/* =====================================================================
   WHITE ENGINEER — style.css  (Bright Pixel / AI Landing)
   ===================================================================== */
:root{
  --bg:#eaf6fb; --bg2:#ffffff; --soft:#f2fafd;
  --ink:#14384e; --ink2:#5f7d90; --dim:#8aa6b5;
  --cy:#22b7d8; --cy-d:#1892b2; --cy-l:#e2f6fb; --cy-line:#bfe6f1;
  --navy:#122f3f;
  --line:#d5eaf2; --line2:#c2e2ee;
  --yellow:#ffcb3d; --orange:#ff9a3d; --purple:#a678ff;
  --round:'M PLUS Rounded 1c',sans-serif;
  --sans:'Noto Sans JP',sans-serif;
  --pixel:'DotGothic16',sans-serif;
  --sh:0 8px 22px rgba(30,120,150,.10);
  --sh-hi:0 14px 30px rgba(30,120,150,.18);
  --ease:cubic-bezier(.2,.8,.25,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--round);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased;
  background:var(--bg);
  background-image:radial-gradient(rgba(120,180,205,.28) 1.3px,transparent 1.4px);background-size:22px 22px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--cy);color:#fff}
.cy{color:var(--cy)}
.pc{display:inline}
.nowrap{white-space:nowrap}

/* ドット絵カーソル */
@media(pointer:fine){
  body{cursor:url("cursor-hand.svg") 9 2, auto}
  a,button,.btn,.feat-card,.tool-card2,.car-btn{cursor:url("cursor-point.svg") 9 2, pointer}
}

/* ===== HEADER ===== */
.hd{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:24px;
  padding:12px clamp(16px,4vw,44px);background:rgba(255,255,255,.9);backdrop-filter:blur(10px);
  border-bottom:2px solid var(--line)}
.hd-logo{display:flex;align-items:center;gap:11px}
.hd-logo-badge{width:40px;height:40px;border:2px solid var(--ink);border-radius:9px;overflow:hidden;background:#0e1c28;flex:0 0 auto}
.hd-logo-badge img{width:100%;height:100%;object-fit:cover;image-rendering:pixelated}
.hd-logo-txt{font-family:var(--pixel);font-size:19px;letter-spacing:1px;color:var(--ink)}
.hd-nav{display:flex;gap:28px;margin-left:14px;font-weight:700;font-size:15.5px}
.hd-nav a{color:var(--ink);padding:6px 2px;position:relative;transition:.2s}
.hd-nav a:hover{color:var(--cy)}
.hd-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;background:var(--cy);border-radius:2px;transform:scaleX(0);transition:.2s}
.hd-nav a:hover::after{transform:scaleX(1)}
.hd-login{margin-left:auto;font-weight:800;font-size:14px;color:var(--ink);border:2px solid var(--ink);
  border-radius:11px;padding:10px 18px;background:#fff;box-shadow:0 3px 0 var(--ink);transition:.15s var(--ease)}
.hd-login:hover{transform:translateY(2px);box-shadow:0 1px 0 var(--ink);color:var(--cy)}
.hd-login .ar{color:var(--cy)}
.hd-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;margin-left:auto}
.hd-burger span{width:26px;height:3px;background:var(--ink);border-radius:2px}

/* ===== HERO ===== */
.hero{position:relative;overflow:hidden;padding:clamp(30px,5vw,60px) clamp(16px,4vw,44px) clamp(50px,7vw,90px);
  background:linear-gradient(180deg,#eef8fc 0%,#dff1f8 100%)}
.hero-deco{position:absolute;inset:0;pointer-events:none;z-index:0}
.cloud{position:absolute;width:120px;opacity:.9;filter:drop-shadow(0 4px 6px rgba(120,170,190,.2))}
.cloud.c1{top:12%;left:32%}
.cloud.c2{top:30%;left:6%;width:90px;opacity:.75}
.skyline{position:absolute;bottom:0;left:0;width:100%;height:130px;opacity:.7}
.hero-inner{position:relative;z-index:1;max-width:1160px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.hero-h1{font-family:var(--round);font-weight:900;font-size:clamp(34px,5.6vw,64px);line-height:1.18;letter-spacing:.5px;color:var(--ink)}
.hero-lead{margin:22px 0 30px;font-weight:500;font-size:clamp(15px,1.7vw,18px);color:var(--ink2)}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}

