:root {
  color-scheme: light;
  --ink: #182230;
  --muted: #667085;
  --paper: #eef2f7;
  --card: #ffffff;
  --line: #d6deea;
  --dark: #172033;
  --blue: #2864d8;
  --green: #168a56;
  --amber: #b96f0d;
  --red: #c43d36;
  --violet: #6d46c6;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, #172033 0 260px, transparent 260px),
    var(--paper);
  color: var(--ink);
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.app {
  width: min(100%, 1240px);
  margin: 0 auto;
  padding: 24px;
}

.masthead {
  display: grid;
  grid-template-columns: minmax(120px, 180px) 1fr auto;
  align-items: end;
  gap: 18px;
  color: #ffffff;
}

.back-link {
  align-self: start;
  color: #cbd5e1;
  font-size: 0.86rem;
  text-decoration: none;
}

.back-link:hover {
  color: #ffffff;
}

.eyebrow {
  margin: 0 0 6px;
  color: #8bd3ff;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 6px;
  font-size: clamp(1.8rem, 3vw, 3rem);
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: 1rem;
  letter-spacing: 0;
}

.subcopy {
  margin-bottom: 0;
  color: #d8e1ee;
}

.session-card {
  min-width: 170px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.session-card span {
  display: block;
  color: #b9c5d4;
  font-size: 0.78rem;
}

.session-card strong {
  display: block;
  margin-top: 3px;
}

.layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.left-rail,
.work-area {
  display: grid;
  align-content: start;
  gap: 16px;
}

.card,
.table-card,
.detail-card,
.stats-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  box-shadow: 0 18px 40px rgba(16, 24, 40, 0.07);
}

.card,
.table-card,
.detail-card {
  padding: 16px;
}

.card-head,
.table-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.card-head span,
.table-head p,
.quiet,
.filter {
  color: var(--muted);
  font-size: 0.86rem;
}

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

.role-switch button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  color: var(--ink);
  font-weight: 800;
}

.role-switch .selected {
  border-color: var(--blue);
  background: var(--blue);
  color: #ffffff;
}

.quiet {
  margin: 12px 0 0;
  line-height: 1.5;
}

.ticket-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.ticket-form label,
.filter {
  display: grid;
  gap: 6px;
}

.ticket-form label {
  color: #344054;
  font-size: 0.84rem;
  font-weight: 700;
}

.ticket-form input,
.ticket-form select,
.ticket-form textarea,
.filter select,
.detail-card select,
.detail-card textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
}

.ticket-form input,
.ticket-form select,
.filter select,
.detail-card select {
  min-height: 40px;
  padding: 8px 10px;
}

.ticket-form textarea,
.detail-card textarea {
  resize: vertical;
  padding: 10px;
  line-height: 1.45;
}

.wide,
.ticket-form .primary,
.ticket-form .form-status {
  grid-column: 1 / -1;
}

.primary,
.secondary {
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  font-weight: 800;
}

.primary {
  background: var(--dark);
  color: #ffffff;
}

.secondary {
  background: #e8eef8;
  color: var(--dark);
}

.form-status {
  min-height: 20px;
  margin: -4px 0 0;
  color: var(--green);
  font-size: 0.84rem;
  font-weight: 800;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.stats-grid article {
  position: relative;
  overflow: hidden;
  min-height: 108px;
  padding: 14px;
}

.stats-grid article::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
}

.stat-open::before {
  background: var(--blue);
}

.stat-progress::before {
  background: var(--amber);
}

.stat-resolved::before {
  background: var(--green);
}

.stat-closed::before {
  background: var(--violet);
}

.stat-critical::before {
  background: var(--red);
}

.stats-grid span {
  color: var(--muted);
  font-size: 0.84rem;
}

.stats-grid strong {
  display: block;
  margin-top: 10px;
  font-size: 2rem;
}

.table-head {
  align-items: center;
}

.table-head p {
  margin: 4px 0 0;
}

.table-controls {
  display: flex;
  align-items: end;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.filter {
  min-width: 150px;
}

.filter input {
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
}

th,
td {
  padding: 12px 10px;
  border-bottom: 1px solid #ecf0f6;
  text-align: left;
  vertical-align: middle;
}

th {
  color: #475467;
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

tr {
  cursor: pointer;
}

tbody tr:hover,
tbody tr.selected {
  background: #f5f8fd;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  white-space: nowrap;
}

.priority-low {
  background: #edf7f1;
  color: var(--green);
}

.priority-medium {
  background: #eef4ff;
  color: var(--blue);
}

.priority-high {
  background: #fff5df;
  color: var(--amber);
}

.priority-critical {
  background: #ffe9e7;
  color: var(--red);
}

.status-open {
  background: #eef4ff;
  color: var(--blue);
}

.status-in-progress {
  background: #fff5df;
  color: var(--amber);
}

.status-resolved {
  background: #edf7f1;
  color: var(--green);
}

.status-closed {
  background: #f0eaff;
  color: var(--violet);
}

.app[data-role="user"] .agent-col {
  display: none;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.detail-main {
  grid-column: 1 / -1;
}

.detail-field {
  padding: 12px;
  border: 1px solid #e7ecf3;
  border-radius: 8px;
  background: #fbfcfe;
}

.detail-field span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.78rem;
}

.agent-tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.agent-tools label {
  display: grid;
  gap: 6px;
  color: #344054;
  font-size: 0.84rem;
  font-weight: 700;
}

.agent-tools .note-box,
.agent-tools .secondary {
  grid-column: 1 / -1;
}

.notes-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.note {
  padding: 10px;
  border-radius: 8px;
  background: #f5f7fb;
  color: #344054;
  font-size: 0.9rem;
}

.note strong,
.note span {
  display: block;
}

.note span {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.78rem;
}

.empty-state {
  min-height: 160px;
  display: grid;
  place-content: center;
  text-align: center;
}

.empty-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin: 0 auto 12px;
  border-radius: 8px;
  background: #eef4ff;
  color: var(--blue);
  font-size: 1.4rem;
  font-weight: 900;
}

.empty-state p {
  margin-bottom: 0;
  color: var(--muted);
}

@media (max-width: 980px) {
  .masthead {
    grid-template-columns: 1fr;
    align-items: start;
  }

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

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

@media (max-width: 640px) {
  .app {
    padding: 16px;
  }

  .ticket-form,
  .detail-grid,
  .agent-tools,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .table-head {
    align-items: stretch;
    flex-direction: column;
  }

  .table-controls {
    justify-content: stretch;
  }

  .filter {
    min-width: 100%;
  }

  table {
    min-width: 540px;
  }

  th:nth-child(3),
  td:nth-child(3) {
    display: none;
  }
}