:root {
  --color-canvas-white: #ffffff;
  --color-paper-mist: #f5f5f5;
  --color-ash: #e5e5e5;
  --color-midnight-ink: #0a0a0a;
  --color-charcoal: #171717;
  --color-graphite: #262626;
  --color-steel: #525252;
  --color-fog: #737373;
  --color-electric-blue: #2563eb;
  --color-deep-sapphire: #1e40af;
  --color-soft-mint: #dcfce7;
  --font-inter: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-satoshi: Satoshi, var(--font-inter);
  --spacing-8: 8px;
  --spacing-16: 16px;
  --spacing-24: 24px;
  --spacing-32: 32px;
  --spacing-64: 64px;
  --radius-buttons: 8px;
  --radius-cards: 12px;
  --radius-full: 9999px;
  --text-truck-number: 80px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--color-paper-mist);
  color: var(--color-charcoal);
  font-family: var(--font-inter);
  font-size: 14px;
  line-height: 1.43;
  overflow: hidden;
}

.mobile-page {
  height: 100dvh;
  overflow: hidden;
  padding: calc(16px + env(safe-area-inset-top)) 16px 24px;
}

.page-title {
  color: var(--color-fog);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  margin: 0 0 10px;
}

.truck-grid {
  background: transparent;
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(var(--grid-columns), var(--cell-size));
  grid-template-rows: repeat(var(--grid-rows), var(--cell-size));
  height: calc(100dvh - 104px - env(safe-area-inset-top));
  align-content: space-between;
  justify-content: center;
  padding: 0;
}

.bottom-menu {
  align-items: stretch;
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(4, 1fr);
  height: 64px;
  margin-top: 16px;
}

.bottom-menu button {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0;
}

.bottom-menu__connect {
  color: var(--color-fog);
  font-size: 12px;
}

.truck-cell {
  aspect-ratio: 1 / 1;
  align-items: center;
  background: #d4d4d4;
  border: 0;
  border-radius: 6px;
  display: flex;
  font-size: 16px;
  font-weight: 600;
  justify-content: center;
  padding: 0;
}

.grid-message {
  align-self: center;
  color: var(--color-fog);
  grid-column: 1 / -1;
  justify-self: center;
  margin: 0;
  text-align: center;
}

.grid-message--error {
  color: #b42318;
}

.truck-cell:hover,
.truck-cell:focus-visible {
  outline: 3px solid var(--color-electric-blue);
  outline-offset: 2px;
}

.controls-backdrop[hidden] {
  display: none;
}

.controls-backdrop {
  align-items: center;
  background: rgb(23 23 23 / 50%);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 16px;
  position: fixed;
  z-index: 10;
}

.controls-window {
  background: var(--color-canvas-white);
  border: 1px solid var(--color-ash);
  border-radius: var(--radius-cards);
  box-shadow: 0 10px 24px rgb(0 0 0 / 12%);
  max-width: 100%;
  padding: 16px;
  width: max-content;
}

.sr-only {
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.truck-selector {
  align-items: center;
  display: grid;
  grid-template-columns: 60px auto 60px;
  min-height: 128px;
}

.truck-selector__button {
  align-items: center;
  align-self: stretch;
  background: transparent;
  border: 0;
  color: var(--color-midnight-ink);
  display: flex;
  justify-content: center;
  padding: 0;
}

.truck-selector__button:hover:not(:disabled) {
  background: var(--color-paper-mist);
}

.truck-selector__button:disabled {
  color: var(--color-silver);
  cursor: not-allowed;
}

.truck-selector__button svg {
  height: 28px;
  width: 28px;
}

.truck-selector__number {
  color: var(--color-midnight-ink);
  font-size: var(--text-truck-number);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1;
  min-width: 3ch;
  text-align: center;
}

.status-selector {
  align-items: center;
  border-radius: 16px;
  display: grid;
  grid-template-columns: 60px 200px 60px;
  overflow: hidden;
  width: max-content;
}

