/* ===================================
   Базовые стили и сброс
   =================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-gold: #D4AF37;
    --color-white: #FFFFFF;
    --color-black: #1A1A1A;
    --color-gray: #666666;
    --color-light-gray: #F5F5F5;
    --color-border: #E0E0E0;

    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-black);
    line-height: 1.6;
    background-color: var(--color-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

.section__title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--color-black);
}

.section__subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-gray);
    margin-bottom: 3rem;
}

/* ===================================
   Header
   =================================== */

.header {
    background: var(--color-white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.header__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo h1 {
    font-size: 1.5rem;
    color: var(--color-gold);
    margin-bottom: 0.25rem;
}

.header__tagline {
    font-size: 0.875rem;
    color: var(--color-gray);
}

.nav__list {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav__list a {
    color: var(--color-black);
    font-weight: 600;
    transition: var(--transition);
    font-size: 0.9rem;
}

.nav__list a:hover {
    color: var(--color-gold);
}

.nav__cta {
    background: var(--color-gold);
    color: var(--color-white);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    transition: var(--transition);
}

.nav__cta:hover {
    background: #c49d2f;
    color: var(--color-white);
    transform: translateY(-2px);
}

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
}

.burger span {
    width: 25px;
    height: 3px;
    background: var(--color-black);
    transition: var(--transition);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
    padding: 5rem 0;
    text-align: center;
}

.hero__title {
    font-size: 3rem;
    max-width: 900px;
    margin: 0 auto 1.5rem;
    color: var(--color-black);
}

.hero__subtitle {
    font-size: 1.25rem;
    color: var(--color-gray);
    margin-bottom: 2rem;
}

.hero__buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    display: inline-block;
}

.btn--primary {
    background: var(--color-gold);
    color: var(--color-white);
}

.btn--primary:hover {
    background: #c49d2f;
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(212, 175, 55, 0.4);
}

.btn--secondary {
    background: var(--color-white);
    color: var(--color-black);
    border: 2px solid var(--color-gold);
}

.btn--secondary:hover {
    background: var(--color-gold);
    color: var(--color-white);
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.stat {
    text-align: center;
}

.stat__number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gold);
    font-family: var(--font-heading);
}

.stat__label {
    font-size: 0.9rem;
    color: var(--color-gray);
}

/* ===================================
   About Section
   =================================== */

.about {
    padding: 5rem 0;
    background: var(--color-white);
}

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about__text h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--color-gold);
}

.about__text p {
    margin-bottom: 1rem;
    color: var(--color-gray);
    line-height: 1.8;
}

.about__features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.feature {
    background: var(--color-light-gray);
    padding: 1.5rem;
    border-radius: 10px;
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.feature__icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.feature h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.feature p {
    font-size: 0.9rem;
    color: var(--color-gray);
}

/* ===================================
   Audience Section
   =================================== */

.audience {
    padding: 5rem 0;
    background: var(--color-light-gray);
}

.audience__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.audience__card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.audience__card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.audience__icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.audience__card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--color-black);
}

.audience__card > p {
    font-size: 0.95rem;
    color: var(--color-gray);
    margin-bottom: 1.5rem;
}

.audience__list {
    text-align: left;
    padding-left: 1rem;
}

.audience__list li {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.audience__list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-gold);
    font-weight: bold;
}

/* ===================================
   Products Section
   =================================== */

.products {
    padding: 5rem 0;
    background: var(--color-white);
}

.products__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.product__card {
    background: var(--color-light-gray);
    padding: 2rem 1.5rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
}

.product__card:hover {
    background: var(--color-gold);
    color: var(--color-white);
    transform: translateY(-5px);
}

.product__image {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.product__card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.product__card p {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ===================================
   Advantages Section
   =================================== */

.advantages {
    padding: 5rem 0;
    background: var(--color-light-gray);
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.advantage {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 3px 15px rgba(0,0,0,0.05);
}

.advantage:hover {
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
    transform: translateY(-5px);
}

.advantage__icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.advantage h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--color-black);
}

.advantage p {
    color: var(--color-gray);
    line-height: 1.7;
}

/* ===================================
   Process Section
   =================================== */

.process {
    padding: 5rem 0;
    background: var(--color-white);
}

.process__wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.process__block {
    background: var(--color-light-gray);
    padding: 2.5rem;
    border-radius: 15px;
}

.process__block h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--color-gold);
}

.process__description {
    color: var(--color-gray);
    margin-bottom: 2rem;
}

.step {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.step:last-child {
    margin-bottom: 0;
}

.step__number {
    width: 50px;
    height: 50px;
    background: var(--color-gold);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.step__content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.step__content p {
    font-size: 0.9rem;
    color: var(--color-gray);
}

/* ===================================
   Gallery Section
   =================================== */

.gallery {
    padding: 5rem 0;
    background: var(--color-light-gray);
}

.gallery__categories {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.gallery__filter {
    padding: 0.75rem 1.5rem;
    background: var(--color-white);
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
}

.gallery__filter:hover,
.gallery__filter.active {
    background: var(--color-gold);
    color: var(--color-white);
    border-color: var(--color-gold);
}

