/* ===== Reset CSS ===== */
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
  display: block;
}
body {
  line-height: 1;
}
ol, ul {
  list-style: none;
}
blockquote, q {
  quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
  content: '';
  content: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* ===== Coomon ===== */
:root{
  --bg:#ffffff;
  --ink:#1c1b1b;
  --muted:#6b6b6b;
  --accent:#dfff43;           /* ボタンの蛍光イエロー */
  --accent-ink:#111;
  --max: 1080px;
  --radius: 14px;
}


body,html{
  text-align: center;
  font-size: 20px;
  line-height: 2;
  letter-spacing: 0.05rem;
  font-family: "Noto Sans JP", sans-serif;
}
img{
  max-width: 100%;
}
.container{
  max-width: 1400px;
  margin: 0 auto;
  padding: 5rem 15px 2.5rem;
}

.pconly{
  display: block;
}
.sponly{
  display: none;
}
@media (max-width:900px){
  .container{
    padding: 1.5rem 15px .5rem;
  }
}
@media (max-width:600px){
  .pconly{
    display: none;
  }
  .sponly{
    display: block;
  }
}
a{
  color: inherit;
}

p{
    line-height: 3;
    letter-spacing: 0.1rem;
    margin-bottom: .5rem;
}
.en{
  font-family: "Lancelot", serif;
  font-weight: 400;
  font-style: normal;
}
h1{
  line-height: 3;
  margin-bottom: 2rem;
}
h2{
  font-family: "Lancelot", serif;
  font-weight: 400;
  font-style: normal;
  font-size: 2rem;
  line-height: 1;
}
h2 span{
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.75rem;
  display: block;
  color: #777;
}

.muted{
  font-size: 0.75rem;
  display: block;
  color: #777;
  line-height: 1.7;
  font-weight: 300;
}
.logo{
  font-family: "Lancelot", serif;
  font-weight: 400;
  font-style: normal;
  font-size: 3.5rem;
  letter-spacing: 0;
  line-height: 1;
}
h1 .logo{
  line-height: 0;
}
.logo span{
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.75rem;
  display: block;
  color: #777;
}
@media (max-width:900px){
  h1,p{
    font-size: .65rem;
  }
  h1 .logo{
    line-height: 0.5;
  }

  .logo{
    font-size: 2.5rem;
  }
  .logo span{
    font-size: .5rem;
  }
  .muted{
   font-size: 0.65rem;
  }
}
/* ===== Catch ===== */
.catch img{
  max-width: 800px;
  margin: 0 auto 2rem;
  width: 80%;
}
.catch p{
  font-size: 2rem;
  letter-spacing: 0.25rem;
}
@media (max-width:900px){
  .catch img{
    margin-bottom: 1rem;
  }
  .catch p{
    font-size: 1rem;
  }
}

/* ===== Course ===== */
/* ===== instractor ===== */
.instractor{
  max-width: 600px;
  margin: 2rem auto 0;
}
.instractor .muted{
  text-align: left;
  color: inherit;
  line-height: 2;
  margin-bottom: 1.5rem;
}
.cards{
  margin-top:18px;
  display:grid;
  gap:16px;
  grid-template-columns: repeat(3,1fr)
}
.card p{
  line-height: 2;

}

.card img{aspect-ratio: 4 / 3;object-fit:cover}
@media (max-width:900px){
  .cards{
      gap:7.5px;
  }
}


/* ===== Contact ===== */
.contact .logo{
  margin-bottom: 2rem;
}

.contact h2{
  margin-top: 3rem;
}
/* ===== Btn ===== */
.lead-btn{margin-top:18px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.6em;
  padding:.75em 3.5em;
  margin-bottom: 1rem;
  border-radius:999px;
  border:1.5px solid #222;
  background:var(--accent);
  color:var(--accent-ink);
  font-size: .75rem;
  font-weight:700;
  text-decoration: none;

  box-shadow:0 6px 0 #222;transition:transform .06s ease, box-shadow .06s ease}
.btn:hover{transform:translateY(1px);box-shadow:0 4px 0 #222}
.contact .btn{margin-top:16px}

@media (max-width:900px){
  .lead-btn{
    margin-top: 0px;
  }
}