:root {
  --bg1: #070b1f;
  --bg2: #11183d;
  --panel: rgba(16, 26, 64, 0.8);
  --line: rgba(151, 176, 255, 0.35);
  --text: #eaf2ff;
  --accent: #59d0ff;
  --accent2: #7f8cff;
  --danger: #ef546f;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  font-family: "SF Pro Text", "Segoe UI", sans-serif;
  background: radial-gradient(1200px 600px at 20% 0%, #1c2f78 0%, transparent 70%),
              radial-gradient(1000px 500px at 90% 10%, #14345d 0%, transparent 65%),
              linear-gradient(160deg, var(--bg1), var(--bg2));
  min-height: 100vh;
}
.stars {
  position: fixed; inset: 0; pointer-events: none;
  background-image: radial-gradient(2px 2px at 20px 30px, #fff, transparent),
                    radial-gradient(1px 1px at 130px 80px, #c9e8ff, transparent),
                    radial-gradient(1.5px 1.5px at 240px 150px, #fff, transparent);
  background-size: 320px 220px;
  opacity: 0.35;
}
.container { max-width: 980px; margin: 14px auto; padding: 12px; position: relative; z-index: 1; }
.hero h1 { margin: 0 0 8px; font-size: clamp(24px, 5vw, 34px); }
.hero p { margin: 0 0 8px; opacity: .9; }
.admin-link { color: #9fe7ff; text-decoration: none; font-size: 14px; }
.card {
  margin-top: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(8px);
  padding: 16px;
  box-shadow: 0 14px 34px rgba(0,0,0,.3);
}
.hidden { display: none; }
.row { display: flex; gap: 12px; align-items: center; }
.wrap { flex-wrap: wrap; }
.between { justify-content: space-between; }
input, textarea, select {
  width: 100%; margin-top: 6px; padding: 12px;
  border-radius: 10px; border: 1px solid #5776ce;
  color: var(--text); background: rgba(9, 16, 43, .8);
}
textarea { min-height: 88px; }
button {
  border: 0; border-radius: 12px; padding: 10px 14px; cursor: pointer;
  color: #fff; background: linear-gradient(90deg, var(--accent2), var(--accent));
  box-shadow: 0 8px 18px rgba(89, 208, 255, .25);
}
button.secondary { background: rgba(69, 97, 176, 0.85); }
button.danger { background: linear-gradient(90deg, #b93e55, var(--danger)); }
button:disabled { opacity: .45; cursor: not-allowed; }
.options { display: grid; gap: 10px; margin: 14px 0; }
.option { text-align: left; background: rgba(32, 52, 114, .75); border: 1px solid #5f84df; }
.option.correct { background: rgba(38, 133, 90, .72); border-color: #78ffc2; }
.option.wrong { background: rgba(150, 57, 83, .72); border-color: #ff9ab3; }
small { min-height: 20px; display: block; opacity: .9; }
.q-image { width: 100%; max-height: 220px; object-fit: contain; background: rgba(255,255,255,.05); border-radius: 12px; border: 1px solid var(--line); margin: 6px 0 12px; }
.tag { display: inline-block; padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: 12px; opacity: .95; }

.kpi-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.kpi { border: 1px solid var(--line); border-radius: 10px; padding: 10px; background: rgba(26, 41, 93, 0.7); }
.kpi b { display: block; margin-top: 4px; font-size: 20px; }
.trend-box { margin-top: 8px; border: 1px dashed var(--line); border-radius: 10px; padding: 10px; max-height: 220px; overflow: auto; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.q-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px dashed rgba(151,176,255,.25); }
.error-box { border: 1px solid #ff9ab3; color: #ffd3de; background: rgba(145, 45, 68, 0.35); border-radius: 10px; padding: 8px; margin-bottom: 8px; }

table td, table th { border-color: rgba(151, 176, 255, 0.4); }

@media (max-width: 768px) {
  .container { padding: 10px; }
  .card { padding: 12px; border-radius: 14px; }
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid2 { grid-template-columns: 1fr; }
  button { width: 100%; }
  .q-row { flex-direction: column; align-items: flex-start; }
}