/* ===========================================
   SamSam — Корпусная мебель на заказ
   Основные стили
   =========================================== */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #2c3e50;
    --color-accent: #e67e22;
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-500: #6b7280;
    --color-gray-700: #374151;
    --color-gray-900: #111827;

    --header-height: 70px;
    --container-max: 1200px;
    --container-padding: 20px;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-900);
    background: var(--color-gray-50);
}

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

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

/* ---------- Container ---------- */
.header__container,
.footer__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===========================================
   HEADER
   =========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    height: var(--header-height);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 24px;
}

/* --- Logo --- */
.header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.header__logo-img {
    height: 40px;
    width: auto;
}

.header__logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

/* --- Navigation --- */
.header__nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header__nav-link {
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-gray-700);
    border-radius: 6px;
    transition: color 0.2s, background 0.2s;
}

.header__nav-link:hover {
    color: var(--color-primary);
    background: var(--color-gray-100);
}

/* --- Right block --- */
.header__right {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-shrink: 0;
}

.header__phone {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
    white-space: nowrap;
    transition: color 0.2s;
}

.header__phone:hover {
    color: var(--color-accent);
}

/* --- Messengers --- */
.header__messengers {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header__messenger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    color: var(--color-gray-500);
    transition: color 0.2s, background 0.2s;
}

.header__messenger:hover {
    background: var(--color-gray-100);
}

.header__messenger--max:hover {
    color: #0088cc;
}

.header__messenger--tg:hover {
    color: #0088cc;
}

.header__messenger--email:hover {
    color: var(--color-accent);
}

/* --- Burger (hidden on desktop) --- */
.header__burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: 6px;
    transition: background 0.2s;
}

.header__burger:hover {
    background: var(--color-gray-100);
}

.header__burger-line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-gray-900);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.header__burger.active .header__burger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.header__burger.active .header__burger-line:nth-child(2) {
    opacity: 0;
}

.header__burger.active .header__burger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* --- Spacer --- */
.header-spacer {
    height: var(--header-height);
}

/* ===========================================
   MOBILE MENU
   =========================================== */
.mobile-menu {
    display: none;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s;
}

.mobile-menu.active .mobile-menu__overlay {
    opacity: 1;
}

.mobile-menu__panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 300px;
    max-width: 85vw;
    background: var(--color-white);
    z-index: 2001;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active .mobile-menu__panel {
    transform: translateX(0);
}

.mobile-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-gray-200);
}

.mobile-menu__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
}

.mobile-menu__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    font-size: 24px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-gray-500);
    border-radius: 4px;
    transition: color 0.2s, background 0.2s;
}

.mobile-menu__close:hover {
    color: var(--color-gray-900);
    background: var(--color-gray-100);
}

.mobile-menu__nav {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.mobile-menu__link {
    display: block;
    padding: 12px 20px;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-gray-700);
    transition: color 0.2s, background 0.2s;
}

.mobile-menu__link:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
}

.mobile-menu__contacts {
    padding: 16px 20px;
    border-top: 1px solid var(--color-gray-200);
}

.mobile-menu__phone {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.mobile-menu__messengers {
    display: flex;
    gap: 12px;
}

.mobile-menu__messenger {
    padding: 6px 14px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-500);
    background: var(--color-gray-100);
    border-radius: 6px;
    transition: color 0.2s, background 0.2s;
}

.mobile-menu__messenger:hover {
    background: var(--color-gray-200);
    color: var(--color-primary);
}

/* ===========================================
   FOOTER
   =========================================== */
.footer {
    margin-top: 60px;
    padding: 24px 0;
    background: var(--color-primary);
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    font-size: 14px;
}

/* ===========================================
   RESPONSIVE
   =========================================== */
@media (max-width: 992px) {
    .header__nav {
        display: none;
    }

    .header__phone {
        display: none;
    }

    .header__messengers {
        display: none;
    }

    .header__burger {
        display: flex;
    }
}

@media (max-width: 480px) {
    :root {
        --header-height: 60px;
    }

    .header__logo-text {
        font-size: 18px;
    }
}