@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

/* ── Design tokens ───────────────────────────────────── */
:root {
  --font:            'IBM Plex Sans', Arial, sans-serif;
  --mono:            'IBM Plex Mono', monospace;
  --bg:              #ffffff;
  --surface:         #f7f7f7;
  --surface-2:       #eeeeee;
  --border:          #d8d8d8;
  --border-light:    #e8e8e8;
  --text:            #111111;
  --text-muted:      #888888;
  --text-label:      #444444;
  --topbar-bg:       #eeeeee;
  --topbar-height:   52px;
  --sidebar-width:   220px;
  --blue:            #1d4ed8;
  --blue-hover:      #1e40af;
  --blue-bg:         #eff6ff;
  --red:             #b91c1c;
  --red-bg:          #fff5f5;
  --green:           #16a34a;
  --radius:          4px;
  --radius-sm:       3px;
  --tabs-height:     60px;
  --shadow-sm:       0 1px 4px rgba(0,0,0,0.08);
  --shadow-md:       0 4px 16px rgba(0,0,0,0.11);
}

/* ── Reset ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
ul { list-style: none; }

body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Top bar ─────────────────────────────────────────── */

.topbar {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--topbar-height);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 10px;
}

.topbar-logo {
  height: 30px;
  width:  30px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
}

.topbar-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.topbar-type {
  display: block;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* ── Main layout ─────────────────────────────────────── */

.layout {
  display: flex;
  align-items: flex-start;
  min-height: calc(100vh - var(--topbar-height));
}

/* ── Sidebar ─────────────────────────────────────────── */

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: var(--topbar-height);
  max-height: calc(100vh - var(--topbar-height));
  overflow-y: auto;
}

.sb-section {
  border-bottom: 1px solid var(--border);
}

.sb-toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 13px;
  background: none;
  border: none;
  font-family: var(--font);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-label);
  cursor: pointer;
  text-align: left;
  gap: 6px;
}

.sb-toggle:hover { background: var(--surface-2); }

.chevron {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.15s ease;
}

.sb-toggle[aria-expanded="false"] .chevron {
  transform: rotate(-90deg);
}

.sb-list {
  padding: 3px 0 8px;
}

.sb-list li { padding: 0 12px; }

.sb-list li a {
  display: block;
  padding: 4px 2px;
  font-size: 13px;
  color: var(--text);
  border-radius: var(--radius-sm);
  transition: color 0.1s;
}

.sb-list li a:hover { color: var(--blue); text-decoration: none; }

.sb-body {
  padding: 8px 13px 12px;
}

/* Maps section — blue tint */
#sb-maps-section {
  background: #f0f4fd;
}
#sb-maps-section .sb-toggle {
  background: #dce7f9;
  color: #1e3a7a;
  border-bottom: 1px solid #c5d5ef;
}
#sb-maps-section .sb-toggle:hover { background: #cfdaf5; }

/* Help section — green tint */
#sb-help-section {
  background: #f1faf4;
}
#sb-help-section .sb-toggle {
  background: #d8f0e3;
  color: #1a5c37;
  border-bottom: 1px solid #bce0cc;
}
#sb-help-section .sb-toggle:hover { background: #c9ebd8; }

/* ── Publish / versions ──────────────────────────────── */

.version-badge {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px 7px;
  display: inline-block;
  margin-bottom: 9px;
}

.version-actions {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}

.publish-status {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 8px;
  min-height: 14px;
}

.version-list li { padding: 2px 0; }
.version-list li a { font-family: var(--mono); font-size: 11px; color: var(--text-muted); }

.current-version { color: var(--blue) !important; font-weight: 500 !important; }

/* ── Buttons ─────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 11px;
  min-height: 30px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.1s, border-color 0.1s, opacity 0.1s;
  -webkit-user-select: none;
  user-select: none;
}

.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

.btn-primary {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.btn-primary:hover { background: var(--blue-hover); border-color: var(--blue-hover); }

.btn-danger {
  background: var(--red-bg);
  border-color: #fca5a5;
  color: var(--red);
}
.btn-danger:hover { background: #fee2e2; }

/* Size variants */
.btn-sm { font-size: 13px; padding: 4px 9px; min-height: 28px; }
.btn-full { width: 100%; justify-content: center; }

/* Action buttons in layer rows */
.btn-action {
  background: var(--surface);
  border-color: var(--border);
}

