/* =====================================================================
   Mein Lokbuch – zentrales Design-System
   Clean-Light mit Dark-Mode (umschaltbar via html[data-theme="dark"]).
   Farben/Abstände kommen aus CSS-Variablen, damit beide Modi funktionieren.
   ===================================================================== */

:root {
  --bg:            #f4f6fb;
  --surface:       #ffffff;
  --surface-2:     #f9fafb;
  --text:          #0f172a;
  --muted:         #6b7280;
  --border:        #e5e7eb;

  --accent:        #2563eb;
  --accent-hover:  #1d4ed8;
  --secondary:     #64748b;
  --secondary-hover:#475569;
  --danger:        #ef4444;
  --danger-hover:  #dc2626;

  --warn-bg:       #fef3c7;
  --warn-border:   #fcd34d;

  --shadow:        0 4px 14px rgba(16,24,40,.06);
  --shadow-lg:     0 10px 30px rgba(16,24,40,.10);
  --radius:        14px;
  --radius-sm:     9px;

  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

html[data-theme="dark"] {
  --bg:            #0b1220;
  --surface:       #161f32;
  --surface-2:     #1e293b;
  --text:          #e5edf7;
  --muted:         #94a3b8;
  --border:        #2d3a52;

  --accent:        #3b82f6;
  --accent-hover:  #60a5fa;
  --secondary:     #475569;
  --secondary-hover:#64748b;
  --danger:        #ef4444;
  --danger-hover:  #f87171;

  --warn-bg:       #3a2c08;
  --warn-border:   #a16207;

  --shadow:        0 4px 18px rgba(0,0,0,.45);
  --shadow-lg:     0 12px 34px rgba(0,0,0,.55);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
  -webkit-text-size-adjust: 100%;
  transition: background .2s ease, color .2s ease;
}

h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.2rem; margin: 0 0 .75rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 .5rem; }

a { color: var(--accent); }

img { max-width: 100%; }

hr { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }

/* ---------- Seiten-Container ---------- */
.page {
  max-width: 1680px;
  margin: 0 auto;
  padding: 1.5rem clamp(1rem, 3vw, 2.5rem) 3rem;
}

/* ---------- Kopfzeile / Navigation ---------- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: .6rem clamp(1rem, 3vw, 2.5rem);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.app-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex: 0 0 auto;
}
.app-brand img {
  height: 40px;
  width: auto;
  display: block;
}

.app-nav {
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  min-width: 0;
}

.theme-toggle {
  margin-left: auto;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  font-size: 1.05rem;
  line-height: 1;
  padding: .45rem .6rem;
  color: var(--text);
}
.theme-toggle:hover { border-color: var(--accent); }

/* ---------- Hauptnavigation: Pillen-Gruppe ---------- */
.nav-pills {
  display: flex;
  gap: 4px;
  background: var(--surface-2);
  padding: 4px;
  border-radius: 12px;
  overflow-x: auto;
  min-width: 0;
  scrollbar-width: none;
}
.nav-pills::-webkit-scrollbar { display: none; }
.nav-pills .pill {
  color: var(--text);
  text-decoration: none;
  font-size: .95rem;
  padding: .45rem .95rem;
  border-radius: 9px;
  white-space: nowrap;
  transition: background .15s ease, color .15s ease;
}
.nav-pills .pill:hover:not(.active) { background: color-mix(in srgb, var(--text) 9%, transparent); }
.nav-pills .pill.active { background: var(--accent); color: #fff; }

/* ---------- Unter-Tabs des aktiven Bereichs ---------- */
.app-subnav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.subnav-inner {
  max-width: 1680px;
  margin: 0 auto;
  padding: .55rem clamp(1rem, 3vw, 2.5rem);
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.subnav-inner::-webkit-scrollbar { display: none; }
.subtab {
  color: var(--text);
  background: var(--surface-2);
  text-decoration: none;
  font-size: .88rem;
  padding: .4rem .9rem;
  border-radius: 999px;
  white-space: nowrap;
  transition: background .15s ease, color .15s ease;
}
.subtab:hover { background: color-mix(in srgb, var(--text) 9%, transparent); }
.subtab.active { background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); font-weight: 500; }

