:0; height:52vh; z-index:-1; pointer-events:none;
  background:url(wash-light-bottom.jpg) center bottom/cover no-repeat;
  -webkit-mask-image:linear-gradient(to bottom,transparent,#000 55%);
  mask-image:linear-gradient(to bottom,transparent,#000 55%)}
[data-theme="dark"] .wash{background-image:url(wash-dark-bottom.jpg)}

a{color:var(--heading); text-decoration:none}
:focus-visible{outline:2px solid var(--accent); outline-offset:2px; border-radius:4px}
.container{max-width:720px; margin:0 auto; padding:0 22px}

/* ---------- header ---------- */
header.site{padding:20px 0 16px}
header.site .container{display:flex; align-items:center; gap:14px}
.lockup{display:flex; align-items:center; gap:12px; min-width:0}
.mark{display:block; width:38px; height:38px; flex:none;
  background:url(mvj-do-mark.svg) center/contain no-repeat}
[data-theme="dark"] .mark{background-image:url(mvj-do-mark-dark.svg)}
.lockup .names{display:flex; flex-direction:column; line-height:1.25}
.lockup .kicker{font:600 10px/1 "Zen Kaku Gothic New",sans-serif; letter-spacing:.18em;
  text-transform:uppercase; color:var(--accent-text); margin-bottom:3px}
.lockup .name{font:600 17px/1.3 "Newsreader",serif; color:var(--heading)}
header.site .right{margin-left:auto; display:flex; align-items:center; gap:14px}
.signout{font-size:13px; color:var(--muted); transition:color var(--dur-fast) var(--ease-smooth)}
.signout:hover{color:var(--heading)}

.theme-toggle{
  width:40px; height:40px; display:grid; place-items:center; cursor:pointer;
  border:1px solid var(--border); border-radius:999px; background:var(--surface);
  color:var(--heading); font:16px/1 "Zen Kaku Gothic New",sans-serif; padding:0;
  transition:border-color var(--dur-fast) var(--ease-smooth),
             transform var(--dur-fast) var(--ease-smooth);
}
.theme-toggle:hover{border-color:var(--accent)}
.theme-toggle:active{transform:scale(.94)}

/* ---------- buttons (tactile, interruptible) ---------- */
.btn{
  display:inline-block; border:0; cursor:pointer; border-radius:10px;
  background:var(--btn-bg); color:var(--btn-text);
  font:500 15px/1 "Zen Kaku Gothic New",sans-serif; padding:13px 22px;
  transition:background-color var(--dur-fast) var(--ease-smooth),
             transform var(--dur-fast) var(--ease-smooth);
}
.btn:hover{background:var(--btn-bg-hover)}
.btn:active{transform:scale(.97)}
.btn .go-arrow{display:inline-block; margin-left:8px;
  transition:transform var(--dur-normal) var(--ease-smooth)}
.btn:hover .go-arrow{transform:translateX(3px)}

/* ---------- index page ---------- */
.hero{padding:34px 0 8px}
.kicker-line{font:600 12px/1 "Zen Kaku Gothic New",sans-serif; letter-spacing:.15em;
  text-transform:uppercase; color:var(--accent-text); margin:0 0 14px}
h1{font:600 40px/1.1 "Newsreader",serif; color:var(--heading); margin:0 0 10px}
.hero p.sub{margin:0; color:var(--muted); max-width:52ch}

.latest{display:flex; align-items:center; gap:18px; margin:30px 0 8px;
  background:var(--surface); border:1px solid var(--border); border-radius:14px;
  padding:22px 24px; transition:border-color var(--dur-fast) var(--ease-smooth)}
a.latest:hover{border-color:var(--accent)}
a.latest:hover .btn{background:var(--btn-bg-hover)}
a.latest:hover .go-arrow{transform:translateX(3px)}
.latest .lkicker{font:600 11px/1 "Zen Kaku Gothic New",sans-serif; letter-spacing:.15em;
  text-transform:uppercase; color:var(--accent-text); margin-bottom:7px}
.latest .ltitle{font:600 23px/1.2 "Newsreader",serif; color:var(--heading); text-wrap:balance}
.latest .meta{color:var(--muted); font-size:13px; margin-top:4px; font-variant-numeric:tabular-nums}
.latest .go{margin-left:auto; flex:none}

