* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #020d26 0%, #05173e 100%);
  color: #eef3ff;
}
.page { max-width: 1040px; margin: 0 auto; padding: 28px 20px 48px; }
.card {
  background: rgba(10, 22, 58, 0.94);
  border: 1px solid rgba(119, 153, 255, 0.25);
  border-radius: 22px;
  padding: 22px;
  margin-bottom: 16px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.24);
}
.hero h1 { font-size: 52px; margin: 8px 0 12px; }
.hero p { font-size: 24px; color: #cfdbff; margin: 0; }
.eyebrow { font-size: 14px; letter-spacing: 0.24em; color: #9cb4ff; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
textarea {
  width: 100%; min-height: 130px; resize: vertical; border-radius: 16px; border: 1px solid #43598d;
  background: #1b2859; color: white; padding: 16px; font-size: 24px; margin-top: 12px;
}
.hint, .status, .counter { font-size: 18px; color: #cfdbff; }
.actions { display: flex; gap: 12px; margin-top: 12px; }
button {
  background: #80a7ff; color: #09122a; border: none; border-radius: 14px; padding: 14px 18px; font-size: 20px; cursor: pointer; font-weight: 700;
}
button.secondary { background: transparent; color: #eef3ff; border: 1px solid #6e86c6; }
button:disabled { opacity: 0.65; cursor: wait; }
.results-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.panel h3, .card h3, .card h2 { margin-top: 0; font-size: 22px; }
.box { min-height: 120px; border-radius: 16px; border: 1px solid #405381; background: #121f4d; padding: 16px; white-space: pre-wrap; }
.mono { font-family: "Courier New", monospace; font-size: 18px; }
.sections { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.section-card { border: 1px solid #405381; background: #121f4d; border-radius: 16px; padding: 14px; }
.section-card h4 { margin: 0 0 10px; color: #9cb4ff; }
.section-card p { margin: 0; line-height: 1.45; }
.explanation { margin: 0; padding-left: 24px; }
.explanation li { margin-bottom: 10px; font-size: 18px; }
@media (max-width: 900px) {
  .hero h1 { font-size: 36px; }
  .hero p { font-size: 20px; }
  .results-grid, .sections { grid-template-columns: 1fr; }
  textarea { font-size: 20px; }
}