.status-selector__button {
  align-items: center;
  align-self: stretch;
  background: transparent;
  border: 0;
  color: var(--color-midnight-ink);
  display: flex;
  justify-content: center;
  min-height: 84px;
  padding: 0;
}

.status-selector__button:hover {
  background: rgb(255 255 255 / 18%);
}

.status-selector__button svg {
  height: 28px;
  width: 28px;
}

.status-selector__label {
  align-items: center;
  display: flex;
  font-size: 26px;
  font-weight: 500;
  justify-content: center;
  line-height: 1.2;
  min-height: 84px;
  text-align: center;
  white-space: nowrap;
}

.status--on-yard { background: #ffd166; }
.status--on-route { background: #52BB4A; }
.status--repair-shop,
.status--at-dealership { background: #ff6f61; }
.status--other { background: #eef3fb; }
.status--unknown { background: #b5b5b7; }
.status--sold { background: #ff6f61; }

.date-display {
  background: #eeeeee;
  border: 0;
  border-radius: 20px;
  color: var(--color-midnight-ink);
  display: block;
  font-size: 26px;
  font-weight: 500;
  line-height: 1;
  margin-top: 16px;
  padding: 28px 24px;
  text-align: center;
  width: 100%;
}

.calendar-popover[hidden] {
  display: none;
}

.calendar-popover {
  background: var(--color-canvas-white);
  border: 1px solid var(--color-ash);
  border-radius: var(--radius-cards);
  box-shadow: 0 10px 24px rgb(0 0 0 / 12%);
  margin-top: 8px;
  padding: 16px;
}

.calendar__header,
.calendar__month-actions {
  align-items: center;
  display: flex;
}

.calendar__header {
  justify-content: space-between;
  margin-bottom: 12px;
}

.calendar__month-actions { gap: 4px; }
.calendar__month-actions button,
.calendar__today {
  background: transparent;
  border: 0;
  color: var(--color-charcoal);
  cursor: pointer;
}

.calendar__month-actions button {
  font-size: 24px;
  height: 28px;
  line-height: 1;
  width: 28px;
}

.calendar__grid {
  display: grid;
  gap: 4px;
  grid-template-columns: repeat(7, 1fr);
}

.calendar__grid--names { margin-bottom: 4px; }
.calendar__day-name { color: var(--color-fog); font-size: 11px; text-align: center; }
.calendar__day {
  background: transparent;
  border: 0;
  border-radius: var(--radius-full);
  color: var(--color-charcoal);
  height: 32px;
  padding: 0;
}

.calendar__day:hover { background: var(--color-paper-mist); }
.calendar__day--today { color: var(--color-electric-blue); font-weight: 600; }
.calendar__day--selected { background: var(--color-electric-blue); color: white; }
.calendar__day--selected:hover { background: var(--color-deep-sapphire); }
.calendar__today { color: var(--color-electric-blue); font-size: 12px; margin-top: 12px; padding: 0; }

.save-button {
  align-items: center;
  border: 0;
  border-radius: 20px;
  color: var(--color-canvas-white);
  display: flex;
  font-size: 26px;
  font-weight: 400;
  gap: 10px;
  justify-content: center;
  margin-top: 16px;
  min-height: 84px;
  padding: 16px 24px;
  width: 100%;
}

.save-button svg { height: 32px; width: 32px; }
.save-button--save { background: var(--color-midnight-ink); }
.save-button--saved { background: #52BB4A; }
.save-button--update { background: #ffd000; color: var(--color-midnight-ink); }
.save-button--error { background: #ff5908; color: var(--color-midnight-ink); }
.save-button:active { transform: scale(.99); }

.controls-window__header {
  align-items: center;
  display: flex;
  gap: 24px;
  justify-content: space-between;
}

.controls-window h2 {
  font-size: 16px;
  margin: 0;
  white-space: nowrap;
}

.controls-window__close {
  align-items: center;
  background: transparent;
  border: 0;
  color: var(--color-fog);
  display: flex;
  font-size: 24px;
  height: 24px;
  justify-content: center;
  line-height: 1;
  padding: 0;
  width: 24px;
}

