@charset "UTF-8";

/* =========================================================
   Links page only
   ========================================================= */

:root{
  --navy: #0b1220;
  --text: #0f172a;
  --muted: #475569;
  --line: rgba(17, 24, 39, .10);
}

/* =========================
   Hero（container幅）
   ========================= */

main.links{
  padding-bottom: 70px;
}

.links__hero{
  margin-top: 40px;
  margin-bottom: 18px;
}

.links__heroMedia{
  position: relative;
  aspect-ratio: 16 / 9;
  min-height: 320px;
  max-height: 620px;

  border: 1px solid var(--line);
  border-radius: 0;
  overflow: hidden;
  background: var(--navy);
}

.links__heroImg{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.links__heroOverlay{
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.22), rgba(0,0,0,0.45));
}

.links__heroInner{
  position: relative;
  z-index: 1;
  height: 100%;
  padding: 18px 18px;
  display: grid;
  place-content: center;
  text-align: center;
  color: #fff;
}

.links__heroTitle{
  margin: 0 0 10px;
  font-weight: 900;
  letter-spacing: .02em;
  line-height: 1.05;
  font-size: clamp(36px, 4.2vw, 64px);
  text-shadow: 0 12px 28px rgba(0,0,0,.35);
}

.links__heroLead{
  margin: 0;
  max-width: 75ch;
  margin-inline: auto;
  font-weight: 700;
  color: rgba(255,255,255,.92);
  line-height: 1.7;
  font-size: clamp(16px, 1.35vw, 20px);
  text-shadow: 0 10px 24px rgba(0,0,0,.30);
}

@media (max-width: 560px){
  .links__hero{ margin-top: 14px; }
  .links__heroMedia{
    aspect-ratio: 4 / 3;
    min-height: 240px;
    max-height: 520px;
  }
  .links__heroTitle{ font-size: clamp(30px, 7vw, 44px); }
}

/* =========================
   Layout
   ========================= */

.links__grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
  margin-top: 18px;
}

@media (max-width: 980px){
  .links__grid{
    grid-template-columns: 1fr;
  }
}

.links__social{
  display: grid;
  gap: 18px;
}

/* =========================
   Cards
   ========================= */

.card{
  border: 1px solid var(--line);
  border-radius: 0;
  background: #fff;
  padding: 14px 14px;
  box-shadow: 0 10px 22px rgba(15,23,42,.06), 0 2px 6px rgba(15,23,42,.04);
}

.card__title{
  margin: 0 0 12px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: .02em;
}

/* =========================
   Contact form
   ========================= */

.form{
  display: grid;
  gap: 12px;
}

.form__row{
  display: grid;
  gap: 6px;
}

.form__label{
  font-weight: 800;
  color: var(--text);
}

.form__input,
.form__textarea{
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 10px 12px;
  font-size: 16px;
  color: var(--text);
  background: #fff;
}

.form__textarea{
  resize: vertical;
}

.form__actions{
  margin-top: 6px;
  display: flex;
  justify-content: flex-start;
}

.form__note{
  margin: 6px 0 0;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.6;
}

.form__notice{
  margin: 0 0 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
}

.form__notice--ok{
  background: rgba(34,197,94,.08);
}

.form__notice--ng{
  background: rgba(239,68,68,.08);
}

/* =========================
   YouTube
   ========================= */

.yt{
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
}

.yt__iframe{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}