/* ============================================================
   Lifeguard Tracking System
   Visual direction: "lane lines and deck tile"

   The reference points are physical and old: a painted-steel
   natatorium, a mid-century POOL RULES sign, and a ruled paper
   duty ledger on a clipboard. Franklin-gothic body type, bold
   condensed signage type, typewriter figures, square corners,
   ruled rows, no gradients, no floating cards.

   Guard red is reserved exclusively for urgency -- an expired
   certification or an uncovered shift -- so it never goes soft.
   ============================================================ */

:root {
  /* Water and deck */
  --deep: #0a3742; /* painted steel, natatorium trim */
  --deep-2: #082b34;
  --pool: #0f6b72; /* mid-lane water */
  --pool-dark: #0b5157;
  --shallow: #d3e5e7;
  --shallow-2: #edf4f4;
  --tile: #f2f5f5; /* cool tile, not cream */
  --deck: #ffffff;
  --ledger: #faf9f5; /* ruled-paper tint, zebra rows only */

  /* Ink */
  --ink: #14262b;
  --muted: #56696e;
  --faint: #86989c;
  --line: #d9e1e2;
  --line-strong: #a9babd;
  --rule: #7d9296; /* heavy rule under table heads */

  /* Signal -- these three colours carry meaning, nothing else does */
  --rescue: #b3202f; /* wrong right now */
  --rescue-bg: #fbeced;
  --sun: #9a6708; /* wrong soon */
  --sun-bg: #fbf3e2;
  --go: #10645a; /* covered, current, compliant */
  --go-bg: #e4f0ed;

  --radius: 2px;
  --radius-lg: 3px;
  --shadow-pop: 0 10px 30px rgba(10, 55, 66, 0.22);

  --font-display: "Barlow Condensed", "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Libre Franklin", "Franklin Gothic Book", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --shell-w: 232px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--tile);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.005em;
  line-height: 1.08;
  margin: 0;
}

h1 {
  font-size: 2.1rem;
}
h2 {
  font-size: 1.45rem;
}
h3 {
  font-size: 1.12rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

a {
  color: var(--pool-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
a:hover {
  color: var(--deep);
}

/* Signage label: small, uppercase, condensed. Every column head,
   eyebrow, and field label in the app uses it, which is what
   holds the pool-sign character together. */
.label {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.79rem;
  font-weight: 600;
  color: var(--muted);
}

/* Anything countable -- clock times, hours, shift totals -- is set
   in typewriter figures with tabular spacing so columns align. */
.num,
time,
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.9em;
}

/* --- Lane line -------------------------------------------------
   The signature rule of the interface, drawn as the segmented
   pattern of a floating lane rope. Separates sections, and in the
   schedule bounds each tag's lane. */
.lane-line {
  height: 5px;
  border: 0;
  margin: 0;
  background-image: repeating-linear-gradient(
    90deg,
    var(--line-strong) 0 13px,
    var(--shallow) 13px 21px
  );
}

/* ============================================================
   App shell
   ============================================================ */

.shell {
  display: grid;
  grid-template-columns: var(--shell-w) 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--deep);
  color: #c5dade;
  padding: 1.15rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  border-right: 1px solid var(--deep-2);
}

.brand {
  display: block;
  padding: 0 1.15rem 0.9rem;
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid #16505c;
}
.brand-mark {
  display: block;
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: 1;
}
.brand-sub {
  display: block;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.62rem;
  color: #6ea3ac;
  margin-top: 0.25rem;
}

.facility-switch {
  padding: 0 1.15rem;
}
.facility-switch select {
  width: 100%;
  background: var(--deep-2);
  color: #fff;
  border: 1px solid #17505c;
  border-radius: var(--radius);
  padding: 0.42rem 0.5rem;
  font-family: var(--font-body);
  font-size: 0.86rem;
}

.nav-group {
  display: flex;
  flex-direction: column;
}
.nav-group .label {
  color: #6ea3ac;
  padding: 0 1.15rem 0.3rem;
  font-size: 0.72rem;
}
.nav-link {
  display: block;
  padding: 0.42rem 1.15rem;
  color: #c5dade;
  text-decoration: none;
  border-left: 3px solid transparent;
  font-size: 0.93rem;
}
.nav-link:hover {
  background: var(--deep-2);
  color: #fff;
}
.nav-link.is-active {
  background: var(--deep-2);
  color: #fff;
  border-left-color: var(--pool);
  font-weight: 600;
}