.controls-window__close {
  color: var(--color-fog);
  display: block;
  font-size: 12px;
  height: auto;
  margin: 12px auto 0;
  width: auto;
}

.controls-window__truck {
  color: var(--color-steel);
  margin: 12px 0 0;
  white-space: nowrap;
}

button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; }

.app-shell { min-height: 100vh; }

.topbar {
  align-items: center;
  background: var(--color-canvas-white);
  border-bottom: 1px solid var(--color-ash);
  display: flex;
  gap: var(--spacing-32);
  justify-content: space-between;
  min-height: 72px;
  padding: 0 max(24px, calc((100vw - 1200px) / 2));
}

.brand { align-items: center; display: inline-flex; font-weight: 600; gap: var(--spacing-8); white-space: nowrap; }
.brand-mark { color: var(--color-electric-blue); font-size: 20px; }
.topnav { display: flex; gap: 4px; margin-left: auto; }
.topnav__link { border-radius: var(--radius-full); color: var(--color-steel); padding: 8px 12px; }
.topnav__link:hover, .topnav__link--active { background: var(--color-paper-mist); color: var(--color-charcoal); }
.topbar__actions { display: flex; gap: var(--spacing-8); }

.button { border: 1px solid transparent; border-radius: var(--radius-buttons); font-weight: 500; padding: 9px 14px; }
.button--outline { background: var(--color-canvas-white); border-color: var(--color-ash); color: var(--color-charcoal); }
.button--outline:hover { background: var(--color-paper-mist); }
.button--primary { background: var(--color-midnight-ink); color: var(--color-canvas-white); }
.button--primary:hover { background: var(--color-deep-sapphire); }

.main-content { margin: 0 auto; max-width: 1200px; padding: 56px 24px 80px; }
.page-heading, .section-heading { align-items: flex-end; display: flex; justify-content: space-between; gap: var(--spacing-24); }
.eyebrow { color: var(--color-electric-blue); font-size: 11px; font-weight: 600; letter-spacing: .08em; margin: 0 0 8px; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-family: var(--font-satoshi); font-size: 40px; font-weight: 500; letter-spacing: -.02em; line-height: 1.1; margin-bottom: 8px; }
h2 { font-size: 24px; font-weight: 600; line-height: 1.33; margin-bottom: 0; }
h3 { font-size: 16px; margin-bottom: 4px; }
.page-heading__description { color: var(--color-fog); font-size: 16px; margin-bottom: 0; }
.stats-grid { display: grid; gap: var(--spacing-16); grid-template-columns: repeat(3, 1fr); margin: 40px 0 24px; }
.dashboard-card { background: var(--color-canvas-white); border: 1px solid var(--color-ash); border-radius: var(--radius-cards); }
.stat-card { display: flex; flex-direction: column; gap: 4px; padding: var(--spacing-16); }
.stat-card__label { color: var(--color-steel); font-size: 13px; }
.stat-card__value { font-size: 30px; font-weight: 500; line-height: 1.2; }
.stat-card__meta { color: var(--color-fog); font-size: 12px; }
.table-card { min-height: 360px; padding: var(--spacing-24); }
.pill-badge { background: var(--color-soft-mint); border-radius: var(--radius-full); font-size: 11px; padding: 6px 10px; }
.empty-state { align-items: center; display: flex; flex-direction: column; justify-content: center; min-height: 250px; text-align: center; }
.empty-state__icon { color: var(--color-electric-blue); font-size: 32px; margin-bottom: 12px; }
.empty-state p { color: var(--color-fog); margin-bottom: 0; }

@media (max-width: 720px) {
  .topbar { align-items: flex-start; flex-wrap: wrap; padding: 16px 20px; }
  .topnav { order: 3; margin-left: 0; width: 100%; }
  .topbar__actions { margin-left: auto; }
  .main-content { padding: 40px 16px 56px; }
  .page-heading { align-items: flex-start; flex-direction: column; }
  .stats-grid { grid-template-columns: 1fr; margin-top: 28px; }
  .table-card { padding: 16px; }
}