/* Stars top-up shop — Telegram native look. Picks up Telegram theme via CSS vars
 * (--tg-theme-bg-color etc). Falls back to a neutral dark theme outside Telegram. */

.shop-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 1000;
    align-items: flex-end;
    justify-content: center;
    backdrop-filter: blur(2px);
}
.shop-overlay.show { display: flex; }

.shop-sheet {
    width: 100%;
    max-width: 520px;
    background: var(--tg-theme-bg-color, #18222d);
    color:      var(--tg-theme-text-color, #fff);
    border-radius: 14px 14px 0 0;
    padding: 16px 16px 24px;
    position: relative;
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.35);
    animation: shopSheetUp 0.22s cubic-bezier(0.2, 0.7, 0.3, 1);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}
@keyframes shopSheetUp {
    from { transform: translateY(100%); }
    to   { transform: translateY(0); }
}

/* drag handle (iOS-style) */
.shop-sheet::before {
    content: '';
    display: block;
    width: 36px;
    height: 5px;
    border-radius: 999px;
    background: var(--tg-theme-hint-color, rgba(255,255,255,0.3));
    opacity: 0.5;
    margin: 0 auto 14px;
}

.shop-sheet h2 {
    margin: 0 0 4px;
    text-align: center;
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -0.2px;
}
.shop-sheet p {
    margin: 0 0 18px;
    text-align: center;
    font-size: 14px;
    color: var(--tg-theme-hint-color, rgba(255,255,255,0.55));
}

.shop-free-banner {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #f9a825, #e65100);
    border: none;
    border-radius: 12px;
    color: #fff;
    cursor: pointer;
    text-align: left;
    transition: filter 0.15s, transform 0.15s;
    font-family: inherit;
    box-shadow: 0 4px 14px rgba(230, 81, 0, 0.35);
}
.shop-free-banner:hover  { filter: brightness(1.08); }
.shop-free-banner:active { transform: scale(0.98); }
.shop-free-icon {
    font-size: 24px;
    flex-shrink: 0;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.2));
}
.shop-free-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.shop-free-text strong {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 1px 1px rgba(0,0,0,0.15);
}
.shop-free-text small {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.92);
    font-weight: 500;
}
.shop-free-arrow {
    font-size: 22px;
    line-height: 1;
    color: rgba(255, 255, 255, 0.85);
    flex-shrink: 0;
}

.shop-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.shop-item {
    position: relative;
    padding: 16px 12px;
    border: none;
    border-radius: 12px;
    background: var(--tg-theme-secondary-bg-color, rgba(255, 255, 255, 0.06));
    color: var(--tg-theme-text-color, #fff);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: background 0.15s, transform 0.15s;
    font-family: inherit;
}
.shop-item:hover  { background: color-mix(in srgb, var(--tg-theme-secondary-bg-color, rgba(255,255,255,0.06)) 80%, white); }
.shop-item:active { transform: scale(0.97); }
.shop-item:disabled { opacity: 0.4; cursor: not-allowed; }

.shop-coins {
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -0.2px;
}
.shop-price {
    font-size: 13px;
    font-weight: 600;
    color: var(--tg-theme-link-color, #2ea6ff);
    display: inline-flex;
    align-items: center;
    gap: 3px;
}
.shop-bonus {
    position: absolute;
    top: 6px;
    right: 6px;
    background: var(--tg-theme-destructive-text-color, #ef5b5b);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 999px;
    letter-spacing: 0.3px;
}

.shop-close {
    position: absolute;
    top: 8px;
    right: 12px;
    background: none;
    border: none;
    color: var(--tg-theme-hint-color, rgba(255,255,255,0.55));
    font-size: 22px;
    cursor: pointer;
    line-height: 1;
    padding: 6px;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.15s;
}
.shop-close:hover {
    background: var(--tg-theme-secondary-bg-color, rgba(255,255,255,0.08));
    color: var(--tg-theme-text-color, #fff);
}

/* Promo code section */
.shop-promo {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--tg-theme-section-separator-color, rgba(255,255,255,0.08));
}
.shop-promo-label {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--tg-theme-text-color, #fff);
}
.shop-promo-row {
    display: flex;
    gap: 8px;
}
.shop-promo-input {
    flex: 1;
    min-width: 0;
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid var(--tg-theme-section-separator-color, rgba(255,255,255,0.15));
    background: var(--tg-theme-secondary-bg-color, rgba(255,255,255,0.06));
    color: var(--tg-theme-text-color, #fff);
    font-size: 15px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    outline: none;
}
.shop-promo-input::placeholder {
    color: var(--tg-theme-hint-color, rgba(255,255,255,0.4));
    text-transform: none;
    letter-spacing: normal;
    font-weight: 400;
}
.shop-promo-input:focus {
    border-color: #2ea6ff;
}
.shop-promo-btn {
    flex: 0 0 auto;
    padding: 12px 18px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #2ea6ff, #1c89e0);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.12s, opacity 0.2s;
}
.shop-promo-btn:active   { transform: scale(0.96); }
.shop-promo-btn:disabled { opacity: 0.6; cursor: default; }
.shop-promo-msg {
    min-height: 1.2em;
    margin-top: 8px;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
}
.shop-promo-msg.ok  { color: #4caf50; }
.shop-promo-msg.err { color: #ff6b6b; }