/* ============================================
   TASKFLOW — CSS
   Dark, refined, utilitarian aesthetic
   Font: DM Sans + DM Mono
   ============================================ */

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

:root {
  --bg: #131313;
  --surface: #1c1c1c;
  --surface-hover: #242424;
  --surface-active: #2a2a2a;
  --border: #2e2e2e;
  --border-light: #3a3a3a;
  --text: #e8e8e8;
  --text-muted: #888;
  --text-dim: #555;
  --accent: #e8643a;
  --accent-hover: #f07040;
  --accent-dim: rgba(232, 100, 58, 0.12);
  --p1: #e85a5a;
  --p2: #e8a83a;
  --p3: #5ab4e8;
  --p4: #555;
  --green: #4caf82;
  --radius: 8px;
  --radius-sm: 5px;
  --sidebar-w: 260px;
  --transition: 0.18s ease;
  --font: 'DM Sans', sans-serif;
  --mono: 'DM Mono', monospace;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.6);
}

html, body { height: 100%; overflow: hidden; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  display: flex;
}

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: #555; }

.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  transition: width var(--transition), min-width var(--transition);
  position: relative;
  z-index: 10;
}
.sidebar.collapsed { width: 0; min-width: 0; border-right: none; overflow: hidden; }
.sidebar-top { display: flex; align-items: center; justify-content: space-between; padding: 16px 14px 12px; border-bottom: 1px solid var(--border); }
.app-brand { display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 600; letter-spacing: -0.3px; }
.brand-icon { color: var(--accent); font-size: 18px; line-height: 1; }
.sidebar-actions { padding: 12px 10px; }
.btn-add-task-main { width: 100%; background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(232,100,58,0.2); border-radius: var(--radius); padding: 9px 14px; font-family: var(--font); font-size: 13.5px; font-weight: 500; cursor: pointer; display: flex; align-items: center; gap: 8px; transition: all var(--transition); }
.btn-add-task-main:hover { background: rgba(232,100,58,0.18); border-color: rgba(232,100,58,0.35); }
.sidebar-nav { padding: 6px 8px; display: flex; flex-direction: column; gap: 2px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: var(--radius-sm); color: var(--text-muted); text-decoration: none; font-size: 13.5px; font-weight: 450; transition: all var(--transition); cursor: pointer; }
.nav-item:hover { background: var(--surface-hover); color: var(--text); }
.nav-item.active { background: var(--surface-active); color: var(--text); }
.nav-item svg { flex-shrink: 0; opacity: 0.7; }
.nav-badge { margin-left: auto; background: var(--accent); color: #fff; font-size: 11px; font-weight: 600; padding: 1px 6px; border-radius: 99px; min-width: 18px; text-align: center; }
.sidebar-section { padding: 8px 8px 0; flex: 1; }
.section-header { display: flex; align-items: center; justify-content: space-between; padding: 6px 10px; font-size: 11.5px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-dim); }
.project-list { list-style: none; display: flex; flex-direction: column; gap: 1px; padding-bottom: 8px; }
.project-item { display: flex; align-items: center; gap: 9px; padding: 8px 10px; border-radius: var(--radius-sm); cursor: pointer; color: var(--text-muted); font-size: 13.5px; transition: all var(--transition); position: relative; user-select: none; }
.project-item:hover { background: var(--surface-hover); color: var(--text); }
.project-item.active { background: var(--surface-active); color: var(--text); }
.project-dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.project-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.project-count { font-family: var(--mono); font-size: 11px; color: var(--text-dim); margin-left: auto; }
.sidebar-footer { padding: 12px 14px; border-top: 1px solid var(--border); }
.karma-bar { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--text-muted); }
.karma-track { flex: 1; height: 3px; background: var(--border); border-radius: 99px; overflow: hidden; }
.karma-fill { height: 100%; background: var(--accent); border-radius: 99px; width: 0%; transition: width 0.5s ease; }
.karma-score { font-family: var(--mono); font-size: 11px; color: var(--accent); min-width: 24px; text-align: right; }

.main { flex: 1; display: flex; flex-direction: column; height: 100vh; overflow: hidden; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; border-bottom: 1px solid var(--border); background: var(--bg); gap: 16px; flex-shrink: 0; }
.topbar-left { display: flex; align-items: center; gap: 10px; }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.page-title { font-size: 18px; font-weight: 600; letter-spacing: -0.3px; }
.search-wrap { display: flex; align-items: center; gap: 8px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 7px 12px; color: var(--text-dim); }
.search-input { background: none; border: none; outline: none; color: var(--text); font-family: var(--font); font-size: 13px; width: 180px; }
.search-input::placeholder { color: var(--text-dim); }
.view-switcher { display: flex; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.view-btn { background: none; border: none; padding: 7px 10px; color: var(--text-dim); cursor: pointer; transition: all var(--transition); display: flex; align-items: center; }
.view-btn:hover { background: var(--surface-hover); color: var(--text); }
.view-btn.active { background: var(--surface-active); color: var(--accent); }
.content-area { flex: 1; overflow-y: auto; overflow-x: auto; padding: 24px; }

