:root {
  --color-bg: #f4f5f7;
  --color-bg-subtle: #eef1f6;
  --color-card: #ffffff;
  --color-primary: #1f6feb;
  --color-primary-dark: #1857b8;
  --color-danger: #d64545;
  --color-text: #1c1f26;
  --color-dim: #6b7280;
  --color-border: #e2e5eb;
  --color-highlight-bg: rgba(31, 111, 235, 0.07);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #15171b;
    --color-bg-subtle: #24272e;
    --color-card: #1e2126;
    --color-primary: #5b9dff;
    --color-primary-dark: #7fb1ff;
    --color-danger: #ff7a7a;
    --color-text: #e8eaee;
    --color-dim: #9aa1ac;
    --color-border: #34383f;
    --color-highlight-bg: rgba(91, 157, 255, 0.14);
  }
}

:root[data-theme="dark"] {
  --color-bg: #15171b;
  --color-bg-subtle: #24272e;
  --color-card: #1e2126;
  --color-primary: #5b9dff;
  --color-primary-dark: #7fb1ff;
  --color-danger: #ff7a7a;
  --color-text: #e8eaee;
  --color-dim: #9aa1ac;
  --color-border: #34383f;
  --color-highlight-bg: rgba(91, 157, 255, 0.14);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 18px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.dim { color: var(--color-dim); }

/* Login */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #1f6feb, #123a73);
}
.login-card {
  background: var(--color-card);
  padding: 2.5rem 2rem;
  border-radius: var(--radius);
  width: min(90vw, 380px);
  text-align: center;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.login-card h1 { margin: 0 0 0.25rem; font-size: 1.5rem; }
.login-sub { margin: 0 0 1.5rem; color: var(--color-dim); }
.login-card input {
  width: 100%;
  padding: 1rem;
  font-size: 1.2rem;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  margin-bottom: 1rem;
  background: var(--color-card);
  color: var(--color-text);
}
.login-card button {
  width: 100%;
  padding: 1rem;
  font-size: 1.2rem;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: 10px;
}
.login-error { color: var(--color-danger); font-weight: 600; }
.login-back {
  display: block;
  margin-top: 1rem;
  color: var(--color-dim);
  font-size: 0.9rem;
  text-decoration: none;
}

/* Layout */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.5rem;
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}
.topbar-title h1 { margin: 0; font-size: 1.4rem; }
.topbar-title .subtitle { color: var(--color-dim); }
.topbar-actions { display: flex; align-items: center; gap: 0.6rem; }
.admin-badge {
  background: rgba(31, 111, 235, 0.12);
  color: var(--color-primary);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.status-card {
  margin: 1.2rem 1.5rem;
  padding: 1.2rem 1.5rem;
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.status-main { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.status-gauge { flex: 1; min-width: 220px; }
.gauge-bar {
  height: 22px;
  background: var(--color-bg-subtle);
  border-radius: 999px;
  overflow: hidden;
}
.gauge-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #1f6feb, #24b47e);
  transition: width 0.4s ease;
}
.gauge-numbers { margin-top: 0.5rem; font-size: 1.6rem; font-weight: 700; }
.status-meta { display: flex; gap: 1.5rem; flex-wrap: wrap; font-size: 1rem; }
.status-footer {
  margin-top: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.toolbar {
  margin: 0 1.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.toolbar-right { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.toolbar select {
  padding: 0.7rem;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  font-size: 1rem;
  background: var(--color-card);
  color: var(--color-text);
}

.date-filter-trigger { font-weight: 600; }

@media (max-width: 700px) {
  .toolbar-right { width: 100%; }
}

/* Zeitraum-Kalender-Modal */
.date-filter-card { width: min(560px, 100vw); }
.date-filter-body {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.date-filter-calendar { flex: 1 1 260px; min-width: 240px; }
.date-filter-presets {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 0 0 160px;
}
.date-filter-presets .date-preset {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
}
.date-filter-presets .date-preset:active {
  background: rgba(31, 111, 235, 0.12);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
  font-weight: 600;
}
.cal-nav-btn {
  background: none;
  border: none;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--color-text);
  cursor: pointer;
  padding: 0.2rem 0.6rem;
  border-radius: 8px;
}
.cal-nav-btn:active { background: var(--color-bg-subtle); }
.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-dim);
  margin-bottom: 0.3rem;
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}
.cal-day {
  aspect-ratio: 1;
  border: none;
  background: transparent;
  color: var(--color-text);
  border-radius: 50%;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cal-day-empty { visibility: hidden; cursor: default; }
.cal-day.is-today { font-weight: 700; color: var(--color-primary); }
.cal-day.in-range { background: rgba(31, 111, 235, 0.12); border-radius: 0; }
.cal-day.range-endpoint { background: var(--color-primary); color: #fff; }

.marker-hint {
  margin: 0 1.5rem 0.8rem;
  font-size: 0.85rem;
}

.table-wrap {
  margin: 0 1.5rem 2rem;
  background: var(--color-card);
  border-radius: var(--radius);
  overflow-x: auto;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th, td {
  text-align: left;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
th { color: var(--color-dim); font-weight: 600; font-size: 0.9rem; text-transform: uppercase; line-height: 1.3; }

tbody tr.row-hochgeladen { background: var(--color-highlight-bg); }
tbody tr.row-hochgeladen:hover { background: var(--color-highlight-bg); }

