/* ═══════════════════════════════════════════════════
   PoliTo EnviroHub — Design System
   Aesthetic: Dark scientific instrument / field terminal
   ═══════════════════════════════════════════════════ */

:root {
  --bg-base:       #0d1117;
  --bg-panel:      #111820;
  --bg-card:       #16202b;
  --bg-hover:      #1c2d3d;
  --bg-input:      #0d1824;

  --border:        #1e3247;
  --border-light:  #254059;

  --accent:        #00d4a8;
  --accent-dim:    rgba(0, 212, 168, 0.15);
  --accent-glow:   rgba(0, 212, 168, 0.35);

  --yellow:        #f5c542;
  --blue:          #3b9eff;
  --teal:          #06b6d4;
  --green:         #22c55e;
  --red:           #ef4444;
  --purple:        #a78bfa;

  --text-primary:  #e2eaf2;
  --text-secondary:#7a9ab5;
  --text-muted:    #3d5a73;

  --font-display:  'Syne', sans-serif;
  --font-body:     'DM Sans', sans-serif;
  --font-mono:     'DM Mono', monospace;

  --topbar-h:      52px;
  --panel-left-w:  220px;
  --panel-right-w: 380px;
  --panel-mobile-w: min(86vw, 360px);
  --radius:        6px;
  --radius-lg:     10px;
}

/* ── Reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }
body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.5;
}

/* ── Top Bar ───────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  gap: 16px;
  position: relative;
  z-index: 1000;
}
.topbar::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-glow), transparent);
}
.topbar-brand { display: flex; align-items: center; gap: 10px; }
.topbar-icon {
  font-size: 22px;
  color: var(--accent);
  animation: pulse-icon 3s ease-in-out infinite;
}
@keyframes pulse-icon {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.topbar-polito-logo {
  height: 28px;
  width: auto;
  opacity: 0.92;
  flex-shrink: 0;
}
.topbar-divider {
  width: 1px;
  height: 28px;
  background: var(--border-light);
  margin: 0 4px;
  flex-shrink: 0;
}
.topbar-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.topbar-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-left: 1px solid var(--border);
  padding-left: 10px;
}
.topbar-actions { display: flex; align-items: center; gap: 8px; }
/* ⚙ settings dropdown (Projects / Users) */
.topbar-menu { position: relative; display: inline-flex; }
.topbar-menu-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 170px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.45);
  padding: 6px;
  z-index: 1100;
  display: none;
}
.topbar-menu-item {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 8px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  font-family: var(--font-body);
}
.topbar-menu-item:hover { background: var(--bg-hover); color: var(--text-primary); }
/* Password show/hide toggle */
.pw-wrap { position: relative; display: block; }
.pw-wrap input { width: 100%; padding-right: 40px; }
.pw-toggle {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1;
  padding: 4px 7px;
}
.pw-toggle:hover { color: var(--text-primary); }
.language-select {
  height: 30px;
  min-width: 54px;
  flex: 0 0 auto;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  background: var(--bg-input);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 0 6px;
  cursor: pointer;
}
.language-select:focus {
  outline: none;
  border-color: var(--accent);
  color: var(--text-primary);
}

/* ── Status dot ────────────────────────────────────── */
.status-dot {
  width: 8px; height: 8px;
  flex: 0 0 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background 0.3s;
}
.status-dot.online  { background: var(--green); box-shadow: 0 0 6px var(--green); }
.status-dot.offline { background: var(--red); }

/* ── App Layout ────────────────────────────────────── */
.app-layout {
  display: grid;
  grid-template-columns: var(--panel-left-w) 1fr var(--panel-right-w);
  height: calc(100vh - var(--topbar-h));
  transition: grid-template-columns 0.22s ease;
}
.app-layout.left-collapsed {
  grid-template-columns: 0 1fr var(--panel-right-w);
}
.app-layout.right-collapsed {
  grid-template-columns: var(--panel-left-w) 1fr 0;
}
.app-layout.left-collapsed.right-collapsed {
  grid-template-columns: 0 1fr 0;
}