section.year{margin-top:56px}
.year-head{display:flex; align-items:baseline; gap:12px;
  border-bottom:1px solid var(--border); padding-bottom:10px}
.year-head h2{font:600 28px/1 "Newsreader",serif; color:var(--heading); margin:0}
.quarter{margin-top:44px}
.year-head + .quarter{margin-top:24px}
.quarter .qlabel{font:600 11px/1 "Zen Kaku Gothic New",sans-serif; letter-spacing:.17em;
  text-transform:uppercase; color:var(--muted); margin:0 0 8px}
.rows{border-top:1px solid var(--border)}
a.row{display:flex; align-items:baseline; gap:14px; padding:13px 6px;
  border-bottom:1px solid var(--border); border-radius:8px;
  transition:background-color var(--dur-fast) var(--ease-smooth)}
a.row .rdate{flex:none; width:58px; color:var(--muted); font-size:13px;
  font-variant-numeric:tabular-nums; letter-spacing:.02em}
a.row .rtitle{font:500 16.5px/1.35 "Newsreader",serif; color:var(--heading); text-wrap:pretty}
a.row .rtitle.untitled{color:var(--muted); font-weight:400}
a.row .meta{margin-left:auto; flex:none; color:var(--muted); font-size:12px; font-variant-numeric:tabular-nums}
a.row .arrow{flex:none; color:var(--border); font-family:"Zen Kaku Gothic New",sans-serif;
  transition:color var(--dur-fast) var(--ease-smooth),
             transform var(--dur-normal) var(--ease-smooth)}
a.row:hover{background:var(--row-hover)}
a.row:hover .arrow{color:var(--accent); transform:translateX(3px)}
a.row:active{background:var(--row-hover)}

footer.site{margin-top:56px; position:relative; padding:34px 0 46px;
  border-top:1px solid var(--border)}
footer.site .container{display:flex; gap:14px; align-items:center;
  color:var(--muted); font-size:12.5px; position:relative; z-index:1}
footer.site .container .right{margin-left:auto; text-align:right}
[data-theme="dark"] footer.site::before{
  content:""; position:absolute; inset:0; z-index:0; pointer-events:none;
  background:url(seigaiha-tonal.jpg); background-size:340px; opacity:.55;
  -webkit-mask-image:linear-gradient(to bottom,transparent,#000 85%);
  mask-image:linear-gradient(to bottom,transparent,#000 85%);
}

/* staggered entrance — index hero focuses into place (blur clears) */
@media (prefers-reduced-motion: no-preference){
  .enter{opacity:0; animation:enter var(--dur-slow) var(--ease-smooth) both}
  .enter.d1{animation-delay:60ms}
  .enter.d2{animation-delay:120ms}
  .enter.d3{animation-delay:190ms}
  /* a cross-doc view transition owns nav motion — entrance is cold-load only */
  .vt-nav .enter{animation:none; opacity:1}
  @keyframes enter{
    from{opacity:0; transform:translateY(8px); filter:blur(2px)}
    to{opacity:1; transform:none; filter:none}
  }
}

/* ---------- auth pages ---------- */
main.center{min-height:calc(100vh - 180px); min-height:calc(100svh - 180px);
  display:grid; place-items:start center; padding:7vh 22px 40px}
.card{width:100%; max-width:410px; background:var(--surface);
  border:1px solid var(--border); border-radius:16px; padding:38px 34px 34px;
  text-align:center; overflow:clip}
.card .mark{width:72px; height:72px; margin:0 auto 18px}
.card .kicker-line{margin-bottom:10px}
.card h1{font-size:26px; margin:0 0 12px}
.card p{margin:0 0 8px; color:var(--text)}
.card p.note{color:var(--muted); font-size:13px; line-height:1.6; margin-top:14px}
.card form{margin-top:20px; display:flex; flex-direction:column; gap:12px}
.card input[type=email]{
  width:100%; padding:13px 14px; border-radius:10px; font:400 16px/1 "Zen Kaku Gothic New",sans-serif;
  border:1px solid var(--border); background:var(--bg); color:var(--text); outline:none;
  transition:border-color var(--dur-fast) var(--ease-smooth),
             box-shadow var(--dur-fast) var(--ease-smooth);
}
.card input[type=email]:hover{border-color:var(--accent)}
.card input[type=email]:focus{border-color:var(--accent); box-shadow:0 0 0 3px var(--ring)}
.card .btn{width:100%}
.card a.btn{margin-top:20px}
.card .alt{font-size:13px; color:var(--muted); margin-top:16px; display:inline-block;
  padding:8px 6px; margin-bottom:-8px; /* invisible hit-area extension */
  transition:color var(--dur-fast) var(--ease-smooth)}
.card .alt:hover{color:var(--heading)}
.card .email-echo{font-weight:500; color:var(--heading); overflow-wrap:anywhere}

