.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 30px;
}

/* Header */
header {
    background: var(--black);
    border-bottom: 1px solid var(--accent-border);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 42px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 20px;
    font-size: 11px;
    font-weight: 700;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    transition: 0.3s;
}

.nav-links a:hover {
    color: var(--gold);
}

/* Hamburger Button */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: relative;
    width: 30px;
    height: 24px;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--white);
    position: absolute;
    left: 0;
    transition: all 0.3s ease;
}

.hamburger span:nth-child(1) {
    top: 0;
}

.hamburger span:nth-child(2) {
    top: 11px;
}

.hamburger span:nth-child(3) {
    top: 22px;
}

.hamburger.active span:nth-child(1) {
    top: 11px;
    transform: rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    top: 11px;
    transform: rotate(-45deg);
}

/* Sections */
.hero {
    background: var(--black);
    color: var(--white);
    padding: 80px 0 60px;
    text-align: center;
}

.benefit-section {
    padding: 100px 0 80px;
    background: var(--white);
}

.video-intro {
    background: var(--soft-gray);
    padding: 80px 0 60px;
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
}

.transformation {
    padding: 100px 0;
    background: var(--white);
}

.use-case-section {
    padding: 100px 0;
    background: var(--black);
    color: var(--white);
}

.detail-section {
    padding: 100px 0;
    background: var(--soft-gray);
    border-top: 1px solid var(--hairline);
}

.faq-section {
    padding: 100px 0;
    background: var(--white);
    border-top: 1px solid var(--line-color);
}

/* Footer */
footer {
    background: var(--black);
    color: var(--white);
    padding: 80px 0 50px;
    text-align: center;
}

.footer-nav {
    margin-bottom: 50px;
    display: flex;
    justify-content: center;
    gap: 40px;
    opacity: 0.6;
    font-size: 13px;
    list-style: none;
}

.footer-nav a {
    color: #fff;
    text-decoration: none;
}

.copyright {
    font-size: 11px;
    color: #555;
    margin-top: 50px;
}

/* Responsive */
@media (max-width: 1024px) {

    .detail-grid,
    .benefit-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .detail-grid,
    .trans-grid {
        grid-template-columns: 1fr !important;
    }

    .hamburger {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
        z-index: 1000;
        padding: 40px;
        border-left: none;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 16px;
    }

    .footer-nav {
        flex-direction: column;
        gap: 20px;
    }
}