:root {
  --page-bg: #f6f8fb;
  --card-bg: #ffffff;
  --text-main: #172033;
  --text-muted: #64748b;
  --border-color: #dde3ee;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-bg: #eef2f7;
  --secondary-text: #253044;
  --danger: #dc2626;
  --danger-dark: #b91c1c;
  --success-bg: #ecfdf3;
  --success-text: #166534;
  --error-bg: #fef2f2;
  --error-text: #b91c1c;
  --warning-bg: #fef3c7;
  --warning-text: #92400e;
  --shadow: 0 12px 32px rgba(25, 35, 60, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--page-bg);
  color: var(--text-main);
}

button,
input,
select {
  font: inherit;
}

.page-shell {
  width: min(100% - 32px, 1180px);
  margin: 0 auto;
  padding: 28px 0 40px;
}

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.login-card {
  width: min(100%, 460px);
  padding: 28px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

.login-form {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 16px;
  padding: 26px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

.eyebrow,
.section-label {
  margin: 0 0 6px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.15rem;
}

h3 {
  font-size: 1rem;
}

.hero-subtitle,
.helper-text,
.form-note {
  color: var(--text-muted);
}

.hero-subtitle {
  max-width: 720px;
  margin: 10px 0 0;
  font-size: 1rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.tech-badge {
  flex: 0 0 auto;
  padding: 8px 12px;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e40af;
  font-size: 0.9rem;
  font-weight: 700;
}

.top-nav {
  display: flex;
  gap: 10px;
  margin-bottom: 18px;
}

.nav-button {
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: white;
  color: var(--secondary-text);
  cursor: pointer;
  font-weight: 700;
}

.nav-button.active,
.nav-button:hover {
  border-color: var(--primary);
  background: #eff6ff;
  color: #1d4ed8;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}

.stat-card,
.card {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

.stat-card {
  padding: 18px;
}

.stat-label {
  display: block;
  margin-bottom: 5px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 700;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(420px, 1.1fr);
  gap: 18px;
  margin-bottom: 18px;
}

.card {
  margin-bottom: 18px;
  padding: 22px;
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.helper-text {
  margin: -6px 0 18px;
  line-height: 1.5;
}

.form-grid,
.search-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.inline-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 12px;
}

.wide {
  grid-column: 1 / -1;
}

label {
  display: block;
  color: var(--secondary-text);
  font-size: 0.9rem;
  font-weight: 700;
}

input,
select {
  width: 100%;
  margin-top: 7px;
  padding: 11px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: #ffffff;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

input:disabled,
input[readonly],
button:disabled {
  background: #f1f5f9;
  color: var(--text-muted);
  cursor: not-allowed;
}

.form-actions,
.bulk-actions {
  display: flex;
  align-items: end;
  flex-wrap: wrap;
  gap: 12px;
}

.form-actions {
  margin-top: 2px;
}

.bulk-actions {
  margin-bottom: 16px;
}

.bulk-actions label {
  min-width: 190px;
}

.button {
  min-height: 42px;
  padding: 10px 15px;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 700;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.primary-button {
  border-color: var(--primary);
  background: var(--primary);
  color: white;
}

.primary-button:hover:not(:disabled) {
  background: var(--primary-dark);
}

.secondary-button {
  border-color: var(--border-color);
  background: var(--secondary-bg);
  color: var(--secondary-text);
}

.secondary-button:hover:not(:disabled) {
  border-color: #c5cedd;
  background: #e2e8f0;
}

.danger-button {
  border-color: var(--danger);
  background: var(--danger);
  color: white;
}

.danger-button:hover:not(:disabled) {
  background: var(--danger-dark);
}

.message {
  display: none;
  margin-bottom: 18px;
  padding: 13px 15px;
  border-radius: 8px;
  font-weight: 700;
}

.message.success {
  display: block;
  border: 1px solid #bbf7d0;
  background: var(--success-bg);
  color: var(--success-text);
}

.message.error {
  display: block;
  border: 1px solid #fecaca;
  background: var(--error-bg);
  color: var(--error-text);
}

.table-wrap,
.results-area {
  width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
}

th,
td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0;
  text-transform: uppercase;
}

tr:last-child td {
  border-bottom: 0;
}

.roll-pill {
  display: inline-block;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--warning-bg);
  color: var(--warning-text);
  font-weight: 700;
}

.row-actions {
  display: flex;
  gap: 8px;
  white-space: nowrap;
}

.small-button {
  min-height: 34px;
  padding: 7px 10px;
  font-size: 0.86rem;
}

.empty-state {
  padding: 18px;
  border: 1px dashed var(--border-color);
  border-radius: 8px;
  background: #fbfdff;
  color: var(--text-muted);
  text-align: center;
}

.desk-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.desk {
  min-height: 118px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  text-align: left;
}

.desk span,
.desk small {
  color: var(--text-muted);
  font-weight: 700;
}

.desk strong {
  font-size: 1rem;
}

.occupied-desk {
  background: #eff6ff;
  color: var(--text-main);
  cursor: pointer;
}

.occupied-desk:hover {
  border-color: var(--primary);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.14);
}

.vacant-desk {
  background: #f8fafc;
  color: var(--text-muted);
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.profile-grid div {
  padding: 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #fbfdff;
}

.profile-grid span {
  display: block;
  margin-bottom: 4px;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.wide-profile {
  grid-column: span 3;
}

.attendance-percent {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--success-bg);
  color: var(--success-text);
}

.calendar-wrap {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.month-card {
  padding: 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #fbfdff;
}

.month-card h3 {
  margin-bottom: 10px;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 5px;
}

.weekday-label {
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-align: center;
}

.calendar-empty {
  min-height: 42px;
}

.calendar-day {
  min-height: 42px;
  padding: 5px 3px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: white;
  color: var(--text-main);
  cursor: pointer;
}

.calendar-day span,
.calendar-day small {
  display: block;
}

.calendar-day small {
  min-height: 12px;
  margin-top: 1px;
  font-size: 0.62rem;
  font-weight: 700;
}

.present-day {
  border-color: #86efac;
  background: #dcfce7;
  color: #166534;
}

.leave-day {
  border-color: #fecaca;
  background: #fee2e2;
  color: #991b1b;
}

.not-marked-day {
  background: #ffffff;
}

.weekend-day,
.future-day {
  background: #e5e7eb;
  color: #6b7280;
}

.calendar-day:disabled {
  border-color: #d1d5db;
  background: #e5e7eb;
  color: #6b7280;
}

.hidden {
  display: none;
}

@media (max-width: 1000px) {
  .dashboard-grid,
  .calendar-wrap {
    grid-template-columns: 1fr;
  }

  .desk-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .hero,
  .card-header {
    flex-direction: column;
  }

  .stats-grid,
  .form-grid,
  .search-grid,
  .inline-form,
  .profile-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .top-nav {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .wide-profile {
    grid-column: span 1;
  }
}

@media (max-width: 560px) {
  .page-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 14px;
  }

  .hero,
  .card,
  .login-card {
    padding: 16px;
  }

  h1 {
    font-size: 1.55rem;
  }

  .button,
  .nav-button {
    width: 100%;
  }

  .row-actions {
    flex-direction: column;
  }

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