:root {
  --primary: #2f6f5e;
  --primary-dark: #21503f;
  --bg: #f6f5f1;
  --card: #ffffff;
  --border: #e0ddd5;
  --text: #2a2a28;
  --muted: #7a776e;
  --danger: #b3453b;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.hidden { display: none !important; }

/* Login */
#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-box {
  background: var(--card);
  padding: 32px 24px;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  width: 100%;
  max-width: 340px;
  text-align: center;
}
.login-box h1 { margin: 0 0 4px; color: var(--primary-dark); }
.login-box form { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }

/* Topbar */
.topbar {
  background: var(--primary-dark);
  color: #fff;
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.topbar h1 { font-size: 18px; margin: 0; }
.topbar nav { display: flex; gap: 8px; }

/* Bottom nav (mobile-first primary navigation) */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: var(--primary-dark);
  padding: 6px calc(env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) calc(env(safe-area-inset-left));
  box-shadow: 0 -2px 8px rgba(0,0,0,0.15);
  z-index: 10;
}
.bottom-nav-btn {
  flex: 1;
  background: transparent;
  color: rgba(255,255,255,0.7);
  border-radius: 8px;
  padding: 8px 4px;
  font-size: 12px;
  font-weight: 600;
  margin: 0 2px;
}
.bottom-nav-btn:hover { background: rgba(255,255,255,0.12); }
.bottom-nav-btn.active { background: #fff; color: var(--primary-dark); }

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  background: var(--primary);
  color: #fff;
  transition: background 0.15s;
}
button:hover { background: var(--primary-dark); }
button.nav-btn { background: rgba(255,255,255,0.15); }
button.nav-btn.active { background: #fff; color: var(--primary-dark); }
button.danger { background: var(--danger); }
button.success { background: var(--primary); font-weight: bold; }
button.secondary { background: #ccc9bf; color: #2a2a28; }
button.small { padding: 4px 8px; font-size: 12px; }

input, select {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  width: 100%;
}

main { max-width: 900px; margin: 0 auto; padding: 16px; padding-bottom: 90px; }

.panel {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}
.panel-section { border-top: 1px solid var(--border); margin-top: 20px; padding-top: 16px; }

.muted { color: var(--muted); font-size: 13px; }
.error { color: var(--danger); font-size: 13px; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}
.form-grid .full { grid-column: 1 / -1; }
.form-inline { display: flex; gap: 8px; margin: 12px 0; flex-wrap: wrap; }
.form-inline input,
.form-inline select {
  flex: 1;
  width: auto;
  min-width: 120px;
}

.list { list-style: none; padding: 0; margin: 0; }
.list li {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}
.list li .item-meta { color: var(--muted); font-size: 12px; }

.list-row-main { flex: 1; min-width: 0; }
.list-row-main[data-action="open"] { cursor: pointer; }
.list-row-main[data-action="open"]:hover { text-decoration: underline; }
.list-row-actions { display: flex; gap: 6px; flex-shrink: 0; }

.back-btn { background: none; color: var(--primary-dark); padding: 4px 0; margin-bottom: 8px; }
.back-btn:hover { background: none; text-decoration: underline; }

/* Structure tree */
.house-block, .floor-block, .room-block {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
  background: #fdfcfa;
}
.floor-block { background: #fbfaf7; }
.room-block { background: #f8f7f3; }
.block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.block-header h4, .block-header h5, .block-header strong { margin: 0; }

.window-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: start;
  padding: 8px;
  border: 1px dashed var(--border);
  border-radius: 6px;
  margin-bottom: 6px;
  font-size: 13px;
}
.window-row-actions { display: flex; gap: 6px; }
.window-row .checks { display: flex; gap: 10px; flex-wrap: wrap; margin: 4px 0; }
.window-row label { font-weight: normal; font-size: 12px; display: flex; align-items: center; gap: 4px; }

.new-window-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
  margin-top: 8px;
}
.new-window-form .checks { grid-column: 1 / -1; display: flex; gap: 12px; flex-wrap: wrap; }
.new-window-form .full { grid-column: 1 / -1; }

table.price-table { width: 100%; border-collapse: collapse; }
table.price-table th, table.price-table td {
  text-align: left;
  padding: 8px;
  border-bottom: 1px solid var(--border);
}
table.price-table input { width: 100px; }

.quote-list li { flex-direction: column; align-items: flex-start; }
.pdf-links { display: flex; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.pdf-links a {
  font-size: 12px;
  color: var(--primary-dark);
  text-decoration: none;
  border: 1px solid var(--primary);
  padding: 4px 8px;
  border-radius: 6px;
}

.quote-edit-body { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.quote-item-row {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  background: #fdfcfa;
}
.quote-item-row .item-desc {
  width: 100%;
  resize: vertical;
  font-family: inherit;
  font-size: 14px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 8px;
}
.quote-item-fields {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}
.quote-item-fields .field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.quote-item-fields input { width: 90px; padding: 8px; font-size: 14px; }
.quote-item-fields .item-total-value {
  min-width: 70px;
  padding: 8px 0;
  font-size: 14px;
  font-weight: bold;
  color: var(--primary-dark);
  text-transform: none;
}
.quote-item-fields .item-remove { margin-left: auto; align-self: center; }

.quote-edit-total { font-size: 15px; margin: 14px 0; }
.quote-edit-total-value { color: var(--primary-dark); }

.pdf-preview-wrap {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 10px;
}
.pdf-preview-frame {
  width: 100%;
  height: 70vh;
  min-height: 420px;
  border: none;
  display: block;
  background: #fff;
}

@media (max-width: 480px) {
  .quote-item-fields input { width: 100%; }
  .quote-item-fields .field { flex: 1 1 40%; }
  .quote-item-fields .item-remove { margin-left: 0; flex: 0 0 auto; }
}

.logo-preview-wrap { margin: 12px 0; }
.logo-preview {
  max-width: 160px;
  max-height: 160px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  padding: 6px;
  display: block;
}
#logo-file { margin-bottom: 10px; }
#settings-message { margin-top: 10px; }

@media (max-width: 480px) {
  .form-grid { grid-template-columns: 1fr; }
  .new-window-form { grid-template-columns: 1fr; }
}