:root {
  --color-primary: #1a56db;
  --color-primary-light: #3b82f6;
  --color-primary-dark: #1e3a8a;
  --color-secondary: #059669;
  --color-accent: #7c3aed;
  --color-danger: #dc2626;
  --color-warning: #f59e0b;
  --color-success: #10b981;
  --color-text: #111827;
  --color-text-light: #667085;
  --color-bg: #ffffff;
  --color-bg-alt: #f6f7f9;
  --color-border: #e4e7ec;
  --color-ink-strong: #0d1529;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --radius: 6px;
  --radius-lg: 10px;
  --shadow-md: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  --transition-base: 250ms ease;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg-alt);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

#app { min-height: 100vh; }

.shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem;
}

header.app-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.brand-nygen {
  font-weight: 650;
  font-size: 1rem;
  color: var(--color-ink-strong);
  letter-spacing: -0.015em;
}

.brand-waldo {
  font-weight: 550;
  color: var(--color-primary);
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.muted { color: var(--color-text-light); font-size: 0.8125rem; }

button, .btn {
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 0.4rem 0.75rem;
  transition: background 120ms ease, border-color 120ms ease, transform 80ms ease, opacity 120ms ease;
}

button:not(.primary):not(.danger):hover:not(:disabled) {
  background: var(--color-bg-alt);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

button:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

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

button.primary:hover:not(:disabled) {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
}

button.primary:active:not(:disabled) {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(1px);
}

button.danger {
  color: var(--color-danger);
  border-color: #fecaca;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1rem;
}

.login-card { max-width: 420px; margin: 4rem auto; }

.login-card h1 {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
  font-weight: 650;
  line-height: 1.2;
}

.login-card input[type=email] {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font: inherit;
  margin: 0.75rem 0;
}

.login-card button[type=submit] {
  width: 100%;
}

.week-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.875rem;
  position: relative;
}

.week-stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #ffffff;
}

.week-stepper .week-nav-btn {
  border: 0;
  border-radius: 0;
  width: 2rem;
  height: 2rem;
  padding: 0;
  font-size: 1.1rem;
  line-height: 1;
}

.week-stepper .week-nav-btn + .week-label,
.week-stepper .week-label + .week-nav-btn {
  border-left: 1px solid var(--color-border);
}

.week-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  min-width: 6.75rem;
  height: 2rem;
  padding: 0 0.7rem;
  border: 0;
  border-radius: 0;
  background: #ffffff;
  color: var(--color-text);
  white-space: nowrap;
}

.week-label:hover:not(:disabled) {
  background: var(--color-bg-alt);
}

.week-number {
  font-weight: 500;
}

.week-offset {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.7rem;
  height: 1.15rem;
  padding: 0 0.35rem;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  font-size: 0.7rem;
  font-weight: 500;
}

.week-current-btn {
  margin-left: auto;
  height: 2rem;
}

.week-picker {
  position: absolute;
  top: calc(100% + 0.4rem);
  left: 0;
  z-index: 10;
  width: 19rem;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(16, 24, 40, 0.12);
}

.week-picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
  font-size: 0.8125rem;
  font-weight: 600;
}

.month-nav {
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  line-height: 1;
}

.week-picker-grid {
  display: grid;
  grid-template-columns: 2rem repeat(7, 1fr);
  gap: 0.2rem;
}

.week-picker-dow,
.week-picker-weeknum {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 1.65rem;
  color: var(--color-text-light);
  font-size: 0.6875rem;
}

.week-picker-weeknum {
  font-family: var(--font-mono);
}

.week-picker-day {
  width: 100%;
  min-width: 0;
  height: 1.65rem;
  padding: 0;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--color-text);
  font-size: 0.75rem;
}

.week-picker-day:hover:not(:disabled) {
  background: var(--color-bg-alt);
}

.week-picker-day.outside-month {
  color: #98a2b3;
}

.week-picker-day.selected-week {
  background: #eef2ff;
  color: var(--color-primary-dark);
}