/* Aktueller-Bereich-Schalter (Dropdown-Auslöser) – nur mobil sichtbar */
.app-current {
  display: none;
  align-items: center;
  gap: .4rem;
  background: none;
  border: none;
  padding: .2rem 0;
  color: var(--text);
  font: inherit;
  cursor: pointer;
}
.app-current-label { font-size: 1.4rem; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.app-current-caret { flex: 0 0 auto; width: 18px; height: 18px; color: var(--muted); transition: transform .2s ease; }
.app-current.open .app-current-caret { transform: rotate(180deg); }

@media (max-width: 760px) {
  /* Im freien Kopfbereich: aktueller Bereich + Dropdown-Auslöser */
  .app-current { display: flex; flex: 1 1 auto; min-width: 0; }

  /* Hauptnavigation als aufklappbares Panel unter der Kopfzeile */
  .app-nav {
    order: 3;
    flex-basis: 100%;
    display: none;
    margin-top: .5rem;
  }
  .app-nav.open { display: block; }

  .nav-pills {
    flex-direction: column;
    gap: 4px;
    background: transparent;
    padding: 0;
    border-radius: 0;
    overflow: visible;
  }
  .nav-pills .pill {
    text-align: left;
    padding: .8rem .9rem;
    border-radius: 9px;
    border: 1px solid var(--border);
  }
  .nav-pills .pill.active { border-color: var(--accent); }

  /* Seitenüberschrift mobil optisch ausblenden – der Kopf zeigt den Titel bereits.
     (Für Screenreader bleibt sie erhalten.) */
  .page > h1 {
    position: absolute;
    width: 1px; height: 1px;
    margin: -1px; padding: 0; border: 0;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
  }
}

/* ---------- Fußzeile ---------- */
.app-footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  padding: 1.25rem;
  text-align: center;
  font-size: .9rem;
}
.app-footer a { color: var(--muted); text-decoration: none; }
.app-footer a:hover { color: var(--accent); }

/* ---------- Buttons ---------- */
button {
  font-family: inherit;
  padding: .6rem .95rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: background .15s ease;
}
button:hover { background: var(--accent-hover); }

.btn,
.btn-primary,
.btn-secondary,
.btn-danger {
  display: inline-block;
  padding: .6rem .95rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  transition: filter .15s ease, background .15s ease;
}
.btn:hover,
.btn-primary:hover { background: var(--accent-hover); }

.btn-secondary { background: var(--secondary); }
.btn-secondary:hover { background: var(--secondary-hover); }

.btn-danger { background: var(--danger); }
.btn-danger:hover { background: var(--danger-hover); }

.btn-row { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; }

/* ---------- Formulare ---------- */
label { font-weight: 600; display: block; margin-bottom: .4rem; }

input[type="text"],
input[type="number"],
input[type="password"],
input[type="email"],
input[type="file"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: .6rem .7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  background: var(--surface);
  color: var(--text);
  box-sizing: border-box;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

/* Formular-Karte (für Add/Edit-Seiten) */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 640px;
  margin: 0 auto;
  box-shadow: var(--shadow);
}
.form-card label { margin-top: 1rem; }
.form-card label:first-of-type { margin-top: 0; }

/* ---------- Karten / KPI (Startseite) ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.card .title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  padding-bottom: .4rem;
  border-bottom: 1px solid var(--border);
}
.card .title h2 { margin: 0; font-weight: 600; }
.card .content { display: flex; flex-direction: column; gap: .9rem; }

.card-head {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid var(--border);
}
.card-head img { width: 44px; height: 44px; object-fit: contain; flex: 0 0 auto; }
.card-head h2 { margin: 0; font-weight: 600; }

/* Statistik-Kacheln: Wert groß oben, Label darunter; brechen sauber um.
   auto-fit = auf schmalen Karten 1-2 pro Reihe, auf breiten alle nebeneinander. */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: .6rem;
}
.stat {
  min-width: 0;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .6rem .7rem;
  text-decoration: none;
  color: inherit;
  display: block;
}
a.stat:hover { border-color: var(--accent); }
.stat-val {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  word-break: break-word;
  line-height: 1.2;
}
.stat-lbl { display: block; font-size: .85rem; color: var(--muted); margin-top: .15rem; }

/* ---------- Listen / Kacheln (Lok & Wagen) ---------- */
.top-bar,
.filter-bar { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 1rem; }

.filter-form { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; }
.filter-form select,
.filter-form input { width: auto; min-width: 150px; }

