:root{
  --bg:#EEF2F8; --page-bg:#DCE4F0; --surface:#FFFFFF; --surface-alt:#F3F6FB;
  --border:#DCE3EE; --text:#12203D; --text-muted:#5B6B85;
  --primary:#1B4B8F; --primary-light:#3E6FB0; --primary-tint:#E6EDF8;
  --positive:#1C8A5D; --positive-bg:#E4F5EC; --negative:#C1432E; --negative-bg:#FBE7E3;
  --warning:#B8862E; --warning-bg:#FBF1E0;
  --shadow: 0 20px 40px -20px rgba(18,32,61,0.25);
  --fab-border: rgba(255,255,255,.45);
}
[data-theme="dark"]{
  --bg:#0D1420; --page-bg:#070B12; --surface:#16202F; --surface-alt:#1C2838;
  --border:#26344A; --text:#E7EEF8; --text-muted:#8494AC;
  --primary:#4C86D6; --primary-light:#6EA0E8; --primary-tint:rgba(76,134,214,0.14);
  --positive:#3FCB8D; --positive-bg:rgba(63,203,141,0.12);
  --negative:#E5695A; --negative-bg:rgba(229,105,90,0.12);
  --warning:#E0AE55; --warning-bg:rgba(224,174,85,0.12);
  --shadow: 0 20px 40px -20px rgba(0,0,0,0.5);
  --fab-border: rgba(255,255,255,.22);
}
*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;min-height:100dvh;background:var(--bg);color:var(--text);
  font-family:'Inter',system-ui,sans-serif;
}
button, input, select, textarea{ font-family:inherit; }

/* App-Shell: fuellt auf dem Handy den ganzen Bildschirm aus (kein Handy-Rahmen).
   Feste Hoehe + overflow:hidden statt min-height, damit die Huelle nie ueber den
   Viewport hinauswaechst — nur .screen (overflow-y:auto) soll intern scrollen,
   waehrend .app-header/.bottom-nav (flex-shrink:0) fix stehen bleiben. */
.app-shell{
  height:100dvh;overflow:hidden;display:flex;flex-direction:column;background:var(--surface);
}

/* .app-header steckt (anders als .bottom-nav) INNERHALB von .screen, dem
   Scroll-Container — deshalb sticky statt nur flex-shrink:0, sonst scrollt er
   mit dem Inhalt weg. background noetig, damit darunter liegender Inhalt beim
   Scrollen nicht durchscheint. */
.app-header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;
  border-bottom:1px solid var(--border);flex-shrink:0;margin-bottom:25px;
  position:sticky;top:0;z-index:10;background:var(--surface);}
.app-header .brand{font-weight:800;font-size:19px;color:var(--text);letter-spacing:-0.01em;}
.app-header .brand span{color:var(--primary);}
.app-header .title{font-weight:700;font-size:15.5px;color:var(--text);}
.icon-btn{width:36px;height:36px;border-radius:11px;border:1px solid var(--border);background:var(--surface-alt);
  display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text);flex-shrink:0;}
.icon-btn svg{width:17px;height:17px;}

.screen{flex:1;display:none;flex-direction:column;overflow-y:auto;padding-bottom:8px;}
.screen.active{display:flex;}

/* Formulare */
.field{margin-bottom:14px;}
.field label{display:block;font-size:11.5px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px;}
.field input, .field select, .field textarea{width:100%;padding:11px 12px;border-radius:11px;border:1px solid var(--border);
  background:var(--surface-alt);color:var(--text);font-size:13.5px;outline:none;}
.field textarea{resize:none;min-height:56px;}
.field select:disabled{opacity:.6;cursor:default;}
.save-btn{width:100%;margin-top:4px;background:var(--primary);color:#fff;border:none;border-radius:13px;padding:14px;
  font-size:14.5px;font-weight:700;cursor:pointer;box-shadow:0 10px 22px -10px rgba(27,75,143,0.6);}
.save-btn:disabled{opacity:.6;cursor:default;}
.link-btn{background:none;border:none;color:var(--primary);font-size:12.5px;font-weight:600;cursor:pointer;padding:6px;}