.sidebar-foot {
  margin-top: auto;
  padding: 0 1.15rem;
  font-size: 0.83rem;
  color: #85aeb5;
  border-top: 1px solid #16505c;
  padding-top: 0.9rem;
}

.main {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.6rem;
  background: var(--deck);
  border-bottom: 2px solid var(--rule);
}
.topbar .eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--muted);
}

.content {
  padding: 1.4rem 1.6rem 4rem;
  max-width: 1500px;
  width: 100%;
}

.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-bottom: 0.7rem;
  border-bottom: 2px solid var(--rule);
  margin-bottom: 1.2rem;
}
.page-head p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.93rem;
}

@media (max-width: 860px) {
  .shell {
    grid-template-columns: 1fr;
    /* Header band hugs its content; the page body takes the rest. Without
       this the stretched auto row leaves a tall slab of empty navy. */
    grid-template-rows: auto 1fr;
  }
  .sidebar {
    padding: 0.8rem 0 0;
    gap: 0.7rem;
    /* Grid items default to min-width:auto, which lets the scrolling nav
       rows push the whole page wider than the screen. */
    min-width: 0;
  }
  .brand {
    border-bottom: 0;
    padding-bottom: 0.5rem;
  }
  .sidebar .nav-group .label,
  .sidebar-foot {
    display: none;
  }
  .nav-group {
    flex-direction: row;
    overflow-x: auto;
    gap: 0;
    padding: 0 0.85rem;
    scrollbar-width: none;
    border-top: 1px solid #16505c;
  }
  .nav-group::-webkit-scrollbar {
    display: none;
  }
  .nav-link {
    border-left: 0;
    border-bottom: 3px solid transparent;
    padding: 0.5rem 0.7rem;
    white-space: nowrap;
  }
  .nav-link.is-active {
    border-left: 0;
    border-bottom-color: var(--pool);
  }
  .brand,
  .facility-switch {
    padding-left: 0.85rem;
    padding-right: 0.85rem;
  }
  .content,
  .topbar {
    padding-left: 0.85rem;
    padding-right: 0.85rem;
  }
  h1 {
    font-size: 1.7rem;
  }
}

/* ============================================================
   Surfaces -- panels are ruled boxes, not floating cards
   ============================================================ */

.card {
  background: var(--deck);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 1rem 1.1rem;
}
.card + .card {
  margin-top: 1rem;
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-bottom: 0.5rem;
  margin-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}
.card-head h2,
.card-head h3 {
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.grid {
  display: grid;
  gap: 1rem;
}
.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}
.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}
.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.row-tight {
  gap: 0.35rem;
}
.push-right {
  margin-left: auto;
}

/* Readout: one number that matters, ruled off like a gauge panel. */
.readout {
  background: var(--deck);
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--pool);
  border-radius: var(--radius);
  padding: 0.8rem 0.95rem;
}
.readout-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.85rem;
  font-weight: 500;
  line-height: 1;
  color: var(--ink);
}
.readout-label {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.76rem;
  color: var(--muted);
  margin-top: 0.4rem;
}
.readout-note {
  font-size: 0.81rem;
  color: var(--faint);
  margin-top: 0.1rem;
}
.readout.is-urgent {
  border-left-color: var(--rescue);
}
.readout.is-urgent .readout-value {
  color: var(--rescue);
}
.readout.is-warn {
  border-left-color: var(--sun);
}
.readout.is-warn .readout-value {
  color: var(--sun);
}
.readout.is-good {
  border-left-color: var(--go);
}

