:root {
  --bg: #f0f2f5;
  --surface: #ffffff;
  --surface2: #f7f8fa;
  --border: rgba(20,50,100,0.10);
  --border2: rgba(20,50,100,0.18);
  --text: #1a1e2e;
  --text2: #4a5470;
  --text3: #8a93b0;
  --accent: #143264;
  --accent2: #0e2448;
  --accent-gold: #F5A800;
  --accent-gold2: #d99200;
  --green: #16a34a;
  --green-bg: rgba(22,163,74,0.10);
  --amber: #d97706;
  --amber-bg: rgba(217,119,6,0.12);
  --red: #dc2626;
  --red-bg: rgba(220,38,38,0.10);
  --blue-bg: rgba(20,50,100,0.08);
  --radius: 10px;
  --radius-lg: 14px;
  font-family: 'DM Sans', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.6;
}

/* HEADER */
.header {
  background: var(--accent);
  border-bottom: none;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 8px rgba(20,50,100,0.25);
}
.logo {
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  width: 30px; height: 30px;
  background: var(--accent-gold);
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
}
.header-btn {
  background: var(--accent-gold);
  color: #1a1a1a;
  border: none;
  border-radius: var(--radius);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  transition: background .15s;
}
.header-btn:hover { background: var(--accent-gold2); }

/* MAIN */
.main { max-width: 1200px; margin: 0 auto; padding: 1.5rem; }

/* SIDE NAV */
.side-nav {
  position: fixed;
  left: 0; top: 58px; bottom: 0;
  width: 72px;
  background: var(--surface);
  border-right: 1px solid var(--border2, var(--border));
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: 0.75rem 0;
  overflow-y: auto;
}
.ovl-side-nav {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 72px;
  background: var(--surface);
  border-right: 1px solid var(--border2, var(--border));
  z-index: 500;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: 0.75rem 0;
  overflow-y: auto;
}
.ovl-shell { padding-left: 72px; }
.side-nav-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 4px;
  padding: 12px 4px;
  margin: 2px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  border: none;
  background: transparent;
  color: var(--text2);
  font-family: 'DM Sans', sans-serif;
  transition: background .15s, color .15s;
}
.side-nav-btn .snb-icon { font-size: 19px; line-height: 1; }
.side-nav-btn .snb-lbl { font-size: 10px; font-weight: 600; text-align: center; line-height: 1.2; }
.side-nav-btn:hover { background: var(--blue-bg); color: var(--accent); }
.side-nav-btn.active { background: var(--blue-bg); color: var(--accent); font-weight: 700; }
body.has-side-nav .main {
  margin-left: calc(72px + max(0px, (100vw - 72px - 1200px)/2));
  margin-right: max(0px, (100vw - 72px - 1200px)/2);
  max-width: 1200px;
}
@media (max-width:600px) {
  .side-nav, .ovl-side-nav, .dash-side-nav {
    left: 0; right: 0; bottom: auto;
    width: 100%; height: 60px;
    flex-direction: row;
    align-items: center;
    border-right: none;
    border-bottom: 1px solid var(--border2, var(--border));
    padding: 0 4px;
    overflow-x: auto;
    overflow-y: hidden;
  }
  .side-nav { top: 58px; }
  .ovl-side-nav { top: 0; }
  #dash-overlay { flex-direction: column !important; }
  .dash-side-nav { flex-shrink: 0; }
  .side-nav-btn { flex-direction: row; gap: 6px; margin: 2px; padding: 8px 12px; white-space: nowrap; flex-shrink: 0; }
  .side-nav-btn .snb-icon { font-size: 16px; }
  .side-nav-btn .snb-lbl { font-size: 11px; }
  body.has-side-nav .main { margin-left: 0; margin-right: 0; margin-top: 60px; }
  .ovl-shell { padding-left: 0; padding-top: 60px; }
}

/* METRICS */
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  margin-bottom: 1.5rem;
}
.metric {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--accent-gold);
  padding: 1rem 1.25rem;
  box-shadow: 0 1px 4px rgba(20,50,100,0.07);
}
.metric-val { font-size: 30px; font-weight: 700; line-height: 1; margin-bottom: 4px; font-family: 'DM Sans', sans-serif; font-variant-numeric: tabular-nums; }
.metric-lbl { font-size: 12px; color: var(--text2); }
.metric.c-green .metric-val { color: var(--green); }
.metric.c-blue .metric-val { color: var(--accent); }
.metric.c-amber .metric-val { color: var(--amber); }
.metric.c-red .metric-val { color: var(--red); }
.metric.c-purple .metric-val { color: #7c3aed; }

/* TOOLBAR */
.toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  align-items: center;
}
.search-wrap { flex: 1; min-width: 200px; position: relative; }
.search-wrap svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text3); }
.search-wrap input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 14px;
  padding: 9px 12px 9px 38px;
  font-family: 'DM Sans', sans-serif;
  outline: none;
  transition: border-color .15s;
  box-shadow: 0 1px 3px rgba(20,50,100,0.06);
}
.search-wrap input:focus { border-color: var(--accent-gold); }
.search-wrap input::placeholder { color: var(--text3); }

.tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.tab {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text2);
  font-size: 13px;
  padding: 7px 14px;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  transition: all .15s;
  white-space: nowrap;
}
.tab:hover { border-color: var(--accent-gold); color: var(--accent); }
.tab.active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 10px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  cursor: pointer;
  transition: border-color .15s, transform .1s, box-shadow .15s;
  box-shadow: 0 1px 4px rgba(20,50,100,0.07);
}
.card:hover { border-color: var(--accent-gold); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(20,50,100,0.12); }
.card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 10px; }
.card-id { font-family: 'DM Sans', sans-serif; font-size: 15px; font-weight: 700; letter-spacing: .1px; }
.badge {
  font-size: 11px; font-weight: 500;
  padding: 3px 9px;
  border-radius: 20px;
}
.b-free { background: var(--green-bg); color: var(--green); }
.b-rented { background: var(--blue-bg); color: var(--accent); }
.b-reserved { background: #f5f3ff; color: #6d28d9; }
.b-ending { background: var(--amber-bg); color: var(--amber); }
.b-overdue { background: var(--red-bg); color: var(--red); }
.card-model { font-size: 13px; color: var(--text2); margin-bottom: 4px; }
.card-specs { display: flex; gap: 10px; margin-bottom: 4px; }
.card-spec { font-size: 12px; color: var(--text2); display: flex; align-items: center; gap: 3px; }
.card-info { font-size: 12px; color: var(--text3); }
.card-info span { color: var(--text2); }
.card-actions { display: flex; gap: 6px; margin-top: 12px; }
.btn-sm {
  flex: 1;
  padding: 6px;
  font-size: 12px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  transition: all .15s;
  text-align: center;
}
.btn-sm:hover { background: var(--surface2); color: var(--text); }
.btn-sm.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-sm.primary:hover { background: var(--accent2); border-color: var(--accent2); }
.btn-sm.danger { color: var(--red); }
.btn-sm.danger:hover { background: var(--red-bg); border-color: var(--red); }
.btn-sm.end { color: var(--green); }
.btn-sm.end:hover { background: var(--green-bg); border-color: var(--green); }

.empty { text-align: center; color: var(--text3); padding: 4rem; font-size: 15px; }

/* PHOTO */
.card-photo {
  width: 100%;
  height: 120px;
  object-fit: contain;
  border-radius: 8px;
  margin-bottom: 10px;
  display: block;
  background: var(--surface2);
  padding: 8px;
}
.card-photo-placeholder {
  width: 100%;
  height: 120px;
  background: var(--surface2);
  border-radius: 8px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--text3);
}
.photo-upload-area {
  border: 2px dashed var(--border2);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  position: relative;
}
.photo-upload-area:hover { border-color: var(--accent); background: var(--blue-bg); }
.photo-upload-area input[type=file] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%;
}
.photo-upload-area .upload-icon { font-size: 28px; margin-bottom: 6px; }
.photo-upload-area .upload-text { font-size: 13px; color: var(--text2); }
.photo-preview {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-top: 10px;
  display: none;
}
.photo-uploading {
  font-size: 13px;
  color: var(--accent);
  text-align: center;
  margin-top: 8px;
  display: none;
}

/* MODAL */
.overlay {
  display: none !important;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.overlay.open { display: flex !important; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  width: 100%;
  max-width: 420px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal h2 { font-size: 17px; font-weight: 600; margin-bottom: 1.25rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 12px; color: var(--text2); margin-bottom: 5px; }
.form-group input, .form-group select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 14px;
  padding: 9px 12px;
  font-family: 'DM Sans', sans-serif;
  outline: none;
  transition: border-color .15s;
}
.form-group input:focus, .form-group select:focus { border-color: var(--accent); }
.form-group select option { background: var(--surface2); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.modal-footer { display: flex; gap: 10px; margin-top: 1.25rem; }
.btn-modal {
  flex: 1; padding: 10px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 14px; font-weight: 500;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  transition: all .15s;
}
.btn-modal.cancel { background: var(--surface2); color: var(--text2); border-color: var(--border); }
.btn-modal.cancel:hover { background: var(--bg); border-color: var(--border2); }
.btn-modal.confirm { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn-modal.confirm:hover { background: var(--accent2); border-color: var(--accent2); }
.btn-modal.danger-btn { background: var(--red-bg); border-color: var(--red); color: var(--red); }

/* LOADING */
.loading { text-align: center; color: var(--text3); padding: 3rem; font-size: 14px; }

/* TOAST */
.toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  background: var(--accent);
  border: 1px solid var(--accent2);
  color: #fff;
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 500;
  z-index: 999;
  transform: translateY(80px);
  opacity: 0;
  transition: all .25s;
  max-width: 280px;
  box-shadow: 0 4px 16px rgba(20,50,100,0.3);
}
.toast.show { transform: translateY(0); opacity: 1; }

