* { box-sizing: border-box; }

/* Das hidden-Attribut muss immer gewinnen — auch gegen display:flex aus Klassen. */
[hidden] { display: none !important; }

:root {
  --accent: #1f3a5c;
  --accent-2: #4a75ab;
  --accent-3: #7ea0c9;
  --accent-soft: #e4ebf4;
  --accent-rgb: 74, 117, 171;
  --bg: #eef2f7;
  --card: #ffffff;
  --sidebar-bg: #ffffff;
  --text: #101820;
  --text-muted: #5c6b7d;
  --border: #dbe2ec;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(16, 24, 32, 0.05), 0 8px 24px -12px rgba(16, 24, 32, 0.14);
  --shadow-hover: 0 4px 10px rgba(16, 24, 32, 0.07), 0 16px 32px -14px rgba(16, 24, 32, 0.2);
  --open-bg: #fef3c7; --open-fg: #92400e;
  --billed-bg: #dcfce7; --billed-fg: #166534;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --accent: #7ea0c9;
  --accent-2: #6b93bd;
  --accent-3: #3b5a7a;
  --accent-soft: #232e40;
  --accent-rgb: 126, 160, 201;
  --bg: #161c27;
  --card: #1e2733;
  --sidebar-bg: #192129;
  --text: #eaf0f7;
  --text-muted: #97a3b5;
  --border: #303c4e;
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.14);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.28), 0 8px 24px -12px rgba(0, 0, 0, 0.55);
  --shadow-hover: 0 4px 10px rgba(0, 0, 0, 0.32), 0 16px 32px -14px rgba(0, 0, 0, 0.65);
  --open-bg: #3f2f10; --open-fg: #fbbf24;
  --billed-bg: #0f2e22; --billed-fg: #4ade80;
  color-scheme: dark;
}

html, body { height: 100%; }
body {
  margin: 0;
  font-family: "Segoe UI", -apple-system, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  transition: background 0.2s ease, color 0.2s ease;
}

button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
}

/* Shell layout: fixed sidebar + scrolling content */
.app-shell { display: flex; align-items: stretch; min-height: 100vh; }

.sidebar {
  width: 246px;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 22px 14px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  transition: background 0.2s ease, border-color 0.2s ease;
  z-index: 30;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 2px 10px 22px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.logo-mark {
  width: 30px;
  height: 30px;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(16, 24, 32, 0.35));
}

.side-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-btn {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  padding: 10px 12px;
  border: none;
  background: none;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  text-align: left;
  transition: color 0.15s ease, background 0.15s ease;
}
.nav-btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav-btn:hover { background: var(--accent-soft); color: var(--accent-2); }
.nav-btn.active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  box-shadow: 0 4px 12px -4px rgba(var(--accent-rgb), 0.55);
}

.sidebar-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 14px;
  margin-top: 14px;
  border-top: 1px solid var(--border);
}

.icon-btn {
  border: 1px solid var(--border);
  background: var(--card);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease, color 0.15s ease;
  flex-shrink: 0;
}
.icon-btn svg { width: 17px; height: 17px; }
.icon-btn:hover { transform: translateY(-1px) scale(1.05); box-shadow: var(--shadow-hover); color: var(--accent-2); }
.icon-btn[data-state="linked"] { color: var(--billed-fg); border-color: var(--billed-fg); }
.icon-btn[data-state="warning"] { color: var(--open-fg); border-color: var(--open-fg); }

.icon-moon { display: none; }
:root[data-theme="dark"] .icon-sun { display: none; }
:root[data-theme="dark"] .icon-moon { display: block; }

.storage-widget { position: relative; }
.storage-panel {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 0;
  width: 300px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-hover);
  padding: 16px;
  z-index: 40;
  text-align: left;
}
.storage-panel h3 { margin: 0 0 8px; font-size: 14px; font-weight: 700; color: var(--text); }
.storage-status { font-size: 12.5px; color: var(--text-muted); margin: 0 0 12px; line-height: 1.45; }
.storage-actions { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.storage-actions button { width: 100%; text-align: center; }
.storage-hint { font-size: 11px; color: var(--text-muted); margin: 0; line-height: 1.45; }

/* Main content */
.main-area { flex: 1; min-width: 0; }
main { max-width: 960px; margin: 0 auto; padding: 36px 32px 60px; }

.page-head { margin-bottom: 20px; }
.page-head h1 { margin: 0 0 4px; font-size: 22px; font-weight: 800; letter-spacing: -0.02em; }
.page-head p { margin: 0; font-size: 13px; color: var(--text-muted); }