/* ============================================================
   Controls -- stamped, square, signage-lettered
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.34rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: var(--deck);
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.1s linear, border-color 0.1s linear;
}
.btn:hover {
  background: var(--shallow-2);
  border-color: var(--pool);
  color: var(--ink);
}
.btn:disabled,
.btn.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn-primary {
  background: var(--pool);
  border-color: var(--pool-dark);
  color: #fff;
}
.btn-primary:hover {
  background: var(--pool-dark);
  border-color: var(--deep);
  color: #fff;
}
.btn-danger {
  background: var(--deck);
  border-color: var(--rescue);
  color: var(--rescue);
}
.btn-danger:hover {
  background: var(--rescue-bg);
  color: var(--rescue);
}
.btn-sm {
  font-size: 0.82rem;
  padding: 0.2rem 0.5rem;
  letter-spacing: 0.06em;
}
.btn-ghost {
  border-color: transparent;
  background: transparent;
}
.btn-ghost:hover {
  background: var(--shallow-2);
  border-color: transparent;
}

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--pool);
  outline-offset: 2px;
}

/* Forms -- ruled, label above, like a paper intake form */
.field {
  display: flex;
  flex-direction: column;
  gap: 0.22rem;
  margin-bottom: 0.85rem;
}
.field > label {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--muted);
}
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="search"],
select,
textarea {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--ink);
  background: var(--deck);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.4rem 0.5rem;
  width: 100%;
}
input[type="date"],
input[type="time"],
input[type="number"] {
  font-family: var(--font-mono);
}
input:focus,
select:focus,
textarea:focus {
  border-color: var(--pool);
  outline: 2px solid rgba(15, 107, 114, 0.22);
}
.help {
  font-size: 0.8rem;
  color: var(--faint);
}
.errorlist {
  list-style: none;
  margin: 0.3rem 0 0;
  padding: 0;
  color: var(--rescue);
  font-size: 0.85rem;
}
fieldset {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin: 0 0 1rem;
}
legend {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.79rem;
  font-weight: 600;
  color: var(--muted);
  padding: 0 0.35rem;
}

/* ============================================================
   Tags, badges, notices
   ============================================================ */

/* Shift tag chip. Colour comes from the tag record, so a tag a
   manager invents looks native without a code change. */
.tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 0.08rem 0.38rem;
  border-radius: 2px;
  background: var(--tag-color, var(--muted));
  color: #fff;
  white-space: nowrap;
}
.tag-outline {
  background: transparent;
  color: var(--tag-color, var(--muted));
  border: 1px solid currentColor;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  font-size: 0.77rem;
  font-weight: 600;
  padding: 0.08rem 0.42rem;
  border-radius: 2px;
  background: var(--shallow);
  color: var(--deep);
  white-space: nowrap;
}
.badge-danger {
  background: var(--rescue-bg);
  color: var(--rescue);
}
.badge-warn {
  background: var(--sun-bg);
  color: var(--sun);
}
.badge-good {
  background: var(--go-bg);
  color: var(--go);
}
.badge-muted {
  background: var(--tile);
  color: var(--muted);
  border: 1px solid var(--line);
}

.alert {
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--pool);
  border-radius: var(--radius);
  padding: 0.6rem 0.8rem;
  background: var(--shallow-2);
  font-size: 0.92rem;
  margin-bottom: 0.7rem;
}
.alert-error {
  border-left-color: var(--rescue);
  background: var(--rescue-bg);
  border-color: #e8c2c6;
}
.alert-warning {
  border-left-color: var(--sun);
  background: var(--sun-bg);
  border-color: #e6d3a8;
}
.alert-success {
  border-left-color: var(--go);
  background: var(--go-bg);
  border-color: #b9d8d1;
}

.messages {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}

/* ============================================================
   Tables -- ruled duty ledger
   ============================================================ */

.table-wrap {
  overflow-x: auto;
}
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
table.data th {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  padding: 0.35rem 0.6rem;
  border-bottom: 2px solid var(--rule);
  white-space: nowrap;
}
table.data td {
  padding: 0.44rem 0.6rem;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
table.data tbody tr:nth-child(even) {
  background: var(--ledger);
}
table.data tbody tr:hover {
  background: var(--shallow-2);
}
table.data td.num,
table.data th.num {
  text-align: right;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}
table.data tfoot td {
  font-weight: 600;
  border-top: 2px solid var(--rule);
  border-bottom: 0;
  background: var(--deck);
}

.empty {
  text-align: center;
  padding: 2.4rem 1rem;
  color: var(--muted);
}
.empty h3 {
  color: var(--ink);
  margin-bottom: 0.3rem;
}

/* ============================================================
   The week grid -- lanes