.lok-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.lok-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: transform .12s ease, box-shadow .12s ease;
}
.lok-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.lok-card img { width: 100%; height: 160px; object-fit: cover; background: var(--surface-2); }
.lok-info { padding: .9rem; }
.lok-info div { margin-bottom: .35rem; font-size: .95rem; }

/* ---------- Tabelle ---------- */
.lok-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.lok-table th,
.lok-table td {
  padding: .65rem .7rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: .95rem;
}
.lok-table th { background: var(--surface-2); color: var(--muted); font-weight: 600; }
.lok-table tbody tr { transition: background .12s ease; }
.lok-table tbody tr:hover { background: var(--surface-2); }
.lok-table img { border-radius: 6px; }

/* Sichtbarkeit Mobile/Desktop */
.mobile-only { display: block; }
.desktop-only { display: none; }
@media (min-width: 768px) {
  .mobile-only { display: none; }
  .desktop-only { display: table; }
}

/* ---------- Paginierung ---------- */
.pagination { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: 1.25rem; align-items: center; }
.pagination a {
  padding: .45rem .75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text);
}
.pagination a:hover { border-color: var(--accent); }
.pagination .current { background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 700; }
.pagination .dots { padding: .45rem .25rem; color: var(--muted); }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
}
.badge-digital { background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent); }
.badge-analog  { background: var(--surface-2); color: var(--muted); }

/* ---------- Detailseite (lok_view) ---------- */
.container {
  max-width: 1400px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.info-flex {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
}
.lok-image { width: 100%; }
.lok-image > a > img {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-sm);
  display: block;
  margin: 0 auto;
}
@media (min-width: 768px) {
  .info-flex { flex-direction: row; align-items: flex-start; }
  .lok-image { max-width: 42%; }
  .details-grid { flex: 1; }
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: .9rem;
  width: 100%;
}
@media (min-width: 768px) {
  .details-grid { grid-template-columns: repeat(3, 1fr); }
}

.detail-item,
.detail-item-important {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: .8rem;
  border-radius: var(--radius-sm);
}
.detail-item-important { background: var(--warn-bg); border-color: var(--warn-border); }
.detail-item .label,
.detail-item-important .label { font-weight: 700; margin-bottom: .25rem; color: var(--muted); }

/* Zusatzfotos */
.thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin: .9rem auto 0;
  max-width: 420px;
  justify-content: center;
}
.thumb-figure { margin: 0; width: 78px; text-align: center; }
.thumbs .thumb {
  width: 78px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid var(--border);
}
.thumb-figure figcaption { font-size: .72rem; color: var(--muted); margin-top: .2rem; word-break: break-word; }

/* generische Tabelle auf Detailseite */
.container table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
.container table th,
.container table td { border: 1px solid var(--border); padding: .6rem; font-size: .95rem; word-break: break-word; }
.container table th { background: var(--surface-2); }

textarea { font-family: inherit; }

/* ---------- Galerie (gallery_lok / gallery_wagen / dcc) ---------- */
/* Raster füllt die volle Seitenbreite: mehr Kacheln pro Reihe auf großen Schirmen. */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}
.gallery-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
  text-align: center;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease;
}
.gallery-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.gallery-card img { width: 100%; height: auto; display: block; }
.gallery-card .nummer { padding: .5rem; font-weight: 600; font-size: .9rem; }

/* DCC-Adresskachel */
.dcc-addr { font-size: 1.5rem; font-weight: 700; padding: .5rem 0; color: #fff; }

/* ---------- Tabellen-Summenzeile / Warnzelle (overview) ---------- */
.lok-table .sum-row td { background: var(--surface-2); font-weight: 700; }
.cell-warn { background: color-mix(in srgb, var(--danger) 20%, transparent) !important; }

/* ---------- Hinweis-Boxen (account u.a.) ---------- */
.alert { margin: 1rem 0; padding: .75rem 1rem; border-radius: var(--radius-sm); font-weight: 500; border: 1px solid var(--border); }
.alert-ok   { background: color-mix(in srgb, #16a34a 16%, transparent); color: #15803d; border-color: color-mix(in srgb, #16a34a 35%, transparent); }
.alert-err  { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger-hover); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }

/* ---------- Login ---------- */
.login-wrap { min-height: 80vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 1.75rem;
  text-align: center;
}
.login-card img { max-width: 260px; margin-bottom: .5rem; }
.login-card .error { color: var(--danger); margin-bottom: .75rem; }
.login-card input { margin-bottom: .75rem; }