/* ============================================================
   Kupferkonto — eigenständiges Branding
   Papier/Quittungs-Optik, Rostorange als Leitfarbe.
   Bewusst NICHT blau, NICHT glatt-corporate.
   ============================================================ */

:root {
  --rust: #b5502e;
  --rust-dark: #8a3a1f;
  --rust-light: #e8c9a8;
  --ink: #2b241d;
  --ink-soft: #6b5f4f;
  --paper: #f2e9d8;
  --paper-dark: #e7dabf;
  --card: #fbf6ea;
  --line: #cbb995;
  --green: #4c6b3a;
  --green-bg: #e6ead9;
  --red: #a3341f;
  --red-bg: #f3ddd2;
  --radius: 4px;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Georgia", "Iowan Old Style", "Times New Roman", serif;
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* Papiertextur: feines Rauschen + leichte Fleckung, rein per CSS-Gradients */
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 15% 20%, rgba(181, 80, 46, 0.05), transparent 40%),
    radial-gradient(circle at 85% 75%, rgba(181, 80, 46, 0.06), transparent 45%),
    repeating-linear-gradient(0deg, rgba(43,36,29,0.015) 0px, rgba(43,36,29,0.015) 1px, transparent 1px, transparent 3px);
}

/* Disclaimer */
.disclaimer-bar {
  background: var(--rust);
  color: #fdf3e7;
  text-align: center;
  font-family: "Courier New", monospace;
  font-size: .74rem;
  letter-spacing: .02em;
  padding: 9px 12px;
  line-height: 1.5;
  border-bottom: 2px solid var(--rust-dark);
}
.disclaimer-bar strong { text-decoration: underline; }

/* Topbar */
.topbar {
  background: transparent;
  border-bottom: 2px dashed var(--line);
}
.topbar-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 20px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--rust-dark);
  font-family: "Copperplate", "Cambria", Georgia, serif;
  letter-spacing: .01em;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--rust);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  border: 2px solid var(--rust-dark);
  box-shadow: inset 0 0 0 2px var(--paper);
}
.logo-text { letter-spacing: -0.01em; }

/* Step indicator: wie Wäscheleine mit Ziffern statt Kreis-Wizard */
.step-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: "Courier New", monospace;
}
.step {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-soft);
  font-size: .78rem;
}
.step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .72rem;
  font-weight: 700;
  color: var(--ink-soft);
  background: var(--card);
}
.step.active .step-num,
.step.done .step-num {
  border-color: var(--rust);
  color: var(--paper);
  background: var(--rust);
}
.step.active .step-label { color: var(--rust-dark); font-weight: 700; }
.step-line {
  width: 20px;
  height: 2px;
  background: var(--line);
  background-image: linear-gradient(90deg, var(--line) 50%, transparent 50%);
  background-size: 6px 2px;
}

/* Stage / screens */
.stage {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 44px 16px;
}
.screen { display: none; width: 100%; max-width: 430px; }
.screen.active {
  display: block;
  animation: fadeUp .3s ease;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px) rotate(-0.3deg); }
  to { opacity: 1; transform: translateY(0) rotate(0); }
}

/* Karte = Quittungszettel-Look statt glatte Elevation-Card */
.card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1.5px solid var(--ink);
  padding: 34px 30px;
  position: relative;
  box-shadow: 5px 5px 0 var(--rust-light), 5px 5px 0 1.5px var(--ink);
}
.card::before {
  /* perforierter oberer Rand, wie ein abgerissener Beleg */
  content: "";
  position: absolute;
  top: -1px; left: 12px; right: 12px;
  height: 6px;
  background-image: radial-gradient(circle, var(--paper) 2.5px, transparent 2.6px);
  background-size: 14px 12px;
  background-position: top center;
}
.card-title {
  font-size: 1.5rem;
  margin: 0 0 6px;
  color: var(--rust-dark);
  font-family: "Copperplate", "Cambria", Georgia, serif;
  letter-spacing: .01em;
}
.card-title.center { text-align: center; }
.card-sub {
  margin: 0 0 26px;
  color: var(--ink-soft);
  font-size: .92rem;
  line-height: 1.5;
}
.card-sub.center { text-align: center; }

