@charset "utf-8";
/* ============================================================
   echo — 株式会社echo コーポレートサイト
   方向: 静謐エディトリアル × 反響(ripple)署名
   配色: 生成り #F6F3EC × 墨 #1A1A18 × 響藍 #22406A
   ============================================================ */

/* ---------- Fonts ---------- */
/* Shippori Mincho(和文明朝/見出し), Noto Sans JP(和文本文), Space Mono(英字ラベル/番号) */

/* ---------- Tokens ---------- */
:root{
  /* color */
  --paper:#F6F3EC;
  --paper-2:#EFEADD;
  --card:#FBFAF4;
  --ink:#1A1A18;
  --ink-bg:#15140F;
  --ink-soft:#211F19;
  --text:#28261F;
  --mute:#6B675E;
  --dim:#938E83;
  --line:rgba(26,26,24,.12);
  --line-2:rgba(26,26,24,.22);
  --accent:#22406A;      /* 響藍 */
  --accent-soft:#3C5D8E;
  --accent-deep:#182F52;
  --accent-tint:rgba(34,64,106,.075);
  --on-dark:#EEE9DC;
  --on-dark-mute:rgba(238,233,220,.62);
  --on-dark-line:rgba(238,233,220,.16);
  --accent-on-dark:#7C9CCB;

  /* type */
  --serif:"Shippori Mincho","Yu Mincho",YuMincho,"Hiragino Mincho ProN",serif;
  --sans:"Noto Sans JP",system-ui,-apple-system,"Hiragino Kaku Gothic ProN",sans-serif;
  --mono:"Space Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;

  /* space */
  --pad:clamp(20px,5vw,80px);
  --sec-y:clamp(88px,12vw,172px);
  --maxw:1280px;
  --maxw-wide:1480px;
  --maxw-narrow:920px;
  --maxw-text:720px;

  /* motion */
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --dur:.7s;

  --header-h:clamp(64px,8vw,88px);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--text);
  line-height:1.9;
  font-size:clamp(15px,1.05vw,16.5px);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
  font-feature-settings:"palt" 1;
}
img,svg,canvas{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
ul,ol{list-style:none}
::selection{background:var(--accent);color:var(--paper)}

/* 禁則・改行 */
h1,h2,h3,h4,p,li,dd,dt,span,a,figcaption{
  line-break:strict;
  word-break:normal;
  overflow-wrap:break-word;
  text-wrap:pretty;
}
.nb{display:inline-block}      /* 文節を塊で改行 */

/* ---------- Utilities ---------- */
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.wrap-wide{max-width:var(--maxw-wide);margin-inline:auto;padding-inline:var(--pad)}
.wrap-narrow{max-width:var(--maxw-narrow);margin-inline:auto;padding-inline:var(--pad)}
.mono{font-family:var(--mono);text-transform:uppercase;letter-spacing:.22em;font-size:.72rem;font-weight:400}
.serif{font-family:var(--serif)}
.sec{padding-block:var(--sec-y)}
.center{text-align:center}

/* eyebrow / section label */
.eyebrow{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.28em;
  font-size:.7rem;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  gap:.7em;
}
.eyebrow::before{
  content:"";width:26px;height:1px;background:var(--accent);opacity:.6;
}
.eyebrow.no-line::before{display:none}

/* section heading */
.s-head{margin-bottom:clamp(38px,5vw,72px)}
.s-head .eyebrow{margin-bottom:1.4em}
.s-title{
  font-family:var(--serif);
  font-weight:500;
  line-height:1.28;
  letter-spacing:.02em;
  font-size:clamp(1.7rem,3.6vw,2.9rem);
  color:var(--ink);
}
/* 見出しは文節で折る（泣き別れ防止） */
.hero__title,.s-title,.svc__t,.str__t,.work__t,.phero__t,.cta__t,.for-list li,.step__t,.msg__q,.philo__q{word-break:auto-phrase}
.s-lead{
  margin-top:1.6em;max-width:var(--maxw-text);
  color:var(--mute);font-size:clamp(.95rem,1.15vw,1.03rem);line-height:2.1;
}

