:root {
  --ink: #102a43;
  --muted: #627d98;
  --surface: #ffffff;
  --surface-soft: #f0f4f8;
  --border: #d9e2ec;
  --brand: #1261a0;
  --brand-dark: #0b4778;
  --success: #16825d;
  --danger: #c44536;
  --holiday: #fff1bd;
  --vacation: #dff4f1;
  --weekend: #edf1f5;
}

html {
  font-size: 16px;
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  color: var(--ink);
  background: #f7f9fc;
}

main {
  flex: 1;
}

a {
  color: var(--brand);
}

.app-navbar {
  padding-top: max(.65rem, env(safe-area-inset-top));
  background: var(--ink);
  box-shadow: 0 5px 18px rgb(16 42 67 / 14%);
}

.app-footer {
  color: var(--muted);
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding-bottom: max(1rem, env(safe-area-inset-bottom));
}

.auth-shell {
  min-height: min(680px, calc(100vh - 12rem));
  display: grid;
  place-items: center;
}

.auth-card,
.content-card,
.hero-panel,
.bulk-actions,
.empty-state,
.clock-panel,
.metric-card,
.mini-month {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: 0 16px 40px rgb(16 42 67 / 8%);
}

.auth-card {
  width: min(100%, 460px);
  padding: clamp(1.5rem, 5vw, 2.5rem);
}

.auth-heading {
  margin-bottom: 1.75rem;
}

.auth-heading h1,
.page-heading h1,
.hero-panel h1,
.content-card h1 {
  margin: .25rem 0 .5rem;
  font-weight: 750;
  letter-spacing: -.025em;
}

.auth-heading p,
.page-heading p,
.hero-panel p,
.device-card p,
.bulk-actions p {
  color: var(--muted);
}

.eyebrow {
  color: var(--brand);
  font-size: .76rem;
  font-weight: 750;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.form-control {
  border-color: #bcccdc;
}

.form-control:focus,
.form-check-input:focus,
.btn:focus-visible {
  border-color: var(--brand);
  box-shadow: 0 0 0 .22rem rgb(18 97 160 / 20%);
}

.btn-primary {
  background: var(--brand);
  border-color: var(--brand);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
}

.device-check {
  padding: .85rem .85rem .85rem 2.25rem;
  background: var(--surface-soft);
  border-radius: .65rem;
}

.security-note {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  color: var(--muted);
  font-size: .88rem;
  border-top: 1px solid var(--border);
}

.page-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 1.5rem;
}

.device-list {
  display: grid;
  gap: 1rem;
}

.device-card {
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: .85rem;
}

.device-current {
  border-color: #76b5df;
  box-shadow: 0 0 0 3px rgb(18 97 160 / 8%);
}

.device-card-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.device-card h2 {
  margin: 0;
  font-size: 1.15rem;
}

.device-details {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
}

.device-details div {
  min-width: 0;
}

.device-details dt {
  color: var(--muted);
  font-size: .78rem;
  font-weight: 650;
  text-transform: uppercase;
}

.device-details dd {
  margin: .2rem 0 0;
  overflow-wrap: anywhere;
}

.bulk-actions,
.content-card,
.hero-panel,
.empty-state {
  padding: clamp(1.5rem, 4vw, 2.5rem);
  margin-top: 1.5rem;
}

.bulk-actions h2,
.content-card h2 {
  font-size: 1.25rem;
}

.hero-panel {
  max-width: 760px;
}

.clock-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: linear-gradient(135deg, #fff 45%, #e7f2fb);
}

.clock-panel h1 {
  margin: .3rem 0;
  font-weight: 780;
  letter-spacing: -.03em;
}

.clock-now {
  margin: 0;
  color: var(--muted);
  text-transform: capitalize;
}

.clock-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(150px, 1fr));
  gap: .75rem;
}

.clock-actions form,
.clock-actions button {
  width: 100%;
}

.clock-actions button {
  min-height: 5.2rem;
  display: grid;
  place-content: center;
  font-size: 1.15rem;
  font-weight: 750;
}

.action-hint {
  display: block;
  margin-top: .2rem;
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .08em;
  opacity: .8;
  text-transform: uppercase;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.metric-card {
  padding: 1.15rem 1.25rem;
}

.metric-card span,
.metric-card small {
  display: block;
  color: var(--muted);
}

.metric-card span {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.metric-card strong {
  display: block;
  margin: .3rem 0 .15rem;
  font-size: clamp(1.55rem, 4vw, 2.15rem);
  letter-spacing: -.04em;
}

