:root{
--green:#1f4f8a;
--green2:#3470c6;
--gold:#c7a35f;
  --text:#1a1f1b;
  --line:#dfe7e1;
  --bg:#f7faf7;
}

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

body{
  font-family:"Hiragino Mincho ProN","Yu Mincho",serif;
  color:var(--text);
  line-height:1.8;
  background:#fff;
}

a{
  color:inherit;
  text-decoration:none;
}

/* HEADER */

.header{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:100;
  background:#fff;
  padding:18px 5%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  box-shadow:0 2px 12px rgba(0,0,0,.06);
}

.logo{
  display:flex;
  align-items:center;
}

.logo strong{
  color:var(--green);
  font-size:32px;
  margin-right:12px;
}

.logo span{
  font-weight:bold;
  color:var(--green);
}

nav{
  display:flex;
  gap:28px;
  font-size:14px;
  font-weight:bold;
}

/* HERO */

.hero{
  min-height:720px;
  padding:170px 6% 100px;
  background:
    linear-gradient(90deg,rgba(255,255,255,.95),rgba(255,255,255,.72),rgba(255,255,255,.1)),
    url("images/hero.jpg") center center / cover no-repeat;
  display:flex;
  align-items:center;
  position:relative;
}

.hero::after{
  content:"";
  position:absolute;
  right:0;
  bottom:0;
  width:240px;
  height:120px;
  background:var(--gold);
  clip-path:polygon(100% 0,0 100%,100% 100%);
  opacity:.9;
}

.hero-text{
  max-width:620px;
  position:relative;
  z-index:2;
}

.hero h1{
  font-size:45px;
  line-height:1.55;
  color:var(--green);
  margin-bottom:28px;
}

.hero p{
  font-size:17px;
  margin-bottom:36px;
}

.btn{
  display:inline-block;
  background:var(--green);
  color:#fff;
  padding:16px 34px;
  font-weight:bold;
}

.btn.white{
  background:#fff;
  color:var(--green);
}

/* COMMON SECTION */

.section{
  padding:90px 6%;
  text-align:center;
  position:relative;
}

.section h2{
  font-size:34px;
  color:var(--green);
  margin-bottom:44px;
}

.section h2::after{
  content:"";
  display:block;
  width:70px;
  height:2px;
  background:var(--gold);
  margin:18px auto 0;
}

/* WHY */

.why-section{
  padding:110px 6%;
  background:#fff;
}

.section-heading{
  text-align:center;
  margin-bottom:64px;
}

.section-heading h2{
  font-size:44px;
  font-weight:400;
  color:var(--green);
  margin-bottom:18px;
}

.section-heading span{
  display:block;
  width:80px;
  height:3px;
  background:var(--gold);
  margin:0 auto;
}

.why-wrap{
  max-width:1180px;
  margin:0 auto;
  display:grid;
  grid-template-columns:45% 55%;
  gap:44px;
  align-items:start;
}

.why-text .lead{
  font-size:18px;
  line-height:2;
  margin-bottom:34px;
}

.why-list{
  list-style:none;
  margin:0;
  padding:0;
}

.why-list li{
  position:relative;
  padding-left:45px;
  margin-bottom:22px;
  font-size:20px;
  font-weight:bold;
  line-height:1.6;
}

.why-list li::before{
  content:"✓";
  position:absolute;
  left:0;
  top:4px;
  width:24px;
  height:24px;
  background:var(--green);
  color:#fff;
  border-radius:4px;
  font-size:14px;
  line-height:24px;
  text-align:center;
}

.why-text .message{
  margin-top:34px;
  font-size:17px;
  line-height:2;
  color:#444;
}

.why-images{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
}

.why-images img{
  width:100%;
  height:280px;
  object-fit:cover;
  object-position:center top;
  display:block;
}

/* PROBLEM / ACTIVITY */

.problem-grid,
.manner-grid,
.activity-grid{
  max-width:1120px;
  margin:0 auto;
  display:grid;
  gap:24px;
}

.problem-grid{
  grid-template-columns:repeat(4,1fr);
}

.problem-grid div,
.activity-grid div{
  background:#fff;
  border:1px solid var(--line);
  padding:28px 20px;
  font-weight:bold;
  color:var(--green);
  box-shadow:0 8px 24px rgba(0,0,0,.04);
  transition:.3s;
}

.problem-grid div:hover,
.activity-grid div:hover,
.card:hover{
  transform:translateY(-6px);
}

/* CONCEPT */

.concept{
  display:grid;
  grid-template-columns:45% 55%;
  background:
    linear-gradient(
      90deg,
      rgba(31,79,138,.96),
      rgba(52,112,198,.86)
    );
  color:#fff;
}

.concept-img{
  min-height:420px;
  background:url("images/concept.jpg") center center / cover no-repeat;
}

.concept-text{
  padding:80px 8%;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.concept-text h2{
  font-size:38px;
  margin-bottom:28px;
}

.concept-text h2::after{
  content:"";
  display:block;
  width:70px;
  height:2px;
  background:var(--gold);
  margin:20px 0 0;
}

.concept-text p{
  color:rgba(255,255,255,.88);
}
.concept-copy{
  color:var(--gold) !important;
  font-size:26px;
  line-height:1.9;
  margin-top:24px;
}

/* MANNER */

.manner-grid{
  max-width:1120px;
  margin:0 auto;
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:24px;
}

.manner-card{
  background:#fff;
  border:1px solid var(--green);
  padding:34px 20px;
  text-align:center;
  min-height:280px;
  transition:.3s;
}