.week-picker-day.today {
  box-shadow: inset 0 0 0 1px var(--color-primary);
  font-weight: 650;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.9rem;
  margin-bottom: 1rem;
  font-size: 0.75rem;
  color: var(--color-text-light);
}

.legend-item { display: flex; align-items: center; gap: 0.35rem; }

.legend-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.legend-icon .status-icon {
  width: 1rem;
  height: 1rem;
}

.legend-swatch {
  width: 1rem;
  height: 1rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  flex-shrink: 0;
}

.legend-swatch-weekend {
  background: repeating-linear-gradient(
    -45deg,
    var(--color-bg-alt),
    var(--color-bg-alt) 3px,
    #e5e7eb 3px,
    #e5e7eb 6px
  );
}

.notif-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.notif {
  flex: 1 1 220px;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.625rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #ffffff;
  font-size: 0.8125rem;
  line-height: 1.3;
}

.notif-value {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 650;
  flex-shrink: 0;
}

.notif-office { border-color: #d1fadf; background: #f6fef9; }
.notif-office .notif-value { color: var(--color-success); }
.notif-streak { border-color: #fedf89; background: #fffcf5; }
.notif-streak .notif-value { color: var(--color-warning); }

.roster-status {
  margin-bottom: 1rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.8125rem;
}

.roster-status.error {
  color: var(--color-danger);
  background: #fef2f2;
  border: 1px solid #fecaca;
}

.roster-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  position: relative;
}

.roster-loading {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.86);
  font-size: 0.8125rem;
  color: var(--color-text-light);
  border-radius: var(--radius-lg);
}

.spinner {
  width: 1.125rem;
  height: 1.125rem;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.65s linear infinite;
  flex-shrink: 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.roster-grid.is-fetching {
  opacity: 0.55;
  pointer-events: none;
}

.roster-card.is-loading .week-label {
  color: var(--color-text-light);
}

.skeleton-block {
  background: linear-gradient(90deg, #eef2f7 25%, #f8fafc 50%, #eef2f7 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.2s ease-in-out infinite;
  border-radius: 4px;
}

.skeleton-line {
  display: block;
  height: 0.65rem;
  width: 3.5rem;
}

.skeleton-line.short {
  width: 2.25rem;
  margin-top: 0.25rem;
}

.grid-person .avatar.skeleton-block {
  background: #eef2f7;
}

.grid-cell.skeleton-block {
  min-height: 2rem;
}

.grid-head .skeleton-block {
  width: 100%;
}

.roster-error {
  grid-column: 1 / -1;
  padding: 2rem 1rem;
  text-align: center;
  color: var(--color-danger);
  font-size: 0.875rem;
}

@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.roster-grid {
  display: grid;
  grid-template-columns: 140px repeat(7, 1fr);
  gap: 1px;
  background: var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  min-width: 640px;
}

.grid-head, .grid-person, .grid-cell {
  background: var(--color-bg);
  padding: 0.55rem 0.45rem;
  min-height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 0.75rem;
}

.grid-head {
  font-weight: 650;
  color: var(--color-text-light);
  flex-direction: column;
  gap: 0.15rem;
}

.grid-head.today {
  background: #eef2ff;
  color: var(--color-primary-dark);
  box-shadow: inset 2px 0 0 var(--color-primary), inset -2px 0 0 var(--color-primary), inset 0 3px 0 var(--color-primary);
}

.grid-cell.today-col {
  box-shadow: inset 2px 0 0 var(--color-primary), inset -2px 0 0 var(--color-primary);
}

.grid-cell.today-col.today-col-bottom {
  box-shadow: inset 2px 0 0 var(--color-primary), inset -2px 0 0 var(--color-primary), inset 0 -3px 0 var(--color-primary);
}

.grid-head .day-name { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.06em; }

