/* PixelPay – minimales, ruhiges Design.
   Farben als CSS-Variablen, damit wir später leicht umfärben können. */

:root {
    --pp-ink: #14161a;
    --pp-muted: #6b7280;
    --pp-bg: #f5f6f8;
    --pp-surface: #ffffff;
    --pp-border: #e6e8ec;
    --pp-accent: #4f46e5;        /* dezenter Indigo-Akzent */
    --pp-accent-ink: #ffffff;
    --pp-grad: linear-gradient(135deg, #00a2fc 0%, #ce00ce 100%); /* Marken-Verlauf (Logo) */
    --pp-blue: #00a2fc;          /* Marken-Blau (Haupt-Button) */
    --pp-blue-dark: #0086d3;     /* Hover */
    --pp-radius: 16px;
    --pp-shadow: 0 20px 50px -20px rgba(20, 22, 26, 0.25);
    --pp-font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--pp-font);
    color: var(--pp-ink);
    background:
        radial-gradient(1200px 600px at 50% -10%, #ffffff, transparent),
        var(--pp-bg);
    display: grid;
    place-items: center;
    padding: 24px;
}

.pp-shell { width: 100%; max-width: 520px; position: relative; z-index: 1; }

.pp-card {
    background: var(--pp-surface);
    border: 1px solid var(--pp-border);
    border-radius: var(--pp-radius);
    box-shadow: var(--pp-shadow);
    overflow: hidden;
}

/* Dunkler Kopfbereich mit hellem Logo */
.pp-card__header {
    background: #1C2025;
    padding: 30px 32px;
    text-align: center;
}

/* Weißer Inhaltsbereich darunter */
.pp-card__body {
    padding: 32px 32px 28px;
    text-align: center;
}

.pp-logo {
    display: block;
    height: 30px;
    width: auto;
    max-width: 75%;
    margin: 0 auto;
}

.pp-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 8px;
    line-height: 1.2;
}

.pp-card__lead {
    color: var(--pp-muted);
    font-size: 0.95rem;
    margin: 0 0 26px;
}

/* Presets */
.pp-presets {
    border: 0;
    padding: 0;
    margin: 0 0 18px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.pp-preset {
    position: relative;
    display: block;
    cursor: pointer;
}

/* Overlay-Radio nur für die festen Presets – NICHT für das Custom-Zahlenfeld! */
.pp-preset:not(.pp-preset--custom) input {
    position: absolute;
    opacity: 0;
    inset: 0;
    cursor: pointer;
}

/* Feste Presets (Label + Overlay-Radio) */
.pp-preset:not(.pp-preset--custom) > span {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px;
    border: 1.5px solid var(--pp-border);
    border-radius: 12px;
    font-weight: 600;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.pp-preset:not(.pp-preset--custom) input:checked + span {
    border-color: var(--pp-accent);
    background: color-mix(in srgb, var(--pp-accent) 8%, white);
    color: var(--pp-accent);
}
.pp-preset:not(.pp-preset--custom) input:focus-visible + span {
    outline: 2px solid var(--pp-accent);
    outline-offset: 2px;
}

/* "Eigener Betrag": eigener Container (kein Label-Overlay), Input frei tippbar */
.pp-preset--custom {
    grid-column: 1 / -1;
    display: flex; align-items: center; justify-content: center;
    padding: 14px; border: 1.5px solid var(--pp-border); border-radius: 12px;
    font-weight: 600; cursor: pointer; position: relative;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.pp-preset--custom.is-active {
    border-color: var(--pp-accent);
    background: color-mix(in srgb, var(--pp-accent) 8%, white);
    color: var(--pp-accent);
}
.pp-vh { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

.pp-preset__field { display: none; position: relative; width: 100%; }
.pp-preset--custom.is-active .pp-preset__text { display: none; }
.pp-preset--custom.is-active .pp-preset__field { display: block; }
/* "CHF" linksbündig fixiert, Betrag über die volle Feldbreite zentriert */
.pp-cur {
    position: absolute; left: 0; top: 50%; transform: translateY(-50%);
    font-weight: 700; color: var(--pp-accent);
}
.pp-preset__field input {
    border: 0; background: transparent; outline: none; padding: 0; margin: 0;
    font: inherit; font-weight: 700; color: var(--pp-accent);
    width: 100%; text-align: center; -moz-appearance: textfield;
}
.pp-preset__field input::-webkit-outer-spin-button,
.pp-preset__field input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.pp-preset__field input::placeholder { color: color-mix(in srgb, var(--pp-accent) 40%, white); }

/* Button */
.pp-btn {
    width: 100%;
    background: var(--pp-blue);
    color: #fff;
    border: 0;
    border-radius: 12px;
    font-weight: 600;
    padding: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: background 0.15s, transform 0.05s, box-shadow 0.15s;
}

.pp-btn:hover { color: #fff; background: var(--pp-blue-dark); box-shadow: 0 10px 24px -10px rgba(0, 130, 210, 0.5); }
.pp-btn:active { transform: translateY(1px); }
.pp-btn:disabled { opacity: 0.6; box-shadow: none; }

.pp-error { margin: 14px 0 0; font-size: 0.9rem; }

/* Footer */
.pp-card__foot {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--pp-border);
    text-align: center;
}

.pp-pay { font-size: 0.9rem; color: var(--pp-ink); }
.pp-pay span { color: var(--pp-muted); }
.pp-secured { font-size: 0.78rem; color: var(--pp-muted); margin-top: 6px; }

/* Animierter Hintergrund – subtil, langsam, leicht drehend */
.pp-bg {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}
.pp-bg__i {
    position: absolute;
    opacity: var(--pp-op, 0.08);
    line-height: 1;
    will-change: transform;
    animation: pp-drift var(--pp-dur, 12s) ease-in-out infinite alternate;
}
.pp-bg__i i, .pp-bg__i svg { display: block; }
@keyframes pp-drift {
    from { transform: translate(0, 0) rotate(0deg); }
    to   { transform: translate(var(--pp-tx, 50px), var(--pp-ty, -60px)) rotate(var(--pp-rot, 35deg)); }
}
@media (prefers-reduced-motion: reduce) {
    .pp-bg__i { animation: none; }
}

/* Erfolg / Abbruch */
.pp-state { text-align: center; }
.pp-state__icon { font-size: 2.5rem; margin-bottom: 8px; }
.pp-link { color: var(--pp-accent); font-weight: 600; text-decoration: none; }
.pp-link:hover { text-decoration: underline; }