html,
body {
  overflow-x: hidden;
  max-width: 100vw;
}

body {
  font-family: 'Meiryo', 'Hiragino Sans', sans-serif;
  font-size: 1.1em;
  line-height: 1.5;
  color: #f0f0f0;
  background-color: #1a1a1a;
  padding: 20px;
  margin: 0;
}

h2,
h3,
h4 {
  margin-top: 0.5em;
  margin-bottom: 0.5em;
  font-weight: bold;
}

h2 {
  font-size: 1.5em;
  border-bottom: 2px solid #ff8c00;
  padding-bottom: 5px;
}

h3 {
  font-size: 1.3em;
  padding-left: 5px;
  border-left: 4px solid #ff8c00;
}

h4 {
  font-size: 1.1em;
  color: #ff8c00;
}

p {
  font-size: 1em;
  margin: 5px;
}


.container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 15px;
  margin: 15px 0;
}

.container2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(600px, 1fr));
  gap: 15px;
  margin: 15px 0;
}

.footer {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(1000px, 1fr));
  gap: 15px;
  margin: 15px 0;
}


.item {
  border-radius: 8px;
  padding: 15px;
  margin-bottom: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
}

.item:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}



/* blue theme */
.d_blue {
  background-color: #1e3a8a;
  border-left: 5px solid #60a5fa;
}

.d_blue h3,
.d_blue h4 {
  color: #60a5fa;
  border-color: #60a5fa;
}

/* purple theme */
.d_purple {
  background-color: #4c1d95;
  border-left: 5px solid #c084fc;
}

.d_purple h3,
.d_purple h4 {
  color: #c084fc;
  border-color: #c084fc;
}

/* green theme */
.d_green {
  background-color: #064e3b;
  border-left: 5px solid #34d399;
}

.d_green h3,
.d_green h4 {
  color: #34d399;
  border-color: #34d399;
}

/* red theme */
.d_red {
  background-color: #7f1d1d;
  border-left: 5px solid #f87171;
}

.d_red h3,
.d_red h4 {
  color: #f87171;
  border-color: #f87171;
}

/* yellow theme */
.d_yellow {
  background-color: #78350f;
  border-left: 5px solid #fbbf24;
}

.d_yellow h3,
.d_yellow h4 {
  color: #fbbf24;
  border-color: #fbbf24;
}

/* cyan theme */
.d_cyan {
  background-color: #164e63;
  border-left: 5px solid #22d3ee;
}

.d_cyan h3,
.d_cyan h4 {
  color: #22d3ee;
  border-color: #22d3ee;
}

/* pink theme */
.d_pink {
  background-color: #831843;
  border-left: 5px solid #f472b6;
}

.d_pink h3,
.d_pink h4 {
  color: #f472b6;
  border-color: #f472b6;
}

/* dark theme */
.d_dark {
  background-color: #232f38;
  border-left: 5px solid #006590;
}

.d_dark h3,
.d_dark h4 {
  color: #f472b6;
  border-color: #f472b6;
}

/* lime theme */
.d_lime {
  background-color: #365314;
  border-left: 5px solid #a3e635;
}

.d_lime h3,
.d_lime h4 {
  color: #a3e635;
  border-color: #a3e635;
}

th,
td {
  color: #ffffff;
  /* セル内のテキスト色 */
  padding: 8px;
  text-align: left;
}

ul {
  padding-left: 1.2em;
  margin: 0.5em 0;
}

li {
  color: #f0f0f0;
  margin-bottom: 0.3em;
  list-style-type: square;
}

.todo {
  color: #ff8c00;
  font-weight: bold;
}

.todo::before {
  content: "★ ";
}

a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted;
  transition: color 0.2s;
}

a:hover {
  color: #ff8c00;
  border-bottom: 1px solid;
}

.artist {
  color: #ff8c00;
  font-weight: bold;
}

.htitle {
  background-color: #ff8c00;
  color: #1a1a1a;
  padding: 8px 12px;
  border-radius: 4px;
  display: inline-block;
  margin-top: 10px;
  font-weight: bold;
}

img {
  width: 50%;
  /* 元のサイズの50%に */
  height: auto;
  /* アスペクト比を維持 */
}

.musicality {
  width: 80%;
  height: auto;
}

iframe {
  width: 50%;
  height: auto;
}

.icon-mname::before {
  content: "🎵";
  /* Unicode文字 */
  margin-right: 8px;
  color: green;
}

.icon-artist::before {
  content: "🎶";
  /* Unicode文字 */
  margin-right: 8px;
  color: green;
}

.icon-canta::before {
  content: "🎙";
  /* Unicode文字 */
  margin-right: 8px;
  color: green;
}

.icon-bareha::before {
  content: "⚢";
  /* Unicode文字 */
  margin-right: 11px;
  color: green;
}


/* または絵文字 */
.emoji-text::before {
  content: "📌";
  margin-right: 2px;
}

/* Responsive adjustments */
@media (max-width: 430px) {
  .container {
    grid-template-columns: 1fr;
  }

  body {
    font-size: 1.2em;
    padding: 10px;
  }
}