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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #050816;
    color: #ffffff;
    line-height: 1.6;
}

section {
    padding: 90px 10%;
}

h1 {
    font-size: 86px;
    letter-spacing: 10px;
}

h2 {
    font-size: 42px;
    margin-bottom: 25px;
}

p {
    font-size: 20px;
    max-width: 760px;
    color: #d6d9e6;
}

#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    text-align: center;
}

#hero video {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 20px;
}

.hero-content p {
    margin: 20px auto 35px;
    font-size: 26px;
}

.btn,
button {
    display: inline-block;
    padding: 16px 30px;
    border: 1px solid #ffffff;
    border-radius: 40px;
    background: transparent;
    color: #ffffff;
    font-size: 18px;
    text-decoration: none;
    cursor: pointer;
}

.btn:hover,
button:hover {
    background: #ffffff;
    color: #050816;
}

#about,
#services {
    background: #0b1026;
}

#pilot {
    background: #050816;
}

#contacts {
    background: #101735;
    text-align: center;
}

#contacts p {
    margin: 0 auto 30px;
}

ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-top: 30px;
}

li {
    padding: 24px;
    background: rgba(255, 255, 255, 0.07);
    border-radius: 18px;
    font-size: 18px;
}

@media (max-width: 768px) {
    section {
        padding: 70px 24px;
    }

    h1 {
        font-size: 54px;
        letter-spacing: 6px;
    }

    h2 {
        font-size: 32px;
    }

    p {
        font-size: 18px;
    }

    .hero-content p {
        font-size: 20px;
    }
}

.modal {
    display: none;
    position: fixed;
    z-index: 10;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal.active {
    display: flex;
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 420px;
    padding: 36px 28px;
    background: #101735;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 24px;
    text-align: center;
}

.modal-content h3 {
    font-size: 26px;
    margin-bottom: 24px;
}

.modal-close {
    position: absolute;
    top: 14px;
    right: 16px;
    border: none;
    padding: 0;
    font-size: 34px;
    line-height: 1;
    background: transparent;
    color: #ffffff;
}

.modal-close:hover {
    background: transparent;
    color: #d6d9e6;
}

.contact-option {
    display: block;
    margin: 12px 0;
    padding: 16px 20px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
    text-decoration: none;
    font-size: 18px;
}

.contact-option:hover {
    background: #ffffff;
    color: #050816;
}

/* ===========================
   FOOTER
=========================== */

footer {

    background: #050816;

    border-top: 1px solid rgba(255, 255, 255, .1);

    padding: 70px 10% 40px;

    text-align: center;

}

.footer-logo h2 {

    font-size: 52px;

    margin-bottom: 10px;

}

.footer-logo p {

    color: #8b94b2;

    margin: 0 auto 40px;

}

.footer-text {

    max-width: 700px;

    margin: 0 auto 40px;

}

.footer-contact {

    margin-bottom: 40px;

}

.footer-contact p {

    margin: 8px auto;

}

.footer-contact a {

    color: white;

    text-decoration: none;

}

.footer-contact a:hover {

    text-decoration: underline;

}

.footer-bottom {

    margin-top: 40px;

    padding-top: 25px;

    text-align: center;

    border-top: 1px solid rgba(255, 255, 255, .08);

}

.footer-bottom p {

    color: #7b839f;
    text-align: center;
    font-size: 15px;

}

.footer-text p,
.footer-logo p,
.footer-contact p,
.footer-bottom p {

    margin-left: auto;
    margin-right: auto;

}

.sound-btn {

    position: absolute;

    right: 30px;
    bottom: 30px;

    width: 46px;
    height: 46px;

    display: flex;
    justify-content: center;
    align-items: center;

    padding: 0;

    border: 1px solid rgba(255, 255, 255, .5);

    border-radius: 50%;

    background: rgba(5, 8, 22, .45);

    color: white;

    cursor: pointer;

    backdrop-filter: blur(8px);

}

.sound-btn:hover {

    background: white;

    color: #050816;

}

.sound-btn svg {

    width: 22px;
    height: 22px;

    display: block;

}

.play-video-btn {
    display: none;
    position: absolute;
    left: 50%;
    bottom: 34px;
    transform: translateX(-50%);
    z-index: 5;
    padding: 14px 22px;
    border: 1px solid rgba(255, 255, 255, .45);
    border-radius: 40px;
    background: rgba(5, 8, 22, .48);
    color: #ffffff;
    backdrop-filter: blur(10px);
    font-size: 16px;
}

.play-video-btn.active {
    display: inline-block;
}