/* ==========================================
   ОБЩИЕ УЛУЧШЕНИЯ ДИЗАЙНА - MOLLENRO
   ========================================== */

/* Плавный скролл по всему сайту */
html {
    scroll-behavior: smooth;
}

/* ==========================================
   ПРЕЛОАДЕР (Loading Animation)
   ========================================== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #1a1a1a;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

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

.preloader__content {
    text-align: center;
}

.preloader__logo {
    font-size: clamp(64px, 12vw, 120px);
    font-weight: 300;
    letter-spacing: 0.3em;
    color: white;
    font-family: 'Playfair Display', serif;
    position: relative;
}

.preloader__logo span {
    display: inline-block;
    opacity: 0;
    animation: letterFadeIn 0.8s ease forwards;
}

.preloader__logo span:nth-child(1) { animation-delay: 0.2s; }
.preloader__logo span:nth-child(2) { animation-delay: 0.35s; }
.preloader__logo span:nth-child(3) { animation-delay: 0.5s; }
.preloader__logo span:nth-child(4) { animation-delay: 0.65s; }
.preloader__logo span:nth-child(5) { animation-delay: 0.8s; }
.preloader__logo span:nth-child(6) { animation-delay: 0.95s; }
.preloader__logo span:nth-child(7) { animation-delay: 1.1s; }
.preloader__logo span:nth-child(8) { animation-delay: 1.25s; }

.preloader__spinner {
    display: none;
}

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

/* ==========================================
   SCROLL TO TOP BUTTON
   ========================================== */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #1a1a1a;
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.scroll-to-top:hover {
    background: #333;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.scroll-to-top svg {
    width: 24px;
    height: 24px;
}

/* ==========================================
   FADE IN ON SCROLL ANIMATIONS
   ========================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Плавное появление элементов слева */
.fade-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Плавное появление элементов справа */
.fade-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ==========================================
   МИКРО-АНИМАЦИИ ДЛЯ ИНТЕРАКТИВНЫХ ЭЛЕМЕНТОВ
   ========================================== */

/* Плавные transitions для всех ссылок и кнопок */
a, button {
    transition: all 0.3s ease;
}

/* Анимация для карточек товаров */
.product-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Улучшенные тени при hover */
.product-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

/* Анимация для кнопок */
.btn, .catalog-btn, .sale-btn {
    position: relative;
    overflow: hidden;
}

.btn::after, .catalog-btn::after, .sale-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::after, .catalog-btn:hover::after, .sale-btn:hover::after {
    width: 300px;
    height: 300px;
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }

    .preloader__logo {
        font-size: 36px;
    }
}