:root {
  --emerald: #047857;
  --emerald-dark: #065f46;
  --emerald-light: #d1fae5;
  --bg: #f8faf9;
  --border: #e5e7eb;
  --text: #1f2937;
  --text-muted: #6b7280;
  --danger: #dc2626;
  --radius: 14px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Segoe UI', Roboto, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--emerald-dark); }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Top nav */
.topnav {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  position: sticky; top: 0; z-index: 50;
}
.topnav .inner { display:flex; align-items:center; justify-content:space-between; }
.topnav .brand { font-weight:700; font-size:1.15rem; color:var(--emerald-dark); text-decoration:none; }
.topnav nav a { margin-left: 18px; text-decoration:none; color: var(--text); font-size:0.92rem; }
.topnav .btn { margin-left: 18px; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 10px;
  border: none;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}
.btn-primary { background: var(--emerald); color: #fff; }
.btn-primary:hover { background: var(--emerald-dark); }
.btn-outline { background:#fff; border:1px solid var(--border); color:var(--text); }
.btn-outline:hover { border-color:var(--emerald); color:var(--emerald-dark); }
.btn-block { width:100%; }
.btn-lg { padding: 14px 26px; font-size: 1rem; }
.btn-sm { padding: 6px 14px; font-size: 0.82rem; }
.btn-danger { background:#fff; border:1px solid var(--danger); color:var(--danger); }

/* Cards / grids */
.card {
  background:#fff; border:1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 1px 2px rgba(0,0,0,0.03); padding: 22px;
}
.grid { display:grid; gap:16px; }
.grid-cats { grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); }
.grid-templates { grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); }

.cat-card, .tpl-card {
  background:#fff; border:1px solid var(--border); border-radius: var(--radius);
  padding: 20px; text-decoration:none; color:var(--text); display:block;
  transition: box-shadow .15s, border-color .15s;
}
.cat-card:hover, .tpl-card:hover { border-color: var(--emerald); box-shadow: 0 4px 14px rgba(4,120,87,0.08); }
.cat-card .icon { font-size: 1.8rem; margin-bottom: 8px; }
.tpl-card h3 { margin: 0 0 6px; font-size: 1rem; }
.tpl-card p { margin:0; font-size: 0.85rem; color: var(--text-muted); }

.hint { font-size: 0.82rem; color: var(--text-muted); }
.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; font-size: 0.9rem; }
.alert-success { background: var(--emerald-light); color: var(--emerald-dark); }
.alert-danger { background: #fef2f2; color: var(--danger); }

/* Forms */
.form-group { margin-bottom: 16px; }
label { display:block; font-weight:600; font-size:0.88rem; margin-bottom:6px; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=tel], textarea, select {
  width:100%; padding: 11px 13px; border:1px solid var(--border); border-radius: 10px;
  font-size: 0.94rem; font-family: inherit;
}
textarea { resize: vertical; min-height: 90px; }
.field-error { color: var(--danger); font-size: 0.8rem; margin-top: 4px; }

/* Application form + preview split */
.builder-shell { display:grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items:start; }
.preview-pane { position: sticky; top: 90px; }

/* A4 preview */
.a4-sheet {
  background:#fff; width:100%; max-width: 620px; margin: 0 auto;
  aspect-ratio: 210 / 297; padding: 44px 40px; border:1px solid var(--border);
  box-shadow: 0 2px 14px rgba(0,0,0,0.06); font-family: 'Times New Roman', serif;
  font-size: 0.82rem; line-height:1.6; overflow-y:auto; color:#111;
}
.a4-sheet .a4-date { text-align:right; margin-bottom: 18px; }
.a4-sheet .a4-recipient { margin-bottom: 18px; }
.a4-sheet .a4-subject { font-weight:700; margin-bottom: 14px; }
.a4-sheet .a4-body { white-space: pre-wrap; }
.a4-sheet .a4-sign { margin-top: 40px; }

.mobile-preview-toggle { display:none; }

footer.site-footer {
  background: #0b2e24; color: #cdeee1; padding: 40px 0 20px; margin-top: 60px; font-size: 0.85rem;
}
footer.site-footer a { color:#cdeee1; text-decoration:none; }
footer.site-footer .cols { display:grid; grid-template-columns: repeat(auto-fit,minmax(160px,1fr)); gap: 20px; margin-bottom: 24px; }
footer.site-footer h4 { color:#fff; font-size:0.85rem; margin: 0 0 10px; }
footer.site-footer .bottom { border-top:1px solid rgba(255,255,255,0.12); padding-top:16px; text-align:center; color:#9fd6bf; }

@media (max-width: 900px) {
  .builder-shell { grid-template-columns: 1fr; }
  .preview-pane { position: static; }
  .preview-pane.hidden-mobile { display:none; }
  .mobile-preview-toggle { display:block; text-align:center; margin: 14px 0; }
}