.tab-content { display: none; animation: fadeIn 0.25s ease; }
.tab-content.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.card:hover { box-shadow: var(--shadow-hover); }
.card h2 {
  margin-top: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card h2::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  flex-shrink: 0;
}

.card-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.filter-row { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-row .combobox { width: 190px; }

.row { display: flex; gap: 14px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 14px; }
.row:last-child { margin-bottom: 0; }
.row label {
  display: flex;
  flex-direction: column;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  gap: 6px;
}
.row label.grow { flex: 1; min-width: 180px; }
.inline-checkbox { flex-direction: row !important; align-items: center; gap: 7px !important; font-size: 14px; }

.form-actions { display: flex; gap: 10px; margin-top: 16px; }

input, select {
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: var(--card);
  color: var(--text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
input:hover, select:hover { border-color: var(--accent-2); }
input:focus, select:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.18);
}
input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent-2); }

.date-wrap { display: flex; align-items: center; gap: 6px; }
.chip {
  background: var(--accent-soft);
  border: none;
  color: var(--accent-2);
  font-size: 11.5px;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: filter 0.15s ease;
}
.chip:hover { filter: brightness(0.95); }

/* Timer */
.timer-widget { display: flex; align-items: center; gap: 10px; }
.timer-display {
  font-family: Consolas, "Cascadia Mono", monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--accent-2);
  font-variant-numeric: tabular-nums;
}
.timer-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-soft);
  color: var(--accent-2);
  border: none;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
  transition: filter 0.15s ease;
}
.timer-btn:hover { filter: brightness(0.96); }
.timer-dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.timer-btn.running { background: var(--danger-soft); color: var(--danger); }
.timer-btn.running .timer-dot { animation: pulse 1.2s ease infinite; }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

/* Searchable combobox */
.combobox { position: relative; min-width: 180px; }
.combobox-input {
  width: 100%;
  background: var(--card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%238b98a8' stroke-width='2' viewBox='0 0 24 24'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M21 21l-4.3-4.3'/%3E%3C/svg%3E") no-repeat right 10px center;
  padding-right: 30px;
}
.combobox-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-hover);
  max-height: 220px;
  overflow-y: auto;
  z-index: 30;
  padding: 6px;
}
.combobox-item {
  padding: 8px 10px;
  border-radius: 7px;
  font-size: 13.5px;
  cursor: pointer;
  color: var(--text);
}
.combobox-item:hover, .combobox-item.active { background: var(--accent-soft); color: var(--accent-2); }
.combobox-item.selected { font-weight: 700; }
.combobox-item.combobox-clear { color: var(--text-muted); font-style: italic; border-bottom: 1px solid var(--border); border-radius: 0; margin-bottom: 4px; padding-bottom: 8px; }
.combobox-empty { padding: 10px; font-size: 13px; color: var(--text-muted); text-align: center; }

/* Buttons */
button.primary {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  font-weight: 700;
  box-shadow: 0 4px 12px -3px rgba(var(--accent-rgb), 0.5);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
button.primary:hover { transform: translateY(-1px); box-shadow: 0 8px 18px -4px rgba(var(--accent-rgb), 0.6); }
button.primary:active { transform: translateY(0); }

button.ghost {
  background: none;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}
button.ghost:hover { border-color: var(--accent-2); color: var(--accent-2); }

button.danger {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 6px;
  border-radius: 6px;
  transition: background 0.15s ease;
}
button.danger:hover { background: var(--danger-soft); }

button.small {
  background: var(--accent-soft);
  color: var(--accent-2);
  border: none;
  padding: 5px 12px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.15s ease;
}
button.small:hover { filter: brightness(0.95); }

/* Tables */
.table-wrap { overflow-x: auto; border-radius: 10px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 11px 12px; white-space: nowrap; }
th.num, td.num { text-align: right; }
td.strong { font-weight: 700; }
td.desc-cell { max-width: 240px; overflow: hidden; text-overflow: ellipsis; }
th {
  color: var(--text-muted);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1.5px solid var(--border);
}
td { border-bottom: 1px solid var(--border); }
tbody tr { transition: background 0.12s ease; }
tbody tr:hover { background: var(--accent-soft); }
tbody tr:last-child td { border-bottom: none; }
tbody tr.editing { background: var(--accent-soft); box-shadow: inset 3px 0 0 var(--accent-2); }

.empty-row { text-align: center; color: var(--text-muted); font-style: italic; padding: 20px 10px; white-space: normal; }