/* Trash / clear */
.btn-clear {
  min-width: 28px;
  padding: 4px 5px;
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
}
.btn-clear:hover {
  background: var(--red-bg);
  border-color: #fca5a5;
  color: var(--red);
}

/* Joined button group */
.btn-group { display: flex; }
.btn-group .btn { border-radius: 0; border-right-width: 0; }
.btn-group .btn:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.btn-group .btn:last-child  { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; border-right-width: 1px; }

/* ── Main content area ───────────────────────────────── */

.main {
  flex: 1;
  min-width: 0;
  padding: 20px 24px;
}

.panel-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  /* stretch edge-to-edge across .main and add a tinted band */
  margin: -20px -24px 20px;
  padding: 16px 24px;
  background: #f5f7fc;
  border-bottom: 1px solid var(--border-light);
}

/* ── Layer list ──────────────────────────────────────── */

.layer-list { display: flex; flex-direction: column; }

.layer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border-light);
}

.layer-row:first-child { border-top: 1px solid var(--border-light); }

.layer-name {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.layer-actions {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}

/* ── Data dropdown ───────────────────────────────────── */

.dd-wrap { position: relative; }

.dd-trigger { cursor: pointer; }

.dd-trigger.open {
  background: var(--blue-bg);
  border-color: var(--blue);
  color: var(--blue);
}

.dd-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  min-width: 168px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  z-index: 300;
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.dd-menu.open { display: flex; }

.dd-item {
  display: block;
  width: 100%;
  padding: 9px 14px;
  font-family: var(--font);
  font-size: 13px;
  color: var(--text);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.1s;
  border-bottom: 1px solid var(--border-light);
}
.dd-item:last-child { border-bottom: none; }
.dd-item:hover { background: var(--surface); text-decoration: none; }
.dd-item:disabled { opacity: 0.5; cursor: not-allowed; }

.dd-sep {
  height: 1px;
  background: var(--border);
  margin: 2px 0;
}

.dd-item-danger { color: var(--red); }
.dd-item-danger:hover { background: var(--red-bg); color: var(--red); }

/* ── Use cases / help / log ──────────────────────────── */

.uc-section { margin-bottom: 4px; }

.uc-heading {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin: 18px 0 6px;
}

.uc-list { display: flex; flex-direction: column; gap: 1px; }

.uc-list li a {
  display: block;
  padding: 4px 0;
  font-size: 14px;
  color: var(--text);
  border-bottom: 1px solid var(--border-light);
}

.uc-list li:last-child a { border-bottom: none; }
.uc-list li a:hover { color: var(--blue); text-decoration: none; }

.uc-loading { font-size: 13px; color: var(--text-muted); padding: 12px 0; }

/* ── Webmap iframe ───────────────────────────────────── */

.webmap-iframe {
  display: block;
  width: 100%;
  height: calc(100vh - var(--topbar-height));
  border: none;
}

/* ── Toast notifications ─────────────────────────────── */

.toast-container {
  position: fixed;
  bottom: 20px;
  right: 16px;
  z-index: 9000;
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
  pointer-events: none;
}

.toast {
  font-family: var(--font);
  font-size: 13px;
  font-weight: 500;
  padding: 9px 14px;
  border-radius: var(--radius);
  color: #fff;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateX(12px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  max-width: 300px;
  word-break: break-word;
}

.toast-in { opacity: 1; transform: translateX(0); }
.toast-ok    { background: var(--green); }
.toast-error { background: var(--red); }

/* ── Mobile: bottom tabs ─────────────────────────────── */

.bottom-tabs { display: none; }
.mobile-panel { display: none; }

@media (max-width: 640px) {

  body { padding-bottom: var(--tabs-height); }

  .sidebar { display: none; }
  .layout { display: block; }
  .main { padding: 14px 16px; }

  /* Layer rows wrap on mobile so name takes full width */
  .layer-row {
    flex-wrap: wrap;
    gap: 8px 6px;
    padding: 11px 0;
  }

  .layer-name {
    flex-basis: 100%;
    font-size: 15px;
  }

  /* Bigger tap targets on mobile */
  .btn-sm { min-height: 36px; padding: 6px 12px; font-size: 13px; }
  .btn-clear { min-height: 36px; min-width: 36px; }
  .btn-full { min-height: 44px; }
  .dd-item { padding: 11px 14px; }

