/* =========================================================
   Digitale Hausakte – Basis-Styles
   Keine externen Fonts/CDNs (CSP: nur 'self'). System-Schriften.
   ========================================================= */

:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #f8f9fb;
  --border: #e3e6eb;
  --text: #1b1f26;
  --text-2: #5b6472;
  --text-3: #8a93a1;
  --accent: #1f5f8b;
  --accent-soft: #e6eff6;
  --accent-text: #ffffff;

  --ok: #2f7d4f;
  --warn: #a8640a;
  --warn-soft: #fbf1e1;
  --danger: #b4372f;
  --danger-soft: #fbe9e7;

  --tone-blue-bg: #e6eff6;   --tone-blue-fg: #1f5f8b;
  --tone-green-bg: #e5f2ea;  --tone-green-fg: #2f7d4f;
  --tone-amber-bg: #fbf1e1;  --tone-amber-fg: #a8640a;
  --tone-rose-bg: #f8e8ea;   --tone-rose-fg: #a3404f;

  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(20, 24, 31, .05), 0 1px 1px rgba(20, 24, 31, .03);
  --sidebar-w: 232px;
  --topbar-h: 60px;
  --tabbar-h: 64px;

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

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --surface: #1c2027;
    --surface-2: #222730;
    --border: #2e343e;
    --text: #e8ebf0;
    --text-2: #a4adba;
    --text-3: #7b8594;
    --accent: #6aa8d8;
    --accent-soft: #1f3343;
    --accent-text: #0e1a24;
    --ok: #6cc08d;
    --warn: #e0a85a;
    --warn-soft: #3a2d1a;
    --danger: #f08378;
    --danger-soft: #3d2120;
    --tone-blue-bg: #1f3343;  --tone-blue-fg: #8cc0e6;
    --tone-green-bg: #1d3427; --tone-green-fg: #7fcf9d;
    --tone-amber-bg: #3a2d1a; --tone-amber-fg: #e8b46a;
    --tone-rose-bg: #3a2228;  --tone-rose-fg: #e897a4;
    --shadow: none;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.25; }
h1 { font-size: 1.6rem; font-weight: 650; letter-spacing: -.01em; }
h2 { font-size: 1.02rem; font-weight: 620; }
p { margin: 0; }
.muted { color: var(--text-2); }
.small { font-size: .85rem; }
.link { color: var(--accent); }
.link:hover { text-decoration: underline; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

.icon { width: 20px; height: 20px; flex: none; }
.icon-sm { width: 15px; height: 15px; }
.icon-xl { width: 40px; height: 40px; color: var(--text-3); }

/* ---------- Grundgerüst ---------- */
.shell {
  min-height: 100vh; display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  /* Sidebar-Fläche läuft bis zum Seitenende durch */
  background: linear-gradient(to right, var(--surface) calc(var(--sidebar-w) - 1px), var(--border) calc(var(--sidebar-w) - 1px), var(--border) var(--sidebar-w), transparent var(--sidebar-w));
}

.sidebar {
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; gap: 4px;
  padding: 18px 14px;
  background: var(--surface);
  border-right: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 680; font-size: 1.05rem; padding: 4px 8px 18px; }
.brand-mark {
  display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px;
  background: var(--accent); color: var(--accent-text);
}
.brand-mark .icon { width: 18px; height: 18px; }
.side-nav { display: flex; flex-direction: column; gap: 2px; }
.side-link {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 10px; border-radius: var(--radius-sm);
  color: var(--text-2); font-weight: 520;
}
.side-link:hover { background: var(--surface-2); color: var(--text); }
.side-link.is-active { background: var(--accent-soft); color: var(--accent); }
.side-footer { margin-top: auto; border-top: 1px solid var(--border); padding-top: 10px; }

.main { min-width: 0; display: flex; flex-direction: column; }

.topbar {
  position: sticky; top: 0; z-index: 10;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 16px;
  padding: 0 28px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.search { position: relative; flex: 1; max-width: 520px; }
.search-icon { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--text-3); width: 18px; height: 18px; }
.search input {
  width: 100%; height: 38px; padding: 0 12px 0 36px;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--surface); color: var(--text); font: inherit;
}
.search input::placeholder { color: var(--text-3); }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.icon-btn {
  position: relative; display: grid; place-items: center;
  width: 38px; height: 38px; border-radius: 10px; color: var(--text-2);
}
.icon-btn:hover { background: var(--surface); color: var(--text); }
.badge-dot {
  position: absolute; top: 3px; right: 2px; min-width: 17px; height: 17px; padding: 0 4px;
  border-radius: 9px; background: var(--danger); color: #fff;
  font-size: .7rem; font-weight: 700; line-height: 17px; text-align: center;
}

