:root {
  --bg: #f2f4f8;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --accent: #0b7285;
  --accent-2: #2f9e44;
  --danger: #c92a2a;
  --border: #dbe4ee;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, #d0ebff 0%, transparent 45%),
    radial-gradient(circle at bottom left, #e6fcf5 0%, transparent 45%),
    var(--bg);
}

.container {
  width: min(1100px, 94vw);
  margin: 1.2rem auto 2rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}

h1, h2 {
  margin: 0 0 .7rem;
}

p {
  margin: .3rem 0;
}

.muted {
  color: var(--muted);
}

.score {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.question-word {
  font-size: 2.2rem;
  font-weight: 700;
  margin: .6rem 0 .2rem;
}

.grid-2 {
  display: grid;
  gap: 1rem;
}

.options-wrap {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: .7rem;
  margin: .8rem 0;
}

button, .btn {
  border: 1px solid #b8d0db;
  border-radius: 10px;
  padding: .62rem .8rem;
  cursor: pointer;
  font-weight: 600;
  background: #f8fafc;
}

button:hover, .btn:hover {
  background: #eef6fb;
}

.option-btn {
  text-align: left;
}

.btn-primary {
  background: #d8f5ff;
  border-color: #8cd7f5;
}

.msg {
  min-height: 1.4rem;
}

.msg[data-type="success"] {
  color: var(--accent-2);
}

.msg[data-type="error"] {
  color: var(--danger);
}

form {
  display: grid;
  gap: .5rem;
}

input {
  width: 100%;
  padding: .6rem .7rem;
  border-radius: 8px;
  border: 1px solid #cfd8e3;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: .45rem;
  border-bottom: 1px solid #e6edf5;
}

@media (min-width: 960px) {
  .grid-2 {
    grid-template-columns: 1.4fr 1fr;
  }
}