/* ============================================
   WINプラス合同会社 LP  style.css
   ============================================ */

:root{
  --navy:        #0f2545;
  --navy-deep:   #0a1a33;
  --navy-light:  #1c3a63;
  --accent:      #1e88e5;   /* WIN ブルー */
  --accent-2:    #00bfa6;   /* プラス アクセント（ティール）*/
  --text:        #1f2733;
  --text-sub:    #5b6675;
  --line:        #e4e8ee;
  --bg:          #ffffff;
  --bg-soft:     #f5f7fa;
  --radius:      14px;
  --shadow:      0 10px 30px rgba(15,37,69,.08);
  --shadow-lg:   0 20px 50px rgba(15,37,69,.14);
  --ease:        cubic-bezier(.22,.61,.36,1);
  --max:         1120px;
}

*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }

html{ scroll-behavior:smooth; scroll-padding-top:76px; }

body{
  font-family:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.9;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.02em;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }

.container{ width:100%; max-width:var(--max); margin-inline:auto; padding-inline:24px; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:.5em;
  padding:15px 34px;
  border-radius:999px;
  font-weight:700;
  font-size:15px;
  letter-spacing:.04em;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
  will-change:transform;
}
.btn--primary{
  color:#fff;
  background:linear-gradient(120deg,var(--accent),var(--accent-2));
  box-shadow:0 10px 24px rgba(30,136,229,.35);
}
.btn--primary:hover{ transform:translateY(-3px); box-shadow:0 16px 32px rgba(30,136,229,.45); }
.btn--ghost{
  color:#fff;
  border:1.5px solid rgba(255,255,255,.55);
}
.btn--ghost:hover{ background:rgba(255,255,255,.12); transform:translateY(-3px); }
.btn--lg{ padding:18px 46px; font-size:16px; }

/* ---------- Logo ---------- */
.logo{ display:inline-flex; align-items:center; gap:9px; }
.logo__icon{ width:42px; height:42px; display:block; flex:none; }
.logo__text{ font-weight:700; font-size:18px; letter-spacing:.02em; color:var(--navy); }
.logo__accent{ color:var(--accent); }

/* ---------- Header ---------- */
.header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s, border-color .3s;
}
.header.is-scrolled{ box-shadow:0 4px 20px rgba(15,37,69,.07); border-color:var(--line); }
.header__inner{
  max-width:var(--max); margin-inline:auto;
  padding:14px 24px;
  display:flex; align-items:center; justify-content:space-between;
}
.gnav__list{ display:flex; align-items:center; gap:30px; }
.gnav__list a{
  font-size:14.5px; font-weight:500; color:var(--navy);
  position:relative; padding:4px 0;
  transition:color .25s;
}
.gnav__list a:not(.gnav__cta a)::after{
  content:""; position:absolute; left:0; bottom:-2px;
  width:100%; height:2px; background:var(--accent);
  transform:scaleX(0); transform-origin:right; transition:transform .3s var(--ease);
}
.gnav__list a:not(.gnav__cta a):hover{ color:var(--accent); }
.gnav__list a:not(.gnav__cta a):hover::after{ transform:scaleX(1); transform-origin:left; }
.gnav__cta a{
  color:#fff; background:linear-gradient(120deg,var(--accent),var(--accent-2));
  padding:10px 22px; border-radius:999px;
  box-shadow:0 6px 16px rgba(30,136,229,.3);
}
.gnav__cta a:hover{ transform:translateY(-2px); }

/* Hamburger */
.hamburger{
  display:none; width:44px; height:44px;
  background:none; border:none; cursor:pointer;
  position:relative; z-index:110;
}
.hamburger span{
  position:absolute; left:9px; width:26px; height:2.5px; border-radius:2px;
  background:var(--navy); transition:.35s var(--ease);
}
.hamburger span:nth-child(1){ top:14px; }
.hamburger span:nth-child(2){ top:21px; }
.hamburger span:nth-child(3){ top:28px; }
.hamburger.is-active span:nth-child(1){ top:21px; transform:rotate(45deg); }
.hamburger.is-active span:nth-child(2){ opacity:0; }
.hamburger.is-active span:nth-child(3){ top:21px; transform:rotate(-45deg); }