/* CONFIG BANNER */
.config-banner {
  background: var(--amber-bg);
  border: 1px solid var(--amber);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 13px;
  color: var(--amber);
  line-height: 1.7;
}
.config-banner strong { display: block; margin-bottom: 4px; font-size: 14px; }
.config-banner code {
  background: rgba(0,0,0,.3);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: 'DM Mono', monospace;
  font-size: 12px;
}

/* ALERT BANNER */
.alert-banner {
  border-radius: var(--radius-lg);
  padding: 0.875rem 1.1rem;
  margin-bottom: 1rem;
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.alert-banner.overdue {
  background: var(--red-bg);
  border: 1px solid rgba(239,68,68,.25);
}
.alert-banner.ending {
  background: var(--amber-bg);
  border: 1px solid rgba(245,158,11,.25);
}
.alert-banner-title {
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 2px;
}
.alert-banner.overdue .alert-banner-title { color: var(--red); }
.alert-banner.ending  .alert-banner-title { color: var(--amber); }
.alert-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.alert-row-info { color: var(--text2); line-height: 1.5; }
.alert-row-info strong { color: var(--text); font-weight: 500; }
.alert-btn-sm {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--border2);
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  white-space: nowrap;
  flex-shrink: 0;
}
.alert-btn-sm:hover { background: var(--surface2); color: var(--text); }

/* TABLE VIEW */
.fleet-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.fleet-table th {
  text-align: left;
  padding: 9px 12px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
  white-space: nowrap;
}
.fleet-table th.sortable {
  cursor: pointer;
  user-select: none;
}
.fleet-table th.sortable:hover { color: var(--text); }
.fleet-table th.sort-active { color: var(--accent); }
.fleet-table th .sort-arrow { margin-left: 4px; opacity: .5; font-style: normal; }
.fleet-table th.sort-active .sort-arrow { opacity: 1; }
.fleet-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}
.fleet-table tr:last-child td { border-bottom: none; }
.fleet-table tr { cursor: pointer; transition: background .1s; }
.fleet-table tr:hover td { background: var(--surface2); }
.fleet-table .td-mono { font-family: 'DM Mono', monospace; font-size: 12px; color: var(--text2); }
.fleet-table .td-muted { color: var(--text3); font-size: 12px; }
.fleet-table .td-actions { white-space: nowrap; text-align: right; }

.autocomplete-list {
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  background: var(--surface);
  border: 1px solid var(--accent-gold);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  z-index: 1000;
  max-height: 200px;
  overflow-y: auto;
  box-shadow: 0 4px 12px rgba(20,50,100,0.15);
}
.autocomplete-item {
  padding: 10px 14px;
  cursor: pointer;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  transition: background .1s;
}
.autocomplete-item:last-child { border-bottom: none; }
.autocomplete-item:hover, .autocomplete-item.active { background: var(--blue-bg); color: var(--accent); }
.autocomplete-item small { display: block; color: var(--text3); font-size: 11px; margin-top: 2px; }
.autocomplete-wrap { position: relative; }

@media (max-width: 600px) {
  .header { padding: 0 0.75rem; height: 54px; }
  .main { padding: 0.75rem; }
  .form-row { grid-template-columns: 1fr; }
  .header-nav { display: none; }
  .header-nav.open {
    display: flex !important;
    flex-direction: column;
    position: fixed;
    top: 54px; left: 0; right: 0;
    background: var(--accent);
    border-bottom: 3px solid var(--accent-gold);
    padding: 10px;
    gap: 6px;
    z-index: 200;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  }
  .header-nav.open .header-btn {
    width: 100%;
    text-align: left;
    padding: 12px 14px;
    font-size: 14px;
    border-radius: 8px;
  }
  .hamburger { display: flex !important; }

  /* Metryki — 2 kolumny */
  .metrics { grid-template-columns: 1fr 1fr; gap: 8px; }
  .metric { padding: 0.75rem 1rem; }
  .metric-val { font-size: 24px; }

  /* Siatka wózków — 1 kolumna na bardzo małych, 2 na większych */
  .grid { grid-template-columns: 1fr; gap: 10px; }
  .card { padding: 0.875rem; }
  .card-photo { height: 160px; }

  /* Tabs — scrollowalne */
  .tabs { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { white-space: nowrap; flex-shrink: 0; }

  /* Toolbar */
  .toolbar { gap: 8px; }
  .search-wrap { min-width: 0; }

  /* Modals */
  .modal { padding: 1.25rem; border-radius: 16px 16px 0 0; position: fixed; bottom: 0; left: 0; right: 0; max-height: 90vh; overflow-y: auto; margin: 0 !important; max-width: 100% !important; }
  .overlay.open { align-items: flex-end; }
  .modal-footer { flex-wrap: wrap; gap: 8px; }
  .modal-footer .btn-modal { flex: 1 1 calc(50% - 4px); }
  .btn-modal { padding: 12px 10px; font-size: 14px; }

  /* Formularz */
  .form-group label { font-size: 13px; }
  .form-group input, .form-group select, .form-group textarea { font-size: 16px !important; } /* zapobiega zoom na iOS */
}

@media (min-width: 480px) and (max-width: 600px) {
  .grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 601px) {
  .hamburger { display: none !important; }
  .header-nav { display: flex !important; }
}