@charset "UTF-8";
/* =========================================================
   株式会社Onomatopoeia コーポレートサイト
   ベース: 骨子案 v08（ニューモーフィズム × ラベンダー×グラデ）
   ========================================================= */

:root{
  --bg:#e6e4f0;
  --bg-deep:#d9d6e8;
  --tx:#5b5872;
  --tx-strong:#37344e;
  --tx-weak:#948fad;
  --violet:#7b5cf0;
  --blue:#4a8fe8;
  --grad:linear-gradient(135deg,#7b5cf0 0%,#4a8fe8 100%);
  --sh-dark:#c1bdd5;
  --sh-light:#ffffff;
  --radius:24px;
  --sidebar-w:325px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Shippori Mincho','Noto Serif JP','Hiragino Mincho ProN','Yu Mincho',serif;
  background:var(--bg);
  color:var(--tx);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* 極薄のノイズを全面に重ねて、淡いグラデーションのバンディング（縞模様）を消す */
body::after{
  content:"";position:fixed;inset:0;z-index:2000;pointer-events:none;
  opacity:.028;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:160px 160px;
}
.en{font-family:'Shippori Mincho','Noto Serif JP','Hiragino Mincho ProN','Yu Mincho',serif;}
a{color:inherit;}
.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

/* ===== neumorphic primitives ===== */
.nm-out{
  background:var(--bg);
  box-shadow:9px 9px 22px var(--sh-dark),-9px -9px 22px var(--sh-light);
  border-radius:var(--radius);
}
.nm-in{
  background:var(--bg);
  box-shadow:inset 6px 6px 12px var(--sh-dark),inset -6px -6px 12px var(--sh-light);
  border-radius:20px;
}

/* ===== layout ===== */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--bg);
  box-shadow:12px 0 30px rgba(193,189,213,.6);
  display:flex;flex-direction:column;
  padding:44px 32px 32px;
  z-index:60;
  overflow-y:auto;
}
.content{margin-left:var(--sidebar-w);min-width:0;}

/* ===== sidebar ===== */
.sb-logo{display:block;text-decoration:none;color:var(--tx-strong);}
.sb-name{font-weight:900;font-size:1.15rem;letter-spacing:.05em;line-height:1.5;}
.sb-name small{display:block;font-size:.6rem;font-weight:600;letter-spacing:.26em;margin-top:6px;}
.sb-nav{margin-top:54px;flex:1;}
.sb-nav ul{list-style:none;display:flex;flex-direction:column;gap:10px;}
.sb-nav a{
  display:flex;align-items:baseline;gap:14px;
  padding:14px 18px;border-radius:16px;
  text-decoration:none;color:var(--tx);
  transition:box-shadow .3s,color .3s;
  position:relative;
}
.sb-nav a .num{font-size:.62rem;letter-spacing:.14em;font-weight:700;color:var(--violet);}
.sb-nav a .label{font-size:.88rem;font-weight:700;letter-spacing:.1em;}
.sb-nav a .jp{font-size:.6rem;color:var(--tx-weak);margin-left:auto;letter-spacing:.14em;}
.sb-nav a:hover,.sb-nav a.active{
  color:var(--tx-strong);
  box-shadow:inset 5px 5px 10px var(--sh-dark),inset -5px -5px 10px var(--sh-light);
}
.sb-nav a.active::before{
  content:"";position:absolute;left:6px;top:50%;transform:translateY(-50%);
  width:4px;height:22px;border-radius:4px;background:var(--grad);
}
.sb-contact-btn{
  display:flex;align-items:center;justify-content:center;gap:10px;
  margin-top:26px;padding:17px 12px;border-radius:16px;
  text-decoration:none;
  background:var(--grad);color:#fff;
  font-weight:700;font-size:.85rem;letter-spacing:.12em;
  box-shadow:7px 7px 15px var(--sh-dark),-7px -7px 15px var(--sh-light);
  transition:box-shadow .25s,transform .25s,filter .25s;
}
.sb-contact-btn:hover{
  filter:brightness(1.08);transform:translateY(1px);
  box-shadow:3px 3px 8px var(--sh-dark),-3px -3px 8px var(--sh-light);
}
.sb-foot{margin-top:24px;font-size:.62rem;color:var(--tx-weak);letter-spacing:.08em;line-height:2;}

