:root {
  --bg: #eef2f7;
  --surface: #ffffff;
  --surface-soft: #f7f9fc;
  --text: #1f2937;
  --text-muted: #667085;
  --border: #dbe3ee;
  --brand: #0f5bd8;
  --brand-soft: #dce9ff;
  --todo: #a97a00;
  --todo-soft: #fff3d7;
  --inprogress: #0069c7;
  --inprogress-soft: #def0ff;
  --done: #0f8b58;
  --done-soft: #ddf7eb;
  --danger: #c43d3d;
  --shadow: 0 10px 28px rgba(26, 38, 60, 0.08);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 8% 8%, #ffffff 0%, rgba(255, 255, 255, 0) 30%),
    radial-gradient(circle at 92% 4%, #e5ecff 0%, rgba(229, 236, 255, 0) 34%),
    var(--bg);
  color: var(--text);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 290px 1fr;
}

.sidebar {
  border-right: 1px solid var(--border);
  background: linear-gradient(180deg, #fbfdff 0%, #f2f6fc 100%);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.brand-block h1 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

.brand-kicker {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.brand-subtitle {
  margin: 8px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.filter-panel,
.controls-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.filter-panel h2,
.controls-panel h2 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.filter-panel label,
.controls-panel label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

.control-subhead {
  margin: 8px 0 0;
  font-size: 0.84rem;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.filter-select,
.wip-input {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.wip-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.filter-select:focus,
.wip-input:focus,
#searchInput:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(15, 91, 216, 0.16);
}

.workspace {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.is-hidden {
  display: none !important;
}

.topbar {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.search-wrap {
  flex: 1;
  min-width: 260px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  box-shadow: var(--shadow);
}

.search-icon {
  color: var(--text-muted);
  margin-right: 8px;
}

#searchInput {
  width: 100%;
  border: 0;
  padding: 12px 4px;
  font: inherit;
  color: var(--text);
  background: transparent;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(110px, 1fr));
  gap: 10px;
}

.stat-card {
  min-width: 120px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 10px 12px;
}

.stat-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.82rem;
}

.stat-card strong {
  display: block;
  margin-top: 6px;
  font-size: 1.2rem;
}

.logout-btn {
  border: 1px solid #b8c8de;
  border-radius: 10px;
  background: #fff;
  color: #244264;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  padding: 10px 14px;
  transition: all 0.2s ease;
}

.logout-btn:hover {
  border-color: #8ea8ca;
  background: #f5f9ff;
}

.progress-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
}

.progress-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.progress-head h2 {
  margin: 0;
  font-size: 0.98rem;
}

.progress-track {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: #e7edf7;
  overflow: hidden;
}

.progress-bar {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #0f5bd8 0%, #26a2f2 100%);
  border-radius: inherit;
  transition: width 0.3s ease;
}

.view-switch {
  display: inline-flex;
  width: fit-content;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #f4f8fe;
  padding: 4px;
}

.view-btn {
  border: 0;
  background: transparent;
  color: #375171;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: 8px;
  padding: 8px 12px;
}

.view-btn.is-active {
  background: #fff;
  color: #11447f;
  box-shadow: 0 4px 10px rgba(38, 54, 79, 0.12);
}

.board {
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
  gap: 14px;
  min-height: 0;
}

.insights-view {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.insights-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.insights-header h2 {
  margin: 0;
  font-size: 1.05rem;
}

.sprint-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sprint-chip {
  border: 1px solid #c6d5ea;
  border-radius: 999px;
  padding: 6px 10px;
  background: #f6faff;
  color: #28507c;
  font-size: 0.8rem;
  cursor: pointer;
}

.sprint-chip:hover {
  background: #eaf4ff;
}

.sprint-calendar {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
}

.cal-day,
.cal-head {
  border: 1px solid #d6e0ee;
  border-radius: 10px;
  min-height: 64px;
  padding: 8px;
  background: #fff;
}

.cal-head {
  min-height: auto;
  background: #f4f8fd;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #3f5b7d;
}

.cal-day.muted {
  opacity: 0.35;
}

.cal-day-num {
  font-size: 0.82rem;
  font-weight: 700;
  color: #24476d;
}

.cal-sprints {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cal-pill {
  border-radius: 999px;
  background: #dfeeff;
  color: #154a86;
  font-size: 0.68rem;
  padding: 3px 6px;
  line-height: 1.1;
}

.agile-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 10px;
}

.metric-card {
  background: #fff;
  border: 1px solid #d7e1ee;
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 10px 12px;
}

.metric-card p {
  margin: 0;
  font-size: 0.8rem;
  color: #5f7390;
}

.metric-card strong {
  display: block;
  margin-top: 6px;
  font-size: 1.15rem;
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(240px, 1fr));
  gap: 12px;
}

.chart-card {
  background: #fff;
  border: 1px solid #d7e1ee;
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 12px;
}

.chart-card h3 {
  margin: 0;
  font-size: 0.95rem;
}

.chart-card p {
  margin: 4px 0 10px;
  color: #617794;
  font-size: 0.8rem;
}

.chart-card canvas {
  display: block;
  width: 100% !important;
  height: 220px !important;
}

