:root {
  color-scheme: light;
  --bg: #f3f5f8;
  --panel: #ffffff;
  --text: #192b42;
  --muted: #607087;
  --accent: #235c8c;
  --border: #dbe2eb;
  --shadow: 0 4px 18px rgba(25, 43, 66, 0.04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button, input, select, textarea { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid #3688c9; outline-offset: 3px; }
input, select, textarea { min-width: 0; }
input::placeholder, textarea::placeholder { color: #718096; }
textarea { resize: vertical; }

.app-shell {
  max-width: 1480px;
  margin: 0 auto;
  padding: 28px 36px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 26px 30px;
  margin-bottom: 32px;
  border-radius: 16px;
  background: #10243b;
  color: #fff;
}

.brand { display: flex; align-items: center; gap: 16px; min-width: 0; }
.brand-mark { width: 52px; height: 52px; flex-shrink: 0; }
.brand h1 { margin: 0; font-size: 1.35rem; font-weight: 600; letter-spacing: -0.035em; }
.brand p { margin: 5px 0 0; color: #bbcadb; font-size: 0.85rem; }
.topbar .btn-primary { background: #e8f1fb; color: #163b60; white-space: nowrap; }
.topbar .btn-primary:hover { background: #fff; }

.workspace-heading { display: flex; justify-content: space-between; align-items: end; gap: 16px; margin-bottom: 18px; }
.eyebrow { margin: 0 0 5px; color: var(--muted); font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.14em; }
.workspace-heading h2 { margin: 0; font-size: 1.55rem; font-weight: 600; letter-spacing: -0.04em; }
.workspace-note { color: var(--muted); font-size: 0.8rem; margin: 0 0 3px; }
.mobile-navigation { display: none; }

.btn {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 0.82rem;
  transition: background 160ms ease, border-color 160ms ease;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: #19476f; }
.btn-secondary { background: #f0f4f9; border-color: var(--border); color: var(--accent); }
.btn-secondary:hover { background: #e4ecf5; }
.btn-ghost { background: transparent; color: var(--muted); border-color: var(--border); }
.btn-ghost:hover { background: #edf1f6; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 26px; }
.stat-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 18px 20px; box-shadow: var(--shadow); }
.stat-card span { color: var(--muted); font-size: 0.78rem; font-weight: 500; }
.stat-card strong { display: block; font-size: 1.9rem; font-weight: 600; line-height: 1.2; margin-top: 10px; letter-spacing: -0.04em; }
.stat-card-alert { background: #fff8f6; border-color: #eed7d0; }
.stat-card-alert strong { color: #ae4031; }

.content-grid { display: grid; grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.6fr); align-items: start; gap: 24px; }
.panel { min-width: 0; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 24px; box-shadow: var(--shadow); scroll-margin-top: 16px; }
.panel-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; margin-bottom: 20px; }
.panel-header h2, .task-header h3 { margin: 0 0 4px; font-size: 1.05rem; font-weight: 600; letter-spacing: -0.02em; }
.panel-header p { margin: 0; color: var(--muted); font-size: 0.8rem; }
.panel-left .panel-header { flex-direction: column; }
.panel-actions { display: flex; gap: 8px; align-items: center; width: 100%; }

.panel-actions input, .task-form input, .task-form select,
.card-form input, .card-form select, .card-form textarea {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 7px;
  padding: 10px 11px;
  background: #fff;
  color: var(--text);
  min-height: 42px;
  font-size: 0.82rem;
}

.card-form { display: grid; gap: 14px; margin-bottom: 20px; padding: 18px; border-radius: 10px; background: #f7f9fc; border: 1px solid var(--border); }
.card-form h3 { margin: 0; font-size: 0.95rem; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.card-form label, .task-form label { display: grid; gap: 6px; min-width: 0; }
.card-form label > span, .task-form label > span { color: var(--muted); font-size: 0.75rem; font-weight: 600; }
.form-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.hidden { display: none; }

.matter-list, .task-list { display: grid; gap: 10px; }
.matter-item, .task-item, .empty-state { padding: 16px; border-radius: 9px; background: #fff; border: 1px solid var(--border); }
.matter-item { display: block; width: 100%; text-align: left; color: var(--text); transition: background 160ms ease, border-color 160ms ease; }
.matter-item:hover { background: #f7f9fc; border-color: #a8bdd4; }
.matter-item.active { border-color: #6798c1; background: #f0f6fc; box-shadow: inset 3px 0 0 var(--accent); }
.matter-title, .task-item h4 { display: block; margin: 0; font-size: 0.9rem; font-weight: 600; line-height: 1.5; overflow-wrap: anywhere; }
.matter-meta, .task-meta, .task-footer { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--muted); font-size: 0.75rem; margin-top: 9px; }
.matter-meta > span, .task-meta > span { min-width: 0; overflow-wrap: anywhere; }
.matter-meta .tag { margin-left: auto; }
.tag { display: inline-flex; align-items: center; border-radius: 5px; padding: 3px 7px; font-size: 0.68rem; font-weight: 600; }
.tag.open, .tag.low { background: #e7f4ed; color: #246244; }
.tag.pending, .tag.medium { background: #e7eff9; color: #285889; }
.tag.closed { background: #edf0f4; color: #5a677b; }
.tag.high { background: #fbece8; color: #a13f2f; }