/* ---------- Hero ---------- */
.hero{
  position:relative; min-height:100svh;
  display:flex; flex-direction:column; justify-content:center;
  color:#fff; overflow:hidden;
  padding:120px 24px 80px;
}
.hero__bg{
  position:absolute; inset:0; z-index:0;
  background:
    radial-gradient(1000px 600px at 78% 12%, rgba(0,191,166,.28), transparent 60%),
    radial-gradient(900px 700px at 12% 88%, rgba(30,136,229,.32), transparent 60%),
    linear-gradient(150deg,var(--navy-deep),var(--navy) 55%,var(--navy-light));
}
.hero__bg::after{
  content:""; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);
}
.hero__inner{
  position:relative; z-index:1;
  max-width:var(--max); margin-inline:auto; width:100%;
}
.hero__lead{
  font-family:"Montserrat",sans-serif;
  font-weight:700; letter-spacing:.22em; font-size:14px;
  color:var(--accent-2);
  margin-bottom:22px;
  opacity:0; transform:translateY(24px);
  animation:fadeUp .9s var(--ease) .1s forwards;
}
.hero__title{
  font-family:"Noto Serif JP",serif;
  font-weight:700;
  font-size:clamp(2.1rem,6vw,4.1rem);
  line-height:1.5;
  letter-spacing:.02em;
  margin-bottom:28px;
  opacity:0; transform:translateY(24px);
  animation:fadeUp .9s var(--ease) .25s forwards;
}
.hero__title-accent{
  background:linear-gradient(120deg,#5fd0ff,var(--accent-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero__desc{
  font-size:clamp(14px,1.6vw,17px); line-height:2.1;
  color:rgba(255,255,255,.86);
  margin-bottom:44px;
  opacity:0; transform:translateY(24px);
  animation:fadeUp .9s var(--ease) .4s forwards;
}
.hero__actions{
  display:flex; gap:16px; flex-wrap:wrap;
  opacity:0; transform:translateY(24px);
  animation:fadeUp .9s var(--ease) .55s forwards;
}
.hero__scroll{
  position:absolute; left:50%; bottom:26px; z-index:1;
  transform:translateX(-50%);
  font-family:"Montserrat",sans-serif; font-size:11px; letter-spacing:.2em;
  color:rgba(255,255,255,.7);
  display:flex; flex-direction:column; align-items:center; gap:40px;
}
.hero__scroll::after{
  content:""; width:1px; height:34px;
  background:linear-gradient(rgba(255,255,255,.7),transparent);
  animation:scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine{ 0%{transform:scaleY(0);transform-origin:top} 50%{transform:scaleY(1);transform-origin:top} 51%{transform-origin:bottom} 100%{transform:scaleY(0);transform-origin:bottom} }
@keyframes fadeUp{ to{ opacity:1; transform:none; } }

/* ---------- Section common ---------- */
.section{ padding:110px 0; }
.section__head{ text-align:center; margin-bottom:60px; }
.section__en{
  font-family:"Montserrat",sans-serif; font-weight:700;
  letter-spacing:.2em; font-size:13px; color:var(--accent);
  margin-bottom:12px;
}
.section__title{
  font-family:"Noto Serif JP",serif;
  font-size:clamp(1.7rem,4vw,2.5rem); font-weight:700; color:var(--navy);
  line-height:1.4;
}
.section__sub{ margin-top:20px; color:var(--text-sub); font-size:15px; }
.section__head--light .section__en{ color:var(--accent-2); }
.section__head--light .section__title{ color:#fff; }
.section__head--light .section__sub{ color:rgba(255,255,255,.8); }

/* Reveal on scroll */
.reveal{ opacity:0; transform:translateY(34px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }

/* ---------- About ---------- */
.about{ background:var(--bg-soft); }
.about__body{ max-width:820px; margin-inline:auto; text-align:center; }
.about__catch{
  font-family:"Noto Serif JP",serif; font-weight:700;
  font-size:clamp(1.3rem,3vw,1.9rem); color:var(--navy);
  line-height:1.7; margin-bottom:30px;
}
.about__text{ color:var(--text-sub); margin-bottom:20px; text-align:left; }
@media(min-width:768px){ .about__text{ text-align:center; } }

/* ---------- Service ---------- */
.service__grid{
  display:grid; gap:24px;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
}
.card{
  position:relative;
  background:var(--bg); border:1px solid var(--line);
  border-radius:var(--radius); padding:34px 30px 32px;
  box-shadow:var(--shadow);
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
  overflow:hidden;
}
.card::before{
  content:""; position:absolute; left:0; top:0; height:4px; width:100%;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  transform:scaleX(0); transform-origin:left; transition:transform .4s var(--ease);
}
.card:hover{ transform:translateY(-8px); box-shadow:var(--shadow-lg); border-color:transparent; }
.card:hover::before{ transform:scaleX(1); }
.card__icon{
  width:56px; height:56px; border-radius:14px;
  display:grid; place-items:center; color:var(--accent);
  background:linear-gradient(135deg,rgba(30,136,229,.12),rgba(0,191,166,.12));
  margin-bottom:20px;
}
.card__icon svg{ width:28px; height:28px; }
.card__num{
  font-family:"Montserrat",sans-serif; font-weight:800; font-size:13px;
  color:var(--accent-2); letter-spacing:.08em; margin-bottom:6px;
}
.card__title{
  font-size:18.5px; font-weight:700; color:var(--navy);
  margin-bottom:12px; line-height:1.5;
}
.card__text{ font-size:14px; color:var(--text-sub); line-height:1.95; }
.card--cta{
  background:linear-gradient(150deg,var(--navy),var(--navy-light));
  border:none; color:#fff; display:flex; flex-direction:column; justify-content:center;
}
.card--cta .card__title{ color:#fff; }
.card--cta .card__text{ color:rgba(255,255,255,.82); margin-bottom:18px; }
.card--cta::before{ display:none; }
.card__link{ font-weight:700; color:var(--accent-2); font-size:15px; align-self:flex-start; transition:gap .3s; }
.card__link:hover{ opacity:.85; }

/* ---------- Feature ---------- */
.feature__grid{ display:grid; gap:28px; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); }
.feature__item{
  position:relative; padding:40px 32px 34px;
  border-radius:var(--radius); background:var(--bg-soft);
  border:1px solid var(--line);
  transition:transform .35s var(--ease), box-shadow .35s var(--ease);
}
.feature__item:hover{ transform:translateY(-6px); box-shadow:var(--shadow); }
.feature__num{
  font-family:"Montserrat",sans-serif; font-weight:800; font-size:44px;
  line-height:1;
  background:linear-gradient(120deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
  margin-bottom:16px;
}
.feature__title{ font-size:19px; font-weight:700; color:var(--navy); margin-bottom:12px; line-height:1.5; }
.feature__text{ font-size:14.5px; color:var(--text-sub); }

/* ---------- Company ---------- */
.company__table{ width:100%; max-width:820px; margin-inline:auto; border-collapse:collapse; }
.company__table th,
.company__table td{
  text-align:left; vertical-align:top; padding:22px 8px;
  border-bottom:1px solid var(--line); font-size:15px;
}
.company__table th{
  width:170px; color:var(--navy); font-weight:700; white-space:nowrap;
}
.company__table td{ color:var(--text-sub); }
.company__biz li{ position:relative; padding-left:20px; margin-bottom:8px; }
.company__biz li::before{
  content:""; position:absolute; left:0; top:.85em;
  width:8px; height:8px; border-radius:50%;
  background:linear-gradient(120deg,var(--accent),var(--accent-2));
}
.company__biz li:last-child{ margin-bottom:0; }