   Shifts are grouped into lanes by tag and time, the way a pool is
   divided into lanes by ropes. A slot nobody is on renders as a
   visible gap in its lane, so a coverage hole is something you see
   rather than something you have to count.
   ============================================================ */

.week-grid {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--deck);
  overflow-x: auto;
}

/* Seven days plus a label column have to fit without horizontal scrolling on
   a laptop, otherwise Sunday quietly disappears. */
.week-head,
.lane {
  display: grid;
  grid-template-columns: 122px repeat(7, minmax(88px, 1fr));
  min-width: 738px;
}

/* The grid takes the full width until there is genuinely room for the
   assignment panel beside it. */
.week-layout {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}
@media (min-width: 1360px) {
  .week-layout {
    grid-template-columns: minmax(0, 1fr) 296px;
  }
}

.week-head {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--deck);
  border-bottom: 2px solid var(--rule);
}
.week-head > div {
  padding: 0.45rem 0.6rem;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink);
  border-left: 1px solid var(--line);
}
.week-head > div:first-child {
  border-left: 0;
}
.week-head .day-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0;
  color: var(--muted);
  font-weight: 400;
}
.week-head .is-today {
  color: var(--pool);
}
.week-head .is-today .day-num {
  color: var(--pool);
  font-weight: 600;
}

/* The rope between lanes. */
.lane + .lane {
  border-top: 5px solid transparent;
  background-image: repeating-linear-gradient(
    90deg,
    var(--line-strong) 0 13px,
    var(--shallow) 13px 21px
  );
  background-size: 100% 5px;
  background-repeat: no-repeat;
  background-position: top left;
}

.lane-head {
  padding: 0.5rem 0.6rem;
  border-left: 4px solid var(--lane-color, var(--muted));
  background: var(--tile);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.lane-time {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.lane-cell {
  border-left: 1px solid var(--line);
  padding: 0.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-height: 54px;
}
.lane-cell.is-today {
  background: var(--shallow-2);
}

/* One person-slot. */
.slot {
  display: block;
  width: 100%;
  text-align: left;
  font-family: var(--font-body);
  font-size: 0.84rem;
  line-height: 1.25;
  padding: 0.3rem 0.4rem;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--slot-color, var(--pool));
  border-radius: 2px;
  background: var(--deck);
  color: var(--ink);
  cursor: pointer;
}
.slot:hover {
  background: var(--shallow-2);
  border-color: var(--pool);
}
.slot-name {
  display: block;
  font-weight: 500;
}
.slot-meta {
  display: block;
  font-size: 0.74rem;
  color: var(--faint);
}

/* A gap in the lane: nobody is on this slot. */
.slot.is-open {
  border: 1px dashed var(--line-strong);
  border-left: 3px dashed var(--sun);
  background: repeating-linear-gradient(
    135deg,
    transparent 0 6px,
    rgba(154, 103, 8, 0.06) 6px 12px
  );
  color: var(--sun);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  font-size: 0.8rem;
}
.slot.is-open:hover {
  border-color: var(--sun);
  background: var(--sun-bg);
}

.slot.has-error {
  border-color: var(--rescue);
  border-left-color: var(--rescue);
  background: var(--rescue-bg);
}
.slot.has-warning {
  border-left-color: var(--sun);
}
.slot-flag {
  display: block;
  font-size: 0.72rem;
  color: var(--rescue);
  margin-top: 0.1rem;
}

.week-empty {
  grid-column: 1 / -1;
  padding: 2rem;
  text-align: center;
  color: var(--muted);
}

/* Assignment picker, shown beside the grid. */
.picker {
  position: sticky;
  top: 1rem;
}
.picker-list {
  max-height: 460px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.candidate {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  width: 100%;
  text-align: left;
  padding: 0.4rem 0.55rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: var(--deck);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--ink);
}
.candidate:hover {
  background: var(--shallow-2);
}
.candidate:last-child {
  border-bottom: 0;
}
.candidate.is-blocked {
  background: var(--tile);
  color: var(--muted);
}
.candidate-hours {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--faint);
  white-space: nowrap;
}
.candidate-reason {
  display: block;
  font-size: 0.75rem;
  color: var(--rescue);
}

