/* ==========================================================================
   البرز هاب - افکت‌های بصری سراسری (اسکرول ریویل، هاور مگنتیک، گرادیانت
   متحرک هروها، دکمه بازگشت به بالا). هماهنگ با سیستم رنگ سایت
   (#f5b901 طلایی / #1e293b سرمه‌ای) و با احترام به prefers-reduced-motion.
   ========================================================================== */

@media (prefers-reduced-motion: no-preference) {
    .alborz-reveal-init {
        opacity: 0;
        transform: translateY(28px);
        transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);
        will-change: opacity, transform;
    }
    .alborz-reveal-init.alborz-reveal-visible {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- گرادیانت متحرک هروهای تیره ---------- */
@media (prefers-reduced-motion: no-preference) {
    .alborz-page-hero::before,
    .alborz-shop-hero::before,
    .alborz-collaborate-hero::before {
        background-size: 200% 200%;
        animation: alborzHeroDrift 14s ease-in-out infinite;
    }
}
@keyframes alborzHeroDrift {
    0%, 100% { background-position: 20% 20%; }
    50% { background-position: 80% 80%; }
}

/* ---------- دکمه‌های مگنتیک با درخشش دنبال‌کننده نشانگر ---------- */
.alborz-magnetic {
    position: relative;
    overflow: hidden;
    transition: transform .25s cubic-bezier(.2,.9,.3,1.3);
    transform: translate(var(--amx, 0), var(--amy, 0));
}
.alborz-magnetic::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(circle at var(--agx, 50%) var(--agy, 50%), rgba(255,255,255,.45), transparent 60%);
    opacity: 0;
    transition: opacity .35s ease;
    pointer-events: none;
}
.alborz-magnetic:hover::after { opacity: 1; }

/* ---------- میکرو-اینتراکشن کارت‌های عمومی ---------- */
.alborz-hover-pop {
    transition: transform .35s cubic-bezier(.2,.9,.3,1.1), box-shadow .35s ease, border-color .35s ease;
}
.alborz-hover-pop:hover {
    transform: translateY(-6px);
    box-shadow: 0 22px 44px rgba(15,23,42,.12);
}

/* ---------- دکمه شناور بازگشت به بالا ---------- */
.alborz-back-to-top,
.alborz-back-to-top:active,
.alborz-back-to-top:hover,
.alborz-back-to-top:visited {
    position: fixed;
    left: 24px;
    bottom: 24px;
    width: 50px;
    height: 50px;
    border-radius: 50% !important;
    background: #fff;
    border: none !important;
    outline: none !important;
    box-shadow: 0 8px 24px rgba(15,23,42,.18) !important;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 9995;
    opacity: 0;
    visibility: hidden;
    transform: translateY(14px) scale(.85);
    transition: opacity .3s ease, transform .3s ease, background .25s ease;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
    -webkit-appearance: none;
    appearance: none;
    forced-color-adjust: none;
}
.alborz-back-to-top:focus { outline: none; }
.alborz-back-to-top:focus-visible {
    outline: none;
    box-shadow: 0 8px 24px rgba(15,23,42,.18), 0 0 0 3px rgba(245,185,1,.55);
}
.alborz-back-to-top.alborz-show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}
.alborz-back-to-top:hover { background: #f5b901; }
.alborz-back-to-top:hover .alborz-btt-arrow { color: #1e293b; }
.alborz-back-to-top .alborz-btt-arrow {
    position: relative;
    width: 18px;
    height: 18px;
    color: #1e293b;
    transition: color .25s ease, transform .25s ease;
}
.alborz-back-to-top:hover .alborz-btt-arrow { transform: translateY(-2px); }
.alborz-back-to-top .alborz-btt-ring {
    position: absolute;
    inset: 0;
    width: 50px;
    height: 50px;
    transform: rotate(-90deg);
}
.alborz-back-to-top .alborz-btt-track { fill: none; stroke: #e2e8f0; stroke-width: 3; }
.alborz-back-to-top .alborz-btt-bar { fill: none; stroke: #f5b901; stroke-width: 3; stroke-linecap: round; transition: stroke-dashoffset .15s linear; }

@media (max-width: 992px) {
    .alborz-back-to-top { bottom: 92px; }
}
@media (max-width: 480px) {
    .alborz-back-to-top { left: 14px; width: 44px; height: 44px; }
    .alborz-back-to-top .alborz-btt-ring { width: 44px; height: 44px; }
}

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}