/* ===== HEADER STYLES ===== */
header {
    position: sticky;
    top: 0;
    background: var(--bg);
    backdrop-filter: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 0.8rem 0;
}

.main-content {
    margin-top: 0;
}

header.scrolled {
    padding: 0.8rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0;
}

.logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.logo:hover {
    transform: translateY(-1px);
}

.logo img {
    height: 40px;
}

/* Primary Menu */
#primary-menu {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

#primary-menu a {
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition);
    color: var(--text);
}

#primary-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

#primary-menu a:hover {
    color: var(--primary);
}

#primary-menu a:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* ===== MOBILE MENU STYLES ===== */
.mobile-menu-btn {
    display: none;
    background: rgba(67, 97, 238, 0.08);
    border: none;
    border-radius: 12px;
    padding: 10px 14px;
    cursor: pointer;
    font-size: 1.2rem;
    color: #4361ee;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease, transform 0.2s ease;
    z-index: 1001;
    margin-left: 50%;
}

.mobile-menu-btn:hover {
    background: rgba(67, 97, 238, 0.15);
    transform: scale(1.05);
}

.mobile-menu-btn i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 998;
}

.mobile-menu-overlay.active {
    display: block;
    opacity: 1;
    pointer-events: auto;
}

/* Mobile menu open state */
body.mobile-menu-open {
    overflow: hidden;
}

.mobile-menu-open .mobile-menu-btn i {
    transform: rotate(180deg);
}

/* ===== RESPONSIVE HEADER ===== */
@media (max-width: 768px) {
    /* Modern Mobile Header */
    #header {
        background: rgba(255, 255, 255, 0.85);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 2000;
        transition: background 0.3s ease, box-shadow 0.3s ease;
    }

    /* Logo */
    #header .logo img {
        max-height: 40px;
        transition: transform 0.3s ease;
    }

    /* Mobile button */
    .mobile-menu-btn {
        display: flex;
    }

    /* Modern Mobile Menu */
    #primary-menu {
        position: fixed;
        top: 70px;
        right: 12px;
        left: 12px;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(12px);
        border-radius: 20px;
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
        padding: 20px;
        list-style: none;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        transform: translateY(-20px);
        opacity: 0;
        pointer-events: none;
        transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 2001;
        margin: 0;
    }

    #primary-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    #primary-menu li {
        width: 100%;
        margin: 0;
    }

    #primary-menu li a {
        display: block;
        width: 100%;
        padding: 14px 18px;
        border-radius: 14px;
        font-size: 1rem;
        font-weight: 500;
        color: #0f172a;
        text-decoration: none;
        background: rgba(67, 97, 238, 0.05);
        transition: background 0.3s ease, transform 0.2s ease;
        border: none;
    }

    #primary-menu li a::after {
        display: none;
    }

    #primary-menu li a:hover {
        background: rgba(67, 97, 238, 0.15);
        transform: translateX(6px);
        color: #4361ee;
    }

    /* Hide desktop header actions */
    .header-actions .btn-outline {
        display: none;
    }
}

@media (max-width: 480px) {
    #primary-menu {
        right: 8px;
        left: 8px;
        top: 65px;
    }
}