/* ==========================================================================
   card-deck.css — Zertifikate als Kartenstapel (Startseite). Farben aus dem Theme.
   ========================================================================== */
.cdk {
    --cdk-w: min(84vw, 460px);
    --cdk-ink: var(--text, #f4f4f6);
    --cdk-muted: var(--text-muted, #a1a1aa);
    --cdk-line: var(--border, rgba(255, 255, 255, .12));
    position: relative;
    display: flex; flex-direction: column; align-items: center;
    gap: clamp(22px, 4vh, 36px);
    padding-top: 56px;                 /* Platz fuer die angehobenen Karten dahinter */
    color: var(--cdk-ink);
}
.cdk-deck {
    position: relative;
    width: var(--cdk-w);
    aspect-ratio: 7 / 5;
    touch-action: pan-y;               /* senkrecht scrollt die Seite, waagerecht wirft die Karte */
}
.cdk-card {
    all: unset;
    position: absolute; inset: 0;
    display: block; box-sizing: border-box;
    border-radius: 16px; overflow: hidden;
    background: var(--surface, #17161b);
    border: 1px solid rgba(255, 255, 255, .08);
    box-shadow: 0 1px 2px rgba(0, 0, 0, .2), 0 30px 60px -28px rgba(0, 0, 0, .8);
    transition: transform .6s cubic-bezier(.2, .8, .2, 1), opacity .4s ease, filter .4s ease;
    will-change: transform;
    user-select: none; -webkit-user-select: none;
}
.cdk-card:not(:first-child) { opacity: 0; }          /* ohne JavaScript: nur die erste Karte */
.cdk.is-ready .cdk-card:not(:first-child) { opacity: 1; }
.cdk-card[data-top="1"] { cursor: grab; }
.cdk-card[data-mode="drag"] { cursor: grabbing; transition: none; }
.cdk-card[data-mode="fly"] { transition: transform .45s cubic-bezier(.3, .5, .3, 1), opacity .45s ease; }
.cdk-card[data-mode="snap"] { transition: none; }
.cdk-card:focus-visible { outline: 3px solid var(--accent, #b775ff); outline-offset: 4px; }
.cdk-card img {
    position: absolute; inset: 0; width: 100%; height: 100%; max-width: none;
    object-fit: cover; display: block; pointer-events: none; user-select: none; -webkit-user-drag: none;
}
.cdk-card::after {                    /* Lupe auf der obersten Karte (Hinweis: Klick vergroessert) */
    content: ""; position: absolute; right: 12px; bottom: 12px; width: 34px; height: 34px; border-radius: 50%;
    background: rgba(0, 0, 0, .55) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5M11 8v6M8 11h6'/%3E%3C/svg%3E") center / 18px no-repeat;
    opacity: 0; transform: scale(.9); transition: opacity .25s ease, transform .25s ease;
}
.cdk-card[data-top="1"]:hover::after, .cdk-card[data-top="1"]:focus-visible::after { opacity: 1; transform: none; }

/* ---------- Beschriftung + Steuerung ---------- */
.cdk-meta { display: flex; align-items: center; gap: clamp(12px, 3vw, 24px); width: min(var(--cdk-w), 100%); max-width: 560px; }
.cdk-caps { flex: 1; min-width: 0; overflow: hidden; }
.cdk-cap[hidden] { display: none; }
.cdk-cap > * { animation: cdkIn .55s cubic-bezier(.2, .8, .2, 1) both; }
.cdk-title {
    margin: 0; font-size: clamp(1rem, .95rem + .35vw, 1.2rem); line-height: 1.25; font-weight: 600;
    color: var(--cdk-ink); text-transform: none; letter-spacing: 0; font-family: inherit;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cdk-sub { margin: 3px 0 0; font-size: .85rem; color: var(--cdk-muted); animation-delay: .05s; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cdk-count { font-variant-numeric: tabular-nums; font-size: .78rem; letter-spacing: .14em; color: var(--cdk-muted); white-space: nowrap; }
.cdk-count b { color: var(--cdk-ink); font-weight: 600; }
.cdk-btn {
    appearance: none; flex: none; display: grid; place-items: center;
    width: 44px; height: 44px; border-radius: 50%; padding: 0; cursor: pointer;
    border: 1px solid var(--cdk-line); background: rgba(255, 255, 255, .04); color: inherit;
    transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .15s ease;
}
.cdk-btn:hover { background: var(--accent, #b775ff); border-color: var(--accent, #b775ff); color: #fff; }
.cdk-btn:active { transform: scale(.94); }
.cdk-btn:focus-visible { outline: 2px solid var(--accent, #b775ff); outline-offset: 3px; }
.cdk-hint { margin: -10px 0 0; font-size: .78rem; color: var(--cdk-muted); }
.cdk-live, .cdk-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
@keyframes cdkIn { from { transform: translateY(100%); opacity: 0; } to { transform: none; opacity: 1; } }

@media (max-width: 575.98px) {
    .cdk { --cdk-w: min(80vw, 380px); padding-top: 44px; }
    .cdk-count { display: none; }
}
@media (prefers-reduced-motion: reduce) {
    .cdk-card, .cdk-card[data-mode="fly"] { transition: opacity .3s ease; }
    .cdk-cap > * { animation: none; }
}