.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--round);font-weight:800;
  border-radius:14px;transition:.15s var(--ease);white-space:nowrap}
.btn-lg{font-size:17px;padding:15px 28px}
.btn-cyan{background:linear-gradient(180deg,#45cfe8,#1fa8c8);color:#fff;border:2px solid var(--cy-d);
  box-shadow:0 5px 0 var(--cy-d),0 10px 18px rgba(31,168,200,.3)}
.btn-cyan:hover{transform:translateY(3px);box-shadow:0 2px 0 var(--cy-d),0 6px 12px rgba(31,168,200,.3)}
.btn-ghost{background:#fff;color:var(--ink);border:2px solid var(--ink);box-shadow:0 5px 0 var(--ink)}
.btn-ghost:hover{transform:translateY(3px);box-shadow:0 2px 0 var(--ink);color:var(--cy)}
.btn .chev{font-size:1.2em;line-height:1}
.btn .play{font-size:.75em}

.hero-art{position:relative;display:flex;justify-content:center;align-items:flex-end;min-height:340px}
.hero-mascot{position:relative;width:clamp(220px,30vw,380px)}
.hero-mascot img{width:100%;height:auto;filter:drop-shadow(0 16px 24px rgba(40,120,150,.25))}
.hero-mascot .c-smile{position:absolute;inset:0;opacity:0;transition:opacity .16s}
.hero-mascot:hover .c-smile{opacity:1}
.hero-mascot:hover .c-normal{opacity:0}
.mascot-shadow{position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);width:70%;height:22px;
  background:radial-gradient(ellipse,rgba(40,120,150,.22),transparent 70%);z-index:-1}
.hero-bubble{position:absolute;top:6%;right:-2%;z-index:2;background:#fff;border:2px solid var(--ink);
  border-radius:16px;padding:14px 18px;font-weight:800;font-size:14.5px;line-height:1.5;color:var(--ink);
  box-shadow:0 6px 0 rgba(20,56,78,.12)}
.hero-bubble::after{content:"";position:absolute;left:-10px;top:36px;width:16px;height:16px;background:#fff;
  border-left:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:rotate(45deg)}

/* ===== SECTION 共通 ===== */
.sec{max-width:1160px;margin:0 auto;padding:clamp(50px,7vw,84px) clamp(16px,4vw,44px)}
.sec-title{text-align:center;font-family:var(--round);font-weight:900;font-size:clamp(22px,3.4vw,32px);color:var(--ink);
  display:flex;align-items:center;justify-content:center;gap:14px;margin-bottom:40px}
.sec-title .spk{color:var(--cy);font-size:.7em}
.sec-title2{text-align:center;font-family:var(--round);font-weight:900;font-size:clamp(20px,3.2vw,30px);color:var(--ink);margin-bottom:44px}
.sec-title2 .cy{font-size:1.3em;vertical-align:-2px}

/* ===== FEATURES ===== */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat-card{display:flex;flex-direction:column;background:#fff;border:2px solid var(--line2);border-radius:18px;
  padding:24px 20px;box-shadow:var(--sh);transition:.2s var(--ease)}
.feat-card:hover{transform:translateY(-6px);border-color:var(--cy);box-shadow:var(--sh-hi)}
.fc-ic{width:62px;height:62px;display:grid;place-items:center;background:var(--cy-l);border:2px solid var(--cy-line);
  border-radius:14px;margin-bottom:16px}
.fc-ic svg{width:34px;height:34px}
.fc-head{display:flex;align-items:center;gap:8px;font-weight:900;font-size:18px;color:var(--ink);margin-bottom:8px}
.fc-desc{font-family:var(--sans);color:var(--ink2);font-size:13px;line-height:1.7;flex:1}
.fc-btn{margin-top:18px;display:flex;align-items:center;justify-content:center;gap:8px;font-weight:800;font-size:14px;
  color:#fff;background:linear-gradient(180deg,#45cfe8,#1fa8c8);border:2px solid var(--cy-d);border-radius:11px;
  padding:11px;box-shadow:0 4px 0 var(--cy-d);transition:.15s var(--ease)}
.feat-card:hover .fc-btn{transform:translateY(2px);box-shadow:0 2px 0 var(--cy-d)}

