/* public/assets/style.css */
:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --brand: #4f46e5;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans JP", "Apple Color Emoji","Segoe UI Emoji";
  color: var(--text);
  background: linear-gradient(180deg, #eef2ff 0%, var(--bg) 35%, #ffffff 100%);
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 980px; margin: 0 auto; padding: 24px; }

.nav {
  display:flex; justify-content:space-between; align-items:center;
  padding: 16px 0;
}
.nav .right a { margin-left: 14px; font-weight: 600; }

.hero { padding: 24px 0 10px; }
.hero h1 { font-size: 44px; margin: 0 0 8px; }
.hero p { margin: 0; color: var(--muted); }

.grid { display:grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 18px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 10px 30px rgba(17,24,39,0.08);
}
.card h2 { margin: 0 0 10px; }
.card p { margin: 0 0 14px; color: var(--muted); }

.btn {
  display:inline-flex; align-items:center; justify-content:center;
  border-radius: 999px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
  font-weight: 700;
}
.btn.primary { background: var(--brand); color: #fff; border-color: transparent; }
.btnrow .btn { margin-right: 10px; }

.form { max-width: 520px; }
.input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
}
textarea { min-height: 140px; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }

.small { font-size: 13px; color: var(--muted); }
.badge { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: #eef2ff; color: var(--brand); }

.chatbox {
  border: 1px dashed var(--line);
  border-radius: 16px;
  padding: 14px;
  background: rgba(255,255,255,0.9);
  height: 360px;
  overflow: auto;
  white-space: pre-wrap;
}
.row { display:flex; gap: 10px; margin-top: 10px; }
.row > * { flex: 1; }
.footer { padding: 18px 0; color: var(--muted); font-size: 13px; }

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
}

/* =========================
   Admin UI & Mobile Improvements
   ========================= */

/* --- Admin readability (spacing + separators) --- */
.card details {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.card details:last-of-type { border-bottom: none; }
.card details > div { margin-top: 14px; }

.card label {
  display: block;
  margin-top: 14px;
  margin-bottom: 6px;
  font-weight: 600;
}

.card textarea,
.card input,
.card select { margin-bottom: 12px; }

.card .row { margin-top: 14px; gap: 10px; }

.card details > summary {
  padding: 6px 0;
  font-size: 1.05em;
}

/* --- Responsive: override inline grid styles on small screens --- */
@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr !important; }
}

/* --- Mobile-first tweaks (phones) --- */
@media (max-width: 600px) {
  .container { padding: 14px; }
  .nav { flex-wrap: wrap; gap: 10px; padding: 12px 0; }
  .nav .right a { margin-left: 0; margin-right: 12px; display: inline-block; }
  .card { padding: 16px; border-radius: 18px; }
  .card h2 { line-height: 1.25; }
  .small { line-height: 1.6; }

  /* Buttons/rows: stack for easier tapping */
  .row { flex-direction: column; }
  .row > * { flex: 0 0 auto; width: 100%; }
  .btn { width: 100%; }

  /* Preview box: shorter on mobile */
  .chatbox { height: 240px; }

  /* Inputs: bigger tap targets + iOS zoom prevention */
  textarea, input, select { font-size: 16px; }
}