/* THE SENSEI — sumi / washi / hinoki, the red belongs to the seal */
:root{
  --sumi:#17181A; --sumi-2:#22242a; --washi:#F1EAD9; --washi-2:#E7DEC7;
  --hinoki:#B98B57; --hinoki-2:#9a7245; --seal:#A63B22;
  --fd:"Shippori Mincho",Georgia,serif; --ft:"Zen Kaku Gothic New",system-ui,sans-serif;
  --bg:var(--sumi); --fg:var(--washi); --muted:rgba(241,234,217,.55);
  --ease:cubic-bezier(.22,.9,.24,1); --t:.45s;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--fg);font-family:var(--ft);overflow-x:hidden;line-height:1.6}
::selection{background:var(--hinoki);color:var(--sumi)}
::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--sumi)}
::-webkit-scrollbar-thumb{background:var(--hinoki-2);border-radius:5px}
a{color:inherit}
img{max-width:100%}

/* living background: washi grain + breathing light */
#washi{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5}
.brushline{position:fixed;top:0;bottom:0;left:calc(50% - 640px);width:1px;z-index:1;pointer-events:none}
.brushline i{display:block;width:1px;height:0;background:linear-gradient(180deg,transparent,rgba(185,139,87,.5) 12%,rgba(185,139,87,.5) 88%,transparent)}
@media(max-width:1360px){.brushline{left:24px}}

/* header */
.top{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:1.1rem 2rem;mix-blend-mode:difference}
.wordmark-sm{font-family:var(--fd);font-weight:800;font-size:1.05rem;letter-spacing:.02em}
.wordmark-sm em{font-style:normal;font-size:.8em;opacity:.6;margin-left:.4rem}
.top nav{display:flex;gap:1.6rem}
.top nav a{font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;text-decoration:none;opacity:.75;transition:opacity var(--t)}
.top nav a:hover{opacity:1}
.status-line{font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;opacity:.6}
@media(max-width:900px){.top nav,.status-line{display:none}}

main{position:relative;z-index:2}
section{position:relative}

/* seal (the only red) */
.sl-frame{fill:var(--seal)}
.sl-circle{fill:none;stroke:var(--washi);stroke-width:5}
.sl-left{transform:translateX(-6px)}
.sl-right{transform:translateX(6px);opacity:.55}
.sl-cut{stroke:var(--washi);stroke-width:5;stroke-linecap:round}

