/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border-light);
    transition: box-shadow var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    color: var(--color-primary);
    text-decoration: none;
}

.header__logo img {
    height: 44px;
    width: auto;
}

.header__logo-text {
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    color: var(--color-primary);
}

/* Main Nav */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav__list {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.nav__link {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-text);
    padding: var(--space-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-accent);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.nav__link:hover::after,
.nav__link.active::after {
    transform: scaleX(1);
}

/* Header right side */
.header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.header__phone {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-primary);
}

.header__phone svg {
    width: 18px;
    height: 18px;
}

/* Language Switcher */
.lang-switcher {
    position: relative;
}

.lang-switcher__current {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-primary);
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.lang-switcher__current:hover {
    border-color: var(--color-primary);
}

.lang-switcher__dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    background: var(--color-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: 10;
    min-width: 120px;
}

.lang-switcher.open .lang-switcher__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-switcher__option {
    display: block;
    padding: 10px 16px;
    font-size: var(--fs-sm);
    color: var(--color-text);
    transition: background var(--transition-fast);
}

.lang-switcher__option:hover {
    background: var(--color-bg);
    color: var(--color-accent);
}

.lang-switcher__option.active {
    font-weight: var(--fw-semibold);
    color: var(--color-accent);
}

/* Mobile burger */
.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--space-sm);
    background: none;
    border: none;
}

.burger__line {
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition);
    border-radius: 2px;
}

.burger.active .burger__line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.burger.active .burger__line:nth-child(2) {
    opacity: 0;
}
.burger.active .burger__line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav Overlay */
.mobile-nav {
    display: none;
    position: fixed;
    inset: 0;
    top: var(--header-height);
    background: var(--color-white);
    z-index: 999;
    padding: var(--space-xl) var(--space-lg);
    overflow-y: auto;
}

.mobile-nav.open {
    display: block;
}

.mobile-nav__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.mobile-nav__link {
    display: block;
    font-size: var(--fs-lg);
    font-weight: var(--fw-medium);
    color: var(--color-text);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav__link.active {
    color: var(--color-accent);
}

.mobile-nav__phone {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    color: var(--color-primary);
}

.mobile-nav__lang {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

@media (max-width: 1024px) {
    .nav { display: none; }
    .header__phone { display: none; }
    .header__actions .btn { display: none; }
    .burger { display: flex; }
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    padding-top: calc(var(--header-height) + var(--space-4xl));
    padding-bottom: var(--space-4xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.hero__title {
    font-size: var(--fs-4xl);
    font-weight: var(--fw-bold);
    color: var(--color-white);
    margin-bottom: var(--space-lg);
    line-height: var(--lh-tight);
}

.hero__subtitle {
    font-size: var(--fs-lg);
    color: rgba(255,255,255,0.8);
    margin-bottom: var(--space-xl);
    line-height: var(--lh-relaxed);
}

.hero__actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero__image {
    position: relative;
}

.hero__image img {
    width: 100%;
    border-radius: var(--border-radius-lg);
}

@media (max-width: 768px) {
    .hero {
        padding-top: calc(var(--header-height) + var(--space-2xl));
        padding-bottom: var(--space-2xl);
    }
    .hero__inner { grid-template-columns: 1fr; }
    .hero__title { font-size: var(--fs-2xl); }
    .hero__image { display: none; }
}

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero {
    padding-top: calc(var(--header-height) + var(--space-2xl));
    padding-bottom: var(--space-2xl);
    background: var(--color-primary);
    color: var(--color-white);
}

.page-hero__title {
    font-size: var(--fs-3xl);
    font-weight: var(--fw-bold);
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

@media (max-width: 768px) {
    .page-hero__title { font-size: var(--fs-xl); }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--color-primary-dark);
    color: rgba(255,255,255,0.8);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer__logo {
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.footer__desc {
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-lg);
    color: rgba(255,255,255,0.6);
}

.footer__title {
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.footer__links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__links a {
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.6);
    transition: color var(--transition-fast);
}

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

.footer__contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--fs-sm);
    margin-bottom: var(--space-sm);
}

.footer__contact-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--color-accent);
}

.footer__contact-item a {
    color: rgba(255,255,255,0.8);
}

.footer__contact-item a:hover {
    color: var(--color-accent);
}

.footer__social {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: var(--color-white);
    transition: background var(--transition-fast);
}

.footer__social-link:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

.footer__social-link svg {
    width: 20px;
    height: 20px;
}

.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--fs-xs);
    color: rgba(255,255,255,0.4);
}

.footer__bottom-links {
    display: flex;
    gap: var(--space-lg);
}

.footer__bottom-links a {
    color: rgba(255,255,255,0.4);
    font-size: var(--fs-xs);
}

.footer__bottom-links a:hover {
    color: var(--color-accent);
}

@media (max-width: 1024px) {
    .footer__grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    .footer__bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

/* ============================================================
   FLOATING CTA (Telegram/Phone)
   ============================================================ */
.floating-cta {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    z-index: 900;
}

.floating-cta__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition);
    color: var(--color-white);
}

.floating-cta__btn:hover {
    transform: scale(1.1);
    color: var(--color-white);
}

.floating-cta__btn--telegram {
    background: #0088cc;
}

.floating-cta__btn--phone {
    background: var(--color-accent);
}

.floating-cta__btn svg {
    width: 24px;
    height: 24px;
}

/* ============================================================
   CTA SECTION (contact form band)
   ============================================================ */
.cta-section {
    background: var(--color-primary);
    padding: var(--space-3xl) 0;
    color: var(--color-white);
}

.cta-section__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.cta-section__title {
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.cta-section__text {
    color: rgba(255,255,255,0.7);
    margin-bottom: var(--space-lg);
}

.cta-section .form-input {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
    color: var(--color-white);
}

.cta-section .form-input::placeholder {
    color: rgba(255,255,255,0.5);
}

.cta-section .form-input:focus {
    border-color: var(--color-accent);
    background: rgba(255,255,255,0.15);
}

@media (max-width: 768px) {
    .cta-section__inner {
        grid-template-columns: 1fr;
    }
}