:root {
  --color-primary: #0d7d7d;
  --color-primary-dark: #085f5f;
  --color-primary-light: #e6f4f4;
  --color-accent: #2563eb;
  --color-accent-light: #eaf0fe;
  --color-bg: #f6f8f9;
  --color-surface: #ffffff;
  --color-border: #e2e8e8;
  --color-text: #1a2b2b;
  --color-text-muted: #5c6f6f;
  --color-danger: #dc2626;
  --color-danger-light: #fdecec;
  --color-warning: #d97706;
  --color-warning-light: #fef3e2;
  --color-success: #16a34a;
  --color-success-light: #e9f9ee;

  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(16, 40, 40, 0.06);
  --shadow-md: 0 4px 16px rgba(16, 40, 40, 0.08);
  --sidebar-width: 240px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.5;
}

h1, h2, h3, h4 { font-family: var(--font-display); margin: 0; color: var(--color-text); }

a { color: inherit; text-decoration: none; }

button, input, select, textarea { font-family: inherit; font-size: inherit; }

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 20;
  font-size: 20px;
  vertical-align: middle;
}

/* Layout */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  z-index: 40;
  transition: transform 0.2s ease;
}

.sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 20px 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--color-primary-dark);
}

.sidebar-nav { display: flex; flex-direction: column; gap: 2px; padding: 8px 12px; flex: 1; }

.sidebar-nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

.sidebar-nav a:hover { background: var(--color-primary-light); color: var(--color-primary-dark); }
.sidebar-nav a.active { background: var(--color-primary); color: #fff; }

.sidebar-user {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px;
  border-top: 1px solid var(--color-border);
}

.avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-family: var(--font-display);
  flex-shrink: 0;
}

.sidebar-user-meta { flex: 1; min-width: 0; }
.sidebar-user-name { font-weight: 600; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-role { font-size: 11.5px; color: var(--color-text-muted); }

.icon-btn {
  display: flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  background: transparent; border: none; cursor: pointer;
}
.icon-btn:hover { background: var(--color-danger-light); color: var(--color-danger); }

.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 28px 32px 60px;
  min-width: 0;
}

.mobile-nav-toggle {
  display: none;
  position: fixed; top: 14px; left: 14px; z-index: 50;
  width: 40px; height: 40px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  align-items: center; justify-content: center;
  cursor: pointer;
}

/* Page header */
.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 24px; gap: 16px; flex-wrap: wrap;
}
.page-header h1 { font-size: 22px; font-weight: 800; }
.page-subtitle { color: var(--color-text-muted); margin-top: 4px; font-size: 13.5px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 600; font-size: 13.5px;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-secondary { background: var(--color-surface); border-color: var(--color-border); color: var(--color-text); }
.btn-secondary:hover { background: var(--color-bg); }
.btn-danger { background: var(--color-danger-light); color: var(--color-danger); }
.btn-danger:hover { background: #fbdada; }
.btn-sm { padding: 6px 10px; font-size: 12.5px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Cards / stat grid */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 28px; }
.stat-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 18px 20px;
}
.stat-card .stat-value { font-family: var(--font-display); font-size: 26px; font-weight: 800; }
.stat-card .stat-label { color: var(--color-text-muted); font-size: 12.5px; margin-top: 2px; }
.stat-card.danger .stat-value { color: var(--color-danger); }
.stat-card.warning .stat-value { color: var(--color-warning); }
.stat-card.success .stat-value { color: var(--color-success); }

.panel {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); margin-bottom: 24px; overflow: hidden;
}
.panel-header {
  padding: 14px 20px; border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between;
  font-weight: 700; font-family: var(--font-display); font-size: 14.5px;
}

/* Task list rows */
.task-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 20px; border-bottom: 1px solid var(--color-border);
}
.task-row:last-child { border-bottom: none; }
.task-row:hover { background: var(--color-bg); }
.task-row-title { flex: 1; min-width: 0; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.task-row-meta { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.empty-state { padding: 32px 20px; text-align: center; color: var(--color-text-muted); }

/* Badges */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 9px; border-radius: 999px;
  font-size: 11.5px; font-weight: 700; white-space: nowrap;
}
.badge-low { background: #f1f5f9; color: #475569; }
.badge-medium { background: var(--color-accent-light); color: var(--color-accent); }
.badge-high { background: var(--color-warning-light); color: var(--color-warning); }
.badge-urgent { background: var(--color-danger-light); color: var(--color-danger); }
.badge-overdue { background: var(--color-danger-light); color: var(--color-danger); }
.badge-project { background: var(--color-primary-light); color: var(--color-primary-dark); }

