/* ── Custom properties ─────────────────────────────────────── */
:root {
  --sidebar-bg: #faf8f5;
  --sidebar-border: #e8e2da;
  --text-primary: #2c2417;
  --text-secondary: #7a7062;
  --text-muted: #a69e93;
  --accent: #b8734a;
  --accent-hover: #9e6040;
  --accent-light: rgba(184, 115, 74, 0.08);
  --input-bg: #fff;
  --input-border: #ddd6cc;
  --input-focus: #b8734a;
  --card-bg: #fff;
  --card-border: #ece7e0;
  --card-hover: #f7f4f0;
  --section-rule: #e8e2da;
  --font-display: "Libre Baskerville", "Georgia", serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --radius-sm: 6px;
  --radius-md: 8px;
}

/* ── Reset & base ─────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html,
body {
  height: 100%;
  font-family: var(--font-body);
  color: var(--text-primary);
}
body {
  display: flex;
  background: #f5f5f5;
}

/* ── Sidebar ──────────────────────────────────────────────── */
#sidebar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 370px;
  max-width: 85vw;
  height: 100vh;
  overflow-y: hidden;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  padding: 0;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  will-change: transform;
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
}
#sidebar.open {
  transform: translateX(0);
}

/* Header area */
.sidebar-header {
  padding: 28px 24px 20px;
  border-bottom: 1px solid var(--section-rule);
}
#sidebar h1 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: space-between;
}
#sidebar h1 .title-icon {
  width: 20px;
  height: 20px;
  opacity: 0.5;
}

/* Section wrappers */
.sidebar-section {
  padding: 20px 24px;
  border-bottom: 1px solid var(--section-rule);
}
.sidebar-section:last-child {
  border-bottom: none;
}
/* ── Tab bar ──────────────────────────────────────────────── */
.tab-bar {
  display: flex;
  border-bottom: 1px solid var(--section-rule);
  background: var(--sidebar-bg);
  flex-shrink: 0;
}
.tab-btn {
  flex: 1;
  padding: 11px 0;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition:
    color 0.2s,
    border-color 0.2s;
}
.tab-btn:hover {
  color: var(--text-secondary);
}
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Tab panes ────────────────────────────────────────────── */
.tab-pane {
  display: none;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}
.tab-pane.active {
  display: flex;
}
.tab-pane[data-tab="layers"] {
  overflow-y: auto;
  padding: 16px 24px 12px;
}
.tab-pane[data-tab="layers"]::-webkit-scrollbar {
  width: 5px;
}
.tab-pane[data-tab="layers"]::-webkit-scrollbar-track {
  background: transparent;
}
.tab-pane[data-tab="layers"]::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 3px;
}
.tab-pane[data-tab="markers"] {
  overflow-y: auto;
  padding: 16px 24px 12px;
}
.tab-pane[data-tab="markers"]::-webkit-scrollbar {
  width: 5px;
}
.tab-pane[data-tab="markers"]::-webkit-scrollbar-track {
  background: transparent;
}
.tab-pane[data-tab="markers"]::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 3px;
}
.tab-pane[data-tab="add"] {
  overflow-y: auto;
  padding: 20px 24px 16px;
}

#sidebar h2 {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-muted);
  margin-bottom: 14px;
}
#sidebar h2#form-heading {
  margin-bottom: 16px;
}

/* ── Form ──────────────────────────────────────────────────── */
.form-group {
  margin-bottom: 14px;
}
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 5px;
  color: var(--text-secondary);
  letter-spacing: 0.2px;
}
.form-group input[type="text"],
.form-group input[type="url"] {
  width: 100%;
  padding: 9px 12px;
  font-size: 13px;
  font-family: var(--font-body);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.form-group input::placeholder {
  color: var(--text-muted);
}
.form-group input:focus {
  outline: none;
  border-color: var(--input-focus);
  box-shadow: 0 0 0 3px rgba(184, 115, 74, 0.1);
}

/* Coordinate feedback */
#coord-feedback {
  font-size: 11px;
  margin-top: 5px;
  min-height: 16px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  letter-spacing: 0.3px;
  transition: color 0.2s;
}
#coord-feedback.ok {
  color: #4a8c5c;
}
#coord-feedback.err {
  color: #c0392b;
}