/* Login / Registrierung */
.auth-screen{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--page-bg);}
.auth-card{width:100%;max-width:360px;background:var(--surface);border-radius:20px;box-shadow:var(--shadow);
  padding:32px 24px;border:1px solid var(--border);}
.auth-card .brand{text-align:center;font-weight:800;font-size:24px;color:var(--text);margin-bottom:22px;}
.auth-card .brand span{color:var(--primary);}
.auth-error{background:var(--negative-bg);color:var(--negative);border:1px solid var(--negative);
  border-radius:11px;padding:10px 12px;font-size:12.5px;font-weight:600;margin-bottom:14px;}
.auth-form{display:none;}
.auth-form.active{display:block;}
.auth-toggle-row{text-align:center;margin-top:10px;}
.reset-password-hint{font-size:12.5px;color:var(--text-muted);line-height:1.5;text-align:center;margin-bottom:18px;}

/* Banner bei aktiver Admin-Impersonation ("Login als Nutzer") -- eigenes Design
   angelehnt an .due-banner (gleiche Warnfarben), aber als Kopfzeile ueber der
   gesamten Ansicht statt innerhalb des Dashboards. */
.impersonation-banner{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 20px;background:var(--warning-bg);border-bottom:1px solid var(--warning);
  color:var(--warning);font-size:12.5px;font-weight:600;flex-shrink:0;}
.impersonation-banner button{background:none;border:1px solid var(--warning);color:var(--warning);
  border-radius:8px;padding:6px 12px;font-size:12px;font-weight:700;cursor:pointer;flex-shrink:0;white-space:nowrap;}
.impersonation-banner button:hover{background:var(--warning);color:#fff;}

/* Dezenter Hinweis, wenn offline mit zwischengespeicherten Daten gearbeitet wird
   (Etappe 7, Schritt 2) -- bewusst neutral/gedeckt statt in Warnfarben, da kein
   Fehlerzustand, sondern ein normal nutzbarer Modus. */
.offline-banner{display:flex;align-items:center;gap:8px;
  padding:9px 20px;background:var(--surface-alt);border-bottom:1px solid var(--border);
  color:var(--text-muted);font-size:12px;font-weight:600;flex-shrink:0;}
.offline-banner svg{width:15px;height:15px;flex-shrink:0;}

.hidden{display:none !important;}

/* ===== App-Inhalt (Dashboard / Kontakte / Kontakt-Detail) ===== */

/* Sticky-Offset fuer Elemente, die sich direkt unter dem fixierten .app-header
   anschliessen sollen (kein Sprung/keine Luecke beim Feststehen). Ergibt sich aus
   der tatsaechlichen Boxhoehe des Headers: 36px (Icon-Btn, die groesste seiner
   Kinder) + 14px+14px padding + 1px border-bottom = 65px, plus dessen eigenes
   margin-bottom von 25px = 90px Gesamtabstand vom oberen Rand des Scroll-
   Containers (.screen). So bleibt der sichtbare Abstand zwischen Header und
   diesem Element beim Sticken exakt derselbe wie im ungescrollten Zustand. */
.balance-card{margin:2px 20px 12px;padding:22px 20px;border-radius:20px;
  background:linear-gradient(150deg, var(--primary), var(--primary-light));color:#fff;
  box-shadow:0 14px 30px -12px rgba(27,75,143,0.55);
  position:sticky;top:90px;z-index:9;}
.balance-card .label{font-size:12px;text-transform:uppercase;letter-spacing:.09em;opacity:.85;font-weight:600;}
.balance-card .amount{font-family:'IBM Plex Mono',monospace;font-size:34px;font-weight:600;margin:6px 0 16px;font-variant-numeric: tabular-nums;}
.balance-split{display:flex;gap:10px;}
.split-item{flex:1;background:rgba(255,255,255,0.14);border-radius:13px;padding:10px 12px;}
.split-item .t{font-size:11px;opacity:.85;font-weight:600;}
.split-item .v{font-family:'IBM Plex Mono',monospace;font-size:16px;font-weight:600;margin-top:3px;font-variant-numeric: tabular-nums;}

