/* ============================================================
   MEX VMS Explorer — Light theme
   ============================================================ */

:root {
  --bg-dark:    #f5f6f8;
  --bg-panel:   #ffffff;
  --bg-panel2:  #eef0f4;
  --border:     #d0d5dd;
  --accent:     #34d399;
  --accent-dim: #1a8a62;
  --text:       #1a1d23;
  --text-dim:   #5f6b7a;
  --topbar-h:   44px;
  --sidebar-w:  280px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg-dark);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 13px;
  overflow: hidden;
}

/* --- Top bar --------------------------------------------------------------- */
#topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  z-index: 200;
  gap: 16px;
}

.brand {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--accent);
}

.topbar-stats {
  font-size: 12px;
  color: var(--text-dim);
  display: flex;
  gap: 6px;
  align-items: center;
}

#lang-toggle {
  margin-left: auto;
  padding: 3px 10px;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: background 0.15s, border-color 0.15s;
}

#lang-toggle:hover { background: var(--accent-dim); border-color: var(--accent); }

.sep { opacity: 0.4; }

/* --- Sidebar toggle (mobile) ----------------------------------------------- */
#sidebar-toggle {
  display: none;
  position: fixed;
  top: calc(var(--topbar-h) + 8px);
  left: 8px;
  z-index: 201;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  cursor: pointer;
  border-radius: 4px;
  font-size: 16px;
}

/* --- Sidebar --------------------------------------------------------------- */
#sidebar {
  position: fixed;
  top: var(--topbar-h);
  left: 0;
  width: var(--sidebar-w);
  height: calc(100vh - var(--topbar-h));
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0;
  transition: transform 0.25s ease;
}

#sidebar::-webkit-scrollbar { width: 4px; }
#sidebar::-webkit-scrollbar-track { background: transparent; }
#sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

#sidebar.collapsed { transform: translateX(-100%); }

/* --- Sidebar title --------------------------------------------------------- */
.sidebar-title {
  margin: 14px;
  padding: 16px 14px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  color: var(--accent-dim);
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

/* --- Panels ---------------------------------------------------------------- */
.panel {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

.panel h3 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 10px;
}

/* --- Vessel search --------------------------------------------------------- */
.search-wrapper {
  position: relative;
}

#vessel-search {
  width: 100%;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 12px;
  outline: none;
  transition: border-color 0.15s;
}

#vessel-search:focus { border-color: var(--accent); }

#vessel-search::placeholder { color: var(--text-dim); opacity: 0.6; }

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 4px 4px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 10;
  display: none;
}

.search-results.open { display: block; }

.search-result-item {
  padding: 6px 8px;
  font-size: 12px;
  cursor: pointer;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
}

.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: var(--accent-dim); color: var(--text); }

.search-result-item .result-name { color: var(--text); }
.search-result-item .result-rnpa { font-size: 10px; color: var(--text-dim); margin-left: 6px; }

/* --- Playback controls ----------------------------------------------------- */
.playback-row {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}

.icon-btn {
  flex: 1;
  padding: 6px;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  border-radius: 4px;
  font-size: 12px;
  transition: background 0.15s, border-color 0.15s;
}

.icon-btn:hover { background: var(--accent-dim); border-color: var(--accent); }
.icon-btn.playing { background: var(--accent); color: #000; border-color: var(--accent); }

#date-slider {
  width: 100%;
  accent-color: var(--accent);
  margin-bottom: 8px;
}

.speed-row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
}

.speed-row select {
  flex: 1;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 12px;
}

/* --- Filter groups --------------------------------------------------------- */
.filter-group {
  margin-bottom: 12px;
}

.filter-group:last-child { margin-bottom: 0; }

.filter-label {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

/* --- Chips ----------------------------------------------------------------- */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.chip {
  padding: 3px 8px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-panel2);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 11px;
  transition: all 0.15s;
}

.chip.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--text);
}

.chip:hover { border-color: var(--accent); }

/* --- Reset button ---------------------------------------------------------- */
.reset-btn {
  width: 100%;
  padding: 6px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  border-radius: 4px;
  font-size: 12px;
  margin-top: 10px;
  transition: all 0.15s;
}