.user-menu { position: relative; }
.user-menu summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; gap: 9px; padding: 4px 8px 4px 4px; border-radius: 10px;
}
.user-menu summary::-webkit-details-marker { display: none; }
.user-menu summary:hover { background: var(--surface); }
.avatar {
  display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: .85rem;
}
.user-name { font-weight: 550; font-size: .92rem; }
.menu {
  position: absolute; right: 0; top: calc(100% + 6px); min-width: 230px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .12); padding: 6px;
}
.menu a, .menu button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 9px 10px; border: 0; border-radius: var(--radius-sm);
  background: none; color: var(--text); font: inherit; text-align: left; cursor: pointer;
}
.menu a:hover, .menu button:hover { background: var(--surface-2); }
.menu form { margin: 0; }

.content { width: 100%; max-width: 1240px; padding: 28px; display: flex; flex-direction: column; gap: 22px; }

.tabbar { display: none; }

/* ---------- Brotkrumen ---------- */
.breadcrumb { display: flex; align-items: center; min-width: 0; }
.breadcrumb-list {
  display: flex; align-items: center; gap: 4px; min-width: 0;
  list-style: none; margin: 0; padding: 0; flex-wrap: nowrap;
}
.breadcrumb-item { display: flex; align-items: center; gap: 4px; min-width: 0; }
.breadcrumb-item a, .breadcrumb-item span[aria-current] {
  display: inline-block; max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  font-size: .85rem; font-weight: 560; color: var(--text-2);
}
.breadcrumb-item a:hover { color: var(--accent); text-decoration: underline; }
.breadcrumb-item:last-child span[aria-current] { color: var(--text); font-weight: 620; }
.breadcrumb-sep { color: var(--text-3); flex: none; }
.breadcrumb-back { display: none; color: var(--text-2); font-size: .9rem; font-weight: 560; }
.breadcrumb-back:hover { color: var(--accent); }

/* ---------- Bausteine ---------- */
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.page-head > div { min-width: 0; }
.page-head h1 { overflow-wrap: anywhere; }
.page-head .muted { margin-top: 2px; }
.section-title { margin-bottom: 12px; }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px 20px;
}
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.card.empty { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; padding: 48px 20px; }
.empty-line { display: flex; gap: 10px; align-items: flex-start; color: var(--text-2); padding: 8px 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 16px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  font: inherit; font-weight: 560; cursor: pointer;
}
.btn:hover { background: var(--surface-2); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-primary:hover { background: var(--accent); filter: brightness(1.08); }

.chip {
  flex: none; padding: 3px 9px; border-radius: 999px;
  font-size: .78rem; font-weight: 600; white-space: nowrap;
  background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border);
}

/* ---------- Kennzahlen ---------- */
.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.kpi {
  display: flex; flex-direction: column; gap: 4px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px 18px;
  transition: border-color .15s;
}
.kpi:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.kpi-label { display: flex; align-items: center; gap: 8px; color: var(--text-2); font-size: .86rem; font-weight: 550; }
.kpi-label .icon { width: 17px; height: 17px; }
.kpi-value { font-size: 1.75rem; font-weight: 680; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.kpi-sub { color: var(--text-2); font-size: .82rem; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.kpi-attention .kpi-label { color: var(--warn); }

/* ---------- Fristen-Zeitleiste ---------- */
.grid-2 { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 14px; align-items: start; }
.timeline { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.timeline li + li { border-top: 1px solid var(--border); }
.timeline-item { display: flex; align-items: center; gap: 12px; padding: 11px 4px; border-radius: var(--radius-sm); }
.timeline-item:hover { background: var(--surface-2); }
.timeline-icon {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px;
  background: var(--surface-2); color: var(--text-2); flex: none;
}
.timeline-icon .icon { width: 18px; height: 18px; }
.timeline-text { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.timeline-title { font-weight: 560; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.timeline-meta { color: var(--text-2); font-size: .82rem; }
.timeline-item.is-soon .chip { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.timeline-item.is-urgent .chip,
.timeline-item.is-overdue .chip { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.timeline-item.is-urgent .timeline-icon,
.timeline-item.is-overdue .timeline-icon { background: var(--danger-soft); color: var(--danger); }