.due-banner{margin:0 20px 16px;padding:12px 14px;border-radius:14px;background:var(--warning-bg);
  border:1px solid var(--warning);display:flex;align-items:center;gap:10px;cursor:pointer;}
.due-banner svg{width:18px;height:18px;color:var(--warning);flex-shrink:0;}
.due-banner .txt{flex:1;font-size:12.5px;font-weight:600;color:var(--warning);}
.due-banner .chev{width:15px;height:15px;color:var(--warning);}

.section-title{padding:4px 20px 8px;display:flex;align-items:center;justify-content:space-between;}
.section-title h3{font-size:14px;margin:0;color:var(--text);}
.section-title .see-all{font-size:12px;color:var(--primary);font-weight:600;cursor:pointer;}

.tx-list{padding:0 20px;display:flex;flex-direction:column;gap:2px;}
.tx-row{display:flex;align-items:center;gap:12px;padding:11px 4px;background:var(--surface);
  border-bottom:1px solid var(--border);cursor:pointer;}
.tx-row:last-child{border-bottom:none;}

/* Wisch-Geste auf dem Dashboard: nach links wischen = Bearbeiten/Löschen */
.tx-swipe{position:relative;overflow:hidden;border-bottom:1px solid var(--border);}
.tx-swipe:last-child{border-bottom:none;}
.tx-swipe .tx-row{border-bottom:none;cursor:grab;touch-action:pan-y;position:relative;}
.tx-actions{position:absolute;top:0;right:0;bottom:0;display:flex;width:140px;}
.tx-actions button{flex:1;border:none;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:10px;font-weight:600;color:#fff;cursor:pointer;}
.tx-actions button svg{width:16px;height:16px;}
.tx-actions .edit-btn{background:var(--primary-light);}
.tx-actions .delete-btn{background:var(--negative);}
.avatar{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:#fff;flex-shrink:0;}
.tx-info{flex:1;min-width:0;}
.tx-info .name{font-size:13.5px;font-weight:600;color:var(--text);}
.tx-info .meta{font-size:11.5px;color:var(--text-muted);margin-top:1px;display:flex;gap:6px;align-items:center;}
.tag{font-size:10px;font-weight:600;padding:1px 7px;border-radius:20px;background:var(--surface-alt);color:var(--text-muted);border:1px solid var(--border);}
.tx-amount{font-family:'IBM Plex Mono',monospace;font-size:14px;font-weight:600;font-variant-numeric: tabular-nums;text-align:right;flex-shrink:0;}
.pos{color:var(--positive);}
.neg{color:var(--negative);}

.empty-state{padding:32px 20px;text-align:center;color:var(--text-muted);font-size:13px;}
.loading-state{padding:32px 20px;text-align:center;color:var(--text-muted);font-size:13px;}

/* Kontakte */
/* Gleicher Sticky-Offset (90px) wie .balance-card — siehe Kommentar dort. */
.search-bar{margin:0 20px 14px;display:flex;align-items:center;gap:8px;background:var(--surface-alt);
  border:1px solid var(--border);border-radius:13px;padding:9px 12px;color:var(--text-muted);font-size:13px;
  position:sticky;top:90px;z-index:9;}
.search-bar svg{width:15px;height:15px;flex-shrink:0;}
.search-bar input{border:none;background:transparent;outline:none;color:var(--text);font-size:13px;flex:1;}
.contact-list{padding:0 20px;display:flex;flex-direction:column;}
.contact-row{display:flex;align-items:center;gap:12px;padding:12px 2px;border-bottom:1px solid var(--border);cursor:pointer;}
.contact-row:last-child{border-bottom:none;}
.contact-info{flex:1;min-width:0;}
.contact-info .name{font-size:14px;font-weight:600;color:var(--text);}
.contact-info .meta{font-size:11.5px;color:var(--text-muted);margin-top:1px;}
.contact-amount{text-align:right;font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:14px;font-variant-numeric: tabular-nums;flex-shrink:0;}
.contact-amount .sub{display:block;font-family:'Inter';font-weight:500;font-size:10px;color:var(--text-muted);margin-top:1px;}
.chevron-r{width:15px;height:15px;color:var(--text-muted);flex-shrink:0;}