/* ---------- Loader (反響) ---------- */
.loader{
  position:fixed;inset:0;z-index:2000;
  background:var(--paper);
  display:grid;place-items:center;
  transition:opacity .8s var(--ease),visibility .8s;
}
.loader.done{opacity:0;visibility:hidden;pointer-events:none}
.loader__stage{position:relative;display:grid;place-items:center;width:220px;height:220px}
.loader__ring{
  position:absolute;border:1px solid var(--accent);border-radius:50%;
  width:40px;height:40px;opacity:0;
  animation:ldrRipple 2.4s var(--ease-out) infinite;
}
.loader__ring:nth-child(2){animation-delay:.6s}
.loader__ring:nth-child(3){animation-delay:1.2s}
.loader__word{
  position:relative;font-family:var(--serif);font-weight:500;
  font-size:2rem;letter-spacing:.14em;color:var(--ink);
  opacity:0;animation:ldrWord 1s var(--ease) .2s forwards;
}
.loader__word .dot{color:var(--accent)}
@keyframes ldrRipple{
  0%{width:36px;height:36px;opacity:.55}
  100%{width:200px;height:200px;opacity:0}
}
@keyframes ldrWord{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
/* フェイルセーフ: JSが動かなくても数秒で消える */
.loader{animation:ldrFailsafe 0s linear 4.2s forwards}
@keyframes ldrFailsafe{to{opacity:0;visibility:hidden;pointer-events:none}}
@media (prefers-reduced-motion:reduce){
  .loader__ring{animation:none;opacity:.4;width:150px;height:150px}
}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--header-h);
  display:flex;align-items:center;
  transition:background .5s var(--ease),box-shadow .5s var(--ease),height .4s var(--ease);
}
.site-header.is-solid{
  background:rgba(246,243,236,.82);
  backdrop-filter:blur(14px) saturate(1.1);
  -webkit-backdrop-filter:blur(14px) saturate(1.1);
  box-shadow:0 1px 0 var(--line);
}
.site-header .wrap-wide{display:flex;align-items:center;justify-content:space-between;width:100%}
.brand{display:inline-flex;align-items:center;gap:.5em;font-family:var(--serif);font-weight:500;font-size:1.5rem;letter-spacing:.08em;color:var(--ink);line-height:1}
.brand__mark{position:relative;width:14px;height:14px;flex:none}
.brand__mark::before,.brand__mark::after{content:"";position:absolute;inset:0;border:1.5px solid var(--accent);border-radius:50%}
.brand__mark::after{inset:4px;opacity:.5}
.brand small{font-family:var(--mono);font-size:.5rem;letter-spacing:.24em;color:var(--mute);text-transform:uppercase;align-self:flex-end;margin-bottom:.28em}

.nav{display:flex;align-items:center;gap:clamp(18px,2vw,34px)}
/* :not(.btn) 必須 — 付けないと .nav a(0,1,1) が .btn(0,1,0) の色に勝ち、
   紺地のCTAボタンが墨文字（hover時は紺文字）になって読めなくなる */
.nav a:not(.btn){
  font-family:var(--mono);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink);position:relative;padding-block:.4em;transition:color .3s
}
.nav a:not(.btn)::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--accent);transition:width .4s var(--ease)}
.nav a:not(.btn):hover{color:var(--accent)}
.nav a:not(.btn):hover::after{width:100%}
.nav .btn{margin-left:6px}

.burger{display:none;width:44px;height:44px;position:relative;z-index:1200}
.burger span{position:absolute;left:9px;right:9px;height:1.5px;background:var(--ink);transition:transform .45s var(--ease),opacity .3s}
.burger span:nth-child(1){top:17px}
.burger span:nth-child(2){bottom:17px}
.burger.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.burger.is-open span:nth-child(2){transform:translateY(-5px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{
  --bh:52px;
  display:inline-flex;align-items:center;gap:.9em;
  height:var(--bh);padding:0 1.7em;border-radius:999px;
  font-family:var(--mono);font-size:.82rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;
  background:var(--accent);color:var(--paper);
  position:relative;overflow:hidden;isolation:isolate;
  transition:color .4s var(--ease),transform .4s var(--ease);
}
.btn::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--accent-deep);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.btn:hover::before{transform:scaleX(1)}
.btn:hover{transform:translateY(-2px)}
.btn .arw{transition:transform .45s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}
.btn--ghost{background:transparent;color:var(--ink);border:1px solid var(--line-2)}
.btn--ghost::before{background:var(--ink)}
.btn--ghost:hover{color:var(--paper)}
.btn--lg{--bh:60px;padding:0 2.2em;font-size:.78rem}
.btn--on-dark{background:var(--paper);color:var(--ink)}
.btn--on-dark::before{background:var(--accent-on-dark)}
.btn--on-dark:hover{color:var(--ink-bg)}

