:root {
  --bg: #eff3ff;
  --paper: #ffffff;
  --ink: #1d2940;
  --muted: #66748b;
  --line: #d5dcec;
  --blue: #1f5eff;
  --blue-soft: #dce7ff;
  --green: #1d8f5c;
  --orange: #f28f3b;
  --red: #d94f30;
  --gold: #d4a017;
  --shadow: 0 18px 48px rgba(40, 69, 123, 0.12);
  --radius: 24px;
  font-family: "Segoe UI", Tahoma, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(31, 94, 255, 0.12), transparent 26%),
    linear-gradient(180deg, #f8fbff 0%, var(--bg) 100%);
  color: var(--ink);
}

.app-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.hero {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 24px;
}

.hero,
.card,
.summary-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(213, 220, 236, 0.7);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero {
  padding: 28px;
}

.hero h1,
.card h2,
.card h3 {
  margin: 0;
}

.hero-copy,
.muted,
.task-owner,
.task-notes,
.prose-card li,
.prose-card p {
  color: var(--muted);
}

.hero-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.version-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(31, 94, 255, 0.1);
  color: var(--blue);
  font-weight: 700;
  font-size: 0.88rem;
}

.hero-signoff {
  margin: 14px 0 0;
  color: var(--blue);
  font-weight: 700;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--blue);
  font-weight: 700;
}

.hero-panel,
.session-card,
.card,
.summary-card,
.inset-card,
.area-card,
.task-card,
.user-card,
.mini-task {
  border-radius: var(--radius);
}

.session-card,
.card,
.inset-card,
.summary-card,
.user-card {
  padding: 20px;
}

.session-row,
.filters,
.task-card-top,
.card-header.split,
.task-actions-row {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.top-grid,
.panel-grid,
.field-grid,
.user-grid {
  display: grid;
  gap: 16px;
}

.top-grid {
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: 18px;
}

.summary-card {
  min-height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.summary-card strong {
  font-size: 2.2rem;
}

.accent-blue {
  background: linear-gradient(140deg, rgba(31, 94, 255, 0.16), rgba(255, 255, 255, 0.95));
}

.accent-gold {
  background: linear-gradient(140deg, rgba(212, 160, 23, 0.16), rgba(255, 255, 255, 0.95));
}

.accent-orange {
  background: linear-gradient(140deg, rgba(242, 143, 59, 0.16), rgba(255, 255, 255, 0.95));
}

.accent-green {
  background: linear-gradient(140deg, rgba(29, 143, 92, 0.16), rgba(255, 255, 255, 0.95));
}

.tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.tab-button,
.primary-button,
.secondary-button {
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
  cursor: pointer;
  transition: transform 160ms ease, opacity 160ms ease, background 160ms ease;
}

.tab-button {
  background: rgba(255, 255, 255, 0.85);
  color: var(--ink);
  border: 1px solid rgba(213, 220, 236, 0.8);
}

.tab-button.active,
.primary-button,
.secondary-button.active {
  background: var(--blue);
  color: #fff;
}

.secondary-button {
  background: var(--blue-soft);
  color: var(--blue);
}

.tab-button:hover,
.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-1px);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.panel-grid {
  grid-template-columns: 1.15fr 0.85fr;
  margin-bottom: 16px;
}

.single-secondary {
  grid-template-columns: 1fr;
}

.card-header {
  margin-bottom: 18px;
}

.area-overview,
.task-list,
.user-grid {
  display: grid;
  gap: 14px;
}

.area-overview {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.area-card {
  padding: 16px;
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 160ms ease, box-shadow 160ms ease;
  background: linear-gradient(180deg, rgba(240, 244, 255, 0.9), rgba(255, 255, 255, 0.9));
  border: 1px solid var(--line);
}

.area-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(40, 69, 123, 0.12);
}

.area-card-head,
.task-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.area-bars {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.mini-stat {
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
}

.mini-stat.red {
  background: rgba(217, 79, 48, 0.12);
  color: var(--red);
}

.mini-stat.amber {
  background: rgba(212, 160, 23, 0.14);
  color: #a06f04;
}

.mini-stat.green {
  background: rgba(29, 143, 92, 0.14);
  color: var(--green);
}

.task-actions-row {
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.collapsible-layout {
  grid-template-columns: 1fr;
  margin-top: 18px;
}

.collapsible-panel {
  overflow: hidden;
  max-height: 1200px;
  opacity: 1;
  transition: max-height 220ms ease, opacity 220ms ease, margin 220ms ease, padding 220ms ease;
}

.collapsible-panel.collapsed {
  max-height: 0;
  opacity: 0;
  margin: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-width: 0;
}

.form-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  margin-bottom: 24px;
}

.task-form,
.field-grid {
  display: grid;
  gap: 14px;
}

.field-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.full-span {
  grid-column: 1 / -1;
}

label {
  display: grid;
  gap: 8px;
  font-weight: 600;
}

input,
textarea,
select {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--line);
  padding: 12px 14px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

textarea {
  resize: vertical;
}

.task-list {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

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

.task-card {
  padding: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(241, 245, 255, 0.96));
  border: 1px solid var(--line);
}

.task-card h3 {
  margin: 16px 0 10px;
}

.task-meta {
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.92rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.84rem;
  font-weight: 700;
}

.pill-area {
  background: rgba(31, 94, 255, 0.1);
  color: var(--blue);
}

.prose-card ol {
  padding-right: 20px;
}

.user-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 18px;
}

.user-card,
.mini-task,
.inset-card {
  background: linear-gradient(180deg, rgba(241, 245, 255, 0.9), rgba(255, 255, 255, 0.94));
  border: 1px solid var(--line);
}

.user-card,
.mini-task {
  display: grid;
  gap: 8px;
}

.empty-state,
.tiny {
  margin: 0;
  color: var(--muted);
}

.warning {
  color: var(--red);
}

.hidden {
  display: none !important;
}

canvas {
  width: 100%;
  height: auto;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 247, 255, 0.96));
  border-radius: 20px;
}

@media (max-width: 960px) {
  .hero,
  .panel-grid,
  .form-layout,
  .top-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .app-shell {
    width: min(100% - 20px, 1000px);
  }

  .session-row,
  .filters,
  .card-header.split,
  .task-card-top,
  .hero-title-row,
  .task-actions-row {
    flex-direction: column;
    align-items: stretch;
  }

  .task-list {
    grid-template-columns: 1fr;
  }
}