/* ===== STEPS ===== */
.sec-steps{background:#fff;max-width:none;border-top:2px solid var(--line);border-bottom:2px solid var(--line)}
.steps{max-width:1080px;margin:0 auto;display:flex;align-items:stretch;justify-content:center;gap:14px}
.step{flex:1;background:var(--soft);border:2px solid var(--line2);border-radius:18px;padding:22px 18px;position:relative}
.step-no{position:absolute;top:-16px;left:20px;font-family:var(--pixel);font-size:24px;color:var(--cy);
  background:#fff;border:2px solid var(--cy-line);border-radius:9px;padding:2px 10px}
.step-body{text-align:center;padding-top:6px}
.step-body h3{font-weight:800;font-size:15px;color:var(--ink);margin-bottom:16px;min-height:2.4em;display:flex;align-items:center;justify-content:center}
.step-ill{min-height:96px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.step-ill.sns{gap:12px}
.sns-chip{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;color:#fff}
.sns-chip svg{width:30px;height:30px}
.sns-chip.yt{background:#ff0033}.sns-chip.tk{background:#111}.sns-chip.ig{background:linear-gradient(45deg,#f09433,#dc2743,#bc1888)}
.step-ill.browser{width:100%}
.browser{flex-direction:column}
.bw-bar{width:150px;height:20px;background:#eef4f7;border:2px solid var(--line2);border-bottom:0;border-radius:8px 8px 0 0;display:flex;align-items:center;gap:5px;padding:0 8px}
.bw-bar i{width:7px;height:7px;border-radius:50%;background:#cfe0e8}
.bw-screen{width:150px;height:78px;background:#fff;border:2px solid var(--line2);border-radius:0 0 8px 8px;display:grid;place-items:center;overflow:hidden}
.bw-screen img{width:52px;image-rendering:pixelated}
.step-ill.spark img{width:88px;image-rendering:pixelated;filter:drop-shadow(0 6px 10px rgba(40,120,150,.2))}
.step-body p{font-family:var(--sans);font-size:12.5px;color:var(--ink2)}
.step-arrow{align-self:center;font-size:26px;color:var(--cy);font-weight:900}

/* ===== ABOUT / STATS ===== */
.about-card{background:#fff;border:2px solid var(--line2);border-radius:24px;box-shadow:var(--sh);
  padding:clamp(24px,3vw,40px);display:grid;grid-template-columns:auto 1.4fr 1fr;gap:clamp(20px,3vw,40px);align-items:center}
.about-mascot img{width:clamp(120px,13vw,180px);image-rendering:pixelated;filter:drop-shadow(0 10px 16px rgba(40,120,150,.2))}
.about-h{font-weight:900;font-size:clamp(20px,2.6vw,27px);color:var(--ink);margin-bottom:14px;display:flex;flex-wrap:wrap;gap:10px;align-items:baseline}
.about-h .wordmark{font-family:var(--pixel);font-size:.86em;letter-spacing:1px}
.about-txt{font-family:var(--sans);color:var(--ink2);font-size:14px;margin-bottom:22px}
.stat-row{display:flex;gap:12px;flex-wrap:wrap}
.stat{flex:1;min-width:110px;background:var(--soft);border:2px solid var(--line2);border-radius:14px;padding:14px 10px;text-align:center}
.stat-ic svg{width:26px;height:26px}
.stat b{display:block;font-weight:900;font-size:19px;color:var(--cy);margin:4px 0 2px}
.stat span{font-family:var(--sans);font-size:11px;color:var(--ink2)}
.trust{background:var(--cy-l);border:2px solid var(--cy-line);border-radius:18px;padding:22px}
.trust h3{text-align:center;font-weight:900;font-size:16px;color:var(--ink);margin-bottom:14px}
.trust ul{list-style:none;display:grid;gap:10px;margin-bottom:16px}
.trust li{display:flex;align-items:center;gap:9px;font-weight:700;font-size:13.5px;color:var(--ink)}
.trust li svg{width:18px;height:18px;flex:0 0 auto}
.medals{display:flex;justify-content:center;gap:14px}
.medals svg{width:52px;height:52px}