/* ===== mobile header ===== */
.m-header{display:none;}
.m-nav{display:none;}

/* ===== content blocks ===== */
.block{padding:110px clamp(30px,6vw,92px);}
.block-head{margin-bottom:56px;}
.block-head .tag{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 22px;border-radius:999px;
  font-size:.66rem;letter-spacing:.28em;font-weight:700;
  box-shadow:inset 4px 4px 8px var(--sh-dark),inset -4px -4px 8px var(--sh-light);
  margin-bottom:18px;
}
.block-head .tag::before{
  content:"";width:9px;height:9px;border-radius:50%;background:var(--grad);
}
.block-head h2{
  font-size:clamp(1.9rem,4vw,2.9rem);font-weight:800;letter-spacing:.1em;
  color:var(--tx-strong);line-height:1.2;
}
.block-head .jp-title{font-size:.78rem;letter-spacing:.24em;color:var(--tx-weak);font-weight:700;margin-top:10px;}

/* ===== hero ===== */
.hero{
  min-height:100vh;
  display:flex;flex-direction:column;justify-content:center;
  padding:120px clamp(30px,6vw,92px) 90px;
  position:relative;overflow:hidden;
}
/* スクロールしても動かない固定背景レイヤー */
.bg-orbs{
  position:fixed;inset:0;z-index:-1;
  pointer-events:none;overflow:hidden;
}
.hero-orb{
  position:absolute;border-radius:50%;
}
.hero-orb.o1{
  width:430px;height:430px;top:6%;right:-120px;
  background:var(--bg);
  box-shadow:20px 20px 46px var(--sh-dark),-20px -20px 46px var(--sh-light);
}
.hero-orb.o1::after{
  content:"";position:absolute;inset:14%;border-radius:50%;
  background:radial-gradient(circle at 42% 38%, rgba(123,92,240,.22), rgba(74,143,232,.14) 52%, rgba(74,143,232,0) 72%);
}
.hero-orb.o2{
  width:190px;height:190px;bottom:12%;right:24%;
  background:var(--bg);
  box-shadow:inset 12px 12px 26px var(--sh-dark),inset -12px -12px 26px var(--sh-light);
}
.hero-orb.o3{
  width:110px;height:110px;top:20%;right:38%;
  background:radial-gradient(circle at 45% 42%, rgba(123,92,240,.55), rgba(74,143,232,.38) 45%, rgba(74,143,232,0) 68%);
  animation:float 7s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0);}50%{transform:translateY(-18px);}}
.hero-inner{position:relative;z-index:1;}
.hero-label{
  display:inline-flex;align-items:center;gap:10px;
  padding:9px 24px;border-radius:999px;
  font-size:.68rem;letter-spacing:.3em;font-weight:700;color:var(--violet);
  box-shadow:inset 4px 4px 8px var(--sh-dark),inset -4px -4px 8px var(--sh-light);
  margin-bottom:36px;
}
.hero-label::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--grad);}
.hero h1{
  font-size:clamp(2rem,4.9vw,3.6rem);
  font-weight:900;color:var(--tx-strong);
  line-height:1.45;letter-spacing:.04em;
  margin-bottom:28px;
}
.hero p.lead{max-width:min(584px,calc(100% - 1em));font-size:.95rem;margin-bottom:46px;}
.btn-row{display:flex;gap:20px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:17px 38px;border-radius:18px;
  text-decoration:none;font-weight:700;font-size:.88rem;letter-spacing:.1em;
  background:var(--bg);color:var(--tx-strong);
  box-shadow:7px 7px 16px var(--sh-dark),-7px -7px 16px var(--sh-light);
  transition:box-shadow .22s,transform .22s;
}
.btn:hover{
  box-shadow:inset 6px 6px 12px var(--sh-dark),inset -6px -6px 12px var(--sh-light);
  transform:translateY(1px);
}
.btn.grad{
  background:var(--grad);color:#fff;
}
.btn.grad:hover{
  filter:brightness(1.08);
  box-shadow:3px 3px 8px var(--sh-dark),-3px -3px 8px var(--sh-light);
}
.btn svg{width:16px;height:16px;}
/* ===== mission ===== */
.mission-card{padding:clamp(38px,6vw,70px);}
.mission-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;}
.mission-copy h3{
  font-size:clamp(1.25rem,2.6vw,1.85rem);font-weight:900;color:var(--tx-strong);
  line-height:2;letter-spacing:.05em;margin-bottom:26px;
}
.mission-copy p{font-size:.92rem;}
.mission-copy p + p{margin-top:1.2em;}
.mission-visual{
  aspect-ratio:1/1;max-width:380px;width:100%;justify-self:center;position:relative;
}
.mission-visual .disc{
  position:absolute;inset:6%;border-radius:50%;
  box-shadow:inset 8px 8px 18px var(--sh-dark),inset -8px -8px 18px var(--sh-light);
}
.mission-visual .mv{
  position:absolute;inset:0;width:100%;height:100%;display:block;overflow:visible;
}