.metric-card small {
  font-size: .82rem;
}

.compact-metrics {
  grid-template-columns: repeat(auto-fit, minmax(185px, 1fr));
}

.section-heading,
.responsive-heading,
.special-day-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.section-heading {
  margin-bottom: 1.25rem;
}

.section-heading h2 {
  margin: .2rem 0 0;
}

.punch-timeline {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.punch-timeline-item {
  display: grid;
  grid-template-columns: auto auto auto;
  align-items: center;
  gap: .55rem;
  padding: .7rem .9rem;
  color: var(--ink);
  text-decoration: none;
  background: var(--surface-soft);
  border-radius: .7rem;
}

.punch-timeline-item:hover {
  background: #e3edf7;
}

.punch-dot {
  width: .65rem;
  height: .65rem;
  border-radius: 50%;
}

.punch-dot.entry {
  background: var(--success);
}

.punch-dot.exit {
  background: var(--danger);
}

.calendar-navigation,
.year-navigation,
.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.calendar-navigation {
  justify-content: center;
  margin: 1.25rem 0;
}

.table-actions {
  justify-content: flex-end;
}

.calendar-scroll {
  width: 100%;
  overflow: visible;
  padding-bottom: .5rem;
}

.month-calendar {
  width: 100%;
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: clamp(.25rem, .7vw, .55rem);
}

.calendar-weekday {
  padding: .45rem;
  color: var(--muted);
  font-size: .76rem;
  font-weight: 750;
  text-align: center;
  text-transform: uppercase;
}

.calendar-day {
  min-height: 175px;
  min-width: 0;
  padding: clamp(.4rem, .8vw, .7rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: .75rem;
}

.calendar-day.today {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgb(18 97 160 / 12%);
}

.calendar-day.weekend,
.mini-day.weekend {
  background: var(--weekend);
}

.calendar-day.holiday,
.mini-day.holiday {
  background: var(--holiday);
}

.calendar-day.vacation,
.mini-day.vacation {
  background: var(--vacation);
}

.calendar-day header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .4rem;
}

.calendar-day header strong {
  font-size: 1.05rem;
}

.calendar-day header span {
  color: var(--muted);
  font-size: .68rem;
}

.calendar-day dl {
  margin: .85rem 0 .65rem;
}

.calendar-day dl div {
  display: flex;
  justify-content: space-between;
  gap: .5rem;
  padding: .12rem 0;
}

.calendar-day dt {
  color: var(--muted);
  font-size: .72rem;
  font-weight: 600;
}

.calendar-day dd {
  margin: 0;
  font-size: .78rem;
  font-weight: 750;
}

.positive {
  color: var(--success);
}

.negative {
  color: var(--danger);
}

.calendar-day-actions {
  display: flex;
  justify-content: space-between;
  gap: .4rem;
  font-size: .7rem;
}

.calendar-warning {
  display: block;
  margin-top: .35rem;
  color: #9b5c00;
  font-size: .68rem;
  font-weight: 700;
}

.form-shell {
  display: grid;
  place-items: start center;
}

.form-card {
  width: min(100%, 620px);
}

.form-card h1 {
  margin-top: .25rem;
}

.empty-inline {
  padding: 2rem;
  text-align: center;
}

.annual-calendar-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.mini-month {
  padding: 1rem;
}

.mini-month h2 {
  margin: 0 0 .75rem;
  font-size: 1rem;
  text-transform: capitalize;
}

.mini-calendar {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: .2rem;
}

.mini-weekday,
.mini-day {
  display: grid;
  place-items: center;
  min-height: 1.65rem;
  font-size: .7rem;
  border-radius: .3rem;
}

button.mini-day {
  width: 100%;
  padding: 0;
  color: var(--ink);
  font-family: inherit;
  border: 1px solid transparent;
  cursor: pointer;
}

button.mini-day:hover,
button.mini-day:focus-visible {
  border-color: var(--brand);
  box-shadow: 0 0 0 2px rgb(18 97 160 / 16%);
  outline: 0;
}

button.mini-day:disabled {
  cursor: wait;
  opacity: .6;
}

.mini-weekday {
  color: var(--muted);
  font-weight: 750;
}

.mini-day.today {
  color: white;
  background: var(--brand);
}

.range-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(145px, 1fr));
  align-items: end;
  gap: 1rem;
}