/* Row action icons */
.actions-cell { text-align: right; }
.icon-action {
  background: none;
  border: none;
  padding: 5px;
  border-radius: 7px;
  cursor: pointer;
  color: var(--text-muted);
  opacity: 0.55;
  vertical-align: middle;
  transition: opacity 0.12s ease, background 0.12s ease, color 0.12s ease;
}
.icon-action svg { width: 15px; height: 15px; display: block; }
tbody tr:hover .icon-action { opacity: 1; }
.icon-action:hover { background: rgba(var(--accent-rgb), 0.16); color: var(--accent-2); opacity: 1; }
.icon-action.act-del:hover { background: var(--danger-soft); color: var(--danger); }

.badge { padding: 3px 10px; border-radius: 999px; font-size: 11.5px; font-weight: 700; letter-spacing: .01em; }
.badge.open { background: var(--open-bg); color: var(--open-fg); }
.badge.billed { background: var(--billed-bg); color: var(--billed-fg); }

.summary {
  text-align: right;
  font-weight: 700;
  color: var(--text);
  margin-top: 14px;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

/* Overview tab */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.stat-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px 16px 20px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: box-shadow 0.2s ease, transform 0.15s ease;
  overflow: hidden;
}
.stat-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
}
.stat-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-1px); }
.stat-card.accent-open::before { background: var(--open-fg); }
.stat-card.accent-billed::before { background: var(--billed-fg); }
.stat-label { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); }
.stat-value { font-size: 24px; font-weight: 800; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }

.bar-chart { display: flex; flex-direction: column; gap: 12px; }
.bar-row { display: grid; grid-template-columns: 140px 1fr 90px; align-items: center; gap: 12px; }
.bar-label { font-size: 13px; font-weight: 600; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar-track { background: var(--accent-soft); border-radius: 999px; height: 10px; overflow: hidden; }
.bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-2), var(--accent-3));
  transition: width 0.4s ease;
}
.bar-value { font-size: 13px; font-weight: 700; color: var(--text-muted); text-align: right; font-variant-numeric: tabular-nums; }

/* Login overlay */
.login-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 20, 0.55);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.login-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 30px;
  width: 330px;
  text-align: center;
  box-shadow: var(--shadow-hover);
  animation: fadeIn 0.25s ease;
}
.login-box img { width: 52px; height: 52px; object-fit: contain; }
.login-box h2 { margin: 12px 0 6px; font-size: 20px; font-weight: 800; letter-spacing: -0.02em; }
.login-box p { margin: 0; font-size: 13px; color: var(--text-muted); line-height: 1.5; }
.login-box form { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.login-box input { text-align: center; }
.login-error { margin-top: 12px !important; color: var(--danger) !important; font-weight: 700; }

/* Toasts */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column-reverse;
  gap: 10px;
  z-index: 300; /* über dem Login-Overlay (200), damit Meldungen immer lesbar sind */
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-2);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  box-shadow: var(--shadow-hover);
  min-width: 220px;
  max-width: 360px;
  animation: toastIn 0.2s ease;
}
.toast.success { border-left-color: var(--billed-fg); }
.toast.warning { border-left-color: var(--open-fg); }
.toast.error { border-left-color: var(--danger); }
.toast.leaving { animation: toastOut 0.2s ease forwards; }
.toast-action {
  background: var(--accent-soft);
  color: var(--accent-2);
  border: none;
  border-radius: 7px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
  transition: filter 0.15s ease;
}
.toast-action:hover { filter: brightness(0.95); }
@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(8px); }
}

@media (max-width: 900px) {
  .app-shell { flex-direction: column; }
  .sidebar {
    width: 100%;
    height: auto;
    position: sticky;
    top: 0;
    flex-direction: row;
    align-items: center;
    padding: 10px 14px;
    border-right: none;
    border-bottom: 1px solid var(--border);
    gap: 10px;
  }
  .brand { padding: 0; margin-right: 4px; }
  .brand span { display: none; }
  .side-nav {
    flex-direction: row;
    flex: 1;
    overflow-x: auto;
    gap: 2px;
  }
  .nav-btn { white-space: nowrap; padding: 8px 10px; }
  .nav-btn span { display: none; }
  .nav-btn svg { width: 20px; height: 20px; }
  .sidebar-footer { padding-top: 0; margin-top: 0; border-top: none; }
  main { padding: 24px 18px 48px; }
  .bar-row { grid-template-columns: 90px 1fr 70px; }
}