:root {
  --bg: #120720;
  --bg-2: #081b24;
  --ink: #f6efff;
  --muted: #b8f9ea;
  --card: rgba(24, 24, 49, 0.84);
  --line: #3e8d84;
  --accent: #ff4fa2;
  --accent-2: #44f0d8;
  --accent-3: #b4ff3b;
  --danger: #b91c1c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", Tahoma, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 15%, #513082 0%, transparent 35%),
    radial-gradient(circle at 85% 20%, #20bf95 0%, transparent 30%),
    radial-gradient(circle at 70% 80%, #c31f8c 0%, transparent 25%),
    radial-gradient(circle at 30% 78%, #a6ff3b 0%, transparent 22%),
    linear-gradient(135deg, var(--bg), var(--bg-2));
  min-height: 100vh;
}

.app {
  width: min(1200px, 94%);
  margin: 2rem auto 3rem;
  display: grid;
  gap: 1rem;
}

.header h1 {
  margin: 0;
  letter-spacing: 0.02em;
}

.header p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.top-nav {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.nav-btn {
  border: 1px solid var(--line);
  background: rgba(11, 28, 31, 0.62);
  color: var(--ink);
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.nav-btn.active {
  background: var(--accent-2);
  color: #083132;
  font-weight: 700;
}

.page-section {
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(6px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.employee-grid {
  align-items: end;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.92rem;
}

input,
select,
button {
  font: inherit;
}

input,
select,
textarea {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.55rem 0.65rem;
  background: rgba(21, 11, 36, 0.82);
  color: var(--ink);
}

textarea {
  min-height: 72px;
  resize: vertical;
}

button {
  border: none;
  border-radius: 999px;
  padding: 0.6rem 0.9rem;
  color: white;
  background: var(--accent);
  cursor: pointer;
}

button:hover {
  filter: brightness(0.94);
}

button,
.nav-btn {
  opacity: 0.14;
  transition: opacity 180ms ease;
}

body.show-buttons button,
body.show-buttons .nav-btn,
body.buttons-pinned button,
body.buttons-pinned .nav-btn,
button:hover,
button:focus-visible,
.nav-btn:hover,
.nav-btn:focus-visible {
  opacity: 1;
}

.secondary {
  background: #1bbfa2;
  color: #092223;
}

.danger {
  background: var(--danger);
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.action-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 0.6rem 0.4rem;
  font-size: 0.92rem;
  white-space: nowrap;
}

td .action-row {
  gap: 0.4rem;
}

.small {
  padding: 0.3rem 0.55rem;
  font-size: 0.82rem;
}

.overall-total {
  color: var(--accent-3);
  font-weight: 700;
}

.period-label {
  margin-top: 0;
  color: var(--muted);
}

.totals-list {
  list-style: none;
  padding: 0;
  margin: 0.35rem 0 0;
  display: grid;
  gap: 0.35rem;
}

.totals-list li {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.45rem 0.6rem;
  background: rgba(15, 8, 27, 0.54);
}

.employee-list,
.client-list {
  list-style: none;
  padding: 0;
  margin: 0.85rem 0 0;
  display: grid;
  gap: 0.4rem;
}

.employee-list li,
.client-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(11, 7, 21, 0.46);
  padding: 0.55rem;
}

.client-card h3,
.client-card h4,
.client-card p {
  margin: 0.3rem 0;
}

.invoice-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.2rem;
}

.paystub-controls {
  margin-top: 0.8rem;
  display: grid;
  gap: 0.6rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: end;
}

.invoice-summary {
  margin-top: 0.8rem;
  display: flex;
  gap: 0.7rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.paystub-view {
  margin-top: 0.8rem;
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 0.75rem;
  background: rgba(9, 17, 26, 0.5);
}

.paystub-print-area h3,
.paystub-print-area p {
  margin: 0.35rem 0;
}

#invoice-preview-print h3,
#invoice-preview-print p {
  margin: 0.35rem 0;
}

.small-note {
  font-size: 0.82rem;
  color: var(--muted);
}

.calendar-grid {
  margin-top: 0.7rem;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.35rem;
}

.calendar-head {
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
  padding: 0.35rem;
}

.calendar-cell {
  border: 1px solid var(--line);
  background: rgba(11, 7, 21, 0.46);
  border-radius: 8px;
  min-height: 72px;
  padding: 0.4rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  color: var(--ink);
}

.calendar-cell .day-num {
  font-weight: 700;
}

.calendar-cell .day-count {
  font-size: 0.78rem;
  color: var(--muted);
}

.calendar-cell.selected {
  outline: 2px solid var(--accent-3);
}

.calendar-cell.today {
  border-color: var(--accent-2);
}

.empty-cell {
  background: transparent;
  border: none;
}

.muted-inline {
  color: var(--muted);
  font-size: 0.82rem;
}

input[readonly] {
  background: rgba(17, 41, 50, 0.75);
  color: var(--accent-3);
  font-weight: 700;
}

.empty {
  color: var(--muted);
}

.error {
  color: var(--danger);
  margin: 0.7rem 0 0;
}

.hidden {
  display: none;
}

@media (max-width: 720px) {
  .app {
    width: min(1200px, 96%);
    margin-top: 1rem;
  }

  .section-title {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media print {
  body * {
    visibility: hidden;
    background: #fff !important;
    color: #111 !important;
  }

  #paystub-view,
  #paystub-view * {
    visibility: visible;
  }

  #paystub-view {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    border: none;
    padding: 0;
    margin: 0;
  }
}