/* =========================================================================
   Passwortmanager Übungs-Demo – minimalistisches, klares Design
   ========================================================================= */

:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #e3e6ea;
  --text: #1c2430;
  --muted: #6b7787;
  --primary: #3b5bdb;
  --primary-hover: #324bb8;
  --primary-soft: #eef1fd;
  --success: #2f9e44;
  --success-soft: #ebfbee;
  --danger: #e03131;
  --danger-soft: #fff0f0;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 8px 24px rgba(16, 24, 40, 0.06);
  --maxw: 920px;
  --control-bg: #ffffff;   /* Hintergrund für Eingaben/Schalter; Dark Mode überschreibt */
  color-scheme: light;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  transition: background-color .2s ease, color .2s ease;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Layout ---------- */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  font-size: 1.05rem;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand .logo {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  background: var(--primary); color: #fff;
  border-radius: 8px; font-size: 16px;
}
.nav-links { display: flex; gap: 18px; align-items: center; }
.nav-links a { color: var(--muted); font-size: .95rem; }

/* Sprach- und Design-Umschalter (gleiche Optik) */
.lang-switch, .theme-switch {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  background: var(--control-bg);
}
.lang-switch button, .theme-switch button {
  border: 0;
  background: transparent;
  padding: 5px 11px;
  font: inherit;
  font-size: .8rem;
  font-weight: 650;
  color: var(--muted);
  cursor: pointer;
}
.lang-switch button + button, .theme-switch button + button { border-left: 1px solid var(--border); }
.lang-switch button.active, .theme-switch button.active { background: var(--primary); color: #fff; }
/* Theme-Icons etwas größer als die DE/EN-Kürzel. */
.theme-switch button { font-size: .95rem; line-height: 1; padding: 4px 10px; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 8px 20px 56px;
}
.narrow { max-width: 460px; }

/* ---------- Card ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 22px;
}
.card h2 { margin: 0 0 4px; font-size: 1.15rem; }
.card .card-sub { color: var(--muted); margin: 0 0 18px; font-size: .94rem; }

.hero { text-align: center; padding: 26px 20px 10px; }
.hero h1 { font-size: 1.7rem; margin: 0 0 8px; letter-spacing: -0.01em; }
.hero p { color: var(--muted); margin: 0 auto; max-width: 540px; }

.demo-badge {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 12px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
}

/* ---------- Tabs ---------- */
.tabs {
  display: flex;
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 4px;
  margin-bottom: 22px;
}
.tab {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 9px 12px;
  border-radius: 7px;
  font: inherit;
  font-weight: 550;
  color: var(--muted);
  cursor: pointer;
}
.tab.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }

/* ---------- Forms ---------- */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: .9rem; font-weight: 550; margin-bottom: 6px; }
.input {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  background: var(--control-bg);
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
.input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 11px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-secondary { background: var(--control-bg); color: var(--text); border-color: var(--border); }
.btn-secondary:hover:not(:disabled) { background: var(--bg); }
.btn-danger { background: var(--control-bg); color: var(--danger); border-color: #f3c6c6; }
.btn-danger:hover:not(:disabled) { background: var(--danger-soft); }
.btn-danger-solid { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger-solid:hover:not(:disabled) { background: #c92a2a; border-color: #c92a2a; }
.btn-inline { width: auto; padding: 8px 14px; font-size: .9rem; }

/* Danger-Zone-Karte (Account löschen) – dezent rot abgesetzt. */
.card-danger { border-color: #f3c6c6; }

.hint { color: var(--muted); font-size: .85rem; margin-top: 8px; }

/* ---------- "Test-Account löschen" (zurückhaltend, da destruktiv) ---------- */
.delete-account { margin-top: 18px; }
.delete-account > summary {
  cursor: pointer; list-style: none;
  color: var(--muted); font-size: .85rem; text-align: center;
  padding: 6px; user-select: none;
}
.delete-account > summary::-webkit-details-marker { display: none; }
.delete-account > summary:hover { color: var(--danger); }
.delete-account[open] > summary { color: var(--text); margin-bottom: 10px; }
.delete-account form {
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px;
}

.divider {
  display: flex; align-items: center; gap: 12px;
  color: var(--muted); font-size: .82rem; margin: 18px 0;
}
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }

/* ---------- Alerts ---------- */
.alert {
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: .9rem;
  margin-bottom: 16px;
  display: none;
}
.alert.show { display: block; }
.alert-error { background: var(--danger-soft); color: #b42318; border: 1px solid #f3c6c6; }
.alert-success { background: var(--success-soft); color: #1e7a32; border: 1px solid #c3ecca; }
.alert-info { background: var(--primary-soft); color: var(--primary); border: 1px solid #d4ddfb; }

