/* ========================================
   Header & Navigation
   ======================================== */

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.95);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.3);
}

.logo {
    height: 40px;
}

.logo img {
    height: 100%;
    width: auto;
}

/* Hamburger Menu */
.hamburger {
    width: 30px;
    height: 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: none;
    z-index: 1001;
}

.hamburger span {
    width: 100%;
    height: 2px;
    background-color: #000;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Navigation Menu */
.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: #fff;
    z-index: 1000;
    transition: right 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.nav-close {
    position: absolute;
    top: 30px;
    right: 50px;
    width: 40px;
    height: 40px;
    cursor: none;
    z-index: 1001;
    transition: transform 0.3s ease;
}

.nav-close:hover {
    transform: rotate(90deg);
}

.nav-close::before,
.nav-close::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #000;
    transition: all 0.3s ease;
}

.nav-close::before {
    transform: rotate(45deg);
}

.nav-close::after {
    transform: rotate(-45deg);
}

.nav-close:hover::before,
.nav-close:hover::after {
    background-color: #666;
}

.nav-links {
    list-style: none;
    text-align: center;
    position: relative;
    z-index: 1;
    padding-top: 60px;
}

.nav-links li {
    margin: 30px 0;
}

.nav-links a {
    font-size: 48px;
    font-weight: 600;
    color: #000;
    text-decoration: none;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: #666;
}

@media (max-width: 768px) {
    .nav-links {
        padding-top: 40px;
    }

    .nav-links a {
        font-size: 32px;
    }

    .nav-links li {
        margin: 20px 0;
    }
}