/* text link */
.tlink{
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);
  position:relative;padding-bottom:.4em;
}
.tlink::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;background:var(--line-2)}
.tlink .bar{position:absolute;left:0;bottom:0;height:1px;width:100%;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.tlink:hover .bar{transform:scaleX(1)}
.tlink .arw{transition:transform .45s var(--ease)}
.tlink:hover .arw{transform:translateX(4px)}

/* ---------- Drawer (mobile) ---------- */
.drawer{
  position:fixed;inset:0;z-index:1100;
  background:var(--paper);
  padding:calc(var(--header-h) + 20px) var(--pad) 40px;
  display:flex;flex-direction:column;
  clip-path:inset(0 0 100% 0);
  visibility:hidden;
  transition:clip-path .6s var(--ease),visibility .6s;
  overflow-y:auto;
}
.drawer.is-open{clip-path:inset(0 0 0 0);visibility:visible}
.drawer__nav{display:flex;flex-direction:column;gap:2px;margin-top:auto;margin-bottom:auto}
.drawer__nav a{
  display:flex;align-items:baseline;gap:1em;padding:.5em 0;
  font-family:var(--serif);font-size:clamp(1.5rem,7vw,2.1rem);font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease),color .3s;
}
.drawer.is-open .drawer__nav a{opacity:1;transform:none}
.drawer__nav a .n{font-family:var(--mono);font-size:.7rem;color:var(--accent);letter-spacing:.1em}
.drawer__nav a:hover{color:var(--accent)}
.drawer__foot{display:flex;flex-wrap:wrap;gap:1.4em;align-items:center;justify-content:space-between;padding-top:24px}
.drawer__foot a{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;color:var(--mute)}

/* ---------- Progress bar ---------- */
.progress{position:fixed;top:0;left:0;height:2px;width:100%;transform:scaleX(0);transform-origin:left;background:var(--accent);z-index:1500}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  overflow:hidden;background:var(--paper);
}
.hero__canvas{position:absolute;inset:0;z-index:0;width:100%;height:100%}
.hero__inner{position:relative;z-index:2;width:100%}
.hero__eyebrow{margin-bottom:2.4em}
.hero__title{
  font-family:var(--serif);font-weight:500;color:var(--ink);
  font-size:clamp(2.9rem,10vw,7.4rem);
  line-height:1.06;letter-spacing:.01em;
}
.hero__title .l{display:block;overflow:hidden}
.hero__title .l>span{display:block;transform:translateY(105%);transition:transform 1s var(--ease-out)}
.is-ready .hero__title .l>span{transform:none}
.hero__title .l:nth-child(2)>span{transition-delay:.12s}
.hero__title .resonate{color:var(--accent);position:relative}
.hero__lead{
  margin-top:2.2em;max-width:34em;color:var(--mute);
  font-size:clamp(.98rem,1.3vw,1.12rem);line-height:2.15;
  opacity:0;transform:translateY(14px);transition:opacity .9s var(--ease) .5s,transform .9s var(--ease) .5s;
}
.is-ready .hero__lead{opacity:1;transform:none}
.hero__cta{margin-top:3em;display:flex;flex-wrap:wrap;gap:16px;opacity:0;transform:translateY(14px);transition:opacity .9s var(--ease) .7s,transform .9s var(--ease) .7s}
.is-ready .hero__cta{opacity:1;transform:none}
.hero__meta{
  position:absolute;left:var(--pad);right:var(--pad);bottom:clamp(22px,4vw,40px);z-index:2;
  display:flex;justify-content:space-between;align-items:flex-end;gap:20px;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--mute);
  opacity:0;transition:opacity 1s var(--ease) 1s;
}
.is-ready .hero__meta{opacity:1}
.hero__meta .jp{font-family:var(--sans);letter-spacing:.08em;text-transform:none}