.manner-card:hover{
  transform:translateY(-6px);
  box-shadow:0 14px 34px rgba(0,0,0,.08);
}

.manner-icon{
  height:54px;
  margin-bottom:16px;

  display:flex;
  justify-content:center;
  align-items:center;
}

.manner-icon img{
  width:52px;
  height:52px;
  object-fit:contain;
}

.manner-card h3{
  color:var(--green);
  font-size:22px;
  letter-spacing:.06em;
  margin-bottom:4px;
  font-family:Georgia,"Times New Roman",serif;
}

.manner-card span{
  display:block;
  color:var(--green);
  font-weight:bold;
  font-size:14px;
  margin-bottom:18px;
}

.manner-card p{
  font-size:14px;
  line-height:1.8;
  text-align:left;
}

@media(max-width:900px){
  .manner-grid{
    grid-template-columns:1fr;
  }
}
/* ACTIVITY */

.activity-grid{
  grid-template-columns:repeat(3,1fr);
}

/* POSTER */

.poster{
  padding:80px 6%;
  background:
    linear-gradient(
      90deg,
      rgba(31,79,138,.96),
      rgba(52,112,198,.82)),
    url("images/poster-bg.jpg") center center / cover no-repeat;
  color:#fff;
  text-align:center;
  border-top:1px solid rgba(255,255,255,.12);
  border-bottom:1px solid rgba(255,255,255,.12);
}

.poster h2{
  font-size:34px;
  margin-bottom:20px;
}

.poster p{
  margin-bottom:34px;
}

/* =========================
   FOUNDER SECTION
========================= */

.founder-section{
  max-width:1360px;
  margin:0 auto;
  padding:90px 5%;
  display:grid;
  grid-template-columns:330px 360px 420px;
  gap:38px;
  align-items:center;
  background:#fff;
}

.founder-photo img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  object-position:center top;
  display:block;
  border-radius:4px;
}

.founder-profile{
  max-width:360px;
}

.founder-profile h2{
  font-size:40px;
  line-height:1.2;
  color:var(--green);
  margin-bottom:18px;
}

.founder-profile h3{
  font-size:25px;
  line-height:1.4;
  margin-bottom:22px;
}

.founder-profile p{
  font-size:15px;
  line-height:2;
  margin-bottom:16px;
}

.profile-note{
  margin-top:22px;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}

.profile-note span{
  border:1px solid var(--green);
  color:var(--green);
  padding:6px 10px;
  font-size:12px;
  line-height:1.4;
}

/* =========================
   FOUNDER MESSAGE BOX
========================= */

.founder-message{
  background:linear-gradient(135deg,
    var(--green),
    var(--green2));
  color:#fff;
  padding:38px 42px;
  position:relative;
  min-height:390px;

  display:flex;
  flex-direction:column;
  justify-content:center;
}

.founder-message::after{
  content:"JBMA";
  position:absolute;
  top:18px;
  right:24px;
  font-size:78px;
  font-weight:700;
  color:rgba(255,255,255,.055);
  z-index:0;
}

.founder-message *{
  position:relative;
  z-index:1;
}

.founder-message small{
  color:var(--gold);
  letter-spacing:.18em;
  font-size:13px;
  margin-bottom:16px;
}

.founder-message h4{
  font-size:26px;
  line-height:1.55;
  margin:0 0 26px;
  color:#fff;
}

.founder-message p{
  font-size:15px;
  line-height:1.9;
  color:rgba(255,255,255,.9);
  margin-bottom:14px;
}

@media(max-width:900px){
  .founder-section{
    grid-template-columns:1fr;
    gap:30px;
    padding:70px 6%;
  }

  .founder-profile{
    max-width:none;
  }

  .founder-message{
    min-height:auto;
    padding:40px 30px;
  }

  .founder-profile h2{
    font-size:36px;
  }

  .founder-message h4{
    font-size:26px;
  }
}
/* =========================
   FOUNDER SP
========================= */

@media(max-width:900px){

  .founder-section{
    grid-template-columns:1fr;
    gap:30px;
    padding:70px 6%;
  }

  .founder-profile{
    max-width:none;
  }

  .founder-message{
    min-height:auto;
    padding:40px 30px;
  }

  .founder-profile h2{
    font-size:38px;
  }

  .founder-message h4{
    font-size:28px;
  }

}

/* MESSAGE */

.message{
  padding:90px 6%;
  background:
    linear-gradient(135deg,#f7faf7,#ffffff);
  text-align:center;
}

.message h2{
  font-size:40px;
  color:var(--green);
  margin-bottom:24px;
}

/* FOOTER */

footer{
  background:var(--green);
  color:#fff;
  text-align:center;
  padding:44px 6%;
}

footer strong{
  font-size:34px;
}

/* RESPONSIVE */

@media(max-width:900px){

  .header{
    position:static;
    flex-direction:column;
    gap:16px;
  }

  nav{
    flex-wrap:wrap;
    justify-content:center;
    gap:16px;
  }

  .hero{
    padding:90px 6%;
    min-height:auto;
  }

  .hero h1{
    font-size:34px;
  }

  .why-wrap,
  .problem-grid,
  .manner-grid,
  .activity-grid,
  .concept,
  .founder{
    grid-template-columns:1fr;
  }

  .section-heading h2,
  .section h2,
  .concept-text h2,
  .poster h2,
  .message h2{
    font-size:30px;
  }

  .why-images{
    grid-template-columns:repeat(2,1fr);
  }

  .why-images img{
    height:220px;
  }

}