/* ============================================================
   株式会社LEVEL1 コーポレートサイト（D案：nayu参考・クリーン企業系）
   共通スタイル
   ============================================================ */
:root{
  --ink:#111418; --slate:#617589; --blue:#137fec; --blue-d:#0f6fd0; --green:#10b981;
  --line:#dbe0e6; --bg:#ffffff; --bg2:#f6f7f8; --bg3:#f0f2f4; --dark:#1a2530;
  --sans:'Noto Sans JP',system-ui,-apple-system,sans-serif; --en:'Inter',sans-serif;
  --maxw:1180px; --pad:clamp(20px,5vw,56px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.85;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.todo{display:inline-block;font-size:.7em;color:#b23b3b;background:#fdeaea;border:1px dashed #e0a0a0;border-radius:4px;padding:0 6px;margin-left:4px}
.eyebrow{font-family:var(--en);font-size:.78rem;font-weight:700;letter-spacing:.18em;color:var(--blue);text-transform:uppercase}
svg.i{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:inline-block;vertical-align:middle}
svg.i.fill{fill:currentColor;stroke:none}

.sec{padding-block:clamp(58px,9vw,116px)}
.sec-alt{background:var(--bg2);border-block:1px solid var(--line)}
.sec-head{margin-bottom:clamp(32px,5vw,54px)}
.sec-head h2{font-size:clamp(1.7rem,4vw,2.5rem);font-weight:900;letter-spacing:-.01em;margin-top:8px}
.sec-head p{color:var(--slate);margin-top:12px;max-width:640px}

/* Header */
.hd{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{font-family:var(--en);font-weight:800;font-size:1.3rem;letter-spacing:-.02em}
.logo b{color:var(--blue)}
.nav{display:flex;gap:26px;align-items:center}
.nav a{font-size:.88rem;font-weight:500;color:var(--slate)}
.nav a:hover{color:var(--ink)}
.nav .lang{font-family:var(--en);font-size:.76rem;font-weight:700;border:1px solid var(--line);border-radius:999px;padding:4px 12px;color:var(--slate)}
.nav .cta{background:var(--blue);color:#fff;padding:9px 18px;border-radius:8px;font-weight:700}
.nav .cta:hover{background:var(--blue-d)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{width:24px;height:2px;background:var(--ink);transition:.3s}
@media(max-width:940px){
  .nav{position:fixed;inset:66px 0 auto 0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);max-height:0;overflow:hidden;transition:max-height .35s}
  .nav.open{max-height:520px}
  .nav a{width:100%;text-align:center;padding:15px;border-bottom:1px solid var(--line)}
  .nav .lang{border-radius:0;border:0}
  .nav .cta{border-radius:0}
  .nav-toggle{display:flex}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.95rem;padding:13px 26px;border-radius:10px;transition:.2s}
.btn-p{background:var(--ink);color:#fff} .btn-p:hover{background:var(--blue);transform:translateY(-2px)}
.btn-o{border:1.5px solid var(--line);color:var(--ink)} .btn-o:hover{border-color:var(--ink)}
.btn-w{background:#fff;color:var(--blue)} .btn-w:hover{transform:translateY(-2px)}
.btns{display:flex;gap:14px;flex-wrap:wrap}

/* Hero with image */
.hero{position:relative;min-height:min(88vh,720px);display:flex;align-items:flex-end;overflow:hidden;color:#fff}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg svg{width:100%;height:100%;display:block}
.hero-bg img{width:100%;height:100%;object-fit:cover;display:block}
.hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(10,20,15,.15) 0%,rgba(10,18,24,.55) 62%,rgba(10,18,24,.82) 100%)}
.hero-in{position:relative;z-index:2;padding-block:clamp(48px,8vw,88px);width:100%}
.hero .eyebrow{color:#8fe3c8}
.hero h1{font-size:clamp(2.2rem,5.6vw,4rem);font-weight:900;line-height:1.24;letter-spacing:-.01em;margin:16px 0 20px;text-shadow:0 2px 20px rgba(0,0,0,.25)}
.hero h1 .hl{color:#7fd8ff}
.hero .lead{color:#e7edf1;font-size:clamp(1rem,1.5vw,1.15rem);max-width:600px;text-shadow:0 1px 12px rgba(0,0,0,.3)}
.hero .btns{margin-top:30px}
.hero .btn-o{border-color:rgba(255,255,255,.6);color:#fff} .hero .btn-o:hover{background:#fff;color:var(--ink)}