.reset-btn:hover { border-color: var(--accent); color: var(--text); }

/* --- Color by selector ----------------------------------------------------- */
#color-by {
  width: 100%;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 8px;
  border-radius: 4px;
  font-size: 12px;
}

/* --- Ports toggle ---------------------------------------------------------- */
.toggle-row {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-dim);
}

.toggle-row input[type="checkbox"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
}

/* --- Sidebar footer -------------------------------------------------------- */
.data-caveat p {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.5;
  margin: 0;
}

.data-caveat a {
  color: var(--accent-dim);
  text-decoration: underline;
}

.data-caveat code {
  font-size: 10px;
  background: var(--bg-panel2);
  padding: 1px 4px;
  border-radius: 3px;
}

.sidebar-footer {
  padding: 10px 14px;
  font-size: 11px;
  color: var(--text-dim);
  margin-top: auto;
  border-top: 1px solid var(--border);
}

/* --- Map ------------------------------------------------------------------- */
#map {
  position: fixed;
  top: var(--topbar-h);
  left: var(--sidebar-w);
  right: 0;
  bottom: 0;
  z-index: 0;
}

/* Override MapLibre attribution position */
.maplibregl-ctrl-bottom-right { right: 4px; bottom: 4px; }
.maplibregl-ctrl-attrib { font-size: 10px !important; opacity: 0.6; }

/* Feature name popups */
.feature-popup .maplibregl-popup-content {
  padding: 6px 10px;
  font-size: 12px;
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.feature-popup .maplibregl-popup-tip { border-top-color: var(--bg-panel); border-bottom-color: var(--bg-panel); }
.feature-popup-label { font-weight: 500; }
.feature-popup-label .popup-id { font-weight: 400; color: var(--text-dim); font-family: monospace; font-size: 11px; }

/* --- Vessel detail panel --------------------------------------------------- */
#vessel-detail {
  position: fixed;
  top: var(--topbar-h);
  right: 0;
  width: 300px;
  height: calc(100vh - var(--topbar-h));
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  z-index: 150;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease;
}

#vessel-detail.hidden { transform: translateX(100%); }

#vessel-detail-close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
  padding: 2px 6px;
}

#vessel-detail-close:hover { color: var(--text); }

.vd-header {
  padding: 14px 14px 10px;
  border-bottom: 1px solid var(--border);
  padding-right: 36px;
}

.vd-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.vd-subtitle {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 3px;
  font-family: monospace;
}

.vd-meta {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.vd-row {
  display: flex;
  gap: 6px;
  font-size: 12px;
}

.vd-key {
  color: var(--text-dim);
  min-width: 80px;
  flex-shrink: 0;
}

.vd-val { color: var(--text); }

.vd-chart-title {
  padding: 10px 14px 4px;
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

#vd-chart {
  padding: 0 8px 14px;
  height: 180px;
}

#vd-download {
  padding: 0 14px 14px;
}

.download-btn {
  width: 100%;
  padding: 7px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: var(--text);
  cursor: pointer;
  border-radius: 4px;
  font-size: 12px;
  transition: background 0.15s;
}

.download-btn:hover { background: var(--accent); color: #000; }

.vd-data-note {
  padding: 10px 14px;
  font-size: 11px;
  line-height: 1.5;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

.vd-data-note a {
  color: var(--accent);
  text-decoration: none;
}

.vd-data-note a:hover { text-decoration: underline; }

.vd-data-note code {
  background: var(--bg-panel2);
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 10px;
}

/* --- Loading overlay ------------------------------------------------------- */
#loading {
  position: fixed;
  inset: 0;
  background: rgba(245, 246, 248, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 500;
  gap: 14px;
}

#loading.hidden { display: none; }

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

#loading-text {
  font-size: 13px;
  color: var(--text-dim);
}

/* --- Responsive: hide sidebar on small screens ----------------------------- */
@media (max-width: 768px) {
  #sidebar-toggle { display: block; }

  #sidebar { transform: translateX(-100%); }
  #sidebar.open { transform: translateX(0); }

  #map { left: 0; }

  #vessel-detail { width: 100%; border-left: none; border-top: 1px solid var(--border); }
}