/* ==============================
   کی‌فریم‌های انیمیشن
   ============================== */
@keyframes loaderPulse {
    0%, 100% { transform: scale(1);    opacity: 1;   }
    50%       { transform: scale(1.1); opacity: 0.8; }
}

@keyframes dotBounce {
    0%, 80%, 100% { transform: scale(1);   }
    40%            { transform: scale(1.5); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0);    }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-24px); }
    to   { opacity: 1; transform: translateY(0);     }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to   { opacity: 1; transform: scale(1);   }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(30px); }
    to   { opacity: 1; transform: translateX(0);    }
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0   rgba(108,63,197,0.4); }
    50%       { box-shadow: 0 0 0 12px rgba(108,63,197,0);   }
}

@keyframes shimmer {
    0%   { background-position: -1000px 0; }
    100% { background-position:  1000px 0; }
}

/* ==============================
   کلاس‌های انیمیشن
   ============================== */
.animate-fade-up   { animation: fadeInUp   0.6s ease forwards; }
.animate-fade-down { animation: fadeInDown 0.6s ease forwards; }
.animate-fade      { animation: fadeIn     0.5s ease forwards; }
.animate-scale     { animation: scaleIn    0.5s ease forwards; }

/* تاخیر انیمیشن */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* ==============================
   اسکلتون لودینگ
   ============================== */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--border-light) 25%,
        var(--border)       50%,
        var(--border-light) 75%
    );
    background-size: 1000px 100%;
    animation:       shimmer 1.8s infinite linear;
    border-radius:   var(--radius-sm);
}

.skeleton-cover {
    width:          100%;
    padding-bottom: 100%;
}

.skeleton-text {
    height:        14px;
    margin-bottom: 8px;
    width:         80%;
}

.skeleton-text.short { width: 50%; }

/* ==============================
   هاور افکت‌ها
   ============================== */
.hover-lift {
    transition: var(--transition);
}

.hover-lift:hover {
    transform:  translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.hover-scale {
    transition: transform 0.3s ease;
}

.hover-scale:hover {
    transform: scale(1.03);
}

/* ==============================
   تغییر تم - انیمیشن
   ============================== */
body {
    transition: background-color 0.4s ease,
                color            0.4s ease;
}

.card,
#mainNav,
.form-control,
.modal-content {
    transition: background-color 0.4s ease,
                border-color     0.4s ease,
                box-shadow       0.3s ease;
}

/* ==============================
   دکمه پخش - پالس
   ============================== */
.play-btn-pulse {
    animation: pulse 2s infinite;
}

/* ==============================
   ترنزیشن صفحه
   ============================== */
.page-transition {
    animation: fadeIn 0.4s ease;
}