/* Kontakt-Detail: Identitaet (Avatar/Name/Button) und Saldo-Kacheln als EIN
   zusammenhaengender Block statt zwei getrennt wirkender Karten — gemeinsamer
   Rahmen/Radius/Hintergrund, mit einer Trennlinie zwischen den beiden Zonen. */
.detail-panel{margin:6px 20px 16px;padding:22px 18px;border-radius:20px;background:var(--surface-alt);
  border:1px solid var(--border);}
.detail-hero{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;
  padding-bottom:18px;margin-bottom:16px;border-bottom:1px solid var(--border);}
.detail-hero .avatar{width:58px;height:58px;font-size:19px;}
.detail-hero .dname{font-size:16px;font-weight:700;color:var(--text);}
.repay-btn{margin-top:6px;background:var(--primary);color:#fff;border:none;border-radius:11px;
  padding:10px 18px;font-size:12.5px;font-weight:700;cursor:pointer;}

/* Saldo-Kacheln: 1 Karte (nur Netto-Saldo) oder 3 (plus je Richtung), je
   nachdem ob aktuell offene Betraege in beide Richtungen bestehen. Immer
   gestapelt (Mobil-Spaltenbreite reicht ohnehin nur fuer eine Spalte). */
.detail-stat-cards{display:flex;flex-direction:column;gap:10px;}
.detail-stat-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px 16px;}
.detail-stat-card .label{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;}
.detail-stat-card .amount{font-family:'IBM Plex Mono',monospace;font-size:22px;font-weight:600;margin-top:4px;font-variant-numeric: tabular-nums;}

/* Neue Transaktion / Rückzahlung erfassen */
.form-wrap{padding:4px 20px 20px;display:flex;flex-direction:column;gap:16px;}
.amount-input-wrap{text-align:center;padding:14px 0 6px;}
.amount-input-wrap .cur{font-size:15px;color:var(--text-muted);font-weight:600;vertical-align:top;position:relative;top:8px;margin-right:2px;}
.amount-input-wrap input{border:none;background:transparent;outline:none;font-family:'IBM Plex Mono',monospace;
  font-size:40px;font-weight:600;color:var(--text);width:220px;text-align:center;font-variant-numeric: tabular-nums;}
.segmented{display:flex;background:var(--surface-alt);border:1px solid var(--border);border-radius:12px;padding:3px;}
.segmented button{flex:1;border:none;background:transparent;padding:9px 4px;border-radius:9px;
  font-size:12.5px;font-weight:600;color:var(--text-muted);cursor:pointer;}
.segmented button.active{background:var(--primary-tint);color:var(--primary);}
.segmented button.active.owe{background:var(--negative-bg);color:var(--negative);}
.segmented button.active.owed{background:var(--positive-bg);color:var(--positive);}
.segmented button:disabled{opacity:.5;cursor:default;}
.amount-input-wrap input:disabled{color:var(--text-muted);}
.chip-row{display:flex;gap:8px;}
.chip{padding:8px 14px;border-radius:20px;border:1px solid var(--border);background:var(--surface-alt);font-size:12.5px;font-weight:600;color:var(--text-muted);cursor:pointer;}
.chip.active{background:var(--primary-tint);border-color:var(--primary);color:var(--primary);}

