:root {
    --allen-overlay-bg: #0b0a14;
    --allen-overlay-surface: rgba(31, 24, 52, 0.98);
    --allen-overlay-border: rgba(255, 255, 255, 0.16);
    --allen-overlay-text: #f7f5ff;
    --allen-overlay-muted: rgba(247, 245, 255, 0.68);
    --allen-overlay-accent: #d7f95b;
}

.subpage-toolbar {
    display: flex;
    justify-content: flex-start;
    direction: ltr;
    width: 100%;
    margin: 0 0 10px;
    padding-inline: 2px;
}

.page-back-button {
    appearance: none;
    min-width: 104px;
    min-height: 44px;
    padding: 0 15px;
    border: 1px solid var(--allen-overlay-border);
    border-radius: 999px;
    background: rgba(24, 18, 41, 0.86);
    color: var(--allen-overlay-text);
    box-shadow: 0 12px 30px rgba(7, 6, 16, 0.28);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    direction: rtl;
    font-family: "Cairo", "Tajawal", sans-serif;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.page-back-button:hover,
.page-back-button:focus-visible {
    border-color: rgba(215, 249, 91, 0.48);
    background: rgba(43, 33, 68, 0.96);
    outline: none;
    transform: translateY(-1px);
}

.page-back-button i {
    color: var(--allen-overlay-accent);
}

.allen-payment-layer {
    position: fixed;
    inset: 0;
    z-index: 2000;
    padding: max(14px, env(safe-area-inset-top)) 14px max(14px, env(safe-area-inset-bottom));
    display: grid;
    place-items: center;
    background: rgba(5, 4, 11, 0.76);
    backdrop-filter: blur(18px) saturate(1.1);
    -webkit-backdrop-filter: blur(18px) saturate(1.1);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 220ms ease, visibility 220ms ease;
}

.allen-payment-layer.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.allen-payment-dialog {
    width: min(980px, 100%);
    height: min(860px, calc(100dvh - 28px - env(safe-area-inset-top) - env(safe-area-inset-bottom)));
    min-height: 540px;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    overflow: hidden;
    border: 1px solid var(--allen-overlay-border);
    border-radius: 28px;
    background: var(--allen-overlay-surface);
    box-shadow: 0 32px 100px rgba(0, 0, 0, 0.58);
    transform: translateY(18px) scale(0.985);
    transition: transform 260ms cubic-bezier(0.2, 0.82, 0.2, 1);
}

.allen-payment-layer.is-open .allen-payment-dialog {
    transform: translateY(0) scale(1);
}

.allen-payment-bar {
    min-height: 72px;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    direction: rtl;
    border-bottom: 1px solid var(--allen-overlay-border);
    background: linear-gradient(135deg, rgba(123, 47, 247, 0.2), rgba(192, 38, 211, 0.1));
    color: var(--allen-overlay-text);
}

.allen-payment-title {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 11px;
    font-family: "Cairo", "Tajawal", sans-serif;
}

.allen-payment-title i {
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: rgba(215, 249, 91, 0.12);
    color: var(--allen-overlay-accent);
}

.allen-payment-title strong,
.allen-payment-title small {
    display: block;
}

.allen-payment-title strong {
    font-size: 16px;
    line-height: 1.4;
}

.allen-payment-title small {
    margin-top: 2px;
    color: var(--allen-overlay-muted);
    font-size: 11px;
}

.allen-payment-close {
    appearance: none;
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
    border: 1px solid var(--allen-overlay-border);
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, 0.06);
    color: var(--allen-overlay-text);
    cursor: pointer;
}

.allen-payment-body {
    position: relative;
    min-height: 0;
    background: #fff;
}

.allen-payment-frame {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
    background: #fff;
}

.allen-payment-loading {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: grid;
    place-items: center;
    gap: 12px;
    align-content: center;
    background: var(--allen-overlay-bg);
    color: var(--allen-overlay-text);
    font-family: "Cairo", "Tajawal", sans-serif;
    transition: opacity 180ms ease, visibility 180ms ease;
}

.allen-payment-loading.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.allen-payment-spinner {
    width: 44px;
    height: 44px;
    border: 3px solid rgba(255, 255, 255, 0.14);
    border-top-color: var(--allen-overlay-accent);
    border-radius: 50%;
    animation: allenPaymentSpin 700ms linear infinite;
}

body.allen-payment-open {
    overflow: hidden !important;
}

@keyframes allenPaymentSpin {
    to { transform: rotate(360deg); }
}

@media (max-width: 640px) {
    .subpage-toolbar {
        margin-bottom: 8px;
    }

    .page-back-button {
        min-width: 94px;
        min-height: 40px;
        padding: 0 13px;
        font-size: 12px;
    }

    .allen-payment-layer {
        padding: 0;
    }

    .allen-payment-dialog {
        width: 100%;
        height: 100dvh;
        min-height: 0;
        border: 0;
        border-radius: 0;
    }

    .allen-payment-bar {
        min-height: calc(66px + env(safe-area-inset-top));
        padding: calc(9px + env(safe-area-inset-top)) 10px 9px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .allen-payment-layer,
    .allen-payment-dialog,
    .page-back-button {
        transition: none;
    }
}