/* ---------- Reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
[data-reveal].d1{transition-delay:.09s}
[data-reveal].d2{transition-delay:.18s}
[data-reveal].d3{transition-delay:.27s}
[data-reveal].d4{transition-delay:.36s}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1!important;transform:none!important}
  .hero__title .l>span,.hero__lead,.hero__cta,.hero__meta{opacity:1!important;transform:none!important}
}

/* ---------- Section: dark (philosophy / cta) ---------- */
.dark{background:var(--ink-bg);color:var(--on-dark)}
.dark .s-title,.dark .brand{color:var(--on-dark)}
.dark .s-lead,.dark p{color:var(--on-dark-mute)}
.dark .eyebrow{color:var(--accent-on-dark)}
.dark .eyebrow::before{background:var(--accent-on-dark)}
.dark .mono{color:var(--on-dark-mute)}

/* ---------- Philosophy (dark, editorial quote) ---------- */
.philo{position:relative;overflow:hidden}
.philo__ripple{position:absolute;inset:0;z-index:0;opacity:.5;pointer-events:none}
.philo .wrap-narrow{position:relative;z-index:1}
.philo__q{
  font-family:var(--serif);font-weight:400;line-height:1.62;letter-spacing:.03em;
  font-size:clamp(1.5rem,3.9vw,2.7rem);color:var(--on-dark);
}
.philo__q em{font-style:normal;color:var(--accent-on-dark);white-space:nowrap}
.nowrap{white-space:nowrap}
.philo__body{margin-top:2.4em;display:grid;gap:1.6em;max-width:46em;color:var(--on-dark-mute);font-size:1rem;line-height:2.15}
.philo__body p{color:var(--on-dark-mute)}

/* ---------- Approach (4 steps) ---------- */
.steps{display:grid;gap:1px;background:var(--line);border-block:1px solid var(--line)}
.step{
  background:var(--paper);display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:clamp(24px,4vw,64px);align-items:center;padding:clamp(34px,5vw,64px) 0;
}
.step__media{position:relative;aspect-ratio:16/11;background:var(--paper-2);overflow:hidden;border-radius:2px}
.step__media img{width:100%;height:100%;object-fit:cover}
.step__media .ph{position:absolute;inset:0;display:grid;place-items:center;color:var(--dim);font-family:var(--mono);font-size:.7rem;letter-spacing:.1em}
.step__body{padding-inline:clamp(0px,2vw,20px)}
.step__n{font-family:var(--mono);font-size:.74rem;letter-spacing:.2em;color:var(--accent);display:block;margin-bottom:1.3em}
.step__t{font-family:var(--serif);font-size:clamp(1.5rem,3vw,2.15rem);font-weight:500;color:var(--ink);line-height:1.3;margin-bottom:.7em}
.step__t .en{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.24em;color:var(--mute);text-transform:uppercase;margin-top:.9em;font-weight:400}
.step__d{color:var(--mute);line-height:2.1;max-width:32em}
.step:nth-child(even){direction:rtl}
.step:nth-child(even)>*{direction:ltr}

/* ---------- Service ---------- */
.svc{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.svc__item{background:var(--paper);padding:clamp(30px,3.4vw,52px);display:flex;flex-direction:column;gap:1em;min-height:280px;transition:background .5s var(--ease)}
.svc__item:hover{background:var(--card)}
.svc__n{font-family:var(--mono);font-size:.72rem;letter-spacing:.2em;color:var(--accent)}
.svc__t{font-family:var(--serif);font-size:clamp(1.25rem,2vw,1.55rem);font-weight:500;color:var(--ink);line-height:1.4}
.svc__t .en{display:block;font-family:var(--mono);font-size:.62rem;letter-spacing:.2em;color:var(--dim);text-transform:uppercase;margin-top:.7em}
.svc__d{color:var(--mute);font-size:.92rem;line-height:2;margin-top:auto}