/* ── Left Panel ────────────────────────────────────── */
.panel-left {
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
  transition: opacity 0.18s ease, visibility 0.18s ease;
}
.app-layout.left-collapsed .panel-left {
  border-right: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  visibility: hidden;
}
.panel-left::-webkit-scrollbar { width: 3px; }
.panel-left::-webkit-scrollbar-thumb { background: var(--border-light); }

.panel-section {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.panel-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* ── Basemap Radio ─────────────────────────────────── */
.basemap-options { display: flex; flex-direction: column; gap: 4px; }
.radio-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-secondary);
  border: 1px solid transparent;
  transition: all 0.15s;
  font-size: 12px;
}
.radio-option:hover { background: var(--bg-hover); color: var(--text-primary); }
.radio-option.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}
.radio-option input { display: none; }

/* ── Type Filters ──────────────────────────────────── */
.type-filters { display: flex; flex-direction: column; gap: 5px; }
.type-filter-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  user-select: none;
  border: 1px solid transparent;
  transition: all 0.15s;
}
.type-filter-item:hover { background: var(--bg-hover); }
.type-filter-item.active { border-color: var(--border-light); }
.type-filter-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.type-filter-label { font-size: 12px; color: var(--text-secondary); flex: 1; }
.type-filter-item.active .type-filter-label { color: var(--text-primary); }
.type-filter-count {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
}

/* ── Tool Buttons ──────────────────────────────────── */
.btn-tool {
  width: 100%;
  text-align: left;
  padding: 7px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-tool:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
  color: var(--text-primary);
}

/* ── Panel Footer Stats ────────────────────────────── */
.panel-footer {
  margin-top: auto;
  padding: 14px 16px;
  border-top: 1px solid var(--border);
}
.stat-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
  padding: 3px 0;
}
.stat-val {
  font-family: var(--font-mono);
  color: var(--accent);
}

/* ── GeoServer Info ────────────────────────────────── */
.geoserver-info { color: var(--text-muted); font-size: 11px; line-height: 1.6; }
.geoserver-info code {
  font-family: var(--font-mono);
  font-size: 10px;
  background: var(--bg-input);
  padding: 1px 4px;
  border-radius: 3px;
  color: var(--accent);
}

/* ── Map ───────────────────────────────────────────── */
.map-container {
  position: relative;
  min-width: 0;
}
#map { width: 100%; height: 100%; background: var(--bg-base); }
.panel-toggle {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 950;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  background: rgba(17, 24, 32, 0.94);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0,0,0,0.35);
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.15s;
}
.panel-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--accent);
}
.panel-toggle-left { left: 12px; }
.panel-toggle-right { right: 12px; }
.panel-toggle:active { transform: translateY(-50%) scale(0.96); }

/* Override Leaflet for dark theme */
.leaflet-tile-pane { filter: brightness(0.9) saturate(0.8); }
.leaflet-control-zoom {
  border: 1px solid var(--border) !important;
  background: var(--bg-panel) !important;
}
.leaflet-control-zoom a {
  background: var(--bg-panel) !important;
  color: var(--text-secondary) !important;
  border-bottom: 1px solid var(--border) !important;
}
.leaflet-control-zoom a:hover {
  background: var(--bg-hover) !important;
  color: var(--accent) !important;
}
.leaflet-popup-content-wrapper {
  background: var(--bg-card) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5) !important;
}
.leaflet-popup-tip { background: var(--bg-card) !important; }

/* Custom marker */
.env-marker {
  width: 32px; height: 32px;
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  border: 2px solid rgba(255,255,255,0.2);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}
.env-marker:hover {
  transform: rotate(-45deg) scale(1.15);
  box-shadow: 0 0 16px currentColor;
}
.env-marker.selected {
  border-color: white;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.3);
}
.env-marker-inner {
  width: 100%; height: 100%;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(45deg);
  font-size: 12px;
}

/* ── Right Panel ───────────────────────────────────── */
.panel-right {
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  min-width: 0;
  transition: opacity 0.18s ease, visibility 0.18s ease;
}
.app-layout.right-collapsed .panel-right {
  border-left: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  visibility: hidden;
}
.panel-right::-webkit-scrollbar { width: 3px; }
.panel-right::-webkit-scrollbar-thumb { background: var(--border-light); }