.matter-detail { padding: 22px; border-radius: 10px; border: 1px solid var(--border); background: #f8fafc; margin-bottom: 28px; }
.matter-detail h3 { margin: 0 0 8px; font-size: 1.25rem; font-weight: 600; letter-spacing: -0.035em; overflow-wrap: anywhere; }
.matter-detail .matter-meta .tag { margin-left: 0; }
.matter-detail p { color: var(--muted); margin: 18px 0; font-size: 0.85rem; line-height: 1.7; overflow-wrap: anywhere; }
.case-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; border-top: 1px solid var(--border); padding-top: 18px; margin: 0; }
.case-facts dt { color: var(--muted); font-size: 0.7rem; margin-bottom: 5px; }
.case-facts dd { margin: 0; font-size: 0.8rem; font-weight: 500; overflow-wrap: anywhere; }

.task-section { display: grid; gap: 16px; }
.task-header { display: grid; gap: 14px; }
.task-form { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto; gap: 12px; align-items: end; padding: 16px; background: #f8fafc; border: 1px solid var(--border); border-radius: 9px; }
.task-title-field { grid-column: 1 / -1; }
.task-matter-field { grid-column: 1 / 3; }
.task-toolbar { display: flex; flex-wrap: wrap; gap: 4px; border-bottom: 1px solid var(--border); padding-bottom: 12px; }
.filter-pill { border: 1px solid transparent; background: transparent; color: var(--muted); border-radius: 6px; padding: 7px 12px; font-size: 0.78rem; font-weight: 500; }
.filter-pill:hover { background: #f0f4f9; }
.filter-pill.active { background: #e7eff9; color: #204f7a; }
.task-item.completed { background: #f8fafc; }
.task-item.completed h4 { color: var(--muted); text-decoration: line-through; }
.task-footer { justify-content: space-between; padding-top: 12px; border-top: 1px solid #edf0f4; margin-top: 14px; }
.task-footer .task-meta { margin-top: 0; }
.icon-btn { border: 1px solid var(--border); padding: 7px 10px; border-radius: 6px; background: white; color: var(--accent); font-size: 0.75rem; font-weight: 500; }
.icon-btn:hover { background: #eef4fa; }
.icon-btn[data-action="delete"] { color: #a13f2f; }
.empty-state { padding: 28px 18px; text-align: center; color: var(--muted); font-size: 0.85rem; background: #f8fafc; border-style: dashed; }
.workspace-footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-top: 24px; color: var(--muted); font-size: 0.7rem; }

@media (max-width: 1000px) {
  .app-shell { padding: 24px; }
  .content-grid { grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr); gap: 16px; }
  .panel { padding: 18px; }
  .workspace-note { display: none; }
  .case-facts { grid-template-columns: 1fr; gap: 12px; }
  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .app-shell {
    padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right))
      max(24px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  }
  .topbar { padding: 20px; flex-direction: column; align-items: flex-start; gap: 20px; margin-bottom: 24px; }
  .topbar > .btn { width: 100%; }
  .brand h1 { font-size: 1.1rem; }
  .brand p { font-size: 0.75rem; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .stat-card { padding: 14px; }
  .stat-card-alert { grid-column: 1 / -1; }
  .mobile-navigation { display: flex; gap: 10px; margin-bottom: 16px; }
  .mobile-navigation a {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: white;
    color: var(--accent);
    font-weight: 600;
    text-align: center;
    text-decoration: none;
  }
  .btn, .filter-pill, .icon-btn { min-width: 44px; min-height: 44px; }
  .panel-actions input, .task-form input, .task-form select,
  .card-form input, .card-form select, .card-form textarea {
    font-size: 16px;
    min-height: 48px;
  }
  .content-grid { grid-template-columns: minmax(0, 1fr); }
  .panel { padding: 16px; }
  .card-form, .task-form, .matter-detail { padding: 14px; }
  .task-form { grid-template-columns: minmax(0, 1fr); }
  .task-title-field, .task-matter-field { grid-column: auto; }
  .form-actions > .btn { flex: 1; }
  .task-toolbar > .filter-pill { flex: 1; }
  .matter-title, .task-item h4 { font-size: 1rem; }
  .matter-meta, .task-meta, .task-footer { font-size: 0.82rem; }
  .task-footer { gap: 12px; }
  .task-footer > .task-meta { gap: 8px; }
  .workspace-footer { line-height: 1.8; }
}

@media (max-width: 420px) {
  .brand { gap: 10px; }
  .brand-mark { width: 40px; height: 40px; }
  .workspace-heading h2 { font-size: 1.3rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}