.list-view { max-width: 780px; margin: 0 auto; }
.section-block { margin-bottom: 28px; }
.section-title-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.section-label { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-dim); flex: 1; }
.section-actions { display: flex; gap: 4px; }
.task-row { display: flex; align-items: flex-start; gap: 10px; padding: 10px 10px; border-radius: var(--radius-sm); transition: background var(--transition); cursor: pointer; animation: rowIn 0.15s ease; }
.task-row:hover { background: var(--surface-hover); }
.task-row.completed .task-text { opacity: 0.4; text-decoration: line-through; }
.task-check { width: 17px; height: 17px; border: 1.5px solid var(--border-light); border-radius: 50%; flex-shrink: 0; cursor: pointer; transition: all var(--transition); display: flex; align-items: center; justify-content: center; margin-top: 1px; }
.task-check:hover { border-color: var(--accent); background: var(--accent-dim); }
.task-check.done { background: var(--green); border-color: var(--green); }
.task-check.done::after { content: ''; width: 5px; height: 8px; border-right: 2px solid #fff; border-bottom: 2px solid #fff; transform: rotate(45deg) translate(-1px,-1px); }
.task-row[data-priority="1"] .task-check { border-color: var(--p1); }
.task-row[data-priority="2"] .task-check { border-color: var(--p2); }
.task-row[data-priority="3"] .task-check { border-color: var(--p3); }
.task-body { flex: 1; min-width: 0; }
.task-text { font-size: 13.5px; font-weight: 450; word-break: break-word; }
.task-desc { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.task-meta { display: flex; gap: 8px; margin-top: 4px; align-items: center; flex-wrap: wrap; }
.task-date { font-family: var(--mono); font-size: 11px; color: var(--text-dim); display: flex; align-items: center; gap: 4px; }
.task-date.overdue { color: var(--p1); }
.task-date.today { color: var(--green); }
.task-label { font-size: 10.5px; font-weight: 500; padding: 1px 7px; border-radius: 99px; background: var(--surface-active); color: var(--text-muted); }
.task-actions { display: flex; gap: 2px; opacity: 0; transition: opacity var(--transition); }
.task-row:hover .task-actions { opacity: 1; }

.board-view { display: flex; gap: 18px; align-items: flex-start; height: 100%; padding-bottom: 16px; }
.board-column { width: 280px; min-width: 280px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); display: flex; flex-direction: column; max-height: calc(100vh - 130px); }
.board-col-header { display: flex; align-items: center; gap: 8px; padding: 13px 15px 11px; border-bottom: 1px solid var(--border); }
.board-col-title { font-size: 11.5px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--text-muted); flex: 1; }
.board-col-count { font-family: var(--mono); font-size: 11px; color: var(--text-dim); }
.board-col-tasks { padding: 10px; flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; }
.board-task { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 11px 12px; cursor: pointer; transition: all var(--transition); animation: rowIn 0.15s ease; }
.board-task:hover { border-color: var(--border-light); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.3); }
.board-task.completed .board-task-name { opacity: 0.4; text-decoration: line-through; }
.board-task-name { font-size: 13px; font-weight: 450; word-break: break-word; }
.board-task-meta { display: flex; gap: 6px; margin-top: 7px; align-items: center; flex-wrap: wrap; }
.board-task-date { font-family: var(--mono); font-size: 10.5px; color: var(--text-dim); }
.board-task-date.overdue { color: var(--p1); }
.board-task-date.today { color: var(--green); }
.priority-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.p1 { background: var(--p1); } .p2 { background: var(--p2); } .p3 { background: var(--p3); } .p4 { background: var(--p4); }
.board-add-btn { display: flex; align-items: center; gap: 7px; padding: 10px 15px; font-family: var(--font); font-size: 13px; color: var(--text-dim); background: none; border: none; border-top: 1px solid var(--border); cursor: pointer; width: 100%; transition: all var(--transition); }
.board-add-btn:hover { background: var(--surface-hover); color: var(--text); }
.board-new-col { width: 280px; min-width: 280px; }
.btn-add-section { width: 100%; background: var(--surface); border: 1px dashed var(--border-light); border-radius: var(--radius); padding: 13px 15px; font-family: var(--font); font-size: 13px; color: var(--text-dim); cursor: pointer; display: flex; align-items: center; gap: 8px; transition: all var(--transition); }
.btn-add-section:hover { background: var(--surface-hover); border-color: var(--border-light); color: var(--text); }

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-dim); }
.empty-state .icon { font-size: 36px; margin-bottom: 12px; opacity: 0.4; }
.empty-state p { font-size: 14px; }

