/* Friendship × INAX — UI kit
   Layout: architectural grid, generous whitespace, neutral stone surfaces; Friendship red reserved for conversion actions (per brief §14). */
:root{
  color-scheme:light;
  --red:#B3343A; --red-d:#962A30; --slate:#3F5558; --ink:#1E2A2C; --stone:#6C7472;
  --bg:#F3F1EC; --sand:#E8E4DC; --texture:#BFB7AC; --line:#DCD7CD; --white:#FFFFFF;
  --sans:"Be Vietnam Pro","Segoe UI",Arial,sans-serif;
  --mono:"IBM Plex Mono","Courier New",monospace;
  --max:1320px; --hh:76px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hh) + 12px)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65;font-weight:400;-webkit-font-smoothing:antialiased}
main{overflow-x:clip}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.12;text-wrap:balance}
p{margin:0}
button{font:inherit}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
@media (min-width:900px){.wrap{padding-left:max(40px,env(safe-area-inset-left,0px));padding-right:max(40px,env(safe-area-inset-right,0px))}}
.eyebrow{font-family:var(--mono);font-size:11.5px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--red)}
.eyebrow.mute{color:var(--stone)}
.lead{font-size:17px;color:var(--stone);max-width:36em}
.code{font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;color:var(--stone)}
.sec{padding-block:clamp(72px,9vw,128px)}
.sec-head{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:24px 64px;align-items:end;margin-bottom:clamp(36px,4vw,56px)}
.sec-head h2{font-size:clamp(30px,3.6vw,48px);margin-top:14px}
.sec-head .side{display:flex;flex-direction:column;gap:18px;align-items:flex-start}
@media (max-width:860px){.sec-head{grid-template-columns:1fr}}
.num{font-family:var(--mono);font-size:12px;color:var(--stone);letter-spacing:.08em}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:12px;height:52px;padding:0 24px;border:1px solid transparent;border-radius:2px;font-weight:600;font-size:14.5px;letter-spacing:.01em;text-decoration:none;cursor:pointer;transition:background .25s,color .25s,border-color .25s,transform .25s}
.btn svg{width:18px;height:18px;transition:transform .3s}
.btn:hover svg{transform:translateX(4px)}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-d)}
.btn-line{border-color:currentColor;background:transparent;color:var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{background:#fff;color:var(--ink)}
.link{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14px;text-decoration:none;color:var(--ink);border-bottom:1px solid var(--ink);padding-bottom:3px;white-space:nowrap}
.link svg{width:16px;height:16px;transition:transform .3s}
.link:hover svg{transform:translateX(4px)}

/* header */
.hdr{position:fixed;inset:0 0 auto;z-index:50;padding-top:env(safe-area-inset-top,0px);transition:background .35s,box-shadow .35s,color .35s;color:#fff}
.hdr .bar{height:var(--hh);display:flex;align-items:center;gap:28px}
.brand{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-decoration:none;flex:none}
.brand img{height:26px;width:auto}
.brand span{font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;opacity:.85}
.brand .on-light{display:none}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav a{font-size:13.5px;font-weight:500;text-decoration:none;padding:8px 12px;opacity:.9;position:relative}
.nav a:hover{opacity:1}
.nav a[aria-current="page"]::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--red)}
.hdr .cat-btn{height:42px;padding:0 16px;font-size:13px;gap:10px;margin-left:12px}
.hdr .cat-btn svg{width:17px;height:17px}
.hdr.solid,.hdr.light{background:rgba(255,255,255,.96);backdrop-filter:blur(8px);color:var(--ink);box-shadow:0 1px 0 var(--line)}
.hdr.solid .brand .on-dark,.hdr.light .brand .on-dark{display:none}
.hdr.solid .brand .on-light,.hdr.light .brand .on-light{display:block}
.hdr.solid .brand span,.hdr.light .brand span{color:var(--stone)}
.srch{display:grid;place-items:center;width:44px;height:44px;margin-left:8px;color:inherit;border-radius:2px}
.srch svg{width:21px;height:21px}
.srch:hover{background:rgba(127,127,127,.12)}
.burger{display:none;margin-left:auto;width:44px;height:44px;border:0;background:transparent;color:inherit;cursor:pointer;padding:10px}
.burger svg{width:24px;height:24px}
@media (max-width:1080px){.nav,.hdr .cat-btn{display:none}.burger{display:block;margin-left:0}.srch{margin-left:auto}}
.mnav{position:fixed;inset:0;z-index:60;background:var(--ink);color:#fff;padding:calc(env(safe-area-inset-top,0px) + 20px) max(24px,env(safe-area-inset-right,0px)) calc(env(safe-area-inset-bottom,0px) + 24px) max(24px,env(safe-area-inset-left,0px));display:flex;flex-direction:column;gap:6px;overflow:auto}
.mnav[hidden]{display:none!important}
.mnav .close{align-self:flex-end;width:44px;height:44px;background:none;border:0;color:#fff;cursor:pointer}
.mnav a{font-size:24px;font-weight:500;text-decoration:none;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.mnav .btn{margin-top:18px;align-self:flex-start;font-size:15px}