.repay-contact{margin:6px 20px 4px;display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:14px;background:var(--surface-alt);border:1px solid var(--border);}
.repay-contact .avatar{width:34px;height:34px;font-size:12px;}
.repay-contact .label{font-size:10.5px;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:.05em;}
.repay-contact .name{font-size:13.5px;font-weight:700;color:var(--text);}
.open-amount-box{margin:14px 20px 0;display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:14px;background:var(--positive-bg);border:1px solid var(--positive);}
.open-amount-box .t{font-size:11.5px;font-weight:600;color:var(--positive);}
.open-amount-box .v{font-family:'IBM Plex Mono',monospace;font-weight:700;font-size:16px;color:var(--positive);}
.use-full-btn{background:none;border:none;color:var(--primary);font-size:11.5px;font-weight:700;cursor:pointer;text-decoration:underline;margin-top:2px;}

.debt-pick-list{display:flex;flex-direction:column;gap:8px;}
.debt-pick-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 13px;
  border-radius:12px;border:1px solid var(--border);background:var(--surface-alt);cursor:pointer;}
.debt-pick-item.selected{border-color:var(--primary);background:var(--primary-tint);}
.debt-pick-item .name{font-size:12.5px;font-weight:600;color:var(--text);}
.debt-pick-item .meta{font-size:11px;color:var(--text-muted);margin-top:1px;}
.debt-pick-item .amount{font-family:'IBM Plex Mono',monospace;font-weight:700;font-size:13px;color:var(--text);flex-shrink:0;}

.confirm-wrap{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:0 30px;gap:10px;}
.confirm-check{width:64px;height:64px;border-radius:50%;background:var(--positive-bg);display:flex;align-items:center;justify-content:center;margin-bottom:6px;}
.confirm-check svg{width:30px;height:30px;color:var(--positive);}
.confirm-wrap h2{font-size:17px;margin:0;color:var(--text);}
.confirm-wrap .newbal{font-family:'IBM Plex Mono',monospace;font-size:26px;font-weight:700;color:var(--text);margin:6px 0 2px;}
.confirm-wrap p{font-size:12.5px;color:var(--text-muted);margin:0;}
.confirm-wrap .save-btn{width:100%;margin-top:18px;}

/* Bottom Navigation */
.bottom-nav{flex-shrink:0;display:flex;align-items:center;justify-content:space-around;
  padding:10px 10px calc(14px + env(safe-area-inset-bottom));
  border-top:1px solid var(--border);background:var(--surface);position:relative;}
.nav-btn{display:flex;flex-direction:column;align-items:center;gap:3px;background:none;border:none;cursor:pointer;
  color:var(--text-muted);font-size:10px;font-weight:600;padding:4px 10px;}
.nav-btn.active{color:var(--primary);}
.nav-btn svg{width:21px;height:21px;}
.nav-fab{width:50px;height:50px;border-radius:16px;background:var(--primary);display:flex;align-items:center;
  justify-content:center;margin-top:-26px;box-shadow:0 10px 20px -8px rgba(27,75,143,0.7);cursor:pointer;border:none;}
.nav-fab svg{width:22px;height:22px;stroke:#fff;}

/* Fälligkeiten */
.due-list{padding:6px 20px;display:flex;flex-direction:column;gap:10px;}
.due-item{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:14px;background:var(--surface-alt);border:1px solid var(--border);}
.due-item.overdue{background:var(--negative-bg);border-color:var(--negative);}
.due-item.due-soon{background:var(--warning-bg);border-color:var(--warning);}
.due-item .avatar{width:34px;height:34px;font-size:12px;}
.due-info{flex:1;min-width:0;}
.due-info .name{font-size:13px;font-weight:600;color:var(--text);}
.due-info .date{font-size:11px;margin-top:1px;color:var(--text-muted);}
.due-item.overdue .due-info .date{color:var(--negative);font-weight:600;}
.due-item.due-soon .due-info .date{color:var(--warning);font-weight:600;}
.due-amount{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:13.5px;flex-shrink:0;}