@media (max-width: 860px) {
  .week-head,
  .lane {
    grid-template-columns: 104px repeat(7, minmax(84px, 1fr));
  }
  .lane-head {
    padding: 0.4rem 0.35rem;
  }
}

/* ============================================================
   Motion -- sparing; this is a tool, not a showcase
   ============================================================ */

.htmx-swapping {
  opacity: 0;
  transition: opacity 0.09s linear;
}
.htmx-request .btn {
  opacity: 0.6;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   Charts

   Every mark is direct-labelled with its tag code, because managers can
   recolour tags and invent their own -- colour reinforces identity here,
   it never carries it alone. Bars are separated by a surface gap rather
   than a border so adjacent fills never blend.
   ============================================================ */

.chart {
  display: flex;
  flex-direction: column;
  gap: 2px; /* surface gap between bars */
}

.chart-row {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr) 78px;
  align-items: center;
  gap: 0.5rem;
  padding: 1px 0;
}
/* Wider labels, for charts whose categories are sentences rather than codes. */
.chart-wide .chart-row {
  grid-template-columns: minmax(0, 1fr) 40% 62px;
}
.chart-wide .chart-label span:last-child {
  white-space: normal;
}

.chart-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--ink);
  min-width: 0;
}
.chart-label span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.chart-track {
  display: block;
  background: var(--tile);
  border-radius: 2px;
  height: 18px;
  overflow: hidden;
}
.chart-bar {
  /* Must be block: a span defaults to inline, which silently ignores width
     and collapses every bar to nothing. */
  display: block;
  height: 100%;
  background: var(--bar-color, var(--pool));
  /* Rounded only at the data end, anchored to the baseline. */
  border-radius: 0 4px 4px 0;
  min-width: 2px;
  transition: filter 0.1s linear;
}
.chart-row:hover .chart-bar {
  filter: brightness(1.08);
}
.chart-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.82rem;
  text-align: right;
  color: var(--muted);
}

/* Column chart, for change over time. Single series, so no legend. */
.chart-columns {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 130px;
  padding-top: 0.4rem;
  border-bottom: 2px solid var(--rule);
}
.chart-column {
  flex: 1 1 0;
  /* Capped so a period with one or two weeks in it does not render as a
     single slab the width of the card. */
  max-width: 84px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: stretch;
  height: 100%;
}
.chart-column-bar {
  background: var(--pool);
  border-radius: 4px 4px 0 0; /* rounded at the data end only */
  min-height: 2px;
}
.chart-column:hover .chart-column-bar {
  background: var(--deep);
}
.chart-axis {
  display: flex;
  gap: 2px;
  margin-top: 0.3rem;
}
.chart-axis > span {
  flex: 1 1 0;
  max-width: 84px; /* keep the labels under their columns */
  min-width: 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--faint);
  overflow: hidden;
  white-space: nowrap;
}

.chart-empty {
  padding: 1.5rem 0;
  text-align: center;
  color: var(--faint);
  font-size: 0.9rem;
}

/* A stacked proportion bar, for "how shifts got filled". */
.chart-stack {
  display: flex;
  gap: 2px;
  height: 18px;
  margin-bottom: 0.5rem;
}
.chart-stack > span {
  background: var(--seg-color, var(--pool));
  border-radius: 2px;
}
.chart-key {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.82rem;
}
.chart-key-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--muted);
}
.chart-key-swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--seg-color, var(--pool));
  flex: none;
}

@media (max-width: 620px) {
  .chart-row {
    grid-template-columns: 88px minmax(0, 1fr) 62px;
  }
}

/* ============================================================
   Utilities -- last in the file on purpose. These have to beat
   component rules like .btn that also set `display`, and source
   order is what decides that between equal-specificity selectors.
   ============================================================ */

.mobile-only {
  display: none !important;
}

@media (max-width: 860px) {
  .mobile-only {
    display: inline-flex !important;
  }
  .desktop-only {
    display: none !important;
  }
}

@media print {
  .sidebar,
  .topbar,
  .no-print {
    display: none !important;
  }
  body {
    background: #fff;
  }
  .shell {
    grid-template-columns: 1fr;
  }
  .content {
    padding: 0;
  }
  .card {
    border: 0;
    padding: 0;
  }
  table.data tbody tr:nth-child(even) {
    background: #fff;
  }
}