/* ============================================================
   Krafts — style.css
   ============================================================ */
:root{
  --cream:        #f3efe6;
  --cream-2:      #efe9dd;
  --paper:        #f7f4ed;
  --ink:          #20201d;
  --ink-soft:     #4a463f;
  --muted:        #908b80;
  --line:         #d8d2c4;
  --line-dark:    #34322d;
  --dark:         #1a1916;
  --dark-2:       #211f1b;
  --accent:       #c4d11e;   /* lime dot */
  --olive:        #a9aa57;   /* numbers */
  --max:          1120px;
  --pad:          clamp(20px, 5vw, 64px);
  --ease:         cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--cream);
  line-height:1.8;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,p,dl,dd{ margin:0; }

.container{ width:100%; max-width:var(--max); margin:0 auto; padding-inline:var(--pad); }

/* ---- shared section ---- */
.section{ padding-block:clamp(72px,11vw,140px); }
.eyebrow{
  display:inline-flex; align-items:center; gap:14px;
  font-size:11px; letter-spacing:.28em; font-weight:500;
  color:var(--ink-soft); text-transform:uppercase;
}
.eyebrow i{ width:24px; height:1px; background:var(--line); display:inline-block; }
.eyebrow--light{ color:#c8c2b4; }
.eyebrow--light i{ background:#4a463f; }

.section-head{ margin-bottom:clamp(40px,6vw,72px); }
.section-title{
  font-family:"Noto Serif JP",serif;
  font-weight:500;
  font-size:clamp(23px,3.4vw,34px);
  letter-spacing:.03em;
  margin-top:18px;
  line-height:1.3;
}

/* lime dot accent */
.hero__dot{
  display:block; width:9px; height:9px; border-radius:50%;
  background:var(--accent); margin-top:28px;
}

/* ============================================================
   Header
   ============================================================ */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:50;
  transition:background .4s var(--ease), box-shadow .4s var(--ease), padding .4s var(--ease);
  padding-block:22px;
}
/* 初回ロード中はヘッダーのトランジションを無効化し、状態切替のチラつきを防ぐ */
.preload .site-header{ transition:none !important; }
.site-header.scrolled{
  background:rgba(243,239,230,.85);
  backdrop-filter:saturate(140%) blur(12px);
  -webkit-backdrop-filter:saturate(140%) blur(12px);
  padding-block:14px;
  box-shadow:0 1px 0 rgba(0,0,0,.05);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; }

.logo{
  font-family:"Cormorant Garamond",serif;
  font-weight:600; font-size:27px; letter-spacing:.01em;
  position:relative; display:inline-flex; align-items:flex-end; line-height:1;
}
.logo .dot{ width:7px; height:7px; border-radius:50%; background:var(--accent); margin-left:3px; margin-bottom:5px; }

.nav{ display:flex; gap:clamp(20px,3vw,44px); }
.nav a{
  font-size:11.5px; letter-spacing:.18em; font-weight:500; color:var(--ink-soft);
  position:relative; padding-block:4px;
}
.nav a::after{
  content:""; position:absolute; left:0; bottom:0; width:100%; height:1px;
  background:var(--ink); transform:scaleX(0); transform-origin:right; transition:transform .35s var(--ease);
}
.nav a:hover{ color:var(--ink); }
.nav a:hover::after{ transform:scaleX(1); transform-origin:left; }

.nav-toggle{
  display:none; flex-direction:column; gap:5px; width:30px; height:24px;
  background:none; border:0; cursor:pointer; padding:0; z-index:60;
}
.nav-toggle span{ height:1.5px; width:100%; background:var(--ink); transition:transform .35s var(--ease), opacity .25s; }
.nav-toggle.open span:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }

/* ============================================================
   Hero
   ============================================================ */
.hero{ position:relative; min-height:100vh; min-height:100svh; display:flex; align-items:center; overflow:hidden; }
.hero__bg{
  position:absolute; inset:0;
  background:url("../assets/hero.png") center right / cover no-repeat;
}
.hero__overlay{
  position:absolute; inset:0;
  background:
    linear-gradient(90deg, var(--cream) 0%, rgba(243,239,230,.85) 22%, rgba(243,239,230,.25) 45%, rgba(243,239,230,0) 65%),
    linear-gradient(180deg, rgba(243,239,230,.6) 0%, rgba(243,239,230,0) 25%);
}
.hero__inner{ position:relative; z-index:2; padding-top:80px; }
.hero__title{
  font-family:"Cormorant Garamond",serif;
  font-weight:500;
  font-size:clamp(52px,11vw,118px);
  line-height:.98; letter-spacing:.005em; color:var(--ink);
}
.hero__title .line{ display:block; }
/* JS有効時は分割＆フォント準備が整うまで見出しを隠し、ちらつき/リフローを防ぐ */
.js .hero__title{ visibility:hidden; }
.js .hero.is-in .hero__title{ visibility:visible; }
.hero__title .char{
  display:inline-block; opacity:0;
  will-change:opacity;
}
.hero__title .char.space{ width:.3em; }
.hero.is-in .char{ animation:charIn .9s var(--ease) forwards; animation-delay:var(--d,0s); }
@keyframes charIn{ from{ opacity:0; } to{ opacity:1; } }