.report-view { max-width: 720px; margin: 0 auto; }
.report-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 28px; }
.stat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; }
.stat-value { font-size: 28px; font-weight: 600; letter-spacing: -0.5px; }
.stat-value.accent { color: var(--accent); }
.stat-value.green { color: var(--green); }

.btn-primary { background: var(--accent); color: #fff; border: none; border-radius: var(--radius-sm); padding: 9px 18px; font-family: var(--font); font-size: 13.5px; font-weight: 500; cursor: pointer; transition: all var(--transition); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--surface-active); color: var(--text-muted); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 9px 18px; font-family: var(--font); font-size: 13.5px; font-weight: 450; cursor: pointer; transition: all var(--transition); }
.btn-secondary:hover { background: var(--border); color: var(--text); }
.icon-btn { background: none; border: none; color: var(--text-dim); cursor: pointer; padding: 5px; border-radius: var(--radius-sm); display: flex; align-items: center; transition: all var(--transition); }
.icon-btn:hover { background: var(--surface-hover); color: var(--text); }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.65); display: flex; align-items: center; justify-content: center; z-index: 1000; backdrop-filter: blur(3px); animation: fadeIn 0.15s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal { background: var(--surface); border: 1px solid var(--border-light); border-radius: 12px; width: 520px; max-width: 95vw; max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-lg); animation: slideUp 0.2s ease; }
.modal-sm { width: 380px; }
@keyframes slideUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px 14px; border-bottom: 1px solid var(--border); }
.modal-header h2 { font-size: 16px; font-weight: 600; letter-spacing: -0.2px; }
.modal-body { padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 20px; border-top: 1px solid var(--border); }
.task-name-input { width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; font-family: var(--font); font-size: 15px; font-weight: 500; color: var(--text); outline: none; transition: border-color var(--transition); }
.task-name-input:focus { border-color: var(--accent); }
.task-desc-input { width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; font-family: var(--font); font-size: 13px; color: var(--text); outline: none; resize: vertical; transition: border-color var(--transition); }
.task-desc-input:focus { border-color: var(--accent); }
.task-meta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.meta-group { display: flex; flex-direction: column; gap: 5px; min-width: 120px; flex: 1; }
.meta-group.full-width { min-width: 100%; }
.meta-group label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); font-weight: 600; }
.meta-input { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 7px 10px; font-family: var(--font); font-size: 13px; color: var(--text); outline: none; transition: border-color var(--transition); }
.meta-input:focus { border-color: var(--accent); }
select.meta-input { cursor: pointer; }
select.meta-input option { background: var(--surface); }
.color-picker-row { display: flex; align-items: center; gap: 12px; }
.color-picker-row label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); font-weight: 600; }
.color-options { display: flex; gap: 8px; flex-wrap: wrap; }
.color-swatch { width: 22px; height: 22px; border-radius: 50%; cursor: pointer; transition: transform var(--transition); border: 2px solid transparent; }
.color-swatch:hover { transform: scale(1.2); }
.color-swatch.selected { border-color: #fff; transform: scale(1.15); }

.context-menu { position: fixed; background: var(--surface); border: 1px solid var(--border-light); border-radius: var(--radius); padding: 5px; z-index: 2000; box-shadow: var(--shadow); min-width: 160px; animation: fadeIn 0.12s ease; }
.ctx-item { display: flex; align-items: center; gap: 9px; width: 100%; background: none; border: none; padding: 8px 10px; border-radius: var(--radius-sm); font-family: var(--font); font-size: 13px; color: var(--text-muted); cursor: pointer; transition: all var(--transition); }
.ctx-item:hover { background: var(--surface-hover); color: var(--text); }
.ctx-item.ctx-danger { color: var(--p1); }
.ctx-item.ctx-danger:hover { background: rgba(232,90,90,0.1); }
.ctx-divider { border: none; border-top: 1px solid var(--border); margin: 4px 0; }

.toast-container { position: fixed; bottom: 24px; right: 24px; display: flex; flex-direction: column; gap: 8px; z-index: 3000; }
.toast { background: var(--surface); border: 1px solid var(--border-light); border-radius: var(--radius); padding: 11px 16px; font-size: 13px; color: var(--text); box-shadow: var(--shadow); animation: toastIn 0.2s ease; display: flex; align-items: center; gap: 8px; }
.toast.success { border-left: 3px solid var(--green); }
.toast.error { border-left: 3px solid var(--p1); }
@keyframes toastIn { from { opacity: 0; transform: translateX(16px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { to { opacity: 0; transform: translateX(16px); } }

.add-task-inline { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: var(--radius-sm); color: var(--text-dim); font-size: 13px; cursor: pointer; transition: all var(--transition); }
.add-task-inline:hover { background: var(--surface-hover); color: var(--accent); }
@keyframes rowIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
::selection { background: var(--accent-dim); }