.marker-cell { width: 1.6rem; padding-left: 1.2rem; padding-right: 0; }
.marker-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: transparent;
  padding: 0;
  cursor: pointer;
}
.marker-dot.marked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

@media (max-width: 900px) {
  table { min-width: 560px; }
  th, td { padding: 0.6rem 0.5rem; font-size: 0.85rem; }
  th { font-size: 0.75rem; }
}
tbody tr { cursor: pointer; }
tbody tr:hover { background: var(--color-bg-subtle); }
tbody.locked tr { cursor: default; }
tbody.locked tr:hover { background: none; }
#empty-hint { padding: 1.5rem; }

/* Buttons */
button, .btn-primary, .btn-secondary, .btn-ghost, .btn-small, .btn-danger {
  font-family: inherit;
  cursor: pointer;
}
.btn-primary {
  background: var(--color-primary);
  color: white;
  border: none;
  padding: 1rem 1.4rem;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 600;
}
.btn-primary:active { background: var(--color-primary-dark); }
.btn-secondary {
  background: var(--color-card);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: 0.7rem 1rem;
  border-radius: 10px;
  text-decoration: none;
  font-size: 0.95rem;
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--color-border);
  padding: 0.7rem 1.1rem;
  border-radius: 10px;
  font-size: 0.95rem;
  color: var(--color-text);
}
.btn-small {
  background: var(--color-bg-subtle);
  border: none;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--color-text);
}
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0;
}
.icon-btn svg { display: block; }
.btn-danger {
  background: var(--color-danger);
  color: white;
  border: none;
  padding: 1rem 1.2rem;
  border-radius: 12px;
  font-size: 1rem;
}
.logout-form { margin: 0; }

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 20, 30, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 50;
}
.modal-card {
  background: var(--color-card);
  width: min(560px, 100vw);
  max-height: 92vh;
  overflow-y: auto;
  border-radius: 20px 20px 0 0;
  padding: 1.5rem;
}
.modal-card h2 { margin-top: 0; }
.modal-card label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  color: var(--color-dim);
}
.modal-card input,
.modal-card select {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.9rem;
  font-size: 1.1rem;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  color: var(--color-text);
  background: var(--color-card);
}
.row2 { display: flex; gap: 1rem; }
.row2 label { flex: 1; }
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.field-label {
  font-size: 0.95rem;
  color: var(--color-dim);
  margin-bottom: 0.5rem;
}

.fuel-select {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.2rem;
}
.fuel-option {
  flex: 1;
  position: relative;
  margin: 0 !important;
}
.fuel-option input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  margin: 0 !important;
  cursor: pointer;
}
.fuel-option span {
  display: block;
  text-align: center;
  padding: 1rem;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
}
.fuel-option input:checked + span {
  border-color: var(--color-primary);
  background: rgba(31, 111, 235, 0.1);
  color: var(--color-primary);
}
.fuel-option input:focus-visible + span {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.status-note {
  margin: 0.6rem 0 0;
  font-size: 0.85rem;
}

.sonder-chips {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin: -0.4rem 0 1.2rem;
}
.sonder-chip {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 0.55rem 0.7rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  line-height: 1.15;
}
.sonder-chip:active {
  background: rgba(31, 111, 235, 0.12);
  border-color: var(--color-primary);
}
.sonder-chip.active {
  background: rgba(31, 111, 235, 0.12);
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.sonder-chip .sonder-code {
  font-weight: 400;
  font-size: 0.78rem;
  color: var(--color-dim);
}

@media (min-width: 480px) {
  .sonder-chips { grid-template-columns: 1fr 1fr 1fr; }
}

@media (min-width: 640px) {
  .modal-backdrop { align-items: center; }
  .modal-card { border-radius: 20px; }
}

/* CSV-Export-Dialog */
.period-select {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}
.period-option {
  flex: 1;
  position: relative;
  margin: 0 !important;
}
.period-option input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  margin: 0 !important;
  cursor: pointer;
}
.period-option span {
  display: block;
  text-align: center;
  padding: 0.85rem;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
}
.period-option input:checked + span {
  border-color: var(--color-primary);
  background: rgba(31, 111, 235, 0.1);
  color: var(--color-primary);
}

.csv-success {
  color: #1a8a4c;
  font-weight: 600;
}
:root[data-theme="dark"] .csv-success { color: #4fd68a; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .csv-success { color: #4fd68a; }
}

.recipient-admin {
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}
.recipient-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.8rem;
}
.recipient-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  background: var(--color-bg-subtle);
  border-radius: 8px;
  padding: 0.5rem 0.7rem;
  font-size: 0.9rem;
}
.recipient-row .recipient-info { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.recipient-row .recipient-email { color: var(--color-dim); font-size: 0.82rem; }
.recipient-remove {
  background: none;
  border: none;
  color: var(--color-danger);
  font-size: 1.2rem;
  line-height: 1;
  padding: 0.2rem 0.4rem;
  cursor: pointer;
  flex-shrink: 0;
}
.recipient-add-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.recipient-add-row input {
  flex: 1;
  min-width: 140px;
  padding: 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-card);
  color: var(--color-text);
  font-size: 0.95rem;
}