.grid-head .day-date { font-family: var(--font-mono); font-size: 0.7rem; }

.grid-corner { background: var(--color-bg-alt); }

.grid-person {
  justify-content: flex-start;
  gap: 0.5rem;
  padding-left: 0.65rem;
  font-weight: 500;
}

.grid-person.you { background: #f0f7ff; }

.avatar {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 9999px;
  background: var(--color-primary);
  color: white;
  font-size: 0.65rem;
  font-weight: 650;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.person-name { font-size: 0.8125rem; }

.you-badge {
  font-size: 0.625rem;
  color: var(--color-primary);
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.grid-cell {
  flex-direction: column;
  gap: 0.15rem;
  position: relative;
}

.grid-cell.editable { cursor: pointer; }
.grid-cell.editable:hover { outline: 2px solid var(--color-primary-light); outline-offset: -2px; z-index: 1; }
.grid-cell.editable:focus-visible { outline: 2px solid var(--color-primary-light); outline-offset: -2px; z-index: 1; }

.grid-cell.weekend {
  background: repeating-linear-gradient(
    -45deg,
    var(--color-bg-alt),
    var(--color-bg-alt) 4px,
    #f3f4f6 4px,
    #f3f4f6 8px
  );
}

.grid-cell.holiday {
  background: rgba(220, 38, 38, 0.1);
}

.status-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
}

.status-icon {
  width: 1.15rem;
  height: 1.15rem;
  display: block;
}

.partial-icons {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
}

.partial-icons .status-icon {
  width: 0.9rem;
  height: 0.9rem;
}

.partial-icons .status-office { color: var(--color-success); }
.partial-icons .status-wfh { color: var(--color-primary); }

.grid-cell.office .status-icon-wrap { color: var(--color-success); }
.grid-cell.wfh .status-icon-wrap { color: var(--color-primary); }
.grid-cell.vacation .status-icon-wrap { color: #b45309; }
.grid-cell.work_travel .status-icon-wrap { color: var(--color-accent); }
.grid-cell.sick .status-icon-wrap { color: var(--color-danger); }
.grid-cell.holiday .status-icon-wrap { color: var(--color-danger); }

.grid-cell.wfh { background: #e8effd; }
.grid-cell.vacation { background: #fef3c7; }
.grid-cell.work_travel { background: #f1ebfe; }
.grid-cell.sick { background: #fde8e8; }

dialog {
  border: none;
  border-radius: var(--radius-lg);
  padding: 1rem;
  max-width: 420px;
  width: calc(100% - 2rem);
  box-shadow: var(--shadow-md);
}

dialog::backdrop { background: rgba(15, 23, 42, 0.35); }

dialog h2 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.3;
}

dialog label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.7rem;
}

dialog input, dialog select, dialog textarea {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font: inherit;
  background: #ffffff;
}

dialog textarea {
  resize: vertical;
  min-height: 4.5rem;
}

dialog .row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }

.dialog-actions { display: flex; align-items: center; gap: 0.5rem; margin-top: 1rem; }
.dialog-actions .spacer { flex: 1; }

.error { color: var(--color-danger); font-size: 0.8125rem; }
.hidden { display: none !important; }

.message-ok { color: var(--color-secondary); margin-top: 0.75rem; font-size: 0.8125rem; }

.toast {
  position: fixed;
  top: 1rem;
  left: 50%;
  z-index: 50;
  transform: translateX(-50%);
  max-width: calc(100vw - 2rem);
  padding: 0.6rem 0.85rem;
  border: 1px solid #d1fadf;
  border-radius: var(--radius);
  background: #f6fef9;
  color: #027a48;
  box-shadow: var(--shadow-md);
  font-size: 0.8125rem;
  font-weight: 500;
}

.toast.error {
  border-color: #fecaca;
  background: #fef2f2;
  color: var(--color-danger);
}

@media (max-width: 900px) {
  .roster-grid { font-size: 0.75rem; grid-template-columns: 110px repeat(7, 1fr); }
  .grid-person { padding-left: 0.4rem; }
  .person-name { display: none; }
}