.calendar-click-controls {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  align-items: center;
  gap: 1rem 2rem;
  margin-top: 1.5rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: 0 16px 40px rgb(16 42 67 / 8%);
}

.calendar-click-controls h2 {
  margin: .2rem 0 .35rem;
  font-size: 1.4rem;
}

.calendar-click-controls p {
  margin: 0;
  color: var(--muted);
}

.calendar-type-selector {
  min-width: 210px;
}

.calendar-type-selector label {
  display: block;
  margin-bottom: .35rem;
  font-size: .78rem;
  font-weight: 700;
}

.calendar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.25rem;
}

.calendar-legend span {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--muted);
  font-size: .78rem;
}

.calendar-legend i {
  width: .85rem;
  height: .85rem;
  border: 1px solid var(--border);
  border-radius: .2rem;
}

.calendar-legend i.holiday {
  background: var(--holiday);
}

.calendar-legend i.vacation {
  background: var(--vacation);
}

.calendar-legend i.weekend {
  background: var(--weekend);
}

.calendar-toggle-status {
  min-height: 1.2rem;
  font-size: .82rem;
  font-weight: 650;
  text-align: right;
}

#calendar-toggle-form {
  display: none;
}

.interval-details {
  margin-top: 1rem;
}

.interval-details summary {
  cursor: pointer;
  font-weight: 700;
}

.interval-details[open] summary {
  margin-bottom: 1.25rem;
}

.range-note {
  grid-column: span 2;
}

.special-day-list {
  display: grid;
  gap: .65rem;
}

.special-day-item {
  padding: .8rem 0;
  border-bottom: 1px solid var(--border);
}

.special-day-item:last-child {
  border-bottom: 0;
}

.special-day-item strong,
.special-day-item small {
  display: inline-block;
  margin-right: .5rem;
}

.special-day-item strong {
  text-transform: capitalize;
}

.daily-target-preview {
  margin: 1rem 0 1.5rem;
  padding: 1.1rem;
  background: var(--surface-soft);
  border-radius: .75rem;
}

.daily-target-preview span,
.daily-target-preview small {
  display: block;
  color: var(--muted);
}

.daily-target-preview strong {
  display: block;
  margin: .2rem 0;
  font-size: 2rem;
}

.empty-state {
  text-align: center;
}

.validation-summary-valid,
.field-validation-valid {
  display: none;
}

@media (max-width: 767.98px) {
  .navbar-nav {
    gap: .6rem;
    padding: .75rem 0;
  }

  .device-card-header {
    align-items: flex-start;
  }

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

  .clock-panel,
  .responsive-heading,
  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }

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

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

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

  .calendar-day {
    min-height: 105px;
    padding: .3rem;
    border-radius: .45rem;
  }

  .calendar-day header {
    align-items: flex-start;
  }

  .calendar-day header span {
    display: none;
  }

  .calendar-day dl {
    margin: .35rem 0 0;
  }

  .calendar-day dl div {
    display: block;
    padding: 0;
    line-height: 1.1;
    text-align: center;
  }

  .calendar-day dt {
    display: none;
  }

  .calendar-day dd {
    font-size: clamp(.55rem, 1.7vw, .7rem);
  }

  .calendar-day dl div:nth-child(1) dd::before {
    content: "R ";
    color: var(--muted);
    font-weight: 500;
  }

  .calendar-day dl div:nth-child(2) dd::before {
    content: "T ";
    color: var(--muted);
    font-weight: 500;
  }

  .calendar-day dl div:nth-child(3) dd::before {
    content: "S ";
    color: var(--muted);
    font-weight: 500;
  }

  .calendar-day-actions,
  .calendar-warning {
    display: none;
  }

  .calendar-click-controls {
    grid-template-columns: 1fr;
  }

  .calendar-toggle-status {
    text-align: left;
  }
}

@media (max-width: 420px) {
  .device-details {
    grid-template-columns: 1fr;
  }

  .clock-actions,
  .metrics-grid,
  .annual-calendar-grid,
  .range-form {
    grid-template-columns: 1fr;
  }

  .range-note {
    grid-column: auto;
  }

  .month-calendar {
    gap: .18rem;
  }

  .calendar-weekday {
    padding: .25rem 0;
    font-size: .62rem;
  }

  .calendar-day {
    min-height: 82px;
    padding: .2rem;
  }

  .calendar-day header strong {
    font-size: .78rem;
  }

  .calendar-day dd {
    font-size: .52rem;
  }
}