/* =============================================
   Dark Theme — Project Tracker
   ============================================= */

:root {
  --bg-base:       #0d0f12;
  --bg-surface:    #161a20;
  --bg-elevated:   #1e242d;
  --bg-hover:      #252c38;
  --border:        #2a3241;
  --border-light:  #333d4d;

  --text-primary:  #e8edf5;
  --text-secondary:#8b96a8;
  --text-muted:    #5a6474;

  --accent:        #4c9cf8;
  --accent-hover:  #3a8be8;
  --accent-dim:    rgba(76, 156, 248, 0.15);

  --success:       #3dba74;
  --success-dim:   rgba(61, 186, 116, 0.15);
  --warning:       #f5a623;
  --warning-dim:   rgba(245, 166, 35, 0.15);
  --danger:        #e05252;
  --danger-dim:    rgba(224, 82, 82, 0.15);
  --info:          #5bc4d6;

  --radius-sm:     4px;
  --radius:        8px;
  --radius-lg:     12px;

  --shadow:        0 2px 8px rgba(0,0,0,0.4);
  --shadow-lg:     0 4px 20px rgba(0,0,0,0.6);
}

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

html, body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

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

/* ---- Layout ---- */
.layout-wrapper { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  z-index: 100;
}

.sidebar-brand {
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--border);
}
.sidebar-brand h1 {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.3px;
}
.sidebar-brand .brand-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.sidebar-nav { padding: 8px 0; flex: 1; }

.nav-section-label {
  padding: 12px 16px 4px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: 13px;
  border-left: 2px solid transparent;
  transition: all 0.15s;
}
.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: var(--bg-elevated);
  color: var(--text-primary);
  text-decoration: none;
  border-left-color: var(--accent);
}
.sidebar-nav a .nav-icon { font-size: 15px; width: 18px; text-align: center; }

/* Main content */
.main-content {
  margin-left: 220px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar .page-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}
.topbar .breadcrumb {
  font-size: 12px;
  color: var(--text-muted);
  margin-left: auto;
}
.topbar .breadcrumb a { color: var(--text-secondary); }

.content-area { padding: 24px; flex: 1; }

/* ---- Cards / Panels ---- */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  overflow: hidden;
}
.card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-elevated);
}
.card-header h2,
.card-header h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}
.card-body { padding: 20px; }

/* Stat cards row */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}
.stat-card .stat-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-card .stat-value { font-size: 22px; font-weight: 700; color: var(--text-primary); margin-top: 4px; }
.stat-card .stat-sub   { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.stat-card.accent  { border-color: var(--accent); }
.stat-card.success { border-color: var(--success); }
.stat-card.warning { border-color: var(--warning); }
.stat-card.danger  { border-color: var(--danger); }

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; }
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.data-table th {
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
table.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}
table.data-table tr:hover td { background: var(--bg-hover); }
table.data-table tr:last-child td { border-bottom: none; }

/* Yii GridView overrides */
.grid-view table { width: 100%; border-collapse: collapse; font-size: 13px; }
.grid-view th { background: var(--bg-elevated); color: var(--text-muted); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; padding: 10px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.grid-view td { padding: 10px 14px; border-bottom: 1px solid var(--border); color: var(--text-primary); vertical-align: middle; }
.grid-view tr:hover td { background: var(--bg-hover); }
.grid-view .summary { color: var(--text-muted); font-size: 12px; padding: 8px 0; }
.grid-view .empty { text-align: center; color: var(--text-muted); padding: 40px; }

/* Pagination */
.pagination { display: flex; gap: 4px; padding: 12px 0; }
.pagination li { list-style: none; }
.pagination li a,
.pagination li span {
  display: inline-block;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 12px;
  background: var(--bg-surface);
}
.pagination li.active span { background: var(--accent); border-color: var(--accent); color: #fff; }
.pagination li a:hover { background: var(--bg-hover); text-decoration: none; }

/* ---- Forms ---- */
.form-group { margin-bottom: 16px; }
label.control-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 5px;
}
.form-control {
  display: block;
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  transition: border-color 0.15s;
  outline: none;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { min-height: 80px; resize: vertical; }
select.form-control { cursor: pointer; }