.column {
  display: flex;
  flex-direction: column;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  min-height: 500px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.column.wip-breach {
  border-color: #e58585;
  box-shadow: 0 0 0 3px rgba(196, 61, 61, 0.18);
}

.column.wip-breach .column-count {
  background: #ffdede;
  color: #9d1d1d;
}

.column-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.column-header h3 {
  margin: 0;
  font-size: 0.98rem;
}

.column-count {
  min-width: 28px;
  text-align: center;
  border-radius: 999px;
  background: #e6edf8;
  color: #17407a;
  font-size: 0.8rem;
  padding: 4px 8px;
  font-weight: 700;
}

.task-list {
  min-height: 180px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background-color 0.2s ease;
  border-radius: 12px;
}

.task-list.is-drop-target {
  background: #edf4ff;
}

.card {
  background: var(--surface);
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 12px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  border-left: 6px solid #adb6c6;
  animation: fadeInUp 0.24s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(16, 41, 74, 0.14);
}

.card-title {
  margin: 0;
  font-size: 0.96rem;
}

.card-story {
  margin: 6px 0 8px;
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.3;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 10px;
  margin-bottom: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.card-grid b {
  color: var(--text);
  font-weight: 600;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.status-badge,
.priority-badge,
.overdue-badge {
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.74rem;
  font-weight: 700;
  white-space: nowrap;
}

.status-badge.todo {
  background: var(--todo-soft);
  color: var(--todo);
}

.status-badge.inprogress {
  background: var(--inprogress-soft);
  color: var(--inprogress);
}

.status-badge.done {
  background: var(--done-soft);
  color: var(--done);
}

.priority-badge {
  background: #edf1f7;
  color: #3f536d;
}

.priority-badge.high {
  background: #ffe1e1;
  color: #9e1f1f;
}

.priority-badge.medium {
  background: #fff0d8;
  color: #915d07;
}

.priority-badge.low {
  background: #dff7ea;
  color: #0f7a46;
}

.overdue-badge {
  background: #ffe3e3;
  color: var(--danger);
}

.card.overdue {
  border-color: #f5b2b2;
}

.empty-column {
  border: 1px dashed #c9d4e5;
  border-radius: 12px;
  color: var(--text-muted);
  text-align: center;
  padding: 18px 10px;
  font-size: 0.86rem;
  background: #fafcff;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(12, 21, 35, 0.52);
  padding: 20px;
  z-index: 1200;
}

.modal.is-open {
  display: flex;
}

.modal-card {
  width: min(680px, 100%);
  max-height: 86vh;
  overflow: auto;
  background: var(--surface);
  border-radius: 16px;
  padding: 20px;
  position: relative;
  box-shadow: 0 20px 48px rgba(8, 25, 48, 0.3);
}

.modal-close {
  position: absolute;
  right: 10px;
  top: 8px;
  border: 0;
  background: transparent;
  color: #5b6d85;
  font-size: 1.9rem;
  cursor: pointer;
}

.modal-card h2 {
  margin: 0 28px 14px 0;
}

.modal-body {
  display: grid;
  gap: 8px;
}

.modal-row {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  background: #fbfdff;
}

.modal-row b {
  display: inline-block;
  width: 130px;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .filter-panel,
  .controls-panel {
    display: grid;
    grid-template-columns: repeat(3, minmax(140px, 1fr));
    gap: 10px;
    align-items: end;
  }

  .filter-panel h2,
  .controls-panel h2,
  .control-subhead {
    grid-column: 1 / -1;
  }

  .board {
    grid-template-columns: 1fr;
  }

  .chart-grid {
    grid-template-columns: 1fr;
  }

  .agile-metrics {
    grid-template-columns: repeat(2, minmax(120px, 1fr));
  }

  .column {
    min-height: 260px;
  }
}

@media (max-width: 760px) {
  .workspace {
    padding: 14px;
  }

  .stats-grid {
    width: 100%;
    grid-template-columns: 1fr;
  }

  .topbar-right {
    width: 100%;
  }

  .logout-btn {
    width: 100%;
  }

  .filter-panel,
  .controls-panel {
    grid-template-columns: 1fr;
  }

  .agile-metrics {
    grid-template-columns: 1fr;
  }

  .sprint-calendar {
    gap: 6px;
  }

  .chart-card canvas {
    height: 180px !important;
  }

  .board {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .column {
    min-width: 86vw;
    min-height: 220px;
    scroll-snap-align: start;
    flex-shrink: 0;
  }

  .card {
    padding: 10px;
    border-radius: 12px;
  }

  .card-title {
    font-size: 0.9rem;
  }

  .card-story {
    margin: 4px 0 6px;
    font-size: 0.78rem;
  }

  .card-grid {
    gap: 4px 8px;
    margin-bottom: 8px;
    font-size: 0.75rem;
  }

  .status-badge,
  .priority-badge,
  .overdue-badge {
    font-size: 0.68rem;
    padding: 3px 8px;
  }
}