.panel-right-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  gap: 16px;
  padding: 40px;
  text-align: center;
}
.empty-icon {
  font-size: 48px;
  opacity: 0.2;
  animation: rotate-slow 12s linear infinite;
}
@keyframes rotate-slow { to { transform: rotate(360deg); } }

/* ── Detail Panel ──────────────────────────────────── */
#panel-detail { flex: 1; display: flex; flex-direction: column; }

.detail-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.detail-type-badge {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 20px;
  margin-bottom: 8px;
  display: inline-block;
}
.detail-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}
.detail-desc {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}
.detail-close {
  position: absolute;
  top: 16px; right: 16px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 26px; height: 26px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}
.detail-close:hover { border-color: var(--text-secondary); color: var(--text-primary); }

/* Latest values grid */
.latest-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}
.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
}
.value-card-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.value-card-value {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
}
.value-card-unit {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
}
.value-card-time {
  font-size: 9px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Chart section */
.chart-section {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}
.chart-controls {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.chart-section-title {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.chart-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  height: 140px;
  position: relative;
}
.chip {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 20px;
  border: 1px solid var(--border);
  cursor: pointer;
  color: var(--text-muted);
  background: transparent;
  transition: all 0.15s;
}
.chip:hover { border-color: var(--border-light); color: var(--text-secondary); }
.chip.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}
.chip-label { font-size: 9px; color: var(--text-muted); align-self: center; margin-left: 2px; }

/* Tools section */
.tools-section {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}
.tools-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  cursor: pointer;
  transition: all 0.15s;
  text-align: left;
}
.tool-card:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
}
.tool-card-icon { font-size: 14px; margin-bottom: 4px; }
.tool-card-label {
  font-size: 11px;
  color: var(--text-primary);
  font-weight: 500;
}
.tool-card-desc {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Tool result */
.tool-result {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: none;
}
.tool-result.visible { display: block; }
.tool-result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.tool-result-title {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Upload section in detail */
.upload-section {
  padding: 14px 20px;
}

/* ── Buttons ───────────────────────────────────────── */
.btn {
  padding: 7px 14px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  white-space: nowrap;
}
/* Top-bar action buttons keep a consistent height and never shrink/wrap. */
.topbar-actions .btn { flex: 0 0 auto; }
/* The active project name is the important context — keep it readable and let it
   take the space freed by hiding the decorative subtitle. */
#project-title {
  display: inline-block;
  flex-shrink: 0;
  max-width: 340px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
/* Decorative tagline removed from the bar to reduce clutter; the title + project
   name carry the branding. */
.topbar-sub { display: none; }
.btn-primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}
.btn-primary:hover { background: #00f0c0; }
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-light);
}
.btn-sm { padding: 4px 10px; font-size: 11px; }
.btn-danger { background: transparent; color: var(--red); border-color: var(--red); }
.btn-danger:hover { background: rgba(239,68,68,0.1); }

/* ── Modals ────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 3100;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fade-in 0.15s ease;
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  width: 440px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6);
  animation: slide-up 0.2s ease;
}
@keyframes slide-up { from { transform: translateY(16px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
}
.modal-close {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 26px; height: 26px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}
.modal-close:hover { color: var(--text-primary); border-color: var(--text-muted); }
.modal-body { padding: 20px 24px; display: flex; flex-direction: column; gap: 14px; }
.modal-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

/* ── Forms ─────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-group label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  padding: 8px 10px;
  font-family: var(--font-body);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group select option { background: var(--bg-card); }
.form-hint { font-size: 11px; color: var(--text-muted); }
.admin-email-input {
  flex: 1;
  min-width: 0;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  padding: 7px 9px;
  font-family: var(--font-body);
  font-size: 12px;
  outline: none;
}
.admin-email-input:focus { border-color: var(--accent); }

/* ── File Drop Zone ────────────────────────────────── */
.file-drop-zone {
  border: 2px dashed var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.file-drop-zone:hover, .file-drop-zone.dragging {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--text-primary);
}
.file-drop-icon { font-size: 28px; color: var(--accent); }
.file-drop-hint { font-size: 11px; color: var(--text-muted); }
.link { color: var(--accent); cursor: pointer; }
.file-selected-info {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
}