.hero__sub{
  margin-top:26px; font-size:clamp(13px,2.2vw,16px);
  letter-spacing:.14em; color:var(--ink-soft); font-weight:500;
}
.hero__scroll{
  position:absolute; left:var(--pad); bottom:34px; z-index:2;
  font-family:"Cormorant Garamond",serif; font-size:13px; letter-spacing:.25em;
  color:var(--ink-soft); writing-mode:vertical-rl;
}
.hero__scroll span{ position:relative; padding-bottom:42px; }
.hero__scroll span::after{
  content:""; position:absolute; left:50%; bottom:0; width:1px; height:30px; background:var(--ink-soft);
  transform-origin:top; animation:scrollLine 1.8s var(--ease) infinite;
}
@keyframes scrollLine{ 0%{ transform:scaleY(0); } 40%{ transform:scaleY(1); } 100%{ transform:scaleY(0); transform-origin:bottom; } }

/* ============================================================
   Services
   ============================================================ */
.services{ background:linear-gradient(180deg,var(--cream) 0%, var(--paper) 100%); }
.service-list{ border-top:1px solid var(--line); }
.service{
  display:grid;
  grid-template-columns:120px minmax(0,1.25fr) minmax(0,300px);
  gap:clamp(20px,4vw,56px);
  align-items:start;
  padding-block:clamp(34px,5vw,52px);
  border-bottom:1px solid var(--line);
}
.service__body{ min-width:0; }
.service__num{
  font-family:"Cormorant Garamond",serif; font-size:clamp(40px,5vw,58px);
  font-weight:500; color:var(--olive); line-height:1;
}
.service__title{
  font-family:"Cormorant Garamond",serif; font-weight:600;
  font-size:clamp(22px,3vw,30px); letter-spacing:.01em; margin-bottom:4px;
}
.service__jp{
  font-family:"Noto Serif JP",serif; font-size:12.5px; font-weight:500;
  letter-spacing:.08em; color:var(--muted); margin-bottom:16px;
}
.service__desc{ font-size:13.5px; color:var(--ink-soft); max-width:48ch; }
.service__tags li{
  position:relative; padding-left:18px; font-size:13px; color:var(--ink-soft);
  margin-bottom:10px; letter-spacing:.02em;
}
.service__tags li::before{
  content:""; position:absolute; left:0; top:.7em; width:5px; height:5px; border-radius:50%;
  background:var(--olive);
}
.service__tags li:last-child{ margin-bottom:0; }

/* ============================================================
   Studio (dark)
   ============================================================ */
.studio{ position:relative; background:var(--dark); color:var(--paper); overflow:hidden; }
.studio::before{
  content:""; position:absolute; inset:0;
  background:url("../assets/hero.png") center / cover no-repeat;
  opacity:.10; filter:grayscale(.4);
}
.studio__inner{
  position:relative; z-index:2;
  display:grid; grid-template-columns:1.1fr 1fr; gap:clamp(36px,6vw,90px); align-items:center;
}
.studio__title{
  font-family:"Noto Serif JP",serif; font-weight:500;
  font-size:clamp(30px,5vw,54px); line-height:1.45; letter-spacing:.04em; margin-top:26px;
}
.studio__title + .hero__dot{ margin-top:34px; }
.studio__right p{ font-size:14px; color:#cfcabd; letter-spacing:.03em; }
.studio__right p + p{ margin-top:20px; }

/* ============================================================
   Company
   ============================================================ */
.company{ background:var(--paper); }
.company__inner{ display:grid; grid-template-columns:.9fr 1.2fr; gap:clamp(36px,6vw,90px); }
.company__lead{ margin-top:26px; font-size:13.5px; color:var(--ink-soft); max-width:34ch; }
.company__table{ border-top:1px solid var(--line); }
.company__table .row{
  display:grid; grid-template-columns:140px 1fr; gap:20px;
  padding-block:18px; border-bottom:1px solid var(--line);
}
.company__table dt{ font-size:12px; letter-spacing:.14em; color:var(--muted); font-weight:500; padding-top:2px; }
.company__table dd{ font-size:14px; color:var(--ink); }

/* ============================================================
   Contact
   ============================================================ */
.contact{ background:linear-gradient(180deg,var(--paper) 0%, var(--cream-2) 100%); }
.contact__inner{ display:grid; grid-template-columns:.85fr 1.15fr; gap:clamp(36px,6vw,90px); align-items:start; }
.contact__lead{ margin-top:26px; font-size:13.5px; color:var(--ink-soft); }

