/* ===================================
   Header Styles
   =================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding-top: calc(0.8rem + env(safe-area-inset-top));
    padding-bottom: 0.8rem;
    padding-left: 0;
    padding-right: 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.95);
}

.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: all var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

.logo-img {
    height: 46px;
    width: auto;
    object-fit: contain;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    padding: var(--space-sm) 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

.nav-link:hover::after {
    width: 100%;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-base);
}

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

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    flex-direction: column;
    gap: var(--space-md);
    z-index: calc(var(--z-sticky) - 1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all var(--transition-base), visibility 0s var(--transition-base);
}

.mobile-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: all var(--transition-base), visibility 0s;
}

.mobile-nav-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-md);
    border-radius: 0px;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(65, 209, 236, 0.1);
    border-color: var(--color-primary);
    transform: translateX(10px);
}

/* Responsive */
/* Responsive */
@media (max-width: 1024px) {
    .header-container {
        padding: 0 var(--container-padding);
    }

    .nav {
        display: none;
    }

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

    .mobile-nav {
        display: flex;
        top: 66px;
        /* Adjust based on header height */
        backdrop-filter: none;
        background: rgba(10, 10, 15, 0.98);
    }
}

@media (max-width: 768px) {
    .header {
        padding-top: calc(0.5rem + env(safe-area-inset-top));
        padding-bottom: 0.5rem;
        backdrop-filter: none;
        background: rgba(10, 10, 15, 0.98);
    }

    .header.scrolled {
        background: #0a0a0f;
    }

    .logo-img {
        height: 32px;
    }

    .mobile-nav {
        top: calc(52px + env(safe-area-inset-top));
        /* Adjust for smaller header + safe area */
    }

    .mobile-nav-link {
        font-size: 0.9rem;
        padding: var(--space-sm) var(--space-md);
    }
}