/* Form */
.field { display: block; margin-bottom: 18px; }
.field-label {
  display: block;
  font-size: .78rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-family: "Courier New", monospace;
}
input[type="email"], input[type="password"], input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--ink);
  border-radius: 2px;
  font-size: .95rem;
  outline: none;
  transition: box-shadow .15s;
  font-family: "Courier New", monospace;
  background: var(--paper);
  color: var(--ink);
}
input:focus {
  box-shadow: 3px 3px 0 var(--rust);
}
.hint {
  font-size: .78rem;
  color: var(--ink-soft);
  background: var(--rust-light);
  border: 1px dashed var(--rust);
  border-radius: 2px;
  padding: 10px 12px;
  margin: 4px 0 20px;
  line-height: 1.5;
}

/* Buttons: gestempelt statt pill-shaped */
.btn {
  border: 1.5px solid var(--ink);
  border-radius: 2px;
  padding: 13px 20px;
  font-size: .92rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .08s ease, box-shadow .12s ease;
  font-family: "Courier New", monospace;
  text-transform: uppercase;
  letter-spacing: .05em;
  box-shadow: 3px 3px 0 var(--ink);
}
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.btn-block { width: 100%; }
.btn-primary {
  background: var(--rust);
  color: var(--paper);
}
.btn-primary:hover { background: var(--rust-dark); }
.btn-secondary {
  background: var(--card);
  color: var(--ink);
}
.btn-secondary:hover { background: var(--paper-dark); }
.btn-pay {
  background: var(--green);
  color: var(--paper);
  flex: 1;
}
.btn-pay:hover { filter: brightness(1.08); }
.btn-pay:disabled { opacity: .6; cursor: not-allowed; transform: none; box-shadow: 3px 3px 0 var(--ink); }
.btn-row {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}
.btn-row .btn-secondary { flex: 0 0 auto; }
.btn-row .btn-primary { flex: 1; }

/* Summary box: wie Belegzeilen */
.summary-box {
  border: 1.5px dashed var(--ink);
  border-radius: 2px;
  padding: 16px 18px;
  margin-bottom: 18px;
  background: var(--paper);
}
.summary-box.small { margin-bottom: 12px; }
.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .88rem;
  padding: 7px 0;
  color: var(--ink-soft);
  font-family: "Courier New", monospace;
}
.summary-row strong { color: var(--ink); font-weight: 700; }
.summary-row:not(:last-child) { border-bottom: 1px dotted var(--line); }
.summary-row.total {
  padding-top: 12px;
  font-size: 1.05rem;
}
.summary-row.total strong { color: var(--rust-dark); font-size: 1.2rem; }

.balance-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--green-bg);
  border: 1.5px solid var(--green);
  border-radius: 2px;
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: .86rem;
  color: #2f4222;
  font-family: "Courier New", monospace;
}
.balance-box strong { color: var(--green); font-size: 1rem; }

.fineprint {
  font-size: .74rem;
  color: var(--ink-soft);
  margin: 10px 0 0;
  font-family: "Courier New", monospace;
}
.fineprint.center { text-align: center; }

/* Erfolgs-Stempel statt grünem Häkchen-Icon */
.stamp {
  display: flex;
  justify-content: center;
  margin-bottom: 18px;
}
.stamp-text {
  display: inline-block;
  border: 3px solid var(--rust);
  color: var(--rust);
  font-family: "Copperplate", "Cambria", Georgia, serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 10px 22px;
  border-radius: 4px;
  transform: rotate(-6deg);
  position: relative;
}
.stamp-text::before, .stamp-text::after {
  content: "";
  position: absolute;
  border: 1.5px solid var(--rust);
  border-radius: 4px;
  inset: 4px;
}

/* Footer */
.site-footer {
  text-align: center;
  font-size: .72rem;
  color: var(--ink-soft);
  padding: 24px 16px 34px;
  font-family: "Courier New", monospace;
  line-height: 1.6;
}

@media (max-width: 480px) {
  .step-label { display: none; }
  .card { padding: 28px 20px; }
  .card::before { left: 8px; right: 8px; }
}