/* Einstellungen */
.settings-list{padding:4px 20px 20px;display:flex;flex-direction:column;gap:18px;}
.settings-group{display:flex;flex-direction:column;gap:10px;}
.settings-group .glabel{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);}
.settings-group .glabel-hint{font-size:11.5px;color:var(--text-muted);margin-top:-3px;}
.settings-row{display:flex;align-items:center;justify-content:space-between;padding:13px 14px;border-radius:13px;background:var(--surface-alt);border:1px solid var(--border);cursor:pointer;}
.settings-row .left{display:flex;align-items:center;gap:10px;font-size:13.5px;font-weight:600;color:var(--text);}
.settings-row .left svg{width:17px;height:17px;color:var(--primary);flex-shrink:0;}
.theme-seg{display:flex;background:var(--bg);border:1px solid var(--border);border-radius:11px;padding:3px;gap:2px;}
.theme-seg button{flex:1;border:none;background:transparent;padding:8px 4px;border-radius:8px;font-size:11.5px;font-weight:600;color:var(--text-muted);cursor:pointer;}
.theme-seg button.active{background:var(--primary-tint);color:var(--primary);}

/* Modal (z.B. "Neuer Kontakt") */
.modal-overlay{position:fixed;inset:0;background:rgba(10,16,28,0.5);display:flex;align-items:flex-end;
  justify-content:center;z-index:200;}
.modal-card{width:100%;max-width:420px;background:var(--surface);border-radius:20px 20px 0 0;
  padding:22px 20px calc(20px + env(safe-area-inset-bottom));box-shadow:var(--shadow);}
.modal-card h3{margin:0 0 16px;font-size:15.5px;color:var(--text);}
.modal-actions{display:flex;gap:10px;margin-top:6px;}
.modal-actions .save-btn{margin-top:0;}
.modal-actions .cancel-btn{flex:0 0 auto;background:var(--surface-alt);color:var(--text);border:1px solid var(--border);
  border-radius:13px;padding:14px 18px;font-size:14.5px;font-weight:700;cursor:pointer;}
@media (min-width: 640px){
  .modal-overlay{align-items:center;}
  .modal-card{border-radius:20px;}
}

/* Toasts */
.toast-container{position:fixed;top:calc(12px + env(safe-area-inset-top));left:50%;transform:translateX(-50%);
  z-index:300;display:flex;flex-direction:column;gap:10px;align-items:center;width:calc(100% - 32px);max-width:360px;
  pointer-events:none;}
.toast{width:100%;pointer-events:auto;position:relative;padding:13px 34px 13px 13px;border-radius:14px;
  background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);
  display:flex;align-items:flex-start;gap:11px;
  opacity:0;transform:translateY(-14px) scale(.97);
  transition:opacity .25s ease, transform .25s ease;}
.toast.show{opacity:1;transform:translateY(0) scale(1);}
.toast-icon-badge{width:28px;height:28px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;}
.toast-icon-badge svg{width:14px;height:14px;}
.toast-content{flex:1;min-width:0;padding-top:1px;}
.toast-title{font-size:12.5px;font-weight:700;color:var(--text);line-height:1.3;}
.toast-message{font-size:12px;font-weight:500;color:var(--text-muted);line-height:1.4;margin-top:2px;}
.toast-close{position:absolute;top:9px;right:9px;width:22px;height:22px;border:none;border-radius:7px;
  background:none;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;}
.toast-close svg{width:12px;height:12px;}
.toast-close:hover{background:var(--surface-alt);color:var(--text);}
.toast.success .toast-icon-badge{background:var(--positive-bg);color:var(--positive);}
.toast.error .toast-icon-badge{background:var(--negative-bg);color:var(--negative);}
.toast.warning .toast-icon-badge{background:var(--warning-bg);color:var(--warning);}
.toast.info .toast-icon-badge{background:var(--primary-tint);color:var(--primary);}
@media (min-width: 900px){
  .toast-container{left:auto;right:24px;top:24px;transform:none;}
}