/* ── Upload Result ─────────────────────────────────── */
#upload-result {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
}
#upload-result.success { border-color: var(--green); color: var(--green); }
#upload-result.error { border-color: var(--red); color: var(--red); }

/* ── Loading spinner ───────────────────────────────── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Map Legend ────────────────────────────────────── */
.map-overlay-legend {
  position: absolute;
  bottom: 24px;
  right: 16px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  z-index: 500;
  min-width: 140px;
}
.legend-title {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.legend-bar {
  height: 8px;
  border-radius: 4px;
  margin-bottom: 4px;
  background: linear-gradient(90deg, #313695, #4575b4, #74add1, #abd9e9, #e0f3f8, #ffffbf, #fee090, #fdae61, #f46d43, #d73027, #a50026);
}
.legend-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
}

.wms-legend-overlay {
  position: absolute;
  right: 16px;
  top: 16px;
  z-index: 700;
  width: min(280px, calc(100% - 32px));
  max-height: calc(100% - 48px);
  overflow: auto;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
}
.wms-legend-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
}
.wms-legend-title {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.wms-legend-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px;
}
.wms-legend-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
}
.wms-legend-name {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.wms-legend-item img {
  max-width: 100%;
  height: auto;
  display: block;
  background: #fff;
  border-radius: 3px;
}
.wms-legend-error {
  display: none;
  font-size: 10px;
  color: var(--text-muted);
}

/* ── Scrollbar ─────────────────────────────────────── */
.panel-right::-webkit-scrollbar { width: 4px; }
.panel-right::-webkit-scrollbar-track { background: transparent; }
.panel-right::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ── Notification toast ────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 10px 18px;
  font-size: 12px;
  color: var(--text-primary);
  z-index: 9999;
  animation: toast-in 0.2s ease;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
@keyframes toast-in { from { opacity: 0; transform: translateX(-50%) translateY(8px); } }
.toast.success { border-color: var(--green); color: var(--green); }
.toast.error { border-color: var(--red); color: var(--red); }

/* ── Upload Mode Tabs ──────────────────────────────── */
.upload-mode-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-input);
  border-radius: var(--radius);
  padding: 3px;
  margin-bottom: 4px;
}
.upload-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}
.upload-tab:hover { color: var(--text-primary); }
.upload-tab.active {
  background: var(--bg-card);
  color: var(--accent);
  box-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* ── CSV Preview Table ─────────────────────────────── */
.csv-preview-wrap {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  max-height: 220px;
}
.csv-preview {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 11px;
  border-collapse: collapse;
}
.csv-preview td {
  padding: 5px 8px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  white-space: nowrap;
  color: var(--text-secondary);
}
.csv-preview tr.csv-row-meta td { color: var(--text-muted); font-style: italic; }
.csv-preview tr.csv-row-skipped td { background: rgba(255,255,255,0.02); color: var(--text-muted); opacity: 0.5; }
.csv-preview .csv-row-num {
  background: var(--bg-card);
  color: var(--text-muted);
  text-align: right;
  font-size: 9px;
  width: 28px;
}
.csv-preview .col-header {
  background: var(--bg-card);
  position: sticky;
  top: 0;
  font-weight: 500;
  color: var(--accent);
  font-size: 10px;
  letter-spacing: 0.05em;
}
.csv-preview .col-header.col-ts   { color: var(--blue); }
.csv-preview .col-header.col-mapped { color: var(--green); }

/* ── Column Mapping List ───────────────────────────── */
#column-mapping {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.col-map-row {
  display: grid;
  grid-template-columns: 28px 1fr auto 1fr;
  gap: 8px;
  align-items: center;
  padding: 4px 6px;
  background: var(--bg-input);
  border-radius: 4px;
}
.col-map-index {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  text-align: center;
}
.col-map-sample {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.col-map-arrow { color: var(--text-muted); font-size: 14px; }
.col-map-select {
  background: var(--bg-base);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 5px 8px;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 11px;
  outline: none;
}
.col-map-select.ts-col { border-color: var(--blue); color: var(--blue); }
.col-map-select.mapped { border-color: var(--accent); color: var(--accent); }