.contact__form{ display:flex; flex-direction:column; gap:18px; min-width:0; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.field{ display:flex; flex-direction:column; gap:8px; }
.field label{ font-size:12px; letter-spacing:.1em; color:var(--ink-soft); font-weight:500; }
.req{ color:var(--accent); }
.field input,.field textarea{
  font-family:inherit; font-size:14px; color:var(--ink);
  background:rgba(255,255,255,.6); border:1px solid var(--line); border-radius:2px;
  padding:13px 15px; transition:border-color .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
}
.field textarea{ resize:vertical; min-height:130px; }
.field input::placeholder,.field textarea::placeholder{ color:#b3ad9f; }
.field input:focus,.field textarea:focus{
  outline:none; border-color:var(--ink); background:#fff;
  box-shadow:0 0 0 3px rgba(196,209,30,.16);
}
.field.invalid input,.field.invalid textarea{ border-color:#c0563f; }

/* honeypot — hidden from real users (no off-screen offset → no overflow) */
.hp{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0 0 0 0); clip-path:inset(50%);
  white-space:nowrap; border:0;
}

.form-foot{ display:flex; align-items:center; justify-content:space-between; gap:20px; margin-top:8px; flex-wrap:wrap; }
.form-msg{ font-size:12.5px; letter-spacing:.04em; min-height:1.2em; }
.form-msg.ok{ color:#5a7a2e; }
.form-msg.err{ color:#c0563f; }

.submit-btn{
  display:inline-flex; align-items:center; gap:30px;
  background:var(--ink); color:var(--paper); border:0; cursor:pointer;
  font-family:inherit; font-size:13px; letter-spacing:.14em; font-weight:500;
  padding:17px 30px; border-radius:2px; position:relative; overflow:hidden;
  transition:background .35s var(--ease);
  margin-left:auto;
}
.submit-btn svg{ transition:transform .4s var(--ease); }
.submit-btn:hover{ background:#000; }
.submit-btn:hover svg{ transform:translateX(6px); }
.submit-btn:disabled{ opacity:.55; cursor:not-allowed; }
.submit-btn[aria-busy="true"] span{ opacity:.6; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer{ background:var(--cream); border-top:1px solid var(--line); padding-block:clamp(40px,5vw,64px); }
.footer-inner{ display:flex; align-items:center; justify-content:space-between; gap:30px; flex-wrap:wrap; }
.footer__brand .copy{ font-size:11px; color:var(--muted); letter-spacing:.06em; margin-top:8px; }
.footer__nav{ display:flex; gap:clamp(18px,3vw,40px); }
.footer__nav a{ font-size:11.5px; letter-spacing:.16em; color:var(--ink-soft); transition:color .3s; }
.footer__nav a:hover{ color:var(--ink); }

/* ============================================================
   Reveal animation
   ============================================================ */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-in{ opacity:1; transform:none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:900px){
  .service{ grid-template-columns:70px minmax(0,1fr); row-gap:18px; }
  .service__tags{ grid-column:1 / -1; padding-left:70px; }
  .studio__inner,.company__inner,.contact__inner{ grid-template-columns:minmax(0,1fr); gap:34px; }
  .company__table{ margin-top:6px; }
}

@media (max-width:680px){
  body{ font-size:14px; }
  .nav-toggle{ display:flex; }
  .nav{
    position:fixed; inset:0; background:rgba(243,239,230,.97);
    backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
    flex-direction:column; align-items:center; justify-content:center;
    gap:34px; z-index:55;
    opacity:0; visibility:hidden; pointer-events:none;
    transition:opacity .4s var(--ease), visibility .4s var(--ease);
  }
  .nav.open{ opacity:1; visibility:visible; pointer-events:auto; }
  .nav a{ font-size:16px; letter-spacing:.16em; }

  .hero__inner{ padding-top:90px; }
  .hero__scroll{ display:none; }

  .field-row{ grid-template-columns:1fr; }
  .service{ grid-template-columns:48px minmax(0,1fr); column-gap:18px; }
  .service__tags{ padding-left:0; }
  .service__num{ font-size:34px; }

  .company__table .row{ grid-template-columns:1fr; gap:4px; padding-block:14px; }
  .company__table dt{ font-size:11px; }

  .footer-inner{ flex-direction:column; align-items:flex-start; gap:24px; }
  .footer__nav{ flex-wrap:wrap; row-gap:12px; }
  .submit-btn{ width:100%; justify-content:center; }
  .form-foot{ flex-direction:column; align-items:stretch; }
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
  .hero__title .char{ opacity:1; transform:none; }
  .reveal{ opacity:1; transform:none; }
}