/* in-document auth-card state morph (transitions = interruptible) */
.card.animating{transition:height .42s var(--ease-smooth)}
.card-inner{transition:opacity var(--dur-fast) var(--ease-smooth),
            transform var(--dur-fast) var(--ease-smooth),
            filter var(--dur-fast) var(--ease-smooth)}
.card-inner.out{opacity:0; transform:translateY(-6px); filter:blur(2px)}
.card-inner.in{animation:inner-in var(--dur-slow) var(--ease-out) both}
@keyframes inner-in{
  from{opacity:0; transform:translateY(8px); filter:blur(2px)}
  to{opacity:1; transform:none; filter:none}
}

/* ---------- page transitions (cross-document) ---------- */
/* Pages share their chrome (background/header/footer), so ANY blend or gap
   reads as a flash — cross-fade double-exposes overlapping text, sequential
   motion blanks the content area. The transition's whole job here is a held
   frame + instant, tear-free swap: nothing animates, nothing can flash.
   Entrance (.enter) stays cold-load-only via the vt-nav hook in ui/head. */
@view-transition { navigation: auto }
::view-transition-old(root){animation:none; opacity:0}
::view-transition-new(root){animation:none; opacity:1}

/* fallback for browsers without cross-doc transitions */
.no-vt main{animation:page-in var(--dur-slow) var(--ease-smooth) both}
@keyframes page-in{from{opacity:0; transform:translateY(10px); filter:blur(2px)}}
.leaving main{animation:page-out .16s ease-in both}
@keyframes page-out{to{opacity:0; transform:translateY(-8px); filter:blur(2px)}}

/* ---------- session page ---------- */
.crumb{display:inline-block; font-size:13px; color:var(--muted); margin:6px 0 0;
  transition:color var(--dur-fast) var(--ease-smooth)}
.crumb:hover{color:var(--heading)}
.session-hero{padding:14px 0 4px}
.session-hero h1{font-size:34px}

.video-slot{aspect-ratio:16/9; margin:20px 0 14px}
.video-wrap{position:relative; width:100%; height:100%; border-radius:14px; overflow:hidden;
  border:1px solid var(--border); background:#0E1420}
.video-wrap iframe{position:absolute; inset:0; width:100%; height:100%; border:0}
.video-facade{position:absolute; inset:0; width:100%; display:flex; flex-direction:column;
  align-items:center; justify-content:center; gap:12px; cursor:pointer; border:0; padding:0;
  background:
    radial-gradient(ellipse 420px 280px at 50% 55%, rgba(10,14,22,.55), transparent 70%),
    linear-gradient(rgba(10,14,22,.45), rgba(10,14,22,.62)),
    var(--poster-image, none) center/cover no-repeat, #0E1420;
  color:#F1EAD7; font:400 14px/1.4 "Zen Kaku Gothic New",sans-serif;
  text-shadow:0 1px 8px rgba(10,14,22,.8)}
.video-facade .play{width:64px; height:64px; border-radius:50%; display:grid; place-items:center;
  background:#F1EAD7; color:#141A26; font-size:20px; padding-left:4px;
  transition:transform var(--dur-normal) var(--ease-smooth)}
.video-facade:hover .play{transform:scale(1.08)}
.video-facade .vf-label{font:600 17px/1.2 "Newsreader",serif}
.video-facade .vf-meta{font-size:12px; color:rgba(241,234,215,.85); font-variant-numeric:tabular-nums}
.dock-close{display:none; position:absolute; top:6px; right:6px; z-index:2; width:28px; height:28px;
  border:0; border-radius:50%; cursor:pointer; background:rgba(20,26,38,.75); color:#F1EAD7;
  font:16px/1 system-ui,sans-serif; place-items:center}
.dock-close::after{content:""; position:absolute; inset:-8px} /* 44px hit target */