  /* Bottom tab bar */
  .bottom-tabs {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--tabs-height);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: var(--bg);
    border-top: 1px solid var(--border);
    z-index: 600;
  }

  .tab-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    background: none;
    border: none;
    font-family: var(--font);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--text-muted);
    cursor: pointer;
    padding-bottom: 4px;
    transition: color 0.12s;
  }

  .tab-btn.active { color: var(--blue); }

  /* Mobile panels */
  .mobile-panel {
    padding: 14px 16px;
    padding-bottom: 20px;
  }

  .mp-heading {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 8px;
    margin-top: 18px;
  }

  .mp-heading:first-child { margin-top: 0; }

  .mp-list li a {
    display: block;
    font-size: 15px;
    padding: 10px 0;
    color: var(--text);
    border-bottom: 1px solid var(--border-light);
  }

  .mp-list li:last-child a { border-bottom: none; }
  .mp-list li a:hover { color: var(--blue); text-decoration: none; }

  .mobile-publish { padding: 4px 0; }

  .mobile-version-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 12px 0 16px;
  }

  /* Toast clears bottom tabs */
  .toast-container { bottom: calc(var(--tabs-height) + 12px); }
}

/* ── Add Layer modal ─────────────────────────────────── */
[hidden] { display: none !important; }

.panel-add {
  min-width: 30px;
  justify-content: center;
  font-size: 18px;
  font-weight: 500;
  line-height: 1;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(0, 0, 0, 0.45);
}

.modal {
  width: min(460px, 100%);
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  padding: 20px;
  background: var(--bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  font-size: 13px;
}

.modal-title { font-size: 16px; font-weight: 600; margin-bottom: 8px; }

.field-label {
  display: block;
  margin: 12px 0 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-label);
}

.field-input {
  width: 100%;
  padding: 6px 8px;
  font-family: var(--font);
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
}

.field-hint { margin-top: 3px; font-size: 11px; color: var(--text-muted); }
.field-check { display: flex; align-items: center; gap: 6px; margin-top: 2px; }

.field-row { display: flex; gap: 12px; }
.field-col { flex: 1; min-width: 0; }

.seg { display: flex; gap: 16px; margin-bottom: 6px; }
.seg label { display: flex; align-items: center; gap: 5px; cursor: pointer; }

.rgb-box { display: flex; align-items: center; gap: 12px; }
.rgb-swatch {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.rgb-sliders { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.rgb-sliders label { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 11px; }
.rgb-sliders input { flex: 1; }
.rgb-hex { font-family: var(--mono); font-size: 12px; color: var(--text-label); }

.palette-picker { position: relative; }
.palette-current, .palette-option {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  text-align: left;
}
.palette-list {
  position: absolute;
  z-index: 1;
  left: 0;
  right: 0;
  top: calc(100% + 2px);
  max-height: 240px;
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}
.palette-option { padding: 6px 8px; }
.palette-option:hover { background: var(--surface-2); }
.palette-option.is-selected { background: var(--blue-bg); }
.palette-bar {
  flex: none;
  width: 96px;
  height: 10px;
  border-radius: 2px;
  border: 1px solid rgba(0, 0, 0, 0.08);
}
.palette-name { font-family: var(--mono); font-size: 12px; }

.modal-status { min-height: 1.2em; margin-top: 12px; color: var(--text-label); }
.modal-status.is-error { color: var(--red); }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 12px; }

/* ── In-app help: "?" links to the matching help page (new tab) ─────────── */
.help-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 17px;
  height: 17px;
  border: 1px solid var(--border);
  border-radius: 50%;
  font-family: var(--font);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  color: var(--blue);
  background: var(--bg);
  text-decoration: none;
}
.help-icon:hover { background: var(--surface-2); text-decoration: none; }

/* Sidebar sections: the "?" sits on the header row, left of the chevron */
.sb-section { position: relative; }
.sb-section > .sb-help {
  position: absolute;
  top: 8px;
  right: 32px;
}

/* Layers panel label: "?" beside the "+" */
.panel-tools { display: inline-flex; align-items: center; gap: 8px; }

/* Modals: title and "?" on one row */
.modal-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.modal-head .modal-title { margin-right: auto; }

.dd-item-help { color: var(--blue); border-top: 1px solid var(--border); }