/* ---------- Strength ---------- */
.str{display:grid;gap:0}
.str__row{
  display:grid;grid-template-columns:auto minmax(0,.4fr) minmax(0,1fr);
  gap:clamp(20px,4vw,60px);align-items:baseline;
  padding:clamp(26px,3.4vw,42px) 0;border-top:1px solid var(--line);
}
.str__row:last-child{border-bottom:1px solid var(--line)}
.str__n{font-family:var(--mono);font-size:.8rem;color:var(--accent);letter-spacing:.1em;padding-top:.4em}
.str__t{font-family:var(--serif);font-size:clamp(1.25rem,2.2vw,1.7rem);font-weight:500;color:var(--ink);line-height:1.4}
.str__d{color:var(--mute);line-height:2.05;font-size:.96rem}
.str__row:hover .str__t{color:var(--accent)}
.str__t,.str__row:hover .str__t{transition:color .4s var(--ease)}

/* ---------- Works ---------- */
.works-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(28px,3vw,52px) clamp(24px,3vw,44px)}
.work{display:block;position:relative}
.work__media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--paper-2);border-radius:2px}
.work__media img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease-out),filter .6s}
.work:hover .work__media img{transform:scale(1.045)}
.work__media .ph{position:absolute;inset:0;display:grid;place-items:center;color:var(--dim);font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-align:center;padding:20px}
.work__cat{position:absolute;top:14px;left:14px;z-index:2;font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;background:rgba(246,243,236,.9);color:var(--accent);padding:.5em .9em;border-radius:999px}
.work__meta{padding-top:1.3em;display:flex;flex-direction:column;gap:.5em}
.work__t{font-family:var(--serif);font-size:clamp(1.15rem,1.7vw,1.4rem);font-weight:500;color:var(--ink);line-height:1.5}
.work__d{color:var(--mute);font-size:.9rem;line-height:1.9}
.work__kpi{display:flex;align-items:baseline;gap:.5em;margin-top:.4em;font-family:var(--mono);color:var(--accent);font-size:.76rem;letter-spacing:.06em}
.work__kpi b{font-size:1.5rem;font-weight:700;letter-spacing:0}
.work:hover .work__t{color:var(--accent)}
.work__t{transition:color .4s}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:var(--on-dark-line);border:1px solid var(--on-dark-line)}
.stat{background:var(--ink-bg);padding:clamp(28px,3vw,44px);text-align:center}
.stat__v{font-family:var(--serif);font-size:clamp(2.4rem,5vw,3.6rem);color:var(--on-dark);line-height:1;letter-spacing:.01em}
.stat__v .u{font-size:.42em;color:var(--accent-on-dark);margin-left:.15em}
.stat__l{margin-top:1.1em;font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--on-dark-mute)}

/* ---------- For (target) ---------- */
.for-list{display:grid;gap:0;max-width:var(--maxw-narrow)}
.for-list li{
  display:flex;gap:1.2em;align-items:flex-start;padding:clamp(20px,2.6vw,30px) 0;border-top:1px solid var(--line);
  font-family:var(--serif);font-size:clamp(1.1rem,2vw,1.5rem);font-weight:500;color:var(--ink);line-height:1.55;
}
.for-list li:last-child{border-bottom:1px solid var(--line)}
.for-list li .rp{flex:none;width:16px;height:16px;margin-top:.5em;position:relative}
.for-list li .rp::before,.for-list li .rp::after{content:"";position:absolute;inset:0;border:1px solid var(--accent);border-radius:50%}
.for-list li .rp::after{inset:5px;opacity:.5}

/* ---------- Message ---------- */
.msg{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(30px,5vw,80px);align-items:center}
.msg__media{position:relative;aspect-ratio:4/5;background:var(--paper-2);overflow:hidden;border-radius:2px}
.msg__media img{width:100%;height:100%;object-fit:cover}
.msg__media .ph{position:absolute;inset:0;display:grid;place-items:center;color:var(--dim);font-family:var(--mono);font-size:.7rem;letter-spacing:.1em}
.msg__q{font-family:var(--serif);font-size:clamp(1.5rem,3vw,2.3rem);font-weight:500;color:var(--ink);line-height:1.5;letter-spacing:.02em;margin-bottom:1.4em}
.msg__body{display:grid;gap:1.5em;color:var(--text);line-height:2.15;max-width:38em}
.msg__sign{margin-top:2em;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;color:var(--mute);text-transform:uppercase}
.msg__sign b{font-family:var(--serif);font-size:1.15rem;color:var(--ink);letter-spacing:.06em;text-transform:none;display:inline-block;margin-left:.6em}

