/* Anmeldung und Passwort – Designsprache der IOT Service GmbH (wie die FELDSTROM-Weboberfläche).
   Keine externen Schriften: Inter, falls installiert, sonst Systemschrift (kein Laden von Google-Servern). */
:root {
    --brand: #05b0ef;
    --bg: #fafafb;
    --card: #ffffff;
    --text: #0a0a0a;
    --muted: #6b7280;
    --border: #e8e9ec;
    --input: #e2e4e8;
    --ink: #0a0a0a;
    --ink-text: #ffffff;
    --danger: #e5484d;
    --grid: rgba(10, 10, 10, 0.05);
    --mono: "JetBrains Mono", "Cascadia Mono", Consolas, ui-monospace, monospace;
}

@media (prefers-color-scheme: dark) {
    :root {
        --brand: #2fbef3;
        --bg: #080b14;
        --card: #0d1220;
        --text: #f5f6f8;
        --muted: #8e95a3;
        --border: #1e2230;
        --input: #252a3a;
        --ink: #f5f6f8;
        --ink-text: #080b14;
        --danger: #f2555a;
        --grid: rgba(245, 246, 248, 0.05);
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg);
    color: var(--text);
    font-family: Inter, "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    background-image:
        radial-gradient(ellipse at 50% -10%, color-mix(in srgb, var(--brand) 18%, transparent), transparent 55%),
        linear-gradient(to right, var(--grid) 1px, transparent 1px),
        linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
    background-size: auto, 24px 24px, 24px 24px;
}

.topbar { display: flex; align-items: center; justify-content: space-between; padding: 20px 28px; }
.topbar img { height: 36px; }

.tagline, .eyebrow {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
}

main { flex: 1; display: grid; place-items: center; padding: 16px 16px 48px; }

.card {
    position: relative;
    width: 100%;
    max-width: 400px;
    padding: 36px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
}
/* Ecken-Markierungen wie auf technischen Zeichnungen */
.card::before, .card::after { content: ""; position: absolute; width: 9px; height: 9px; border: 0 solid var(--brand); }
.card::before { top: -1px; left: -1px; border-top-width: 1.5px; border-left-width: 1.5px; border-top-left-radius: 3px; }
.card::after { bottom: -1px; right: -1px; border-bottom-width: 1.5px; border-right-width: 1.5px; border-bottom-right-radius: 3px; }

.wordmark { display: flex; align-items: center; gap: 10px; font-size: 24px; font-weight: 600; letter-spacing: 0.06em; }
.wordmark svg { width: 1.6em; height: 1.6em; }
.wordmark .light { font-weight: 300; color: var(--brand); }

/* Eyebrow mit Lötpunkt und Leiterbahn wie auf der Website */
.eyebrow { display: flex; align-items: center; gap: 0; margin: 28px 0 10px; color: var(--brand); font-weight: 600; }
.eyebrow::before { content: ""; width: 5px; height: 5px; border: 1px solid currentColor; border-radius: 999px; }
.eyebrow::after { content: ""; order: 1; }
.eyebrow .trace { width: 18px; height: 1px; margin-right: 8px; background: currentColor; }

h1 { margin: 0; font-size: 26px; font-weight: 600; letter-spacing: -0.03em; }
.subtitle { margin: 8px 0 20px; color: var(--muted); font-size: 15px; }

label { display: block; margin: 16px 0 6px; font-size: 13px; font-weight: 500; }

input[type=email], input[type=password] {
    width: 100%;
    padding: 10px 12px;
    font: inherit;
    font-size: 15px;
    color: var(--text);
    background: var(--card);
    border: 1px solid var(--input);
    border-radius: 8px;
}
input:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 30%, transparent); }

button, a.button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    width: 100%;
    margin-top: 24px;
    padding: 12px;
    font: inherit;
    font-size: 15px;
    font-weight: 500;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.2s;
}
.primary { background: var(--ink); color: var(--ink-text); border: 0; }
.primary:hover { background: var(--brand); color: #fff; transform: translateY(-1px); }
.secondary { margin-top: 0; background: var(--card); color: var(--text); border: 1px solid var(--border); }
.secondary:hover { border-color: color-mix(in srgb, var(--text) 25%, transparent); transform: translateY(-1px); }

.error {
    padding: 10px 12px;
    font-size: 14px;
    color: var(--danger);
    border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent);
    background: color-mix(in srgb, var(--danger) 8%, transparent);
    border-radius: 8px;
}
.field-error { display: block; margin-top: 4px; font-size: 13px; color: var(--danger); }

.divider { display: flex; align-items: center; gap: 12px; margin: 22px 0 16px; color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }

.foot { padding: 0 28px 24px; text-align: center; color: var(--muted); font-size: 12px; }

@media (max-width: 520px) {
    .tagline { display: none; }
    .card { padding: 28px 22px; }
}

/* Zahlungsseite */
.facts {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1.5rem;
  margin: 1.5rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.facts dt {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  align-self: center;
}
.facts dd { margin: 0; text-align: right; }
.facts .amount { font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.hint { font-size: 0.8rem; color: var(--muted); margin-top: 0.75rem; }
.seller-logo { display: block; max-height: 56px; max-width: 220px; object-fit: contain; margin-bottom: 1.25rem; }