/* ===== Base ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: "Noto Sans JP", system-ui, sans-serif;
  color: #0f172a;
  background: #f6f9ff;
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }

:root{
  --s-blue: #2a6be7;
  --s-blue-ink: #1653ce;
  --s-line: #e7edf6;
}

/* フル幅、左右余白は気持ちよく */
.s-header-in,
.s-hero-in,
.s-main,
.s-footer {
  padding-inline: clamp(16px, 5vw, 84px);
}

/* ===== Header ===== */
.s-header {
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--s-line);
}
.s-header-in {
  height: 64px;
  display: flex;
  align-items: center;
}
.s-company{
  font-weight: 900;
  letter-spacing: .02em;
  color: #0f172a;
}
.s-company:hover { color: var(--s-blue-ink); }

/* ===== Hero ===== */
.s-hero{
  padding: 38px 0 20px;
  position: relative;
  overflow:hidden;
}
.s-hero::before{
  content:"";
  position:absolute;
  inset:-60px -60px auto -60px;
  height: 240px;
  background:
    radial-gradient(800px 220px at 18% 20%, rgba(42,107,231,.18), transparent 60%),
    radial-gradient(700px 240px at 85% 0%, rgba(25,167,174,.12), transparent 58%),
    linear-gradient(120deg, rgba(42,107,231,.08), rgba(42,107,231,0));
  pointer-events:none;
}
.s-hero-inner{
  position: relative;
  padding-inline: clamp(16px, 4vw, 56px);
  text-align: center;
}
.s-hero-title{
  font-size: clamp(44px, 7vw, 76px);
  font-weight: 900;
  color: var(--s-blue);
  line-height: 1;
  letter-spacing: .02em;
}
.s-hero-sub{
  margin-top: 10px;
  font-weight: 900;
  font-size: 14px;
  color: #111827;
}

/* ===== Main / Card ===== */
.s-main{ padding-block: 18px 70px; }

.s-card{
  background: #fff;
  border: 1px solid var(--s-line);
  border-radius: 16px;
  box-shadow: 0 12px 26px rgba(17,24,39,.06);
  overflow: hidden;
}

.s-card-head{
  padding: 18px 18px 8px;
}
.s-card-title{
  font-size: 16px;
  font-weight: 900;
  color: #0f172a;
}
.s-card-note{
  margin-top: 6px;
  color: #6b7280;
  font-size: 13px;
  font-weight: 600;
}

/* ===== Calendar Grid（PNG） ===== */
.s-cal-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 14px 18px 6px;
}

.s-cal-item{
  border: 1px solid var(--s-line);
  border-radius: 14px;
  background: #fbfdff;
  overflow: hidden;
}

.s-cal-top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 12px 10px;
  border-bottom: 1px solid var(--s-line);
  background: #fff;
}

.s-cal-title{
  font-size: 14px;
  font-weight: 900;
  color: #0f172a;
}

.s-cal-link{
  font-size: 12px;
  font-weight: 900;
  color: var(--s-blue-ink);
  background: #eef4ff;
  border: 1px solid #dbe6ff;
  padding: 8px 10px;
  border-radius: 9999px;
}
.s-cal-link:hover{ filter: brightness(1.02); }

/* 画像表示（角丸＋影／クリックで拡大） */
.s-cal-thumb{
  display: block;
  padding: 12px;
}
.s-cal-thumb img{
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  background: #eef4ff;
  box-shadow: 0 10px 22px rgba(42,107,231,.08);
  border: 1px solid rgba(231,237,246,.9);
}

/* 補足メモ */
.s-note{
  margin: 10px 18px 18px;
  padding: 14px 14px;
  border: 1px solid var(--s-line);
  border-radius: 14px;
  background: #fbfdff;
}
.s-note-title{
  font-size: 12px;
  font-weight: 900;
  color: #0f172a;
}
.s-note-list{
  margin-top: 8px;
  padding-left: 1.2em;
  color: #6b7280;
  font-size: 13px;
  font-weight: 600;
}
.s-note-list li{ margin: 4px 0; }

/* ===== Footer ===== */
.s-footer{
  padding-block: 18px 22px;
  color: #8a94a7;
  font-weight: 700;
  text-align: center;
  border-top: 1px solid var(--s-line);
  background: rgba(255,255,255,.7);
}

/* ===== Responsive ===== */
@media (max-width: 900px){
  .s-cal-grid{ grid-template-columns: 1fr; }
}
@media (max-width: 640px){
  .s-cal-grid{ padding-inline: 14px; }
  .s-cal-thumb{ padding: 10px; }
}

/* 年間カレンダーボタン */
.s-yearly-btn {
  display: inline-flex;
  align-items: center;
  gap: .4em;
  margin-top: 12px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  background: #114fa1;
  border-radius: 999px;
  text-decoration: none;
  transition: background .2s ease, transform .2s ease;
}

.s-yearly-btn::after {
  content: "↗";
  font-size: 12px;
}

.s-yearly-btn:hover {
  background: #0d3f83;
  transform: translateY(-1px);
}
.s-card-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}