/* ==========================================================================
   المودال الموحّد (PWA): زر واحد يثبّت التطبيق ويفعّل الإشعارات.
   يخدم أيضاً زر إلغاء الاشتراك العائم (.push-off).
   الألوان من متغيّرات الثيم: --brand / --brand-light / --brand-rgb / --on-brand
   (كلها بقيم احتياطية حتى لا يعتمد الملف على أي ثيم بعينه).
   ========================================================================== */

/* ui.js يضيف هذا الكلاس بلا قاعدة CSS — نعرّفه هنا لقفل تمرير الخلفية */
body.no-scroll { overflow: hidden; }

/* ---------- الخلفية المعتمة ---------- */
.pwa-sheet {
    position: fixed;
    inset: 0;
    z-index: 150;
    display: grid;
    place-items: center;
    padding: 20px 16px calc(20px + env(safe-area-inset-bottom, 0px));
    background: rgba(0, 0, 0, .6);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity .3s ease;
    overflow-y: auto;
    overscroll-behavior: contain;
    direction: rtl;
    text-align: center;
    font-family: "Tajawal", "IBM Plex Sans Arabic", "Cairo", sans-serif;
}

.pwa-sheet.is-on { opacity: 1; }
.pwa-sheet[hidden] { display: none !important; }

/* ---------- اللمعة الدائرية حول المودال ---------- */
.pwa-modal__wrap {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 380px;
    margin: auto;
}

.pwa-modal__ring {
    position: absolute;
    inset: -3px;
    border-radius: 27px;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.pwa-modal__ring::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 240%;
    height: 240%;
    min-width: 260px;
    min-height: 260px;
    transform: translate(-50%, -50%);
    background: conic-gradient(
        from 0deg,
        transparent 0%,
        var(--brand, #0066cc) 10%,
        transparent 20%,
        transparent 50%,
        var(--brand-light, #4d99e6) 60%,
        transparent 70%,
        transparent 100%
    );
    animation: ring-spin 4s linear infinite;
}

@keyframes ring-spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to   { transform: translate(-50%, -50%) rotate(360deg); }
}

/* منطقة الإغلاق بالضغط على الخلفية (تحت البطاقة) */
.pwa-modal__scrim {
    position: absolute;
    inset: 0;
    z-index: 0;
    border: 0;
    padding: 0;
    background: transparent;
}

/* ---------- البطاقة ---------- */
.pwa-modal__card {
    position: relative;
    z-index: 1;
    display: grid;
    justify-items: center;
    gap: 12px;
    width: 100%;
    padding: 32px 24px;
    border-radius: 24px;
    background: #ffffff;
    color: #1f1a26;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .4);
    animation: pwa-modal-up .35s cubic-bezier(.22, 1, .36, 1) both;
}

@keyframes pwa-modal-up {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---------- المحتوى ---------- */
/* اللوجو يلفّ حول محوره مثل العملة — الوجهان يحملان اللوجو نفسه. */
.pwa-coin {
    position: relative;
    display: block;
    width: 96px;
    height: 96px;
    transform-style: preserve-3d;
    animation: pwa-coin-flip 4s ease-in-out infinite;
}

.pwa-coin__face {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: 24px;
    object-fit: contain;
    background: rgba(var(--brand-rgb, 0, 102, 204), .08);
    box-shadow: 0 12px 28px rgba(0, 0, 0, .16), 0 0 0 1px rgba(var(--brand-rgb, 0, 102, 204), .12);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.pwa-coin__face--back { transform: rotateY(180deg); }

@keyframes pwa-coin-flip {
    0%   { transform: rotateY(0deg); }
    42%  { transform: rotateY(180deg); }
    58%  { transform: rotateY(180deg); }
    100% { transform: rotateY(360deg); }
}

.pwa-modal__title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 800;
    line-height: 1.5;
    color: #1f1a26;
}

.pwa-modal__hint {
    margin: -6px 0 4px;
    font-size: .88rem;
    font-weight: 600;
    line-height: 1.7;
    color: rgba(0, 0, 0, .55);
}

/* ---------- الزر: تدرّج متحرك + نبضة إضاءة + لمعة تمر ---------- */
.pwa-btn {
    position: relative;
    overflow: hidden;
    width: 100%;
    padding: 16px 24px;
    border: none;
    border-radius: 14px;
    background-image: linear-gradient(135deg,
        var(--brand, #0066cc) 0%,
        var(--brand-light, #4d99e6) 50%,
        var(--brand, #0066cc) 100%);
    background-size: 200% 200%;
    background-position: 0% 50%;
    color: #ffffff;
    font: inherit;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    animation: btn-pulse-glow 2s ease-in-out infinite;
    transition: transform .2s;
}

.pwa-btn:hover { transform: scale(1.02); }
.pwa-btn:active { transform: scale(.99); }
.pwa-btn:disabled { cursor: default; opacity: .85; }

@keyframes btn-pulse-glow {
    0%, 100% {
        box-shadow:
            0 0 0 0 rgba(var(--brand-rgb, 0, 102, 204), .7),
            0 8px 24px rgba(var(--brand-rgb, 0, 102, 204), .4);
        background-position: 0% 50%;
    }
    50% {
        box-shadow:
            0 0 0 16px rgba(var(--brand-rgb, 0, 102, 204), 0),
            0 12px 32px rgba(var(--brand-rgb, 0, 102, 204), .6);
        background-position: 100% 50%;
    }
}

/* لمعة تمر على الزر */
.pwa-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .4), transparent);
    animation: btn-sheen 3s ease-in-out infinite;
    pointer-events: none;
}

@keyframes btn-sheen {
    0% { left: -100%; }
    50% { left: 100%; }
    100% { left: 100%; }
}

/* ---------- زر «لاحقاً» — خط أبهت ---------- */
.pwa-later {
    display: block;
    margin: 16px auto 0;
    padding: 8px 16px;
    background: transparent;
    border: none;
    color: rgba(0, 0, 0, .4);
    font: inherit;
    font-size: 14px;
    font-weight: 400;
    text-decoration: none;
    cursor: pointer;
    transition: color .2s;
}

.pwa-later:hover { color: rgba(0, 0, 0, .7); }


/* ---------- شاشات صغيرة ---------- */
@media (max-width: 420px) {
    .pwa-modal__card { padding: 26px 18px; gap: 10px; border-radius: 22px; }
    .pwa-modal__ring { border-radius: 25px; }
    .pwa-coin { width: 80px; height: 80px; }
    .pwa-coin__face { border-radius: 20px; }
    .pwa-modal__title { font-size: 1.1rem; }
    .pwa-btn { padding: 15px 20px; font-size: 15px; }
}

/* ---------- احترام تفضيل تقليل الحركة ---------- */
@media (prefers-reduced-motion: reduce) {
    .pwa-modal__ring::before,
    .pwa-coin,
    .pwa-btn,
    .pwa-btn::before { animation: none !important; }
    .pwa-modal__card { animation: none !important; }
    .pwa-btn:hover { transform: none; }
}