/* ---------- CTA band ---------- */
.cta{position:relative;overflow:hidden;text-align:center}
.cta__ripple{position:absolute;inset:0;z-index:0;opacity:.55;pointer-events:none}
.cta .wrap-narrow{position:relative;z-index:1}
.cta__t{font-family:var(--serif);font-size:clamp(2rem,6vw,4rem);font-weight:500;color:var(--on-dark);line-height:1.25;letter-spacing:.02em}
.cta__t .accent{color:var(--accent-on-dark)}
.cta__lead{margin:1.8em auto 2.6em;max-width:34em;color:var(--on-dark-mute);line-height:2.1}
.cta__row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:var(--paper);border-top:1px solid var(--line);padding-block:clamp(56px,7vw,90px) 40px}
.foot-top{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:clamp(30px,4vw,60px);padding-bottom:clamp(40px,5vw,64px)}
.foot-brand .brand{font-size:1.8rem;margin-bottom:1.2em}
.foot-brand p{color:var(--mute);font-size:.9rem;line-height:2;max-width:24em}
.foot-col h4{font-family:var(--mono);font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-bottom:1.6em}
.foot-col ul{display:grid;gap:1em}
.foot-col a{font-size:.9rem;color:var(--text);transition:color .3s}
.foot-col a:hover{color:var(--accent)}
.foot-bottom{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;padding-top:30px;border-top:1px solid var(--line)}
.foot-bottom small,.foot-bottom a{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;color:var(--mute)}
.foot-bottom .links{display:flex;gap:1.6em}

/* ---------- Company table ---------- */
.info{border-top:1px solid var(--line)}
.info div{display:grid;grid-template-columns:minmax(140px,.28fr) 1fr;gap:20px;padding:clamp(18px,2.4vw,26px) 0;border-bottom:1px solid var(--line)}
.info dt{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mute);padding-top:.2em}
.info dd{color:var(--text);line-height:1.9}

/* ---------- Page hero (lower pages) ---------- */
.phero{padding-top:calc(var(--header-h) + clamp(60px,9vw,120px));padding-bottom:clamp(50px,7vw,90px);position:relative;overflow:hidden}
.phero__ripple{position:absolute;top:0;right:0;width:min(60vw,720px);height:100%;z-index:0;opacity:.6;pointer-events:none}
.phero .wrap{position:relative;z-index:1}
.phero .eyebrow{margin-bottom:1.8em}
.phero__t{font-family:var(--serif);font-weight:500;color:var(--ink);font-size:clamp(2.4rem,6vw,4.6rem);line-height:1.1;letter-spacing:.01em}
.phero__t .accent{color:var(--accent)}
.phero__lead{margin-top:1.8em;max-width:var(--maxw-text);color:var(--mute);line-height:2.15;font-size:clamp(.98rem,1.2vw,1.08rem)}
.crumb{display:flex;gap:.7em;align-items:center;font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mute);margin-bottom:2.4em}
.crumb a:hover{color:var(--accent)}
.crumb .sep{opacity:.5}

/* prose (lower pages) */
.prose{max-width:var(--maxw-text);margin-inline:auto}
.prose h3{font-family:var(--serif);font-weight:500;font-size:clamp(1.4rem,2.6vw,1.9rem);color:var(--ink);line-height:1.4;margin:2.4em 0 1em;letter-spacing:.02em}
.prose h3:first-child{margin-top:0}
.prose p{color:var(--text);line-height:2.15;margin-bottom:1.5em}
.prose .lead{font-family:var(--serif);font-size:clamp(1.2rem,2.4vw,1.6rem);line-height:1.7;color:var(--ink);margin-bottom:1.5em}
.prose .pull{font-family:var(--serif);font-size:clamp(1.4rem,3vw,2rem);color:var(--accent);line-height:1.5;padding:1em 0;margin:1.4em 0;border-block:1px solid var(--line)}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav{display:none}
  .burger{display:block}
  .foot-top{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
}
@media (max-width:880px){
  .step{grid-template-columns:1fr;gap:20px}
  .step:nth-child(even){direction:ltr}
  .step__media{aspect-ratio:16/10}
  .msg{grid-template-columns:1fr;gap:28px}
  .msg__media{aspect-ratio:4/3;max-width:520px}
  .str__row{grid-template-columns:auto 1fr;gap:14px 24px}
  .str__d{grid-column:1/-1}
  .svc{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:680px){
  .works-grid{grid-template-columns:1fr;gap:36px}
  .svc{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .info div{grid-template-columns:1fr;gap:6px}
  .info dt{padding-top:0}
  .hero__meta{display:none}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:16px}
}
@media (max-width:420px){
  .stats{grid-template-columns:1fr}
}