/* Colour swatches */
.colour-swatches {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 2px 0;
}
.colour-swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2.5px solid transparent;
  cursor: pointer;
  transition:
    border-color 0.2s,
    transform 0.15s,
    box-shadow 0.2s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}
.colour-swatch:hover {
  transform: scale(1.18);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
}
.colour-swatch.selected {
  border-color: var(--text-primary);
  box-shadow:
    0 0 0 2px var(--sidebar-bg),
    0 0 0 4px var(--text-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-body);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background 0.2s,
    transform 0.1s,
    box-shadow 0.2s;
}
.btn:active {
  transform: scale(0.98);
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
  box-shadow: 0 1px 3px rgba(184, 115, 74, 0.25);
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 2px 6px rgba(184, 115, 74, 0.3);
}
.btn-secondary {
  background: var(--card-bg);
  color: var(--text-secondary);
  border: 1px solid var(--card-border);
  width: 100%;
}
.btn-secondary:hover {
  background: var(--card-hover);
  color: var(--text-primary);
}
.form-buttons {
  display: flex;
  gap: 8px;
}
.form-buttons .btn {
  flex: 1;
}
.btn-cancel {
  display: none;
}
.btn-cancel.show {
  display: inline-flex;
}

/* ── Marker list ──────────────────────────────────────────── */
#marker-list {
  list-style: none;
}
#marker-list:empty::after {
  content: "No matching markers.";
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
  padding: 16px 0;
  text-align: center;
  line-height: 1.6;
}
.marker-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  margin-bottom: 6px;
  border-radius: var(--radius-md);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  font-size: 13px;
  transition:
    border-color 0.2s,
    background 0.2s,
    box-shadow 0.2s;
}
.marker-item:hover {
  border-color: #d4cec6;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}
.marker-item .swatch {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.06);
}
.marker-item .info {
  flex: 1;
  min-width: 0;
}
.marker-item .name {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 13px;
  color: var(--text-primary);
}
.marker-item .coords {
  font-size: 10px;
  color: var(--text-muted);
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  letter-spacing: 0.3px;
  margin-top: 1px;
}
.marker-item button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 3px 4px;
  font-size: 14px;
  color: var(--text-muted);
  flex-shrink: 0;
  border-radius: 4px;
  transition:
    color 0.15s,
    background 0.15s;
}
.marker-item button:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.04);
}
.marker-item.editing {
  border-color: var(--accent);
  background: var(--accent-light);
  box-shadow: 0 0 0 1px var(--accent);
}

/* ── Layer toggles ────────────────────────────────────────── */
.layer-toggles {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.layer-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  cursor: pointer;
  transition:
    background 0.15s,
    border-color 0.15s;
  font-size: 13px;
  user-select: none;
}
.layer-toggle:hover {
  background: var(--card-hover);
}
.layer-toggle.off {
  opacity: 0.5;
}
.layer-toggle .layer-swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.layer-toggle .layer-name {
  flex: 1;
  font-weight: 500;
}
.layer-toggle .layer-count {
  font-size: 11px;
  color: var(--text-muted);
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
}

/* Expand chevron */
.layer-expand {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px;
  border-radius: 4px;
  color: var(--text-muted);
  flex-shrink: 0;
  transition:
    color 0.15s,
    background 0.15s,
    transform 0.2s;
}
.layer-expand:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.04);
}
.layer-expand svg {
  width: 14px;
  height: 14px;
}
.layer-group.expanded .layer-expand {
  transform: rotate(180deg);
}

/* Expandable marker list */
.layer-marker-list {
  list-style: none;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.layer-group.expanded .layer-marker-list {
  max-height: 2000px;
}
.layer-marker-list::-webkit-scrollbar {
  width: 4px;
}
.layer-marker-list::-webkit-scrollbar-track {
  background: transparent;
}
.layer-marker-list::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 2px;
}
.layer-marker-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  color: var(--text-secondary);
  transition:
    background 0.15s,
    color 0.15s;
}
.layer-marker-list li:hover {
  background: var(--card-hover);
  color: var(--text-primary);
}
.layer-marker-list li .lml-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}
.layer-marker-list li .lml-detail {
  font-size: 10px;
  color: var(--text-muted);
  flex-shrink: 0;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
}