/* ---------- Badges / status ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; border-radius: 999px; font-size: .8rem; font-weight: 600;
}
.badge-on { background: var(--success-soft); color: var(--success); }
.badge-off { background: var(--bg); color: var(--muted); }

.row-between { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }

/* ---------- Dashboard ---------- */
.dash-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 8px; }
.dash-head h1 { font-size: 1.45rem; margin: 0; }
.dash-grid { display: grid; gap: 22px; grid-template-columns: 1fr 1fr; }
@media (max-width: 760px) { .dash-grid { grid-template-columns: 1fr; } }

.qr-wrap { text-align: center; padding: 8px 0 4px; }
.qr-wrap img { width: 196px; height: 196px; border: 1px solid var(--border); border-radius: var(--radius-sm); background:#fff; }
.secret-pill {
  display: inline-block; margin-top: 10px; padding: 8px 12px;
  background: var(--bg); border: 1px dashed var(--border); border-radius: var(--radius-sm);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9rem; letter-spacing: 1px;
  word-break: break-all;
}

.list { list-style: none; padding: 0; margin: 0; }
.list-item {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 0; border-top: 1px solid var(--border);
}
.list-item:first-child { border-top: 0; }
.list-item .meta { font-size: .85rem; color: var(--muted); }
.empty { color: var(--muted); font-size: .92rem; padding: 8px 0; }

/* ---------- Guide ---------- */
.guide h1 { font-size: 1.6rem; margin-top: 0; }
.guide h2 { font-size: 1.15rem; margin-top: 30px; }
.guide ol, .guide ul { padding-left: 22px; }
.guide li { margin: 8px 0; }
.step {
  display: flex; gap: 14px; padding: 16px 0; border-top: 1px solid var(--border);
}
.step:first-of-type { border-top: 0; }
.step .num {
  flex: 0 0 30px; height: 30px; width: 30px; border-radius: 50%;
  background: var(--primary-soft); color: var(--primary);
  display: grid; place-items: center; font-weight: 700;
}
.step .step-body h3 { margin: 2px 0 4px; font-size: 1rem; }
.step .step-body p { margin: 0; color: var(--muted); }

.callout {
  background: var(--primary-soft);
  border: 1px solid #d4ddfb;
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: #2a3a8c;
  font-size: .92rem;
  margin: 18px 0;
}

.footer { text-align: center; color: var(--muted); font-size: .82rem; padding: 24px 0 8px; }

/* Dezenter Hinweis auf die automatische Löschung – bewusst unauffällig. */
.expiry-note { text-align: center; color: var(--muted); font-size: .78rem; opacity: .8; margin: 24px 0 0; }
.expiry-note[hidden] { display: none; }

.spin { display: inline-block; width: 15px; height: 15px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hidden { display: none !important; }

/* Kleine Layout-Utilities (statt Inline-Styles, damit die strikte CSP greift) */
.mt-0 { margin-top: 0; }
.mt-10 { margin-top: 10px; }
.mt-14 { margin-top: 14px; }
.mt-16 { margin-top: 16px; }
.sub-tight { margin-top: -2px; }

/* =========================================================================
   Dark Mode – per [data-theme="dark"] am <html> umgeschaltet (theme.js).
   Überschreibt vor allem die Farb-Variablen. QR-Codes bleiben bewusst hell
   (.qr-wrap img), damit sie scanbar bleiben.
   ========================================================================= */
:root[data-theme="dark"] {
  --bg: #0f141b;
  --surface: #19202a;
  --border: #2b333f;
  --text: #e6eaf0;
  --muted: #9aa6b4;
  --primary: #4f70e8;
  --primary-hover: #6181f0;
  --primary-soft: #1b2440;
  --success: #51cf66;
  --success-soft: #15291b;
  --danger: #ff6b6b;
  --danger-soft: #2b1719;
  --control-bg: #222b36;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 28px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

/* Komponenten mit fest verdrahteten Light-Farben für Dark Mode nachziehen. */
:root[data-theme="dark"] .alert-error { color: #ffb0b0; border-color: #5b2b2b; }
:root[data-theme="dark"] .alert-success { color: #8ce6a0; border-color: #2b5a38; }
:root[data-theme="dark"] .alert-info { color: var(--primary); border-color: #314169; }
:root[data-theme="dark"] .callout { color: #c2cdff; border-color: #314169; }
:root[data-theme="dark"] .btn-danger { border-color: #5b2b2b; }
:root[data-theme="dark"] .card-danger { border-color: #5b2b2b; }
/* Solider Lösch-Button: in Dark Mode kräftiges Rot mit weißer Schrift statt
   des aufgehellten --danger (sonst zu wenig Kontrast). */
:root[data-theme="dark"] .btn-danger-solid { background: #e0383a; border-color: #e0383a; }