/* ===== business ===== */
.biz-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;}
.biz-card{
  padding:40px 36px;display:flex;flex-direction:column;gap:16px;
  transition:transform .3s;position:relative;overflow:hidden;
}
.biz-card::before{
  content:"";position:absolute;top:0;left:36px;right:36px;height:4px;border-radius:0 0 6px 6px;
  background:var(--grad);opacity:.75;
}
.biz-card:hover{transform:translateY(-5px);}
.biz-head{display:flex;align-items:center;gap:16px;}
.biz-num{
  width:62px;height:62px;flex:0 0 62px;border-radius:18px;
  display:grid;place-items:center;
  box-shadow:inset 5px 5px 11px var(--sh-dark),inset -5px -5px 11px var(--sh-light);
  font-weight:800;font-size:1.15rem;letter-spacing:.04em;
}
.biz-card h4{font-size:1.1rem;font-weight:900;color:var(--tx-strong);line-height:1.5;}
.biz-card h4 small{display:block;font-size:.62rem;font-weight:700;letter-spacing:.24em;color:var(--tx-weak);margin-top:4px;}
.biz-card p{font-size:.88rem;}
/* ===== business visuals ===== */
.biz-viz{
  margin-top:auto;padding-top:22px;
  border-top:1.5px solid rgba(123,92,240,.15);
}

/* 01: サービスアイコングリッド（04でも流用） */
.svc7{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:22px 6px;}
.svc7 li{display:flex;flex-direction:column;align-items:center;gap:9px;text-align:center;}
.svc7 svg{width:28px;height:28px;}
.svc7 span{
  font-size:.6rem;font-weight:600;color:var(--tx);
  line-height:1.45;letter-spacing:.02em;
}

/* 02: ファネル */
.funnel{display:flex;flex-direction:column;align-items:center;gap:8px;padding:6px 0 2px;}
.funnel div{
  color:#fff;font-size:.72rem;font-weight:700;letter-spacing:.18em;
  padding:10px 0;text-align:center;border-radius:10px;line-height:1;
}
.funnel .f1{width:96%;background:linear-gradient(135deg,rgba(123,92,240,.5),rgba(74,143,232,.5));}
.funnel .f2{width:70%;background:linear-gradient(135deg,rgba(123,92,240,.72),rgba(74,143,232,.72));}
.funnel .f3{width:46%;background:var(--grad);box-shadow:3px 3px 10px rgba(123,92,240,.3);}

