/* --- Header Styles --- */
.site-header {
    background: #ffffff;
    border-bottom: 1px solid #E2E8F0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}
.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header-logo a {
    text-decoration: none;
    display: flex;
    flex-direction: column;
}
.logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    color: #1A2B4C;
    line-height: 1.2;
}
.logo-desc {
    font-size: 0.75rem;
    color: #475569;
}
.header-menu {
    display: flex;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.header-menu a {
    text-decoration: none;
    color: #0F172A;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s;
}
.header-menu a:hover {
    color: #2563EB;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}
.header-phone {
    font-weight: 700;
    color: #1A2B4C;
    text-decoration: none;
    font-size: 1.125rem;
}
.header-phone:hover {
    color: #2563EB;
}
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #1A2B4C;
    cursor: pointer;
    padding: 8px;
}

/* --- Mobile Navigation --- */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.4);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    backdrop-filter: blur(4px);
}
.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}
.mobile-nav-content {
    position: absolute;
    top: 0;
    right: -100%;
    width: 300px;
    max-width: 80%;
    height: 100%;
    background: #ffffff;
    padding: 40px 24px;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 25px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
}
.mobile-nav-overlay.active .mobile-nav-content {
    right: 0;
}
.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: #475569;
    cursor: pointer;
    padding: 8px;
}
.mobile-menu {
    list-style: none;
    padding: 0;
    margin: 40px 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.mobile-menu a {
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
    color: #0F172A;
}
.mobile-contact {
    margin-top: auto;
    padding-top: 24px;
    border-top: 1px solid #E2E8F0;
}
.mobile-contact p {
    font-size: 0.875rem;
    color: #475569;
    margin-bottom: 8px;
}
.header-phone-mobile {
    font-size: 1.25rem;
    font-weight: 700;
    color: #2563EB;
    text-decoration: none;
}

/* --- Footer Styles --- */
.site-footer {
    background: #0F172A;
    color: #F8FAFC;
    padding: 60px 0 30px;
    margin-top: 60px;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    clear: both;
}
.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-logo {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: #FFFFFF;
}
.footer-desc {
    color: #94A3B8;
    line-height: 1.6;
    max-width: 400px;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.footer-links a {
    color: #CBD5E1;
    text-decoration: none;
    transition: color 0.3s;
}
.footer-links a:hover {
    color: #38BDF8;
}
.footer-phone {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: #FFFFFF;
    text-decoration: none;
    margin-bottom: 8px;
}
.footer-address {
    color: #94A3B8;
}
.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px 0;
    border-top: 1px solid #334155;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #64748B;
    font-size: 0.875rem;
}
.footer-dev a {
    color: #94A3B8;
    text-decoration: none;
    transition: color 0.3s;
}
.footer-dev a:hover {
    color: #38BDF8;
}

/* --- Responsive --- */
@media (max-width: 992px) {
    .header-menu, .header-phone {
        display: none;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}