.gallery__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.gallery__item {
    aspect-ratio: 1;
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition);
}

.gallery__item:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.gallery__placeholder {
    width: 100%;
    height: 100%;
    background: var(--color-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.gallery__placeholder span {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.gallery__placeholder p {
    font-size: 0.9rem;
    color: var(--color-gray);
}

.gallery__note {
    text-align: center;
    color: var(--color-gray);
    font-style: italic;
    font-size: 0.9rem;
}

/* ===================================
   Reviews Section
   =================================== */

.reviews {
    padding: 5rem 0;
    background: var(--color-white);
}

.reviews__stats {
    display: flex;
    justify-content: center;
    gap: 5rem;
    margin-bottom: 3rem;
}

.reviews__stat {
    text-align: center;
}

.reviews__number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-gold);
    font-family: var(--font-heading);
}

.reviews__label {
    font-size: 1rem;
    color: var(--color-gray);
}

.reviews__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.review {
    background: var(--color-light-gray);
    padding: 2rem;
    border-radius: 15px;
    transition: var(--transition);
}

.review:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.review__stars {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.review__text {
    color: var(--color-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.review__author strong {
    color: var(--color-black);
}

/* ===================================
   FAQ Section
   =================================== */

.faq {
    padding: 5rem 0;
    background: var(--color-light-gray);
}

.faq__list {
    max-width: 900px;
    margin: 0 auto;
}

.faq__item {
    background: var(--color-white);
    margin-bottom: 1rem;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.faq__question {
    width: 100%;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    font-weight: 600;
    font-size: 1.05rem;
    transition: var(--transition);
}

.faq__question:hover {
    background: var(--color-light-gray);
}

.faq__icon {
    font-size: 1.5rem;
    color: var(--color-gold);
    transition: var(--transition);
}

.faq__item.active .faq__icon {
    transform: rotate(45deg);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq__item.active .faq__answer {
    max-height: 500px;
}

.faq__answer p {
    padding: 0 2rem 1.5rem;
    color: var(--color-gray);
    line-height: 1.7;
}

.faq__answer p:not(:last-child) {
    margin-bottom: 1rem;
}

/* ===================================
   Buy Section
   =================================== */

.buy {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--color-gold) 0%, #c49d2f 100%);
    color: var(--color-white);
}

.buy .section__title,
.buy .section__subtitle {
    color: var(--color-white);
}

.buy__buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.marketplace {
    background: var(--color-white);
    color: var(--color-black);
    padding: 2rem;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: var(--transition);
}

.marketplace:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.marketplace__icon {
    font-size: 3rem;
}

.marketplace__content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.marketplace__content p {
    color: var(--color-gray);
    font-size: 0.9rem;
}

.buy__info {
    text-align: center;
    background: rgba(255,255,255,0.2);
    padding: 1.5rem;
    border-radius: 10px;
    max-width: 700px;
    margin: 0 auto;
}

.buy__info p {
    margin: 0;
    font-size: 1.05rem;
}

/* ===================================
   Footer
   =================================== */

.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: 3rem 0 1rem;
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer__brand h3 {
    font-size: 1.5rem;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.footer__brand p {
    margin-bottom: 0.5rem;
}

.footer__description {
    color: #999;
    font-size: 0.9rem;
}

.footer h4 {
    margin-bottom: 1rem;
    color: var(--color-gold);
}

.footer ul li {
    margin-bottom: 0.5rem;
}

.footer a {
    color: #ccc;
    transition: var(--transition);
}

.footer a:hover {
    color: var(--color-gold);
}

.footer__bottom {
    border-top: 1px solid #333;
    padding-top: 2rem;
    text-align: center;
    color: #999;
}

.footer__bottom p {
    margin-bottom: 0.5rem;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 992px) {
    .section__title {
        font-size: 2rem;
    }

    .hero__title {
        font-size: 2.5rem;
    }

    .hero__stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .about__content {
        grid-template-columns: 1fr;
    }

    .audience__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .advantages__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process__wrapper {
        grid-template-columns: 1fr;
    }

    .gallery__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .buy__buttons {
        grid-template-columns: 1fr;
    }

    .footer__content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .burger {
        display: flex;
    }

    .nav.active {
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        padding: 1rem 0;
    }

    .nav.active .nav__list {
        flex-direction: column;
        gap: 0;
    }

    .nav.active .nav__list li {
        width: 100%;
        text-align: center;
        padding: 1rem;
        border-bottom: 1px solid var(--color-border);
    }

    .hero__title {
        font-size: 2rem;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

    .hero__buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .audience__grid {
        grid-template-columns: 1fr;
    }

    .products__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages__grid {
        grid-template-columns: 1fr;
    }

    .gallery__grid {
        grid-template-columns: 1fr;
    }

    .reviews__grid {
        grid-template-columns: 1fr;
    }

    .footer__content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .section__title {
        font-size: 1.75rem;
    }

    .hero__title {
        font-size: 1.75rem;
    }

    .hero__stats {
        grid-template-columns: 1fr;
    }

    .products__grid {
        grid-template-columns: 1fr;
    }
}