/* ---------- Contact ---------- */
.contact{ padding:0; }
.contact__box{
  position:relative; overflow:hidden;
  width:100%;
  padding:96px 0;
  text-align:center; color:#fff;
  background:linear-gradient(150deg,var(--navy-deep),var(--navy) 55%,var(--navy-light));
}
.contact__box::before{
  content:""; position:absolute; inset:0;
  background:
    radial-gradient(700px 400px at 82% 20%, rgba(0,191,166,.25), transparent 60%),
    radial-gradient(700px 500px at 15% 90%, rgba(30,136,229,.28), transparent 60%);
}
.contact__box > *{ position:relative; z-index:1; }
.contact__actions{ margin-top:38px; }
.contact__note{ margin-top:22px; font-size:12.5px; color:rgba(255,255,255,.6); }
.contact__note code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  background:rgba(255,255,255,.12); padding:2px 7px; border-radius:5px; font-size:12px;
}

/* ---------- Footer ---------- */
.footer{ background:var(--navy-deep); color:rgba(255,255,255,.75); padding:56px 0 30px; }
.footer__inner{ display:flex; justify-content:space-between; align-items:flex-start; gap:36px; flex-wrap:wrap; }
.logo--footer .logo__text{ color:#fff; }
.footer__addr{ margin-top:16px; font-size:13.5px; color:rgba(255,255,255,.6); }
.footer__nav{ display:flex; flex-wrap:wrap; gap:14px 28px; }
.footer__nav a{ font-size:14px; color:rgba(255,255,255,.78); transition:color .25s; }
.footer__nav a:hover{ color:var(--accent-2); }
.footer__copy{
  margin-top:40px; padding-top:24px; text-align:center;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:12.5px; color:rgba(255,255,255,.5);
  font-family:"Montserrat",sans-serif; letter-spacing:.04em;
}

/* ---------- Page top ---------- */
.pagetop{
  position:fixed; right:22px; bottom:22px; z-index:90;
  width:48px; height:48px; border-radius:50%;
  border:none; cursor:pointer; color:#fff;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 8px 20px rgba(30,136,229,.4);
  display:grid; place-items:center;
  opacity:0; visibility:hidden; transform:translateY(12px);
  transition:.35s var(--ease);
}
.pagetop svg{ width:22px; height:22px; }
.pagetop.is-visible{ opacity:1; visibility:visible; transform:none; }
.pagetop:hover{ transform:translateY(-3px); }

/* ---------- Responsive ---------- */
@media(max-width:860px){
  .hamburger{ display:block; }
  .gnav{
    position:fixed; inset:0 0 0 auto; width:min(78vw,320px);
    background:rgba(15,37,69,.98); backdrop-filter:blur(6px);
    transform:translateX(100%); transition:transform .4s var(--ease);
    display:flex; align-items:center; justify-content:center;
    box-shadow:-10px 0 40px rgba(0,0,0,.25);
  }
  .gnav.is-open{ transform:none; }
  .gnav__list{ flex-direction:column; gap:26px; }
  .gnav__list a{ color:#fff; font-size:16px; }
  .gnav__list a:not(.gnav__cta a):hover{ color:var(--accent-2); }
  .gnav__cta a{ margin-top:6px; }
}
@media(max-width:640px){
  .section{ padding:80px 0; }
  .section__head{ margin-bottom:44px; }
  .btn{ width:100%; }
  .hero__actions{ flex-direction:column; }
  .hero__actions .btn{ width:100%; }
  .company__table th{ display:block; width:100%; padding-bottom:4px; border-bottom:none; }
  .company__table td{ display:block; width:100%; padding-top:4px; }
  .company__table tr{ display:block; padding:14px 0; border-bottom:1px solid var(--line); }
  .company__table th,.company__table td{ border-bottom:none; padding-inline:0; }
  .footer__inner{ flex-direction:column; gap:24px; }
}

@media(prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto; }
  .reveal{ opacity:1; transform:none; }
  .hero__lead,.hero__title,.hero__desc,.hero__actions{ opacity:1; transform:none; }
}