/* ===== LATEST TOOLS ===== */
.latest-head{display:flex;align-items:center;justify-content:center;position:relative;margin-bottom:36px}
.latest-head .sec-title{margin:0}
.see-all{position:absolute;right:0;font-weight:800;font-size:14px;color:var(--cy)}
.latest-wrap{display:flex;align-items:center;gap:10px}
.latest-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;flex:1}
.tool-card2{position:relative;display:flex;flex-direction:column;background:#fff;border:2px solid var(--line2);
  border-radius:18px;padding:22px 18px;box-shadow:var(--sh);transition:.2s var(--ease)}
.tool-card2.soon{opacity:.6}
.tool-card2:not(.soon):hover{transform:translateY(-6px);border-color:var(--cy);box-shadow:var(--sh-hi)}
.tc-new{position:absolute;top:-11px;left:-8px;font-family:var(--pixel);font-size:11px;color:#fff;background:var(--orange);
  border:2px solid #e07d22;border-radius:8px;padding:3px 9px;transform:rotate(-6deg)}
.tc-ic{width:56px;height:56px;display:grid;place-items:center;background:var(--cy-l);border:2px solid var(--cy-line);border-radius:13px;margin-bottom:14px}
.tc-ic svg{width:30px;height:30px}
.tc-name{font-weight:900;font-size:16px;color:var(--ink);margin-bottom:7px}
.tc-desc{font-family:var(--sans);color:var(--ink2);font-size:12.5px;line-height:1.65;flex:1}
.tc-btn{margin-top:16px;display:flex;align-items:center;justify-content:center;gap:7px;font-weight:800;font-size:13.5px;
  color:#fff;background:linear-gradient(180deg,#45cfe8,#1fa8c8);border:2px solid var(--cy-d);border-radius:10px;padding:10px;box-shadow:0 4px 0 var(--cy-d);transition:.15s var(--ease)}
.tool-card2:not(.soon):hover .tc-btn{transform:translateY(2px);box-shadow:0 2px 0 var(--cy-d)}
.car-btn{width:44px;height:44px;flex:0 0 auto;border:2px solid var(--ink);background:#fff;border-radius:12px;
  font-size:22px;font-weight:900;color:var(--ink);box-shadow:0 3px 0 var(--ink);transition:.15s var(--ease)}
.car-btn:hover{transform:translateY(2px);box-shadow:0 1px 0 var(--ink);color:var(--cy)}

/* ===== FOOTER ===== */
.ft{background:#fff;border-top:2px solid var(--line);margin-top:20px}
.ft-inner{max-width:1160px;margin:0 auto;padding:clamp(34px,5vw,54px) clamp(16px,4vw,44px);
  display:grid;grid-template-columns:1.3fr 2fr;gap:34px}
.ft-logo{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.ft-brand>p{font-family:var(--sans);font-size:13px;color:var(--ink2);margin-bottom:8px}
.ft-copy{font-size:11.5px!important;color:var(--dim)!important}
.ft-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ft-col h4{font-weight:900;font-size:14px;color:var(--ink);margin-bottom:14px}
.ft-col a{display:block;font-family:var(--sans);font-size:13px;color:var(--ink2);margin-bottom:9px;transition:.2s}
.ft-col a:hover{color:var(--cy)}
.ft-social{display:flex;gap:10px}
.ft-social a{width:38px;height:38px;display:grid;place-items:center;border:2px solid var(--line2);border-radius:10px;color:var(--ink);transition:.2s var(--ease)}
.ft-social a svg{width:18px;height:18px}
.ft-social a:hover{transform:translateY(-3px);color:#fff;border-color:transparent}
.ft-social a.yt:hover{background:#ff0033}.ft-social a.tk:hover{background:#111}
.ft-social a.x:hover{background:#111}.ft-social a.ig:hover{background:linear-gradient(45deg,#f09433,#dc2743,#bc1888)}

/* ===== RESPONSIVE ===== */
@media(max-width:960px){
  .feat-grid,.latest-grid{grid-template-columns:repeat(2,1fr)}
  .about-card{grid-template-columns:1fr;text-align:center}
  .about-mascot{margin:0 auto}
  .about-h,.stat-row{justify-content:center}
  .steps{flex-wrap:wrap}.step{flex:1 1 240px}.step-arrow{display:none}
}
@media(max-width:760px){
  .hd-nav{display:none}
  .hd-nav.open{display:flex;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;
    background:#fff;border-bottom:2px solid var(--line);padding:8px 0}
  .hd-nav.open a{padding:13px 24px}
  .hd-login{display:none}
  .hd-burger{display:flex}
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-btns{justify-content:center}
  .hero-art{margin-top:20px}
  .ft-inner{grid-template-columns:1fr}
}
@media(max-width:560px){
  .feat-grid,.latest-grid{grid-template-columns:1fr}
  .pc{display:none}
  .ft-cols{grid-template-columns:1fr 1fr}
  .car-btn{display:none}
}