/* mobile action bar (brief §07) */
.mbar{display:none}
@media (max-width:860px){
  .mbar{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:40;background:var(--red);color:#fff;padding-bottom:env(safe-area-inset-bottom,0px);padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px);box-shadow:0 -6px 20px rgba(30,42,44,.18)}
  .mbar a{display:flex;align-items:center;justify-content:center;gap:10px;height:56px;font-weight:600;font-size:15px;text-decoration:none}
  .mbar a+a{border-left:1px solid rgba(255,255,255,.35)}
  .mbar svg{width:19px;height:19px}
  body{padding-bottom:calc(56px + env(safe-area-inset-bottom,0px))}
}

/* footer */
.ftr{background:#17201F;color:#C9CFCC;padding-block:72px 40px;font-size:14px}
.ftr .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.ftr h4{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#fff;font-weight:500;margin-bottom:16px}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.ftr a{text-decoration:none}
.ftr a:hover{color:#fff}
.ftr .brand img{height:30px}
.ftr .about{margin-top:20px;max-width:28em;line-height:1.7}
.ftr .legal{margin-top:56px;padding-top:24px;border-top:1px solid #2E3938;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12.5px;color:#8E9895}
@media (max-width:860px){.ftr .grid{grid-template-columns:1fr 1fr}.ftr .grid>div:first-child{grid-column:1/-1}}

/* reveal */
.js .rv{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}

/* forms */
.field{display:grid;gap:6px}
.field label{font-size:12.5px;font-weight:500;color:var(--stone)}
.field input,.field select,.field textarea{font:inherit;font-size:15px;color:var(--ink);background:var(--white);border:1px solid var(--line);border-radius:2px;padding:13px 14px;width:100%;min-width:0;transition:border-color .2s}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--slate)}
.field .err{font-size:12.5px;color:var(--red)}
.ok{display:flex;gap:12px;align-items:flex-start;padding:16px 18px;background:#E7EFEA;color:#24473A;border-radius:2px;font-size:14.5px}

/* breadcrumb */
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--stone)}
.crumb a{text-decoration:none}
.crumb a:hover{color:var(--ink)}
.crumb span[aria-hidden]{opacity:.5}

/* tag */
.tag{display:inline-flex;align-items:center;height:24px;padding:0 9px;font-family:var(--mono);font-size:10.5px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;background:var(--white);color:var(--ink);border-radius:2px}
.tag.new{background:var(--red);color:#fff}
.tag.jp{background:var(--ink);color:#fff}

/* tile texture motif */
.tilebg{background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:44px 15px,44px 15px}

/* ---------- motion layer ---------- */
/* 1. photo pop-out: lifts toward the cursor with a 3D tilt, deep shadow and a soft light sheen (fine pointers only, set up in site.js) */
.pop{position:relative;transform-style:preserve-3d;will-change:transform;z-index:1}
html .pop.is-pop{z-index:5;transform:perspective(1100px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) translate3d(0,-10px,0) scale(1.035)!important;box-shadow:0 34px 70px -18px rgba(22,30,31,.42),0 14px 28px -12px rgba(22,30,31,.28)!important;transition:transform .18s ease-out,box-shadow .4s ease!important}
html .pop.pop-out{transition:transform .7s cubic-bezier(.2,.8,.2,1),box-shadow .6s ease!important}
.pop .sheen{position:absolute;inset:0;z-index:4;pointer-events:none;opacity:0;transition:opacity .4s;background:radial-gradient(520px circle at var(--gx,50%) var(--gy,50%),rgba(255,255,255,.26),rgba(255,255,255,0) 45%);mix-blend-mode:soft-light}
.pop.is-pop .sheen{opacity:1}
@media (hover:none){.pop:active{transform:scale(.985)!important;transition:transform .15s!important}}

/* 2. photos open like a curtain as they scroll into view */
.js .rv .im img,.js .rv.cat>img,.js .rv.need>img{clip-path:inset(0 0 100% 0);transition:clip-path 1.25s cubic-bezier(.7,0,.15,1) .12s,transform 1.2s cubic-bezier(.2,.7,.2,1)}
.js .rv.in .im img,.js .rv.in.cat>img,.js .rv.in.need>img{clip-path:inset(0 0 0 0)}

/* 3. reading progress line */
.progress{position:fixed;left:0;top:0;height:2px;width:100%;z-index:80;background:var(--red);transform-origin:0 50%;transform:scaleX(0);pointer-events:none}

/* 4. gallery thumbs + swatches */
.thumbs button,.sws button{transition:transform .3s cubic-bezier(.2,.8,.2,1),box-shadow .3s}
@media (hover:hover){.thumbs button:hover{transform:translateY(-4px);box-shadow:0 12px 22px -10px rgba(22,30,31,.45)}.sws button:hover{transform:scale(1.12)}}

@media (prefers-reduced-motion:reduce){.js .rv .im img,.js .rv.cat>img,.js .rv.need>img{clip-path:none}.progress{display:none}}

/* ---------- editorial pass: fewer "template" tells ----------
   Mono is kept only for product codes (SKU); labels are plain sentence-case sans. */
.eyebrow{font-family:var(--sans);font-size:13.5px;font-weight:600;letter-spacing:0;text-transform:none}
.tag{font-family:var(--sans);font-size:11.5px;font-weight:600;letter-spacing:.01em;text-transform:none;height:24px;padding:0 9px}
.ftr h4{font-family:var(--sans);font-size:14px;font-weight:600;letter-spacing:0;text-transform:none;color:#fff}
.brand span{font-family:var(--sans);font-size:9.5px;font-weight:500;letter-spacing:.14em}
.sec-head h2{margin-top:0;font-size:clamp(30px,3.4vw,44px)}
.ok[hidden]{display:none!important}