/* ---------- Sensoren ---------- */
.sensors { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.sensor { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; padding: 11px 2px; }
.sensor + .sensor { border-top: 1px solid var(--border); }
.sensor-room { font-weight: 560; }
.sensor-values { display: flex; align-items: baseline; gap: 14px; font-variant-numeric: tabular-nums; }
.sensor-temp { font-size: 1.15rem; font-weight: 650; }
.sensor-hum { display: inline-flex; align-items: center; gap: 4px; color: var(--text-2); }
.sensor-alert { grid-column: 1 / -1; display: inline-flex; align-items: center; gap: 6px; font-size: .82rem; color: var(--warn); }
.sensor.is-stale .sensor-values { color: var(--text-3); }
.sensor.is-stale .sensor-alert { color: var(--text-3); }

/* ---------- Bereiche ---------- */
.areas { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.area {
  display: flex; flex-direction: column; gap: 6px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px;
  transition: border-color .15s, transform .15s;
}
.area:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); transform: translateY(-1px); }
.area-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; margin-bottom: 6px; }
.tone-blue  { background: var(--tone-blue-bg);  color: var(--tone-blue-fg); }
.tone-green { background: var(--tone-green-bg); color: var(--tone-green-fg); }
.tone-amber { background: var(--tone-amber-bg); color: var(--tone-amber-fg); }
.tone-rose  { background: var(--tone-rose-bg);  color: var(--tone-rose-fg); }
.area-title { font-weight: 620; }
.area-meta { color: var(--text-2); font-size: .88rem; }
.area-detail { display: flex; flex-direction: column; gap: 3px; margin-top: 6px; padding-top: 10px; border-top: 1px solid var(--border); font-size: .84rem; color: var(--text-2); }
.area-detail span { display: flex; justify-content: space-between; gap: 8px; }
.area-detail b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }

.budget { display: flex; flex-direction: column; gap: 6px; margin-top: 6px; padding-top: 10px; border-top: 1px solid var(--border); }
.budget-bar { appearance: none; -webkit-appearance: none; width: 100%; height: 7px; border: 0; border-radius: 4px; background: var(--surface-2); overflow: hidden; }
.budget-bar::-webkit-progress-bar { background: var(--surface-2); border-radius: 4px; }
.budget-bar::-webkit-progress-value { background: var(--tone-amber-fg); border-radius: 4px; }
.budget-bar::-moz-progress-bar { background: var(--tone-amber-fg); border-radius: 4px; }
.budget-bar.is-tight::-webkit-progress-value { background: var(--danger); }
.budget-bar.is-tight::-moz-progress-bar { background: var(--danger); }
.budget-text { font-size: .84rem; color: var(--text-2); font-variant-numeric: tabular-nums; }

/* ---------- Login ---------- */
body.guest { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login { width: 100%; max-width: 380px; }
.login-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  box-shadow: var(--shadow); padding: 28px; display: flex; flex-direction: column; gap: 16px;
}
.brand-lg { padding: 0 0 4px; }
.form { display: flex; flex-direction: column; gap: 14px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-weight: 550; font-size: .9rem; }
.form input {
  height: 44px; padding: 0 12px; border: 1px solid var(--border); border-radius: 10px;
  background: var(--surface); color: var(--text); font: inherit; font-size: 16px; /* verhindert iOS-Zoom */
}
.form .btn { height: 44px; margin-top: 4px; }
.notice { padding: 10px 12px; border-radius: var(--radius-sm); background: var(--accent-soft); color: var(--accent); font-size: .9rem; }
.notice-error { background: var(--danger-soft); color: var(--danger); }
.login-hint { color: var(--text-3); font-size: .82rem; text-align: center; }

/* ---------- Formulare (M2) ---------- */
.form select, .form textarea {
  padding: 0 12px; border: 1px solid var(--border); border-radius: 10px;
  background: var(--surface); color: var(--text); font: inherit; font-size: 16px;
}
.form select { height: 44px; }
.form textarea { height: auto; min-height: 88px; padding: 10px 12px; resize: vertical; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 16px; }
.form-actions { display: flex; align-items: center; gap: 10px; margin-top: 4px; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--danger); }
.field-error { color: var(--danger); font-size: .82rem; }
.field-hint { color: var(--text-2); font-size: .82rem; }
.field-checkbox { flex-direction: row; align-items: center; gap: 8px; }
.field-checkbox input { width: 18px; height: 18px; flex: none; }
.btn-danger { background: var(--danger-soft); border-color: transparent; color: var(--danger); }
.btn-danger:hover { filter: brightness(.96); }

