* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f5f6f8;
  color: #1a1a1a;
  padding-bottom: 2rem;
}
header {
  background: #1b3a6b;
  color: #fff;
  padding: 1.2rem 1rem 1rem;
}
header h1 { margin: 0; font-size: 1.3rem; }
header .sub { margin: 0.3rem 0 0; font-size: 0.8rem; opacity: 0.85; }

#intro {
  background: #fff;
  margin: 0.8rem;
  padding: 1rem;
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
#intro h2 { margin: 0 0 0.5rem; font-size: 1.05rem; color: #1b3a6b; }
#intro p { margin: 0.4rem 0; font-size: 0.85rem; line-height: 1.4; }
.intro-points {
  margin: 0.6rem 0;
  padding-left: 1.2rem;
  font-size: 0.85rem;
  line-height: 1.6;
}
.intro-disclaimer { font-size: 0.72rem; color: #888; }

#search-form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  padding: 1rem;
  background: #fff;
  margin: 0.8rem;
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
#search-form label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  font-weight: 600;
  gap: 0.3rem;
}
#search-form input, #search-form select {
  padding: 0.6rem;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 8px;
}
#search-form button {
  padding: 0.8rem;
  font-size: 1rem;
  font-weight: 700;
  background: #1b3a6b;
  color: #fff;
  border: none;
  border-radius: 8px;
}

#status { padding: 0 1rem; font-size: 0.85rem; color: #555; }

#fit-legend {
  background: #fff;
  margin: 0.8rem;
  padding: 0.8rem 1rem;
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  font-size: 0.82rem;
  line-height: 1.4;
}
#fit-legend summary {
  font-weight: 600;
  color: #1b3a6b;
  cursor: pointer;
}
#fit-legend p { margin: 0.5rem 0; }
#fit-legend ul { margin: 0.4rem 0; padding-left: 1.2rem; }
#fit-legend li { margin: 0.3rem 0; }

#summary-wrap { padding: 0.5rem 0.8rem 0; }
.summary-list { display: flex; flex-direction: column; gap: 0.5rem; }
.summary-card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  padding: 0.6rem 0.7rem;
  cursor: pointer;
}
.summary-card:active,
.summary-card.selected { background: #e8edf7; }
.summary-card-head { display: flex; align-items: center; gap: 0.45rem; }
.fit-dot { width: 0.65rem; height: 0.65rem; border-radius: 50%; flex: none; }
.summary-school-name { font-weight: 600; font-size: 0.9rem; }
.summary-meta { font-size: 0.72rem; color: #777; margin: 0.15rem 0 0.4rem 1.1rem; }
.group-rows { display: flex; flex-direction: column; gap: 0.1rem; margin-left: 1.1rem; }
.group-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  padding: 0.2rem 0;
  border-top: 1px dashed #eee;
}
.group-row:first-child { border-top: none; }
.group-name { font-weight: 600; color: #555; }
.group-range { color: #1b3a6b; font-weight: 600; }
#summary-wrap .hint { font-size: 0.72rem; color: #888; margin: 0.4rem 0 0; }

#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.72);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
}
#modal-overlay[hidden] { display: none; }

#results {
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 0 0.8rem calc(0.8rem + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.card {
  background: #fff;
  border-radius: 10px;
  padding: 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  position: relative;
}
.detail-close {
  position: absolute;
  top: 0.5rem;
  right: 0.6rem;
  background: none;
  border: none;
  font-size: 1.4rem;
  line-height: 1;
  color: #888;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
}
.card h2 { margin: 0 0 0.3rem; font-size: 1.05rem; }
.card .tier { font-weight: 700; font-size: 0.95rem; margin-bottom: 0.4rem; }
.card .score { font-size: 0.78rem; color: #555; margin-bottom: 0.5rem; }
.card .row { font-size: 0.82rem; margin: 0.15rem 0; }
.card .row b { font-weight: 600; }
.card table { width: 100%; border-collapse: collapse; margin: 0.5rem 0; font-size: 0.8rem; }
.card table th, .card table td { border: 1px solid #e2e2e2; padding: 0.3rem; text-align: center; }
.card .flags span {
  display: inline-block;
  background: #eef1f6;
  border-radius: 6px;
  padding: 0.15rem 0.5rem;
  font-size: 0.72rem;
  margin: 0.1rem 0.2rem 0 0;
}
.card .source { font-size: 0.7rem; color: #888; margin-top: 0.5rem; }
.card .disclaimer { font-size: 0.7rem; color: #b45309; margin-top: 0.3rem; }
.card a { color: #1b3a6b; word-break: break-all; }

@media (max-width: 420px) {
  header { padding: 1rem 0.8rem 0.8rem; }
  header h1 { font-size: 1.15rem; }
  #intro { margin: 0.6rem; padding: 0.8rem; }
  #intro h2 { font-size: 0.95rem; }
  #search-form { margin: 0.6rem; padding: 0.8rem; }
  #search-form input, #search-form select, #search-form button { font-size: 0.95rem; }
  #fit-legend { margin: 0.6rem; padding: 0.7rem 0.8rem; font-size: 0.78rem; }
  .summary-school-name { font-size: 0.85rem; }
  .card { padding: 0.8rem; }
}