/* ── Layer settings ──────────────────────────────────────── */
.layer-settings {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--section-rule);
}
.setting-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
}
.setting-toggle input[type="checkbox"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

/* ── Search ──────────────────────────────────────────────── */
.search-section {
  padding: 16px 24px;
  border-bottom: 1px solid var(--section-rule);
}
.search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.search-wrapper input {
  width: 100%;
  padding: 9px 32px 9px 34px;
  font-size: 13px;
  font-family: var(--font-body);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.search-wrapper input::placeholder {
  color: var(--text-muted);
}
.search-wrapper input:focus {
  outline: none;
  border-color: var(--input-focus);
  box-shadow: 0 0 0 3px rgba(184, 115, 74, 0.1);
}
.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  pointer-events: none;
}
.search-clear {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 4px;
  font-size: 16px;
  line-height: 1;
  color: var(--text-muted);
  border-radius: 4px;
  display: none;
  transition:
    color 0.15s,
    background 0.15s;
}
.search-clear:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.04);
}
.search-clear.show {
  display: block;
}

/* Search results */
#search-results {
  list-style: none;
  margin-top: 10px;
  max-height: 240px;
  overflow-y: auto;
  display: none;
}
#search-results.show {
  display: block;
}
#search-results::-webkit-scrollbar {
  width: 4px;
}
#search-results::-webkit-scrollbar-track {
  background: transparent;
}
#search-results::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 2px;
}
.search-result {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  margin-bottom: 4px;
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  font-size: 13px;
  cursor: pointer;
  transition:
    background 0.15s,
    border-color 0.15s;
}
.search-result:hover {
  background: var(--card-hover);
  border-color: #d4cec6;
}
.search-result .result-swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.search-result .result-name {
  flex: 1;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-result .result-type {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}
.search-no-results {
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
  padding: 8px 0;
  text-align: center;
}

/* ── Map ───────────────────────────────────────────────────── */
#map {
  width: 100%;
  height: 100vh;
}

/* ── CSV modal ─────────────────────────────────────────────── */
#csv-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(30, 25, 18, 0.45);
  backdrop-filter: blur(2px);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}
#csv-overlay.open {
  display: flex;
}
#csv-modal {
  background: var(--sidebar-bg);
  border-radius: 12px;
  padding: 28px;
  width: 520px;
  max-width: 90vw;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.25);
  border: 1px solid var(--card-border);
}
#csv-modal h2 {
  font-family: var(--font-display);
  font-size: 18px;
  margin-bottom: 8px;
  font-weight: 700;
  color: var(--text-primary);
}
#csv-modal p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 14px;
  line-height: 1.6;
}
#csv-modal textarea {
  width: 100%;
  height: 180px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 12px;
  padding: 12px;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  resize: vertical;
  background: var(--input-bg);
  color: var(--text-primary);
}
#csv-modal textarea::placeholder {
  color: var(--text-muted);
}
#csv-modal textarea:focus {
  outline: none;
  border-color: var(--input-focus);
  box-shadow: 0 0 0 3px rgba(184, 115, 74, 0.1);
}
#csv-modal .btn-row {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}
#csv-modal .btn-row .btn {
  width: auto;
  flex: 1;
}

/* Import result summary */
#import-result {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.6;
  display: none;
}
#import-result.show {
  display: block;
}
#import-result .summary {
  font-weight: 500;
  margin-bottom: 4px;
}
#import-result .skipped {
  color: #c0392b;
}
#import-result ul {
  margin: 4px 0 0 18px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* ── Mobile toggle button ────────────────────────────────── */
#sidebar-open {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1100;
  width: 42px;
  height: 42px;
  background: var(--sidebar-bg);
  border: 1px solid var(--sidebar-border);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}
#sidebar-open svg {
  width: 20px;
  height: 20px;
}
#sidebar-close {
  display: flex;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  align-items: center;
  justify-content: center;
  transition:
    color 0.15s,
    background 0.15s;
}
#sidebar-close:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.04);
}
#sidebar-close svg {
  width: 18px;
  height: 18px;
}