/* ── Upload progress ───────────────────────────────── */
#upload-progress {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin: 8px 0;
}
.progress-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
}
.progress-label span { color: var(--accent); }
.progress-bar {
  height: 4px;
  background: var(--bg-input);
  border-radius: 2px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #00f0c0);
  width: 0%;
  transition: width 0.3s ease;
  animation: progress-pulse 1.5s ease-in-out infinite;
}
@keyframes progress-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.6; }
}

/* ── Leaflet.draw dark theme tweaks ─────────────────── */
.leaflet-draw-toolbar a {
  background-color: var(--bg-panel) !important;
  border-color: var(--border) !important;
}
.leaflet-draw-toolbar a:hover {
  background-color: var(--bg-hover) !important;
}
.leaflet-draw-actions a {
  background-color: var(--bg-card) !important;
  color: var(--text-primary) !important;
  border-color: var(--border) !important;
}
.leaflet-draw-tooltip {
  background: var(--bg-panel) !important;
  border: 1px solid var(--border-light) !important;
  color: var(--text-primary) !important;
  font-family: var(--font-body) !important;
}

/* ── Layer rows (raster + vector lists) ──────────────── */
.layer-row {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 6px;
  border-radius: 4px;
  margin-bottom: 2px;
  font-size: 11px;
}
.layer-row:hover { background: var(--bg-card); }
.layer-row-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  flex: 1;
  min-width: 0;
}
.layer-row-toggle input[type="checkbox"] { accent-color: var(--accent); flex-shrink: 0; }
.layer-row-icon { color: var(--text-muted); flex-shrink: 0; }
.layer-row-name {
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.layer-row-actions {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}
.layer-icon-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  width: 22px;
  height: 22px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.layer-icon-btn:hover {
  background: var(--bg-input);
  color: var(--text-primary);
  border-color: var(--border);
}
.layer-icon-btn.active {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0, 212, 168, 0.08);
}
.layer-icon-danger:hover {
  color: #f87171;
  border-color: #f87171;
}

/* ── File-list-with-remove (upload modal) ──────────── */
.file-clear-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 10px;
  cursor: pointer;
  margin-top: 6px;
}
.file-clear-btn:hover {
  color: #f87171;
  border-color: #f87171;
}

/* ── Tool help icon ──────────────────────────────── */
.tool-card { position: relative; }
.tool-help {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-input);
  color: var(--text-muted);
  border: 1px solid var(--border);
  font-size: 11px;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: help;
  padding: 0;
  transition: all 0.15s;
  z-index: 2;
}
.tool-help:hover {
  background: var(--accent);
  color: var(--bg-base);
  border-color: var(--accent);
  transform: scale(1.15);
}
.help-block { margin-bottom: 14px; }
.help-block .help-label {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 4px;
  font-family: var(--font-mono);
}
.help-block p { margin: 0 0 0 0; color: var(--text-secondary); }
.help-block ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text-secondary);
}
.help-block li { margin-bottom: 4px; }

/* ── Measure controls ────────────────────────────── */
.measure-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 6px;
}
.measure-btn {
  background: var(--bg-panel);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
  transition: all 0.15s;
  width: 100%;
}
.measure-btn:hover  { background: var(--bg-hover); color: var(--text-primary); }
.measure-btn.active { background: var(--accent-dim); color: var(--accent); border-color: var(--accent); }
.measure-result {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 900;
  background: var(--bg-panel);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-primary);
  white-space: nowrap;
}
.measure-result-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  padding: 0;
  line-height: 1;
}
.measure-result-close:hover { color: var(--text-primary); }

/* ── Pixel value popup ────────────────────────────── */
.pixel-popup .leaflet-popup-content-wrapper {
  background: var(--bg-panel);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}
.pixel-popup .leaflet-popup-tip { background: var(--bg-panel); }