/* ---------- Listen (Räume, Kontakte, Benutzer) ---------- */
.list { display: flex; flex-direction: column; border-top: 1px solid var(--border); }
.list-row { display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--border); }
.list-link { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; padding: 14px 6px; color: var(--text); border-radius: var(--radius-sm); }
a.list-link:hover { background: var(--surface-2); }
.list-row-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.list-row-meta { color: var(--text-2); font-size: .85rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.list-actions { display: flex; gap: 4px; flex: none; padding-right: 4px; }
.btn-icon-sm {
  width: 32px; height: 32px; border-radius: 8px; display: grid; place-items: center;
  border: 1px solid var(--border); background: var(--surface); color: var(--text-2); cursor: pointer;
}
.btn-icon-sm:hover { background: var(--surface-2); color: var(--text); }
.btn-icon-sm:disabled { opacity: .35; cursor: default; }
.btn-icon-sm:disabled:hover { background: var(--surface); color: var(--text-2); }
.btn-icon-sm .icon { width: 16px; height: 16px; }
.icon-rot-n90 { transform: rotate(-90deg); }
.icon-rot-90 { transform: rotate(90deg); }

/* ---------- Filter-Chips (Kontakte) ---------- */
.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-chip {
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text-2); font-size: .85rem; font-weight: 560;
}
.filter-chip:hover { background: var(--surface-2); }
.filter-chip.is-active { background: var(--accent-soft); color: var(--accent); border-color: transparent; }

/* ---------- Detailseite Kontakt ---------- */
.detail-list { display: flex; flex-direction: column; gap: 10px; margin: 0; }
.detail-list > div { display: flex; gap: 14px; padding: 6px 0; border-bottom: 1px solid var(--border); }
.detail-list > div:last-child { border-bottom: 0; }
.detail-list dt { flex: 0 0 140px; color: var(--text-2); font-size: .88rem; margin: 0; }
.detail-list dd { margin: 0; flex: 1; min-width: 0; }

/* ---------- Einstellungen-Kacheln ---------- */
.tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.tile {
  display: flex; flex-direction: column; gap: 6px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px; color: var(--text);
  transition: border-color .15s, transform .15s;
}
.tile:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); transform: translateY(-1px); }
.tile-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; margin-bottom: 4px; }
.tile-title { font-weight: 620; }
.tile-meta { color: var(--text-2); font-size: .88rem; }
.tile.is-disabled { opacity: .55; cursor: default; }
.tile.is-disabled:hover { transform: none; border-color: var(--border); }
@media (max-width: 1180px) { .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .tiles { grid-template-columns: minmax(0, 1fr); } .detail-list dt { flex: 0 0 110px; } }

/* ---------- Responsiv ---------- */
@media (max-width: 1180px) {
  .areas { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-2 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
  .shell { grid-template-columns: minmax(0, 1fr); background: none; }
  .sidebar { display: none; }
  .topbar { padding: 0 16px; gap: 10px; }
  .user-name { display: none; }
  .breadcrumb-list { display: none; }
  .breadcrumb-back { display: inline-flex; align-items: center; gap: 4px; }
  .content { padding: 18px 16px calc(var(--tabbar-h) + 24px + env(safe-area-inset-bottom)); gap: 18px; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .kpi { padding: 14px; }
  .kpi-value { font-size: 1.45rem; }
  h1 { font-size: 1.35rem; }

  .tabbar {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
    display: grid; grid-template-columns: repeat(5, 1fr);
    height: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    background: var(--surface); border-top: 1px solid var(--border);
  }
  .tab {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
    color: var(--text-3); font-size: .7rem; font-weight: 560;
  }
  .tab.is-active { color: var(--accent); }
}

@media (max-width: 520px) {
  .areas { grid-template-columns: minmax(0, 1fr); }
  .timeline-item .chip { font-size: .72rem; padding: 2px 7px; }
  .form-grid { grid-template-columns: minmax(0, 1fr); }
  .detail-list > div { flex-direction: column; gap: 2px; }
  .detail-list dt { flex: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}