:root {
  --bg: #f3efe6;
  --ink: #1a2430;
  --muted: #5c6b7a;
  --line: #d5cbb8;
  --card: #fffdf8;
  --accent: #0f5c4c;
  --accent-2: #c45c26;
  --chat-me: #e7f2ee;
  --chat-them: #f7f1e6;
  --shadow: 0 10px 30px rgba(26, 36, 48, 0.08);
  --radius: 18px;
  --font: "Segoe UI", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15, 92, 76, 0.08), transparent 40%),
    linear-gradient(180deg, #f8f4ec 0%, var(--bg) 100%);
  min-height: 100vh;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 5;
}

.brand-mark {
  font-weight: 760;
  letter-spacing: 0.02em;
  font-size: 1.15rem;
}
.brand-sub {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
}

.nav { display: flex; gap: 0.4rem; }
.nav-btn, .station-btn, .btn {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  cursor: pointer;
  font: inherit;
}
.nav-btn.is-active, .station-btn.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.btn.ghost { background: transparent; }

main {
  width: min(1100px, calc(100% - 2rem));
  margin: 1.5rem auto 3rem;
}

.view { display: none; }
.view.is-visible { display: block; }

h1 { margin: 0 0 0.5rem; font-size: clamp(1.5rem, 3vw, 2rem); }
.lead { color: var(--muted); max-width: 55ch; }
.muted { color: var(--muted); }

.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.case-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  box-shadow: var(--shadow);
  text-align: left;
  cursor: pointer;
  font: inherit;
  color: inherit;
}
.case-card:hover { border-color: var(--accent); }
.case-card h2 { margin: 0 0 0.35rem; font-size: 1.1rem; }
.tag {
  display: inline-block;
  margin-top: 0.7rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(196, 92, 38, 0.12);
  color: var(--accent-2);
  font-size: 0.78rem;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}
.panel.grow { flex: 1; }

.sim-head {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.stations {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0;
  margin: 0 0 1rem;
}

.station-panel { display: none; gap: 1rem; }
.station-panel.is-visible {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(0, 1.4fr);
}
#station-eval.is-visible { grid-template-columns: 1fr; }

.hints ul { padding-left: 1.1rem; margin: 0.4rem 0 1rem; color: var(--muted); }
.hints h2 { font-size: 0.95rem; margin: 0 0 0.4rem; }

.rules { margin-top: 0.4rem; }
.rules summary { cursor: pointer; font-weight: 650; }
.rules p { color: var(--muted); font-size: 0.88rem; }
.rules-table-wrap { overflow-x: auto; }
.rules table { width: 100%; border-collapse: collapse; font-size: 0.82rem; margin-top: 0.4rem; }
.rules th, .rules td {
  text-align: left;
  vertical-align: top;
  padding: 0.35rem 0.4rem;
  border-bottom: 1px solid var(--line);
}
.coverage-list { list-style: none; padding: 0; margin: 0.8rem 0 0; }
.coverage-list li { padding: 0.5rem 0; border-bottom: 1px solid var(--line); line-height: 1.4; }
.coverage-list .is-covered strong { color: var(--accent); }
#station-eval.is-visible { align-content: start; }
#coverage-why { color: var(--muted); margin-bottom: 0; }

.hint-bar { display: flex; justify-content: flex-end; margin-bottom: 0.55rem; }
.hint-box {
  margin-bottom: 0.75rem;
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  background: rgba(15, 92, 76, 0.08);
  border: 1px dashed var(--accent);
}
.hint-box p { margin: 0 0 0.45rem; }
.hint-box .btn { padding: 0.35rem 0.75rem; font-size: 0.85rem; }
#anamnesis-hint-toggle[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.chat-log {
  min-height: 280px;
  max-height: 420px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 0.8rem;
}
.bubble {
  max-width: 90%;
  padding: 0.7rem 0.85rem;
  border-radius: 14px;
  line-height: 1.4;
}
.bubble.me { align-self: flex-end; background: var(--chat-me); }
.bubble.them { align-self: flex-start; background: var(--chat-them); }
.bubble .who { display: block; font-size: 0.75rem; color: var(--muted); margin-bottom: 0.2rem; }

.composer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6rem;
  align-items: end;
}
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem;
  font: inherit;
  resize: vertical;
  background: #fff;
}

#eval-form label {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  margin: 0.55rem 0;
}
.score {
  margin-top: 1rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
}

.foot {
  text-align: center;
  color: var(--muted);
  padding: 1rem;
  font-size: 0.85rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

@media (max-width: 800px) {
  .station-panel.is-visible { grid-template-columns: 1fr; }
  .composer { grid-template-columns: 1fr; }
}