/* A · HERO */
.hero{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:2rem;
  padding:8rem 6vw 4rem;max-width:1440px;margin:0 auto}
.stage{perspective:1200px;display:flex;justify-content:center}
.kiribako{position:relative;width:min(30vw,360px);aspect-ratio:1/1.15;transform-style:preserve-3d}
.kb-body{position:absolute;inset:0;background:
  linear-gradient(94deg,#caa06b 0%,#b98b57 34%,#a87c49 67%,#c19a64 100%);
  border-radius:6px;box-shadow:0 40px 80px rgba(0,0,0,.55),inset 0 0 0 1px rgba(241,234,217,.14);
  display:flex;align-items:center;justify-content:center}
.kb-body::before{content:"";position:absolute;inset:0;border-radius:6px;opacity:.35;background:
  repeating-linear-gradient(92deg,transparent 0 7px,rgba(90,60,30,.13) 7px 8px,transparent 8px 21px)}
.kb-lid{position:absolute;inset:-3% -4% auto -4%;height:22%;z-index:6;border-radius:6px;
  background:linear-gradient(94deg,#d2ab77 0%,#bf placeholder 0,#bf9260 40%,#ad8150 100%);
  background:linear-gradient(94deg,#d2ab77 0%,#bf9260 40%,#ad8150 100%);
  box-shadow:0 14px 30px rgba(0,0,0,.45),inset 0 0 0 1px rgba(241,234,217,.18);
  display:flex;align-items:center;justify-content:center}
.kb-brand{font-family:var(--fd);font-weight:800;font-size:1.6rem;color:rgba(23,24,26,.72)}
.kb-piece{position:absolute;z-index:3;opacity:0}
.kb-card{left:50%;top:44%;width:52%;aspect-ratio:1;transform:translate(-50%,-50%);
  background:var(--washi);border-radius:4px;box-shadow:0 18px 36px rgba(0,0,0,.4);
  display:flex;align-items:center;justify-content:center}
.kb-card .seal{width:62%}
.kb-menu{left:8%;top:58%;width:40%;height:34%;background:var(--washi-2);border-radius:3px;
  box-shadow:0 12px 26px rgba(0,0,0,.35);padding:8% 7%;color:var(--sumi)}
.kb-menu i{font-style:normal;font-family:var(--fd);font-weight:800;font-size:1.1rem;display:block}
.kb-menu span{font-size:.55rem;letter-spacing:.2em;text-transform:uppercase;opacity:.7}
.kb-sleeve{right:6%;top:30%;width:16%;height:52%;background:linear-gradient(180deg,#1d1f24,#17181a);
  border-radius:3px;box-shadow:0 12px 26px rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center}
.kb-sleeve span{writing-mode:vertical-rl;font-size:.5rem;letter-spacing:.34em;color:var(--washi);opacity:.85}
.kb-book{left:16%;top:20%;width:34%;height:24%;background:var(--sumi-2);border-radius:3px;color:var(--washi);
  box-shadow:0 12px 26px rgba(0,0,0,.4);display:flex;align-items:flex-end;padding:5%}
.kb-book span{font-size:.55rem;letter-spacing:.22em;text-transform:uppercase;opacity:.75}
.hero-copy{max-width:520px}
.kicker{font-size:.7rem;letter-spacing:.3em;text-transform:uppercase;color:var(--hinoki);margin-bottom:1.6rem}
.title{font-family:var(--fd);font-weight:800;font-size:clamp(3.4rem,8vw,7rem);line-height:.98;letter-spacing:-.01em}
.title .t-line{display:block;overflow:hidden}
.one-line{font-size:1.05rem;letter-spacing:.06em;margin:1.6rem 0 2.4rem;color:var(--muted)}
.cta{display:inline-block;font-size:.72rem;letter-spacing:.26em;text-transform:uppercase;text-decoration:none;
  border:1px solid var(--hinoki);padding:1rem 2.2rem;color:var(--washi);transition:background var(--t),color var(--t)}
.cta:hover{background:var(--hinoki);color:var(--sumi)}
.scroll-cue{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);
  font-size:.62rem;letter-spacing:.4em;text-transform:uppercase;color:var(--muted)}
@media(max-width:900px){.hero{grid-template-columns:1fr;padding-top:7rem;text-align:center}
  .kiribako{width:min(64vw,300px)}.hero-copy{margin:0 auto}}

/* B · THE LESSON — charged ma */
.lesson{min-height:92vh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:16vh 8vw;background:var(--washi);color:var(--sumi)}
.seal-echo{width:52px;margin-bottom:3rem}
.ma-line{font-family:var(--fd);font-weight:800;font-size:clamp(1.7rem,3.6vw,3rem);line-height:1.3;max-width:21ch}
.ma-sub{max-width:52ch;margin-top:2.6rem;font-size:.95rem;color:rgba(23,24,26,.62)}
.margin-note{position:absolute;right:3vw;bottom:3rem;writing-mode:vertical-rl;
  font-size:.6rem;letter-spacing:.3em;text-transform:uppercase;color:rgba(23,24,26,.35)}

/* section furniture */
.sec-head{max-width:1200px;margin:0 auto 4rem;position:relative}
.sec-kanji{position:absolute;right:0;top:-1.4rem;font-family:var(--fd);font-weight:800;
  font-size:clamp(4rem,9vw,7.5rem);opacity:.06;line-height:1;pointer-events:none}
.sec-head h2{font-family:var(--fd);font-weight:800;font-size:clamp(2rem,4.4vw,3.4rem)}
.sec-sub{color:var(--muted);max-width:46ch;margin-top:.9rem;font-size:.92rem}

