/* Preloader — экран загрузки VisiQ (NEON). Переменные из style.css. */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--bg, #080D16);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    overflow: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

/* Атмосферные пульсирующие пятна */
.preloader::before,
.preloader::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(85px);
    pointer-events: none;
}
.preloader::before {
    width: 320px; height: 320px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.40), transparent 70%);
    top: 18%; left: 14%;
    animation: plGlow 4s ease-in-out infinite;
}
.preloader::after {
    width: 360px; height: 360px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.30), transparent 70%);
    bottom: 14%; right: 10%;
    animation: plGlow 4s ease-in-out infinite 2s;
}
@keyframes plGlow {
    0%, 100% { opacity: 0.45; transform: scale(1); }
    50%      { opacity: 0.85; transform: scale(1.15); }
}

.preloader.hide {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
}

.preloader-logo {
    width: 96px;
    height: 96px;
    object-fit: contain;
    animation: plLogoIn 0.6s ease both, plLogoBreathe 2.4s ease-in-out 0.6s infinite;
}
@keyframes plLogoIn {
    from { opacity: 0; transform: scale(0.6); }
    to   { opacity: 1; transform: scale(1); }
}
@keyframes plLogoBreathe {
    0%, 100% { transform: scale(1);    filter: drop-shadow(0 0 18px rgba(139, 92, 246, 0.5)); }
    50%      { transform: scale(1.06); filter: drop-shadow(0 0 36px rgba(139, 92, 246, 0.85)); }
}

.preloader-title {
    font-size: 30px;
    font-weight: 900;
    letter-spacing: 2px;
    background: var(--grad-main, linear-gradient(135deg, #8B5CF6, #3B82F6, #35F2A1));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-top: -8px;
}

.preloader-progress {
    width: 220px;
    max-width: 70vw;
    height: 4px;
    background: rgba(139, 92, 246, 0.12);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: inset 0 0 0 1px rgba(139, 92, 246, 0.10);
}

.preloader-progress-bar {
    width: 0%;
    height: 100%;
    background: var(--grad-main, linear-gradient(90deg, #8B5CF6, #3B82F6, #35F2A1));
    border-radius: 10px;
    transition: width 0.15s ease;
    box-shadow: 0 0 12px rgba(139, 92, 246, 0.7);
    position: relative;
    overflow: hidden;
}
.preloader-progress-bar::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.55), transparent);
    transform: translateX(-100%);
    animation: plShine 1.2s ease-in-out infinite;
}
@keyframes plShine {
    to { transform: translateX(100%); }
}

.preloader-text {
    font-size: 12px;
    font-weight: 700;
    color: var(--dim, #7C7690);
    letter-spacing: 2px;
    margin-top: -8px;
}

@media (max-width: 480px) {
    .preloader-logo { width: 80px; height: 80px; }
    .preloader-title { font-size: 26px; }
    .preloader-progress { width: 180px; }
}