:root {
  --ink: #1B365D;
  --accent: #487A7B;
  --muted: #707372;
  --border: #D8DBDA;
  --bg: #F7F8F8;
  --card: #FFFFFF;
  --danger: #B83A4B;
  --success: #009681;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Nunito Sans', 'Source Sans 3', system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

main.wrap {
  max-width: 400px;
  margin: 10vh auto;
  padding: 0 20px;
}
main.wrap.wide {
  max-width: 720px;
  margin: 4vh auto;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
}

h2 { font-size: 1.15rem; margin-top: 0; }
p.sub { color: var(--muted); font-size: 0.9rem; margin-top: -8px; }

label { display: block; font-size: 0.85rem; font-weight: 600; margin: 14px 0 4px; }
input[type=email], input[type=password], input[type=text] {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
}

button.primary {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 0.95rem;
  cursor: pointer;
  margin-top: 18px;
}
button.primary:hover { opacity: 0.92; }

.toggle-row { margin-top: 14px; font-size: 0.85rem; }
.toggle-row label { display: inline; font-weight: 400; margin: 0; }
.toggle-row input { width: auto; margin-right: 6px; }

.error { color: var(--danger); font-size: 0.85rem; margin-top: 12px; }
.notice { color: var(--success); font-size: 0.85rem; margin-top: 12px; }

.links { margin-top: 16px; font-size: 0.85rem; text-align: center; }
a { color: var(--accent); }

button.secondary {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 0.9rem;
  cursor: pointer;
}
.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0 0 12px;
}
.hint { color: var(--muted); font-size: 0.82rem; margin: 4px 0 0; }

/* ── Week list ────────────────────────────────────────────────────────────── */
.weeks-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.weeks-header h2 { margin-bottom: 0; }
.weeks-header > div { display: flex; align-items: center; gap: 10px; }

.week-list { list-style: none; margin: 16px 0 0; padding: 0; }
.week-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 8px;
  cursor: pointer;
}
.week-item:hover { background: rgba(72, 122, 123, 0.06); }
.week-item.locked { cursor: default; opacity: 0.6; }
.week-item.locked:hover { background: none; }
.week-item-main { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.week-item-title { font-size: 0.95rem; font-weight: 600; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge.locked { background: #70737222; color: var(--muted); }
.badge.open { background: #00968122; color: var(--success); }
.badge.in_progress { background: #F3D54E33; color: #8a6d00; }
.badge.completed { background: #48787322; color: var(--accent); }
.badge.skipped { background: #70737222; color: var(--muted); }

/* ── Chat ─────────────────────────────────────────────────────────────────── */
.chat-card { display: flex; flex-direction: column; }
.chat-messages {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  margin: 14px 0;
  max-height: 55vh;
  min-height: 200px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chat-msg {
  max-width: 85%;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 0.92rem;
  white-space: pre-wrap;
}
.chat-msg.role-assistant { background: var(--bg); border: 1px solid var(--border); align-self: flex-start; }
.chat-msg.role-user { background: var(--accent); color: #fff; align-self: flex-end; }

.chat-input-row { display: flex; gap: 10px; align-items: flex-end; }
.chat-input-row textarea {
  flex: 1;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
  resize: vertical;
}
.chat-input-row button.primary { width: auto; margin-top: 0; white-space: nowrap; }

#chat-complete-btn { margin-top: 14px; }