/* C · THE COUNTER */
.counter{padding:16vh 6vw;max-width:1200px;margin:0 auto}
.lessons{list-style:none}
.lessons li{display:grid;grid-template-columns:5rem 1fr auto;align-items:baseline;gap:1.6rem;
  padding:1.35rem 0;border-top:1px solid rgba(241,234,217,.14);transition:padding var(--t)}
.lessons li:last-child{border-bottom:1px solid rgba(241,234,217,.14)}
.lessons li:hover{padding-left:.8rem}
.ln{font-family:var(--fd);font-weight:800;color:var(--hinoki);font-size:1rem}
.lt{font-family:var(--fd);font-weight:600;font-size:clamp(1.1rem,2vw,1.55rem)}
.ld{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);text-align:right}
.counter-foot{margin-top:2.6rem;font-size:.82rem;color:var(--muted);max-width:60ch}
@media(max-width:700px){.lessons li{grid-template-columns:3rem 1fr}.ld{grid-column:2;text-align:left}}

/* D · ROOMS */
.rooms{display:grid;grid-template-columns:1fr 1fr 1fr;min-height:74vh}
.room{padding:14vh 3vw 12vh;display:flex;flex-direction:column;justify-content:flex-end;gap:.6rem;cursor:pointer}
.room h3{font-family:var(--fd);font-weight:800;font-size:clamp(1.8rem,3.4vw,3rem)}
.room-hex{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;opacity:.72}
.room-note{font-size:.85rem;max-width:30ch;opacity:.62}
.room-sumi{background:var(--sumi);color:var(--washi);box-shadow:inset 0 0 0 1px rgba(241,234,217,.08)}
.room-washi{background:var(--washi);color:var(--sumi)}
.room-hinoki{background:linear-gradient(160deg,#c59a63,#b98b57 55%,#a87c49);color:var(--sumi)}
.room-rule{grid-column:1/-1;text-align:center;padding:3.4rem 8vw;background:var(--washi);color:var(--sumi);
  font-family:var(--fd);font-weight:600;font-size:clamp(1rem,1.8vw,1.4rem)}
@media(max-width:900px){.rooms{grid-template-columns:1fr}}

/* E · CARRIED HOME */
.carried{padding:16vh 6vw;max-width:1300px;margin:0 auto}
.shelf{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;align-items:end}
.vessel{position:relative}
.v-img{position:relative;overflow:hidden;border-radius:4px;background:var(--sumi-2)}
.v-img img{display:block;width:100%;height:auto;filter:saturate(.92) contrast(1.03);transition:transform .8s var(--ease)}
.vessel:hover .v-img img{transform:scale(1.045)}
.v-seal{position:absolute;width:14%;left:50%;top:46%;transform:translate(-50%,-50%)}
.v-seal-sm{width:10%;top:55%}
.vessel figcaption{margin-top:1rem;font-size:.78rem;color:var(--muted);line-height:1.5}
.vessel figcaption span{font-family:var(--fd);font-weight:800;color:var(--hinoki);margin-right:.5rem}
.v-sleeve{transform:translateY(1.4rem)}.v-cup{transform:translateY(2.2rem)}
@media(max-width:1000px){.shelf{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.shelf{grid-template-columns:1fr}.v-sleeve,.v-cup{transform:none}}

/* F · RESERVE */
.reserve{min-height:80vh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:16vh 8vw;background:var(--washi);color:var(--sumi)}
.reserve .ma-line{max-width:24ch}
.reserve-sub{max-width:48ch;margin:2rem 0 3rem;color:rgba(23,24,26,.62);font-size:.95rem}
.cta-light{border-color:var(--sumi);color:var(--sumi)}
.cta-light:hover{background:var(--sumi);color:var(--washi)}
.reserve-fine{margin-top:3rem;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(23,24,26,.42)}

