/* /info/info20260310a/assets/lecture2603.css */

:root{
  --bg:#ffffff;
  --ink:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --card:#f9fafb;
  --accent:#111827;
  --accent2:#2563eb;
  --warn:#b91c1c;
  --ok:#065f46;
  --radius:18px;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
}
a{color:var(--accent2); text-decoration:none}
a:hover{text-decoration:underline}

.container{max-width:920px;margin:0 auto;padding:18px 16px 48px;}
.hero{border:1px solid var(--line);border-radius:var(--radius);padding:18px;background:linear-gradient(180deg,#f8fafc,#ffffff);}

.badge{display:inline-block;font-size:12px;padding:6px 10px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);}
h1{margin:10px 0 6px;font-size:26px;line-height:1.25;}
.subttl{font-weight:600;color:#6b7280;font-size:16px;}
.sub{margin:0;color:var(--muted);font-size:14px;}

.grid{display:grid;grid-template-columns:1fr;gap:12px;margin-top:14px;}
@media(min-width:720px){.grid{grid-template-columns:1.3fr 0.7fr;}}

.card{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:14px;}
.kv{display:grid;gap:8px;}
.kv .row{display:flex;gap:10px;align-items:flex-start;}
.kv .k{width:92px;color:var(--muted);font-size:13px;flex:0 0 auto;}
.kv .v{font-weight:600;}

.section{margin-top:14px;border:1px solid var(--line);border-radius:var(--radius);padding:14px;}
.section h2{font-size:18px;margin:0 0 8px;}
.list{margin:8px 0 0;padding-left:18px;}

.notice{margin-top:10px;padding:12px;border-radius:14px;border:1px dashed var(--line);background:#fff;color:var(--muted);font-size:14px;}
.ok-inline{color:var(--ok);font-weight:800;}
.warn-inline{color:var(--warn);font-weight:800;}

.cta{display:grid;gap:10px;margin-top:12px;}
@media(min-width:720px){.cta{grid-template-columns:1fr 1fr;}}

.btn{
  display:flex;align-items:center;justify-content:center;gap:10px;
  padding:14px;border-radius:16px;border:1px solid var(--line);
  background:#fff;font-weight:700;color:var(--ink);text-align:center;
}
.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn small{display:block;font-weight:600;opacity:.9;}

.form{border:1px solid var(--line);border-radius:var(--radius);padding:16px;background:#fff;margin-top:14px;}
.field{margin:10px 0;}
label{display:block;font-weight:700;font-size:14px;margin-bottom:6px;}
input[type="text"],input[type="email"],input[type="tel"],select,textarea{
  width:100%;padding:12px;border:1px solid var(--line);border-radius:14px;font-size:16px;background:#fff;
}
textarea{min-height:92px;resize:vertical;}
.help{font-size:12px;color:var(--muted);margin-top:6px;}
.inline{display:flex;gap:10px;flex-wrap:wrap;}
.chk{display:flex;align-items:center;gap:8px;font-size:14px;}
hr{border:none;border-top:1px solid var(--line);margin:14px 0;}

.alert{border:1px solid #fecaca;background:#fff1f2;color:#991b1b;padding:12px;border-radius:14px;}
.ok{border:1px solid #bbf7d0;background:#f0fdf4;color:#065f46;padding:12px;border-radius:14px;}

.h2mini{margin:0 0 8px;font-size:16px;}
.who{margin:0;font-weight:800;}
.mini{font-size:13px;color:var(--muted);}
.footer{margin-top:22px;color:var(--muted);font-size:12px;text-align:center;}

.btn.disabled,
span.btn.disabled {
  display: inline-block;
  opacity: 0.6;
  pointer-events: none;
  cursor: default;
}

.lecture-bottom-links {
  margin: 56px 0 0;
  padding: 24px 20px;
  background: #f8f8f8;
  border: 1px solid #e5e5e5;
  border-radius: 12px;
}

.lecture-bottom-links h3 {
  margin: 0 0 16px;
  font-size: 1.1rem;
  line-height: 1.5;
  color: #333;
}

.lecture-bottom-links-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lecture-bottom-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 10px;
  text-decoration: none;
  color: #333;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.lecture-bottom-link:hover {
  background: #fcfcfc;
  border-color: #cfcfcf;
  transform: translateY(-1px);
}

.lecture-bottom-link-label {
  font-size: 0.98rem;
  line-height: 1.5;
}

.lecture-bottom-link-arrow {
  margin-left: 12px;
  font-size: 1.2rem;
  line-height: 1;
  color: #888;
}

@media screen and (max-width: 767px) {
  .lecture-bottom-links {
    margin-top: 40px;
    padding: 20px 16px;
  }

  .lecture-bottom-link {
    padding: 13px 14px;
  }

  .lecture-bottom-link-label {
    font-size: 0.95rem;
  }
}