/* ---------------------------
   リセット & 基本設定
---------------------------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'PT Sans', sans-serif;
  color: #e6e6e6;

  /* 背景画像（GitHubのオンライン画像指定） */
  background:
    linear-gradient(rgba(0,0,0,0.65), rgba(0,0,0,0.65)),
    url("https://raw.githubusercontent.com/bwqj/bwqj.github.io/refs/heads/main/bg.png")
      center / cover no-repeat fixed;

  min-height: 100vh;
}

/* ---------------------------
   トップ年月日・時間
---------------------------- */
.top-info {
  padding: 30px 60px 0;
}

.newyear {
  font-size: 14px;
  margin-bottom: 6px;
  opacity: 0.8;
}

.datetime {
  font-size: 13px;
  opacity: 0.6;
  letter-spacing: 0.4px;
}

/* ---------------------------
   全体レイアウト
---------------------------- */
.layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  min-height: 100vh;
}

/* ---------------------------
   メイン動画グリッド
---------------------------- */
.video-grid {
  padding: 60px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 40px;
}

.video-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.video-item video {
  width: 100%;
  border-radius: 6px;
  background: #000;
  box-shadow: 0 12px 30px rgba(0,0,0,0.45);
}

.caption {
  font-size: 12px;
  opacity: 0.65;
  letter-spacing: 0.3px;
}

/* ---------------------------
   右アーカイブ
---------------------------- */
.archive {
  padding: 60px 30px;
  border-left: 1px solid rgba(255,255,255,0.08);
  font-size: 13px;
}

.archive-title {
  font-size: 11px;
  letter-spacing: 1px;
  opacity: 0.4;
  margin-bottom: 20px;
}

.archive a {
  display: block;
  color: #e6e6e6;
  text-decoration: none;
  opacity: 0.55;
  margin-bottom: 10px;
  transition: opacity 0.2s;
}

.archive a:hover {
  opacity: 1;
}

/* ---------------------------
   モバイル対応
---------------------------- */
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .archive {
    border-left: none;
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 30px 20px;
  }
}