/* Kanban board */
.board { display: flex; gap: 14px; overflow-x: auto; padding-bottom: 12px; align-items: flex-start; }
.board-column {
  background: #eef2f2; border-radius: var(--radius-lg);
  width: 280px; flex-shrink: 0; padding: 10px; min-height: 200px;
}
.board-column-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 8px 10px; font-family: var(--font-display); font-weight: 700; font-size: 13px;
}
.board-column-count {
  background: rgba(0,0,0,0.06); border-radius: 999px; padding: 1px 8px; font-size: 11.5px; font-weight: 700;
}
.board-cards { display: flex; flex-direction: column; gap: 8px; min-height: 40px; }
.board-card {
  background: var(--color-surface); border-radius: var(--radius-md);
  padding: 12px; box-shadow: var(--shadow-sm); cursor: grab;
  border-left: 3px solid var(--color-primary);
}
.board-card.dragging { opacity: 0.4; }
.board-card-title { font-weight: 600; font-size: 13.5px; margin-bottom: 8px; }
.board-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.board-card-meta { display: flex; align-items: center; gap: 6px; color: var(--color-text-muted); font-size: 11.5px; }
.board-column.drop-target { outline: 2px dashed var(--color-primary); outline-offset: -4px; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; font-size: 12.5px; margin-bottom: 6px; color: var(--color-text-muted); }
.form-control {
  width: 100%; padding: 9px 12px; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text);
}
.form-control:focus { outline: 2px solid var(--color-primary); outline-offset: 0; border-color: var(--color-primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
textarea.form-control { resize: vertical; min-height: 80px; }

/* Modal */
.modal-overlay {
  display: none; position: fixed; inset: 0; background: rgba(10, 25, 25, 0.45);
  z-index: 100; align-items: center; justify-content: center; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--color-surface); border-radius: var(--radius-lg);
  width: 100%; max-width: 520px; max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-md);
}
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--color-border); }
.modal-header h3 { font-size: 16px; }
.modal-body { padding: 20px; }
.modal-footer { padding: 16px 20px; border-top: 1px solid var(--color-border); display: flex; justify-content: flex-end; gap: 10px; }

/* Login page */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--color-bg); padding: 20px; }
.auth-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 36px 32px; width: 100%; max-width: 380px; box-shadow: var(--shadow-md); }
.auth-brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 800; font-size: 19px; color: var(--color-primary-dark); margin-bottom: 24px; }
.auth-error { background: var(--color-danger-light); color: var(--color-danger); padding: 10px 14px; border-radius: var(--radius-sm); font-size: 13px; margin-bottom: 16px; }

/* Checklist */
.checklist-item { display: flex; align-items: center; gap: 10px; padding: 6px 0; }
.checklist-item input[type="checkbox"] { width: 17px; height: 17px; accent-color: var(--color-primary); }
.checklist-item.done label { text-decoration: line-through; color: var(--color-text-muted); }
.progress-bar { height: 6px; background: var(--color-border); border-radius: 999px; overflow: hidden; margin: 8px 0 14px; }
.progress-bar-fill { height: 100%; background: var(--color-primary); }

/* Comments */
.comment { padding: 12px 0; border-bottom: 1px solid var(--color-border); }
.comment:last-child { border-bottom: none; }
.comment-header { display: flex; justify-content: space-between; font-size: 12px; color: var(--color-text-muted); margin-bottom: 4px; }
.comment-header strong { color: var(--color-text); }

/* Table (team page) */
table.data-table { width: 100%; border-collapse: collapse; }
table.data-table th, table.data-table td { text-align: left; padding: 10px 20px; border-bottom: 1px solid var(--color-border); font-size: 13.5px; }
table.data-table th { color: var(--color-text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.02em; }

/* Project pills grid */
.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.project-card {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: 18px; border-top: 4px solid var(--color-primary);
}
.project-card h3 { font-size: 15.5px; margin-bottom: 6px; }
.project-card p { color: var(--color-text-muted); font-size: 12.5px; margin: 0 0 12px; min-height: 32px; }
.project-card-footer { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--color-text-muted); }

.flash { padding: 10px 16px; border-radius: var(--radius-sm); margin-bottom: 18px; font-size: 13.5px; }
.flash-success { background: var(--color-success-light); color: var(--color-success); }
.flash-error { background: var(--color-danger-light); color: var(--color-danger); }

/* Toolbar: view toggle + filter bar */
.toolbar { display: flex; flex-direction: column; gap: 12px; margin-bottom: 18px; }
.view-toggle { display: inline-flex; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; width: fit-content; }
.view-toggle-btn { display: flex; align-items: center; gap: 6px; padding: 8px 14px; font-size: 12.5px; font-weight: 600; color: var(--color-text-muted); }
.view-toggle-btn .material-symbols-outlined { font-size: 17px; }
.view-toggle-btn.active { background: var(--color-primary); color: #fff; }
.view-toggle-btn:not(.active):hover { background: var(--color-bg); }

.filter-bar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 12px 14px;
}
.filter-bar .form-control { width: auto; min-width: 130px; padding: 7px 10px; font-size: 12.5px; }
.filter-checkbox { display: flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 500; color: var(--color-text-muted); white-space: nowrap; }
.filter-checkbox input { width: 15px; height: 15px; accent-color: var(--color-primary); }

/* Task list table (project List view) */
.task-list-table th, .task-list-table td { padding: 11px 20px; }
.task-list-row { cursor: pointer; }
.task-list-title { font-weight: 600; }

/* Project card drag handle */
.project-card { position: relative; cursor: grab; }
.project-card.dragging { opacity: 0.4; }
.project-card-drag-hint { position: absolute; top: 10px; right: 10px; color: var(--color-text-muted); opacity: 0.4; }
.project-card-drag-hint .material-symbols-outlined { font-size: 18px; }

/* Responsive */
@media (max-width: 880px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 70px 16px 40px; }
  .mobile-nav-toggle { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  div[style*="grid-template-columns: 2fr 1fr"] { grid-template-columns: 1fr !important; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .filter-bar .form-control { width: 100%; }
  .filter-bar a[style*="margin-left:auto"] { margin-left: 0 !important; }
}