body{
  margin:0;
  font-family:Arial, sans-serif;
  background:#f1f5f9;
  color:#000000;
}

/* ヘッダー */
.header{
  background:#00bafa;
  padding:20px;
  border-bottom:1px solid #1e293b;
}

.logo{
  font-size:28px;
  font-weight:bold;
  color:#000000;
}

/* カードUI */
.card{
  background:#ffffff;
  padding:20px;
  margin:20px;
  border-radius:12px;
  box-shadow:0 4px 10px rgba(0,0,0,0.4);
}

/* タイトル */
h2{
  margin-top:0;
  color:#000bff;
}

/* 入力 */
input{
  display:block;
  margin:8px 0 16px 0;
  padding:8px;
  border-radius:6px;
  border:none;
}

/* ボタン */
button{
  background:#3b82f6;
  color:white;
  border:none;
  padding:10px 16px;
  border-radius:8px;
  cursor:pointer;
}

button:hover{
  background:#2563eb;
}

.timeHeader{
display:grid;
grid-template-columns:70px 90px 70px auto;
align-items:center;
gap:10px;
padding:4px 0;
font-weight:bold;
border-bottom:1px solid #ccc;
margin-bottom:5px;
}

.timeRow{
display:grid;
grid-template-columns:70px 90px 70px auto;
align-items:center;
gap:10px;
padding:6px 0;
border-bottom:1px solid #e5f6ff;
}

.timeHeader{
font-weight:bold;
border-bottom:1px solid #ccc;
margin-bottom:5px;
}

.colSolved{
width:70px;
text-align:center;
}

.colTime{
width:80px;
}

.colPoint{
width:70px;
text-align:center;
font-weight:bold;
color:#0088cc;
}

.colButtons{
margin-left:auto;
display:flex;
gap:5px;
}

.colIndex{
width:30px;
text-align:right;
color:#666;
}

.timeRow:hover{
background:#f0fbff;
}

.dnf{
color:#ff4444;
font-weight:bold;
}

.footer{
  text-align:center;
  padding:20px;
  margin-top:40px;
  font-size:14px;
  color:#555;
}

.footer a{
  color:#0088cc;
  text-decoration:none;
}

.footer a:hover{
  text-decoration:underline;
}