/* G · KIT */
.kit{padding:16vh 6vw 12vh;max-width:1200px;margin:0 auto}
.kit-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.kit-label{display:block;font-size:.66rem;letter-spacing:.26em;text-transform:uppercase;color:var(--hinoki);margin-bottom:1.1rem}
.swatches{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.swatch{border:0;border-radius:4px;padding:1.1rem;text-align:left;cursor:pointer;font-family:var(--ft);
  display:flex;flex-direction:column;gap:.25rem;transition:transform var(--t)}
.swatch:hover{transform:translateY(-3px)}
.swatch b{font-family:var(--fd);font-size:1rem}
.swatch span,.swatch em{font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;font-style:normal;opacity:.7}
.sw-sumi{background:var(--sumi);color:var(--washi);box-shadow:inset 0 0 0 1px rgba(241,234,217,.2)}
.sw-washi{background:var(--washi);color:var(--sumi)}
.sw-hinoki{background:var(--hinoki);color:var(--sumi)}
.sw-seal{background:var(--seal);color:var(--washi)}
.type-input,.type-size{width:100%;background:transparent;border:1px solid rgba(241,234,217,.25);color:var(--washi);
  padding:.7rem 1rem;font-family:var(--ft);font-size:.9rem;margin-bottom:.8rem}
.type-size{padding:0;accent-color:var(--hinoki);border:0}
.type-spec{font-family:var(--fd);font-weight:800;font-size:54px;line-height:1.1;min-height:2.4em;overflow-wrap:anywhere}
.lockups{display:flex;flex-direction:column;gap:.8rem}
.lk{display:inline-flex;align-items:center;gap:.9rem;font-family:var(--fd);font-weight:800;font-size:1.2rem;
  padding:1rem 1.4rem;border-radius:4px;width:fit-content}
.lk-light{background:var(--washi);color:var(--sumi)}
.lk-dark{background:var(--sumi);color:var(--washi);box-shadow:inset 0 0 0 1px rgba(241,234,217,.2)}
/* HERO DOWNLOAD — the brand book flagship. Quiet, but unmistakable: a lacquer
   sheen crosses it slowly; the seal carries the only red on the page. */
.dl-hero{display:flex;align-items:center;gap:1.2rem;width:100%;margin-bottom:1rem;
  background:linear-gradient(160deg,#c59a63,#b98b57 55%,#a87c49);color:var(--sumi);
  text-decoration:none;padding:1.2rem 1.5rem;border-radius:4px;position:relative;overflow:hidden;
  transition:transform var(--t) var(--ease),box-shadow var(--t)}
.dl-hero:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.dl-hero .seal{width:46px;height:46px;flex:none}
.dh-text{flex:1;display:flex;flex-direction:column;gap:.2rem}
.dh-text b{font-family:var(--fd);font-weight:800;font-size:1.25rem}
.dh-text i{font-style:normal;font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;opacity:.7}
.dh-get{font-family:var(--fw, var(--ft));font-size:.68rem;letter-spacing:.26em;text-transform:uppercase;
  border:1px solid var(--sumi);padding:.65rem 1.2rem}
.dl-hero::after{content:"";position:absolute;top:0;bottom:0;left:-70%;width:40%;
  background:linear-gradient(105deg,transparent 0%,rgba(241,234,217,.20) 45%,rgba(241,234,217,.38) 50%,rgba(241,234,217,.20) 55%,transparent 100%);
  transform:skewX(-16deg);animation:dh-sheen 4.2s var(--ease) infinite}
@keyframes dh-sheen{0%{left:-70%}55%{left:130%}100%{left:130%}}
@media (prefers-reduced-motion: reduce){.dl-hero::after{animation:none;display:none}}

.downloads{display:flex;flex-wrap:wrap;gap:.6rem}
.dl{font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;text-decoration:none;
  border:1px solid rgba(241,234,217,.3);padding:.55rem 1rem;border-radius:2px;transition:border-color var(--t),color var(--t)}
.dl:hover{border-color:var(--hinoki);color:var(--hinoki)}
.dl-book{border-color:var(--hinoki);color:var(--hinoki)}
.kit-note{margin-top:2.4rem;font-size:.78rem;color:var(--muted)}
@media(max-width:900px){.kit-grid{grid-template-columns:1fr}}

/* footer */
.foot{display:flex;justify-content:space-between;padding:2.4rem 2rem;border-top:1px solid rgba(241,234,217,.12);
  font-size:.68rem;letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}

/* toast */
.toast{position:fixed;bottom:2rem;left:50%;transform:translate(-50%,20px);opacity:0;z-index:90;
  background:var(--washi);color:var(--sumi);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;
  padding:.8rem 1.4rem;border-radius:2px;pointer-events:none;transition:opacity .3s,transform .3s}
.toast.on{opacity:1;transform:translate(-50%,0)}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}