/* Greeting */
.greet{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(28px,5vw,56px);align-items:center}
@media(max-width:820px){.greet{grid-template-columns:1fr}}
.greet-photo{aspect-ratio:4/5;border-radius:18px;overflow:hidden;background:linear-gradient(160deg,#e3e9ef,#cfd8e2)}
.greet-photo img{width:100%;height:100%;object-fit:cover;object-position:center 12%}
.greet h2{font-size:clamp(1.6rem,3.4vw,2.4rem);font-weight:900;line-height:1.4;margin-bottom:20px}
.greet h2 .hl{color:var(--blue)}
.greet p{color:var(--slate);margin-bottom:14px}
.greet .by{font-family:var(--en);font-weight:700;margin-top:20px;font-size:.9rem}
.greet .by span{display:block;color:var(--slate);font-weight:400;font-size:.8rem;font-family:var(--sans)}

/* Feature (1枚ずつ：full-width alternating) */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:center;padding-block:clamp(40px,6vw,72px);border-bottom:1px solid var(--line)}
.feature:last-child{border-bottom:0}
.feature.rev .feature-visual{order:2}
@media(max-width:860px){.feature{grid-template-columns:1fr;padding-block:36px} .feature.rev .feature-visual{order:0}}
.feature-visual{aspect-ratio:4/3;border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#eef4f8;font-weight:800;letter-spacing:.08em;font-size:clamp(1.4rem,3vw,2rem);text-align:center;padding:20px}
.feature-visual small{font-size:.5em;opacity:.75;margin-top:10px;font-weight:500;letter-spacing:.02em}
.feature .num{font-family:var(--en);font-size:.8rem;font-weight:700;letter-spacing:.14em;color:var(--blue)}
.feature h3{font-size:clamp(1.5rem,3.2vw,2.1rem);font-weight:900;margin:8px 0 16px}
.feature p{color:var(--slate);margin-bottom:14px}
.feature .note{font-size:.84rem;font-weight:700;color:var(--green);border-left:3px solid var(--green);padding-left:12px}
.flist{list-style:none;margin-top:8px}
.flist li{padding:6px 0 6px 24px;position:relative;color:var(--slate);font-size:.92rem}
.flist li::before{content:"";position:absolute;left:2px;top:14px;width:9px;height:5px;border-left:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(-45deg)}
/* visual themes */
.v-import{background:linear-gradient(150deg,#1c3a4a,#2a6a7a)}
.v-d2c{background:linear-gradient(150deg,#23303b,#3a4a3a)}
.v-amazon{background:linear-gradient(150deg,#2a2f3a,#3a4560)}
.v-yad{background:linear-gradient(150deg,#24303b,#3a4a3a)}
.v-ani{background:linear-gradient(150deg,#2a343d,#3a3550)}
.v-solofis{background:linear-gradient(150deg,#1f3348,#2f6a8a)}

/* Timeline (会社の歴史) */
.timeline{position:relative;max-width:760px;margin-inline:auto;padding-left:28px}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl{position:relative;padding:0 0 26px 24px}
.tl::before{content:"";position:absolute;left:-28px;top:5px;width:14px;height:14px;border-radius:50%;background:var(--blue);border:3px solid #fff;box-shadow:0 0 0 2px var(--blue)}
.tl .yr{font-family:var(--en);font-weight:800;color:var(--blue);font-size:.95rem}
.tl .ev{font-size:.95rem;margin-top:2px}