/* docked mini-player — the slot keeps its height so the page never jumps */
.video-wrap.docked{position:fixed; right:16px; bottom:16px; z-index:40; height:auto;
  width:min(320px, calc(100vw - 32px)); aspect-ratio:16/9;
  box-shadow:0 12px 40px rgba(10,14,22,.4);
  animation:dock-in var(--dur-normal) var(--ease-out)}
@media (min-width:1500px){.video-wrap.docked{width:380px}}
@keyframes dock-in{from{opacity:0; transform:translateY(12px); filter:blur(2px)}}
.video-wrap.docked .dock-close{display:grid}
.video-slot.has-docked{border:1px dashed var(--border); border-radius:14px}

.deck-card{display:flex; align-items:center; gap:18px; margin:0 0 8px;
  background:var(--surface); border:1px solid var(--border); border-radius:14px;
  padding:20px 24px; transition:border-color var(--dur-fast) var(--ease-smooth)}
.deck-card .lkicker{font:600 11px/1 "Zen Kaku Gothic New",sans-serif; letter-spacing:.15em;
  text-transform:uppercase; color:var(--accent-text); margin-bottom:7px}
.deck-card .ltitle{font:600 21px/1.2 "Newsreader",serif; color:var(--heading); text-wrap:balance}
.deck-card .meta{color:var(--muted); font-size:13px; margin-top:4px}
.deck-card .go{margin-left:auto; flex:none}
.deck-card:hover{border-color:var(--accent)}
.deck-card:hover .btn{background:var(--btn-bg-hover)}
.deck-card:hover .go-arrow{transform:translateX(3px)}

.summary{margin-top:48px}
.summary-head{display:flex; align-items:baseline; gap:14px; flex-wrap:wrap;
  border-bottom:1px solid var(--border); padding-bottom:10px}
.summary-head h2{font:600 28px/1 "Newsreader",serif; color:var(--heading); margin:0}
.summary h3{font:600 21px/1.25 "Newsreader",serif; color:var(--heading); margin:30px 0 10px;
  scroll-margin-top:16px}
.summary h3 .nw{white-space:nowrap}
.tstamp{display:inline-block; vertical-align:middle; margin-left:10px;
  border:1px solid var(--border); border-radius:8px; background:var(--surface); padding:4px 10px;
  font:500 12px/1 "Zen Kaku Gothic New",sans-serif; color:var(--heading);
  font-variant-numeric:tabular-nums; letter-spacing:.03em}

.toc{display:grid; grid-template-columns:1fr 1fr; gap:1px 32px; margin:16px 0 18px}
.toc a{display:flex; align-items:baseline; gap:12px; min-width:0; padding:6px 6px;
  border-radius:8px; font-size:14px; color:var(--text);
  transition:background-color var(--dur-fast) var(--ease-smooth)}
.toc a:hover{background:var(--row-hover)}
.toc .toc-t{overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.toc .toc-time{margin-left:auto; flex:none; color:var(--muted); font-size:12px;
  font-variant-numeric:tabular-nums}
.summary ul{margin:0; padding-left:22px}
.summary li{margin:7px 0; line-height:1.65}
.summary li::marker{color:var(--accent-text)}


@media (max-width:560px){
  h1{font-size:32px}
  .session-hero h1{font-size:27px}
  .latest{flex-wrap:wrap}
  .latest .go{margin-left:0; width:100%}
  .latest .go .btn{width:100%}
  .deck-card{flex-wrap:wrap; padding:18px 20px}
  .deck-card .go{margin-left:0; width:100%}
  .deck-card .go .btn{width:100%; text-align:center}
  .toc{grid-template-columns:1fr}
  .video-wrap.docked{right:12px; bottom:64px}
  a.row .meta{display:none}
  main.center{padding-top:4vh}
  .card{padding:30px 22px 26px}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important; transition-duration:.01ms !important}
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*){animation:none !important}
  .card.animating{transition:none}
}