/* 画像を .ph(プレースホルダ)より前面に。
   .ph は absolute / img は static なので、指定しないと画像の上に
   プレースホルダ文字が残る。onerror で img が消えれば .ph が復帰する。 */
.step__media img,.work__media img,.msg__media img,.wd-kv img{position:relative;z-index:1}

/* ---------- Lower pages: nav current ---------- */
.nav a.is-current{color:var(--accent)}
.nav a.is-current::after{width:100%}

/* prose lists */
.prose ul{margin:.4em 0 1.8em;display:grid;gap:1em}
.prose ul li{position:relative;padding-left:1.7em;color:var(--text);line-height:2.05}
.prose ul li::before{content:"";position:absolute;left:0;top:.72em;width:11px;height:11px;border:1px solid var(--accent);border-radius:50%}
.prose ul li::after{content:"";position:absolute;left:3px;top:calc(.72em + 3px);width:5px;height:5px;background:var(--accent);border-radius:50%;opacity:.45}

/* process timeline */
.process{display:grid;border-top:1px solid var(--line)}
.process__item{display:grid;grid-template-columns:70px 1fr;gap:clamp(16px,3vw,40px);padding:clamp(26px,3.4vw,44px) 0;border-bottom:1px solid var(--line)}
.process__n{font-family:var(--mono);font-size:.82rem;color:var(--accent);letter-spacing:.06em;padding-top:.3em}
.process__t{font-family:var(--serif);font-size:clamp(1.2rem,2.2vw,1.6rem);font-weight:500;color:var(--ink);margin-bottom:.5em;line-height:1.4}
.process__d{color:var(--mute);line-height:2.05;max-width:40em}

/* service detail rows */
.svc-detail{display:grid;border-top:1px solid var(--line)}
.svc-detail__row{display:grid;grid-template-columns:minmax(0,.42fr) minmax(0,1fr);gap:clamp(20px,4vw,64px);padding:clamp(34px,4.6vw,64px) 0;border-bottom:1px solid var(--line)}
.svc-detail__n{font-family:var(--mono);font-size:.74rem;letter-spacing:.2em;color:var(--accent);display:block;margin-bottom:1em}
.svc-detail__t{font-family:var(--serif);font-size:clamp(1.4rem,2.6vw,2rem);font-weight:500;color:var(--ink);line-height:1.4}
.svc-detail__t .en{display:block;font-family:var(--mono);font-size:.66rem;letter-spacing:.2em;color:var(--dim);text-transform:uppercase;margin-top:.9em}
.svc-detail__d{color:var(--mute);line-height:2.1}
.svc-detail__d p+p{margin-top:1.2em}
.svc-detail__d ul{margin-top:1.4em;display:grid;gap:.7em}
.svc-detail__d ul li{position:relative;padding-left:1.4em;font-size:.94rem}
.svc-detail__d ul li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border:1px solid var(--accent);border-radius:50%}

