:root {
  --bg: #f4f6f8;
  --card-bg: #ffffff;
  --primary: #1d4e89;
  --primary-dark: #143a66;
  --accent: #2ea88a;
  --danger: #c0453a;
  --text: #1f2933;
  --text-muted: #63707e;
  --border: #e1e6ea;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

.hidden { display: none !important; }

/* Auth screen */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  background: var(--card-bg);
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(20, 58, 102, 0.08);
  padding: 40px;
  width: 100%;
  max-width: 380px;
}

.auth-card h1 {
  font-size: 1.4rem;
  color: var(--primary-dark);
  margin: 0 0 24px;
  text-align: center;
}

.auth-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.tab-btn {
  flex: 1;
  padding: 10px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-size: 0.95rem;
  color: var(--text-muted);
  cursor: pointer;
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

input, select {
  font-size: 0.95rem;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: #fff;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
}

button {
  cursor: pointer;
  font-family: inherit;
}

.primary-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 11px 18px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
}
.primary-btn:hover { background: var(--primary-dark); }

.secondary-btn {
  background: #eef2f6;
  color: var(--primary-dark);
  border: 1px solid var(--border);
  padding: 11px 18px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
}
.secondary-btn:hover { background: #e3e9ee; }

.danger-btn {
  background: var(--danger);
  color: #fff;
  border: none;
  padding: 11px 18px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
}
.danger-btn:hover { opacity: 0.9; }

.link-btn {
  background: none;
  border: none;
  color: var(--primary);
  font-size: 0.85rem;
  text-decoration: underline;
}

.form-error {
  color: var(--danger);
  font-size: 0.85rem;
  min-height: 1em;
  margin: 0;
}

.form-hint {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin: 8px 0 0;
}

/* App screen */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 14px 28px;
}

.brand {
  font-weight: 700;
  color: var(--primary-dark);
  font-size: 1.1rem;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.badge {
  background: #eef2f6;
  color: var(--primary-dark);
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.subnav {
  display: flex;
  gap: 4px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  overflow-x: auto;
}

.nav-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 14px 12px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
}

.nav-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 20px 60px;
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.sidebar {
  width: 230px;
  flex-shrink: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  position: sticky;
  top: 28px;
}

.sidebar-section + .sidebar-section {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.sidebar-title {
  margin: 0 0 10px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}

.sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sidebar-list li {
  font-size: 0.87rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-list.clickable li {
  cursor: pointer;
  padding: 5px 8px;
  border-radius: 6px;
}

.sidebar-list.clickable li:hover {
  background: #eef2f6;
}

.online-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.content {
  max-width: 700px;
  margin: 0;
  padding: 0;
  flex: 1;
  min-width: 0;
}

@media (max-width: 860px) {
  .layout {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    position: static;
  }
}

.view {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.card {
  background: var(--card-bg);
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 24px 28px;
}

.card h2 {
  margin: 0 0 16px;
  font-size: 1.05rem;
  color: var(--primary-dark);
}

.timer-display {
  display: flex;
  gap: 24px;
  margin-bottom: 12px;
}

.timer-block {
  flex: 1;
  background: #f6f9fb;
  border-radius: 10px;
  padding: 16px 20px;
  text-align: center;
}

.timer-block.secondary { background: #fbf6ee; }

.timer-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.timer-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-dark);
  font-variant-numeric: tabular-nums;
}

.shift-status {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.data-table th, .data-table td {
  text-align: left;
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
}

.inline-form {
  display: flex;
  gap: 14px;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.inline-form label {
  min-width: 130px;
}

.inline-form .grow {
  flex: 1;
  min-width: 180px;
}

.status-pending { color: #a8791c; font-weight: 600; }
.status-approved { color: var(--accent); font-weight: 600; }
.status-rejected { color: var(--danger); font-weight: 600; }

.small-btn {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  border: none;
  color: #fff;
  cursor: pointer;
  margin-right: 6px;
}

.approve-btn { background: var(--accent); }
.reject-btn { background: var(--danger); }

.card h3 {
  margin: 24px 0 12px;
  font-size: 0.92rem;
  color: var(--primary-dark);
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

.card h3:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 4px;
}

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

.timer-value.small {
  font-size: 1.4rem;
}

.timer-value.positive { color: var(--accent); }
.timer-value.negative { color: var(--danger); }

.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 24px;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.profile-grid .field-label {
  color: var(--text-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.profile-grid .field-value {
  margin-bottom: 8px;
}

.details-form {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 12px;
}

.details-form .grow {
  grid-column: span 3;
}

.details-form button {
  grid-column: span 3;
  justify-self: start;
}

#admin-user-select {
  max-width: 320px;
  margin-bottom: 8px;
}

@media (max-width: 720px) {
  .overtime-grid, .profile-grid, .details-form {
    grid-template-columns: 1fr;
  }
  .details-form .grow, .details-form button {
    grid-column: span 1;
  }
}

.calendar-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.calendar-label {
  font-weight: 600;
  color: var(--primary-dark);
  min-width: 160px;
  text-align: center;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.calendar-weekday {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  text-align: center;
  padding-bottom: 4px;
}

.calendar-day {
  min-height: 74px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px;
  font-size: 0.75rem;
  background: #fff;
}

.calendar-day.outside {
  background: #f6f9fb;
  color: var(--text-muted);
}

.calendar-day-number {
  font-weight: 600;
  margin-bottom: 4px;
}

.calendar-badge {
  display: block;
  border-radius: 5px;
  padding: 1px 5px;
  margin-bottom: 2px;
  font-size: 0.7rem;
  color: #fff;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badge-urlaub { background: var(--accent); }
.badge-krankheit { background: var(--danger); }
.badge-sonstiges { background: var(--text-muted); }

.calendar-legend {
  display: flex;
  gap: 20px;
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.legend-urlaub { background: var(--accent); }
.legend-krankheit { background: var(--danger); }
.legend-sonstiges { background: var(--text-muted); }

@media (max-width: 720px) {
  .calendar-grid {
    grid-template-columns: repeat(7, minmax(30px, 1fr));
  }
  .calendar-day {
    min-height: 50px;
    padding: 3px;
  }
}