:root {
    --color-primary: #fd4747;
    --color-primary-hover: #dd3333;
    --color-text: #111827;
    --color-text-muted: #6b7280;
    --color-bg: #ffffff;
    --color-bg-light: #f3f4f6;
    --color-border: #e5e7eb;
    --container-width: 1512px;
    --radius: 4px;
    --transition: 0.2s ease;
}

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

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-primary);
}

ul {
    list-style: none;
}

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

button {
    font: inherit;
    cursor: pointer;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    border-bottom: 1px solid var(--color-border);
}

.header__top {
    background-color: #4342421C;
}

.header__top_wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 10px 0;
}

.header__logo {
    flex: 0 0 15%;
    width: auto;
}

.header__logo img {
    width: 155px;
}

.header__contacts {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.header__phone {
    font-weight: 600;
    font-size: 1.15rem;
    white-space: nowrap;
}

.header__messengers {
    display: flex;
    gap: 0.5rem;
}

.messenger {
    padding: 0.35rem 0.75rem;
    background: var(--color-bg-light);
    border-radius: var(--radius);
    font-size: 0.85rem;
}

.header__mid {
    background-color: #F2F2F2AD;
}

.header__mid_wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 10px 0;
}

.catalog-dropdown {
    flex: 0 0 10%;
    position: relative;
}

.search-wrapper {
    flex: 0 0 60%;
    position: relative;
}

.callback-wrapper {
    flex: 0 0 15%;
}

.nav__list {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-weight: 500;
    transition: background var(--transition);
}

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

.catalog-btn {
    padding: 0.6rem 1.2rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition);
    width: 100%;
}

.catalog-btn:hover {
    background: var(--color-primary-hover);
}

/* Main */
.main {
    flex: 1;
    padding: 0 0 10px 0;
}

.page-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #292929;
    font-family: "Montserrat", Sans-serif;
    font-size: 40px;
    font-weight: 800;
}

.catalog-placeholder {
    padding: 3rem;
    background: var(--color-bg-light);
    text-align: center;
    color: var(--color-text-muted);
}

/* Footer */
.footer {
    background: var(--color-bg-light);
    padding: 3rem 0 1.5rem;
    margin-top: 3rem;
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer__heading {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer__nav ul li, .footer__contacts a {
    margin-bottom: 0.6rem;
    display: block;
}

.footer__bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.footer__links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* Dropdown nav */
.nav__item_has-dropdown {
    position: relative;
}

.nav__item_has-dropdown > a::after {
    content: " ▼";
    font-size: 0.6em;
    vertical-align: middle;
}

.nav__dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 0.5rem 0;
    z-index: 1000;
}

.nav__item_has-dropdown:hover .nav__dropdown {
    display: block;
}

.nav__dropdown li {
    padding: 0;
}

.nav__dropdown a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-text);
}

.nav__dropdown a:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

.nav__list {
    position: relative;
}

/* Catalog dropdown */
.catalog-dropdown__menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 260px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    padding: 0.5rem 0;
    z-index: 1001;
}

.catalog-dropdown:hover .catalog-dropdown__menu {
    display: block;
}

.catalog-dropdown__item {
    position: relative;
}

.catalog-dropdown__item > a {
    display: block;
    padding: 0.6rem 1.2rem;
    color: var(--color-text);
}

.catalog-dropdown__item > a:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

.catalog-dropdown__item_has-sub > a::after {
    content: " ►";
    font-size: 0.6em;
    vertical-align: middle;
    margin-left: 0.5rem;
}

.catalog-dropdown__submenu {
    display: none;
    position: absolute;
    top: -5px;
    left: 100%;
    min-width: 220px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    padding: 0.5rem 0;
    z-index: 1002;
}

.catalog-dropdown__item_has-sub:hover .catalog-dropdown__submenu {
    display: block;
}

.catalog-dropdown__submenu a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-text);
}

.catalog-dropdown__submenu a:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

/* Search */
.search-input {
    padding: 0.8rem 1rem;
    padding-right: 2.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    width: 100%;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(253, 71, 71, 0.15);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
}

.search-btn:hover {
    color: var(--color-primary);
}

.search-suggestions {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    margin-top: 4px;
    z-index: 1003;
    padding: 0.5rem 0;
}

.search-wrapper:focus-within .search-suggestions {
    display: block;
}

.search-suggestions__item a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-text);
}

.search-suggestions__item a:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .header__top {
        flex-direction: column;
        align-items: flex-start;
    }

    .header__mid {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer__bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer__links {
        flex-direction: column;
        gap: 0.5rem;
    }

    .header__mid_wrapper {
        flex-direction: column;
        align-items: stretch;
    }

    .header__logo,
    .catalog-dropdown,
    .callback-wrapper {
        flex: none;
        width: 100%;
    }

    .catalog-btn {
        width: 100%;
    }

    .search-wrapper {
        flex: none;
        width: 100%;
    }
}