/* work detail */
.wd-kv{aspect-ratio:16/9;background:var(--paper-2);position:relative;overflow:hidden;border-radius:2px;margin-bottom:clamp(34px,5vw,64px)}
.wd-kv img{width:100%;height:100%;object-fit:cover}
.wd-kv .ph{position:absolute;inset:0;display:grid;place-items:center;color:var(--dim);font-family:var(--mono);font-size:.72rem;letter-spacing:.1em}
.wd-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-bottom:clamp(40px,6vw,72px)}
.wd-summary div{background:var(--paper);padding:clamp(20px,2.4vw,30px)}
.wd-summary dt{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin-bottom:.9em}
.wd-summary dd{font-family:var(--serif);font-size:1.05rem;color:var(--ink);line-height:1.6}
.wd-block{max-width:var(--maxw-text);margin-bottom:clamp(40px,5vw,64px)}
.wd-block h2{font-family:var(--mono);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:1.4em}
.wd-block p{color:var(--text);line-height:2.15;margin-bottom:1.2em}
.wd-result{background:var(--ink-bg);color:var(--on-dark);padding:clamp(32px,4.4vw,60px);border-radius:2px}
.wd-result h2{color:var(--accent-on-dark)}
.wd-result p{color:var(--on-dark-mute)}
.wd-kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:clamp(24px,3vw,44px);margin-top:2em}
.wd-kpi .v{font-family:var(--serif);font-size:clamp(2.2rem,5vw,3.4rem);color:var(--on-dark);line-height:1}
.wd-kpi .v .u{font-size:.4em;color:var(--accent-on-dark);margin-left:.1em}
.wd-kpi .l{margin-top:.8em;font-family:var(--mono);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--on-dark-mute)}
.next-work{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:clamp(30px,4vw,52px) 0;border-top:1px solid var(--line);margin-top:clamp(40px,5vw,72px)}
.next-work .lbl{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin-bottom:.6em}
.next-work .ttl{font-family:var(--serif);font-size:clamp(1.2rem,2.2vw,1.7rem);color:var(--ink);transition:color .3s}
.next-work a:hover .ttl{color:var(--accent)}

/* works filter chips */
.wfilter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:clamp(34px,4vw,56px)}
.chip{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;padding:.7em 1.25em;border:1px solid var(--line-2);border-radius:999px;color:var(--mute);transition:color .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease)}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}

/* contact form */
.contact-split{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(40px,6vw,90px);align-items:start}
.form{display:grid;gap:clamp(18px,2.2vw,24px)}
.form__body{display:grid;gap:clamp(18px,2.2vw,24px)}
.form__body .btn{justify-self:start;margin-top:.6em}
.field{display:grid;gap:.7em}
.field label{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.field label .req{color:var(--accent)}
.field input,.field textarea,.field select{font:inherit;font-size:.98rem;padding:.95em 1.05em;background:var(--card);border:1px solid var(--line-2);border-radius:3px;color:var(--ink);transition:border-color .3s,box-shadow .3s;width:100%}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-tint)}
.field textarea{min-height:150px;resize:vertical;line-height:1.8}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:inherit}
.form__note{font-size:.82rem;color:var(--mute);line-height:1.9;margin-top:.4em}
.form__thanks{display:none;padding:clamp(28px,4vw,48px);background:var(--accent-tint);border:1px solid rgba(34,64,106,.3);border-radius:3px}
.form__thanks h3{font-family:var(--serif);font-size:1.4rem;color:var(--ink);margin-bottom:.6em}
.form__thanks p{color:var(--mute);line-height:2}
.form.sent .form__thanks{display:block}
.form.sent .form__body{display:none}
.contact-aside{background:var(--paper-2);padding:clamp(28px,3.4vw,44px);border-radius:3px}
.contact-aside h3{font-family:var(--serif);font-size:1.15rem;color:var(--ink);margin-bottom:1.4em;font-weight:500}
.contact-aside dl div{padding:1.1em 0;border-top:1px solid var(--line)}
.contact-aside dt{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin-bottom:.5em}
.contact-aside dd{color:var(--text);font-size:.96rem;line-height:1.7}
.contact-aside dd a:hover{color:var(--accent)}

@media (max-width:880px){
  .wd-grid,.contact-split{grid-template-columns:1fr}
  .wd-summary{grid-template-columns:1fr}
  .svc-detail__row{grid-template-columns:1fr;gap:14px}
  .process__item{grid-template-columns:52px 1fr}
}
@media (max-width:560px){
  .form__row{grid-template-columns:1fr}
  .next-work{flex-direction:column;align-items:flex-start;gap:14px}
}

/* no-js failsafe */
.no-js .loader{display:none}
.no-js [data-reveal]{opacity:1;transform:none}
.no-js .hero__title .l>span,.no-js .hero__lead,.no-js .hero__cta,.no-js .hero__meta{opacity:1;transform:none}