/* Works (CF) */
.works-banner{display:flex;gap:34px;flex-wrap:wrap;justify-content:center;margin-bottom:36px;padding:26px;background:#fff;border:1px solid var(--line);border-radius:16px}
.works-banner div{text-align:center}
.works-banner b{display:block;font-family:var(--en);font-size:clamp(1.7rem,3.6vw,2.6rem);font-weight:800;color:var(--ink);letter-spacing:-.02em}
.works-banner .u{font-size:.5em;font-weight:700}
.works-banner span{font-size:.8rem;color:var(--slate)}
.works{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.works{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.works{grid-template-columns:1fr}}
.work{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s;display:block}
.work:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(17,20,24,.09);border-color:var(--blue)}
.work-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg3)}
.work-thumb img{width:100%;height:100%;object-fit:cover}
.work-body{padding:16px}
.work-body h4{font-size:.9rem;line-height:1.5;height:4.05em;overflow:hidden;margin-bottom:12px}
.work-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;border-top:1px solid var(--line);padding-top:12px}
.work-stats b{font-family:var(--en);font-weight:800;font-size:.88rem;color:var(--blue);display:block;letter-spacing:-.02em}
.work-stats i{font-style:normal;font-size:.65em}
.work-stats span{font-size:.62rem;color:var(--slate)}

/* Company info */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,60px)}
@media(max-width:820px){.about{grid-template-columns:1fr}}
.cinfo .row{display:grid;grid-template-columns:30px 110px 1fr;gap:12px;align-items:start;padding:15px 0;border-bottom:1px solid var(--line)}
.cinfo .row svg{color:var(--blue);width:20px;height:20px}
.cinfo .row dt{font-weight:700;font-size:.86rem;color:var(--slate)}
.cinfo .row dd{font-size:.92rem}

/* Contact CTA */
.cta-sec{background:var(--blue);color:#fff;text-align:center}
.cta-sec .eyebrow{color:#dbeafe}
.cta-sec h2{font-size:clamp(1.6rem,3.6vw,2.4rem);font-weight:900;margin:8px 0 14px}
.cta-sec p{color:#dbeafe;margin-bottom:26px}

/* Footer */
.ft{background:var(--dark);color:#aeb9c4;padding:56px 0 28px}
.ft-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
@media(max-width:700px){.ft-in{grid-template-columns:1fr}}
.ft h4{color:#fff;font-size:.82rem;letter-spacing:.08em;margin-bottom:14px}
.ft a{display:block;color:#aeb9c4;font-size:.88rem;padding:4px 0}
.ft a:hover{color:#fff}
.ft .logo{color:#fff;margin-bottom:10px}
.cp{grid-column:1/-1;border-top:1px solid #2a343d;margin-top:22px;padding-top:20px;font-family:var(--en);font-size:.78rem;color:#6b7681}

/* reveal */
html.anim .reveal{opacity:0;transform:translateY(20px);transition:opacity .6s,transform .6s}
html.anim .reveal.vis{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* --- feature visual scenes / greet svg (single-source) --- */
.feature-visual{position:relative;overflow:hidden;padding:0}
.feature-visual svg{position:absolute;inset:0;width:100%;height:100%}
.feature-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.fv-tag{position:absolute;left:16px;bottom:14px;z-index:2;font-family:var(--en);font-weight:800;letter-spacing:.12em;color:#fff;font-size:.85rem;text-shadow:0 1px 8px rgba(0,0,0,.4)}
.greet-photo{padding:0;overflow:hidden}
.greet-photo svg{width:100%;height:100%}

.feature-visual.logo{background:#fff;border:1px solid var(--line)}
.feature-visual.logo img{object-fit:contain;padding:clamp(24px,5vw,56px)}

/* Contact form (Web3Forms) */
.cform{max-width:640px;margin:26px auto 0;background:#fff;border-radius:16px;padding:clamp(24px,4vw,36px);text-align:left;box-shadow:0 22px 55px rgba(10,20,30,.22)}
.cform label{display:block;margin-bottom:16px;font-size:.84rem;font-weight:700;color:var(--ink)}
.cform label>span{display:block;margin-bottom:6px}
.cform label em{color:#e5484d;font-style:normal;margin-left:3px}
.cform input,.cform select,.cform textarea{width:100%;font-family:inherit;font-weight:400;font-size:.95rem;padding:11px 14px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink)}
.cform input:focus,.cform select:focus,.cform textarea:focus{outline:2px solid var(--blue);outline-offset:1px;border-color:var(--blue)}
.cform textarea{resize:vertical}
.cf-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:560px){.cf-grid{grid-template-columns:1fr}}
.cf-submit{width:100%;justify-content:center;margin-top:6px}
.cf-note{font-size:.8rem;color:var(--slate);text-align:center;margin-top:12px;font-weight:400}