/* Reset and variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #EF9028;
    --secondary-color: #3A3A3C;
    --white: #ffffff;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Header Styles */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
    padding: 0.5rem 0;
}

.main-header.scrolled {
    background: rgba(0, 0, 0, 0.95);
    padding: 0.3rem 0;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    flex-shrink: 0;
    transform-origin: left center;
    transition: var(--transition);
}

.logo {
    width: 220px;
    height: auto;
    transition: var(--transition);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.main-header.scrolled .logo {
    width: 180px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
    letter-spacing: 0.5px;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover::before,
.nav-link.active::before {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 100;
}

.mobile-menu-btn span {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--white);
    margin: 6px 0;
    transition: var(--transition);
    border-radius: 2px;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Styles */
@media (max-width: 768px) {
    .header-container {
        padding: 0.5rem 1.5rem;
    }

    .logo {
        width: 160px;
    }

    .main-header.scrolled .logo {
        width: 140px;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-list {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        gap: 0;
        padding: 6rem 2rem;
        transition: var(--transition);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    }

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

    .nav-link {
        display: block;
        padding: 1.2rem 0;
        font-size: 1.4rem;
        opacity: 0;
        transform: translateX(50px);
        text-align: center;
    }

    .nav-list.active .nav-link {
        opacity: 1;
        transform: translateX(0);
        transition: all 0.4s ease;
    }

    .nav-list.active .nav-link:nth-child(1) { transition-delay: 0.1s; }
    .nav-list.active .nav-link:nth-child(2) { transition-delay: 0.2s; }
    .nav-list.active .nav-link:nth-child(3) { transition-delay: 0.3s; }
    .nav-list.active .nav-link:nth-child(4) { transition-delay: 0.4s; }
    .nav-list.active .nav-link:nth-child(5) { transition-delay: 0.5s; }
}

/* Disable animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
    .nav-link,
    .nav-link::before,
    .mobile-menu-btn span,
    .nav-list {
        transition: none;
    }

    .nav-list.active .nav-link {
        transition: none;
        transition-delay: 0s;
    }
}