/* 03: 縦型ステップタイムライン */
.steps5{list-style:none;position:relative;display:flex;flex-direction:column;}
.steps5::before{
  content:"";position:absolute;left:14px;top:18px;bottom:18px;width:2px;border-radius:2px;
  background:var(--grad);opacity:.25;
}
.steps5 li{display:flex;align-items:center;gap:15px;padding:8px 0;position:relative;}
.st-no{
  width:30px;height:30px;flex:0 0 30px;border-radius:50%;
  background:var(--grad);color:#fff;
  font-size:.78rem;font-weight:700;
  display:grid;place-items:center;
  box-shadow:3px 3px 8px rgba(123,92,240,.25);
}
.st-tx{font-size:.82rem;font-weight:700;color:var(--tx-strong);letter-spacing:.04em;}

/* 04: 分析 → 設計 → 完成 のレイヤーフロー */
.b4-stage{
  display:flex;align-items:center;gap:14px;
  padding:12px 16px;border-radius:14px;
  background:rgba(123,92,240,.06);
}
.b4-stage .svc7{flex:1;gap:12px 4px;}
.b4-final{
  background:linear-gradient(135deg,rgba(123,92,240,.13),rgba(74,143,232,.13));
}
.b4-arrow{display:flex;justify-content:center;margin:4px 0;}
.b4-arrow svg{width:17px;height:17px;}
.b4-two{grid-template-columns:repeat(2,1fr);}
.b4-grid{grid-template-columns:repeat(4,1fr);}
.b4-one{grid-template-columns:1fr;}

/* ===== company ===== */
.company-card{padding:clamp(32px,5vw,56px);}
table.company{width:100%;border-collapse:separate;border-spacing:0 14px;}
table.company th,table.company td{
  text-align:left;padding:16px 24px;font-size:.9rem;vertical-align:top;
}
table.company th{
  width:180px;font-weight:700;color:var(--violet);letter-spacing:.14em;font-size:.76rem;
  border-radius:14px 0 0 14px;
  box-shadow:inset 4px 4px 8px var(--sh-dark),inset -4px -4px 8px var(--sh-light);
}
table.company td{
  color:var(--tx-strong);
  border-radius:0 14px 14px 0;
  box-shadow:inset 4px 4px 8px var(--sh-dark),inset -4px -4px 8px var(--sh-light);
}
table.company td a{color:var(--violet);text-decoration:none;font-weight:700;}
table.company td a:hover{text-decoration:underline;}

/* ===== contact ===== */
.contact-card{padding:clamp(42px,7vw,80px);text-align:center;position:relative;overflow:hidden;}
.contact-card::before{
  content:"";position:absolute;top:-130px;right:-130px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle, rgba(123,92,240,.16), rgba(74,143,232,.10) 50%, rgba(74,143,232,0) 70%);
}
.contact-mark{
  width:76px;height:76px;margin:0 auto 28px;border-radius:24px;
  display:grid;place-items:center;position:relative;
  background:var(--grad);
  box-shadow:8px 8px 20px rgba(123,92,240,.32),-6px -6px 14px var(--sh-light);
}
.contact-mark svg{width:34px;height:34px;}
.contact-card h3{
  font-size:clamp(1.15rem,2.8vw,1.65rem);font-weight:900;color:var(--tx-strong);
  margin-bottom:18px;letter-spacing:.05em;line-height:1.9;position:relative;
}
.contact-card p{max-width:560px;margin:0 auto 40px;font-size:.9rem;position:relative;}
.mail-chip{
  display:inline-block;margin-top:28px;padding:10px 26px;border-radius:999px;
  font-size:.8rem;letter-spacing:.08em;color:var(--tx-weak);
  box-shadow:inset 4px 4px 8px var(--sh-dark),inset -4px -4px 8px var(--sh-light);
}