.has-error .form-control { border-color: var(--danger); }
.has-error .help-block { color: var(--danger); font-size: 11px; margin-top: 3px; }
.help-block { color: var(--text-muted); font-size: 11px; margin-top: 3px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  white-space: nowrap;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary   { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-success   { background: var(--success); color: #fff; border-color: var(--success); }
.btn-success:hover { background: #32a865; color: #fff; }
.btn-danger    { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover  { background: #c43b3b; color: #fff; }
.btn-default, .btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-light);
}
.btn-default:hover, .btn-secondary:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-sm { padding: 4px 9px; font-size: 12px; }
.btn-xs { padding: 2px 7px; font-size: 11px; }
.btn-lg { padding: 10px 20px; font-size: 15px; }

/* Action column buttons */
.action-column a { margin: 0 2px; }

/* ---- Badges / Status ---- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.badge-planned     { background: var(--bg-elevated); color: var(--text-secondary); border: 1px solid var(--border-light); }
.badge-started     { background: var(--accent-dim); color: var(--accent); border: 1px solid var(--accent); }
.badge-in_progress { background: var(--warning-dim); color: var(--warning); border: 1px solid var(--warning); }
.badge-completed   { background: var(--success-dim); color: var(--success); border: 1px solid var(--success); }
.badge-canceled    { background: var(--danger-dim); color: var(--danger); border: 1px solid var(--danger); }

/* ---- Alerts ---- */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid;
  margin-bottom: 16px;
  font-size: 13px;
}
.alert-success { background: var(--success-dim); border-color: var(--success); color: var(--success); }
.alert-danger, .alert-error { background: var(--danger-dim); border-color: var(--danger); color: var(--danger); }
.alert-warning { background: var(--warning-dim); border-color: var(--warning); color: var(--warning); }
.alert-info { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.alert .close { float: right; cursor: pointer; opacity: 0.7; background: none; border: none; color: inherit; font-size: 16px; line-height: 1; }

/* ---- Project tree ---- */
.project-tree { padding: 0; }
.project-tree ul { list-style: none; padding-left: 20px; }
.project-tree > ul { padding-left: 0; }
.project-tree li { padding: 3px 0; }
.project-tree .tree-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-primary);
  font-size: 13px;
}
.project-tree .tree-item:hover { background: var(--bg-hover); }
.project-tree .tree-item .tree-icon { color: var(--text-muted); font-size: 12px; }
.project-tree .tree-item .tree-label { flex: 1; }
.project-tree .tree-item .tree-badge { font-size: 10px; color: var(--text-muted); }

/* ---- Tabs ---- */
.nav-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  gap: 2px;
}
.nav-tabs li { list-style: none; }
.nav-tabs li a {
  display: block;
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: 13px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.nav-tabs li.active a,
.nav-tabs li a:hover {
  color: var(--text-primary);
  text-decoration: none;
}
.nav-tabs li.active a { border-bottom-color: var(--accent); }

/* ---- Misc ---- */
.amount { font-variant-numeric: tabular-nums; }
.amount-positive { color: var(--success); }
.amount-negative { color: var(--danger); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.ml-auto { margin-left: auto; }

/* jQuery UI Autocomplete dark override */
.ui-autocomplete {
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border-light) !important;
  border-radius: var(--radius-sm) !important;
  box-shadow: var(--shadow-lg) !important;
  font-size: 13px !important;
  z-index: 9999 !important;
  max-height: 220px;
  overflow-y: auto;
}
.ui-menu-item-wrapper {
  padding: 7px 12px !important;
  color: var(--text-primary) !important;
}
.ui-state-active, .ui-menu-item-wrapper.ui-state-active {
  background: var(--accent-dim) !important;
  color: var(--accent) !important;
  border: none !important;
}

/* Yii2 debug bar hide on prod — shown in dev */
#yii-debug-toolbar { opacity: 0.85; }

/* ---- Responsive adjustments (desktop-first) ---- */
@media (max-width: 900px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; }
}