/* ========================================
   HCTECH PREMIUM ANIMATIONS v5.0
   ظریف، حرفه‌ای، بدون اغراق
   ======================================== */

/* ===========================================
   ۱. Fade In Up — اسکرول reveal پایه
   =========================================== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================================
   ۲. Fade In — فقط opacity
   =========================================== */
.fade-in {
    opacity: 0;
    transition: opacity 0.7s ease;
}

.fade-in.visible {
    opacity: 1;
}

/* ===========================================
   ۳. Slide In Right (از راست میاد → RTL)
   =========================================== */
.slide-in-right {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ===========================================
   ۴. Slide In Left (از چپ میاد → RTL)
   =========================================== */
.slide-in-left {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ===========================================
   ۵. Scale In — بزرگ شدن نرم
   =========================================== */
.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* ===========================================
   ۶. Stagger Children — بچه‌ها با تاخیر
   =========================================== */
.stagger-children>* {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.visible>*:nth-child(1) {
    transition-delay: 0s;
}

.stagger-children.visible>*:nth-child(2) {
    transition-delay: 0.07s;
}

.stagger-children.visible>*:nth-child(3) {
    transition-delay: 0.14s;
}

.stagger-children.visible>*:nth-child(4) {
    transition-delay: 0.21s;
}

.stagger-children.visible>*:nth-child(5) {
    transition-delay: 0.28s;
}

.stagger-children.visible>*:nth-child(6) {
    transition-delay: 0.35s;
}

.stagger-children.visible>*:nth-child(7) {
    transition-delay: 0.42s;
}

.stagger-children.visible>*:nth-child(8) {
    transition-delay: 0.49s;
}

.stagger-children.visible>*:nth-child(9) {
    transition-delay: 0.56s;
}

.stagger-children.visible>* {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================================
   ۷. Pulse — زنده بودن (خیلی ملایم)
   =========================================== */
.pulse {
    animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.03);
    }
}

/* ===========================================
   ۸. Shimmer — بارگذاری
   =========================================== */
.shimmer {
    background: linear-gradient(90deg, #e5e7eb 0%, #f3f4f6 50%, #e5e7eb 100%);
    background-size: 200% 100%;
    animation: shimmer 1.8s infinite;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* ===========================================
   ۹. Spin — چرخش
   =========================================== */
.spin {
    animation: spin 1s linear infinite;
}

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

/* ===========================================
   ۱۰. Bounce — جهش ملایم
   =========================================== */
.bounce {
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

/* ===========================================
   ۱۱. Float — شناور
   =========================================== */
.float {
    animation: float 5s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.float-delay-1 {
    animation-delay: 0s;
}

.float-delay-2 {
    animation-delay: 1.5s;
}

.float-delay-3 {
    animation-delay: 3s;
}

/* ===========================================
   ۱۲. Ripple — افکت کلیک دکمه
   =========================================== */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s, opacity 0.5s;
}

.ripple:active::after {
    width: 300px;
    height: 300px;
    opacity: 0;
    transition: 0s;
}

/* ===========================================
   ۱۳. Shake — خطای فرم
   =========================================== */
.shake {
    animation: shake 0.5s ease;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

/* ===========================================
   ۱۴. Glow Hover — سایه رنگی
   =========================================== */
.glow-hover {
    transition: box-shadow 0.3s ease;
}

.glow-hover:hover {
    box-shadow: 0 0 30px rgba(142, 68, 173, 0.2);
}

.glow-hover-gold:hover {
    box-shadow: 0 0 30px rgba(199, 156, 96, 0.25);
}

/* ===========================================
   ۱۵. Underline Reveal
   =========================================== */
.underline-reveal {
    position: relative;
    display: inline-block;
}

.underline-reveal::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary, #8e44ad);
    transition: width 0.3s ease;
}

.underline-reveal:hover::after {
    width: 100%;
}

/* ===========================================
   ۱۶. Skeleton Pulse
   =========================================== */
.skeleton {
    background: #e5e7eb;
    border-radius: 8px;
    animation: skeleton 1.6s ease-in-out infinite;
}

@keyframes skeleton {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }
}

/* ===========================================
   ۱۷. Back to Top Button
   =========================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    background: var(--color-primary, #8e44ad);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 20px rgba(142, 68, 173, 0.3);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: all 0.3s ease;
    z-index: 500;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(142, 68, 173, 0.4);
}

/* ===========================================
   ۱۸. Scroll Progress Bar
   =========================================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary, #8e44ad), var(--color-accent, #FFD700));
    z-index: 2000;
    width: 0%;
    transition: width 0.1s linear;
}

/* ===========================================
   ۱۹. Magnetic Hover (کمکی برای JS)
   =========================================== */
.magnetic {
    transition: transform 0.2s ease;
}

/* ===========================================
   ۲۰. Gradient Text
   =========================================== */
.gradient-text {
    background: linear-gradient(135deg, var(--color-primary, #8e44ad), var(--color-gold, #c79c60));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===========================================
   ۲۱. Reduced Motion
   =========================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}