/* ===== footer ===== */
.footer{
  padding:52px clamp(30px,6vw,92px) 42px;
  background:var(--bg-deep);
  display:flex;flex-direction:column;align-items:center;gap:22px;text-align:center;
}
.footer .f-logo{font-weight:900;color:var(--tx-strong);letter-spacing:.08em;}
.footer .f-logo small{display:block;font-size:.6rem;font-weight:700;letter-spacing:.26em;margin-top:4px;}
.footer-nav{display:flex;gap:26px;flex-wrap:wrap;justify-content:center;}
.footer-nav a{font-size:.74rem;color:var(--tx);text-decoration:none;letter-spacing:.16em;font-weight:600;}
.footer-nav a:hover{color:var(--violet);}
.copyright{font-size:.66rem;color:var(--tx-weak);letter-spacing:.14em;}

/* ===== reveal ===== */
.rv{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease;}
.rv.on{opacity:1;transform:none;}
.rv.d1{transition-delay:.12s;}
.rv.d2{transition-delay:.24s;}
.rv.d3{transition-delay:.36s;}

/* ===== reduced motion ===== */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  html{scroll-behavior:auto;}
  .rv{opacity:1;transform:none;}
}

/* ===== responsive ===== */
@media (max-width:1120px){
  :root{--sidebar-w:272px;}
  .sidebar{padding:36px 22px 26px;}
  .mission-grid{grid-template-columns:1fr;gap:48px;}
}
@media (max-width:860px){
  .sidebar{display:none;}
  .content{margin-left:0;}
  .m-header{
    display:flex;position:fixed;top:0;left:0;right:0;z-index:100;
    background:rgba(230,228,240,.9);
    backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
    align-items:center;justify-content:space-between;
    padding:12px 18px;
    box-shadow:0 6px 20px rgba(193,189,213,.55);
  }
  .m-logo{display:flex;align-items:center;text-decoration:none;color:var(--tx-strong);padding:10px 4px;}
  .m-logo b{font-size:.95rem;letter-spacing:.04em;font-weight:900;}
  .m-toggle{
    width:46px;height:46px;border:none;border-radius:14px;cursor:pointer;position:relative;
    background:var(--bg);
    box-shadow:5px 5px 10px var(--sh-dark),-5px -5px 10px var(--sh-light);
  }
  .m-toggle span{position:absolute;left:13px;right:13px;height:2px;background:var(--tx-strong);border-radius:2px;transition:.3s;}
  .m-toggle span:nth-child(1){top:16px;}
  .m-toggle span:nth-child(2){top:22px;}
  .m-toggle span:nth-child(3){top:28px;}
  .m-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .m-toggle.open span:nth-child(2){opacity:0;}
  .m-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
  .m-nav{
    display:block;position:fixed;top:76px;left:16px;right:16px;z-index:99;
    background:var(--bg);border-radius:24px;
    box-shadow:14px 14px 30px var(--sh-dark),-14px -14px 30px var(--sh-light);
    padding:16px;
    opacity:0;pointer-events:none;transform:translateY(-12px);
    transition:opacity .3s,transform .3s;
  }
  .m-nav.open{opacity:1;pointer-events:auto;transform:none;}
  .m-nav ul{list-style:none;}
  .m-nav a{
    display:flex;align-items:baseline;gap:12px;
    padding:14px 18px;border-radius:16px;
    color:var(--tx);text-decoration:none;font-weight:700;letter-spacing:.1em;font-size:.9rem;
  }
  .m-nav a small{color:var(--violet);font-size:.64rem;letter-spacing:.14em;font-weight:700;}
  .m-nav a:active{box-shadow:inset 4px 4px 8px var(--sh-dark),inset -4px -4px 8px var(--sh-light);}
  .hero{min-height:auto;padding-top:140px;}
  .hero-orb.o1{width:250px;height:250px;right:-90px;}
  .hero-orb.o2{display:none;}
  .biz-grid{grid-template-columns:1fr;}
  .block{padding:84px 24px;}
  table.company{border-spacing:0;}
  table.company tr{display:block;margin-bottom:14px;}
  table.company tr:last-child{margin-bottom:0;}
  table.company th{display:block;width:100%;border-radius:14px 14px 0 0;padding:12px 22px 8px;}
  table.company td{display:block;border-radius:0 0 14px 14px;padding:12px 22px 16px;}
}