.wms-info-popup .leaflet-popup-content-wrapper {
  background: var(--bg-panel);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}
.wms-info-popup .leaflet-popup-tip { background: var(--bg-panel); }
.wms-info {
  min-width: 180px;
  max-width: 340px;
  font-size: 11px;
}
.wms-info-title {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  margin-bottom: 8px;
}
.wms-info-feature {
  color: var(--text-muted);
  font-size: 9px;
  margin: 7px 0 3px;
  text-transform: uppercase;
}
.wms-info-attributes {
  max-height: 245px;
  overflow-y: auto;
  padding-right: 3px;
}
.wms-info-row {
  display: grid;
  grid-template-columns: minmax(70px, 1fr) minmax(80px, 1.4fr);
  gap: 8px;
  padding: 3px 0;
  border-bottom: 1px solid var(--border);
}
.wms-info-row span {
  color: var(--text-muted);
  overflow-wrap: anywhere;
}
.wms-info-row strong {
  color: var(--text-primary);
  font-weight: 500;
  overflow-wrap: anywhere;
}
.wms-info-text,
.wms-info-empty {
  color: var(--text-secondary);
  line-height: 1.45;
  overflow-wrap: anywhere;
}
.wms-info-coords {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  margin-top: 8px;
}

@media (max-width: 900px) {
  html, body { height: 100dvh; }

  .topbar {
    padding: 0 10px;
    gap: 8px;
  }
  .topbar-brand {
    min-width: 0;
    gap: 7px;
  }
  .topbar-polito-logo { height: 24px; }
  .topbar-title { font-size: 16px; }
  .topbar-sub { display: none; }
  .topbar-actions {
    gap: 5px;
    max-width: min(62vw, 420px);
    overflow-x: auto;
    scrollbar-width: none;
  }
  .topbar-actions::-webkit-scrollbar { display: none; }
  .topbar-actions .btn {
    padding: 6px 9px;
    white-space: nowrap;
  }
  .language-select {
    height: 28px;
    min-width: 48px;
    padding: 0 4px;
  }

  .app-layout {
    display: block;
    position: relative;
    height: calc(100dvh - var(--topbar-h));
    overflow: hidden;
  }
  .map-container {
    position: absolute;
    inset: 0;
    height: 100%;
  }
  .panel-left,
  .panel-right {
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 820;
    width: var(--panel-mobile-w);
    max-width: calc(100vw - 52px);
    opacity: 1;
    visibility: visible;
    box-shadow: 0 10px 36px rgba(0,0,0,0.48);
    transition: transform 0.22s ease;
  }
  .panel-left {
    left: 0;
    transform: translateX(0);
  }
  .panel-right {
    right: 0;
    transform: translateX(0);
  }
  .app-layout.left-collapsed .panel-left {
    border-right: 1px solid var(--border);
    opacity: 1;
    transform: translateX(calc(-100% - 1px));
    visibility: visible;
  }
  .app-layout.right-collapsed .panel-right {
    border-left: 1px solid var(--border);
    opacity: 1;
    transform: translateX(calc(100% + 1px));
    visibility: visible;
  }

  .panel-toggle {
    width: 38px;
    height: 38px;
    font-size: 17px;
  }
  .app-layout:not(.left-collapsed) .panel-toggle-left {
    left: calc(var(--panel-mobile-w) + 8px);
  }
  .app-layout:not(.right-collapsed) .panel-toggle-right {
    right: calc(var(--panel-mobile-w) + 8px);
  }

  .wms-legend-overlay {
    top: 54px;
    right: 10px;
    width: min(280px, calc(100% - 20px));
  }

  .measure-controls { grid-template-columns: 1fr; }

  .modal-overlay {
    align-items: flex-start;
    padding: 10px;
    overflow-y: auto;
  }
  .modal {
    width: min(440px, calc(100vw - 20px));
    max-width: calc(100vw - 20px);
    max-height: calc(100dvh - 20px);
  }
  .modal-header { padding: 16px 18px 12px; }
  .modal-body { padding: 16px 18px; }
  .modal-footer {
    padding: 12px 18px;
    justify-content: stretch;
  }
  .modal-footer .btn {
    flex: 1 1 130px;
  }
}

@media (max-width: 520px) {
  .topbar-polito-logo,
  .topbar-divider,
  .topbar-icon {
    display: none;
  }
  .topbar-actions { max-width: 64vw; }
  #viewer-mode-badge { display: none !important; }

  .latest-values,
  .tools-grid,
  .form-row {
    grid-template-columns: 1fr;
  }
  .chart-wrap { height: 170px; }
  .modal {
    max-width: calc(100vw - 20px);
    max-height: calc(100dvh - 20px);
  }
}